From 50a01e6440020877c2f71bc5ac4d818d9b8f31c1 Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Mon, 19 Dec 2011 15:50:14 +0530 Subject: ARM: OMAP2+: Make cpu_rev static global variable As part of omap revision code cleanup, make cpu_rev variable static global to the file (id.c). This is needed so we can split the SoC detection from SoC feature detection in the following patch. Also move omap3_cpuinfo function a bit as that will be shared by other omap3 like SoCs. Signed-off-by: Vaibhav Hiremath [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 146 +++++++++++++++++++++++------------------------ 1 file changed, 72 insertions(+), 74 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 6c5826605eae..752dcae8f78a 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -29,7 +29,7 @@ #include "control.h" static unsigned int omap_revision; - +static const char *cpu_rev; u32 omap_features; unsigned int omap_rev(void) @@ -166,6 +166,56 @@ static void __init omap24xx_check_revision(void) pr_info("\n"); } +#define OMAP3_SHOW_FEATURE(feat) \ + if (omap3_has_ ##feat()) \ + printk(#feat" "); + +static void __init omap3_cpuinfo(void) +{ + const char *cpu_name; + + /* + * OMAP3430 and OMAP3530 are assumed to be same. + * + * OMAP3525, OMAP3515 and OMAP3503 can be detected only based + * on available features. Upon detection, update the CPU id + * and CPU class bits. + */ + if (cpu_is_omap3630()) { + cpu_name = "OMAP3630"; + } else if (cpu_is_omap3517()) { + /* AM35xx devices */ + cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505"; + } else if (cpu_is_ti816x()) { + cpu_name = "TI816X"; + } else if (cpu_is_am335x()) { + cpu_name = "AM335X"; + } else if (cpu_is_ti814x()) { + cpu_name = "TI814X"; + } else if (omap3_has_iva() && omap3_has_sgx()) { + /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */ + cpu_name = "OMAP3430/3530"; + } else if (omap3_has_iva()) { + cpu_name = "OMAP3525"; + } else if (omap3_has_sgx()) { + cpu_name = "OMAP3515"; + } else { + cpu_name = "OMAP3503"; + } + + /* Print verbose information */ + pr_info("%s ES%s (", cpu_name, cpu_rev); + + OMAP3_SHOW_FEATURE(l2cache); + OMAP3_SHOW_FEATURE(iva); + OMAP3_SHOW_FEATURE(sgx); + OMAP3_SHOW_FEATURE(neon); + OMAP3_SHOW_FEATURE(isp); + OMAP3_SHOW_FEATURE(192mhz_clk); + + printk(")\n"); +} + #define OMAP3_CHECK_FEATURE(status,feat) \ if (((status & OMAP3_ ##feat## _MASK) \ >> OMAP3_ ##feat## _SHIFT) != FEAT_ ##feat## _NONE) { \ @@ -231,7 +281,7 @@ static void __init ti81xx_check_features(void) omap_features = OMAP3_HAS_NEON; } -static void __init omap3_check_revision(const char **cpu_rev) +static void __init omap3_check_revision(void) { u32 cpuid, idcode; u16 hawkeye; @@ -245,7 +295,7 @@ static void __init omap3_check_revision(const char **cpu_rev) cpuid = read_cpuid(CPUID_ID); if ((((cpuid >> 4) & 0xfff) == 0xc08) && ((cpuid & 0xf) == 0x0)) { omap_revision = OMAP3430_REV_ES1_0; - *cpu_rev = "1.0"; + cpu_rev = "1.0"; return; } @@ -266,26 +316,26 @@ static void __init omap3_check_revision(const char **cpu_rev) case 0: /* Take care of early samples */ case 1: omap_revision = OMAP3430_REV_ES2_0; - *cpu_rev = "2.0"; + cpu_rev = "2.0"; break; case 2: omap_revision = OMAP3430_REV_ES2_1; - *cpu_rev = "2.1"; + cpu_rev = "2.1"; break; case 3: omap_revision = OMAP3430_REV_ES3_0; - *cpu_rev = "3.0"; + cpu_rev = "3.0"; break; case 4: omap_revision = OMAP3430_REV_ES3_1; - *cpu_rev = "3.1"; + cpu_rev = "3.1"; break; case 7: /* FALLTHROUGH */ default: /* Use the latest known revision as default */ omap_revision = OMAP3430_REV_ES3_1_2; - *cpu_rev = "3.1.2"; + cpu_rev = "3.1.2"; } break; case 0xb868: @@ -298,13 +348,13 @@ static void __init omap3_check_revision(const char **cpu_rev) switch (rev) { case 0: omap_revision = OMAP3517_REV_ES1_0; - *cpu_rev = "1.0"; + cpu_rev = "1.0"; break; case 1: /* FALLTHROUGH */ default: omap_revision = OMAP3517_REV_ES1_1; - *cpu_rev = "1.1"; + cpu_rev = "1.1"; } break; case 0xb891: @@ -313,60 +363,60 @@ static void __init omap3_check_revision(const char **cpu_rev) switch(rev) { case 0: /* Take care of early samples */ omap_revision = OMAP3630_REV_ES1_0; - *cpu_rev = "1.0"; + cpu_rev = "1.0"; break; case 1: omap_revision = OMAP3630_REV_ES1_1; - *cpu_rev = "1.1"; + cpu_rev = "1.1"; break; case 2: /* FALLTHROUGH */ default: omap_revision = OMAP3630_REV_ES1_2; - *cpu_rev = "1.2"; + cpu_rev = "1.2"; } break; case 0xb81e: switch (rev) { case 0: omap_revision = TI8168_REV_ES1_0; - *cpu_rev = "1.0"; + cpu_rev = "1.0"; break; case 1: /* FALLTHROUGH */ default: omap_revision = TI8168_REV_ES1_1; - *cpu_rev = "1.1"; + cpu_rev = "1.1"; break; } break; case 0xb944: omap_revision = AM335X_REV_ES1_0; - *cpu_rev = "1.0"; + cpu_rev = "1.0"; case 0xb8f2: switch (rev) { case 0: /* FALLTHROUGH */ case 1: omap_revision = TI8148_REV_ES1_0; - *cpu_rev = "1.0"; + cpu_rev = "1.0"; break; case 2: omap_revision = TI8148_REV_ES2_0; - *cpu_rev = "2.0"; + cpu_rev = "2.0"; break; case 3: /* FALLTHROUGH */ default: omap_revision = TI8148_REV_ES2_1; - *cpu_rev = "2.1"; + cpu_rev = "2.1"; break; } break; default: /* Unknown default to latest silicon rev as default */ omap_revision = OMAP3630_REV_ES1_2; - *cpu_rev = "1.2"; + cpu_rev = "1.2"; pr_warn("Warning: unknown chip type; assuming OMAP3630ES1.2\n"); } } @@ -444,63 +494,11 @@ static void __init omap4_check_revision(void) ((omap_rev() >> 12) & 0xf), ((omap_rev() >> 8) & 0xf)); } -#define OMAP3_SHOW_FEATURE(feat) \ - if (omap3_has_ ##feat()) \ - printk(#feat" "); - -static void __init omap3_cpuinfo(const char *cpu_rev) -{ - const char *cpu_name; - - /* - * OMAP3430 and OMAP3530 are assumed to be same. - * - * OMAP3525, OMAP3515 and OMAP3503 can be detected only based - * on available features. Upon detection, update the CPU id - * and CPU class bits. - */ - if (cpu_is_omap3630()) { - cpu_name = "OMAP3630"; - } else if (cpu_is_omap3517()) { - /* AM35xx devices */ - cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505"; - } else if (cpu_is_ti816x()) { - cpu_name = "TI816X"; - } else if (cpu_is_am335x()) { - cpu_name = "AM335X"; - } else if (cpu_is_ti814x()) { - cpu_name = "TI814X"; - } else if (omap3_has_iva() && omap3_has_sgx()) { - /* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */ - cpu_name = "OMAP3430/3530"; - } else if (omap3_has_iva()) { - cpu_name = "OMAP3525"; - } else if (omap3_has_sgx()) { - cpu_name = "OMAP3515"; - } else { - cpu_name = "OMAP3503"; - } - - /* Print verbose information */ - pr_info("%s ES%s (", cpu_name, cpu_rev); - - OMAP3_SHOW_FEATURE(l2cache); - OMAP3_SHOW_FEATURE(iva); - OMAP3_SHOW_FEATURE(sgx); - OMAP3_SHOW_FEATURE(neon); - OMAP3_SHOW_FEATURE(isp); - OMAP3_SHOW_FEATURE(192mhz_clk); - - printk(")\n"); -} - /* * Try to detect the exact revision of the omap we're running on */ void __init omap2_check_revision(void) { - const char *cpu_rev; - /* * At this point we have an idea about the processor revision set * earlier with omap2_set_globals_tap(). @@ -508,7 +506,7 @@ void __init omap2_check_revision(void) if (cpu_is_omap24xx()) { omap24xx_check_revision(); } else if (cpu_is_omap34xx()) { - omap3_check_revision(&cpu_rev); + omap3_check_revision(); /* TI81XX doesn't have feature register */ if (!cpu_is_ti81xx()) @@ -516,7 +514,7 @@ void __init omap2_check_revision(void) else ti81xx_check_features(); - omap3_cpuinfo(cpu_rev); + omap3_cpuinfo(); return; } else if (cpu_is_omap44xx()) { omap4_check_revision(); -- cgit v1.2.3 From 4de34f3572882fd0a0e655cda494577c22663215 Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Mon, 19 Dec 2011 15:50:15 +0530 Subject: ARM: OMAP2+: split omap2/3/4_check_revision function We need to detect the SoC revision early, but the SoC feature detection can be done later on. In order to allow further clean-up later on, this patch separates the SoC revision check from the SoC feature check. This patch doesn't change functionality or behavior of the code execution; it barely cleans up the code and splits into SoC specific implementation for Rev ID and feature detection. Signed-off-by: Vaibhav Hiremath [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 46 +++++++---------------------------- arch/arm/mach-omap2/io.c | 9 ++++++- arch/arm/plat-omap/include/plat/cpu.h | 7 +++++- 3 files changed, 23 insertions(+), 39 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 752dcae8f78a..92e4d5558b1e 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -112,7 +112,7 @@ void omap_get_die_id(struct omap_die_id *odi) odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3); } -static void __init omap24xx_check_revision(void) +void __init omap2xxx_check_revision(void) { int i, j; u32 idcode, prod_id; @@ -222,7 +222,7 @@ static void __init omap3_cpuinfo(void) omap_features |= OMAP3_HAS_ ##feat; \ } -static void __init omap3_check_features(void) +void __init omap3xxx_check_features(void) { u32 status; @@ -249,9 +249,11 @@ static void __init omap3_check_features(void) * TODO: Get additional info (where applicable) * e.g. Size of L2 cache. */ + + omap3_cpuinfo(); } -static void __init omap4_check_features(void) +void __init omap4xxx_check_features(void) { u32 si_type; @@ -276,12 +278,13 @@ static void __init omap4_check_features(void) } } -static void __init ti81xx_check_features(void) +void __init ti81xx_check_features(void) { omap_features = OMAP3_HAS_NEON; + omap3_cpuinfo(); } -static void __init omap3_check_revision(void) +void __init omap3xxx_check_revision(void) { u32 cpuid, idcode; u16 hawkeye; @@ -421,7 +424,7 @@ static void __init omap3_check_revision(void) } } -static void __init omap4_check_revision(void) +void __init omap4xxx_check_revision(void) { u32 idcode; u16 hawkeye; @@ -494,37 +497,6 @@ static void __init omap4_check_revision(void) ((omap_rev() >> 12) & 0xf), ((omap_rev() >> 8) & 0xf)); } -/* - * Try to detect the exact revision of the omap we're running on - */ -void __init omap2_check_revision(void) -{ - /* - * At this point we have an idea about the processor revision set - * earlier with omap2_set_globals_tap(). - */ - if (cpu_is_omap24xx()) { - omap24xx_check_revision(); - } else if (cpu_is_omap34xx()) { - omap3_check_revision(); - - /* TI81XX doesn't have feature register */ - if (!cpu_is_ti81xx()) - omap3_check_features(); - else - ti81xx_check_features(); - - omap3_cpuinfo(); - return; - } else if (cpu_is_omap44xx()) { - omap4_check_revision(); - omap4_check_features(); - return; - } else { - pr_err("OMAP revision unknown, please fix!\n"); - } -} - /* * Set up things for map_io and processor detection later on. Gets called * pretty much first thing from board init. For multi-omap, this gets diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 73d617f0dc4a..58bd138e5a98 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -342,7 +342,6 @@ static int _set_hwmod_postsetup_state(struct omap_hwmod *oh, void *data) static void __init omap_common_init_early(void) { - omap2_check_revision(); omap_init_consistent_dma_size(); } @@ -383,6 +382,7 @@ static void __init omap_hwmod_init_postsetup(void) void __init omap2420_init_early(void) { omap2_set_globals_242x(); + omap2xxx_check_revision(); omap_common_init_early(); omap2xxx_voltagedomains_init(); omap242x_powerdomains_init(); @@ -395,6 +395,7 @@ void __init omap2420_init_early(void) void __init omap2430_init_early(void) { omap2_set_globals_243x(); + omap2xxx_check_revision(); omap_common_init_early(); omap2xxx_voltagedomains_init(); omap243x_powerdomains_init(); @@ -413,6 +414,8 @@ void __init omap2430_init_early(void) void __init omap3_init_early(void) { omap2_set_globals_3xxx(); + omap3xxx_check_revision(); + omap3xxx_check_features(); omap_common_init_early(); omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); @@ -445,6 +448,8 @@ void __init am35xx_init_early(void) void __init ti81xx_init_early(void) { omap2_set_globals_ti81xx(); + omap3xxx_check_revision(); + ti81xx_check_features(); omap_common_init_early(); omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); @@ -459,6 +464,8 @@ void __init ti81xx_init_early(void) void __init omap4430_init_early(void) { omap2_set_globals_443x(); + omap4xxx_check_revision(); + omap4xxx_check_features(); omap_common_init_early(); omap44xx_voltagedomains_init(); omap44xx_powerdomains_init(); diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index 6b51086fce18..428ccb12d168 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -451,7 +451,12 @@ IS_OMAP_TYPE(3517, 0x3517) #define OMAP447X_CLASS 0x44700044 #define OMAP4470_REV_ES1_0 (OMAP447X_CLASS | (0x10 << 8)) -void omap2_check_revision(void); +void omap2xxx_check_revision(void); +void omap3xxx_check_revision(void); +void omap4xxx_check_revision(void); +void omap3xxx_check_features(void); +void ti81xx_check_features(void); +void omap4xxx_check_features(void); /* * Runtime detection of OMAP3 features -- cgit v1.2.3 From 2abf13c9ffdcde537fc54b83f1bcd50cc758beca Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 24 Dec 2011 11:38:27 +0900 Subject: ARM: S3C64XX: Add basic cpuidle driver Add a very basic cpuidle driver for S3C64xx which merely drives the CPU into IDLE mode. We could do this with pm_idle but the more modern idiom is to use cpuidle and the intention is to go further and support STOP and DEEP-STOP states in conjunction with the pm_domain framework. The actual state entry code was lifted from Tomasz Figa's work on spica. Signed-off-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/Makefile | 1 + arch/arm/mach-s3c64xx/cpuidle.c | 91 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 92 insertions(+) create mode 100644 arch/arm/mach-s3c64xx/cpuidle.c (limited to 'arch') diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile index 1822ac2eba31..610fe2807ed7 100644 --- a/arch/arm/mach-s3c64xx/Makefile +++ b/arch/arm/mach-s3c64xx/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_CPU_S3C6410) += s3c6410.o # PM obj-$(CONFIG_PM) += pm.o irq-pm.o sleep.o +obj-$(CONFIG_CPU_IDLE) += cpuidle.o # DMA support diff --git a/arch/arm/mach-s3c64xx/cpuidle.c b/arch/arm/mach-s3c64xx/cpuidle.c new file mode 100644 index 000000000000..625d2c7b4540 --- /dev/null +++ b/arch/arm/mach-s3c64xx/cpuidle.c @@ -0,0 +1,91 @@ +/* linux/arch/arm/mach-s3c64xx/cpuidle.c + * + * Copyright (c) 2011 Wolfson Microelectronics, plc + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include +#include + +static int s3c64xx_enter_idle(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + struct timeval before, after; + unsigned long tmp; + int idle_time; + + local_irq_disable(); + do_gettimeofday(&before); + + /* Setup PWRCFG to enter idle mode */ + tmp = __raw_readl(S3C64XX_PWR_CFG); + tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK; + tmp |= S3C64XX_PWRCFG_CFG_WFI_IDLE; + __raw_writel(tmp, S3C64XX_PWR_CFG); + + cpu_do_idle(); + + do_gettimeofday(&after); + local_irq_enable(); + idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + + (after.tv_usec - before.tv_usec); + + dev->last_residency = idle_time; + return index; +} + +static struct cpuidle_state s3c64xx_cpuidle_set[] = { + [0] = { + .enter = s3c64xx_enter_idle, + .exit_latency = 1, + .target_residency = 100000, + .flags = CPUIDLE_FLAG_TIME_VALID, + .name = "IDLE", + .desc = "System active, ARM gated", + }, +}; + +static struct cpuidle_driver s3c64xx_cpuidle_driver = { + .name = "s3c64xx_cpuidle", + .owner = THIS_MODULE, + .state_count = ARRAY_SIZE(s3c64xx_cpuidle_set), +}; + +static struct cpuidle_device s3c64xx_cpuidle_device = { + .state_count = ARRAY_SIZE(s3c64xx_cpuidle_set), +}; + +static int __init s3c64xx_init_cpuidle(void) +{ + int ret; + + memcpy(s3c64xx_cpuidle_driver.states, s3c64xx_cpuidle_set, + sizeof(s3c64xx_cpuidle_set)); + cpuidle_register_driver(&s3c64xx_cpuidle_driver); + + ret = cpuidle_register_device(&s3c64xx_cpuidle_device); + if (ret) { + pr_err("Failed to register cpuidle device: %d\n", ret); + return ret; + } + + return 0; +} +device_initcall(s3c64xx_init_cpuidle); -- cgit v1.2.3 From bfc0b9c8a9d546eb53a3491c893fad72d96540cb Mon Sep 17 00:00:00 2001 From: Lothar Waßmann Date: Tue, 6 Dec 2011 14:41:28 +0100 Subject: arm/mxs: Add support for SSP/MMC ports 2 & 3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit i.MX28 has four SSP/MMC units, only two of which are currently usable. Signed-off-by: Lothar Waßmann Reviewed-by: Wolfram Sang Signed-off-by: Shawn Guo --- arch/arm/mach-mxs/clock-mx28.c | 4 ++++ arch/arm/mach-mxs/devices/platform-mxs-mmc.c | 2 ++ 2 files changed, 6 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index 5d68e4152220..f71d01282dcd 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -654,6 +654,8 @@ static struct clk_lookup lookups[] = { _REGISTER_CLOCK("mxs-dma-apbx", NULL, xbus_clk) _REGISTER_CLOCK("mxs-mmc.0", NULL, ssp0_clk) _REGISTER_CLOCK("mxs-mmc.1", NULL, ssp1_clk) + _REGISTER_CLOCK("mxs-mmc.2", NULL, ssp2_clk) + _REGISTER_CLOCK("mxs-mmc.3", NULL, ssp3_clk) _REGISTER_CLOCK("flexcan.0", NULL, can0_clk) _REGISTER_CLOCK("flexcan.1", NULL, can1_clk) _REGISTER_CLOCK(NULL, "usb0", usb0_clk) @@ -803,6 +805,8 @@ int __init mx28_clocks_init(void) */ clk_set_parent(&ssp0_clk, &ref_io0_clk); clk_set_parent(&ssp1_clk, &ref_io0_clk); + clk_set_parent(&ssp2_clk, &ref_io1_clk); + clk_set_parent(&ssp3_clk, &ref_io1_clk); clk_prepare_enable(&cpu_clk); clk_prepare_enable(&hbus_clk); diff --git a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c index 382dacbeca21..bef9d923f54e 100644 --- a/arch/arm/mach-mxs/devices/platform-mxs-mmc.c +++ b/arch/arm/mach-mxs/devices/platform-mxs-mmc.c @@ -41,6 +41,8 @@ const struct mxs_mxs_mmc_data mx23_mxs_mmc_data[] __initconst = { const struct mxs_mxs_mmc_data mx28_mxs_mmc_data[] __initconst = { mxs_mxs_mmc_data_entry(MX28, 0, 0), mxs_mxs_mmc_data_entry(MX28, 1, 1), + mxs_mxs_mmc_data_entry(MX28, 2, 2), + mxs_mxs_mmc_data_entry(MX28, 3, 3), }; #endif -- cgit v1.2.3 From c62ab98584396480467a6e422ab172644862de35 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 16 Jan 2012 16:51:31 -0200 Subject: ARM: mx28: Let audio support be built by default Let audio support be built by default. As sgtl5000 codec is connected via I2C, let MXS I2C driver also be built by default. Signed-off-by: Fabio Estevam Acked-by: Marek Vasut Signed-off-by: Shawn Guo --- arch/arm/configs/mxs_defconfig | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig index 6ee781bf6bf1..1ebbf451c48d 100644 --- a/arch/arm/configs/mxs_defconfig +++ b/arch/arm/configs/mxs_defconfig @@ -77,10 +77,10 @@ CONFIG_DEVPTS_MULTIPLE_INSTANCES=y CONFIG_SERIAL_AMBA_PL011=y CONFIG_SERIAL_AMBA_PL011_CONSOLE=y # CONFIG_HW_RANDOM is not set -CONFIG_I2C=m +CONFIG_I2C=y # CONFIG_I2C_COMPAT is not set -CONFIG_I2C_CHARDEV=m -CONFIG_I2C_MXS=m +CONFIG_I2C_CHARDEV=y +CONFIG_I2C_MXS=y CONFIG_SPI=y CONFIG_SPI_GPIO=m CONFIG_DEBUG_GPIO=y @@ -90,6 +90,20 @@ CONFIG_GPIO_SYSFS=y CONFIG_DISPLAY_SUPPORT=m # CONFIG_HID_SUPPORT is not set # CONFIG_USB_SUPPORT is not set +CONFIG_SOUND=y +CONFIG_SND=y +CONFIG_SND_TIMER=y +CONFIG_SND_PCM=y +CONFIG_SND_JACK=y +CONFIG_SND_DRIVERS=y +CONFIG_SND_ARM=y +CONFIG_SND_SOC=y +CONFIG_SND_MXS_SOC=y +CONFIG_SND_SOC_MXS_SGTL5000=y +CONFIG_SND_SOC_I2C_AND_SPI=y +CONFIG_SND_SOC_SGTL5000=y +CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_MMC=y CONFIG_MMC_MXS=y CONFIG_RTC_CLASS=y -- cgit v1.2.3 From a62407256bbcba8e3f62695a87534050ceec0e6f Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sat, 10 Sep 2011 12:29:43 +0200 Subject: ARM: mx28: check for gated clocks when setting saif divider Like with all other clocks, the divider for the SAIF devices should not be altered when the clock is gated. Bail out when this is the case like the other clocks do. Signed-off-by: Wolfram Sang Cc: Sascha Hauer Cc: Dong Aisheng-B29396 Signed-off-by: Shawn Guo --- arch/arm/mach-mxs/clock-mx28.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index f71d01282dcd..54d82a4b4cf0 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -477,6 +477,10 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_##rs); \ reg &= ~BM_CLKCTRL_##rs##_DIV; \ reg |= div << BP_CLKCTRL_##rs##_DIV; \ + if (reg & (1 << clk->enable_shift)) { \ + pr_err("%s: clock is gated\n", __func__); \ + return -EINVAL; \ + } \ __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##rs); \ \ for (i = 10000; i; i--) \ -- cgit v1.2.3 From 444a7c3bb897ec6a64b83d277102440c1dcc22a1 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 27 Jan 2012 12:44:29 -0200 Subject: ARM: mxs: Use a proper timeout mechanism Introduce a function for checking the busy bits of CLKCTRL register that uses a proper timeout mechanism. Remove parts of code that use busy loops and replace them with the mxs_clkctrl_timeout() function. Tested on a mx28evk by performing audio playback. Suggested-by: Wolfram Sang Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/mach-mxs/clock-mx23.c | 34 ++++------------------- arch/arm/mach-mxs/clock-mx28.c | 49 ++++----------------------------- arch/arm/mach-mxs/include/mach/common.h | 2 ++ arch/arm/mach-mxs/system.c | 16 +++++++++++ 4 files changed, 29 insertions(+), 72 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c index e12e11231dc7..293958beb505 100644 --- a/arch/arm/mach-mxs/clock-mx23.c +++ b/arch/arm/mach-mxs/clock-mx23.c @@ -223,7 +223,6 @@ static int cpu_clk_set_rate(struct clk *clk, unsigned long rate) { u32 reg, bm_busy, div_max, d, f, div, frac; unsigned long diff, parent_rate, calc_rate; - int i; parent_rate = clk_get_rate(clk->parent); @@ -275,14 +274,7 @@ static int cpu_clk_set_rate(struct clk *clk, unsigned long rate) reg |= div << BP_CLKCTRL_CPU_DIV_CPU; __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_CPU); - for (i = 10000; i; i--) - if (!(__raw_readl(CLKCTRL_BASE_ADDR + - HW_CLKCTRL_CPU) & bm_busy)) - break; - if (!i) { - pr_err("%s: divider writing timeout\n", __func__); - return -ETIMEDOUT; - } + mxs_clkctrl_timeout(HW_CLKCTRL_CPU, bm_busy); return 0; } @@ -292,7 +284,6 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ { \ u32 reg, div_max, div; \ unsigned long parent_rate; \ - int i; \ \ parent_rate = clk_get_rate(clk->parent); \ div_max = BM_CLKCTRL_##dr##_DIV >> BP_CLKCTRL_##dr##_DIV; \ @@ -310,15 +301,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ } \ __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr); \ \ - for (i = 10000; i; i--) \ - if (!(__raw_readl(CLKCTRL_BASE_ADDR + \ - HW_CLKCTRL_##dr) & BM_CLKCTRL_##dr##_BUSY)) \ - break; \ - if (!i) { \ - pr_err("%s: divider writing timeout\n", __func__); \ - return -ETIMEDOUT; \ - } \ - \ + mxs_clkctrl_timeout(HW_CLKCTRL_##dr, BM_CLKCTRL_##dr##_BUSY); \ return 0; \ } @@ -461,7 +444,7 @@ static struct clk_lookup lookups[] = { static int clk_misc_init(void) { u32 reg; - int i; + int ret; /* Fix up parent per register setting */ reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_CLKSEQ); @@ -510,14 +493,7 @@ static int clk_misc_init(void) reg |= 3 << BP_CLKCTRL_HBUS_DIV; __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_HBUS); - for (i = 10000; i; i--) - if (!(__raw_readl(CLKCTRL_BASE_ADDR + - HW_CLKCTRL_HBUS) & BM_CLKCTRL_HBUS_BUSY)) - break; - if (!i) { - pr_err("%s: divider writing timeout\n", __func__); - return -ETIMEDOUT; - } + ret = mxs_clkctrl_timeout(HW_CLKCTRL_HBUS, BM_CLKCTRL_HBUS_BUSY); /* Gate off cpu clock in WFI for power saving */ __raw_writel(BM_CLKCTRL_CPU_INTERRUPT_WAIT, @@ -532,7 +508,7 @@ static int clk_misc_init(void) reg |= 30 << BP_CLKCTRL_FRAC_IOFRAC; __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_FRAC); - return 0; + return ret; } int __init mx23_clocks_init(void) diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c index 54d82a4b4cf0..22ad12f6e4de 100644 --- a/arch/arm/mach-mxs/clock-mx28.c +++ b/arch/arm/mach-mxs/clock-mx28.c @@ -322,7 +322,6 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ { \ u32 reg, bm_busy, div_max, d, f, div, frac; \ unsigned long diff, parent_rate, calc_rate; \ - int i; \ \ div_max = BM_CLKCTRL_##dr##_DIV >> BP_CLKCTRL_##dr##_DIV; \ bm_busy = BM_CLKCTRL_##dr##_BUSY; \ @@ -396,16 +395,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ } \ __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr); \ \ - for (i = 10000; i; i--) \ - if (!(__raw_readl(CLKCTRL_BASE_ADDR + \ - HW_CLKCTRL_##dr) & bm_busy)) \ - break; \ - if (!i) { \ - pr_err("%s: divider writing timeout\n", __func__); \ - return -ETIMEDOUT; \ - } \ - \ - return 0; \ + return mxs_clkctrl_timeout(HW_CLKCTRL_##dr, bm_busy); \ } _CLK_SET_RATE(cpu_clk, CPU, FRAC0, CPU) @@ -421,7 +411,6 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ { \ u32 reg, div_max, div; \ unsigned long parent_rate; \ - int i; \ \ parent_rate = clk_get_rate(clk->parent); \ div_max = BM_CLKCTRL_##dr##_DIV >> BP_CLKCTRL_##dr##_DIV; \ @@ -439,16 +428,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ } \ __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##dr); \ \ - for (i = 10000; i; i--) \ - if (!(__raw_readl(CLKCTRL_BASE_ADDR + \ - HW_CLKCTRL_##dr) & BM_CLKCTRL_##dr##_BUSY)) \ - break; \ - if (!i) { \ - pr_err("%s: divider writing timeout\n", __func__); \ - return -ETIMEDOUT; \ - } \ - \ - return 0; \ + return mxs_clkctrl_timeout(HW_CLKCTRL_##dr, BM_CLKCTRL_##dr##_BUSY);\ } _CLK_SET_RATE1(xbus_clk, XBUS) @@ -461,7 +441,6 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ u32 reg; \ u64 lrate; \ unsigned long parent_rate; \ - int i; \ \ parent_rate = clk_get_rate(clk->parent); \ if (rate > parent_rate) \ @@ -483,16 +462,7 @@ static int name##_set_rate(struct clk *clk, unsigned long rate) \ } \ __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_##rs); \ \ - for (i = 10000; i; i--) \ - if (!(__raw_readl(CLKCTRL_BASE_ADDR + \ - HW_CLKCTRL_##rs) & BM_CLKCTRL_##rs##_BUSY)) \ - break; \ - if (!i) { \ - pr_err("%s: divider writing timeout\n", __func__); \ - return -ETIMEDOUT; \ - } \ - \ - return 0; \ + return mxs_clkctrl_timeout(HW_CLKCTRL_##rs, BM_CLKCTRL_##rs##_BUSY);\ } _CLK_SET_RATE_SAIF(saif0_clk, SAIF0) @@ -682,7 +652,7 @@ static struct clk_lookup lookups[] = { static int clk_misc_init(void) { u32 reg; - int i; + int ret; /* Fix up parent per register setting */ reg = __raw_readl(CLKCTRL_BASE_ADDR + HW_CLKCTRL_CLKSEQ); @@ -762,14 +732,7 @@ static int clk_misc_init(void) reg |= 3 << BP_CLKCTRL_HBUS_DIV; __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_HBUS); - for (i = 10000; i; i--) - if (!(__raw_readl(CLKCTRL_BASE_ADDR + - HW_CLKCTRL_HBUS) & BM_CLKCTRL_HBUS_ASM_BUSY)) - break; - if (!i) { - pr_err("%s: divider writing timeout\n", __func__); - return -ETIMEDOUT; - } + ret = mxs_clkctrl_timeout(HW_CLKCTRL_HBUS, BM_CLKCTRL_HBUS_ASM_BUSY); /* Gate off cpu clock in WFI for power saving */ __raw_writel(BM_CLKCTRL_CPU_INTERRUPT_WAIT, @@ -796,7 +759,7 @@ static int clk_misc_init(void) reg |= 30 << BP_CLKCTRL_FRAC0_IO0FRAC; __raw_writel(reg, CLKCTRL_BASE_ADDR + HW_CLKCTRL_FRAC0); - return 0; + return ret; } int __init mx28_clocks_init(void) diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h index e1237ab25862..c50c3ea28a9d 100644 --- a/arch/arm/mach-mxs/include/mach/common.h +++ b/arch/arm/mach-mxs/include/mach/common.h @@ -31,4 +31,6 @@ extern void mx28_init_irq(void); extern void icoll_init_irq(void); +extern int mxs_clkctrl_timeout(unsigned int reg_offset, unsigned int mask); + #endif /* __MACH_MXS_COMMON_H__ */ diff --git a/arch/arm/mach-mxs/system.c b/arch/arm/mach-mxs/system.c index 54f91ad1c965..7aa5ac5d78bf 100644 --- a/arch/arm/mach-mxs/system.c +++ b/arch/arm/mach-mxs/system.c @@ -37,6 +37,8 @@ #define MXS_MODULE_CLKGATE (1 << 30) #define MXS_MODULE_SFTRST (1 << 31) +#define CLKCTRL_TIMEOUT 10 /* 10 ms */ + static void __iomem *mxs_clkctrl_reset_addr; /* @@ -137,3 +139,17 @@ error: return -ETIMEDOUT; } EXPORT_SYMBOL(mxs_reset_block); + +int mxs_clkctrl_timeout(unsigned int reg_offset, unsigned int mask) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(CLKCTRL_TIMEOUT); + while (readl_relaxed(MXS_IO_ADDRESS(MXS_CLKCTRL_BASE_ADDR) + + reg_offset) & mask) { + if (time_after(jiffies, timeout)) { + pr_err("Timeout at CLKCTRL + 0x%x\n", reg_offset); + return -ETIMEDOUT; + } + } + + return 0; +} -- cgit v1.2.3 From 8c83a607a540c5014586a80d3d35015a77ed6fae Mon Sep 17 00:00:00 2001 From: Dan Liang Date: Thu, 10 Mar 2011 19:08:52 +0100 Subject: ARM: at91/at91sam9x5: overall definition Add the definitions of peripheral and system registers for sam9x5 chips family. Signed-off-by: Dan Liang Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/mach-at91/include/mach/at91sam9x5.h | 80 ++++++++++++++++++++++ .../arm/mach-at91/include/mach/at91sam9x5_matrix.h | 53 ++++++++++++++ 2 files changed, 133 insertions(+) create mode 100644 arch/arm/mach-at91/include/mach/at91sam9x5.h create mode 100644 arch/arm/mach-at91/include/mach/at91sam9x5_matrix.h (limited to 'arch') diff --git a/arch/arm/mach-at91/include/mach/at91sam9x5.h b/arch/arm/mach-at91/include/mach/at91sam9x5.h new file mode 100644 index 000000000000..8476871a2f9f --- /dev/null +++ b/arch/arm/mach-at91/include/mach/at91sam9x5.h @@ -0,0 +1,80 @@ +/* + * Chip-specific header file for the AT91SAM9x5 family + * + * Copyright (C) 2009-2012 Atmel Corporation. + * + * Common definitions. + * Based on AT91SAM9x5 datasheet. + * + * Licensed under GPLv2 or later. + */ + +#ifndef AT91SAM9X5_H +#define AT91SAM9X5_H + +/* + * Peripheral identifiers/interrupts. + */ +#define AT91SAM9X5_ID_PIOAB 2 /* Parallel I/O Controller A and B */ +#define AT91SAM9X5_ID_PIOCD 3 /* Parallel I/O Controller C and D */ +#define AT91SAM9X5_ID_SMD 4 /* SMD Soft Modem (SMD) */ +#define AT91SAM9X5_ID_USART0 5 /* USART 0 */ +#define AT91SAM9X5_ID_USART1 6 /* USART 1 */ +#define AT91SAM9X5_ID_USART2 7 /* USART 2 */ +#define AT91SAM9X5_ID_USART3 8 /* USART 3 */ +#define AT91SAM9X5_ID_TWI0 9 /* Two-Wire Interface 0 */ +#define AT91SAM9X5_ID_TWI1 10 /* Two-Wire Interface 1 */ +#define AT91SAM9X5_ID_TWI2 11 /* Two-Wire Interface 2 */ +#define AT91SAM9X5_ID_MCI0 12 /* High Speed Multimedia Card Interface 0 */ +#define AT91SAM9X5_ID_SPI0 13 /* Serial Peripheral Interface 0 */ +#define AT91SAM9X5_ID_SPI1 14 /* Serial Peripheral Interface 1 */ +#define AT91SAM9X5_ID_UART0 15 /* UART 0 */ +#define AT91SAM9X5_ID_UART1 16 /* UART 1 */ +#define AT91SAM9X5_ID_TCB 17 /* Timer Counter 0, 1, 2, 3, 4 and 5 */ +#define AT91SAM9X5_ID_PWM 18 /* Pulse Width Modulation Controller */ +#define AT91SAM9X5_ID_ADC 19 /* ADC Controller */ +#define AT91SAM9X5_ID_DMA0 20 /* DMA Controller 0 */ +#define AT91SAM9X5_ID_DMA1 21 /* DMA Controller 1 */ +#define AT91SAM9X5_ID_UHPHS 22 /* USB Host High Speed */ +#define AT91SAM9X5_ID_UDPHS 23 /* USB Device High Speed */ +#define AT91SAM9X5_ID_EMAC0 24 /* Ethernet MAC0 */ +#define AT91SAM9X5_ID_LCDC 25 /* LCD Controller */ +#define AT91SAM9X5_ID_ISI 25 /* Image Sensor Interface */ +#define AT91SAM9X5_ID_MCI1 26 /* High Speed Multimedia Card Interface 1 */ +#define AT91SAM9X5_ID_EMAC1 27 /* Ethernet MAC1 */ +#define AT91SAM9X5_ID_SSC 28 /* Synchronous Serial Controller */ +#define AT91SAM9X5_ID_CAN0 29 /* CAN Controller 0 */ +#define AT91SAM9X5_ID_CAN1 30 /* CAN Controller 1 */ +#define AT91SAM9X5_ID_IRQ0 31 /* Advanced Interrupt Controller */ + +/* + * User Peripheral physical base addresses. + */ +#define AT91SAM9X5_BASE_USART0 0xf801c000 +#define AT91SAM9X5_BASE_USART1 0xf8020000 +#define AT91SAM9X5_BASE_USART2 0xf8024000 + +/* + * System Peripherals (offset from AT91_BASE_SYS) + */ +#define AT91_DDRSDRC0 (0xffffe800 - AT91_BASE_SYS) +#define AT91_PMC (0xfffffc00 - AT91_BASE_SYS) + +/* + * Base addresses for early serial code (uncompress.h) + */ +#define AT91_DBGU AT91_BASE_DBGU0 +#define AT91_USART0 AT91SAM9X5_BASE_USART0 +#define AT91_USART1 AT91SAM9X5_BASE_USART1 +#define AT91_USART2 AT91SAM9X5_BASE_USART2 + +/* + * Internal Memory. + */ +#define AT91SAM9X5_SRAM_BASE 0x00300000 /* Internal SRAM base address */ +#define AT91SAM9X5_SRAM_SIZE SZ_32K /* Internal SRAM size (32Kb) */ + +#define AT91SAM9X5_ROM_BASE 0x00400000 /* Internal ROM base address */ +#define AT91SAM9X5_ROM_SIZE SZ_64K /* Internal ROM size (64Kb) */ + +#endif diff --git a/arch/arm/mach-at91/include/mach/at91sam9x5_matrix.h b/arch/arm/mach-at91/include/mach/at91sam9x5_matrix.h new file mode 100644 index 000000000000..a606d3966470 --- /dev/null +++ b/arch/arm/mach-at91/include/mach/at91sam9x5_matrix.h @@ -0,0 +1,53 @@ +/* + * Matrix-centric header file for the AT91SAM9x5 family + * + * Copyright (C) 2009-2012 Atmel Corporation. + * + * Only EBI related registers. + * Write Protect register definitions may be useful. + * + * Licensed under GPLv2 or later. + */ + +#ifndef AT91SAM9X5_MATRIX_H +#define AT91SAM9X5_MATRIX_H + +#define AT91_MATRIX_EBICSA (AT91_MATRIX + 0x120) /* EBI Chip Select Assignment Register */ +#define AT91_MATRIX_EBI_CS1A (1 << 1) /* Chip Select 1 Assignment */ +#define AT91_MATRIX_EBI_CS1A_SMC (0 << 1) +#define AT91_MATRIX_EBI_CS1A_SDRAMC (1 << 1) +#define AT91_MATRIX_EBI_CS3A (1 << 3) /* Chip Select 3 Assignment */ +#define AT91_MATRIX_EBI_CS3A_SMC (0 << 3) +#define AT91_MATRIX_EBI_CS3A_SMC_NANDFLASH (1 << 3) +#define AT91_MATRIX_EBI_DBPUC (1 << 8) /* Data Bus Pull-up Configuration */ +#define AT91_MATRIX_EBI_DBPU_ON (0 << 8) +#define AT91_MATRIX_EBI_DBPU_OFF (1 << 8) +#define AT91_MATRIX_EBI_VDDIOMSEL (1 << 16) /* Memory voltage selection */ +#define AT91_MATRIX_EBI_VDDIOMSEL_1_8V (0 << 16) +#define AT91_MATRIX_EBI_VDDIOMSEL_3_3V (1 << 16) +#define AT91_MATRIX_EBI_EBI_IOSR (1 << 17) /* EBI I/O slew rate selection */ +#define AT91_MATRIX_EBI_EBI_IOSR_REDUCED (0 << 17) +#define AT91_MATRIX_EBI_EBI_IOSR_NORMAL (1 << 17) +#define AT91_MATRIX_EBI_DDR_IOSR (1 << 18) /* DDR2 dedicated port I/O slew rate selection */ +#define AT91_MATRIX_EBI_DDR_IOSR_REDUCED (0 << 18) +#define AT91_MATRIX_EBI_DDR_IOSR_NORMAL (1 << 18) +#define AT91_MATRIX_NFD0_SELECT (1 << 24) /* NAND Flash Data Bus Selection */ +#define AT91_MATRIX_NFD0_ON_D0 (0 << 24) +#define AT91_MATRIX_NFD0_ON_D16 (1 << 24) +#define AT91_MATRIX_DDR_MP_EN (1 << 25) /* DDR Multi-port Enable */ +#define AT91_MATRIX_MP_OFF (0 << 25) +#define AT91_MATRIX_MP_ON (1 << 25) + +#define AT91_MATRIX_WPMR (AT91_MATRIX + 0x1E4) /* Write Protect Mode Register */ +#define AT91_MATRIX_WPMR_WPEN (1 << 0) /* Write Protect ENable */ +#define AT91_MATRIX_WPMR_WP_WPDIS (0 << 0) +#define AT91_MATRIX_WPMR_WP_WPEN (1 << 0) +#define AT91_MATRIX_WPMR_WPKEY (0xFFFFFF << 8) /* Write Protect KEY */ + +#define AT91_MATRIX_WPSR (AT91_MATRIX + 0x1E8) /* Write Protect Status Register */ +#define AT91_MATRIX_WPSR_WPVS (1 << 0) /* Write Protect Violation Status */ +#define AT91_MATRIX_WPSR_NO_WPV (0 << 0) +#define AT91_MATRIX_WPSR_WPV (1 << 0) +#define AT91_MATRIX_WPSR_WPVSRC (0xFFFF << 8) /* Write Protect Violation Source */ + +#endif -- cgit v1.2.3 From cbd5c78e3b46881a6cc8bcea17f74b34301a0eb4 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 10 Mar 2011 19:08:53 +0100 Subject: ARM: at91/at91sam9x5: PMC header file Add at91sam9x5 chips family support in PMC header file: Alternate prescaler location and CSS lenght for PCKR is added. The new Peripheral Control Register management is added. Protection mode register is modified to complete its management. Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/mach-at91/include/mach/at91_pmc.h | 60 ++++++++++++++++++++++++------ 1 file changed, 48 insertions(+), 12 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h index dbdd6ae473d5..f9fdbbe0c53a 100644 --- a/arch/arm/mach-at91/include/mach/at91_pmc.h +++ b/arch/arm/mach-at91/include/mach/at91_pmc.h @@ -45,9 +45,13 @@ #define AT91_PMC_BIASCOUNT (0xf << 28) /* UTMI BIAS Start-up Time */ #define AT91_CKGR_MOR (AT91_PMC + 0x20) /* Main Oscillator Register [not on SAM9RL] */ -#define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */ -#define AT91_PMC_OSCBYPASS (1 << 1) /* Oscillator Bypass [SAM9x] */ -#define AT91_PMC_OSCOUNT (0xff << 8) /* Main Oscillator Start-up Time */ +#define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */ +#define AT91_PMC_OSCBYPASS (1 << 1) /* Oscillator Bypass */ +#define AT91_PMC_MOSCRCEN (1 << 3) /* Main On-Chip RC Oscillator Enable [some SAM9] */ +#define AT91_PMC_OSCOUNT (0xff << 8) /* Main Oscillator Start-up Time */ +#define AT91_PMC_KEY (0x37 << 16) /* MOR Writing Key */ +#define AT91_PMC_MOSCSEL (1 << 24) /* Main Oscillator Selection [some SAM9] */ +#define AT91_PMC_CFDEN (1 << 25) /* Clock Failure Detector Enable [some SAM9] */ #define AT91_CKGR_MCFR (AT91_PMC + 0x24) /* Main Clock Frequency Register */ #define AT91_PMC_MAINF (0xffff << 0) /* Main Clock Frequency */ @@ -72,14 +76,24 @@ #define AT91_PMC_CSS_PLLA (2 << 0) #define AT91_PMC_CSS_PLLB (3 << 0) #define AT91_PMC_CSS_UPLL (3 << 0) /* [some SAM9 only] */ -#define AT91_PMC_PRES (7 << 2) /* Master Clock Prescaler */ -#define AT91_PMC_PRES_1 (0 << 2) -#define AT91_PMC_PRES_2 (1 << 2) -#define AT91_PMC_PRES_4 (2 << 2) -#define AT91_PMC_PRES_8 (3 << 2) -#define AT91_PMC_PRES_16 (4 << 2) -#define AT91_PMC_PRES_32 (5 << 2) -#define AT91_PMC_PRES_64 (6 << 2) +#define PMC_PRES_OFFSET 2 +#define AT91_PMC_PRES (7 << PMC_PRES_OFFSET) /* Master Clock Prescaler */ +#define AT91_PMC_PRES_1 (0 << PMC_PRES_OFFSET) +#define AT91_PMC_PRES_2 (1 << PMC_PRES_OFFSET) +#define AT91_PMC_PRES_4 (2 << PMC_PRES_OFFSET) +#define AT91_PMC_PRES_8 (3 << PMC_PRES_OFFSET) +#define AT91_PMC_PRES_16 (4 << PMC_PRES_OFFSET) +#define AT91_PMC_PRES_32 (5 << PMC_PRES_OFFSET) +#define AT91_PMC_PRES_64 (6 << PMC_PRES_OFFSET) +#define PMC_ALT_PRES_OFFSET 4 +#define AT91_PMC_ALT_PRES (7 << PMC_ALT_PRES_OFFSET) /* Master Clock Prescaler [alternate location] */ +#define AT91_PMC_ALT_PRES_1 (0 << PMC_ALT_PRES_OFFSET) +#define AT91_PMC_ALT_PRES_2 (1 << PMC_ALT_PRES_OFFSET) +#define AT91_PMC_ALT_PRES_4 (2 << PMC_ALT_PRES_OFFSET) +#define AT91_PMC_ALT_PRES_8 (3 << PMC_ALT_PRES_OFFSET) +#define AT91_PMC_ALT_PRES_16 (4 << PMC_ALT_PRES_OFFSET) +#define AT91_PMC_ALT_PRES_32 (5 << PMC_ALT_PRES_OFFSET) +#define AT91_PMC_ALT_PRES_64 (6 << PMC_ALT_PRES_OFFSET) #define AT91_PMC_MDIV (3 << 8) /* Master Clock Division */ #define AT91RM9200_PMC_MDIV_1 (0 << 8) /* [AT91RM9200 only] */ #define AT91RM9200_PMC_MDIV_2 (1 << 8) @@ -103,7 +117,14 @@ #define AT91_PMC_USBS_UPLL (1 << 0) #define AT91_PMC_OHCIUSBDIV (0xF << 8) /* Divider for USB OHCI Clock */ +#define AT91_PMC_SMD (AT91_PMC + 0x3c) /* Soft Modem Clock Register [some SAM9 only] */ +#define AT91_PMC_SMDS (0x1 << 0) /* SMD input clock selection */ +#define AT91_PMC_SMD_DIV (0x1f << 8) /* SMD input clock divider */ +#define AT91_PMC_SMDDIV(n) (((n) << 8) & AT91_PMC_SMD_DIV) + #define AT91_PMC_PCKR(n) (AT91_PMC + 0x40 + ((n) * 4)) /* Programmable Clock 0-N Registers */ +#define AT91_PMC_ALT_PCKR_CSS (0x7 << 0) /* Programmable Clock Source Selection [alternate length] */ +#define AT91_PMC_CSS_MASTER (4 << 0) /* [some SAM9 only] */ #define AT91_PMC_CSSMCK (0x1 << 8) /* CSS or Master Clock Selection */ #define AT91_PMC_CSSMCK_CSS (0 << 8) #define AT91_PMC_CSSMCK_MCK (1 << 8) @@ -120,10 +141,25 @@ #define AT91_PMC_PCK1RDY (1 << 9) /* Programmable Clock 1 */ #define AT91_PMC_PCK2RDY (1 << 10) /* Programmable Clock 2 */ #define AT91_PMC_PCK3RDY (1 << 11) /* Programmable Clock 3 */ +#define AT91_PMC_MOSCSELS (1 << 16) /* Main Oscillator Selection [some SAM9] */ +#define AT91_PMC_MOSCRCS (1 << 17) /* Main On-Chip RC [some SAM9] */ +#define AT91_PMC_CFDEV (1 << 18) /* Clock Failure Detector Event [some SAM9] */ #define AT91_PMC_IMR (AT91_PMC + 0x6c) /* Interrupt Mask Register */ #define AT91_PMC_PROT (AT91_PMC + 0xe4) /* Write Protect Mode Register [some SAM9] */ -#define AT91_PMC_PROTKEY 0x504d4301 /* Activation Code */ +#define AT91_PMC_WPEN (0x1 << 0) /* Write Protect Enable */ +#define AT91_PMC_WPKEY (0xffffff << 8) /* Write Protect Key */ +#define AT91_PMC_PROTKEY (0x504d43 << 8) /* Activation Code */ + +#define AT91_PMC_WPSR (AT91_PMC + 0xe8) /* Write Protect Status Register [some SAM9] */ +#define AT91_PMC_WPVS (0x1 << 0) /* Write Protect Violation Status */ +#define AT91_PMC_WPVSRC (0xffff << 8) /* Write Protect Violation Source */ +#define AT91_PMC_PCR (AT91_PMC + 0x10c) /* Peripheral Control Register [some SAM9] */ +#define AT91_PMC_PCR_PID (0x3f << 0) /* Peripheral ID */ +#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command */ +#define AT91_PMC_PCR_DIV (0x3 << 16) /* Divisor Value */ +#define AT91_PMC_PCRDIV(n) (((n) << 16) & AT91_PMC_PCR_DIV) +#define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */ #endif -- cgit v1.2.3 From 11128726bf9e27e22322151a8018fd57e978e303 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 10 Mar 2011 19:08:54 +0100 Subject: ARM: at91/at91sam9x5: clock management for at91sam9x5 chip family Several changes to PMC have to be managed for adding this support: - alternate prescaler location for both MCKR and PCKR - alternate CSS length for PCKR - added cpu_is_at91sam9x5() to functional switches - manage UTMI bias like sam9g45 chip family Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/mach-at91/clock.c | 83 +++++++++++++++++++++++++++++++++++----------- 1 file changed, 64 insertions(+), 19 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index aa04e22a9da6..a5291e0e7004 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -48,24 +48,37 @@ * Chips have some kind of clocks : group them by functionality */ #define cpu_has_utmi() ( cpu_is_at91sam9rl() \ - || cpu_is_at91sam9g45()) + || cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5()) #define cpu_has_800M_plla() ( cpu_is_at91sam9g20() \ - || cpu_is_at91sam9g45()) + || cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5()) #define cpu_has_300M_plla() (cpu_is_at91sam9g10()) #define cpu_has_pllb() (!(cpu_is_at91sam9rl() \ - || cpu_is_at91sam9g45())) + || cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5())) -#define cpu_has_upll() (cpu_is_at91sam9g45()) +#define cpu_has_upll() (cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5()) /* USB host HS & FS */ #define cpu_has_uhp() (!cpu_is_at91sam9rl()) /* USB device FS only */ #define cpu_has_udpfs() (!(cpu_is_at91sam9rl() \ - || cpu_is_at91sam9g45())) + || cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5())) + +#define cpu_has_plladiv2() (cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5()) + +#define cpu_has_mdiv3() (cpu_is_at91sam9g45() \ + || cpu_is_at91sam9x5()) + +#define cpu_has_alt_prescaler() (cpu_is_at91sam9x5()) static LIST_HEAD(clocks); static DEFINE_SPINLOCK(clk_lock); @@ -138,13 +151,6 @@ static void pmc_uckr_mode(struct clk *clk, int is_on) { unsigned int uckr = at91_sys_read(AT91_CKGR_UCKR); - if (cpu_is_at91sam9g45()) { - if (is_on) - uckr |= AT91_PMC_BIASEN; - else - uckr &= ~AT91_PMC_BIASEN; - } - if (is_on) { is_on = AT91_PMC_LOCKU; at91_sys_write(AT91_CKGR_UCKR, uckr | clk->pmc_mask); @@ -209,11 +215,24 @@ static struct clk __init *at91_css_to_clk(unsigned long css) return &utmi_clk; else if (cpu_has_pllb()) return &pllb; + break; + /* alternate PMC: can use master clock */ + case AT91_PMC_CSS_MASTER: + return &mck; } return NULL; } +static int pmc_prescaler_divider(u32 reg) +{ + if (cpu_has_alt_prescaler()) { + return 1 << ((reg & AT91_PMC_ALT_PRES) >> PMC_ALT_PRES_OFFSET); + } else { + return 1 << ((reg & AT91_PMC_PRES) >> PMC_PRES_OFFSET); + } +} + static void __clk_enable(struct clk *clk) { if (clk->parent) @@ -315,12 +334,22 @@ int clk_set_rate(struct clk *clk, unsigned long rate) { unsigned long flags; unsigned prescale; + unsigned long prescale_offset, css_mask; unsigned long actual; if (!clk_is_programmable(clk)) return -EINVAL; if (clk->users) return -EBUSY; + + if (cpu_has_alt_prescaler()) { + prescale_offset = PMC_ALT_PRES_OFFSET; + css_mask = AT91_PMC_ALT_PCKR_CSS; + } else { + prescale_offset = PMC_PRES_OFFSET; + css_mask = AT91_PMC_CSS; + } + spin_lock_irqsave(&clk_lock, flags); actual = clk->parent->rate_hz; @@ -329,8 +358,8 @@ int clk_set_rate(struct clk *clk, unsigned long rate) u32 pckr; pckr = at91_sys_read(AT91_PMC_PCKR(clk->id)); - pckr &= AT91_PMC_CSS; /* clock selection */ - pckr |= prescale << 2; + pckr &= css_mask; /* keep clock selection */ + pckr |= prescale << prescale_offset; at91_sys_write(AT91_PMC_PCKR(clk->id), pckr); clk->rate_hz = actual; break; @@ -377,11 +406,17 @@ static void __init init_programmable_clock(struct clk *clk) { struct clk *parent; u32 pckr; + unsigned int css_mask; + + if (cpu_has_alt_prescaler()) + css_mask = AT91_PMC_ALT_PCKR_CSS; + else + css_mask = AT91_PMC_CSS; pckr = at91_sys_read(AT91_PMC_PCKR(clk->id)); - parent = at91_css_to_clk(pckr & AT91_PMC_CSS); + parent = at91_css_to_clk(pckr & css_mask); clk->parent = parent; - clk->rate_hz = parent->rate_hz / (1 << ((pckr & AT91_PMC_PRES) >> 2)); + clk->rate_hz = parent->rate_hz / pmc_prescaler_divider(pckr); } #endif /* CONFIG_AT91_PROGRAMMABLE_CLOCKS */ @@ -663,7 +698,7 @@ int __init at91_clock_init(unsigned long main_clock) if (pll_overclock) pr_info("Clocks: PLLA overclocked, %ld MHz\n", plla.rate_hz / 1000000); - if (cpu_is_at91sam9g45()) { + if (cpu_has_plladiv2()) { mckr = at91_sys_read(AT91_PMC_MCKR); plla.rate_hz /= (1 << ((mckr & AT91_PMC_PLLADIV2) >> 12)); /* plla divisor by 2 */ } @@ -685,6 +720,10 @@ int __init at91_clock_init(unsigned long main_clock) * (obtain the USB High Speed 480 MHz when input is 12 MHz) */ utmi_clk.rate_hz = 40 * utmi_clk.parent->rate_hz; + + /* UTMI bias and PLL are managed at the same time */ + if (cpu_has_upll()) + utmi_clk.pmc_mask |= AT91_PMC_BIASEN; } /* @@ -703,7 +742,7 @@ int __init at91_clock_init(unsigned long main_clock) mckr = at91_sys_read(AT91_PMC_MCKR); mck.parent = at91_css_to_clk(mckr & AT91_PMC_CSS); freq = mck.parent->rate_hz; - freq /= (1 << ((mckr & AT91_PMC_PRES) >> 2)); /* prescale */ + freq /= pmc_prescaler_divider(mckr); /* prescale */ if (cpu_is_at91rm9200()) { mck.rate_hz = freq / (1 + ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ } else if (cpu_is_at91sam9g20()) { @@ -711,13 +750,19 @@ int __init at91_clock_init(unsigned long main_clock) freq / ((mckr & AT91_PMC_MDIV) >> 7) : freq; /* mdiv ; (x >> 7) = ((x >> 8) * 2) */ if (mckr & AT91_PMC_PDIV) freq /= 2; /* processor clock division */ - } else if (cpu_is_at91sam9g45()) { + } else if (cpu_has_mdiv3()) { mck.rate_hz = (mckr & AT91_PMC_MDIV) == AT91SAM9_PMC_MDIV_3 ? freq / 3 : freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ } else { mck.rate_hz = freq / (1 << ((mckr & AT91_PMC_MDIV) >> 8)); /* mdiv */ } + if (cpu_has_alt_prescaler()) { + /* Programmable clocks can use MCK */ + mck.type |= CLK_TYPE_PRIMARY; + mck.id = 4; + } + /* Register the PMC's standard clocks */ for (i = 0; i < ARRAY_SIZE(standard_pmc_clocks); i++) at91_clk_add(standard_pmc_clocks[i]); -- cgit v1.2.3 From 9a3ee403df57ba4c8ba6bb5d422690143417b53d Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 23 Jan 2012 16:16:44 +0100 Subject: ARM: at91/at91sam9x5: Configuration and Makefile Kconfig and Makefile entries for SAM9x5 family. Signed-off-by: Nicolas Ferre --- arch/arm/mach-at91/Kconfig | 9 +++++++++ arch/arm/mach-at91/Makefile | 1 + 2 files changed, 10 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 0284e66c47f9..e55cdcbd81fb 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -102,6 +102,15 @@ config ARCH_AT91SAM9G45 select HAVE_AT91_DBGU1 select AT91_SAM9G45_RESET +config ARCH_AT91SAM9X5 + bool "AT91SAM9x5 family" + select CPU_ARM926T + select GENERIC_CLOCKEVENTS + select HAVE_FB_ATMEL + select HAVE_NET_MACB + select HAVE_AT91_DBGU0 + select AT91_SAM9G45_RESET + config ARCH_AT91X40 bool "AT91x40" select ARCH_USES_GETTIMEOFFSET diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index aeb76f1690d9..1b6518518d99 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_ARCH_AT91SAM9263) += at91sam9263.o at91sam926x_time.o at91sam9263_d obj-$(CONFIG_ARCH_AT91SAM9RL) += at91sam9rl.o at91sam926x_time.o at91sam9rl_devices.o sam9_smc.o obj-$(CONFIG_ARCH_AT91SAM9G20) += at91sam9260.o at91sam926x_time.o at91sam9260_devices.o sam9_smc.o obj-$(CONFIG_ARCH_AT91SAM9G45) += at91sam9g45.o at91sam926x_time.o at91sam9g45_devices.o sam9_smc.o +obj-$(CONFIG_ARCH_AT91SAM9X5) += at91sam9x5.o at91sam926x_time.o obj-$(CONFIG_ARCH_AT91X40) += at91x40.o at91x40_time.o # AT91RM9200 board-specific support -- cgit v1.2.3 From 2b9ccf3cc6326aeed1cecb02e4a312dd28a8322b Mon Sep 17 00:00:00 2001 From: Dan Liang Date: Thu, 10 Mar 2011 19:08:55 +0100 Subject: ARM: at91/at91sam9x5: SoC basic support Add at91sam9x5.c SoC file: Define clock resources and some initialization code. Signed-off-by: Dan Liang Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD --- arch/arm/mach-at91/at91sam9x5.c | 373 +++++++++++++++++++++++++++++ arch/arm/mach-at91/board-dt.c | 1 + arch/arm/mach-at91/include/mach/hardware.h | 2 + 3 files changed, 376 insertions(+) create mode 100644 arch/arm/mach-at91/at91sam9x5.c (limited to 'arch') diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c new file mode 100644 index 000000000000..1c3444d2ee0c --- /dev/null +++ b/arch/arm/mach-at91/at91sam9x5.c @@ -0,0 +1,373 @@ +/* + * Chip-specific setup code for the AT91SAM9x5 family + * + * Copyright (C) 2010-2012 Atmel Corporation. + * + * Licensed under GPLv2 or later. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "soc.h" +#include "generic.h" +#include "clock.h" +#include "sam9_smc.h" + +/* -------------------------------------------------------------------- + * Clocks + * -------------------------------------------------------------------- */ + +/* + * The peripheral clocks. + */ +static struct clk pioAB_clk = { + .name = "pioAB_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_PIOAB, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pioCD_clk = { + .name = "pioCD_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_PIOCD, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk smd_clk = { + .name = "smd_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_SMD, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart0_clk = { + .name = "usart0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_USART0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart1_clk = { + .name = "usart1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_USART1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk usart2_clk = { + .name = "usart2_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_USART2, + .type = CLK_TYPE_PERIPHERAL, +}; +/* USART3 clock - Only for sam9g25/sam9x25 */ +static struct clk usart3_clk = { + .name = "usart3_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_USART3, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twi0_clk = { + .name = "twi0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_TWI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twi1_clk = { + .name = "twi1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_TWI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk twi2_clk = { + .name = "twi2_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_TWI2, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc0_clk = { + .name = "mci0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_MCI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi0_clk = { + .name = "spi0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_SPI0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk spi1_clk = { + .name = "spi1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_SPI1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk uart0_clk = { + .name = "uart0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_UART0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk uart1_clk = { + .name = "uart1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_UART1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk tcb0_clk = { + .name = "tcb0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_TCB, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk pwm_clk = { + .name = "pwm_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_PWM, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk adc_clk = { + .name = "adc_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_ADC, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk dma0_clk = { + .name = "dma0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_DMA0, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk dma1_clk = { + .name = "dma1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_DMA1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk uhphs_clk = { + .name = "uhphs_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_UHPHS, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk udphs_clk = { + .name = "udphs_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_UDPHS, + .type = CLK_TYPE_PERIPHERAL, +}; +/* emac0 clock - Only for sam9g25/sam9x25/sam9g35/sam9x35 */ +static struct clk macb0_clk = { + .name = "pclk", + .pmc_mask = 1 << AT91SAM9X5_ID_EMAC0, + .type = CLK_TYPE_PERIPHERAL, +}; +/* lcd clock - Only for sam9g15/sam9g35/sam9x35 */ +static struct clk lcdc_clk = { + .name = "lcdc_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_LCDC, + .type = CLK_TYPE_PERIPHERAL, +}; +/* isi clock - Only for sam9g25 */ +static struct clk isi_clk = { + .name = "isi_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_ISI, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk mmc1_clk = { + .name = "mci1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_MCI1, + .type = CLK_TYPE_PERIPHERAL, +}; +/* emac1 clock - Only for sam9x25 */ +static struct clk macb1_clk = { + .name = "pclk", + .pmc_mask = 1 << AT91SAM9X5_ID_EMAC1, + .type = CLK_TYPE_PERIPHERAL, +}; +static struct clk ssc_clk = { + .name = "ssc_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_SSC, + .type = CLK_TYPE_PERIPHERAL, +}; +/* can0 clock - Only for sam9x35 */ +static struct clk can0_clk = { + .name = "can0_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_CAN0, + .type = CLK_TYPE_PERIPHERAL, +}; +/* can1 clock - Only for sam9x35 */ +static struct clk can1_clk = { + .name = "can1_clk", + .pmc_mask = 1 << AT91SAM9X5_ID_CAN1, + .type = CLK_TYPE_PERIPHERAL, +}; + +static struct clk *periph_clocks[] __initdata = { + &pioAB_clk, + &pioCD_clk, + &smd_clk, + &usart0_clk, + &usart1_clk, + &usart2_clk, + &twi0_clk, + &twi1_clk, + &twi2_clk, + &mmc0_clk, + &spi0_clk, + &spi1_clk, + &uart0_clk, + &uart1_clk, + &tcb0_clk, + &pwm_clk, + &adc_clk, + &dma0_clk, + &dma1_clk, + &uhphs_clk, + &udphs_clk, + &mmc1_clk, + &ssc_clk, + // irq0 +}; + +static struct clk_lookup periph_clocks_lookups[] = { + /* lookup table for DT entries */ + CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck), + CLKDEV_CON_DEV_ID("usart", "f801c000.serial", &usart0_clk), + CLKDEV_CON_DEV_ID("usart", "f8020000.serial", &usart1_clk), + CLKDEV_CON_DEV_ID("usart", "f8024000.serial", &usart2_clk), + CLKDEV_CON_DEV_ID("usart", "f8028000.serial", &usart3_clk), + CLKDEV_CON_DEV_ID("t0_clk", "f8008000.timer", &tcb0_clk), + CLKDEV_CON_DEV_ID("t0_clk", "f800c000.timer", &tcb0_clk), + CLKDEV_CON_ID("pioA", &pioAB_clk), + CLKDEV_CON_ID("pioB", &pioAB_clk), + CLKDEV_CON_ID("pioC", &pioCD_clk), + CLKDEV_CON_ID("pioD", &pioCD_clk), + /* additional fake clock for macb_hclk */ + CLKDEV_CON_DEV_ID("hclk", "f802c000.ethernet", &macb0_clk), + CLKDEV_CON_DEV_ID("hclk", "f8030000.ethernet", &macb1_clk), +}; + +/* + * The two programmable clocks. + * You must configure pin multiplexing to bring these signals out. + */ +static struct clk pck0 = { + .name = "pck0", + .pmc_mask = AT91_PMC_PCK0, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 0, +}; +static struct clk pck1 = { + .name = "pck1", + .pmc_mask = AT91_PMC_PCK1, + .type = CLK_TYPE_PROGRAMMABLE, + .id = 1, +}; + +static void __init at91sam9x5_register_clocks(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(periph_clocks); i++) + clk_register(periph_clocks[i]); + + clkdev_add_table(periph_clocks_lookups, + ARRAY_SIZE(periph_clocks_lookups)); + + if (cpu_is_at91sam9g25() + || cpu_is_at91sam9x25()) + clk_register(&usart3_clk); + + if (cpu_is_at91sam9g25() + || cpu_is_at91sam9x25() + || cpu_is_at91sam9g35() + || cpu_is_at91sam9x35()) + clk_register(&macb0_clk); + + if (cpu_is_at91sam9g15() + || cpu_is_at91sam9g35() + || cpu_is_at91sam9x35()) + clk_register(&lcdc_clk); + + if (cpu_is_at91sam9g25()) + clk_register(&isi_clk); + + if (cpu_is_at91sam9x25()) + clk_register(&macb1_clk); + + if (cpu_is_at91sam9x25() + || cpu_is_at91sam9x35()) { + clk_register(&can0_clk); + clk_register(&can1_clk); + } + + clk_register(&pck0); + clk_register(&pck1); +} + +/* -------------------------------------------------------------------- + * AT91SAM9x5 processor initialization + * -------------------------------------------------------------------- */ + +static void __init at91sam9x5_map_io(void) +{ + at91_init_sram(0, AT91SAM9X5_SRAM_BASE, AT91SAM9X5_SRAM_SIZE); +} + +static void __init at91sam9x5_ioremap_registers(void) +{ + if (of_at91sam926x_pit_init() < 0) + panic("Impossible to find PIT\n"); +} + +void __init at91sam9x5_initialize(void) +{ + arm_pm_restart = at91sam9g45_restart; + at91_extern_irq = (1 << AT91SAM9X5_ID_IRQ0); + + /* Register GPIO subsystem (using DT) */ + at91_gpio_init(NULL, 0); +} + +/* -------------------------------------------------------------------- + * AT91SAM9x5 devices (temporary before modification of code) + * -------------------------------------------------------------------- */ +void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} +void __init at91_set_serial_console(unsigned portnr) {} +struct platform_device *atmel_default_console_device = NULL; + +void __init at91_add_device_nand(struct atmel_nand_data *data) {} + +/* -------------------------------------------------------------------- + * Interrupt initialization + * -------------------------------------------------------------------- */ +/* + * The default interrupt priority levels (0 = lowest, 7 = highest). + */ +static unsigned int at91sam9x5_default_irq_priority[NR_AIC_IRQS] __initdata = { + 7, /* Advanced Interrupt Controller (FIQ) */ + 7, /* System Peripherals */ + 1, /* Parallel IO Controller A and B */ + 1, /* Parallel IO Controller C and D */ + 4, /* Soft Modem */ + 5, /* USART 0 */ + 5, /* USART 1 */ + 5, /* USART 2 */ + 5, /* USART 3 */ + 6, /* Two-Wire Interface 0 */ + 6, /* Two-Wire Interface 1 */ + 6, /* Two-Wire Interface 2 */ + 0, /* Multimedia Card Interface 0 */ + 5, /* Serial Peripheral Interface 0 */ + 5, /* Serial Peripheral Interface 1 */ + 5, /* UART 0 */ + 5, /* UART 1 */ + 0, /* Timer Counter 0, 1, 2, 3, 4 and 5 */ + 0, /* Pulse Width Modulation Controller */ + 0, /* ADC Controller */ + 0, /* DMA Controller 0 */ + 0, /* DMA Controller 1 */ + 2, /* USB Host High Speed port */ + 2, /* USB Device High speed port */ + 3, /* Ethernet MAC 0 */ + 3, /* LDC Controller or Image Sensor Interface */ + 0, /* Multimedia Card Interface 1 */ + 3, /* Ethernet MAC 1 */ + 4, /* Synchronous Serial Interface */ + 4, /* CAN Controller 0 */ + 4, /* CAN Controller 1 */ + 0, /* Advanced Interrupt Controller (IRQ0) */ +}; + +struct at91_init_soc __initdata at91sam9x5_soc = { + .map_io = at91sam9x5_map_io, + .default_irq_priority = at91sam9x5_default_irq_priority, + .ioremap_registers = at91sam9x5_ioremap_registers, + .register_clocks = at91sam9x5_register_clocks, + .init = at91sam9x5_initialize, +}; diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c index bb6b434ec0c1..05793156d178 100644 --- a/arch/arm/mach-at91/board-dt.c +++ b/arch/arm/mach-at91/board-dt.c @@ -109,6 +109,7 @@ static void __init at91_dt_device_init(void) static const char *at91_dt_board_compat[] __initdata = { "atmel,at91sam9m10g45ek", + "atmel,at91sam9x5ek", "calao,usb-a9g20", NULL }; diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h index c213f28628c0..fd7dce4f7378 100644 --- a/arch/arm/mach-at91/include/mach/hardware.h +++ b/arch/arm/mach-at91/include/mach/hardware.h @@ -34,6 +34,8 @@ #include #elif defined(CONFIG_ARCH_AT91SAM9G45) #include +#elif defined(CONFIG_ARCH_AT91SAM9X5) +#include #elif defined(CONFIG_ARCH_AT91X40) #include #else -- cgit v1.2.3 From 467f1cf504fbe8c50018c9b45ff465b379bc81f8 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Thu, 26 Jan 2012 11:59:20 +0100 Subject: ARM: at91/at91sam9x5: Device tree definition files Device tree include file for the AT91SAM9x5 SoC family. An additional .dtsi file is created to describe the generic SAM9x5 CPU Module (CM). Device tree source files for each Evaluation Kit that are using the generic CPU Module and the carrier board. The selection of available peripherals is done in this .dts file. Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91sam9g25ek.dts | 37 ++++++++ arch/arm/boot/dts/at91sam9x5.dtsi | 172 ++++++++++++++++++++++++++++++++++++ arch/arm/boot/dts/at91sam9x5cm.dtsi | 14 +++ 3 files changed, 223 insertions(+) create mode 100644 arch/arm/boot/dts/at91sam9g25ek.dts create mode 100644 arch/arm/boot/dts/at91sam9x5.dtsi create mode 100644 arch/arm/boot/dts/at91sam9x5cm.dtsi (limited to 'arch') diff --git a/arch/arm/boot/dts/at91sam9g25ek.dts b/arch/arm/boot/dts/at91sam9g25ek.dts new file mode 100644 index 000000000000..e64eb932083b --- /dev/null +++ b/arch/arm/boot/dts/at91sam9g25ek.dts @@ -0,0 +1,37 @@ +/* + * at91sam9g25ek.dts - Device Tree file for AT91SAM9G25-EK board + * + * Copyright (C) 2012 Atmel, + * 2012 Nicolas Ferre + * + * Licensed under GPLv2 or later. + */ +/dts-v1/; +/include/ "at91sam9x5.dtsi" +/include/ "at91sam9x5cm.dtsi" + +/ { + model = "Atmel AT91SAM9G25-EK"; + compatible = "atmel,at91sam9g25ek", "atmel,at91sam9x5ek", "atmel,at91sam9x5", "atmel,at91sam9"; + + chosen { + bootargs = "128M console=ttyS0,115200 mtdparts=atmel_nand:8M(bootstrap/uboot/kernel)ro,-(rootfs) root=/dev/mtdblock1 rw rootfstype=ubifs ubi.mtd=1 root=ubi0:rootfs"; + }; + + ahb { + apb { + dbgu: serial@fffff200 { + status = "okay"; + }; + + usart0: serial@f801c000 { + status = "okay"; + }; + + macb0: ethernet@f802c000 { + phy-mode = "rmii"; + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi new file mode 100644 index 000000000000..e91391f50730 --- /dev/null +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -0,0 +1,172 @@ +/* + * at91sam9x5.dtsi - Device Tree Include file for AT91SAM9x5 family SoC + * applies to AT91SAM9G15, AT91SAM9G25, AT91SAM9G35, + * AT91SAM9X25, AT91SAM9X35 SoC + * + * Copyright (C) 2012 Atmel, + * 2012 Nicolas Ferre + * + * Licensed under GPLv2 or later. + */ + +/include/ "skeleton.dtsi" + +/ { + model = "Atmel AT91SAM9x5 family SoC"; + compatible = "atmel,at91sam9x5"; + interrupt-parent = <&aic>; + + aliases { + serial0 = &dbgu; + serial1 = &usart0; + serial2 = &usart1; + serial3 = &usart2; + gpio0 = &pioA; + gpio1 = &pioB; + gpio2 = &pioC; + gpio3 = &pioD; + tcb0 = &tcb0; + tcb1 = &tcb1; + }; + cpus { + cpu@0 { + compatible = "arm,arm926ejs"; + }; + }; + + memory@20000000 { + reg = <0x20000000 0x10000000>; + }; + + ahb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + apb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + aic: interrupt-controller@fffff000 { + #interrupt-cells = <2>; + compatible = "atmel,at91rm9200-aic"; + interrupt-controller; + interrupt-parent; + reg = <0xfffff000 0x200>; + }; + + pit: timer@fffffe30 { + compatible = "atmel,at91sam9260-pit"; + reg = <0xfffffe30 0xf>; + interrupts = <1 4>; + }; + + tcb0: timer@f8008000 { + compatible = "atmel,at91sam9x5-tcb"; + reg = <0xf8008000 0x100>; + interrupts = <17 4>; + }; + + tcb1: timer@f800c000 { + compatible = "atmel,at91sam9x5-tcb"; + reg = <0xf800c000 0x100>; + interrupts = <17 4>; + }; + + dma0: dma-controller@ffffec00 { + compatible = "atmel,at91sam9g45-dma"; + reg = <0xffffec00 0x200>; + interrupts = <20 4>; + }; + + dma1: dma-controller@ffffee00 { + compatible = "atmel,at91sam9g45-dma"; + reg = <0xffffee00 0x200>; + interrupts = <21 4>; + }; + + pioA: gpio@fffff400 { + compatible = "atmel,at91rm9200-gpio"; + reg = <0xfffff400 0x100>; + interrupts = <2 4>; + #gpio-cells = <2>; + gpio-controller; + }; + + pioB: gpio@fffff600 { + compatible = "atmel,at91rm9200-gpio"; + reg = <0xfffff600 0x100>; + interrupts = <2 4>; + #gpio-cells = <2>; + gpio-controller; + }; + + pioC: gpio@fffff800 { + compatible = "atmel,at91rm9200-gpio"; + reg = <0xfffff800 0x100>; + interrupts = <3 4>; + #gpio-cells = <2>; + gpio-controller; + }; + + pioD: gpio@fffffa00 { + compatible = "atmel,at91rm9200-gpio"; + reg = <0xfffffa00 0x100>; + interrupts = <3 4>; + #gpio-cells = <2>; + gpio-controller; + }; + + dbgu: serial@fffff200 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffff200 0x200>; + interrupts = <1 4>; + status = "disabled"; + }; + + usart0: serial@f801c000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xf801c000 0x200>; + interrupts = <5 4>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart1: serial@f8020000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xf8020000 0x200>; + interrupts = <6 4>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart2: serial@f8024000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xf8024000 0x200>; + interrupts = <7 4>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + macb0: ethernet@f802c000 { + compatible = "cdns,at32ap7000-macb", "cdns,macb"; + reg = <0xf802c000 0x100>; + interrupts = <24 4>; + status = "disabled"; + }; + + macb1: ethernet@f8030000 { + compatible = "cdns,at32ap7000-macb", "cdns,macb"; + reg = <0xf8030000 0x100>; + interrupts = <27 4>; + status = "disabled"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/at91sam9x5cm.dtsi b/arch/arm/boot/dts/at91sam9x5cm.dtsi new file mode 100644 index 000000000000..4ab5a77f4afc --- /dev/null +++ b/arch/arm/boot/dts/at91sam9x5cm.dtsi @@ -0,0 +1,14 @@ +/* + * at91sam9x5cm.dtsi - Device Tree Include file for AT91SAM9x5 CPU Module + * + * Copyright (C) 2012 Atmel, + * 2012 Nicolas Ferre + * + * Licensed under GPLv2 or later. + */ + +/ { + memory@20000000 { + reg = <0x20000000 0x8000000>; + }; +}; -- cgit v1.2.3 From caa4868ee07029e60450909960652b96a50ebfbd Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Thu, 5 Jan 2012 03:31:45 +0000 Subject: ARM: tegra: add support for tegra30 interrupts Tegra30 has 1 extra legacy interrupt controller. Use the GIC ITLinesNumber field to determine how many interrupt controllers we have and initialize appropriately. Also make room for the extra tegra30 interrupts by moving the GPIO IRQ base. This shouldn't affect existing code as it determines the correct IRQ number for GPIOs using TEGRA_GPIO_TO_IRQ(). Signed-off-by: Peter De Schrijver Acked-by: Stephen Warren Tested-by: Stephen Warren Acked-by: Colin Cross Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/include/mach/iomap.h | 3 +++ arch/arm/mach-tegra/include/mach/irqs.h | 7 ++++--- arch/arm/mach-tegra/irq.c | 20 ++++++++++++++++---- 3 files changed, 23 insertions(+), 7 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-tegra/include/mach/iomap.h b/arch/arm/mach-tegra/include/mach/iomap.h index 19dec3ac0854..67644c905d8e 100644 --- a/arch/arm/mach-tegra/include/mach/iomap.h +++ b/arch/arm/mach-tegra/include/mach/iomap.h @@ -74,6 +74,9 @@ #define TEGRA_QUATERNARY_ICTLR_BASE 0x60004300 #define TEGRA_QUATERNARY_ICTLR_SIZE SZ_64 +#define TEGRA_QUINARY_ICTLR_BASE 0x60004400 +#define TEGRA_QUINARY_ICTLR_SIZE SZ_64 + #define TEGRA_TMR1_BASE 0x60005000 #define TEGRA_TMR1_SIZE SZ_8 diff --git a/arch/arm/mach-tegra/include/mach/irqs.h b/arch/arm/mach-tegra/include/mach/irqs.h index a2146cd6867d..aad1a2c1d714 100644 --- a/arch/arm/mach-tegra/include/mach/irqs.h +++ b/arch/arm/mach-tegra/include/mach/irqs.h @@ -165,11 +165,12 @@ #define INT_QUAD_RES_30 (INT_QUAD_BASE + 30) #define INT_QUAD_RES_31 (INT_QUAD_BASE + 31) -#define INT_MAIN_NR (INT_QUAD_BASE + 32 - INT_PRI_BASE) - +/* Tegra30 has 5 banks of 32 IRQs */ +#define INT_MAIN_NR (32 * 5) #define INT_GPIO_BASE (INT_PRI_BASE + INT_MAIN_NR) -#define INT_GPIO_NR (28 * 8) +/* Tegra30 has 8 banks of 32 GPIOs */ +#define INT_GPIO_NR (32 * 8) #define TEGRA_NR_IRQS (INT_GPIO_BASE + INT_GPIO_NR) diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c index 4e1afcd54fae..2f5bd2db8e1f 100644 --- a/arch/arm/mach-tegra/irq.c +++ b/arch/arm/mach-tegra/irq.c @@ -44,14 +44,16 @@ #define ICTLR_COP_IER_CLR 0x38 #define ICTLR_COP_IEP_CLASS 0x3c -#define NUM_ICTLRS 4 #define FIRST_LEGACY_IRQ 32 +static int num_ictlrs; + static void __iomem *ictlr_reg_base[] = { IO_ADDRESS(TEGRA_PRIMARY_ICTLR_BASE), IO_ADDRESS(TEGRA_SECONDARY_ICTLR_BASE), IO_ADDRESS(TEGRA_TERTIARY_ICTLR_BASE), IO_ADDRESS(TEGRA_QUATERNARY_ICTLR_BASE), + IO_ADDRESS(TEGRA_QUINARY_ICTLR_BASE), }; static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg) @@ -60,7 +62,7 @@ static inline void tegra_irq_write_mask(unsigned int irq, unsigned long reg) u32 mask; BUG_ON(irq < FIRST_LEGACY_IRQ || - irq >= FIRST_LEGACY_IRQ + NUM_ICTLRS * 32); + irq >= FIRST_LEGACY_IRQ + num_ictlrs * 32); base = ictlr_reg_base[(irq - FIRST_LEGACY_IRQ) / 32]; mask = BIT((irq - FIRST_LEGACY_IRQ) % 32); @@ -113,8 +115,18 @@ static int tegra_retrigger(struct irq_data *d) void __init tegra_init_irq(void) { int i; + void __iomem *distbase; + + distbase = IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE); + num_ictlrs = readl_relaxed(distbase + GIC_DIST_CTR) & 0x1f; + + if (num_ictlrs > ARRAY_SIZE(ictlr_reg_base)) { + WARN(1, "Too many (%d) interrupt controllers found. Maximum is %d.", + num_ictlrs, ARRAY_SIZE(ictlr_reg_base)); + num_ictlrs = ARRAY_SIZE(ictlr_reg_base); + } - for (i = 0; i < NUM_ICTLRS; i++) { + for (i = 0; i < num_ictlrs; i++) { void __iomem *ictlr = ictlr_reg_base[i]; writel(~0, ictlr + ICTLR_CPU_IER_CLR); writel(0, ictlr + ICTLR_CPU_IEP_CLASS); @@ -131,6 +143,6 @@ void __init tegra_init_irq(void) * initialized elsewhere under DT. */ if (!of_have_populated_dt()) - gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE), + gic_init(0, 29, distbase, IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100)); } -- cgit v1.2.3 From 4fccf75ba3bee0bb3be7828caa03625d4ac100a2 Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Mon, 9 Jan 2012 05:35:11 +0000 Subject: ARM: tegra: add support for new clock framework features Add support for new clock framework features implemented in tegra30. Signed-off-by: Peter De Schrijver Tested-by: Stephen Warren Acked-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/clock.c | 22 ++++++++++++++++++++++ arch/arm/mach-tegra/clock.h | 14 ++++++++++++++ arch/arm/mach-tegra/include/mach/clk.h | 10 ++++++++++ 3 files changed, 46 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c index 8337068a4abe..8dad8d18cb49 100644 --- a/arch/arm/mach-tegra/clock.c +++ b/arch/arm/mach-tegra/clock.c @@ -399,6 +399,28 @@ void tegra_periph_reset_assert(struct clk *c) } EXPORT_SYMBOL(tegra_periph_reset_assert); +/* Several extended clock configuration bits (e.g., clock routing, clock + * phase control) are included in PLL and peripheral clock source + * registers. */ +int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +{ + int ret = 0; + unsigned long flags; + + spin_lock_irqsave(&c->spinlock, flags); + + if (!c->ops || !c->ops->clk_cfg_ex) { + ret = -ENOSYS; + goto out; + } + ret = c->ops->clk_cfg_ex(c, p, setting); + +out: + spin_unlock_irqrestore(&c->spinlock, flags); + + return ret; +} + #ifdef CONFIG_DEBUG_FS static int __clk_lock_all_spinlocks(void) diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h index 5c44106616c5..18f8b857361d 100644 --- a/arch/arm/mach-tegra/clock.h +++ b/arch/arm/mach-tegra/clock.h @@ -24,6 +24,8 @@ #include #include +#include + #define DIV_BUS (1 << 0) #define DIV_U71 (1 << 1) #define DIV_U71_FIXED (1 << 2) @@ -39,7 +41,16 @@ #define PERIPH_MANUAL_RESET (1 << 12) #define PLL_ALT_MISC_REG (1 << 13) #define PLLU (1 << 14) +#define PLLX (1 << 15) +#define MUX_PWM (1 << 16) +#define MUX8 (1 << 17) +#define DIV_U71_UART (1 << 18) +#define MUX_CLK_OUT (1 << 19) +#define PLLM (1 << 20) +#define DIV_U71_INT (1 << 21) +#define DIV_U71_IDLE (1 << 22) #define ENABLE_ON_INIT (1 << 28) +#define PERIPH_ON_APB (1 << 29) struct clk; @@ -65,6 +76,8 @@ struct clk_ops { int (*set_rate)(struct clk *, unsigned long); long (*round_rate)(struct clk *, unsigned long); void (*reset)(struct clk *, bool); + int (*clk_cfg_ex)(struct clk *, + enum tegra_clk_ex_param, u32); }; enum clk_state { @@ -114,6 +127,7 @@ struct clk { unsigned long vco_max; const struct clk_pll_freq_table *freq_table; int lock_delay; + unsigned long fixed_rate; } pll; struct { u32 sel; diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h index fc3ecb66de08..d97e403303a0 100644 --- a/arch/arm/mach-tegra/include/mach/clk.h +++ b/arch/arm/mach-tegra/include/mach/clk.h @@ -22,10 +22,20 @@ struct clk; +enum tegra_clk_ex_param { + TEGRA_CLK_VI_INP_SEL, + TEGRA_CLK_DTV_INVERT, + TEGRA_CLK_NAND_PAD_DIV2_ENB, + TEGRA_CLK_PLLD_CSI_OUT_ENB, + TEGRA_CLK_PLLD_DSI_OUT_ENB, + TEGRA_CLK_PLLD_MIPI_MUX_SEL, +}; + void tegra_periph_reset_deassert(struct clk *c); void tegra_periph_reset_assert(struct clk *c); unsigned long clk_get_rate_all_locked(struct clk *c); void tegra2_sdmmc_tap_delay(struct clk *c, int delay); +int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting); #endif -- cgit v1.2.3 From d9cc6f76b62b065147f8dcb92e6374edbe2c3bf0 Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Mon, 9 Jan 2012 05:35:12 +0000 Subject: ARM: tegra: implement basic tegra30 clock framework Add basic tegra30 clock framework. Not all clocks are supported yet. Mainly clocks requiring voltage scaling are not yet implemented in this version. Based on work by Alex Frid and Scott Williams . Signed-off-by: Peter De Schrijver Tested-by: Stephen Warren Acked-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/tegra30_clocks.c | 3099 ++++++++++++++++++++++++++++++++++ 1 file changed, 3099 insertions(+) create mode 100644 arch/arm/mach-tegra/tegra30_clocks.c (limited to 'arch') diff --git a/arch/arm/mach-tegra/tegra30_clocks.c b/arch/arm/mach-tegra/tegra30_clocks.c new file mode 100644 index 000000000000..6d08b53f92d2 --- /dev/null +++ b/arch/arm/mach-tegra/tegra30_clocks.c @@ -0,0 +1,3099 @@ +/* + * arch/arm/mach-tegra/tegra30_clocks.c + * + * Copyright (c) 2010-2011 NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include + +#include "clock.h" +#include "fuse.h" + +#define USE_PLL_LOCK_BITS 0 + +#define RST_DEVICES_L 0x004 +#define RST_DEVICES_H 0x008 +#define RST_DEVICES_U 0x00C +#define RST_DEVICES_V 0x358 +#define RST_DEVICES_W 0x35C +#define RST_DEVICES_SET_L 0x300 +#define RST_DEVICES_CLR_L 0x304 +#define RST_DEVICES_SET_V 0x430 +#define RST_DEVICES_CLR_V 0x434 +#define RST_DEVICES_NUM 5 + +#define CLK_OUT_ENB_L 0x010 +#define CLK_OUT_ENB_H 0x014 +#define CLK_OUT_ENB_U 0x018 +#define CLK_OUT_ENB_V 0x360 +#define CLK_OUT_ENB_W 0x364 +#define CLK_OUT_ENB_SET_L 0x320 +#define CLK_OUT_ENB_CLR_L 0x324 +#define CLK_OUT_ENB_SET_V 0x440 +#define CLK_OUT_ENB_CLR_V 0x444 +#define CLK_OUT_ENB_NUM 5 + +#define RST_DEVICES_V_SWR_CPULP_RST_DIS (0x1 << 1) +#define CLK_OUT_ENB_V_CLK_ENB_CPULP_EN (0x1 << 1) + +#define PERIPH_CLK_TO_BIT(c) (1 << (c->u.periph.clk_num % 32)) +#define PERIPH_CLK_TO_RST_REG(c) \ + periph_clk_to_reg((c), RST_DEVICES_L, RST_DEVICES_V, 4) +#define PERIPH_CLK_TO_RST_SET_REG(c) \ + periph_clk_to_reg((c), RST_DEVICES_SET_L, RST_DEVICES_SET_V, 8) +#define PERIPH_CLK_TO_RST_CLR_REG(c) \ + periph_clk_to_reg((c), RST_DEVICES_CLR_L, RST_DEVICES_CLR_V, 8) + +#define PERIPH_CLK_TO_ENB_REG(c) \ + periph_clk_to_reg((c), CLK_OUT_ENB_L, CLK_OUT_ENB_V, 4) +#define PERIPH_CLK_TO_ENB_SET_REG(c) \ + periph_clk_to_reg((c), CLK_OUT_ENB_SET_L, CLK_OUT_ENB_SET_V, 8) +#define PERIPH_CLK_TO_ENB_CLR_REG(c) \ + periph_clk_to_reg((c), CLK_OUT_ENB_CLR_L, CLK_OUT_ENB_CLR_V, 8) + +#define CLK_MASK_ARM 0x44 +#define MISC_CLK_ENB 0x48 + +#define OSC_CTRL 0x50 +#define OSC_CTRL_OSC_FREQ_MASK (0xF<<28) +#define OSC_CTRL_OSC_FREQ_13MHZ (0x0<<28) +#define OSC_CTRL_OSC_FREQ_19_2MHZ (0x4<<28) +#define OSC_CTRL_OSC_FREQ_12MHZ (0x8<<28) +#define OSC_CTRL_OSC_FREQ_26MHZ (0xC<<28) +#define OSC_CTRL_OSC_FREQ_16_8MHZ (0x1<<28) +#define OSC_CTRL_OSC_FREQ_38_4MHZ (0x5<<28) +#define OSC_CTRL_OSC_FREQ_48MHZ (0x9<<28) +#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) + +#define OSC_CTRL_PLL_REF_DIV_MASK (3<<26) +#define OSC_CTRL_PLL_REF_DIV_1 (0<<26) +#define OSC_CTRL_PLL_REF_DIV_2 (1<<26) +#define OSC_CTRL_PLL_REF_DIV_4 (2<<26) + +#define OSC_FREQ_DET 0x58 +#define OSC_FREQ_DET_TRIG (1<<31) + +#define OSC_FREQ_DET_STATUS 0x5C +#define OSC_FREQ_DET_BUSY (1<<31) +#define OSC_FREQ_DET_CNT_MASK 0xFFFF + +#define PERIPH_CLK_SOURCE_I2S1 0x100 +#define PERIPH_CLK_SOURCE_EMC 0x19c +#define PERIPH_CLK_SOURCE_OSC 0x1fc +#define PERIPH_CLK_SOURCE_NUM1 \ + ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4) + +#define PERIPH_CLK_SOURCE_G3D2 0x3b0 +#define PERIPH_CLK_SOURCE_SE 0x42c +#define PERIPH_CLK_SOURCE_NUM2 \ + ((PERIPH_CLK_SOURCE_SE - PERIPH_CLK_SOURCE_G3D2) / 4 + 1) + +#define AUDIO_DLY_CLK 0x49c +#define AUDIO_SYNC_CLK_SPDIF 0x4b4 +#define PERIPH_CLK_SOURCE_NUM3 \ + ((AUDIO_SYNC_CLK_SPDIF - AUDIO_DLY_CLK) / 4 + 1) + +#define PERIPH_CLK_SOURCE_NUM (PERIPH_CLK_SOURCE_NUM1 + \ + PERIPH_CLK_SOURCE_NUM2 + \ + PERIPH_CLK_SOURCE_NUM3) + +#define CPU_SOFTRST_CTRL 0x380 + +#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF +#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF +#define PERIPH_CLK_SOURCE_DIV_SHIFT 0 +#define PERIPH_CLK_SOURCE_DIVIDLE_SHIFT 8 +#define PERIPH_CLK_SOURCE_DIVIDLE_VAL 50 +#define PERIPH_CLK_UART_DIV_ENB (1<<24) +#define PERIPH_CLK_VI_SEL_EX_SHIFT 24 +#define PERIPH_CLK_VI_SEL_EX_MASK (0x3<reg_shift - 24) * 4) + +#define PLL_BASE 0x0 +#define PLL_BASE_BYPASS (1<<31) +#define PLL_BASE_ENABLE (1<<30) +#define PLL_BASE_REF_ENABLE (1<<29) +#define PLL_BASE_OVERRIDE (1<<28) +#define PLL_BASE_LOCK (1<<27) +#define PLL_BASE_DIVP_MASK (0x7<<20) +#define PLL_BASE_DIVP_SHIFT 20 +#define PLL_BASE_DIVN_MASK (0x3FF<<8) +#define PLL_BASE_DIVN_SHIFT 8 +#define PLL_BASE_DIVM_MASK (0x1F) +#define PLL_BASE_DIVM_SHIFT 0 + +#define PLL_OUT_RATIO_MASK (0xFF<<8) +#define PLL_OUT_RATIO_SHIFT 8 +#define PLL_OUT_OVERRIDE (1<<2) +#define PLL_OUT_CLKEN (1<<1) +#define PLL_OUT_RESET_DISABLE (1<<0) + +#define PLL_MISC(c) \ + (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc) +#define PLL_MISC_LOCK_ENABLE(c) \ + (((c)->flags & (PLLU | PLLD)) ? (1<<22) : (1<<18)) + +#define PLL_MISC_DCCON_SHIFT 20 +#define PLL_MISC_CPCON_SHIFT 8 +#define PLL_MISC_CPCON_MASK (0xF<parent) + n-1) / n); +} + +static inline u32 periph_clk_to_reg( + struct clk *c, u32 reg_L, u32 reg_V, int offs) +{ + u32 reg = c->u.periph.clk_num / 32; + BUG_ON(reg >= RST_DEVICES_NUM); + if (reg < 3) + reg = reg_L + (reg * offs); + else + reg = reg_V + ((reg - 3) * offs); + return reg; +} + +static unsigned long clk_measure_input_freq(void) +{ + u32 clock_autodetect; + clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET); + do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY); + clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS); + if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) { + return 12000000; + } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) { + return 13000000; + } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) { + return 19200000; + } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) { + return 26000000; + } else if (clock_autodetect >= 1025 - 3 && clock_autodetect <= 1025 + 3) { + return 16800000; + } else if (clock_autodetect >= 2344 - 3 && clock_autodetect <= 2344 + 3) { + return 38400000; + } else if (clock_autodetect >= 2928 - 3 && clock_autodetect <= 2928 + 3) { + return 48000000; + } else { + pr_err("%s: Unexpected clock autodetect value %d", __func__, + clock_autodetect); + BUG(); + return 0; + } +} + +static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate, + u32 flags, u32 round_mode) +{ + s64 divider_u71 = parent_rate; + if (!rate) + return -EINVAL; + + if (!(flags & DIV_U71_INT)) + divider_u71 *= 2; + if (round_mode == ROUND_DIVIDER_UP) + divider_u71 += rate - 1; + do_div(divider_u71, rate); + if (flags & DIV_U71_INT) + divider_u71 *= 2; + + if (divider_u71 - 2 < 0) + return 0; + + if (divider_u71 - 2 > 255) + return -EINVAL; + + return divider_u71 - 2; +} + +static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate) +{ + s64 divider_u16; + + divider_u16 = parent_rate; + if (!rate) + return -EINVAL; + divider_u16 += rate - 1; + do_div(divider_u16, rate); + + if (divider_u16 - 1 < 0) + return 0; + + if (divider_u16 - 1 > 0xFFFF) + return -EINVAL; + + return divider_u16 - 1; +} + +/* clk_m functions */ +static unsigned long tegra30_clk_m_autodetect_rate(struct clk *c) +{ + u32 osc_ctrl = clk_readl(OSC_CTRL); + u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK; + u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK; + + c->rate = clk_measure_input_freq(); + switch (c->rate) { + case 12000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); + break; + case 13000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); + break; + case 19200000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); + break; + case 26000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); + break; + case 16800000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_16_8MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); + break; + case 38400000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_38_4MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_2); + break; + case 48000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_48MHZ; + BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_4); + break; + default: + pr_err("%s: Unexpected clock rate %ld", __func__, c->rate); + BUG(); + } + clk_writel(auto_clock_control, OSC_CTRL); + return c->rate; +} + +static void tegra30_clk_m_init(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + tegra30_clk_m_autodetect_rate(c); +} + +static int tegra30_clk_m_enable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + return 0; +} + +static void tegra30_clk_m_disable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + WARN(1, "Attempting to disable main SoC clock\n"); +} + +static struct clk_ops tegra_clk_m_ops = { + .init = tegra30_clk_m_init, + .enable = tegra30_clk_m_enable, + .disable = tegra30_clk_m_disable, +}; + +static struct clk_ops tegra_clk_m_div_ops = { + .enable = tegra30_clk_m_enable, +}; + +/* PLL reference divider functions */ +static void tegra30_pll_ref_init(struct clk *c) +{ + u32 pll_ref_div = clk_readl(OSC_CTRL) & OSC_CTRL_PLL_REF_DIV_MASK; + pr_debug("%s on clock %s\n", __func__, c->name); + + switch (pll_ref_div) { + case OSC_CTRL_PLL_REF_DIV_1: + c->div = 1; + break; + case OSC_CTRL_PLL_REF_DIV_2: + c->div = 2; + break; + case OSC_CTRL_PLL_REF_DIV_4: + c->div = 4; + break; + default: + pr_err("%s: Invalid pll ref divider %d", __func__, pll_ref_div); + BUG(); + } + c->mul = 1; + c->state = ON; +} + +static struct clk_ops tegra_pll_ref_ops = { + .init = tegra30_pll_ref_init, + .enable = tegra30_clk_m_enable, + .disable = tegra30_clk_m_disable, +}; + +/* super clock functions */ +/* "super clocks" on tegra30 have two-stage muxes, fractional 7.1 divider and + * clock skipping super divider. We will ignore the clock skipping divider, + * since we can't lower the voltage when using the clock skip, but we can if + * we lower the PLL frequency. We will use 7.1 divider for CPU super-clock + * only when its parent is a fixed rate PLL, since we can't change PLL rate + * in this case. + */ +static void tegra30_super_clk_init(struct clk *c) +{ + u32 val; + int source; + int shift; + const struct clk_mux_sel *sel; + val = clk_readl(c->reg + SUPER_CLK_MUX); + c->state = ON; + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + source = (val >> shift) & SUPER_SOURCE_MASK; + if (c->flags & DIV_2) + source |= val & SUPER_LP_DIV2_BYPASS; + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->value == source) + break; + } + BUG_ON(sel->input == NULL); + c->parent = sel->input; + + if (c->flags & DIV_U71) { + /* Init safe 7.1 divider value (does not affect PLLX path) */ + clk_writel(SUPER_CLOCK_DIV_U71_MIN << SUPER_CLOCK_DIV_U71_SHIFT, + c->reg + SUPER_CLK_DIVIDER); + c->mul = 2; + c->div = 2; + if (!(c->parent->flags & PLLX)) + c->div += SUPER_CLOCK_DIV_U71_MIN; + } else + clk_writel(0, c->reg + SUPER_CLK_DIVIDER); +} + +static int tegra30_super_clk_enable(struct clk *c) +{ + return 0; +} + +static void tegra30_super_clk_disable(struct clk *c) +{ + /* since tegra 3 has 2 CPU super clocks - low power lp-mode clock and + geared up g-mode super clock - mode switch may request to disable + either of them; accept request with no affect on h/w */ +} + +static int tegra30_super_clk_set_parent(struct clk *c, struct clk *p) +{ + u32 val; + const struct clk_mux_sel *sel; + int shift; + + val = clk_readl(c->reg + SUPER_CLK_MUX); + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + /* For LP mode super-clock switch between PLLX direct + and divided-by-2 outputs is allowed only when other + than PLLX clock source is current parent */ + if ((c->flags & DIV_2) && (p->flags & PLLX) && + ((sel->value ^ val) & SUPER_LP_DIV2_BYPASS)) { + if (c->parent->flags & PLLX) + return -EINVAL; + val ^= SUPER_LP_DIV2_BYPASS; + clk_writel_delay(val, c->reg); + } + val &= ~(SUPER_SOURCE_MASK << shift); + val |= (sel->value & SUPER_SOURCE_MASK) << shift; + + /* 7.1 divider for CPU super-clock does not affect + PLLX path */ + if (c->flags & DIV_U71) { + u32 div = 0; + if (!(p->flags & PLLX)) { + div = clk_readl(c->reg + + SUPER_CLK_DIVIDER); + div &= SUPER_CLOCK_DIV_U71_MASK; + div >>= SUPER_CLOCK_DIV_U71_SHIFT; + } + c->div = div + 2; + c->mul = 2; + } + + if (c->refcnt) + clk_enable(p); + + clk_writel_delay(val, c->reg); + + if (c->refcnt && c->parent) + clk_disable(c->parent); + + clk_reparent(c, p); + return 0; + } + } + return -EINVAL; +} + +/* + * Do not use super clocks "skippers", since dividing using a clock skipper + * does not allow the voltage to be scaled down. Instead adjust the rate of + * the parent clock. This requires that the parent of a super clock have no + * other children, otherwise the rate will change underneath the other + * children. Special case: if fixed rate PLL is CPU super clock parent the + * rate of this PLL can't be changed, and it has many other children. In + * this case use 7.1 fractional divider to adjust the super clock rate. + */ +static int tegra30_super_clk_set_rate(struct clk *c, unsigned long rate) +{ + if ((c->flags & DIV_U71) && (c->parent->flags & PLL_FIXED)) { + int div = clk_div71_get_divider(c->parent->u.pll.fixed_rate, + rate, c->flags, ROUND_DIVIDER_DOWN); + div = max(div, SUPER_CLOCK_DIV_U71_MIN); + + clk_writel(div << SUPER_CLOCK_DIV_U71_SHIFT, + c->reg + SUPER_CLK_DIVIDER); + c->div = div + 2; + c->mul = 2; + return 0; + } + return clk_set_rate(c->parent, rate); +} + +static struct clk_ops tegra_super_ops = { + .init = tegra30_super_clk_init, + .enable = tegra30_super_clk_enable, + .disable = tegra30_super_clk_disable, + .set_parent = tegra30_super_clk_set_parent, + .set_rate = tegra30_super_clk_set_rate, +}; + +static int tegra30_twd_clk_set_rate(struct clk *c, unsigned long rate) +{ + /* The input value 'rate' is the clock rate of the CPU complex. */ + c->rate = (rate * c->mul) / c->div; + return 0; +} + +static struct clk_ops tegra30_twd_ops = { + .set_rate = tegra30_twd_clk_set_rate, +}; + +/* Blink output functions */ + +static void tegra30_blink_clk_init(struct clk *c) +{ + u32 val; + + val = pmc_readl(PMC_CTRL); + c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF; + c->mul = 1; + val = pmc_readl(c->reg); + + if (val & PMC_BLINK_TIMER_ENB) { + unsigned int on_off; + + on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & + PMC_BLINK_TIMER_DATA_ON_MASK; + val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; + val &= PMC_BLINK_TIMER_DATA_OFF_MASK; + on_off += val; + /* each tick in the blink timer is 4 32KHz clocks */ + c->div = on_off * 4; + } else { + c->div = 1; + } +} + +static int tegra30_blink_clk_enable(struct clk *c) +{ + u32 val; + + val = pmc_readl(PMC_DPD_PADS_ORIDE); + pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); + + val = pmc_readl(PMC_CTRL); + pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL); + + return 0; +} + +static void tegra30_blink_clk_disable(struct clk *c) +{ + u32 val; + + val = pmc_readl(PMC_CTRL); + pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL); + + val = pmc_readl(PMC_DPD_PADS_ORIDE); + pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); +} + +static int tegra30_blink_clk_set_rate(struct clk *c, unsigned long rate) +{ + unsigned long parent_rate = clk_get_rate(c->parent); + if (rate >= parent_rate) { + c->div = 1; + pmc_writel(0, c->reg); + } else { + unsigned int on_off; + u32 val; + + on_off = DIV_ROUND_UP(parent_rate / 8, rate); + c->div = on_off * 8; + + val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) << + PMC_BLINK_TIMER_DATA_ON_SHIFT; + on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK; + on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT; + val |= on_off; + val |= PMC_BLINK_TIMER_ENB; + pmc_writel(val, c->reg); + } + + return 0; +} + +static struct clk_ops tegra_blink_clk_ops = { + .init = &tegra30_blink_clk_init, + .enable = &tegra30_blink_clk_enable, + .disable = &tegra30_blink_clk_disable, + .set_rate = &tegra30_blink_clk_set_rate, +}; + +/* PLL Functions */ +static int tegra30_pll_clk_wait_for_lock(struct clk *c, u32 lock_reg, + u32 lock_bit) +{ +#if USE_PLL_LOCK_BITS + int i; + for (i = 0; i < c->u.pll.lock_delay; i++) { + if (clk_readl(lock_reg) & lock_bit) { + udelay(PLL_POST_LOCK_DELAY); + return 0; + } + udelay(2); /* timeout = 2 * lock time */ + } + pr_err("Timed out waiting for lock bit on pll %s", c->name); + return -1; +#endif + udelay(c->u.pll.lock_delay); + + return 0; +} + + +static void tegra30_utmi_param_configure(struct clk *c) +{ + u32 reg; + int i; + unsigned long main_rate = + clk_get_rate(c->parent->parent); + + for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) { + if (main_rate == utmi_parameters[i].osc_frequency) + break; + } + + if (i >= ARRAY_SIZE(utmi_parameters)) { + pr_err("%s: Unexpected main rate %lu\n", __func__, main_rate); + return; + } + + reg = clk_readl(UTMIP_PLL_CFG2); + + /* Program UTMIP PLL stable and active counts */ + /* [FIXME] arclk_rst.h says WRONG! This should be 1ms -> 0x50 Check! */ + reg &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0); + reg |= UTMIP_PLL_CFG2_STABLE_COUNT( + utmi_parameters[i].stable_count); + + reg &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0); + + reg |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT( + utmi_parameters[i].active_delay_count); + + /* Remove power downs from UTMIP PLL control bits */ + reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN; + reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN; + reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN; + + clk_writel(reg, UTMIP_PLL_CFG2); + + /* Program UTMIP PLL delay and oscillator frequency counts */ + reg = clk_readl(UTMIP_PLL_CFG1); + reg &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0); + + reg |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT( + utmi_parameters[i].enable_delay_count); + + reg &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0); + reg |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT( + utmi_parameters[i].xtal_freq_count); + + /* Remove power downs from UTMIP PLL control bits */ + reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN; + reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN; + reg &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN; + + clk_writel(reg, UTMIP_PLL_CFG1); +} + +static void tegra30_pll_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg + PLL_BASE); + + c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; + + if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { + const struct clk_pll_freq_table *sel; + unsigned long input_rate = clk_get_rate(c->parent); + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == input_rate && + sel->output_rate == c->u.pll.fixed_rate) { + c->mul = sel->n; + c->div = sel->m * sel->p; + return; + } + } + pr_err("Clock %s has unknown fixed frequency\n", c->name); + BUG(); + } else if (val & PLL_BASE_BYPASS) { + c->mul = 1; + c->div = 1; + } else { + c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; + c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; + if (c->flags & PLLU) + c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; + else + c->div *= (0x1 << ((val & PLL_BASE_DIVP_MASK) >> + PLL_BASE_DIVP_SHIFT)); + if (c->flags & PLL_FIXED) { + unsigned long rate = clk_get_rate_locked(c); + BUG_ON(rate != c->u.pll.fixed_rate); + } + } + + if (c->flags & PLLU) + tegra30_utmi_param_configure(c); +} + +static int tegra30_pll_clk_enable(struct clk *c) +{ + u32 val; + pr_debug("%s on clock %s\n", __func__, c->name); + +#if USE_PLL_LOCK_BITS + val = clk_readl(c->reg + PLL_MISC(c)); + val |= PLL_MISC_LOCK_ENABLE(c); + clk_writel(val, c->reg + PLL_MISC(c)); +#endif + val = clk_readl(c->reg + PLL_BASE); + val &= ~PLL_BASE_BYPASS; + val |= PLL_BASE_ENABLE; + clk_writel(val, c->reg + PLL_BASE); + + if (c->flags & PLLM) { + val = pmc_readl(PMC_PLLP_WB0_OVERRIDE); + val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE; + pmc_writel(val, PMC_PLLP_WB0_OVERRIDE); + } + + tegra30_pll_clk_wait_for_lock(c, c->reg + PLL_BASE, PLL_BASE_LOCK); + + return 0; +} + +static void tegra30_pll_clk_disable(struct clk *c) +{ + u32 val; + pr_debug("%s on clock %s\n", __func__, c->name); + + val = clk_readl(c->reg); + val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); + clk_writel(val, c->reg); + + if (c->flags & PLLM) { + val = pmc_readl(PMC_PLLP_WB0_OVERRIDE); + val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE; + pmc_writel(val, PMC_PLLP_WB0_OVERRIDE); + } +} + +static int tegra30_pll_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val, p_div, old_base; + unsigned long input_rate; + const struct clk_pll_freq_table *sel; + struct clk_pll_freq_table cfg; + + pr_debug("%s: %s %lu\n", __func__, c->name, rate); + + if (c->flags & PLL_FIXED) { + int ret = 0; + if (rate != c->u.pll.fixed_rate) { + pr_err("%s: Can not change %s fixed rate %lu to %lu\n", + __func__, c->name, c->u.pll.fixed_rate, rate); + ret = -EINVAL; + } + return ret; + } + + if (c->flags & PLLM) { + if (rate != clk_get_rate_locked(c)) { + pr_err("%s: Can not change memory %s rate in flight\n", + __func__, c->name); + return -EINVAL; + } + return 0; + } + + p_div = 0; + input_rate = clk_get_rate(c->parent); + + /* Check if the target rate is tabulated */ + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == input_rate && sel->output_rate == rate) { + if (c->flags & PLLU) { + BUG_ON(sel->p < 1 || sel->p > 2); + if (sel->p == 1) + p_div = PLLU_BASE_POST_DIV; + } else { + BUG_ON(sel->p < 1); + for (val = sel->p; val > 1; val >>= 1) + p_div++; + p_div <<= PLL_BASE_DIVP_SHIFT; + } + break; + } + } + + /* Configure out-of-table rate */ + if (sel->input_rate == 0) { + unsigned long cfreq; + BUG_ON(c->flags & PLLU); + sel = &cfg; + + switch (input_rate) { + case 12000000: + case 26000000: + cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000; + break; + case 13000000: + cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000; + break; + case 16800000: + case 19200000: + cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000; + break; + default: + pr_err("%s: Unexpected reference rate %lu\n", + __func__, input_rate); + BUG(); + } + + /* Raise VCO to guarantee 0.5% accuracy */ + for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq; + cfg.output_rate <<= 1) + p_div++; + + cfg.p = 0x1 << p_div; + cfg.m = input_rate / cfreq; + cfg.n = cfg.output_rate / cfreq; + cfg.cpcon = OUT_OF_TABLE_CPCON; + + if ((cfg.m > (PLL_BASE_DIVM_MASK >> PLL_BASE_DIVM_SHIFT)) || + (cfg.n > (PLL_BASE_DIVN_MASK >> PLL_BASE_DIVN_SHIFT)) || + (p_div > (PLL_BASE_DIVP_MASK >> PLL_BASE_DIVP_SHIFT)) || + (cfg.output_rate > c->u.pll.vco_max)) { + pr_err("%s: Failed to set %s out-of-table rate %lu\n", + __func__, c->name, rate); + return -EINVAL; + } + p_div <<= PLL_BASE_DIVP_SHIFT; + } + + c->mul = sel->n; + c->div = sel->m * sel->p; + + old_base = val = clk_readl(c->reg + PLL_BASE); + val &= ~(PLL_BASE_DIVM_MASK | PLL_BASE_DIVN_MASK | + ((c->flags & PLLU) ? PLLU_BASE_POST_DIV : PLL_BASE_DIVP_MASK)); + val |= (sel->m << PLL_BASE_DIVM_SHIFT) | + (sel->n << PLL_BASE_DIVN_SHIFT) | p_div; + if (val == old_base) + return 0; + + if (c->state == ON) { + tegra30_pll_clk_disable(c); + val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); + } + clk_writel(val, c->reg + PLL_BASE); + + if (c->flags & PLL_HAS_CPCON) { + val = clk_readl(c->reg + PLL_MISC(c)); + val &= ~PLL_MISC_CPCON_MASK; + val |= sel->cpcon << PLL_MISC_CPCON_SHIFT; + if (c->flags & (PLLU | PLLD)) { + val &= ~PLL_MISC_LFCON_MASK; + if (sel->n >= PLLDU_LFCON_SET_DIVN) + val |= 0x1 << PLL_MISC_LFCON_SHIFT; + } else if (c->flags & (PLLX | PLLM)) { + val &= ~(0x1 << PLL_MISC_DCCON_SHIFT); + if (rate >= (c->u.pll.vco_max >> 1)) + val |= 0x1 << PLL_MISC_DCCON_SHIFT; + } + clk_writel(val, c->reg + PLL_MISC(c)); + } + + if (c->state == ON) + tegra30_pll_clk_enable(c); + + return 0; +} + +static struct clk_ops tegra_pll_ops = { + .init = tegra30_pll_clk_init, + .enable = tegra30_pll_clk_enable, + .disable = tegra30_pll_clk_disable, + .set_rate = tegra30_pll_clk_set_rate, +}; + +static int +tegra30_plld_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +{ + u32 val, mask, reg; + + switch (p) { + case TEGRA_CLK_PLLD_CSI_OUT_ENB: + mask = PLLD_BASE_CSI_CLKENABLE; + reg = c->reg + PLL_BASE; + break; + case TEGRA_CLK_PLLD_DSI_OUT_ENB: + mask = PLLD_MISC_DSI_CLKENABLE; + reg = c->reg + PLL_MISC(c); + break; + case TEGRA_CLK_PLLD_MIPI_MUX_SEL: + if (!(c->flags & PLL_ALT_MISC_REG)) { + mask = PLLD_BASE_DSIB_MUX_MASK; + reg = c->reg + PLL_BASE; + break; + } + /* fall through - error since PLLD2 does not have MUX_SEL control */ + default: + return -EINVAL; + } + + val = clk_readl(reg); + if (setting) + val |= mask; + else + val &= ~mask; + clk_writel(val, reg); + return 0; +} + +static struct clk_ops tegra_plld_ops = { + .init = tegra30_pll_clk_init, + .enable = tegra30_pll_clk_enable, + .disable = tegra30_pll_clk_disable, + .set_rate = tegra30_pll_clk_set_rate, + .clk_cfg_ex = tegra30_plld_clk_cfg_ex, +}; + +static void tegra30_plle_clk_init(struct clk *c) +{ + u32 val; + + val = clk_readl(PLLE_AUX); + c->parent = (val & PLLE_AUX_PLLP_SEL) ? + tegra_get_clock_by_name("pll_p") : + tegra_get_clock_by_name("pll_ref"); + + val = clk_readl(c->reg + PLL_BASE); + c->state = (val & PLLE_BASE_ENABLE) ? ON : OFF; + c->mul = (val & PLLE_BASE_DIVN_MASK) >> PLLE_BASE_DIVN_SHIFT; + c->div = (val & PLLE_BASE_DIVM_MASK) >> PLLE_BASE_DIVM_SHIFT; + c->div *= (val & PLLE_BASE_DIVP_MASK) >> PLLE_BASE_DIVP_SHIFT; +} + +static void tegra30_plle_clk_disable(struct clk *c) +{ + u32 val; + pr_debug("%s on clock %s\n", __func__, c->name); + + val = clk_readl(c->reg + PLL_BASE); + val &= ~(PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE); + clk_writel(val, c->reg + PLL_BASE); +} + +static void tegra30_plle_training(struct clk *c) +{ + u32 val; + + /* PLLE is already disabled, and setup cleared; + * create falling edge on PLLE IDDQ input */ + val = pmc_readl(PMC_SATA_PWRGT); + val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE; + pmc_writel(val, PMC_SATA_PWRGT); + + val = pmc_readl(PMC_SATA_PWRGT); + val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL; + pmc_writel(val, PMC_SATA_PWRGT); + + val = pmc_readl(PMC_SATA_PWRGT); + val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE; + pmc_writel(val, PMC_SATA_PWRGT); + + do { + val = clk_readl(c->reg + PLL_MISC(c)); + } while (!(val & PLLE_MISC_READY)); +} + +static int tegra30_plle_configure(struct clk *c, bool force_training) +{ + u32 val; + const struct clk_pll_freq_table *sel; + unsigned long rate = c->u.pll.fixed_rate; + unsigned long input_rate = clk_get_rate(c->parent); + + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == input_rate && sel->output_rate == rate) + break; + } + + if (sel->input_rate == 0) + return -ENOSYS; + + /* disable PLLE, clear setup fiels */ + tegra30_plle_clk_disable(c); + + val = clk_readl(c->reg + PLL_MISC(c)); + val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK); + clk_writel(val, c->reg + PLL_MISC(c)); + + /* training */ + val = clk_readl(c->reg + PLL_MISC(c)); + if (force_training || (!(val & PLLE_MISC_READY))) + tegra30_plle_training(c); + + /* configure dividers, setup, disable SS */ + val = clk_readl(c->reg + PLL_BASE); + val &= ~PLLE_BASE_DIV_MASK; + val |= PLLE_BASE_DIV(sel->m, sel->n, sel->p, sel->cpcon); + clk_writel(val, c->reg + PLL_BASE); + c->mul = sel->n; + c->div = sel->m * sel->p; + + val = clk_readl(c->reg + PLL_MISC(c)); + val |= PLLE_MISC_SETUP_VALUE; + val |= PLLE_MISC_LOCK_ENABLE; + clk_writel(val, c->reg + PLL_MISC(c)); + + val = clk_readl(PLLE_SS_CTRL); + val |= PLLE_SS_DISABLE; + clk_writel(val, PLLE_SS_CTRL); + + /* enable and lock PLLE*/ + val = clk_readl(c->reg + PLL_BASE); + val |= (PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE); + clk_writel(val, c->reg + PLL_BASE); + + tegra30_pll_clk_wait_for_lock(c, c->reg + PLL_MISC(c), PLLE_MISC_LOCK); + + return 0; +} + +static int tegra30_plle_clk_enable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + return tegra30_plle_configure(c, !c->set); +} + +static struct clk_ops tegra_plle_ops = { + .init = tegra30_plle_clk_init, + .enable = tegra30_plle_clk_enable, + .disable = tegra30_plle_clk_disable, +}; + +/* Clock divider ops */ +static void tegra30_pll_div_clk_init(struct clk *c) +{ + if (c->flags & DIV_U71) { + u32 divu71; + u32 val = clk_readl(c->reg); + val >>= c->reg_shift; + c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; + if (!(val & PLL_OUT_RESET_DISABLE)) + c->state = OFF; + + divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; + c->div = (divu71 + 2); + c->mul = 2; + } else if (c->flags & DIV_2) { + c->state = ON; + if (c->flags & (PLLD | PLLX)) { + c->div = 2; + c->mul = 1; + } else + BUG(); + } else { + c->state = ON; + c->div = 1; + c->mul = 1; + } +} + +static int tegra30_pll_div_clk_enable(struct clk *c) +{ + u32 val; + u32 new_val; + + pr_debug("%s: %s\n", __func__, c->name); + if (c->flags & DIV_U71) { + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + + new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE; + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel_delay(val, c->reg); + return 0; + } else if (c->flags & DIV_2) { + return 0; + } + return -EINVAL; +} + +static void tegra30_pll_div_clk_disable(struct clk *c) +{ + u32 val; + u32 new_val; + + pr_debug("%s: %s\n", __func__, c->name); + if (c->flags & DIV_U71) { + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + + new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE); + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel_delay(val, c->reg); + } +} + +static int tegra30_pll_div_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val; + u32 new_val; + int divider_u71; + unsigned long parent_rate = clk_get_rate(c->parent); + + pr_debug("%s: %s %lu\n", __func__, c->name, rate); + if (c->flags & DIV_U71) { + divider_u71 = clk_div71_get_divider( + parent_rate, rate, c->flags, ROUND_DIVIDER_UP); + if (divider_u71 >= 0) { + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + if (c->flags & DIV_U71_FIXED) + new_val |= PLL_OUT_OVERRIDE; + new_val &= ~PLL_OUT_RATIO_MASK; + new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT; + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel_delay(val, c->reg); + c->div = divider_u71 + 2; + c->mul = 2; + return 0; + } + } else if (c->flags & DIV_2) + return clk_set_rate(c->parent, rate * 2); + + return -EINVAL; +} + +static long tegra30_pll_div_clk_round_rate(struct clk *c, unsigned long rate) +{ + int divider; + unsigned long parent_rate = clk_get_rate(c->parent); + pr_debug("%s: %s %lu\n", __func__, c->name, rate); + + if (c->flags & DIV_U71) { + divider = clk_div71_get_divider( + parent_rate, rate, c->flags, ROUND_DIVIDER_UP); + if (divider < 0) + return divider; + return DIV_ROUND_UP(parent_rate * 2, divider + 2); + } else if (c->flags & DIV_2) + /* no rounding - fixed DIV_2 dividers pass rate to parent PLL */ + return rate; + + return -EINVAL; +} + +static struct clk_ops tegra_pll_div_ops = { + .init = tegra30_pll_div_clk_init, + .enable = tegra30_pll_div_clk_enable, + .disable = tegra30_pll_div_clk_disable, + .set_rate = tegra30_pll_div_clk_set_rate, + .round_rate = tegra30_pll_div_clk_round_rate, +}; + +/* Periph clk ops */ +static inline u32 periph_clk_source_mask(struct clk *c) +{ + if (c->flags & MUX8) + return 7 << 29; + else if (c->flags & MUX_PWM) + return 3 << 28; + else if (c->flags & MUX_CLK_OUT) + return 3 << (c->u.periph.clk_num + 4); + else if (c->flags & PLLD) + return PLLD_BASE_DSIB_MUX_MASK; + else + return 3 << 30; +} + +static inline u32 periph_clk_source_shift(struct clk *c) +{ + if (c->flags & MUX8) + return 29; + else if (c->flags & MUX_PWM) + return 28; + else if (c->flags & MUX_CLK_OUT) + return c->u.periph.clk_num + 4; + else if (c->flags & PLLD) + return PLLD_BASE_DSIB_MUX_SHIFT; + else + return 30; +} + +static void tegra30_periph_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg); + const struct clk_mux_sel *mux = 0; + const struct clk_mux_sel *sel; + if (c->flags & MUX) { + for (sel = c->inputs; sel->input != NULL; sel++) { + if (((val & periph_clk_source_mask(c)) >> + periph_clk_source_shift(c)) == sel->value) + mux = sel; + } + BUG_ON(!mux); + + c->parent = mux->input; + } else { + c->parent = c->inputs[0].input; + } + + if (c->flags & DIV_U71) { + u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; + if ((c->flags & DIV_U71_UART) && + (!(val & PERIPH_CLK_UART_DIV_ENB))) { + divu71 = 0; + } + if (c->flags & DIV_U71_IDLE) { + val &= ~(PERIPH_CLK_SOURCE_DIVU71_MASK << + PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); + val |= (PERIPH_CLK_SOURCE_DIVIDLE_VAL << + PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); + clk_writel(val, c->reg); + } + c->div = divu71 + 2; + c->mul = 2; + } else if (c->flags & DIV_U16) { + u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; + c->div = divu16 + 1; + c->mul = 1; + } else { + c->div = 1; + c->mul = 1; + } + + c->state = ON; + if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c))) + c->state = OFF; + if (!(c->flags & PERIPH_NO_RESET)) + if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & PERIPH_CLK_TO_BIT(c)) + c->state = OFF; +} + +static int tegra30_periph_clk_enable(struct clk *c) +{ + pr_debug("%s on clock %s\n", __func__, c->name); + + tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++; + if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1) + return 0; + + clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_SET_REG(c)); + if (!(c->flags & PERIPH_NO_RESET) && + !(c->flags & PERIPH_MANUAL_RESET)) { + if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & + PERIPH_CLK_TO_BIT(c)) { + udelay(5); /* reset propagation delay */ + clk_writel(PERIPH_CLK_TO_BIT(c), + PERIPH_CLK_TO_RST_CLR_REG(c)); + } + } + return 0; +} + +static void tegra30_periph_clk_disable(struct clk *c) +{ + unsigned long val; + pr_debug("%s on clock %s\n", __func__, c->name); + + if (c->refcnt) + tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; + + if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] == 0) { + /* If peripheral is in the APB bus then read the APB bus to + * flush the write operation in apb bus. This will avoid the + * peripheral access after disabling clock*/ + if (c->flags & PERIPH_ON_APB) + val = chipid_readl(); + + clk_writel_delay( + PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_CLR_REG(c)); + } +} + +static void tegra30_periph_clk_reset(struct clk *c, bool assert) +{ + unsigned long val; + pr_debug("%s %s on clock %s\n", __func__, + assert ? "assert" : "deassert", c->name); + + if (!(c->flags & PERIPH_NO_RESET)) { + if (assert) { + /* If peripheral is in the APB bus then read the APB + * bus to flush the write operation in apb bus. This + * will avoid the peripheral access after disabling + * clock */ + if (c->flags & PERIPH_ON_APB) + val = chipid_readl(); + + clk_writel(PERIPH_CLK_TO_BIT(c), + PERIPH_CLK_TO_RST_SET_REG(c)); + } else + clk_writel(PERIPH_CLK_TO_BIT(c), + PERIPH_CLK_TO_RST_CLR_REG(c)); + } +} + +static int tegra30_periph_clk_set_parent(struct clk *c, struct clk *p) +{ + u32 val; + const struct clk_mux_sel *sel; + pr_debug("%s: %s %s\n", __func__, c->name, p->name); + + if (!(c->flags & MUX)) + return (p == c->parent) ? 0 : (-EINVAL); + + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + val = clk_readl(c->reg); + val &= ~periph_clk_source_mask(c); + val |= (sel->value << periph_clk_source_shift(c)); + + if (c->refcnt) + clk_enable(p); + + clk_writel_delay(val, c->reg); + + if (c->refcnt && c->parent) + clk_disable(c->parent); + + clk_reparent(c, p); + return 0; + } + } + + return -EINVAL; +} + +static int tegra30_periph_clk_set_rate(struct clk *c, unsigned long rate) +{ + u32 val; + int divider; + unsigned long parent_rate = clk_get_rate(c->parent); + + if (c->flags & DIV_U71) { + divider = clk_div71_get_divider( + parent_rate, rate, c->flags, ROUND_DIVIDER_UP); + if (divider >= 0) { + val = clk_readl(c->reg); + val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK; + val |= divider; + if (c->flags & DIV_U71_UART) { + if (divider) + val |= PERIPH_CLK_UART_DIV_ENB; + else + val &= ~PERIPH_CLK_UART_DIV_ENB; + } + clk_writel_delay(val, c->reg); + c->div = divider + 2; + c->mul = 2; + return 0; + } + } else if (c->flags & DIV_U16) { + divider = clk_div16_get_divider(parent_rate, rate); + if (divider >= 0) { + val = clk_readl(c->reg); + val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK; + val |= divider; + clk_writel_delay(val, c->reg); + c->div = divider + 1; + c->mul = 1; + return 0; + } + } else if (parent_rate <= rate) { + c->div = 1; + c->mul = 1; + return 0; + } + return -EINVAL; +} + +static long tegra30_periph_clk_round_rate(struct clk *c, + unsigned long rate) +{ + int divider; + unsigned long parent_rate = clk_get_rate(c->parent); + pr_debug("%s: %s %lu\n", __func__, c->name, rate); + + if (c->flags & DIV_U71) { + divider = clk_div71_get_divider( + parent_rate, rate, c->flags, ROUND_DIVIDER_UP); + if (divider < 0) + return divider; + + return DIV_ROUND_UP(parent_rate * 2, divider + 2); + } else if (c->flags & DIV_U16) { + divider = clk_div16_get_divider(parent_rate, rate); + if (divider < 0) + return divider; + return DIV_ROUND_UP(parent_rate, divider + 1); + } + return -EINVAL; +} + +static struct clk_ops tegra_periph_clk_ops = { + .init = &tegra30_periph_clk_init, + .enable = &tegra30_periph_clk_enable, + .disable = &tegra30_periph_clk_disable, + .set_parent = &tegra30_periph_clk_set_parent, + .set_rate = &tegra30_periph_clk_set_rate, + .round_rate = &tegra30_periph_clk_round_rate, + .reset = &tegra30_periph_clk_reset, +}; + + +/* Periph extended clock configuration ops */ +static int +tegra30_vi_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +{ + if (p == TEGRA_CLK_VI_INP_SEL) { + u32 val = clk_readl(c->reg); + val &= ~PERIPH_CLK_VI_SEL_EX_MASK; + val |= (setting << PERIPH_CLK_VI_SEL_EX_SHIFT) & + PERIPH_CLK_VI_SEL_EX_MASK; + clk_writel(val, c->reg); + return 0; + } + return -EINVAL; +} + +static struct clk_ops tegra_vi_clk_ops = { + .init = &tegra30_periph_clk_init, + .enable = &tegra30_periph_clk_enable, + .disable = &tegra30_periph_clk_disable, + .set_parent = &tegra30_periph_clk_set_parent, + .set_rate = &tegra30_periph_clk_set_rate, + .round_rate = &tegra30_periph_clk_round_rate, + .clk_cfg_ex = &tegra30_vi_clk_cfg_ex, + .reset = &tegra30_periph_clk_reset, +}; + +static int +tegra30_nand_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +{ + if (p == TEGRA_CLK_NAND_PAD_DIV2_ENB) { + u32 val = clk_readl(c->reg); + if (setting) + val |= PERIPH_CLK_NAND_DIV_EX_ENB; + else + val &= ~PERIPH_CLK_NAND_DIV_EX_ENB; + clk_writel(val, c->reg); + return 0; + } + return -EINVAL; +} + +static struct clk_ops tegra_nand_clk_ops = { + .init = &tegra30_periph_clk_init, + .enable = &tegra30_periph_clk_enable, + .disable = &tegra30_periph_clk_disable, + .set_parent = &tegra30_periph_clk_set_parent, + .set_rate = &tegra30_periph_clk_set_rate, + .round_rate = &tegra30_periph_clk_round_rate, + .clk_cfg_ex = &tegra30_nand_clk_cfg_ex, + .reset = &tegra30_periph_clk_reset, +}; + + +static int +tegra30_dtv_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +{ + if (p == TEGRA_CLK_DTV_INVERT) { + u32 val = clk_readl(c->reg); + if (setting) + val |= PERIPH_CLK_DTV_POLARITY_INV; + else + val &= ~PERIPH_CLK_DTV_POLARITY_INV; + clk_writel(val, c->reg); + return 0; + } + return -EINVAL; +} + +static struct clk_ops tegra_dtv_clk_ops = { + .init = &tegra30_periph_clk_init, + .enable = &tegra30_periph_clk_enable, + .disable = &tegra30_periph_clk_disable, + .set_parent = &tegra30_periph_clk_set_parent, + .set_rate = &tegra30_periph_clk_set_rate, + .round_rate = &tegra30_periph_clk_round_rate, + .clk_cfg_ex = &tegra30_dtv_clk_cfg_ex, + .reset = &tegra30_periph_clk_reset, +}; + +static int tegra30_dsib_clk_set_parent(struct clk *c, struct clk *p) +{ + const struct clk_mux_sel *sel; + struct clk *d = tegra_get_clock_by_name("pll_d"); + + pr_debug("%s: %s %s\n", __func__, c->name, p->name); + + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + if (c->refcnt) + clk_enable(p); + + /* The DSIB parent selection bit is in PLLD base + register - can not do direct r-m-w, must be + protected by PLLD lock */ + tegra_clk_cfg_ex( + d, TEGRA_CLK_PLLD_MIPI_MUX_SEL, sel->value); + + if (c->refcnt && c->parent) + clk_disable(c->parent); + + clk_reparent(c, p); + return 0; + } + } + + return -EINVAL; +} + +static struct clk_ops tegra_dsib_clk_ops = { + .init = &tegra30_periph_clk_init, + .enable = &tegra30_periph_clk_enable, + .disable = &tegra30_periph_clk_disable, + .set_parent = &tegra30_dsib_clk_set_parent, + .set_rate = &tegra30_periph_clk_set_rate, + .round_rate = &tegra30_periph_clk_round_rate, + .reset = &tegra30_periph_clk_reset, +}; + +/* pciex clock support only reset function */ +static struct clk_ops tegra_pciex_clk_ops = { + .reset = tegra30_periph_clk_reset, +}; + +/* Output clock ops */ + +static DEFINE_SPINLOCK(clk_out_lock); + +static void tegra30_clk_out_init(struct clk *c) +{ + const struct clk_mux_sel *mux = 0; + const struct clk_mux_sel *sel; + u32 val = pmc_readl(c->reg); + + c->state = (val & (0x1 << c->u.periph.clk_num)) ? ON : OFF; + c->mul = 1; + c->div = 1; + + for (sel = c->inputs; sel->input != NULL; sel++) { + if (((val & periph_clk_source_mask(c)) >> + periph_clk_source_shift(c)) == sel->value) + mux = sel; + } + BUG_ON(!mux); + c->parent = mux->input; +} + +static int tegra30_clk_out_enable(struct clk *c) +{ + u32 val; + unsigned long flags; + + pr_debug("%s on clock %s\n", __func__, c->name); + + spin_lock_irqsave(&clk_out_lock, flags); + val = pmc_readl(c->reg); + val |= (0x1 << c->u.periph.clk_num); + pmc_writel(val, c->reg); + spin_unlock_irqrestore(&clk_out_lock, flags); + + return 0; +} + +static void tegra30_clk_out_disable(struct clk *c) +{ + u32 val; + unsigned long flags; + + pr_debug("%s on clock %s\n", __func__, c->name); + + spin_lock_irqsave(&clk_out_lock, flags); + val = pmc_readl(c->reg); + val &= ~(0x1 << c->u.periph.clk_num); + pmc_writel(val, c->reg); + spin_unlock_irqrestore(&clk_out_lock, flags); +} + +static int tegra30_clk_out_set_parent(struct clk *c, struct clk *p) +{ + u32 val; + unsigned long flags; + const struct clk_mux_sel *sel; + + pr_debug("%s: %s %s\n", __func__, c->name, p->name); + + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + if (c->refcnt) + clk_enable(p); + + spin_lock_irqsave(&clk_out_lock, flags); + val = pmc_readl(c->reg); + val &= ~periph_clk_source_mask(c); + val |= (sel->value << periph_clk_source_shift(c)); + pmc_writel(val, c->reg); + spin_unlock_irqrestore(&clk_out_lock, flags); + + if (c->refcnt && c->parent) + clk_disable(c->parent); + + clk_reparent(c, p); + return 0; + } + } + return -EINVAL; +} + +static struct clk_ops tegra_clk_out_ops = { + .init = &tegra30_clk_out_init, + .enable = &tegra30_clk_out_enable, + .disable = &tegra30_clk_out_disable, + .set_parent = &tegra30_clk_out_set_parent, +}; + + +/* Clock doubler ops */ +static void tegra30_clk_double_init(struct clk *c) +{ + u32 val = clk_readl(c->reg); + c->mul = val & (0x1 << c->reg_shift) ? 1 : 2; + c->div = 1; + c->state = ON; + if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c))) + c->state = OFF; +}; + +static int tegra30_clk_double_set_rate(struct clk *c, unsigned long rate) +{ + u32 val; + unsigned long parent_rate = clk_get_rate(c->parent); + if (rate == parent_rate) { + val = clk_readl(c->reg) | (0x1 << c->reg_shift); + clk_writel(val, c->reg); + c->mul = 1; + c->div = 1; + return 0; + } else if (rate == 2 * parent_rate) { + val = clk_readl(c->reg) & (~(0x1 << c->reg_shift)); + clk_writel(val, c->reg); + c->mul = 2; + c->div = 1; + return 0; + } + return -EINVAL; +} + +static struct clk_ops tegra_clk_double_ops = { + .init = &tegra30_clk_double_init, + .enable = &tegra30_periph_clk_enable, + .disable = &tegra30_periph_clk_disable, + .set_rate = &tegra30_clk_double_set_rate, +}; + +/* Audio sync clock ops */ +static int tegra30_sync_source_set_rate(struct clk *c, unsigned long rate) +{ + c->rate = rate; + return 0; +} + +static struct clk_ops tegra_sync_source_ops = { + .set_rate = &tegra30_sync_source_set_rate, +}; + +static void tegra30_audio_sync_clk_init(struct clk *c) +{ + int source; + const struct clk_mux_sel *sel; + u32 val = clk_readl(c->reg); + c->state = (val & AUDIO_SYNC_DISABLE_BIT) ? OFF : ON; + source = val & AUDIO_SYNC_SOURCE_MASK; + for (sel = c->inputs; sel->input != NULL; sel++) + if (sel->value == source) + break; + BUG_ON(sel->input == NULL); + c->parent = sel->input; +} + +static int tegra30_audio_sync_clk_enable(struct clk *c) +{ + u32 val = clk_readl(c->reg); + clk_writel((val & (~AUDIO_SYNC_DISABLE_BIT)), c->reg); + return 0; +} + +static void tegra30_audio_sync_clk_disable(struct clk *c) +{ + u32 val = clk_readl(c->reg); + clk_writel((val | AUDIO_SYNC_DISABLE_BIT), c->reg); +} + +static int tegra30_audio_sync_clk_set_parent(struct clk *c, struct clk *p) +{ + u32 val; + const struct clk_mux_sel *sel; + for (sel = c->inputs; sel->input != NULL; sel++) { + if (sel->input == p) { + val = clk_readl(c->reg); + val &= ~AUDIO_SYNC_SOURCE_MASK; + val |= sel->value; + + if (c->refcnt) + clk_enable(p); + + clk_writel(val, c->reg); + + if (c->refcnt && c->parent) + clk_disable(c->parent); + + clk_reparent(c, p); + return 0; + } + } + + return -EINVAL; +} + +static struct clk_ops tegra_audio_sync_clk_ops = { + .init = tegra30_audio_sync_clk_init, + .enable = tegra30_audio_sync_clk_enable, + .disable = tegra30_audio_sync_clk_disable, + .set_parent = tegra30_audio_sync_clk_set_parent, +}; + +/* cml0 (pcie), and cml1 (sata) clock ops */ +static void tegra30_cml_clk_init(struct clk *c) +{ + u32 val = clk_readl(c->reg); + c->state = val & (0x1 << c->u.periph.clk_num) ? ON : OFF; +} + +static int tegra30_cml_clk_enable(struct clk *c) +{ + u32 val = clk_readl(c->reg); + val |= (0x1 << c->u.periph.clk_num); + clk_writel(val, c->reg); + return 0; +} + +static void tegra30_cml_clk_disable(struct clk *c) +{ + u32 val = clk_readl(c->reg); + val &= ~(0x1 << c->u.periph.clk_num); + clk_writel(val, c->reg); +} + +static struct clk_ops tegra_cml_clk_ops = { + .init = &tegra30_cml_clk_init, + .enable = &tegra30_cml_clk_enable, + .disable = &tegra30_cml_clk_disable, +}; + +/* Clock definitions */ +static struct clk tegra_clk_32k = { + .name = "clk_32k", + .rate = 32768, + .ops = NULL, + .max_rate = 32768, +}; + +static struct clk tegra_clk_m = { + .name = "clk_m", + .flags = ENABLE_ON_INIT, + .ops = &tegra_clk_m_ops, + .reg = 0x1fc, + .reg_shift = 28, + .max_rate = 48000000, +}; + +static struct clk tegra_clk_m_div2 = { + .name = "clk_m_div2", + .ops = &tegra_clk_m_div_ops, + .parent = &tegra_clk_m, + .mul = 1, + .div = 2, + .state = ON, + .max_rate = 24000000, +}; + +static struct clk tegra_clk_m_div4 = { + .name = "clk_m_div4", + .ops = &tegra_clk_m_div_ops, + .parent = &tegra_clk_m, + .mul = 1, + .div = 4, + .state = ON, + .max_rate = 12000000, +}; + +static struct clk tegra_pll_ref = { + .name = "pll_ref", + .flags = ENABLE_ON_INIT, + .ops = &tegra_pll_ref_ops, + .parent = &tegra_clk_m, + .max_rate = 26000000, +}; + +static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { + { 12000000, 1040000000, 520, 6, 1, 8}, + { 13000000, 1040000000, 480, 6, 1, 8}, + { 16800000, 1040000000, 495, 8, 1, 8}, /* actual: 1039.5 MHz */ + { 19200000, 1040000000, 325, 6, 1, 6}, + { 26000000, 1040000000, 520, 13, 1, 8}, + + { 12000000, 832000000, 416, 6, 1, 8}, + { 13000000, 832000000, 832, 13, 1, 8}, + { 16800000, 832000000, 396, 8, 1, 8}, /* actual: 831.6 MHz */ + { 19200000, 832000000, 260, 6, 1, 8}, + { 26000000, 832000000, 416, 13, 1, 8}, + + { 12000000, 624000000, 624, 12, 1, 8}, + { 13000000, 624000000, 624, 13, 1, 8}, + { 16800000, 600000000, 520, 14, 1, 8}, + { 19200000, 624000000, 520, 16, 1, 8}, + { 26000000, 624000000, 624, 26, 1, 8}, + + { 12000000, 600000000, 600, 12, 1, 8}, + { 13000000, 600000000, 600, 13, 1, 8}, + { 16800000, 600000000, 500, 14, 1, 8}, + { 19200000, 600000000, 375, 12, 1, 6}, + { 26000000, 600000000, 600, 26, 1, 8}, + + { 12000000, 520000000, 520, 12, 1, 8}, + { 13000000, 520000000, 520, 13, 1, 8}, + { 16800000, 520000000, 495, 16, 1, 8}, /* actual: 519.75 MHz */ + { 19200000, 520000000, 325, 12, 1, 6}, + { 26000000, 520000000, 520, 26, 1, 8}, + + { 12000000, 416000000, 416, 12, 1, 8}, + { 13000000, 416000000, 416, 13, 1, 8}, + { 16800000, 416000000, 396, 16, 1, 8}, /* actual: 415.8 MHz */ + { 19200000, 416000000, 260, 12, 1, 6}, + { 26000000, 416000000, 416, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_c = { + .name = "pll_c", + .flags = PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0x80, + .parent = &tegra_pll_ref, + .max_rate = 1400000000, + .u.pll = { + .input_min = 2000000, + .input_max = 31000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1400000000, + .freq_table = tegra_pll_c_freq_table, + .lock_delay = 300, + }, +}; + +static struct clk tegra_pll_c_out1 = { + .name = "pll_c_out1", + .ops = &tegra_pll_div_ops, + .flags = DIV_U71, + .parent = &tegra_pll_c, + .reg = 0x84, + .reg_shift = 0, + .max_rate = 700000000, +}; + +static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { + { 12000000, 666000000, 666, 12, 1, 8}, + { 13000000, 666000000, 666, 13, 1, 8}, + { 16800000, 666000000, 555, 14, 1, 8}, + { 19200000, 666000000, 555, 16, 1, 8}, + { 26000000, 666000000, 666, 26, 1, 8}, + { 12000000, 600000000, 600, 12, 1, 8}, + { 13000000, 600000000, 600, 13, 1, 8}, + { 16800000, 600000000, 500, 14, 1, 8}, + { 19200000, 600000000, 375, 12, 1, 6}, + { 26000000, 600000000, 600, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_m = { + .name = "pll_m", + .flags = PLL_HAS_CPCON | PLLM, + .ops = &tegra_pll_ops, + .reg = 0x90, + .parent = &tegra_pll_ref, + .max_rate = 800000000, + .u.pll = { + .input_min = 2000000, + .input_max = 31000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1200000000, + .freq_table = tegra_pll_m_freq_table, + .lock_delay = 300, + }, +}; + +static struct clk tegra_pll_m_out1 = { + .name = "pll_m_out1", + .ops = &tegra_pll_div_ops, + .flags = DIV_U71, + .parent = &tegra_pll_m, + .reg = 0x94, + .reg_shift = 0, + .max_rate = 600000000, +}; + +static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { + { 12000000, 216000000, 432, 12, 2, 8}, + { 13000000, 216000000, 432, 13, 2, 8}, + { 16800000, 216000000, 360, 14, 2, 8}, + { 19200000, 216000000, 360, 16, 2, 8}, + { 26000000, 216000000, 432, 26, 2, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_p = { + .name = "pll_p", + .flags = ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0xa0, + .parent = &tegra_pll_ref, + .max_rate = 432000000, + .u.pll = { + .input_min = 2000000, + .input_max = 31000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1400000000, + .freq_table = tegra_pll_p_freq_table, + .lock_delay = 300, + .fixed_rate = 408000000, + }, +}; + +static struct clk tegra_pll_p_out1 = { + .name = "pll_p_out1", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa4, + .reg_shift = 0, + .max_rate = 432000000, +}; + +static struct clk tegra_pll_p_out2 = { + .name = "pll_p_out2", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa4, + .reg_shift = 16, + .max_rate = 432000000, +}; + +static struct clk tegra_pll_p_out3 = { + .name = "pll_p_out3", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa8, + .reg_shift = 0, + .max_rate = 432000000, +}; + +static struct clk tegra_pll_p_out4 = { + .name = "pll_p_out4", + .ops = &tegra_pll_div_ops, + .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, + .parent = &tegra_pll_p, + .reg = 0xa8, + .reg_shift = 16, + .max_rate = 432000000, +}; + +static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { + { 9600000, 564480000, 294, 5, 1, 4}, + { 9600000, 552960000, 288, 5, 1, 4}, + { 9600000, 24000000, 5, 2, 1, 1}, + + { 28800000, 56448000, 49, 25, 1, 1}, + { 28800000, 73728000, 64, 25, 1, 1}, + { 28800000, 24000000, 5, 6, 1, 1}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_a = { + .name = "pll_a", + .flags = PLL_HAS_CPCON, + .ops = &tegra_pll_ops, + .reg = 0xb0, + .parent = &tegra_pll_p_out1, + .max_rate = 700000000, + .u.pll = { + .input_min = 2000000, + .input_max = 31000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1400000000, + .freq_table = tegra_pll_a_freq_table, + .lock_delay = 300, + }, +}; + +static struct clk tegra_pll_a_out0 = { + .name = "pll_a_out0", + .ops = &tegra_pll_div_ops, + .flags = DIV_U71, + .parent = &tegra_pll_a, + .reg = 0xb4, + .reg_shift = 0, + .max_rate = 100000000, +}; + +static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { + { 12000000, 216000000, 216, 12, 1, 4}, + { 13000000, 216000000, 216, 13, 1, 4}, + { 16800000, 216000000, 180, 14, 1, 4}, + { 19200000, 216000000, 180, 16, 1, 4}, + { 26000000, 216000000, 216, 26, 1, 4}, + + { 12000000, 594000000, 594, 12, 1, 8}, + { 13000000, 594000000, 594, 13, 1, 8}, + { 16800000, 594000000, 495, 14, 1, 8}, + { 19200000, 594000000, 495, 16, 1, 8}, + { 26000000, 594000000, 594, 26, 1, 8}, + + { 12000000, 1000000000, 1000, 12, 1, 12}, + { 13000000, 1000000000, 1000, 13, 1, 12}, + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 12}, + + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_d = { + .name = "pll_d", + .flags = PLL_HAS_CPCON | PLLD, + .ops = &tegra_plld_ops, + .reg = 0xd0, + .parent = &tegra_pll_ref, + .max_rate = 1000000000, + .u.pll = { + .input_min = 2000000, + .input_max = 40000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 40000000, + .vco_max = 1000000000, + .freq_table = tegra_pll_d_freq_table, + .lock_delay = 1000, + }, +}; + +static struct clk tegra_pll_d_out0 = { + .name = "pll_d_out0", + .ops = &tegra_pll_div_ops, + .flags = DIV_2 | PLLD, + .parent = &tegra_pll_d, + .max_rate = 500000000, +}; + +static struct clk tegra_pll_d2 = { + .name = "pll_d2", + .flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLD, + .ops = &tegra_plld_ops, + .reg = 0x4b8, + .parent = &tegra_pll_ref, + .max_rate = 1000000000, + .u.pll = { + .input_min = 2000000, + .input_max = 40000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 40000000, + .vco_max = 1000000000, + .freq_table = tegra_pll_d_freq_table, + .lock_delay = 1000, + }, +}; + +static struct clk tegra_pll_d2_out0 = { + .name = "pll_d2_out0", + .ops = &tegra_pll_div_ops, + .flags = DIV_2 | PLLD, + .parent = &tegra_pll_d2, + .max_rate = 500000000, +}; + +static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { + { 12000000, 480000000, 960, 12, 2, 12}, + { 13000000, 480000000, 960, 13, 2, 12}, + { 16800000, 480000000, 400, 7, 2, 5}, + { 19200000, 480000000, 200, 4, 2, 3}, + { 26000000, 480000000, 960, 26, 2, 12}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_u = { + .name = "pll_u", + .flags = PLL_HAS_CPCON | PLLU, + .ops = &tegra_pll_ops, + .reg = 0xc0, + .parent = &tegra_pll_ref, + .max_rate = 480000000, + .u.pll = { + .input_min = 2000000, + .input_max = 40000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 480000000, + .vco_max = 960000000, + .freq_table = tegra_pll_u_freq_table, + .lock_delay = 1000, + }, +}; + +static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { + /* 1.7 GHz */ + { 12000000, 1700000000, 850, 6, 1, 8}, + { 13000000, 1700000000, 915, 7, 1, 8}, /* actual: 1699.2 MHz */ + { 16800000, 1700000000, 708, 7, 1, 8}, /* actual: 1699.2 MHz */ + { 19200000, 1700000000, 885, 10, 1, 8}, /* actual: 1699.2 MHz */ + { 26000000, 1700000000, 850, 13, 1, 8}, + + /* 1.6 GHz */ + { 12000000, 1600000000, 800, 6, 1, 8}, + { 13000000, 1600000000, 738, 6, 1, 8}, /* actual: 1599.0 MHz */ + { 16800000, 1600000000, 857, 9, 1, 8}, /* actual: 1599.7 MHz */ + { 19200000, 1600000000, 500, 6, 1, 8}, + { 26000000, 1600000000, 800, 13, 1, 8}, + + /* 1.5 GHz */ + { 12000000, 1500000000, 750, 6, 1, 8}, + { 13000000, 1500000000, 923, 8, 1, 8}, /* actual: 1499.8 MHz */ + { 16800000, 1500000000, 625, 7, 1, 8}, + { 19200000, 1500000000, 625, 8, 1, 8}, + { 26000000, 1500000000, 750, 13, 1, 8}, + + /* 1.4 GHz */ + { 12000000, 1400000000, 700, 6, 1, 8}, + { 13000000, 1400000000, 969, 9, 1, 8}, /* actual: 1399.7 MHz */ + { 16800000, 1400000000, 1000, 12, 1, 8}, + { 19200000, 1400000000, 875, 12, 1, 8}, + { 26000000, 1400000000, 700, 13, 1, 8}, + + /* 1.3 GHz */ + { 12000000, 1300000000, 975, 9, 1, 8}, + { 13000000, 1300000000, 1000, 10, 1, 8}, + { 16800000, 1300000000, 928, 12, 1, 8}, /* actual: 1299.2 MHz */ + { 19200000, 1300000000, 812, 12, 1, 8}, /* actual: 1299.2 MHz */ + { 26000000, 1300000000, 650, 13, 1, 8}, + + /* 1.2 GHz */ + { 12000000, 1200000000, 1000, 10, 1, 8}, + { 13000000, 1200000000, 923, 10, 1, 8}, /* actual: 1199.9 MHz */ + { 16800000, 1200000000, 1000, 14, 1, 8}, + { 19200000, 1200000000, 1000, 16, 1, 8}, + { 26000000, 1200000000, 600, 13, 1, 8}, + + /* 1.1 GHz */ + { 12000000, 1100000000, 825, 9, 1, 8}, + { 13000000, 1100000000, 846, 10, 1, 8}, /* actual: 1099.8 MHz */ + { 16800000, 1100000000, 982, 15, 1, 8}, /* actual: 1099.8 MHz */ + { 19200000, 1100000000, 859, 15, 1, 8}, /* actual: 1099.5 MHz */ + { 26000000, 1100000000, 550, 13, 1, 8}, + + /* 1 GHz */ + { 12000000, 1000000000, 1000, 12, 1, 8}, + { 13000000, 1000000000, 1000, 13, 1, 8}, + { 16800000, 1000000000, 833, 14, 1, 8}, /* actual: 999.6 MHz */ + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 8}, + + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_x = { + .name = "pll_x", + .flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLX, + .ops = &tegra_pll_ops, + .reg = 0xe0, + .parent = &tegra_pll_ref, + .max_rate = 1700000000, + .u.pll = { + .input_min = 2000000, + .input_max = 31000000, + .cf_min = 1000000, + .cf_max = 6000000, + .vco_min = 20000000, + .vco_max = 1700000000, + .freq_table = tegra_pll_x_freq_table, + .lock_delay = 300, + }, +}; + +static struct clk tegra_pll_x_out0 = { + .name = "pll_x_out0", + .ops = &tegra_pll_div_ops, + .flags = DIV_2 | PLLX, + .parent = &tegra_pll_x, + .max_rate = 850000000, +}; + + +static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { + /* PLLE special case: use cpcon field to store cml divider value */ + { 12000000, 100000000, 150, 1, 18, 11}, + { 216000000, 100000000, 200, 18, 24, 13}, + { 0, 0, 0, 0, 0, 0 }, +}; + +static struct clk tegra_pll_e = { + .name = "pll_e", + .flags = PLL_ALT_MISC_REG, + .ops = &tegra_plle_ops, + .reg = 0xe8, + .max_rate = 100000000, + .u.pll = { + .input_min = 12000000, + .input_max = 216000000, + .cf_min = 12000000, + .cf_max = 12000000, + .vco_min = 1200000000, + .vco_max = 2400000000U, + .freq_table = tegra_pll_e_freq_table, + .lock_delay = 300, + .fixed_rate = 100000000, + }, +}; + +static struct clk tegra_cml0_clk = { + .name = "cml0", + .parent = &tegra_pll_e, + .ops = &tegra_cml_clk_ops, + .reg = PLLE_AUX, + .max_rate = 100000000, + .u.periph = { + .clk_num = 0, + }, +}; + +static struct clk tegra_cml1_clk = { + .name = "cml1", + .parent = &tegra_pll_e, + .ops = &tegra_cml_clk_ops, + .reg = PLLE_AUX, + .max_rate = 100000000, + .u.periph = { + .clk_num = 1, + }, +}; + +static struct clk tegra_pciex_clk = { + .name = "pciex", + .parent = &tegra_pll_e, + .ops = &tegra_pciex_clk_ops, + .max_rate = 100000000, + .u.periph = { + .clk_num = 74, + }, +}; + +/* Audio sync clocks */ +#define SYNC_SOURCE(_id) \ + { \ + .name = #_id "_sync", \ + .rate = 24000000, \ + .max_rate = 24000000, \ + .ops = &tegra_sync_source_ops \ + } +static struct clk tegra_sync_source_list[] = { + SYNC_SOURCE(spdif_in), + SYNC_SOURCE(i2s0), + SYNC_SOURCE(i2s1), + SYNC_SOURCE(i2s2), + SYNC_SOURCE(i2s3), + SYNC_SOURCE(i2s4), + SYNC_SOURCE(vimclk), +}; + +static struct clk_mux_sel mux_audio_sync_clk[] = { + { .input = &tegra_sync_source_list[0], .value = 0}, + { .input = &tegra_sync_source_list[1], .value = 1}, + { .input = &tegra_sync_source_list[2], .value = 2}, + { .input = &tegra_sync_source_list[3], .value = 3}, + { .input = &tegra_sync_source_list[4], .value = 4}, + { .input = &tegra_sync_source_list[5], .value = 5}, + { .input = &tegra_pll_a_out0, .value = 6}, + { .input = &tegra_sync_source_list[6], .value = 7}, + { 0, 0 } +}; + +#define AUDIO_SYNC_CLK(_id, _index) \ + { \ + .name = #_id, \ + .inputs = mux_audio_sync_clk, \ + .reg = 0x4A0 + (_index) * 4, \ + .max_rate = 24000000, \ + .ops = &tegra_audio_sync_clk_ops \ + } +static struct clk tegra_clk_audio_list[] = { + AUDIO_SYNC_CLK(audio0, 0), + AUDIO_SYNC_CLK(audio1, 1), + AUDIO_SYNC_CLK(audio2, 2), + AUDIO_SYNC_CLK(audio3, 3), + AUDIO_SYNC_CLK(audio4, 4), + AUDIO_SYNC_CLK(audio, 5), /* SPDIF */ +}; + +#define AUDIO_SYNC_2X_CLK(_id, _index) \ + { \ + .name = #_id "_2x", \ + .flags = PERIPH_NO_RESET, \ + .max_rate = 48000000, \ + .ops = &tegra_clk_double_ops, \ + .reg = 0x49C, \ + .reg_shift = 24 + (_index), \ + .parent = &tegra_clk_audio_list[(_index)], \ + .u.periph = { \ + .clk_num = 113 + (_index), \ + }, \ + } +static struct clk tegra_clk_audio_2x_list[] = { + AUDIO_SYNC_2X_CLK(audio0, 0), + AUDIO_SYNC_2X_CLK(audio1, 1), + AUDIO_SYNC_2X_CLK(audio2, 2), + AUDIO_SYNC_2X_CLK(audio3, 3), + AUDIO_SYNC_2X_CLK(audio4, 4), + AUDIO_SYNC_2X_CLK(audio, 5), /* SPDIF */ +}; + +#define MUX_I2S_SPDIF(_id, _index) \ +static struct clk_mux_sel mux_pllaout0_##_id##_2x_pllp_clkm[] = { \ + {.input = &tegra_pll_a_out0, .value = 0}, \ + {.input = &tegra_clk_audio_2x_list[(_index)], .value = 1}, \ + {.input = &tegra_pll_p, .value = 2}, \ + {.input = &tegra_clk_m, .value = 3}, \ + { 0, 0}, \ +} +MUX_I2S_SPDIF(audio0, 0); +MUX_I2S_SPDIF(audio1, 1); +MUX_I2S_SPDIF(audio2, 2); +MUX_I2S_SPDIF(audio3, 3); +MUX_I2S_SPDIF(audio4, 4); +MUX_I2S_SPDIF(audio, 5); /* SPDIF */ + +/* External clock outputs (through PMC) */ +#define MUX_EXTERN_OUT(_id) \ +static struct clk_mux_sel mux_clkm_clkm2_clkm4_extern##_id[] = { \ + {.input = &tegra_clk_m, .value = 0}, \ + {.input = &tegra_clk_m_div2, .value = 1}, \ + {.input = &tegra_clk_m_div4, .value = 2}, \ + {.input = NULL, .value = 3}, /* placeholder */ \ + { 0, 0}, \ +} +MUX_EXTERN_OUT(1); +MUX_EXTERN_OUT(2); +MUX_EXTERN_OUT(3); + +static struct clk_mux_sel *mux_extern_out_list[] = { + mux_clkm_clkm2_clkm4_extern1, + mux_clkm_clkm2_clkm4_extern2, + mux_clkm_clkm2_clkm4_extern3, +}; + +#define CLK_OUT_CLK(_id) \ + { \ + .name = "clk_out_" #_id, \ + .lookup = { \ + .dev_id = "clk_out_" #_id, \ + .con_id = "extern" #_id, \ + }, \ + .ops = &tegra_clk_out_ops, \ + .reg = 0x1a8, \ + .inputs = mux_clkm_clkm2_clkm4_extern##_id, \ + .flags = MUX_CLK_OUT, \ + .max_rate = 216000000, \ + .u.periph = { \ + .clk_num = (_id - 1) * 8 + 2, \ + }, \ + } +static struct clk tegra_clk_out_list[] = { + CLK_OUT_CLK(1), + CLK_OUT_CLK(2), + CLK_OUT_CLK(3), +}; + +/* called after peripheral external clocks are initialized */ +static void init_clk_out_mux(void) +{ + int i; + struct clk *c; + + /* output clock con_id is the name of peripheral + external clock connected to input 3 of the output mux */ + for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) { + c = tegra_get_clock_by_name( + tegra_clk_out_list[i].lookup.con_id); + if (!c) + pr_err("%s: could not find clk %s\n", __func__, + tegra_clk_out_list[i].lookup.con_id); + mux_extern_out_list[i][3].input = c; + } +} + +/* Peripheral muxes */ +static struct clk_mux_sel mux_sclk[] = { + { .input = &tegra_clk_m, .value = 0}, + { .input = &tegra_pll_c_out1, .value = 1}, + { .input = &tegra_pll_p_out4, .value = 2}, + { .input = &tegra_pll_p_out3, .value = 3}, + { .input = &tegra_pll_p_out2, .value = 4}, + /* { .input = &tegra_clk_d, .value = 5}, - no use on tegra30 */ + { .input = &tegra_clk_32k, .value = 6}, + { .input = &tegra_pll_m_out1, .value = 7}, + { 0, 0}, +}; + +static struct clk tegra_clk_sclk = { + .name = "sclk", + .inputs = mux_sclk, + .reg = 0x28, + .ops = &tegra_super_ops, + .max_rate = 334000000, + .min_rate = 40000000, +}; + +static struct clk tegra_clk_blink = { + .name = "blink", + .parent = &tegra_clk_32k, + .reg = 0x40, + .ops = &tegra_blink_clk_ops, + .max_rate = 32768, +}; + +static struct clk_mux_sel mux_pllm_pllc_pllp_plla[] = { + { .input = &tegra_pll_m, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_pll_p, .value = 2}, + { .input = &tegra_pll_a_out0, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_pllm_clkm[] = { + { .input = &tegra_pll_p, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_pll_m, .value = 2}, + { .input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_clkm[] = { + { .input = &tegra_pll_p, .value = 0}, + { .input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_plld_pllc_clkm[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_d_out0, .value = 1}, + {.input = &tegra_pll_c, .value = 2}, + {.input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllm_plld_plla_pllc_plld2_clkm[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_m, .value = 1}, + {.input = &tegra_pll_d_out0, .value = 2}, + {.input = &tegra_pll_a_out0, .value = 3}, + {.input = &tegra_pll_c, .value = 4}, + {.input = &tegra_pll_d2_out0, .value = 5}, + {.input = &tegra_clk_m, .value = 6}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_plla_pllc_pllp_clkm[] = { + { .input = &tegra_pll_a_out0, .value = 0}, + /* { .input = &tegra_pll_c, .value = 1}, no use on tegra30 */ + { .input = &tegra_pll_p, .value = 2}, + { .input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_clk32_clkm[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_c, .value = 1}, + {.input = &tegra_clk_32k, .value = 2}, + {.input = &tegra_clk_m, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_clkm_clk32[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_c, .value = 1}, + {.input = &tegra_clk_m, .value = 2}, + {.input = &tegra_clk_32k, .value = 3}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_pllc_pllm[] = { + {.input = &tegra_pll_p, .value = 0}, + {.input = &tegra_pll_c, .value = 1}, + {.input = &tegra_pll_m, .value = 2}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_clk_m[] = { + { .input = &tegra_clk_m, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_pllp_out3[] = { + { .input = &tegra_pll_p_out3, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_plld_out0[] = { + { .input = &tegra_pll_d_out0, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_plld_out0_plld2_out0[] = { + { .input = &tegra_pll_d_out0, .value = 0}, + { .input = &tegra_pll_d2_out0, .value = 1}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_clk_32k[] = { + { .input = &tegra_clk_32k, .value = 0}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_plla_clk32_pllp_clkm_plle[] = { + { .input = &tegra_pll_a_out0, .value = 0}, + { .input = &tegra_clk_32k, .value = 1}, + { .input = &tegra_pll_p, .value = 2}, + { .input = &tegra_clk_m, .value = 3}, + { .input = &tegra_pll_e, .value = 4}, + { 0, 0}, +}; + +static struct clk_mux_sel mux_cclk_g[] = { + { .input = &tegra_clk_m, .value = 0}, + { .input = &tegra_pll_c, .value = 1}, + { .input = &tegra_clk_32k, .value = 2}, + { .input = &tegra_pll_m, .value = 3}, + { .input = &tegra_pll_p, .value = 4}, + { .input = &tegra_pll_p_out4, .value = 5}, + { .input = &tegra_pll_p_out3, .value = 6}, + { .input = &tegra_pll_x, .value = 8}, + { 0, 0}, +}; + +static struct clk tegra_clk_cclk_g = { + .name = "cclk_g", + .flags = DIV_U71 | DIV_U71_INT, + .inputs = mux_cclk_g, + .reg = 0x368, + .ops = &tegra_super_ops, + .max_rate = 1700000000, +}; + +static struct clk tegra30_clk_twd = { + .parent = &tegra_clk_cclk_g, + .name = "twd", + .ops = &tegra30_twd_ops, + .max_rate = 1400000000, /* Same as tegra_clk_cpu_cmplx.max_rate */ + .mul = 1, + .div = 2, +}; + +#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + .ops = &tegra_periph_clk_ops, \ + .reg = _reg, \ + .inputs = _inputs, \ + .flags = _flags, \ + .max_rate = _max, \ + .u.periph = { \ + .clk_num = _clk_num, \ + }, \ + } + +#define PERIPH_CLK_EX(_name, _dev, _con, _clk_num, _reg, _max, _inputs, \ + _flags, _ops) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + .ops = _ops, \ + .reg = _reg, \ + .inputs = _inputs, \ + .flags = _flags, \ + .max_rate = _max, \ + .u.periph = { \ + .clk_num = _clk_num, \ + }, \ + } + +#define SHARED_CLK(_name, _dev, _con, _parent, _id, _div, _mode)\ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + .ops = &tegra_clk_shared_bus_ops, \ + .parent = _parent, \ + .u.shared_bus_user = { \ + .client_id = _id, \ + .client_div = _div, \ + .mode = _mode, \ + }, \ + } +struct clk tegra_list_clks[] = { + PERIPH_CLK("apbdma", "tegra-dma", NULL, 34, 0, 26000000, mux_clk_m, 0), + PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB), + PERIPH_CLK("kbc", "tegra-kbc", NULL, 36, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB), + PERIPH_CLK("timer", "timer", NULL, 5, 0, 26000000, mux_clk_m, 0), + PERIPH_CLK("kfuse", "kfuse-tegra", NULL, 40, 0, 26000000, mux_clk_m, 0), + PERIPH_CLK("fuse", "fuse-tegra", "fuse", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB), + PERIPH_CLK("fuse_burn", "fuse-tegra", "fuse_burn", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB), + PERIPH_CLK("apbif", "tegra30-ahub", "apbif", 107, 0, 26000000, mux_clk_m, 0), + PERIPH_CLK("i2s0", "tegra30-i2s.0", NULL, 30, 0x1d8, 26000000, mux_pllaout0_audio0_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("i2s1", "tegra30-i2s.1", NULL, 11, 0x100, 26000000, mux_pllaout0_audio1_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("i2s2", "tegra30-i2s.2", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("i2s3", "tegra30-i2s.3", NULL, 101, 0x3bc, 26000000, mux_pllaout0_audio3_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("i2s4", "tegra30-i2s.4", NULL, 102, 0x3c0, 26000000, mux_pllaout0_audio4_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("spdif_out", "tegra30-spdif", "spdif_out", 10, 0x108, 100000000, mux_pllaout0_audio_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("spdif_in", "tegra30-spdif", "spdif_in", 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("pwm", "pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_clk32_clkm, MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("d_audio", "tegra30-ahub", "d_audio", 106, 0x3d0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), + PERIPH_CLK("dam0", "tegra30-dam.0", NULL, 108, 0x3d8, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), + PERIPH_CLK("dam1", "tegra30-dam.1", NULL, 109, 0x3dc, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), + PERIPH_CLK("dam2", "tegra30-dam.2", NULL, 110, 0x3e0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), + PERIPH_CLK("hda", "tegra30-hda", "hda", 125, 0x428, 108000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("hda2codec_2x", "tegra30-hda", "hda2codec", 111, 0x3e4, 48000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("hda2hdmi", "tegra30-hda", "hda2hdmi", 128, 0, 48000000, mux_clk_m, 0), + PERIPH_CLK("sbc1", "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sbc2", "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sbc3", "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sbc4", "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sbc5", "spi_tegra.4", NULL, 104, 0x3c8, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sbc6", "spi_tegra.5", NULL, 105, 0x3cc, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sata_oob", "tegra_sata_oob", NULL, 123, 0x420, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sata", "tegra_sata", NULL, 124, 0x424, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("sata_cold", "tegra_sata_cold", NULL, 129, 0, 48000000, mux_clk_m, 0), + PERIPH_CLK_EX("ndflash", "tegra_nand", NULL, 13, 0x160, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71, &tegra_nand_clk_ops), + PERIPH_CLK("ndspeed", "tegra_nand_speed", NULL, 80, 0x3f8, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("vfir", "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("sdmmc1", "sdhci-tegra.0", NULL, 14, 0x150, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ + PERIPH_CLK("sdmmc2", "sdhci-tegra.1", NULL, 9, 0x154, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ + PERIPH_CLK("sdmmc3", "sdhci-tegra.2", NULL, 69, 0x1bc, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ + PERIPH_CLK("sdmmc4", "sdhci-tegra.3", NULL, 15, 0x164, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ + PERIPH_CLK("vcp", "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0), + PERIPH_CLK("bsea", "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0), + PERIPH_CLK("bsev", "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0), + PERIPH_CLK("vde", "vde", NULL, 61, 0x1c8, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT), + PERIPH_CLK("csite", "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* max rate ??? */ + PERIPH_CLK("la", "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), + PERIPH_CLK("owr", "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("nor", "nor", NULL, 42, 0x1d0, 127000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* requires min voltage */ + PERIPH_CLK("mipi", "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), /* scales with voltage */ + PERIPH_CLK("i2c1", "tegra-i2c.0", NULL, 12, 0x124, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), + PERIPH_CLK("i2c2", "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), + PERIPH_CLK("i2c3", "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), + PERIPH_CLK("i2c4", "tegra-i2c.3", NULL, 103, 0x3c4, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), + PERIPH_CLK("i2c5", "tegra-i2c.4", NULL, 47, 0x128, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), + PERIPH_CLK("uarta", "tegra_uart.0", NULL, 6, 0x178, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uartb", "tegra_uart.1", NULL, 7, 0x17c, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uartc", "tegra_uart.2", NULL, 55, 0x1a0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uartd", "tegra_uart.3", NULL, 65, 0x1c0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uarte", "tegra_uart.4", NULL, 66, 0x1c4, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uarta_dbg", "serial8250.0", "uarta", 6, 0x178, 800000000, mux_pllp_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uartb_dbg", "serial8250.0", "uartb", 7, 0x17c, 800000000, mux_pllp_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uartc_dbg", "serial8250.0", "uartc", 55, 0x1a0, 800000000, mux_pllp_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uartd_dbg", "serial8250.0", "uartd", 65, 0x1c0, 800000000, mux_pllp_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK("uarte_dbg", "serial8250.0", "uarte", 66, 0x1c4, 800000000, mux_pllp_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), + PERIPH_CLK_EX("vi", "tegra_camera", "vi", 20, 0x148, 425000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT, &tegra_vi_clk_ops), + PERIPH_CLK("3d", "3d", NULL, 24, 0x158, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET), + PERIPH_CLK("3d2", "3d2", NULL, 98, 0x3b0, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET), + PERIPH_CLK("2d", "2d", NULL, 21, 0x15c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE), + PERIPH_CLK("vi_sensor", "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET), + PERIPH_CLK("epp", "epp", NULL, 19, 0x16c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT), + PERIPH_CLK("mpe", "mpe", NULL, 60, 0x170, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT), + PERIPH_CLK("host1x", "host1x", NULL, 28, 0x180, 260000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT), + PERIPH_CLK("cve", "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ + PERIPH_CLK("tvo", "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ + PERIPH_CLK_EX("dtv", "dtv", NULL, 79, 0x1dc, 250000000, mux_clk_m, 0, &tegra_dtv_clk_ops), + PERIPH_CLK("hdmi", "hdmi", NULL, 51, 0x18c, 148500000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8 | DIV_U71), + PERIPH_CLK("tvdac", "tvdac", NULL, 53, 0x194, 220000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ + PERIPH_CLK("disp1", "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8), + PERIPH_CLK("disp2", "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8), + PERIPH_CLK("usbd", "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ + PERIPH_CLK("usb2", "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ + PERIPH_CLK("usb3", "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ + PERIPH_CLK("dsia", "tegradc.0", "dsia", 48, 0, 500000000, mux_plld_out0, 0), + PERIPH_CLK_EX("dsib", "tegradc.1", "dsib", 82, 0xd0, 500000000, mux_plld_out0_plld2_out0, MUX | PLLD, &tegra_dsib_clk_ops), + PERIPH_CLK("csi", "tegra_camera", "csi", 52, 0, 102000000, mux_pllp_out3, 0), + PERIPH_CLK("isp", "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0), /* same frequency as VI */ + PERIPH_CLK("csus", "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET), + + PERIPH_CLK("tsensor", "tegra-tsensor", NULL, 100, 0x3b8, 216000000, mux_pllp_pllc_clkm_clk32, MUX | DIV_U71), + PERIPH_CLK("actmon", "actmon", NULL, 119, 0x3e8, 216000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71), + PERIPH_CLK("extern1", "extern1", NULL, 120, 0x3ec, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71), + PERIPH_CLK("extern2", "extern2", NULL, 121, 0x3f0, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71), + PERIPH_CLK("extern3", "extern3", NULL, 122, 0x3f4, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71), + PERIPH_CLK("i2cslow", "i2cslow", NULL, 81, 0x3fc, 26000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71 | PERIPH_ON_APB), + PERIPH_CLK("pcie", "tegra-pcie", "pcie", 70, 0, 250000000, mux_clk_m, 0), + PERIPH_CLK("afi", "tegra-pcie", "afi", 72, 0, 250000000, mux_clk_m, 0), + PERIPH_CLK("se", "se", NULL, 127, 0x42c, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT), +}; + +#define CLK_DUPLICATE(_name, _dev, _con) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + } + +/* Some clocks may be used by different drivers depending on the board + * configuration. List those here to register them twice in the clock lookup + * table under two names. + */ +struct clk_duplicate tegra_clk_duplicates[] = { + CLK_DUPLICATE("usbd", "utmip-pad", NULL), + CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), + CLK_DUPLICATE("usbd", "tegra-otg", NULL), + CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"), + CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"), + CLK_DUPLICATE("dsib", "tegradc.0", "dsib"), + CLK_DUPLICATE("dsia", "tegradc.1", "dsia"), + CLK_DUPLICATE("pwm", "tegra_pwm.0", NULL), + CLK_DUPLICATE("pwm", "tegra_pwm.1", NULL), + CLK_DUPLICATE("pwm", "tegra_pwm.2", NULL), + CLK_DUPLICATE("pwm", "tegra_pwm.3", NULL), + CLK_DUPLICATE("bsev", "tegra-avp", "bsev"), + CLK_DUPLICATE("bsev", "nvavp", "bsev"), + CLK_DUPLICATE("vde", "tegra-aes", "vde"), + CLK_DUPLICATE("bsea", "tegra-aes", "bsea"), + CLK_DUPLICATE("bsea", "nvavp", "bsea"), + CLK_DUPLICATE("cml1", "tegra_sata_cml", NULL), + CLK_DUPLICATE("cml0", "tegra_pcie", "cml"), + CLK_DUPLICATE("pciex", "tegra_pcie", "pciex"), + CLK_DUPLICATE("i2c1", "tegra-i2c-slave.0", NULL), + CLK_DUPLICATE("i2c2", "tegra-i2c-slave.1", NULL), + CLK_DUPLICATE("i2c3", "tegra-i2c-slave.2", NULL), + CLK_DUPLICATE("i2c4", "tegra-i2c-slave.3", NULL), + CLK_DUPLICATE("i2c5", "tegra-i2c-slave.4", NULL), + CLK_DUPLICATE("sbc1", "spi_slave_tegra.0", NULL), + CLK_DUPLICATE("sbc2", "spi_slave_tegra.1", NULL), + CLK_DUPLICATE("sbc3", "spi_slave_tegra.2", NULL), + CLK_DUPLICATE("sbc4", "spi_slave_tegra.3", NULL), + CLK_DUPLICATE("sbc5", "spi_slave_tegra.4", NULL), + CLK_DUPLICATE("sbc6", "spi_slave_tegra.5", NULL), + CLK_DUPLICATE("twd", "smp_twd", NULL), + CLK_DUPLICATE("vcp", "nvavp", "vcp"), +}; + +struct clk *tegra_ptr_clks[] = { + &tegra_clk_32k, + &tegra_clk_m, + &tegra_clk_m_div2, + &tegra_clk_m_div4, + &tegra_pll_ref, + &tegra_pll_m, + &tegra_pll_m_out1, + &tegra_pll_c, + &tegra_pll_c_out1, + &tegra_pll_p, + &tegra_pll_p_out1, + &tegra_pll_p_out2, + &tegra_pll_p_out3, + &tegra_pll_p_out4, + &tegra_pll_a, + &tegra_pll_a_out0, + &tegra_pll_d, + &tegra_pll_d_out0, + &tegra_pll_d2, + &tegra_pll_d2_out0, + &tegra_pll_u, + &tegra_pll_x, + &tegra_pll_x_out0, + &tegra_pll_e, + &tegra_clk_cclk_g, + &tegra_cml0_clk, + &tegra_cml1_clk, + &tegra_pciex_clk, + &tegra_clk_sclk, + &tegra_clk_blink, + &tegra30_clk_twd, +}; + + +static void tegra30_init_one_clock(struct clk *c) +{ + clk_init(c); + INIT_LIST_HEAD(&c->shared_bus_list); + if (!c->lookup.dev_id && !c->lookup.con_id) + c->lookup.con_id = c->name; + c->lookup.clk = c; + clkdev_add(&c->lookup); +} + +void __init tegra30_init_clocks(void) +{ + int i; + struct clk *c; + + for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) + tegra30_init_one_clock(tegra_ptr_clks[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) + tegra30_init_one_clock(&tegra_list_clks[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { + c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); + if (!c) { + pr_err("%s: Unknown duplicate clock %s\n", __func__, + tegra_clk_duplicates[i].name); + continue; + } + + tegra_clk_duplicates[i].lookup.clk = c; + clkdev_add(&tegra_clk_duplicates[i].lookup); + } + + for (i = 0; i < ARRAY_SIZE(tegra_sync_source_list); i++) + tegra30_init_one_clock(&tegra_sync_source_list[i]); + for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_list); i++) + tegra30_init_one_clock(&tegra_clk_audio_list[i]); + for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_2x_list); i++) + tegra30_init_one_clock(&tegra_clk_audio_2x_list[i]); + + init_clk_out_mux(); + for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) + tegra30_init_one_clock(&tegra_clk_out_list[i]); + +} -- cgit v1.2.3 From 7ff43eeabd19238dc5ee528f818f3d0e1ddd9f68 Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Mon, 9 Jan 2012 05:35:13 +0000 Subject: ARM: tegra: enable tegra30 clock framework Add init calls for clocks on tegra30. Signed-off-by: Peter De Schrijver Tested-by: Stephen Warren Acked-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/Makefile | 1 + arch/arm/mach-tegra/clock.h | 1 + arch/arm/mach-tegra/common.c | 1 + 3 files changed, 3 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index e120ff54f663..b2ac1089651b 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += pinmux-tegra20-tables.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += pinmux-tegra30-tables.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += board-dt-tegra30.o +obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks.o obj-$(CONFIG_SMP) += platsmp.o localtimer.o headsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o obj-$(CONFIG_TEGRA_SYSTEM_DMA) += dma.o diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h index 18f8b857361d..bc300657deba 100644 --- a/arch/arm/mach-tegra/clock.h +++ b/arch/arm/mach-tegra/clock.h @@ -160,6 +160,7 @@ struct tegra_clk_init_table { }; void tegra2_init_clocks(void); +void tegra30_init_clocks(void); void clk_init(struct clk *clk); struct clk *tegra_get_clock_by_name(const char *name); int clk_reparent(struct clk *c, struct clk *parent); diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index a2eb90169aed..029558114236 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -105,6 +105,7 @@ void __init tegra20_init_early(void) #ifdef CONFIG_ARCH_TEGRA_3x_SOC void __init tegra30_init_early(void) { + tegra30_init_clocks(); tegra_init_cache(0x441, 0x551); } #endif -- cgit v1.2.3 From f7223d3d1ba0e49423d0d5f7f60723b0cb42e621 Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Tue, 10 Jan 2012 06:22:18 +0000 Subject: ARM: tegra: initialize basic system clocks Initialize basic system clocks and provide a auxdata table to allow some peripheral drivers to find their clocks. Signed-off-by: Peter De Schrijver Tested-by: Stephen Warren Acked-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/board-dt-tegra30.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c index 3c197e2440b7..b4124b12a779 100644 --- a/arch/arm/mach-tegra/board-dt-tegra30.c +++ b/arch/arm/mach-tegra/board-dt-tegra30.c @@ -34,16 +34,38 @@ #include #include "board.h" +#include "clock.h" static struct of_device_id tegra_dt_match_table[] __initdata = { { .compatible = "simple-bus", }, {} }; +struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = { + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000000, "sdhci-tegra.0", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000200, "sdhci-tegra.1", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000400, "sdhci-tegra.2", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000600, "sdhci-tegra.3", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C000, "tegra-i2c.0", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C400, "tegra-i2c.1", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C500, "tegra-i2c.2", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C700, "tegra-i2c.3", NULL), + OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000D000, "tegra-i2c.4", NULL), + {} +}; + +static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = { + /* name parent rate enabled */ + { "uartd", "pll_p", 408000000, true }, + { NULL, NULL, 0, 0}, +}; + static void __init tegra30_dt_init(void) { + tegra_clk_init_from_table(tegra_dt_clk_init_table); + of_platform_populate(NULL, tegra_dt_match_table, - NULL, NULL); + tegra30_auxdata_lookup, NULL); } static const char *tegra30_dt_board_compat[] = { -- cgit v1.2.3 From 364c7c3f99c7ab79f6134ff0c55251d7ef77db8f Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Thu, 26 Jan 2012 18:22:01 +0200 Subject: ARM: tegra: definitions for flow controller Introduce some definitions for the tegra flow contoller. This will be used by the code which controls entering and leaving LP3. Signed-off-by: Peter De Schrijver Acked-by: Stephen Warren Tested-by: Stephen Warren Acked-by: Colin Cross Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/flowctrl.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 arch/arm/mach-tegra/flowctrl.h (limited to 'arch') diff --git a/arch/arm/mach-tegra/flowctrl.h b/arch/arm/mach-tegra/flowctrl.h new file mode 100644 index 000000000000..74c6efbe52fa --- /dev/null +++ b/arch/arm/mach-tegra/flowctrl.h @@ -0,0 +1,37 @@ +/* + * arch/arm/mach-tegra/flowctrl.h + * + * functions and macros to control the flowcontroller + * + * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef __MACH_TEGRA_FLOWCTRL_H +#define __MACH_TEGRA_FLOWCTRL_H + +#define FLOW_CTRL_HALT_CPU0_EVENTS 0x0 +#define FLOW_CTRL_WAITEVENT (2 << 29) +#define FLOW_CTRL_WAIT_FOR_INTERRUPT (4 << 29) +#define FLOW_CTRL_JTAG_RESUME (1 << 28) +#define FLOW_CTRL_HALT_CPU_IRQ (1 << 10) +#define FLOW_CTRL_HALT_CPU_FIQ (1 << 8) +#define FLOW_CTRL_CPU0_CSR 0x8 +#define FLOW_CTRL_CSR_INTR_FLAG (1 << 15) +#define FLOW_CTRL_CSR_EVENT_FLAG (1 << 14) +#define FLOW_CTRL_CSR_ENABLE (1 << 0) +#define FLOW_CTRL_HALT_CPU1_EVENTS 0x14 +#define FLOW_CTRL_CPU1_CSR 0x18 + +#endif -- cgit v1.2.3 From c76fcc8af16fafc4a349192f8f08a5f7e6d7e706 Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Thu, 26 Jan 2012 18:22:02 +0200 Subject: ARM: tegra: assembler code for LP3 Configure the flow controller for clockgating and enter WFI Based on work by: Colin Cross Gary King Signed-off-by: Peter De Schrijver Acked-by: Stephen Warren Tested-by: Stephen Warren Acked-by: Colin Cross Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/sleep.S | 91 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 arch/arm/mach-tegra/sleep.S (limited to 'arch') diff --git a/arch/arm/mach-tegra/sleep.S b/arch/arm/mach-tegra/sleep.S new file mode 100644 index 000000000000..8f9fde161c34 --- /dev/null +++ b/arch/arm/mach-tegra/sleep.S @@ -0,0 +1,91 @@ +/* + * arch/arm/mach-tegra/sleep.S + * + * Copyright (c) 2010-2011, NVIDIA Corporation. + * Copyright (c) 2011, Google, Inc. + * + * Author: Colin Cross + * Gary King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include +#include +#include + +#include "flowctrl.h" + +#define TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \ + + IO_PPSB_VIRT) + +/* returns the offset of the flow controller halt register for a cpu */ +.macro cpu_to_halt_reg rd, rcpu + cmp \rcpu, #0 + subne \rd, \rcpu, #1 + movne \rd, \rd, lsl #3 + addne \rd, \rd, #0x14 + moveq \rd, #0 +.endm + +/* returns the offset of the flow controller csr register for a cpu */ +.macro cpu_to_csr_reg rd, rcpu + cmp \rcpu, #0 + subne \rd, \rcpu, #1 + movne \rd, \rd, lsl #3 + addne \rd, \rd, #0x18 + moveq \rd, #8 +.endm + +/* returns the ID of the current processor */ +.macro cpu_id, rd + mrc p15, 0, \rd, c0, c0, 5 + and \rd, \rd, #0xF +.endm + +/* loads a 32-bit value into a register without a data access */ +.macro mov32, reg, val + movw \reg, #:lower16:\val + movt \reg, #:upper16:\val +.endm + +/* + * tegra_cpu_wfi + * + * puts current CPU in clock-gated wfi using the flow controller + * + * corrupts r0-r3 + * must be called with MMU on + */ + +ENTRY(tegra_cpu_wfi) + cpu_id r0 + cpu_to_halt_reg r1, r0 + cpu_to_csr_reg r2, r0 + mov32 r0, TEGRA_FLOW_CTRL_VIRT + mov r3, #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG + str r3, [r0, r2] @ clear event & interrupt status + mov r3, #FLOW_CTRL_WAIT_FOR_INTERRUPT | FLOW_CTRL_JTAG_RESUME + str r3, [r0, r1] @ put flow controller in wait irq mode + dsb + wfi + mov r3, #0 + str r3, [r0, r1] @ clear flow controller halt status + mov r3, #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG + str r3, [r0, r2] @ clear event & interrupt status + dsb + mov pc, lr +ENDPROC(tegra_cpu_wfi) + -- cgit v1.2.3 From 22b8b85d902b0ff4dffb281303ea5bb0369c17aa Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Thu, 26 Jan 2012 18:22:03 +0200 Subject: ARM: tegra: cpuidle driver for tegra CPUidle driver for tegra. In this version only LP3 (clockgating) is supported. Based on work by: Colin Cross Gary King Signed-off-by: Peter De Schrijver Acked-by: Stephen Warren Tested-by: Stephen Warren Acked-by: Colin Cross Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/Makefile | 2 + arch/arm/mach-tegra/cpuidle.c | 107 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 109 insertions(+) create mode 100644 arch/arm/mach-tegra/cpuidle.c (limited to 'arch') diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index b2ac1089651b..0a5bc47afbf5 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -7,6 +7,8 @@ obj-y += clock.o obj-y += timer.o obj-y += pinmux.o obj-y += fuse.o +obj-y += cpuidle.o +obj-y += sleep.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += powergate.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o diff --git a/arch/arm/mach-tegra/cpuidle.c b/arch/arm/mach-tegra/cpuidle.c new file mode 100644 index 000000000000..d83a8c0296f5 --- /dev/null +++ b/arch/arm/mach-tegra/cpuidle.c @@ -0,0 +1,107 @@ +/* + * arch/arm/mach-tegra/cpuidle.c + * + * CPU idle driver for Tegra CPUs + * + * Copyright (c) 2010-2012, NVIDIA Corporation. + * Copyright (c) 2011 Google, Inc. + * Author: Colin Cross + * Gary King + * + * Rework for 3.3 by Peter De Schrijver + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#include +#include +#include +#include +#include + +#include + +extern void tegra_cpu_wfi(void); + +static int tegra_idle_enter_lp3(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index); + +struct cpuidle_driver tegra_idle_driver = { + .name = "tegra_idle", + .owner = THIS_MODULE, + .state_count = 1, + .states = { + [0] = { + .enter = tegra_idle_enter_lp3, + .exit_latency = 10, + .target_residency = 10, + .power_usage = 600, + .flags = CPUIDLE_FLAG_TIME_VALID, + .name = "LP3", + .desc = "CPU flow-controlled", + }, + }, +}; + +static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device); + +static int tegra_idle_enter_lp3(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index) +{ + ktime_t enter, exit; + s64 us; + + local_irq_disable(); + local_fiq_disable(); + + enter = ktime_get(); + + tegra_cpu_wfi(); + + exit = ktime_sub(ktime_get(), enter); + us = ktime_to_us(exit); + + local_fiq_enable(); + local_irq_enable(); + + dev->last_residency = us; + + return index; +} + +static int __init tegra_cpuidle_init(void) +{ + int ret; + unsigned int cpu; + struct cpuidle_device *dev; + struct cpuidle_driver *drv = &tegra_idle_driver; + + ret = cpuidle_register_driver(&tegra_idle_driver); + if (ret) { + pr_err("CPUidle driver registration failed\n"); + return ret; + } + + for_each_possible_cpu(cpu) { + dev = &per_cpu(tegra_idle_device, cpu); + dev->cpu = cpu; + + dev->state_count = drv->state_count; + ret = cpuidle_register_device(dev); + if (ret) { + pr_err("CPU%u: CPUidle device registration failed\n", + cpu); + return ret; + } + } + return 0; +} +device_initcall(tegra_cpuidle_init); -- cgit v1.2.3 From a7bf61620831c5578e434429bc7fa0fd0219c40c Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 12 Dec 2011 15:29:08 -0600 Subject: ARM: timer-sp: add sched_clock support Add a sched_clock support for the sp804 timer. The clocksource timer can optionally initialize itself as sched_clock timer. Signed-off-by: Rob Herring --- arch/arm/Kconfig | 1 + arch/arm/common/timer-sp.c | 17 ++++++++++++++++- arch/arm/include/asm/hardware/timer-sp.h | 15 ++++++++++++++- 3 files changed, 31 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index a48aecc17eac..448802296cb3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1127,6 +1127,7 @@ config PLAT_VERSATILE config ARM_TIMER_SP804 bool select CLKSRC_MMIO + select HAVE_SCHED_CLOCK source arch/arm/mm/Kconfig diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index 8794a34eae61..df13a3ffff35 100644 --- a/arch/arm/common/timer-sp.c +++ b/arch/arm/common/timer-sp.c @@ -26,6 +26,7 @@ #include #include +#include #include static long __init sp804_get_clock_rate(const char *name) @@ -67,7 +68,16 @@ static long __init sp804_get_clock_rate(const char *name) return rate; } -void __init sp804_clocksource_init(void __iomem *base, const char *name) +static void __iomem *sched_clock_base; + +static u32 sp804_read(void) +{ + return ~readl_relaxed(sched_clock_base + TIMER_VALUE); +} + +void __init __sp804_clocksource_and_sched_clock_init(void __iomem *base, + const char *name, + int use_sched_clock) { long rate = sp804_get_clock_rate(name); @@ -83,6 +93,11 @@ void __init sp804_clocksource_init(void __iomem *base, const char *name) clocksource_mmio_init(base + TIMER_VALUE, name, rate, 200, 32, clocksource_mmio_readl_down); + + if (use_sched_clock) { + sched_clock_base = base; + setup_sched_clock(sp804_read, 32, rate); + } } diff --git a/arch/arm/include/asm/hardware/timer-sp.h b/arch/arm/include/asm/hardware/timer-sp.h index 4384d81eee79..2dd9d3f83f29 100644 --- a/arch/arm/include/asm/hardware/timer-sp.h +++ b/arch/arm/include/asm/hardware/timer-sp.h @@ -1,2 +1,15 @@ -void sp804_clocksource_init(void __iomem *, const char *); +void __sp804_clocksource_and_sched_clock_init(void __iomem *, + const char *, int); + +static inline void sp804_clocksource_init(void __iomem *base, const char *name) +{ + __sp804_clocksource_and_sched_clock_init(base, name, 0); +} + +static inline void sp804_clocksource_and_sched_clock_init(void __iomem *base, + const char *name) +{ + __sp804_clocksource_and_sched_clock_init(base, name, 1); +} + void sp804_clockevents_init(void __iomem *, unsigned int, const char *); -- cgit v1.2.3 From f3b7cd2a9e3de578a462bb507279870dd41e032e Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Mon, 16 Jan 2012 08:06:09 -0600 Subject: ARM: highbank: enable sp804 based sched_clock Initialize sched_clock to use the sp804 timer. Signed-off-by: Rob Herring --- arch/arm/mach-highbank/highbank.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index 8394d512a402..a96183e73fad 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -109,7 +109,7 @@ static void __init highbank_timer_init(void) highbank_clocks_init(); - sp804_clocksource_init(timer_base + 0x20, "timer1"); + sp804_clocksource_and_sched_clock_init(timer_base + 0x20, "timer1"); sp804_clockevents_init(timer_base, irq, "timer0"); } -- cgit v1.2.3 From b024e33682c8e56cc8e869245dabd1b91ffe00ea Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Fri, 10 Feb 2012 09:43:00 -0600 Subject: ARM: highbank: remove unused memory.h memory.h is empty and no longer needed to build, so remove it. Signed-off-by: Rob Herring --- arch/arm/mach-highbank/include/mach/memory.h | 1 - 1 file changed, 1 deletion(-) delete mode 100644 arch/arm/mach-highbank/include/mach/memory.h (limited to 'arch') diff --git a/arch/arm/mach-highbank/include/mach/memory.h b/arch/arm/mach-highbank/include/mach/memory.h deleted file mode 100644 index 40a8c178f10d..000000000000 --- a/arch/arm/mach-highbank/include/mach/memory.h +++ /dev/null @@ -1 +0,0 @@ -/* empty */ -- cgit v1.2.3 From ed8d8aa1e674b5b03fceae56a81cccbcf60ec95e Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 12 Jan 2012 10:41:35 +0900 Subject: ARM: S3C64XX: Gate some more clocks by default Gate the AC'97 and CF clocks by default. The drivers will enable them required. Signed-off-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/clock.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c index 31bb27dc4aeb..b58274f80cf9 100644 --- a/arch/arm/mach-s3c64xx/clock.c +++ b/arch/arm/mach-s3c64xx/clock.c @@ -201,6 +201,15 @@ static struct clk init_clocks_off[] = { .parent = &clk_48m, .enable = s3c64xx_sclk_ctrl, .ctrlbit = S3C_CLKCON_SCLK_MMC2_48, + }, { + .name = "ac97", + .parent = &clk_p, + .ctrlbit = S3C_CLKCON_PCLK_AC97, + }, { + .name = "cfcon", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_IHOST, }, { .name = "dma0", .parent = &clk_h, @@ -284,16 +293,7 @@ static struct clk init_clocks[] = { .name = "watchdog", .parent = &clk_p, .ctrlbit = S3C_CLKCON_PCLK_WDT, - }, { - .name = "ac97", - .parent = &clk_p, - .ctrlbit = S3C_CLKCON_PCLK_AC97, - }, { - .name = "cfcon", - .parent = &clk_h, - .enable = s3c64xx_hclk_ctrl, - .ctrlbit = S3C_CLKCON_HCLK_IHOST, - } + }, }; static struct clk clk_hsmmc0 = { -- cgit v1.2.3 From 561ab530bf81c86df1c88d6c8b75718ef1d3b8a6 Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Tue, 27 Dec 2011 17:16:44 +0900 Subject: ARM: SAMSUNG: add G2D to plat-s5p and mach-exynos G2D is a 2D graphics accelerator engine present in the s5p family of Samsung SoCs. It is capable of bitblt and raster operations on images having dimensions of up to 8000x8000. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/include/mach/map.h | 3 +++ arch/arm/plat-s5p/Kconfig | 5 +++++ arch/arm/plat-samsung/devs.c | 28 ++++++++++++++++++++++++++++ arch/arm/plat-samsung/include/plat/devs.h | 1 + 4 files changed, 37 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index c754a22a2bb3..7df9e7456814 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -31,6 +31,8 @@ #define EXYNOS4_PA_FIMC2 0x11820000 #define EXYNOS4_PA_FIMC3 0x11830000 +#define EXYNOS4_PA_G2D 0x12800000 + #define EXYNOS4_PA_I2S0 0x03830000 #define EXYNOS4_PA_I2S1 0xE3100000 #define EXYNOS4_PA_I2S2 0xE2A00000 @@ -162,6 +164,7 @@ #define S5P_PA_FIMC1 EXYNOS4_PA_FIMC1 #define S5P_PA_FIMC2 EXYNOS4_PA_FIMC2 #define S5P_PA_FIMC3 EXYNOS4_PA_FIMC3 +#define S5P_PA_G2D EXYNOS4_PA_G2D #define S5P_PA_FIMD0 EXYNOS4_PA_FIMD0 #define S5P_PA_HDMI EXYNOS4_PA_HDMI #define S5P_PA_IIC_HDMIPHY EXYNOS4_PA_IIC_HDMIPHY diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig index 8167ce66188c..e7fec7820a18 100644 --- a/arch/arm/plat-s5p/Kconfig +++ b/arch/arm/plat-s5p/Kconfig @@ -80,6 +80,11 @@ config S5P_DEV_FIMC3 help Compile in platform device definitions for FIMC controller 3 +config S5P_DEV_G2D + bool + help + Compile in platform device definitions for G2D device + config S5P_DEV_FIMD0 bool help diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 32a6e394db24..145580a4a62c 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -267,6 +267,34 @@ struct platform_device s5p_device_fimc3 = { }; #endif /* CONFIG_S5P_DEV_FIMC3 */ +/* G2D */ + +#ifdef CONFIG_S5P_DEV_G2D +static struct resource s5p_g2d_resource[] = { + [0] = { + .start = S5P_PA_G2D, + .end = S5P_PA_G2D + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_2D, + .end = IRQ_2D, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device s5p_device_g2d = { + .name = "s5p-g2d", + .id = 0, + .num_resources = ARRAY_SIZE(s5p_g2d_resource), + .resource = s5p_g2d_resource, + .dev = { + .dma_mask = &samsung_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; +#endif /* CONFIG_S5P_DEV_G2D */ + /* FIMD0 */ #ifdef CONFIG_S5P_DEV_FIMD0 diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h index 4214ea0ff8fe..bb4584815037 100644 --- a/arch/arm/plat-samsung/include/plat/devs.h +++ b/arch/arm/plat-samsung/include/plat/devs.h @@ -79,6 +79,7 @@ extern struct platform_device s5p_device_fimc1; extern struct platform_device s5p_device_fimc2; extern struct platform_device s5p_device_fimc3; extern struct platform_device s5p_device_fimc_md; +extern struct platform_device s5p_device_g2d; extern struct platform_device s5p_device_fimd0; extern struct platform_device s5p_device_hdmi; extern struct platform_device s5p_device_i2c_hdmiphy; -- cgit v1.2.3 From 23747145070779682ccdf948b786adaf88b2a89e Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Mon, 26 Dec 2011 20:29:31 +0900 Subject: ARM: SAMSUNG: Add a callback 'notify_after' for PWM backlight control The callback 'notify_after' was added to struct platform_pwm_backlight_data provided by PWM backlight driver. Therefore, this patch adds a callback 'notify_after' which can be called after pwm_enable, pwm_disable and pwm_config. Signed-off-by: Jingoo Han Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/dev-backlight.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch') diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c index a976c023b286..2254920a02cf 100644 --- a/arch/arm/plat-samsung/dev-backlight.c +++ b/arch/arm/plat-samsung/dev-backlight.c @@ -115,6 +115,8 @@ void samsung_bl_set(struct samsung_bl_gpio_info *gpio_info, samsung_bl_data->init = bl_data->init; if (bl_data->notify) samsung_bl_data->notify = bl_data->notify; + if (bl_data->notify_after) + samsung_bl_data->notify_after = bl_data->notify_after; if (bl_data->exit) samsung_bl_data->exit = bl_data->exit; if (bl_data->check_fb) -- cgit v1.2.3 From 90ca2979ed9d69d8b1b729cb2e9d8e9874fad5f5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 30 Dec 2011 09:41:56 +0900 Subject: ARM: S3C64XX: Reduce residency requirement for cpuidle WFI mode Entering and leaving WFI is really cheap so there's no reason to have much of a residency requirement for the state. Lower it to 1ms. Signed-off-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/cpuidle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-s3c64xx/cpuidle.c b/arch/arm/mach-s3c64xx/cpuidle.c index 625d2c7b4540..179460f38db7 100644 --- a/arch/arm/mach-s3c64xx/cpuidle.c +++ b/arch/arm/mach-s3c64xx/cpuidle.c @@ -55,7 +55,7 @@ static struct cpuidle_state s3c64xx_cpuidle_set[] = { [0] = { .enter = s3c64xx_enter_idle, .exit_latency = 1, - .target_residency = 100000, + .target_residency = 1, .flags = CPUIDLE_FLAG_TIME_VALID, .name = "IDLE", .desc = "System active, ARM gated", -- cgit v1.2.3 From 8942ad89a059f9854ddf7223ca6e32869d7d9059 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 27 Jan 2012 14:42:19 +0900 Subject: ARM: S3C64XX: Define some additional always off clocks Add entries to clocks_off for some additional clocks which are not currently used by any mainline drivers. They default on at power up but are never actually used so If these blocks are actually supported some of these bindings would need to be redone properly, for example hooking up to the muxes that use them, but that can be done incrementally. Signed-off-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/clock.c | 101 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c index b58274f80cf9..63f2c8aa119d 100644 --- a/arch/arm/mach-s3c64xx/clock.c +++ b/arch/arm/mach-s3c64xx/clock.c @@ -220,6 +220,107 @@ static struct clk init_clocks_off[] = { .parent = &clk_h, .enable = s3c64xx_hclk_ctrl, .ctrlbit = S3C_CLKCON_HCLK_DMA1, + }, { + .name = "3dse", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_3DSE, + }, { + .name = "hclk_secur", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_SECUR, + }, { + .name = "sdma1", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_SDMA1, + }, { + .name = "sdma0", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_SDMA0, + }, { + .name = "hclk_jpeg", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_JPEG, + }, { + .name = "camif", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_CAMIF, + }, { + .name = "hclk_scaler", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_SCALER, + }, { + .name = "2d", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_2D, + }, { + .name = "tv", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_TV, + }, { + .name = "post0", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_POST0, + }, { + .name = "rot", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_ROT, + }, { + .name = "hclk_mfc", + .parent = &clk_h, + .enable = s3c64xx_hclk_ctrl, + .ctrlbit = S3C_CLKCON_HCLK_MFC, + }, { + .name = "pclk_mfc", + .parent = &clk_p, + .enable = s3c64xx_pclk_ctrl, + .ctrlbit = S3C_CLKCON_PCLK_MFC, + }, { + .name = "dac27", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_DAC27, + }, { + .name = "tv27", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_TV27, + }, { + .name = "scaler27", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_SCALER27, + }, { + .name = "sclk_scaler", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_SCALER, + }, { + .name = "post0_27", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_POST0_27, + }, { + .name = "secur", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_SECUR, + }, { + .name = "sclk_mfc", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_MFC, + }, { + .name = "cam", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_CAM, + }, { + .name = "sclk_jpeg", + .enable = s3c64xx_sclk_ctrl, + .ctrlbit = S3C_CLKCON_SCLK_JPEG, }, }; -- cgit v1.2.3 From 0cdf3affd3ddf4ff1a88e32b89bc629d569793f3 Mon Sep 17 00:00:00 2001 From: Minho Ban Date: Fri, 20 Jan 2012 11:03:07 +0900 Subject: ARM: SAMSUNG: use spin_lock_irqsave() in clk_{enable,disable} The clk_enable()and clk_disable() can be used process and ISR either. And actually it is used for real product and other platforms use it now. So spin_lock_irqsave() should be used instead. Signed-off-by: Minho Ban Signed-off-by: Jaecheol Lee Signed-off-by: Sunyoung Kang Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/clock.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c index 10f71179071f..65c5eca475e7 100644 --- a/arch/arm/plat-samsung/clock.c +++ b/arch/arm/plat-samsung/clock.c @@ -84,31 +84,35 @@ static int clk_null_enable(struct clk *clk, int enable) int clk_enable(struct clk *clk) { + unsigned long flags; + if (IS_ERR(clk) || clk == NULL) return -EINVAL; clk_enable(clk->parent); - spin_lock(&clocks_lock); + spin_lock_irqsave(&clocks_lock, flags); if ((clk->usage++) == 0) (clk->enable)(clk, 1); - spin_unlock(&clocks_lock); + spin_unlock_irqrestore(&clocks_lock, flags); return 0; } void clk_disable(struct clk *clk) { + unsigned long flags; + if (IS_ERR(clk) || clk == NULL) return; - spin_lock(&clocks_lock); + spin_lock_irqsave(&clocks_lock, flags); if ((--clk->usage) == 0) (clk->enable)(clk, 0); - spin_unlock(&clocks_lock); + spin_unlock_irqrestore(&clocks_lock, flags); clk_disable(clk->parent); } -- cgit v1.2.3 From 64092d8f34774429a2519622e5cf0ca63b1ba517 Mon Sep 17 00:00:00 2001 From: Peter De Schrijver Date: Thu, 23 Feb 2012 18:21:52 +0200 Subject: ARM: tegra: Avoid compiling cpuidle code when not configured No need to compile cpuidle.c and sleep.S if cpuidle isn't configured in the kernel. Signed-off-by: Peter De Schrijver Acked-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index 0a5bc47afbf5..fc4ebe35f484 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -7,8 +7,8 @@ obj-y += clock.o obj-y += timer.o obj-y += pinmux.o obj-y += fuse.o -obj-y += cpuidle.o -obj-y += sleep.o +obj-$(CONFIG_CPU_IDLE) += cpuidle.o +obj-$(CONFIG_CPU_IDLE) += sleep.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += powergate.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o -- cgit v1.2.3 From e186ad74c0941f5caeda28bde76dab903b342c1c Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 6 Feb 2012 17:09:15 -0800 Subject: ARM: tegra: Demote EMC clock inconsistency BUG to WARN When this inconsistency occurs, the system will typically operate without issue, it's just that EMC scaling won't optimally. Convert the BUG_ON to a WARN_ONCE in order to allow the kernel to boot, but still complain. Signed-off-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/tegra2_clocks.c | 30 +++++++++++++++++++++++++----- 1 file changed, 25 insertions(+), 5 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c index ff9e6b6c0460..1976e934cdd9 100644 --- a/arch/arm/mach-tegra/tegra2_clocks.c +++ b/arch/arm/mach-tegra/tegra2_clocks.c @@ -1143,15 +1143,35 @@ static void tegra2_emc_clk_init(struct clk *c) static long tegra2_emc_clk_round_rate(struct clk *c, unsigned long rate) { - long new_rate = rate; + long emc_rate; + long clk_rate; - new_rate = tegra_emc_round_rate(new_rate); - if (new_rate < 0) + /* + * The slowest entry in the EMC clock table that is at least as + * fast as rate. + */ + emc_rate = tegra_emc_round_rate(rate); + if (emc_rate < 0) return c->max_rate; - BUG_ON(new_rate != tegra2_periph_clk_round_rate(c, new_rate)); + /* + * The fastest rate the PLL will generate that is at most the + * requested rate. + */ + clk_rate = tegra2_periph_clk_round_rate(c, emc_rate); + + /* + * If this fails, and emc_rate > clk_rate, it's because the maximum + * rate in the EMC tables is larger than the maximum rate of the EMC + * clock. The EMC clock's max rate is the rate it was running when the + * kernel booted. Such a mismatch is probably due to using the wrong + * BCT, i.e. using a Tegra20 BCT with an EMC table written for Tegra25. + */ + WARN_ONCE(emc_rate != clk_rate, + "emc_rate %ld != clk_rate %ld", + emc_rate, clk_rate); - return new_rate; + return emc_rate; } static int tegra2_emc_clk_set_rate(struct clk *c, unsigned long rate) -- cgit v1.2.3 From 9394243fc8b350cd0837a4d91fc21e7966e509e3 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Tue, 31 Jan 2012 16:43:24 +0800 Subject: ARM: imx: update imx_v6_v7_defconfig It adds CONFIG_BLK_DEV_INITRD and runs savedefconfig. The resulted can boot Linaro rootfs out of box. Signed-off-by: Shawn Guo --- arch/arm/configs/imx_v6_v7_defconfig | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'arch') diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 3a4fb2e5fc68..fa236a2a4661 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -5,6 +5,7 @@ CONFIG_SYSVIPC=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_CGROUPS=y CONFIG_RELAY=y +CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y # CONFIG_SLUB_DEBUG is not set # CONFIG_COMPAT_BRK is not set @@ -12,7 +13,6 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_MODULE_SRCVERSION_ALL=y -# CONFIG_LBDAF is not set # CONFIG_BLK_DEV_BSG is not set CONFIG_ARCH_MXC=y CONFIG_MACH_MX31LILLY=y @@ -26,7 +26,6 @@ CONFIG_MACH_ARMADILLO5X0=y CONFIG_MACH_KZM_ARM11_01=y CONFIG_MACH_PCM043=y CONFIG_MACH_MX35_3DS=y -CONFIG_MACH_EUKREA_CPUIMX35=y CONFIG_MACH_VPR200=y CONFIG_MACH_IMX51_DT=y CONFIG_MACH_MX51_3DS=y @@ -83,7 +82,6 @@ CONFIG_NETDEVICES=y # CONFIG_NET_VENDOR_BROADCOM is not set # CONFIG_NET_VENDOR_CHELSIO is not set # CONFIG_NET_VENDOR_FARADAY is not set -CONFIG_FEC=y # CONFIG_NET_VENDOR_INTEL is not set # CONFIG_NET_VENDOR_MARVELL is not set # CONFIG_NET_VENDOR_MICREL is not set -- cgit v1.2.3 From b1f91a9ce335eb4e0fef17c10f39a438ac3fce9b Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 27 Feb 2012 15:36:38 +0800 Subject: ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE Some devices on some imx boards are supplied by fixed voltage, so build REGULATOR_FIXED_VOLTAGE support in. Signed-off-by: Shawn Guo --- arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index fa236a2a4661..3cd606905178 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -124,6 +124,7 @@ CONFIG_WATCHDOG=y CONFIG_IMX2_WDT=y CONFIG_MFD_MC13XXX=y CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_MC13892=y CONFIG_USB=y CONFIG_USB_EHCI_HCD=y -- cgit v1.2.3 From 3ac804e31199c55440a423c76068d693b37fd50b Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 2 Feb 2012 20:02:32 -0200 Subject: ARM: mx3: Let mx31 and mx35 enter in LPM mode in WFI The LPM field of register CCMR is used to select the mode that the processor will run when it goes to WFI. When mx31 enters in WFI mode the LPM field is at its reset value of 0, which configures the mx31 to enter in "wait mode". On mx35, the LPM field on mx35 is also at 0 after reset, which corresponds to "run mode" instead of "wait mode". Instead of relying on the reset value of LPM to set the low power mode for WFI, configure mx31 and mx35 to run in "wait mode" Reported-by: Benoit Thebaudeau Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/Makefile | 4 ++-- arch/arm/mach-imx/crmregs-imx31.h | 1 + arch/arm/mach-imx/mm-imx3.c | 2 ++ arch/arm/mach-imx/pm-imx3.c | 37 +++++++++++++++++++++++++++++++++ arch/arm/plat-mxc/include/mach/common.h | 8 +++++++ 5 files changed, 50 insertions(+), 2 deletions(-) create mode 100644 arch/arm/mach-imx/pm-imx3.c (limited to 'arch') diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 55db9c488f2b..f4b6fb0730cb 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -8,8 +8,8 @@ obj-$(CONFIG_SOC_IMX25) += clock-imx25.o mm-imx25.o ehci-imx25.o cpu-imx25.o obj-$(CONFIG_SOC_IMX27) += cpu-imx27.o pm-imx27.o obj-$(CONFIG_SOC_IMX27) += clock-imx27.o mm-imx27.o ehci-imx27.o -obj-$(CONFIG_SOC_IMX31) += mm-imx3.o cpu-imx31.o clock-imx31.o iomux-imx31.o ehci-imx31.o -obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o clock-imx35.o ehci-imx35.o +obj-$(CONFIG_SOC_IMX31) += mm-imx3.o cpu-imx31.o clock-imx31.o iomux-imx31.o ehci-imx31.o pm-imx3.o +obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o clock-imx35.o ehci-imx35.o pm-imx3.o obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clock-mx51-mx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o diff --git a/arch/arm/mach-imx/crmregs-imx31.h b/arch/arm/mach-imx/crmregs-imx31.h index 37a8a07beda3..9a34d393b813 100644 --- a/arch/arm/mach-imx/crmregs-imx31.h +++ b/arch/arm/mach-imx/crmregs-imx31.h @@ -64,6 +64,7 @@ #define MXC_CCM_CCMR_SSI2S_MASK (0x3 << 21) #define MXC_CCM_CCMR_LPM_OFFSET 14 #define MXC_CCM_CCMR_LPM_MASK (0x3 << 14) +#define MXC_CCM_CCMR_LPM_WAIT_MX35 (0x1 << 14) #define MXC_CCM_CCMR_FIRS_OFFSET 11 #define MXC_CCM_CCMR_FIRS_MASK (0x3 << 11) #define MXC_CCM_CCMR_UPE (1 << 9) diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 31807d2a8b7b..905aafc1352c 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -34,6 +34,8 @@ static void imx3_idle(void) { unsigned long reg = 0; + mx3_cpu_lp_set(MX3_WAIT); + if (!need_resched()) __asm__ __volatile__( /* disable I and D cache */ diff --git a/arch/arm/mach-imx/pm-imx3.c b/arch/arm/mach-imx/pm-imx3.c new file mode 100644 index 000000000000..b3752439632e --- /dev/null +++ b/arch/arm/mach-imx/pm-imx3.c @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ +#include +#include +#include +#include +#include "crmregs-imx3.h" + +/* + * Set cpu low power mode before WFI instruction. This function is called + * mx3 because it can be used for mx31 and mx35. + * Currently only WAIT_MODE is supported. + */ +void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode) +{ + int reg = __raw_readl(MXC_CCM_CCMR); + reg &= ~MXC_CCM_CCMR_LPM_MASK; + + switch (mode) { + case MX3_WAIT: + if (cpu_is_mx35()) + reg |= MXC_CCM_CCMR_LPM_WAIT_MX35; + __raw_writel(reg, MXC_CCM_CCMR); + break; + default: + pr_err("Unknown cpu power mode: %d\n", mode); + return; + } +} diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 1bf0df81bdc6..06595a3d7ea3 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -84,6 +84,14 @@ enum mxc_cpu_pwr_mode { STOP_POWER_OFF, /* STOP + SRPG */ }; +enum mx3_cpu_pwr_mode { + MX3_RUN, + MX3_WAIT, + MX3_DOZE, + MX3_SLEEP, +}; + +extern void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode); extern void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode); extern void imx_print_silicon_rev(const char *cpu, int srev); -- cgit v1.2.3 From bb07d7511e0884f913a0610d5f9a2f8a27914042 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 29 Feb 2012 10:28:08 -0300 Subject: ARM: mx3: Setup AIPS registers It was observed on a mx31pdk board that audio playback only worked when the bootloader was Redboot, and did not work when U-boot was used. Comparing the sources of these bootloaders showed that the AIPS registers were not setup in U-boot. Instead of relying on the bootloader to setup the AIPS registers, do it in the kernel so that audio playback can work independantly of the bootloader being used. Copied the AIPS settings from Redboot to the kernel. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mm-imx3.c | 3 +++ arch/arm/plat-mxc/cpu.c | 24 ++++++++++++++++++++++++ arch/arm/plat-mxc/include/mach/common.h | 1 + 3 files changed, 28 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 905aafc1352c..35ce8b5fe75d 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -177,6 +177,9 @@ void __init imx31_soc_init(void) } imx_add_imx_sdma("imx31-sdma", MX31_SDMA_BASE_ADDR, MX31_INT_SDMA, &imx31_sdma_pdata); + + imx_set_aips(MX31_IO_ADDRESS(MX31_AIPS1_BASE_ADDR)); + imx_set_aips(MX31_IO_ADDRESS(MX31_AIPS2_BASE_ADDR)); } #endif /* ifdef CONFIG_SOC_IMX31 */ diff --git a/arch/arm/plat-mxc/cpu.c b/arch/arm/plat-mxc/cpu.c index f5b7e0fa237f..220dd6f93126 100644 --- a/arch/arm/plat-mxc/cpu.c +++ b/arch/arm/plat-mxc/cpu.c @@ -1,5 +1,6 @@ #include +#include #include unsigned int __mxc_cpu_type; @@ -18,3 +19,26 @@ void imx_print_silicon_rev(const char *cpu, int srev) pr_info("CPU identified as %s, silicon rev %d.%d\n", cpu, (srev >> 4) & 0xf, srev & 0xf); } + +void __init imx_set_aips(void __iomem *base) +{ + unsigned int reg; +/* + * Set all MPROTx to be non-bufferable, trusted for R/W, + * not forced to user-mode. + */ + __raw_writel(0x77777777, base + 0x0); + __raw_writel(0x77777777, base + 0x4); + +/* + * Set all OPACRx to be non-bufferable, to not require + * supervisor privilege level for access, allow for + * write access and untrusted master access. + */ + __raw_writel(0x0, base + 0x40); + __raw_writel(0x0, base + 0x44); + __raw_writel(0x0, base + 0x48); + __raw_writel(0x0, base + 0x4C); + reg = __raw_readl(base + 0x50) & 0x00FFFFFF; + __raw_writel(reg, base + 0x50); +} diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 06595a3d7ea3..7c24e5ab7d50 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -75,6 +75,7 @@ extern void mxc_restart(char, const char *); extern void mxc_arch_reset_init(void __iomem *); extern int mx53_revision(void); extern int mx53_display_revision(void); +extern void imx_set_aips(void __iomem *); enum mxc_cpu_pwr_mode { WAIT_CLOCKED, /* wfi only */ -- cgit v1.2.3 From aa6a9fa1f27414bd099c405bde7c42a3c99078f9 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 2 Mar 2012 07:45:58 -0300 Subject: ARM: mx5: Use common function for configuring AIPS Now that a common imx_set_aips() function is available, use it on mx51 and mx53. This lets the code smaller and cleaner. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/cpu-imx5.c | 36 ------------------------------------ arch/arm/mach-imx/mm-imx5.c | 8 ++++++++ 2 files changed, 8 insertions(+), 36 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-imx/cpu-imx5.c b/arch/arm/mach-imx/cpu-imx5.c index 5e2e7a843860..aa15c517d06e 100644 --- a/arch/arm/mach-imx/cpu-imx5.c +++ b/arch/arm/mach-imx/cpu-imx5.c @@ -149,39 +149,3 @@ int mx50_revision(void) return mx5_cpu_rev; } EXPORT_SYMBOL(mx50_revision); - -static int __init post_cpu_init(void) -{ - unsigned int reg; - void __iomem *base; - - if (cpu_is_mx51() || cpu_is_mx53()) { - if (cpu_is_mx51()) - base = MX51_IO_ADDRESS(MX51_AIPS1_BASE_ADDR); - else - base = MX53_IO_ADDRESS(MX53_AIPS1_BASE_ADDR); - - __raw_writel(0x0, base + 0x40); - __raw_writel(0x0, base + 0x44); - __raw_writel(0x0, base + 0x48); - __raw_writel(0x0, base + 0x4C); - reg = __raw_readl(base + 0x50) & 0x00FFFFFF; - __raw_writel(reg, base + 0x50); - - if (cpu_is_mx51()) - base = MX51_IO_ADDRESS(MX51_AIPS2_BASE_ADDR); - else - base = MX53_IO_ADDRESS(MX53_AIPS2_BASE_ADDR); - - __raw_writel(0x0, base + 0x40); - __raw_writel(0x0, base + 0x44); - __raw_writel(0x0, base + 0x48); - __raw_writel(0x0, base + 0x4C); - reg = __raw_readl(base + 0x50) & 0x00FFFFFF; - __raw_writel(reg, base + 0x50); - } - - return 0; -} - -postcore_initcall(post_cpu_init); diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index bc17dfea3817..93826eb01560 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/arch/arm/mach-imx/mm-imx5.c @@ -191,6 +191,10 @@ void __init imx51_soc_init(void) /* i.mx51 has the i.mx35 type sdma */ imx_add_imx_sdma("imx35-sdma", MX51_SDMA_BASE_ADDR, MX51_INT_SDMA, &imx51_sdma_pdata); + + /* Setup AIPS registers */ + imx_set_aips(MX51_IO_ADDRESS(MX51_AIPS1_BASE_ADDR)); + imx_set_aips(MX51_IO_ADDRESS(MX51_AIPS2_BASE_ADDR)); } void __init imx53_soc_init(void) @@ -206,4 +210,8 @@ void __init imx53_soc_init(void) /* i.mx53 has the i.mx35 type sdma */ imx_add_imx_sdma("imx35-sdma", MX53_SDMA_BASE_ADDR, MX53_INT_SDMA, &imx53_sdma_pdata); + + /* Setup AIPS registers */ + imx_set_aips(MX53_IO_ADDRESS(MX53_AIPS1_BASE_ADDR)); + imx_set_aips(MX53_IO_ADDRESS(MX53_AIPS2_BASE_ADDR)); } -- cgit v1.2.3 From 38bb3630bcba25f16106166a4aaf211c1d195863 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 2 Mar 2012 07:45:59 -0300 Subject: ARM: mx35: Setup the AIPS registers Setup the AIPS registers on mx35. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mm-imx3.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 31807d2a8b7b..d0c835c85b93 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -259,5 +259,9 @@ void __init imx35_soc_init(void) } imx_add_imx_sdma("imx35-sdma", MX35_SDMA_BASE_ADDR, MX35_INT_SDMA, &imx35_sdma_pdata); + + /* Setup AIPS registers */ + imx_set_aips(MX35_IO_ADDRESS(MX35_AIPS1_BASE_ADDR)); + imx_set_aips(MX35_IO_ADDRESS(MX35_AIPS2_BASE_ADDR)); } #endif /* ifdef CONFIG_SOC_IMX35 */ -- cgit v1.2.3 From 67173ca492ab6f3a6ee6c1283961008635f6322e Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Thu, 8 Mar 2012 02:07:27 -0800 Subject: ARM: EXYNOS: Add support AFTR mode on EXYNOS4210 This patch adds support AFTR(ARM OFF TOP RUNNING) mode in cpuidle driver. L2 cache keeps their data in this mode. This patch ports the code to the latest interfaces to save/restore CPU state inclusive of CPU PM notifiers, l2 resume and cpu_suspend/resume. Signed-off-by: Jaecheol Lee Signed-off-by: Lorenzo Pieralisi Signed-off-by: Amit Daniel Kachhap [kgene.kim@samsung.com: fixed for non-smp as per Tushar's pointing out] Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/cpuidle.c | 151 +++++++++++++++++++++++++++++++- arch/arm/mach-exynos/include/mach/pmu.h | 2 + 2 files changed, 149 insertions(+), 4 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index 4ebb382c5979..33ab4e7558af 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -11,25 +11,53 @@ #include #include #include +#include #include #include #include #include +#include +#include +#include +#include +#include + +#include + +#define REG_DIRECTGO_ADDR (samsung_rev() == EXYNOS4210_REV_1_1 ? \ + S5P_INFORM7 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ + (S5P_VA_SYSRAM + 0x24) : S5P_INFORM0)) +#define REG_DIRECTGO_FLAG (samsung_rev() == EXYNOS4210_REV_1_1 ? \ + S5P_INFORM6 : (samsung_rev() == EXYNOS4210_REV_1_0 ? \ + (S5P_VA_SYSRAM + 0x20) : S5P_INFORM1)) + +#define S5P_CHECK_AFTR 0xFCBA0D10 static int exynos4_enter_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index); +static int exynos4_enter_lowpower(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index); -static struct cpuidle_state exynos4_cpuidle_set[] = { +static struct cpuidle_state exynos4_cpuidle_set[] __initdata = { [0] = { .enter = exynos4_enter_idle, .exit_latency = 1, .target_residency = 100000, .flags = CPUIDLE_FLAG_TIME_VALID, - .name = "IDLE", + .name = "C0", .desc = "ARM clock gating(WFI)", }, + [1] = { + .enter = exynos4_enter_lowpower, + .exit_latency = 300, + .target_residency = 100000, + .flags = CPUIDLE_FLAG_TIME_VALID, + .name = "C1", + .desc = "ARM power down", + }, }; static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device); @@ -39,9 +67,102 @@ static struct cpuidle_driver exynos4_idle_driver = { .owner = THIS_MODULE, }; +/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */ +static void exynos4_set_wakeupmask(void) +{ + __raw_writel(0x0000ff3e, S5P_WAKEUP_MASK); +} + +static unsigned int g_pwr_ctrl, g_diag_reg; + +static void save_cpu_arch_register(void) +{ + /*read power control register*/ + asm("mrc p15, 0, %0, c15, c0, 0" : "=r"(g_pwr_ctrl) : : "cc"); + /*read diagnostic register*/ + asm("mrc p15, 0, %0, c15, c0, 1" : "=r"(g_diag_reg) : : "cc"); + return; +} + +static void restore_cpu_arch_register(void) +{ + /*write power control register*/ + asm("mcr p15, 0, %0, c15, c0, 0" : : "r"(g_pwr_ctrl) : "cc"); + /*write diagnostic register*/ + asm("mcr p15, 0, %0, c15, c0, 1" : : "r"(g_diag_reg) : "cc"); + return; +} + +static int idle_finisher(unsigned long flags) +{ + cpu_do_idle(); + return 1; +} + +static int exynos4_enter_core0_aftr(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + struct timeval before, after; + int idle_time; + unsigned long tmp; + + local_irq_disable(); + do_gettimeofday(&before); + + exynos4_set_wakeupmask(); + + /* Set value of power down register for aftr mode */ + exynos4_sys_powerdown_conf(SYS_AFTR); + + __raw_writel(virt_to_phys(s3c_cpu_resume), REG_DIRECTGO_ADDR); + __raw_writel(S5P_CHECK_AFTR, REG_DIRECTGO_FLAG); + + save_cpu_arch_register(); + + /* Setting Central Sequence Register for power down mode */ + tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); + tmp &= ~S5P_CENTRAL_LOWPWR_CFG; + __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); + + cpu_pm_enter(); + cpu_suspend(0, idle_finisher); + +#ifdef CONFIG_SMP + scu_enable(S5P_VA_SCU); +#endif + cpu_pm_exit(); + + restore_cpu_arch_register(); + + /* + * If PMU failed while entering sleep mode, WFI will be + * ignored by PMU and then exiting cpu_do_idle(). + * S5P_CENTRAL_LOWPWR_CFG bit will not be set automatically + * in this situation. + */ + tmp = __raw_readl(S5P_CENTRAL_SEQ_CONFIGURATION); + if (!(tmp & S5P_CENTRAL_LOWPWR_CFG)) { + tmp |= S5P_CENTRAL_LOWPWR_CFG; + __raw_writel(tmp, S5P_CENTRAL_SEQ_CONFIGURATION); + } + + /* Clear wakeup state register */ + __raw_writel(0x0, S5P_WAKEUP_STAT); + + do_gettimeofday(&after); + + local_irq_enable(); + idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + + (after.tv_usec - before.tv_usec); + + dev->last_residency = idle_time; + return index; +} + static int exynos4_enter_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, - int index) + int index) { struct timeval before, after; int idle_time; @@ -60,6 +181,22 @@ static int exynos4_enter_idle(struct cpuidle_device *dev, return index; } +static int exynos4_enter_lowpower(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + int new_index = index; + + /* This mode only can be entered when other core's are offline */ + if (num_online_cpus() > 1) + new_index = drv->safe_state_index; + + if (new_index == 0) + return exynos4_enter_idle(dev, drv, new_index); + else + return exynos4_enter_core0_aftr(dev, drv, new_index); +} + static int __init exynos4_init_cpuidle(void) { int i, max_cpuidle_state, cpu_id; @@ -74,19 +211,25 @@ static int __init exynos4_init_cpuidle(void) memcpy(&drv->states[i], &exynos4_cpuidle_set[i], sizeof(struct cpuidle_state)); } + drv->safe_state_index = 0; cpuidle_register_driver(&exynos4_idle_driver); for_each_cpu(cpu_id, cpu_online_mask) { device = &per_cpu(exynos4_cpuidle_device, cpu_id); device->cpu = cpu_id; - device->state_count = drv->state_count; + if (cpu_id == 0) + device->state_count = (sizeof(exynos4_cpuidle_set) / + sizeof(struct cpuidle_state)); + else + device->state_count = 1; /* Support IDLE only */ if (cpuidle_register_device(device)) { printk(KERN_ERR "CPUidle register device failed\n,"); return -EIO; } } + return 0; } device_initcall(exynos4_init_cpuidle); diff --git a/arch/arm/mach-exynos/include/mach/pmu.h b/arch/arm/mach-exynos/include/mach/pmu.h index 632dd5630138..e76b7faba66b 100644 --- a/arch/arm/mach-exynos/include/mach/pmu.h +++ b/arch/arm/mach-exynos/include/mach/pmu.h @@ -22,11 +22,13 @@ enum sys_powerdown { NUM_SYS_POWERDOWN, }; +extern unsigned long l2x0_regs_phys; struct exynos4_pmu_conf { void __iomem *reg; unsigned int val[NUM_SYS_POWERDOWN]; }; extern void exynos4_sys_powerdown_conf(enum sys_powerdown mode); +extern void s3c_cpu_resume(void); #endif /* __ASM_ARCH_PMU_H */ -- cgit v1.2.3 From 7c6035b63b023d241516c540ee581cd2d75b9f6a Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Thu, 8 Mar 2012 02:07:34 -0800 Subject: ARM: S5P: add L2 early resume code This patch adds code to resume L2 before MMU is enabled in suspend and cpuidle resume paths. s3c_cpu_resume is moved to the data section with appropriate comments. Signed-off-by: Lorenzo Pieralisi Signed-off-by: Amit Daniel Kachhap Signed-off-by: Kukjin Kim --- arch/arm/plat-s5p/sleep.S | 44 ++++++++++++++++++++++++++++++++++++++------ 1 file changed, 38 insertions(+), 6 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-s5p/sleep.S b/arch/arm/plat-s5p/sleep.S index 0fd591bfc9fd..006bd01eda02 100644 --- a/arch/arm/plat-s5p/sleep.S +++ b/arch/arm/plat-s5p/sleep.S @@ -23,9 +23,18 @@ */ #include -#include +#include +#include - .text +/* + * The following code is located into the .data section. This is to + * allow l2x0_regs_phys to be accessed with a relative load while we + * can't rely on any MMU translation. We could have put l2x0_regs_phys + * in the .text section as well, but some setups might insist on it to + * be truly read-only. (Reference from: arch/arm/kernel/sleep.S) + */ + .data + .align /* * sleep magic, to allow the bootloader to check for an valid @@ -39,11 +48,34 @@ * s3c_cpu_resume * * resume code entry for bootloader to call - * - * we must put this code here in the data segment as we have no - * other way of restoring the stack pointer after sleep, and we - * must not write to the code segment (code is read-only) */ ENTRY(s3c_cpu_resume) +#ifdef CONFIG_CACHE_L2X0 + adr r0, l2x0_regs_phys + ldr r0, [r0] + ldr r1, [r0, #L2X0_R_PHY_BASE] + ldr r2, [r1, #L2X0_CTRL] + tst r2, #0x1 + bne resume_l2on + ldr r2, [r0, #L2X0_R_AUX_CTRL] + str r2, [r1, #L2X0_AUX_CTRL] + ldr r2, [r0, #L2X0_R_TAG_LATENCY] + str r2, [r1, #L2X0_TAG_LATENCY_CTRL] + ldr r2, [r0, #L2X0_R_DATA_LATENCY] + str r2, [r1, #L2X0_DATA_LATENCY_CTRL] + ldr r2, [r0, #L2X0_R_PREFETCH_CTRL] + str r2, [r1, #L2X0_PREFETCH_CTRL] + ldr r2, [r0, #L2X0_R_PWR_CTRL] + str r2, [r1, #L2X0_POWER_CTRL] + mov r2, #1 + str r2, [r1, #L2X0_CTRL] +resume_l2on: +#endif b cpu_resume +ENDPROC(s3c_cpu_resume) +#ifdef CONFIG_CACHE_L2X0 + .globl l2x0_regs_phys +l2x0_regs_phys: + .long 0 +#endif -- cgit v1.2.3 From b756a50f7f47e1dee70921399dcb338e4d3bc183 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Thu, 8 Mar 2012 02:07:41 -0800 Subject: ARM: EXYNOS: save L2 settings during bootup This patch adds code to save L2 register configuration at boot, and later used to resume L2 before MMU is enabled in suspend and cpuidle resume paths. Signed-off-by: Lorenzo Pieralisi Signed-off-by: Amit Daniel Kachhap Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/common.c | 42 +++++++++++++++++++++++++++++++----------- 1 file changed, 31 insertions(+), 11 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index c59e18871006..9ff38aa08fd0 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -26,10 +26,12 @@ #include #include #include +#include #include #include #include +#include #include #include @@ -441,20 +443,38 @@ core_initcall(exynos4_core_init); #ifdef CONFIG_CACHE_L2X0 static int __init exynos4_l2x0_cache_init(void) { - /* TAG, Data Latency Control: 2cycle */ - __raw_writel(0x110, S5P_VA_L2CC + L2X0_TAG_LATENCY_CTRL); + if (!(__raw_readl(S5P_VA_L2CC + L2X0_CTRL) & 0x1)) { + l2x0_saved_regs.phy_base = EXYNOS4_PA_L2CC; + /* TAG, Data Latency Control: 2 cycles */ + l2x0_saved_regs.tag_latency = 0x110; - if (soc_is_exynos4210()) - __raw_writel(0x110, S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL); - else if (soc_is_exynos4212() || soc_is_exynos4412()) - __raw_writel(0x120, S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL); + if (soc_is_exynos4212() || soc_is_exynos4412()) + l2x0_saved_regs.data_latency = 0x120; + else + l2x0_saved_regs.data_latency = 0x110; + + l2x0_saved_regs.prefetch_ctrl = 0x30000007; + l2x0_saved_regs.pwr_ctrl = + (L2X0_DYNAMIC_CLK_GATING_EN | L2X0_STNDBY_MODE_EN); + + l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs); - /* L2X0 Prefetch Control */ - __raw_writel(0x30000007, S5P_VA_L2CC + L2X0_PREFETCH_CTRL); + __raw_writel(l2x0_saved_regs.tag_latency, + S5P_VA_L2CC + L2X0_TAG_LATENCY_CTRL); + __raw_writel(l2x0_saved_regs.data_latency, + S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL); - /* L2X0 Power Control */ - __raw_writel(L2X0_DYNAMIC_CLK_GATING_EN | L2X0_STNDBY_MODE_EN, - S5P_VA_L2CC + L2X0_POWER_CTRL); + /* L2X0 Prefetch Control */ + __raw_writel(l2x0_saved_regs.prefetch_ctrl, + S5P_VA_L2CC + L2X0_PREFETCH_CTRL); + + /* L2X0 Power Control */ + __raw_writel(l2x0_saved_regs.pwr_ctrl, + S5P_VA_L2CC + L2X0_POWER_CTRL); + + clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long)); + clean_dcache_area(&l2x0_saved_regs, sizeof(struct l2x0_regs)); + } l2x0_init(S5P_VA_L2CC, 0x7C470001, 0xC200ffff); -- cgit v1.2.3 From d0341c61a2f641c4f90f4ed4b0d538c9bcb63d18 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Thu, 8 Mar 2012 02:09:06 -0800 Subject: ARM: EXYNOS: remove useless code to save/restore L2 Following the merge of CPU PM notifiers and L2 resume code, this patch removes useless code to save and restore L2 registers. This is now automatically covered by suspend calls which integrated CPU PM notifiers and new sleep code that allows to resume L2 before MMU is turned on. Signed-off-by: Lorenzo Pieralisi Signed-off-by: Amit Daniel Kachhap Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/pm.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index a4f61a43c7ba..2dd55a191abd 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -155,13 +155,6 @@ static struct sleep_save exynos4_core_save[] = { SAVE_ITEM(S5P_SROM_BC3), }; -static struct sleep_save exynos4_l2cc_save[] = { - SAVE_ITEM(S5P_VA_L2CC + L2X0_TAG_LATENCY_CTRL), - SAVE_ITEM(S5P_VA_L2CC + L2X0_DATA_LATENCY_CTRL), - SAVE_ITEM(S5P_VA_L2CC + L2X0_PREFETCH_CTRL), - SAVE_ITEM(S5P_VA_L2CC + L2X0_POWER_CTRL), - SAVE_ITEM(S5P_VA_L2CC + L2X0_AUX_CTRL), -}; /* For Cortex-A9 Diagnostic and Power control register */ static unsigned int save_arm_register[2]; @@ -182,7 +175,6 @@ static void exynos4_pm_prepare(void) u32 tmp; s3c_pm_do_save(exynos4_core_save, ARRAY_SIZE(exynos4_core_save)); - s3c_pm_do_save(exynos4_l2cc_save, ARRAY_SIZE(exynos4_l2cc_save)); s3c_pm_do_save(exynos4_epll_save, ARRAY_SIZE(exynos4_epll_save)); s3c_pm_do_save(exynos4_vpll_save, ARRAY_SIZE(exynos4_vpll_save)); @@ -386,13 +378,6 @@ static void exynos4_pm_resume(void) scu_enable(S5P_VA_SCU); -#ifdef CONFIG_CACHE_L2X0 - s3c_pm_do_restore_core(exynos4_l2cc_save, ARRAY_SIZE(exynos4_l2cc_save)); - outer_inv_all(); - /* enable L2X0*/ - writel_relaxed(1, S5P_VA_L2CC + L2X0_CTRL); -#endif - early_wakeup: return; } -- cgit v1.2.3 From 6cdeddcc8149672d4b888709d063825a80304d09 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Thu, 8 Mar 2012 02:09:12 -0800 Subject: ARM: EXYNOS: Enable l2 configuration through device tree This patch enables calling generic l2 setup functions if device tree is used. Signed-off-by: Amit Daniel Kachhap Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/common.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 9ff38aa08fd0..cb5ad8c1fea8 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -47,6 +47,8 @@ #include #include "common.h" +#define L2_AUX_VAL 0x7C470001 +#define L2_AUX_MASK 0xC200ffff static const char name_exynos4210[] = "EXYNOS4210"; static const char name_exynos4212[] = "EXYNOS4212"; @@ -443,6 +445,14 @@ core_initcall(exynos4_core_init); #ifdef CONFIG_CACHE_L2X0 static int __init exynos4_l2x0_cache_init(void) { + int ret; + ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK); + if (!ret) { + l2x0_regs_phys = virt_to_phys(&l2x0_saved_regs); + clean_dcache_area(&l2x0_regs_phys, sizeof(unsigned long)); + return 0; + } + if (!(__raw_readl(S5P_VA_L2CC + L2X0_CTRL) & 0x1)) { l2x0_saved_regs.phy_base = EXYNOS4_PA_L2CC; /* TAG, Data Latency Control: 2 cycles */ @@ -476,8 +486,7 @@ static int __init exynos4_l2x0_cache_init(void) clean_dcache_area(&l2x0_saved_regs, sizeof(struct l2x0_regs)); } - l2x0_init(S5P_VA_L2CC, 0x7C470001, 0xC200ffff); - + l2x0_init(S5P_VA_L2CC, L2_AUX_VAL, L2_AUX_MASK); return 0; } -- cgit v1.2.3 From 99f6e1f50cbb048325c966f2d0e7fe3e47010905 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Wed, 7 Mar 2012 04:23:47 -0800 Subject: ARM: S3C64XX: Add usb otg phy control This patch supports to control usb otg phy of S3C64XX. Currently, the driver for usb otg controls usb otg phy but it can be removed by this patch. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park [Rebased on the newest git/kgene/linux-samsung #for-next] Signed-off-by: Lukasz Majewski Acked-by: Mark Brown Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c64xx/Kconfig | 8 ++ arch/arm/mach-s3c64xx/Makefile | 1 + arch/arm/mach-s3c64xx/mach-crag6410.c | 4 + arch/arm/mach-s3c64xx/mach-smartq.c | 3 + arch/arm/mach-s3c64xx/mach-smdk6410.c | 4 + arch/arm/mach-s3c64xx/setup-usb-phy.c | 90 ++++++++++++++++++++++ arch/arm/plat-samsung/devs.c | 14 ++++ .../plat-samsung/include/plat/regs-usb-hsotg-phy.h | 7 +- arch/arm/plat-samsung/include/plat/udc-hs.h | 5 ++ 9 files changed, 133 insertions(+), 3 deletions(-) create mode 100644 arch/arm/mach-s3c64xx/setup-usb-phy.c (limited to 'arch') diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig index dd20c66cd700..326ea3a98725 100644 --- a/arch/arm/mach-s3c64xx/Kconfig +++ b/arch/arm/mach-s3c64xx/Kconfig @@ -83,6 +83,11 @@ config S3C64XX_SETUP_SPI help Common setup code for SPI GPIO configurations +config S3C64XX_SETUP_USB_PHY + bool + help + Common setup code for USB PHY controller + # S36400 Macchine support config MACH_SMDK6400 @@ -157,6 +162,7 @@ config MACH_SMDK6410 select S3C64XX_SETUP_IDE select S3C64XX_SETUP_FB_24BPP select S3C64XX_SETUP_KEYPAD + select S3C64XX_SETUP_USB_PHY help Machine support for the Samsung SMDK6410 @@ -256,6 +262,7 @@ config MACH_SMARTQ select S3C_DEV_USB_HOST select S3C64XX_SETUP_SDHCI select S3C64XX_SETUP_FB_24BPP + select S3C64XX_SETUP_USB_PHY select SAMSUNG_DEV_ADC select SAMSUNG_DEV_PWM select SAMSUNG_DEV_TS @@ -283,6 +290,7 @@ config MACH_WLF_CRAGG_6410 select S3C64XX_SETUP_FB_24BPP select S3C64XX_SETUP_KEYPAD select S3C64XX_SETUP_SPI + select S3C64XX_SETUP_USB_PHY select SAMSUNG_DEV_ADC select SAMSUNG_DEV_KEYPAD select S3C_DEV_USB_HOST diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile index 610fe2807ed7..f9ce1dc28ce4 100644 --- a/arch/arm/mach-s3c64xx/Makefile +++ b/arch/arm/mach-s3c64xx/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_S3C64XX_SETUP_IDE) += setup-ide.o obj-$(CONFIG_S3C64XX_SETUP_KEYPAD) += setup-keypad.o obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o obj-$(CONFIG_S3C64XX_SETUP_SPI) += setup-spi.o +obj-$(CONFIG_S3C64XX_SETUP_USB_PHY) += setup-usb-phy.o # Machine support diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c index 8077f650eb0e..3b56bd9cb880 100644 --- a/arch/arm/mach-s3c64xx/mach-crag6410.c +++ b/arch/arm/mach-s3c64xx/mach-crag6410.c @@ -59,6 +59,7 @@ #include #include #include +#include #include #include @@ -698,6 +699,8 @@ static struct s3c_sdhci_platdata crag6410_hsmmc0_pdata = { .cfg_gpio = crag6410_cfg_sdhci0, }; +static struct s3c_hsotg_plat crag6410_hsotg_pdata; + static void __init crag6410_machine_init(void) { /* Open drain IRQs need pullups */ @@ -722,6 +725,7 @@ static void __init crag6410_machine_init(void) s3c_i2c0_set_platdata(&i2c0_pdata); s3c_i2c1_set_platdata(&i2c1_pdata); s3c_fb_set_platdata(&crag6410_lcd_pdata); + s3c_hsotg_set_platdata(&crag6410_hsotg_pdata); i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0)); i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1)); diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c index ce31db136231..ce745e19aa27 100644 --- a/arch/arm/mach-s3c64xx/mach-smartq.c +++ b/arch/arm/mach-s3c64xx/mach-smartq.c @@ -187,6 +187,8 @@ static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = { }, }; +static struct s3c_hsotg_plat smartq_hsotg_pdata; + static int __init smartq_lcd_setup_gpio(void) { int ret; @@ -383,6 +385,7 @@ void __init smartq_map_io(void) void __init smartq_machine_init(void) { s3c_i2c0_set_platdata(NULL); + s3c_hsotg_set_platdata(&smartq_hsotg_pdata); s3c_hwmon_set_platdata(&smartq_hwmon_pdata); s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata); s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata); diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c index ca6fc204f0ea..d55bc96d9582 100644 --- a/arch/arm/mach-s3c64xx/mach-smdk6410.c +++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c @@ -72,6 +72,7 @@ #include #include #include +#include #include "common.h" @@ -631,6 +632,8 @@ static struct platform_pwm_backlight_data smdk6410_bl_data = { .pwm_id = 1, }; +static struct s3c_hsotg_plat smdk6410_hsotg_pdata; + static void __init smdk6410_map_io(void) { u32 tmp; @@ -659,6 +662,7 @@ static void __init smdk6410_machine_init(void) s3c_i2c0_set_platdata(NULL); s3c_i2c1_set_platdata(NULL); s3c_fb_set_platdata(&smdk6410_lcd_pdata); + s3c_hsotg_set_platdata(&smdk6410_hsotg_pdata); samsung_keypad_set_platdata(&smdk6410_keypad_data); diff --git a/arch/arm/mach-s3c64xx/setup-usb-phy.c b/arch/arm/mach-s3c64xx/setup-usb-phy.c new file mode 100644 index 000000000000..f6757e02d7db --- /dev/null +++ b/arch/arm/mach-s3c64xx/setup-usb-phy.c @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2011 Samsung Electronics Co.Ltd + * Author: Joonyoung Shim + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int s3c_usb_otgphy_init(struct platform_device *pdev) +{ + struct clk *xusbxti; + u32 phyclk; + + writel(readl(S3C64XX_OTHERS) | S3C64XX_OTHERS_USBMASK, S3C64XX_OTHERS); + + /* set clock frequency for PLL */ + phyclk = readl(S3C_PHYCLK) & ~S3C_PHYCLK_CLKSEL_MASK; + + xusbxti = clk_get(&pdev->dev, "xusbxti"); + if (xusbxti && !IS_ERR(xusbxti)) { + switch (clk_get_rate(xusbxti)) { + case 12 * MHZ: + phyclk |= S3C_PHYCLK_CLKSEL_12M; + break; + case 24 * MHZ: + phyclk |= S3C_PHYCLK_CLKSEL_24M; + break; + default: + case 48 * MHZ: + /* default reference clock */ + break; + } + clk_put(xusbxti); + } + + /* TODO: select external clock/oscillator */ + writel(phyclk | S3C_PHYCLK_CLK_FORCE, S3C_PHYCLK); + + /* set to normal OTG PHY */ + writel((readl(S3C_PHYPWR) & ~S3C_PHYPWR_NORMAL_MASK), S3C_PHYPWR); + mdelay(1); + + /* reset OTG PHY and Link */ + writel(S3C_RSTCON_PHY | S3C_RSTCON_HCLK | S3C_RSTCON_PHYCLK, + S3C_RSTCON); + udelay(20); /* at-least 10uS */ + writel(0, S3C_RSTCON); + + return 0; +} + +static int s3c_usb_otgphy_exit(struct platform_device *pdev) +{ + writel((readl(S3C_PHYPWR) | S3C_PHYPWR_ANALOG_POWERDOWN | + S3C_PHYPWR_OTG_DISABLE), S3C_PHYPWR); + + writel(readl(S3C64XX_OTHERS) & ~S3C64XX_OTHERS_USBMASK, S3C64XX_OTHERS); + + return 0; +} + +int s5p_usb_phy_init(struct platform_device *pdev, int type) +{ + if (type == S5P_USB_PHY_DEVICE) + return s3c_usb_otgphy_init(pdev); + + return -EINVAL; +} + +int s5p_usb_phy_exit(struct platform_device *pdev, int type) +{ + if (type == S5P_USB_PHY_DEVICE) + return s3c_usb_otgphy_exit(pdev); + + return -EINVAL; +} diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 145580a4a62c..21168eaad356 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -57,6 +57,7 @@ #include #include #include +#include #include #include #include @@ -1449,6 +1450,19 @@ struct platform_device s3c_device_usb_hsotg = { .coherent_dma_mask = DMA_BIT_MASK(32), }, }; + +void __init s3c_hsotg_set_platdata(struct s3c_hsotg_plat *pd) +{ + struct s3c_hsotg_plat *npd; + + npd = s3c_set_platdata(pd, sizeof(struct s3c_hsotg_plat), + &s3c_device_usb_hsotg); + + if (!npd->phy_init) + npd->phy_init = s5p_usb_phy_init; + if (!npd->phy_exit) + npd->phy_exit = s5p_usb_phy_exit; +} #endif /* CONFIG_S3C_DEV_USB_HSOTG */ /* USB High Spped 2.0 Device (Gadget) */ diff --git a/arch/arm/plat-samsung/include/plat/regs-usb-hsotg-phy.h b/arch/arm/plat-samsung/include/plat/regs-usb-hsotg-phy.h index a111ad871833..fcf279662067 100644 --- a/arch/arm/plat-samsung/include/plat/regs-usb-hsotg-phy.h +++ b/arch/arm/plat-samsung/include/plat/regs-usb-hsotg-phy.h @@ -25,8 +25,9 @@ #define S3C_HSOTG_PHYREG(x) ((x) + S3C_VA_USB_HSPHY) #define S3C_PHYPWR S3C_HSOTG_PHYREG(0x00) -#define SRC_PHYPWR_OTG_DISABLE (1 << 4) -#define SRC_PHYPWR_ANALOG_POWERDOWN (1 << 3) +#define S3C_PHYPWR_NORMAL_MASK (0x19 << 0) +#define S3C_PHYPWR_OTG_DISABLE (1 << 4) +#define S3C_PHYPWR_ANALOG_POWERDOWN (1 << 3) #define SRC_PHYPWR_FORCE_SUSPEND (1 << 1) #define S3C_PHYCLK S3C_HSOTG_PHYREG(0x04) @@ -42,7 +43,7 @@ #define S3C_RSTCON S3C_HSOTG_PHYREG(0x08) #define S3C_RSTCON_PHYCLK (1 << 2) -#define S3C_RSTCON_HCLK (1 << 2) +#define S3C_RSTCON_HCLK (1 << 1) #define S3C_RSTCON_PHY (1 << 0) #define S3C_PHYTUNE S3C_HSOTG_PHYREG(0x20) diff --git a/arch/arm/plat-samsung/include/plat/udc-hs.h b/arch/arm/plat-samsung/include/plat/udc-hs.h index a22a4f2eea94..c9e3667cb2b1 100644 --- a/arch/arm/plat-samsung/include/plat/udc-hs.h +++ b/arch/arm/plat-samsung/include/plat/udc-hs.h @@ -26,4 +26,9 @@ enum s3c_hsotg_dmamode { struct s3c_hsotg_plat { enum s3c_hsotg_dmamode dma; unsigned int is_osc : 1; + + int (*phy_init)(struct platform_device *pdev, int type); + int (*phy_exit)(struct platform_device *pdev, int type); }; + +extern void s3c_hsotg_set_platdata(struct s3c_hsotg_plat *pd); -- cgit v1.2.3 From 7f471ee8bed570c0f8ea48f17a957c3b31f54a61 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Thu, 8 Mar 2012 19:52:25 +0900 Subject: ARM: S5PV210: Add usb otg phy control This patch supports to control usb otg phy of S5PV210. Based on setup-usb-phy.c of S3C64XX. Signed-off-by: Joonyoung Shim Signed-off-by: Kyungmin Park [Test HW: GONI S5PC110] Tested-by: Lukasz Majewski Signed-off-by: Kukjin Kim --- arch/arm/mach-s5pv210/Kconfig | 6 ++ arch/arm/mach-s5pv210/Makefile | 1 + arch/arm/mach-s5pv210/include/mach/regs-sys.h | 4 -- arch/arm/mach-s5pv210/setup-usb-phy.c | 90 +++++++++++++++++++++++++++ 4 files changed, 97 insertions(+), 4 deletions(-) create mode 100644 arch/arm/mach-s5pv210/setup-usb-phy.c (limited to 'arch') diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig index 2cdc42e838b8..82525e3831e9 100644 --- a/arch/arm/mach-s5pv210/Kconfig +++ b/arch/arm/mach-s5pv210/Kconfig @@ -65,6 +65,11 @@ config S5PV210_SETUP_SPI help Common setup code for SPI GPIO configurations. +config S5PV210_SETUP_USB_PHY + bool + help + Common setup code for USB PHY controller + menu "S5PC110 Machines" config MACH_AQUILA @@ -107,6 +112,7 @@ config MACH_GONI select S5PV210_SETUP_KEYPAD select S5PV210_SETUP_SDHCI select S5PV210_SETUP_FIMC + select S5PV210_SETUP_USB_PHY help Machine support for Samsung GONI board S5PC110(MCP) is one of package option of S5PV210 diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile index 76a121dd52b4..1c4e41998a10 100644 --- a/arch/arm/mach-s5pv210/Makefile +++ b/arch/arm/mach-s5pv210/Makefile @@ -39,3 +39,4 @@ obj-$(CONFIG_S5PV210_SETUP_IDE) += setup-ide.o obj-$(CONFIG_S5PV210_SETUP_KEYPAD) += setup-keypad.o obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o obj-$(CONFIG_S5PV210_SETUP_SPI) += setup-spi.o +obj-$(CONFIG_S5PV210_SETUP_USB_PHY) += setup-usb-phy.o diff --git a/arch/arm/mach-s5pv210/include/mach/regs-sys.h b/arch/arm/mach-s5pv210/include/mach/regs-sys.h index 26691d39d0f4..cccb1eddaa38 100644 --- a/arch/arm/mach-s5pv210/include/mach/regs-sys.h +++ b/arch/arm/mach-s5pv210/include/mach/regs-sys.h @@ -13,7 +13,3 @@ #define S5PV210_USB_PHY_CON (S3C_VA_SYS + 0xE80C) #define S5PV210_USB_PHY0_EN (1 << 0) #define S5PV210_USB_PHY1_EN (1 << 1) - -/* compatibility defines for s3c-hsotg driver */ -#define S3C64XX_OTHERS S5PV210_USB_PHY_CON -#define S3C64XX_OTHERS_USBMASK S5PV210_USB_PHY0_EN diff --git a/arch/arm/mach-s5pv210/setup-usb-phy.c b/arch/arm/mach-s5pv210/setup-usb-phy.c new file mode 100644 index 000000000000..be39cf4aa91b --- /dev/null +++ b/arch/arm/mach-s5pv210/setup-usb-phy.c @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2012 Samsung Electronics Co.Ltd + * Author: Joonyoung Shim + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundationr + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int s5pv210_usb_otgphy_init(struct platform_device *pdev) +{ + struct clk *xusbxti; + u32 phyclk; + + writel(readl(S5PV210_USB_PHY_CON) | S5PV210_USB_PHY0_EN, + S5PV210_USB_PHY_CON); + + /* set clock frequency for PLL */ + phyclk = readl(S3C_PHYCLK) & ~S3C_PHYCLK_CLKSEL_MASK; + + xusbxti = clk_get(&pdev->dev, "xusbxti"); + if (xusbxti && !IS_ERR(xusbxti)) { + switch (clk_get_rate(xusbxti)) { + case 12 * MHZ: + phyclk |= S3C_PHYCLK_CLKSEL_12M; + break; + case 24 * MHZ: + phyclk |= S3C_PHYCLK_CLKSEL_24M; + break; + default: + case 48 * MHZ: + /* default reference clock */ + break; + } + clk_put(xusbxti); + } + + /* TODO: select external clock/oscillator */ + writel(phyclk | S3C_PHYCLK_CLK_FORCE, S3C_PHYCLK); + + /* set to normal OTG PHY */ + writel((readl(S3C_PHYPWR) & ~S3C_PHYPWR_NORMAL_MASK), S3C_PHYPWR); + mdelay(1); + + /* reset OTG PHY and Link */ + writel(S3C_RSTCON_PHY | S3C_RSTCON_HCLK | S3C_RSTCON_PHYCLK, + S3C_RSTCON); + udelay(20); /* at-least 10uS */ + writel(0, S3C_RSTCON); + + return 0; +} + +static int s5pv210_usb_otgphy_exit(struct platform_device *pdev) +{ + writel((readl(S3C_PHYPWR) | S3C_PHYPWR_ANALOG_POWERDOWN | + S3C_PHYPWR_OTG_DISABLE), S3C_PHYPWR); + + writel(readl(S5PV210_USB_PHY_CON) & ~S5PV210_USB_PHY0_EN, + S5PV210_USB_PHY_CON); + + return 0; +} + +int s5p_usb_phy_init(struct platform_device *pdev, int type) +{ + if (type == S5P_USB_PHY_DEVICE) + return s5pv210_usb_otgphy_init(pdev); + + return -EINVAL; +} + +int s5p_usb_phy_exit(struct platform_device *pdev, int type) +{ + if (type == S5P_USB_PHY_DEVICE) + return s5pv210_usb_otgphy_exit(pdev); + + return -EINVAL; +} -- cgit v1.2.3 From 4db17215da33940e4c594c1152ce765c5506a621 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Fri, 9 Mar 2012 08:03:13 -0800 Subject: ARM: SAMSUNG: Add __init attribute to samsung_bl_set() s3c_set_platdata() is defined with __init attribute, hence all functions referencing this function should also be defined with __init attribute. samsung_bl_set() is referenced only in '__init xxx_machine_init()' functions, thus this change won't put any additional constraint on the usage of samsung_bl_set(). Signed-off-by: Tushar Behera Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/dev-backlight.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c index 2254920a02cf..5f197dcaf10c 100644 --- a/arch/arm/plat-samsung/dev-backlight.c +++ b/arch/arm/plat-samsung/dev-backlight.c @@ -77,7 +77,7 @@ static struct platform_device samsung_dfl_bl_device __initdata = { * @gpio_info: structure containing GPIO info for PWM timer * @bl_data: structure containing Backlight control data */ -void samsung_bl_set(struct samsung_bl_gpio_info *gpio_info, +void __init samsung_bl_set(struct samsung_bl_gpio_info *gpio_info, struct platform_pwm_backlight_data *bl_data) { int ret = 0; -- cgit v1.2.3 From eff4c58dac1c7d90377ba5c060bab3966a3879ae Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Fri, 9 Mar 2012 08:03:17 -0800 Subject: ARM: SAMSUNG: fix __init attribute on regarding s3c_set_platdata() s3c_set_platdata() is defined with __init attribute, hence all functions referencing this function should also be defined with __init attribute. Signed-off-by: Tushar Behera Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/devs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 21168eaad356..663f837a101f 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -796,7 +796,7 @@ struct platform_device s3c_device_cfcon = { .resource = s3c_cfcon_resource, }; -void s3c_ide_set_platdata(struct s3c_ide_platdata *pdata) +void __init s3c_ide_set_platdata(struct s3c_ide_platdata *pdata) { s3c_set_platdata(pdata, sizeof(struct s3c_ide_platdata), &s3c_device_cfcon); @@ -1076,7 +1076,7 @@ struct platform_device s3c64xx_device_onenand1 = { .resource = s3c64xx_onenand1_resources, }; -void s3c64xx_onenand1_set_platdata(struct onenand_platform_data *pdata) +void __init s3c64xx_onenand1_set_platdata(struct onenand_platform_data *pdata) { s3c_set_platdata(pdata, sizeof(struct onenand_platform_data), &s3c64xx_device_onenand1); -- cgit v1.2.3 From 75ac7284c980ccb3f0e2ab21fe8acf3818317bc3 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 9 Mar 2012 08:38:41 -0800 Subject: ARM: SAMSUNG: Correct MIPI-CSIS io memory resource definition The resources size is increased to 16KB to also include the non-image packet data buffers (CSIS_PKTDATAn). The 4KiB region is only sufficient when the driver is not using the packet data buffers. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/devs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch') diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 663f837a101f..996567ee94cd 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -914,7 +914,7 @@ struct platform_device s5p_device_mfc_r = { #ifdef CONFIG_S5P_DEV_CSIS0 static struct resource s5p_mipi_csis0_resource[] = { - [0] = DEFINE_RES_MEM(S5P_PA_MIPI_CSIS0, SZ_4K), + [0] = DEFINE_RES_MEM(S5P_PA_MIPI_CSIS0, SZ_16K), [1] = DEFINE_RES_IRQ(IRQ_MIPI_CSIS0), }; @@ -928,7 +928,7 @@ struct platform_device s5p_device_mipi_csis0 = { #ifdef CONFIG_S5P_DEV_CSIS1 static struct resource s5p_mipi_csis1_resource[] = { - [0] = DEFINE_RES_MEM(S5P_PA_MIPI_CSIS1, SZ_4K), + [0] = DEFINE_RES_MEM(S5P_PA_MIPI_CSIS1, SZ_16K), [1] = DEFINE_RES_IRQ(IRQ_MIPI_CSIS1), }; -- cgit v1.2.3 From 2bde0b08cae739056d1c136839b67eec0ac0c3a4 Mon Sep 17 00:00:00 2001 From: MyungJoo Ham Date: Thu, 1 Dec 2011 15:12:30 +0900 Subject: ARM: EXYNOS: Add DMC1, allow PPMU access for DMC - Add DMC1 - Enlarge address space for DMC from 4k to 64k so that PPMU registers may be accessed. Signed-off-by: MyungJoo Ham Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/common.c | 7 ++++++- arch/arm/mach-exynos/include/mach/map.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) (limited to 'arch') diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index cb5ad8c1fea8..02696ac143bd 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -177,7 +177,12 @@ static struct map_desc exynos4_iodesc[] __initdata = { }, { .virtual = (unsigned long)S5P_VA_DMC0, .pfn = __phys_to_pfn(EXYNOS4_PA_DMC0), - .length = SZ_4K, + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = (unsigned long)S5P_VA_DMC1, + .pfn = __phys_to_pfn(EXYNOS4_PA_DMC1), + .length = SZ_64K, .type = MT_DEVICE, }, { .virtual = (unsigned long)S3C_VA_USB_HSPHY, diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index 7df9e7456814..535f55f76920 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -59,6 +59,7 @@ #define EXYNOS4_PA_KEYPAD 0x100A0000 #define EXYNOS4_PA_DMC0 0x10400000 +#define EXYNOS4_PA_DMC1 0x10410000 #define EXYNOS4_PA_COMBINER 0x10440000 -- cgit v1.2.3 From 3dbe6d4cacc76100f3166cd824d3ce7a8cef7cef Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Sat, 10 Mar 2012 02:45:42 -0800 Subject: ARM: EXYNOS: add support JPEG This patch adds platform_device, clock, map for JPEG Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/clock.c | 5 +++++ arch/arm/mach-exynos/include/mach/map.h | 3 +++ arch/arm/plat-s5p/Kconfig | 5 +++++ arch/arm/plat-samsung/devs.c | 18 ++++++++++++++++++ arch/arm/plat-samsung/include/plat/devs.h | 1 + 5 files changed, 32 insertions(+) (limited to 'arch') diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c index 5a8c42e90005..e532bc2960a4 100644 --- a/arch/arm/mach-exynos/clock.c +++ b/arch/arm/mach-exynos/clock.c @@ -469,6 +469,11 @@ static struct clk init_clocks_off[] = { .devname = "s5p-mipi-csis.1", .enable = exynos4_clk_ip_cam_ctrl, .ctrlbit = (1 << 5), + }, { + .name = "jpeg", + .id = 0, + .enable = exynos4_clk_ip_cam_ctrl, + .ctrlbit = (1 << 6), }, { .name = "fimc", .devname = "exynos4-fimc.0", diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h index 535f55f76920..a8cd65fcc685 100644 --- a/arch/arm/mach-exynos/include/mach/map.h +++ b/arch/arm/mach-exynos/include/mach/map.h @@ -31,6 +31,8 @@ #define EXYNOS4_PA_FIMC2 0x11820000 #define EXYNOS4_PA_FIMC3 0x11830000 +#define EXYNOS4_PA_JPEG 0x11840000 + #define EXYNOS4_PA_G2D 0x12800000 #define EXYNOS4_PA_I2S0 0x03830000 @@ -165,6 +167,7 @@ #define S5P_PA_FIMC1 EXYNOS4_PA_FIMC1 #define S5P_PA_FIMC2 EXYNOS4_PA_FIMC2 #define S5P_PA_FIMC3 EXYNOS4_PA_FIMC3 +#define S5P_PA_JPEG EXYNOS4_PA_JPEG #define S5P_PA_G2D EXYNOS4_PA_G2D #define S5P_PA_FIMD0 EXYNOS4_PA_FIMD0 #define S5P_PA_HDMI EXYNOS4_PA_HDMI diff --git a/arch/arm/plat-s5p/Kconfig b/arch/arm/plat-s5p/Kconfig index e7fec7820a18..7a308699f816 100644 --- a/arch/arm/plat-s5p/Kconfig +++ b/arch/arm/plat-s5p/Kconfig @@ -80,6 +80,11 @@ config S5P_DEV_FIMC3 help Compile in platform device definitions for FIMC controller 3 +config S5P_DEV_JPEG + bool + help + Compile in platform device definitions for JPEG codec + config S5P_DEV_G2D bool help diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 996567ee94cd..cd0b9da9bbc4 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -296,6 +296,24 @@ struct platform_device s5p_device_g2d = { }; #endif /* CONFIG_S5P_DEV_G2D */ +#ifdef CONFIG_S5P_DEV_JPEG +static struct resource s5p_jpeg_resource[] = { + [0] = DEFINE_RES_MEM(S5P_PA_JPEG, SZ_4K), + [1] = DEFINE_RES_IRQ(IRQ_JPEG), +}; + +struct platform_device s5p_device_jpeg = { + .name = "s5p-jpeg", + .id = 0, + .num_resources = ARRAY_SIZE(s5p_jpeg_resource), + .resource = s5p_jpeg_resource, + .dev = { + .dma_mask = &samsung_device_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; +#endif /* CONFIG_S5P_DEV_JPEG */ + /* FIMD0 */ #ifdef CONFIG_S5P_DEV_FIMD0 diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h index bb4584815037..5e7972de3ed5 100644 --- a/arch/arm/plat-samsung/include/plat/devs.h +++ b/arch/arm/plat-samsung/include/plat/devs.h @@ -79,6 +79,7 @@ extern struct platform_device s5p_device_fimc1; extern struct platform_device s5p_device_fimc2; extern struct platform_device s5p_device_fimc3; extern struct platform_device s5p_device_fimc_md; +extern struct platform_device s5p_device_jpeg; extern struct platform_device s5p_device_g2d; extern struct platform_device s5p_device_fimd0; extern struct platform_device s5p_device_hdmi; -- cgit v1.2.3 From 4d2e4d7f2c2b1a4382286821a59fa2f4012cb748 Mon Sep 17 00:00:00 2001 From: Changhwan Youn Date: Fri, 9 Mar 2012 15:09:21 -0800 Subject: ARM: EXYNOS: fix cycle count for periodic mode of clock event timers EXYNOS SOC series use MCT for kernel timer and MCT has two types of clock event timers, which are mct-comp and mct-tick. Because the clock rate of each event timer is diffent from the other, this patch fixes cycles_per_jiffy for each timer's periodic mode. Signed-off-by: Changhwan Youn Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/mct.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-exynos/mct.c b/arch/arm/mach-exynos/mct.c index 85b5527d0918..3e894ba25b01 100644 --- a/arch/arm/mach-exynos/mct.c +++ b/arch/arm/mach-exynos/mct.c @@ -29,12 +29,13 @@ #include #include +#define TICK_BASE_CNT 1 + enum { MCT_INT_SPI, MCT_INT_PPI }; -static unsigned long clk_cnt_per_tick; static unsigned long clk_rate; static unsigned int mct_int_type; @@ -205,11 +206,14 @@ static int exynos4_comp_set_next_event(unsigned long cycles, static void exynos4_comp_set_mode(enum clock_event_mode mode, struct clock_event_device *evt) { + unsigned long cycles_per_jiffy; exynos4_mct_comp0_stop(); switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - exynos4_mct_comp0_start(mode, clk_cnt_per_tick); + cycles_per_jiffy = + (((unsigned long long) NSEC_PER_SEC / HZ * evt->mult) >> evt->shift); + exynos4_mct_comp0_start(mode, cycles_per_jiffy); break; case CLOCK_EVT_MODE_ONESHOT: @@ -248,9 +252,7 @@ static struct irqaction mct_comp_event_irq = { static void exynos4_clockevent_init(void) { - clk_cnt_per_tick = clk_rate / 2 / HZ; - - clockevents_calc_mult_shift(&mct_comp_device, clk_rate / 2, 5); + clockevents_calc_mult_shift(&mct_comp_device, clk_rate, 5); mct_comp_device.max_delta_ns = clockevent_delta2ns(0xffffffff, &mct_comp_device); mct_comp_device.min_delta_ns = @@ -314,12 +316,15 @@ static inline void exynos4_tick_set_mode(enum clock_event_mode mode, struct clock_event_device *evt) { struct mct_clock_event_device *mevt = this_cpu_ptr(&percpu_mct_tick); + unsigned long cycles_per_jiffy; exynos4_mct_tick_stop(mevt); switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - exynos4_mct_tick_start(clk_cnt_per_tick, mevt); + cycles_per_jiffy = + (((unsigned long long) NSEC_PER_SEC / HZ * evt->mult) >> evt->shift); + exynos4_mct_tick_start(cycles_per_jiffy, mevt); break; case CLOCK_EVT_MODE_ONESHOT: @@ -393,7 +398,7 @@ static void exynos4_mct_tick_init(struct clock_event_device *evt) evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; evt->rating = 450; - clockevents_calc_mult_shift(evt, clk_rate / 2, 5); + clockevents_calc_mult_shift(evt, clk_rate / (TICK_BASE_CNT + 1), 5); evt->max_delta_ns = clockevent_delta2ns(0x7fffffff, evt); evt->min_delta_ns = @@ -401,7 +406,7 @@ static void exynos4_mct_tick_init(struct clock_event_device *evt) clockevents_register_device(evt); - exynos4_mct_write(0x1, mevt->base + MCT_L_TCNTB_OFFSET); + exynos4_mct_write(TICK_BASE_CNT, mevt->base + MCT_L_TCNTB_OFFSET); if (mct_int_type == MCT_INT_SPI) { if (cpu == 0) { -- cgit v1.2.3