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authorLinus Walleij <linus.walleij@linaro.org>2012-08-10 00:43:40 +0200
committerLinus Walleij <linus.walleij@linaro.org>2012-09-03 13:21:37 +0200
commit2601ccfeac08ae5e9165ef3942e6d45611de6fd1 (patch)
tree092323e611d993e8d9b7eeb7d9669e2da769d011
parentf79c5ed9dab3ae80f6cbe9edaafbc8a4dadb8408 (diff)
downloadop-kernel-dev-2601ccfeac08ae5e9165ef3942e6d45611de6fd1.zip
op-kernel-dev-2601ccfeac08ae5e9165ef3942e6d45611de6fd1.tar.gz
ARM: nomadik: configure Nomadik for pin control
This converts the Nomadik to using pin control using the driver for the STN8815 ASIC. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/arm/mach-nomadik/board-nhk8815.c36
-rw-r--r--arch/arm/mach-nomadik/cpu-8815.c13
3 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c5f9ae5..1d4dd81 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -956,6 +956,7 @@ config ARCH_NOMADIK
select COMMON_CLK
select GENERIC_CLOCKEVENTS
select PINCTRL
+ select PINCTRL_STN8815
select MIGHT_HAVE_CACHE_L2X0
select ARCH_REQUIRE_GPIOLIB
help
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c
index f4535a7..66862fb 100644
--- a/arch/arm/mach-nomadik/board-nhk8815.c
+++ b/arch/arm/mach-nomadik/board-nhk8815.c
@@ -23,6 +23,7 @@
#include <linux/mtd/partitions.h>
#include <linux/i2c.h>
#include <linux/io.h>
+#include <linux/pinctrl/machine.h>
#include <asm/hardware/vic.h>
#include <asm/sizes.h>
#include <asm/mach-types.h>
@@ -33,6 +34,7 @@
#include <plat/gpio-nomadik.h>
#include <plat/mtu.h>
+#include <plat/pincfg.h>
#include <mach/nand.h>
#include <mach/fsmc.h>
@@ -291,8 +293,42 @@ static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
},
};
+static unsigned long out_low[] = { PIN_OUTPUT_LOW };
+static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
+static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
+static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
+
+static struct pinctrl_map __initdata nhk8815_pinmap[] = {
+ PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
+ PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
+ /* Hog in MMC/SD card mux */
+ PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
+ /* MCCLK */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
+ /* MCCMD */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
+ /* MCCMDDIR */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
+ /* MCDAT3-0 */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
+ /* MCDAT0DIR */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
+ /* MCDAT31DIR */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
+ /* MCMSFBCLK */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
+ /* CD input GPIO */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
+ /* CD bias drive */
+ PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
+};
+
static void __init nhk8815_platform_init(void)
{
+ pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
cpu8815_platform_init();
nhk8815_onenand_init();
platform_add_devices(nhk8815_platform_devices,
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 6fd8e46..b617eae 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -83,6 +83,18 @@ void cpu8815_add_gpios(resource_size_t *base, int num, int irq,
}
}
+static inline void
+cpu8815_add_pinctrl(struct device *parent, const char *name)
+{
+ struct platform_device_info pdevinfo = {
+ .parent = parent,
+ .name = name,
+ .id = -1,
+ };
+
+ platform_device_register_full(&pdevinfo);
+}
+
static int __init cpu8815_init(void)
{
struct nmk_gpio_platform_data pdata = {
@@ -91,6 +103,7 @@ static int __init cpu8815_init(void)
cpu8815_add_gpios(cpu8815_gpio_base, ARRAY_SIZE(cpu8815_gpio_base),
IRQ_GPIO0, &pdata);
+ cpu8815_add_pinctrl(NULL, "pinctrl-stn8815");
amba_apb_device_add(NULL, "rng", NOMADIK_RNG_BASE, SZ_4K, 0, 0, NULL, 0);
amba_apb_device_add(NULL, "rtc-pl031", NOMADIK_RTC_BASE, SZ_4K, IRQ_RTC_RTT, 0, NULL, 0);
return 0;
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