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Message-Id: <1344552220-995-1-git-send-email-linus.walleij@linaro.org>
Date: Fri, 10 Aug 2012 00:43:40 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: swarren@...dotorg.org,
Patrice Chotard <patrice.chotard@...ricsson.com>,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 2/2] ARM: nomadik: configure Nomadik for pin control
This converts the Nomadik to using pin control using the
driver for the STN8815 ASIC.
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
arch/arm/Kconfig | 1 +
arch/arm/mach-nomadik/board-nhk8815.c | 36 +++++++++++++++++++++++++++++++++++
arch/arm/mach-nomadik/cpu-8815.c | 13 +++++++++++++
3 files changed, 50 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index e91c7cd..2bd9953 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -962,6 +962,7 @@ 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;
--
1.7.11.2
--
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