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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 01:23:01 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 01:23:01 +0400
commitee1a8d402e7e204d57fb108aa40003b6d1633036 (patch)
tree3abf4be63d11bbbd04c89bd668a17533f942b911 /arch/arm/mach-shmobile
parent40e71e7015ab85c8606f50736525220948a3b24b (diff)
parent9686bb66a4c50e43ffee903a9fc62237ee2de1e6 (diff)
downloadlinux-ee1a8d402e7e204d57fb108aa40003b6d1633036.tar.xz
Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device tree changes from Arnd Bergmann: "These changes from 30 individual branches for the most part update device tree files, but there are also a few source code changes that have crept in this time, usually in order to atomically move over a driver from using hardcoded data to DT probing. A number of platforms change their DT files to use the C preprocessor, which is causing a bit of churn, but that is hopefully only this once" * tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits) ARM: at91: dt: rm9200ek: add spi support ARM: at91: dt: rm9200: add spi support ARM: at91/DT: at91sam9n12: add SPI DMA client infos ARM: at91/DT: sama5d3: add SPI DMA client infos ARM: at91/DT: fix SPI compatibility string ARM: Kirkwood: Fix the internal register ranges translation ARM: dts: bcm281xx: change comment to C89 style ARM: mmc: bcm281xx SDHCI driver (dt mods) ARM: nomadik: add the new clocks to the device tree clk: nomadik: implement the Nomadik clocks properly ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency ARM: dts: omap4-panda: Fix DVI EDID reads ARM: dts: omap4-panda: Add USB Host support arm: mvebu: enable mini-PCIe connectors on Armada 370 RD ARM: shmobile: irqpin: add a DT property to enable masking on parent ARM: dts: AM43x EPOS EVM support ARM: dts: OMAP5: Add bandgap DT entry ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone ...
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r--arch/arm/mach-shmobile/Kconfig14
-rw-r--r--arch/arm/mach-shmobile/Makefile1
-rw-r--r--arch/arm/mach-shmobile/board-armadillo800eva-reference.c213
-rw-r--r--arch/arm/mach-shmobile/include/mach/r8a7740.h3
-rw-r--r--arch/arm/mach-shmobile/intc-r8a7740.c24
-rw-r--r--arch/arm/mach-shmobile/setup-r8a7740.c54
6 files changed, 278 insertions, 31 deletions
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 65e1547678b0..db27e8eef192 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -105,6 +105,20 @@ config MACH_ARMADILLO800EVA
select SND_SOC_WM8978 if SND_SIMPLE_CARD
select USE_OF
+config MACH_ARMADILLO800EVA_REFERENCE
+ bool "Armadillo-800 EVA board - Reference Device Tree Implementation"
+ depends on ARCH_R8A7740
+ select ARCH_REQUIRE_GPIOLIB
+ select REGULATOR_FIXED_VOLTAGE if REGULATOR
+ select SND_SOC_WM8978 if SND_SIMPLE_CARD
+ select USE_OF
+ ---help---
+ Use reference implementation of Aramdillo800 EVA board support
+ which makes a greater use of device tree at the expense
+ of not supporting a number of devices.
+
+ This is intended to aid developers
+
config MACH_BOCKW
bool "BOCK-W platform"
depends on ARCH_R8A7778
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 76f1639c5945..6165a517f580 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -44,6 +44,7 @@ obj-$(CONFIG_MACH_MARZEN) += board-marzen.o
obj-$(CONFIG_MACH_MARZEN_REFERENCE) += board-marzen-reference.o
obj-$(CONFIG_MACH_LAGER) += board-lager.o
obj-$(CONFIG_MACH_ARMADILLO800EVA) += board-armadillo800eva.o
+obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += board-armadillo800eva-reference.o
obj-$(CONFIG_MACH_KZM9D) += board-kzm9d.o
obj-$(CONFIG_MACH_KZM9G) += board-kzm9g.o
obj-$(CONFIG_MACH_KZM9G_REFERENCE) += board-kzm9g-reference.o
diff --git a/arch/arm/mach-shmobile/board-armadillo800eva-reference.c b/arch/arm/mach-shmobile/board-armadillo800eva-reference.c
new file mode 100644
index 000000000000..03b85fec2ddb
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-armadillo800eva-reference.c
@@ -0,0 +1,213 @@
+/*
+ * armadillo 800 eva board support
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * 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 St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/pinctrl/machine.h>
+#include <mach/common.h>
+#include <mach/r8a7740.h>
+#include <asm/mach/arch.h>
+#include <asm/hardware/cache-l2x0.h>
+
+/*
+ * CON1 Camera Module
+ * CON2 Extension Bus
+ * CON3 HDMI Output
+ * CON4 Composite Video Output
+ * CON5 H-UDI JTAG
+ * CON6 ARM JTAG
+ * CON7 SD1
+ * CON8 SD2
+ * CON9 RTC BackUp
+ * CON10 Monaural Mic Input
+ * CON11 Stereo Headphone Output
+ * CON12 Audio Line Output(L)
+ * CON13 Audio Line Output(R)
+ * CON14 AWL13 Module
+ * CON15 Extension
+ * CON16 LCD1
+ * CON17 LCD2
+ * CON19 Power Input
+ * CON20 USB1
+ * CON21 USB2
+ * CON22 Serial
+ * CON23 LAN
+ * CON24 USB3
+ * LED1 Camera LED(Yellow)
+ * LED2 Power LED (Green)
+ * ED3-LED6 User LED(Yellow)
+ * LED7 LAN link LED(Green)
+ * LED8 LAN activity LED(Yellow)
+ */
+
+/*
+ * DipSwitch
+ *
+ * SW1
+ *
+ * -12345678-+---------------+----------------------------
+ * 1 | boot | hermit
+ * 0 | boot | OS auto boot
+ * -12345678-+---------------+----------------------------
+ * 00 | boot device | eMMC
+ * 10 | boot device | SDHI0 (CON7)
+ * 01 | boot device | -
+ * 11 | boot device | Extension Buss (CS0)
+ * -12345678-+---------------+----------------------------
+ * 0 | Extension Bus | D8-D15 disable, eMMC enable
+ * 1 | Extension Bus | D8-D15 enable, eMMC disable
+ * -12345678-+---------------+----------------------------
+ * 0 | SDHI1 | COM8 disable, COM14 enable
+ * 1 | SDHI1 | COM8 enable, COM14 disable
+ * -12345678-+---------------+----------------------------
+ * 0 | USB0 | COM20 enable, COM24 disable
+ * 1 | USB0 | COM20 disable, COM24 enable
+ * -12345678-+---------------+----------------------------
+ * 00 | JTAG | SH-X2
+ * 10 | JTAG | ARM
+ * 01 | JTAG | -
+ * 11 | JTAG | Boundary Scan
+ *-----------+---------------+----------------------------
+ */
+
+/*
+ * FSI-WM8978
+ *
+ * this command is required when playback.
+ *
+ * # amixer set "Headphone" 50
+ *
+ * this command is required when capture.
+ *
+ * # amixer set "Input PGA" 15
+ * # amixer set "Left Input Mixer MicP" on
+ * # amixer set "Left Input Mixer MicN" on
+ * # amixer set "Right Input Mixer MicN" on
+ * # amixer set "Right Input Mixer MicP" on
+ */
+
+/*
+ * USB function
+ *
+ * When you use USB Function,
+ * set SW1.6 ON, and connect cable to CN24.
+ *
+ * USBF needs workaround on R8A7740 chip.
+ * These are a little bit complex.
+ * see
+ * usbhsf_power_ctrl()
+ */
+
+static const struct pinctrl_map eva_pinctrl_map[] = {
+ /* SCIFA1 */
+ PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.1", "pfc-r8a7740",
+ "scifa1_data", "scifa1"),
+};
+
+static void __init eva_clock_init(void)
+{
+ struct clk *system = clk_get(NULL, "system_clk");
+ struct clk *xtal1 = clk_get(NULL, "extal1");
+ struct clk *usb24s = clk_get(NULL, "usb24s");
+ struct clk *fsibck = clk_get(NULL, "fsibck");
+
+ if (IS_ERR(system) ||
+ IS_ERR(xtal1) ||
+ IS_ERR(usb24s) ||
+ IS_ERR(fsibck)) {
+ pr_err("armadillo800eva board clock init failed\n");
+ goto clock_error;
+ }
+
+ /* armadillo 800 eva extal1 is 24MHz */
+ clk_set_rate(xtal1, 24000000);
+
+ /* usb24s use extal1 (= system) clock (= 24MHz) */
+ clk_set_parent(usb24s, system);
+
+ /* FSIBCK is 12.288MHz, and it is parent of FSI-B */
+ clk_set_rate(fsibck, 12288000);
+
+clock_error:
+ if (!IS_ERR(system))
+ clk_put(system);
+ if (!IS_ERR(xtal1))
+ clk_put(xtal1);
+ if (!IS_ERR(usb24s))
+ clk_put(usb24s);
+ if (!IS_ERR(fsibck))
+ clk_put(fsibck);
+}
+
+/*
+ * board init
+ */
+static void __init eva_init(void)
+{
+
+ r8a7740_clock_init(MD_CK0 | MD_CK2);
+ eva_clock_init();
+
+ pinctrl_register_mappings(eva_pinctrl_map, ARRAY_SIZE(eva_pinctrl_map));
+ r8a7740_pinmux_init();
+
+ r8a7740_meram_workaround();
+
+ /*
+ * Touchscreen
+ * TODO: Move reset GPIO over to .dts when we can reference it
+ */
+ gpio_request_one(166, GPIOF_OUT_INIT_HIGH, NULL); /* TP_RST_B */
+
+#ifdef CONFIG_CACHE_L2X0
+ /* Early BRESP enable, Shared attribute override enable, 32K*8way */
+ l2x0_init(IOMEM(0xf0002000), 0x40440000, 0x82000fff);
+#endif
+
+ r8a7740_add_standard_devices_dt();
+ r8a7740_pm_init();
+}
+
+#define RESCNT2 IOMEM(0xe6188020)
+static void eva_restart(char mode, const char *cmd)
+{
+ /* Do soft power on reset */
+ writel((1 << 31), RESCNT2);
+}
+
+static const char *eva_boards_compat_dt[] __initdata = {
+ "renesas,armadillo800eva-reference",
+ NULL,
+};
+
+DT_MACHINE_START(ARMADILLO800EVA_DT, "armadillo800eva-reference")
+ .map_io = r8a7740_map_io,
+ .init_early = r8a7740_init_delay,
+ .init_irq = r8a7740_init_irq_of,
+ .init_machine = eva_init,
+ .init_time = shmobile_timer_init,
+ .init_late = shmobile_init_late,
+ .dt_compat = eva_boards_compat_dt,
+ .restart = eva_restart,
+MACHINE_END
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h
index 9c9a66ccaf6f..b34d19b5ca5c 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7740.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h
@@ -45,10 +45,13 @@ enum {
};
extern void r8a7740_meram_workaround(void);
+extern void r8a7740_init_delay(void);
extern void r8a7740_init_irq(void);
+extern void r8a7740_init_irq_of(void);
extern void r8a7740_map_io(void);
extern void r8a7740_add_early_devices(void);
extern void r8a7740_add_standard_devices(void);
+extern void r8a7740_add_standard_devices_dt(void);
extern void r8a7740_clock_init(u8 md_ck);
extern void r8a7740_pinmux_init(void);
extern void r8a7740_pm_init(void);
diff --git a/arch/arm/mach-shmobile/intc-r8a7740.c b/arch/arm/mach-shmobile/intc-r8a7740.c
index b741c8409a5a..8871f7717dc8 100644
--- a/arch/arm/mach-shmobile/intc-r8a7740.c
+++ b/arch/arm/mach-shmobile/intc-r8a7740.c
@@ -20,19 +20,15 @@
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/irqchip.h>
#include <linux/irqchip/arm-gic.h>
-void __init r8a7740_init_irq(void)
+static void __init r8a7740_init_irq_common(void)
{
- void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000);
- void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000);
void __iomem *intc_prio_base = ioremap_nocache(0xe6900010, 0x10);
void __iomem *intc_msk_base = ioremap_nocache(0xe6900040, 0x10);
void __iomem *pfc_inta_ctrl = ioremap_nocache(0xe605807c, 0x4);
- /* initialize the Generic Interrupt Controller PL390 r0p0 */
- gic_init(0, 29, gic_dist_base, gic_cpu_base);
-
/* route signals to GIC */
iowrite32(0x0, pfc_inta_ctrl);
@@ -54,3 +50,19 @@ void __init r8a7740_init_irq(void)
iounmap(intc_msk_base);
iounmap(pfc_inta_ctrl);
}
+
+void __init r8a7740_init_irq_of(void)
+{
+ irqchip_init();
+ r8a7740_init_irq_common();
+}
+
+void __init r8a7740_init_irq(void)
+{
+ void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000);
+ void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000);
+
+ /* initialize the Generic Interrupt Controller PL390 r0p0 */
+ gic_init(0, 29, gic_dist_base, gic_cpu_base);
+ r8a7740_init_irq_common();
+}
diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 3a6b6fe7b6c0..00c5a707238b 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -517,11 +517,7 @@ static struct platform_device ipmmu_device = {
.num_resources = ARRAY_SIZE(ipmmu_resources),
};
-static struct platform_device *r8a7740_early_devices[] __initdata = {
- &irqpin0_device,
- &irqpin1_device,
- &irqpin2_device,
- &irqpin3_device,
+static struct platform_device *r8a7740_devices_dt[] __initdata = {
&scif0_device,
&scif1_device,
&scif2_device,
@@ -532,6 +528,13 @@ static struct platform_device *r8a7740_early_devices[] __initdata = {
&scif7_device,
&scifb_device,
&cmt10_device,
+};
+
+static struct platform_device *r8a7740_early_devices[] __initdata = {
+ &irqpin0_device,
+ &irqpin1_device,
+ &irqpin2_device,
+ &irqpin3_device,
&tmu00_device,
&tmu01_device,
&tmu02_device,
@@ -951,6 +954,8 @@ void __init r8a7740_add_standard_devices(void)
/* add devices */
platform_add_devices(r8a7740_early_devices,
ARRAY_SIZE(r8a7740_early_devices));
+ platform_add_devices(r8a7740_devices_dt,
+ ARRAY_SIZE(r8a7740_devices_dt));
platform_add_devices(r8a7740_late_devices,
ARRAY_SIZE(r8a7740_late_devices));
@@ -972,6 +977,8 @@ void __init r8a7740_add_early_devices(void)
{
early_platform_add_devices(r8a7740_early_devices,
ARRAY_SIZE(r8a7740_early_devices));
+ early_platform_add_devices(r8a7740_devices_dt,
+ ARRAY_SIZE(r8a7740_devices_dt));
/* setup early console here as well */
shmobile_setup_console();
@@ -979,33 +986,29 @@ void __init r8a7740_add_early_devices(void)
#ifdef CONFIG_USE_OF
-void __init r8a7740_add_early_devices_dt(void)
-{
- shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */
-
- early_platform_add_devices(r8a7740_early_devices,
- ARRAY_SIZE(r8a7740_early_devices));
-
- /* setup early console here as well */
- shmobile_setup_console();
-}
-
static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = {
{ }
};
void __init r8a7740_add_standard_devices_dt(void)
{
- /* clocks are setup late during boot in the case of DT */
- r8a7740_clock_init(0);
-
- platform_add_devices(r8a7740_early_devices,
- ARRAY_SIZE(r8a7740_early_devices));
-
+ platform_add_devices(r8a7740_devices_dt,
+ ARRAY_SIZE(r8a7740_devices_dt));
of_platform_populate(NULL, of_default_bus_match_table,
r8a7740_auxdata_lookup, NULL);
}
+void __init r8a7740_init_delay(void)
+{
+ shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */
+};
+
+static void __init r8a7740_generic_init(void)
+{
+ r8a7740_clock_init(0);
+ r8a7740_add_standard_devices_dt();
+}
+
static const char *r8a7740_boards_compat_dt[] __initdata = {
"renesas,r8a7740",
NULL,
@@ -1013,9 +1016,10 @@ static const char *r8a7740_boards_compat_dt[] __initdata = {
DT_MACHINE_START(R8A7740_DT, "Generic R8A7740 (Flattened Device Tree)")
.map_io = r8a7740_map_io,
- .init_early = r8a7740_add_early_devices_dt,
- .init_irq = r8a7740_init_irq,
- .init_machine = r8a7740_add_standard_devices_dt,
+ .init_early = r8a7740_init_delay,
+ .init_irq = r8a7740_init_irq_of,
+ .init_machine = r8a7740_generic_init,
+ .init_time = shmobile_timer_init,
.dt_compat = r8a7740_boards_compat_dt,
MACHINE_END