diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-07 01:33:32 +0300 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-07 01:33:32 +0300 |
commit | 404a02cbd2ae8bf256a2fa1169bdfe86bb5ebb34 (patch) | |
tree | 99119edc53fdca73ed7586829b8ee736e09440b3 /drivers/pcmcia | |
parent | 28cdac6690cb113856293bf79b40de33dbd8f974 (diff) | |
parent | 1051b9f0f9eab8091fe3bf98320741adf36b4cfa (diff) | |
download | linux-404a02cbd2ae8bf256a2fa1169bdfe86bb5ebb34.tar.xz |
Merge branch 'devel-stable' into devel
Conflicts:
arch/arm/mach-pxa/clock.c
arch/arm/mach-pxa/clock.h
Diffstat (limited to 'drivers/pcmcia')
-rw-r--r-- | drivers/pcmcia/Kconfig | 3 | ||||
-rw-r--r-- | drivers/pcmcia/Makefile | 2 | ||||
-rw-r--r-- | drivers/pcmcia/pxa2xx_balloon3.c | 11 | ||||
-rw-r--r-- | drivers/pcmcia/pxa2xx_base.c | 64 | ||||
-rw-r--r-- | drivers/pcmcia/pxa2xx_colibri.c | 229 | ||||
-rw-r--r-- | drivers/pcmcia/soc_common.h | 3 |
6 files changed, 292 insertions, 20 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index c80a7a6e7698..de886f3dfd39 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -215,7 +215,8 @@ config PCMCIA_PXA2XX depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \ || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \ || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \ - || MACH_VPAC270 || MACH_BALLOON3) + || MACH_VPAC270 || MACH_BALLOON3 || MACH_COLIBRI \ + || MACH_COLIBRI320) select PCMCIA_SOC_COMMON help Say Y here to include support for the PXA2xx PCMCIA controller diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index a565300a19c8..29935ea921df 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -71,6 +71,8 @@ pxa2xx-obj-$(CONFIG_MACH_E740) += pxa2xx_e740.o pxa2xx-obj-$(CONFIG_MACH_STARGATE2) += pxa2xx_stargate2.o pxa2xx-obj-$(CONFIG_MACH_VPAC270) += pxa2xx_vpac270.o pxa2xx-obj-$(CONFIG_MACH_BALLOON3) += pxa2xx_balloon3.o +pxa2xx-obj-$(CONFIG_MACH_COLIBRI) += pxa2xx_colibri.o +pxa2xx-obj-$(CONFIG_MACH_COLIBRI320) += pxa2xx_colibri.o obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y) diff --git a/drivers/pcmcia/pxa2xx_balloon3.c b/drivers/pcmcia/pxa2xx_balloon3.c index dbbdd0063202..453c54c97612 100644 --- a/drivers/pcmcia/pxa2xx_balloon3.c +++ b/drivers/pcmcia/pxa2xx_balloon3.c @@ -39,12 +39,10 @@ static struct pcmcia_irqs irqs[] = { static int balloon3_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { uint16_t ver; - int ret; - static void __iomem *fpga_ver; ver = __raw_readw(BALLOON3_FPGA_VER); - if (ver > 0x0201) - pr_warn("The FPGA code, version 0x%04x, is newer than rel-0.3. " + if (ver < 0x4f08) + pr_warn("The FPGA code, version 0x%04x, is too old. " "PCMCIA/CF support might be broken in this version!", ver); @@ -97,8 +95,9 @@ static void balloon3_pcmcia_socket_state(struct soc_pcmcia_socket *skt, static int balloon3_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state) { - __raw_writew((state->flags & SS_RESET) ? BALLOON3_CF_RESET : 0, - BALLOON3_CF_CONTROL_REG); + __raw_writew(BALLOON3_CF_RESET, BALLOON3_CF_CONTROL_REG | + ((state->flags & SS_RESET) ? + BALLOON3_FPGA_SETnCLR : 0)); return 0; } diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c index ae07b4db8a6e..3755e7c8c715 100644 --- a/drivers/pcmcia/pxa2xx_base.c +++ b/drivers/pcmcia/pxa2xx_base.c @@ -26,6 +26,7 @@ #include <linux/platform_device.h> #include <mach/hardware.h> +#include <mach/smemc.h> #include <asm/io.h> #include <asm/irq.h> #include <asm/system.h> @@ -116,37 +117,49 @@ static inline u_int pxa2xx_pcmcia_cmd_time(u_int mem_clk_10khz, static int pxa2xx_pcmcia_set_mcmem( int sock, int speed, int clock ) { - MCMEM(sock) = ((pxa2xx_mcxx_setup(speed, clock) + uint32_t val; + + val = ((pxa2xx_mcxx_setup(speed, clock) & MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT) | ((pxa2xx_mcxx_asst(speed, clock) & MCXX_ASST_MASK) << MCXX_ASST_SHIFT) | ((pxa2xx_mcxx_hold(speed, clock) & MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT); + __raw_writel(val, MCMEM(sock)); + return 0; } static int pxa2xx_pcmcia_set_mcio( int sock, int speed, int clock ) { - MCIO(sock) = ((pxa2xx_mcxx_setup(speed, clock) + uint32_t val; + + val = ((pxa2xx_mcxx_setup(speed, clock) & MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT) | ((pxa2xx_mcxx_asst(speed, clock) & MCXX_ASST_MASK) << MCXX_ASST_SHIFT) | ((pxa2xx_mcxx_hold(speed, clock) & MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT); + __raw_writel(val, MCIO(sock)); + return 0; } static int pxa2xx_pcmcia_set_mcatt( int sock, int speed, int clock ) { - MCATT(sock) = ((pxa2xx_mcxx_setup(speed, clock) + uint32_t val; + + val = ((pxa2xx_mcxx_setup(speed, clock) & MCXX_SETUP_MASK) << MCXX_SETUP_SHIFT) | ((pxa2xx_mcxx_asst(speed, clock) & MCXX_ASST_MASK) << MCXX_ASST_SHIFT) | ((pxa2xx_mcxx_hold(speed, clock) & MCXX_HOLD_MASK) << MCXX_HOLD_SHIFT); + __raw_writel(val, MCATT(sock)); + return 0; } @@ -166,8 +179,8 @@ static int pxa2xx_pcmcia_set_mcxx(struct soc_pcmcia_socket *skt, unsigned int cl static int pxa2xx_pcmcia_set_timing(struct soc_pcmcia_socket *skt) { - unsigned int clk = get_memclk_frequency_10khz(); - return pxa2xx_pcmcia_set_mcxx(skt, clk); + unsigned long clk = clk_get_rate(skt->clk); + return pxa2xx_pcmcia_set_mcxx(skt, clk / 10000); } #ifdef CONFIG_CPU_FREQ @@ -205,19 +218,18 @@ pxa2xx_pcmcia_frequency_change(struct soc_pcmcia_socket *skt, static void pxa2xx_configure_sockets(struct device *dev) { struct pcmcia_low_level *ops = dev->platform_data; - /* * We have at least one socket, so set MECR:CIT * (Card Is There) */ - MECR |= MECR_CIT; + uint32_t mecr = MECR_CIT; /* Set MECR:NOS (Number Of Sockets) */ if ((ops->first + ops->nr) > 1 || machine_is_viper() || machine_is_arcom_zeus()) - MECR |= MECR_NOS; - else - MECR &= ~MECR_NOS; + mecr |= MECR_NOS; + + __raw_writel(mecr, MECR); } static const char *skt_names[] = { @@ -270,24 +282,41 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev) struct pcmcia_low_level *ops; struct skt_dev_info *sinfo; struct soc_pcmcia_socket *skt; + struct clk *clk; ops = (struct pcmcia_low_level *)dev->dev.platform_data; - if (!ops) + if (!ops) { + ret = -ENODEV; + goto err0; + } + + if (cpu_is_pxa320() && ops->nr > 1) { + dev_err(&dev->dev, "pxa320 supports only one pcmcia slot"); + ret = -EINVAL; + goto err0; + } + + clk = clk_get(&dev->dev, NULL); + if (!clk) return -ENODEV; pxa2xx_drv_pcmcia_ops(ops); sinfo = kzalloc(SKT_DEV_INFO_SIZE(ops->nr), GFP_KERNEL); - if (!sinfo) + if (!sinfo) { + clk_put(clk); return -ENOMEM; + } sinfo->nskt = ops->nr; + sinfo->clk = clk; /* Initialize processor specific parameters */ for (i = 0; i < ops->nr; i++) { skt = &sinfo->skt[i]; skt->nr = ops->first + i; + skt->clk = clk; skt->ops = ops; skt->socket.owner = ops->owner; skt->socket.dev.parent = &dev->dev; @@ -295,18 +324,26 @@ static int pxa2xx_drv_pcmcia_probe(struct platform_device *dev) ret = pxa2xx_drv_pcmcia_add_one(skt); if (ret) - break; + goto err1; } if (ret) { while (--i >= 0) soc_pcmcia_remove_one(&sinfo->skt[i]); kfree(sinfo); + clk_put(clk); } else { pxa2xx_configure_sockets(&dev->dev); dev_set_drvdata(&dev->dev, sinfo); } + return 0; + +err1: + while (--i >= 0) + soc_pcmcia_remove_one(&sinfo->skt[i]); + kfree(sinfo); +err0: return ret; } @@ -320,6 +357,7 @@ static int pxa2xx_drv_pcmcia_remove(struct platform_device *dev) for (i = 0; i < sinfo->nskt; i++) soc_pcmcia_remove_one(&sinfo->skt[i]); + clk_put(sinfo->clk); kfree(sinfo); return 0; } diff --git a/drivers/pcmcia/pxa2xx_colibri.c b/drivers/pcmcia/pxa2xx_colibri.c new file mode 100644 index 000000000000..c3f72192af66 --- /dev/null +++ b/drivers/pcmcia/pxa2xx_colibri.c @@ -0,0 +1,229 @@ +/* + * linux/drivers/pcmcia/pxa2xx_colibri.c + * + * Driver for Toradex Colibri PXA270 CF socket + * + * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.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 <linux/module.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/gpio.h> + +#include <asm/mach-types.h> + +#include "soc_common.h" + +#define COLIBRI270_RESET_GPIO 53 +#define COLIBRI270_PPEN_GPIO 107 +#define COLIBRI270_BVD1_GPIO 83 +#define COLIBRI270_BVD2_GPIO 82 +#define COLIBRI270_DETECT_GPIO 84 +#define COLIBRI270_READY_GPIO 1 + +#define COLIBRI320_RESET_GPIO 77 +#define COLIBRI320_PPEN_GPIO 57 +#define COLIBRI320_BVD1_GPIO 53 +#define COLIBRI320_BVD2_GPIO 79 +#define COLIBRI320_DETECT_GPIO 81 +#define COLIBRI320_READY_GPIO 29 + +static struct { + int reset_gpio; + int ppen_gpio; + int bvd1_gpio; + int bvd2_gpio; + int detect_gpio; + int ready_gpio; +} colibri_pcmcia_gpio; + +static struct pcmcia_irqs colibri_irqs[] = { + { + .sock = 0, + .str = "PCMCIA CD" + }, +}; + +static int colibri_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + int ret; + + ret = gpio_request(colibri_pcmcia_gpio.detect_gpio, "DETECT"); + if (ret) + goto err1; + ret = gpio_direction_input(colibri_pcmcia_gpio.detect_gpio); + if (ret) + goto err2; + + ret = gpio_request(colibri_pcmcia_gpio.ready_gpio, "READY"); + if (ret) + goto err2; + ret = gpio_direction_input(colibri_pcmcia_gpio.ready_gpio); + if (ret) + goto err3; + + ret = gpio_request(colibri_pcmcia_gpio.bvd1_gpio, "BVD1"); + if (ret) + goto err3; + ret = gpio_direction_input(colibri_pcmcia_gpio.bvd1_gpio); + if (ret) + goto err4; + + ret = gpio_request(colibri_pcmcia_gpio.bvd2_gpio, "BVD2"); + if (ret) + goto err4; + ret = gpio_direction_input(colibri_pcmcia_gpio.bvd2_gpio); + if (ret) + goto err5; + + ret = gpio_request(colibri_pcmcia_gpio.ppen_gpio, "PPEN"); + if (ret) + goto err5; + ret = gpio_direction_output(colibri_pcmcia_gpio.ppen_gpio, 0); + if (ret) + goto err6; + + ret = gpio_request(colibri_pcmcia_gpio.reset_gpio, "RESET"); + if (ret) + goto err6; + ret = gpio_direction_output(colibri_pcmcia_gpio.reset_gpio, 1); + if (ret) + goto err7; + + colibri_irqs[0].irq = gpio_to_irq(colibri_pcmcia_gpio.detect_gpio); + skt->socket.pci_irq = gpio_to_irq(colibri_pcmcia_gpio.ready_gpio); + + return soc_pcmcia_request_irqs(skt, colibri_irqs, + ARRAY_SIZE(colibri_irqs)); + +err7: + gpio_free(colibri_pcmcia_gpio.detect_gpio); +err6: + gpio_free(colibri_pcmcia_gpio.ready_gpio); +err5: + gpio_free(colibri_pcmcia_gpio.bvd1_gpio); +err4: + gpio_free(colibri_pcmcia_gpio.bvd2_gpio); +err3: + gpio_free(colibri_pcmcia_gpio.reset_gpio); +err2: + gpio_free(colibri_pcmcia_gpio.ppen_gpio); +err1: + return ret; +} + +static void colibri_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) +{ + gpio_free(colibri_pcmcia_gpio.detect_gpio); + gpio_free(colibri_pcmcia_gpio.ready_gpio); + gpio_free(colibri_pcmcia_gpio.bvd1_gpio); + gpio_free(colibri_pcmcia_gpio.bvd2_gpio); + gpio_free(colibri_pcmcia_gpio.reset_gpio); + gpio_free(colibri_pcmcia_gpio.ppen_gpio); +} + +static void colibri_pcmcia_socket_state(struct soc_pcmcia_socket *skt, + struct pcmcia_state *state) +{ + + state->detect = !!gpio_get_value(colibri_pcmcia_gpio.detect_gpio); + state->ready = !!gpio_get_value(colibri_pcmcia_gpio.ready_gpio); + state->bvd1 = !!gpio_get_value(colibri_pcmcia_gpio.bvd1_gpio); + state->bvd2 = !!gpio_get_value(colibri_pcmcia_gpio.bvd2_gpio); + state->wrprot = 0; + state->vs_3v = 1; + state->vs_Xv = 0; +} + +static int +colibri_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, + const socket_state_t *state) +{ + gpio_set_value(colibri_pcmcia_gpio.ppen_gpio, + !(state->Vcc == 33 && state->Vpp < 50)); + gpio_set_value(colibri_pcmcia_gpio.reset_gpio, state->flags & SS_RESET); + return 0; +} + +static void colibri_pcmcia_socket_init(struct soc_pcmcia_socket *skt) +{ +} + +static void colibri_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) +{ +} + +static struct pcmcia_low_level colibri_pcmcia_ops = { + .owner = THIS_MODULE, + + .first = 0, + .nr = 1, + + .hw_init = colibri_pcmcia_hw_init, + .hw_shutdown = colibri_pcmcia_hw_shutdown, + + .socket_state = colibri_pcmcia_socket_state, + .configure_socket = colibri_pcmcia_configure_socket, + + .socket_init = colibri_pcmcia_socket_init, + .socket_suspend = colibri_pcmcia_socket_suspend, +}; + +static struct platform_device *colibri_pcmcia_device; + +static int __init colibri_pcmcia_init(void) +{ + int ret; + + colibri_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); + if (!colibri_pcmcia_device) + return -ENOMEM; + + /* Colibri PXA270 */ + if (machine_is_colibri()) { + colibri_pcmcia_gpio.reset_gpio = COLIBRI270_RESET_GPIO; + colibri_pcmcia_gpio.ppen_gpio = COLIBRI270_PPEN_GPIO; + colibri_pcmcia_gpio.bvd1_gpio = COLIBRI270_BVD1_GPIO; + colibri_pcmcia_gpio.bvd2_gpio = COLIBRI270_BVD2_GPIO; + colibri_pcmcia_gpio.detect_gpio = COLIBRI270_DETECT_GPIO; + colibri_pcmcia_gpio.ready_gpio = COLIBRI270_READY_GPIO; + /* Colibri PXA320 */ + } else if (machine_is_colibri320()) { + colibri_pcmcia_gpio.reset_gpio = COLIBRI320_RESET_GPIO; + colibri_pcmcia_gpio.ppen_gpio = COLIBRI320_PPEN_GPIO; + colibri_pcmcia_gpio.bvd1_gpio = COLIBRI320_BVD1_GPIO; + colibri_pcmcia_gpio.bvd2_gpio = COLIBRI320_BVD2_GPIO; + colibri_pcmcia_gpio.detect_gpio = COLIBRI320_DETECT_GPIO; + colibri_pcmcia_gpio.ready_gpio = COLIBRI320_READY_GPIO; + } + + ret = platform_device_add_data(colibri_pcmcia_device, + &colibri_pcmcia_ops, sizeof(colibri_pcmcia_ops)); + + if (!ret) + ret = platform_device_add(colibri_pcmcia_device); + + if (ret) + platform_device_put(colibri_pcmcia_device); + + return ret; +} + +static void __exit colibri_pcmcia_exit(void) +{ + platform_device_unregister(colibri_pcmcia_device); +} + +module_init(colibri_pcmcia_init); +module_exit(colibri_pcmcia_exit); + +MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); +MODULE_DESCRIPTION("PCMCIA support for Toradex Colibri PXA270/PXA320"); +MODULE_ALIAS("platform:pxa2xx-pcmcia"); +MODULE_LICENSE("GPL"); diff --git a/drivers/pcmcia/soc_common.h b/drivers/pcmcia/soc_common.h index bbcd5385a221..9daa73615c8b 100644 --- a/drivers/pcmcia/soc_common.h +++ b/drivers/pcmcia/soc_common.h @@ -10,6 +10,7 @@ #define _ASM_ARCH_PCMCIA /* include the world */ +#include <linux/clk.h> #include <linux/cpufreq.h> #include <pcmcia/ss.h> #include <pcmcia/cistpl.h> @@ -29,6 +30,7 @@ struct soc_pcmcia_socket { * Info from low level handler */ unsigned int nr; + struct clk *clk; /* * Core PCMCIA state @@ -56,6 +58,7 @@ struct soc_pcmcia_socket { struct skt_dev_info { int nskt; + struct clk *clk; struct soc_pcmcia_socket skt[0]; }; |