[PATCH 3/5] ARM: Exynos4: Add pinctrl devices and pin maps
Thomas Abraham
thomas.abraham at linaro.org
Sun Mar 11 08:46:03 EDT 2012
Add the three pinctrl platform devices and the pin maps for Exynos4.
Signed-off-by: Thomas Abraham <thomas.abraham at linaro.org>
---
arch/arm/mach-exynos/Kconfig | 1 +
arch/arm/mach-exynos/Makefile | 1 +
arch/arm/mach-exynos/common.h | 6 ++
arch/arm/mach-exynos/dev-pinctrl.c | 115 +++++++++++++++++++++++++++++
arch/arm/plat-samsung/include/plat/devs.h | 3 +
5 files changed, 126 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-exynos/dev-pinctrl.c
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index c49d450..3e6a1cd 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -18,6 +18,7 @@ choice
config ARCH_EXYNOS4
bool "SAMSUNG EXYNOS4"
select HAVE_SMP
+ select PINCTRL
select MIGHT_HAVE_CACHE_L2X0
help
Samsung EXYNOS4 SoCs based systems
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 6fd8dd9..dbac5f9 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o
obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o
obj-$(CONFIG_EXYNOS4_DEV_DMA) += dma.o
obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI) += dev-ohci.o
+obj-$(CONFIG_PINCTRL_SAMSUNG) += dev-pinctrl.o
obj-$(CONFIG_ARCH_EXYNOS) += setup-i2c0.o
obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 677b546..64f3c57 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -52,4 +52,10 @@ void exynos4212_register_clocks(void);
#define exynos4212_register_clocks()
#endif
+#ifdef CONFIG_PINCTRL_SAMSUNG
+extern int exynos4210_pinctrl_register_def_mappings(void);
+#else
+#define exynos4210_pinctrl_register_def_mappings()
+#endif
+
#endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */
diff --git a/arch/arm/mach-exynos/dev-pinctrl.c b/arch/arm/mach-exynos/dev-pinctrl.c
new file mode 100644
index 0000000..d909052
--- /dev/null
+++ b/arch/arm/mach-exynos/dev-pinctrl.c
@@ -0,0 +1,115 @@
+/*
+ * platform device for all the instances of pinctrl.
+ *
+ * Copyright (c) 2012 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 as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/pinctrl/machine.h>
+
+#include <plat/devs.h>
+#include <plat/pinctrl.h>
+
+#include <mach/map.h>
+
+static struct resource exynos4_pinctrl_resource0[] = {
+ [0] = {
+ .start = EXYNOS4_PA_GPIO1,
+ .end = EXYNOS4_PA_GPIO1 + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_GPIO_XA,
+ .end = IRQ_GPIO_XA,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device exynos4_pinctrl0 = {
+ .name = "exynos4-pinctrl",
+ .id = 0,
+ .resource = exynos4_pinctrl_resource0,
+ .num_resources = ARRAY_SIZE(exynos4_pinctrl_resource0),
+};
+
+static struct resource exynos4_pinctrl_resource1[] = {
+ [0] = {
+ .start = EXYNOS4_PA_GPIO2,
+ .end = EXYNOS4_PA_GPIO2 + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = IRQ_GPIO_XB,
+ .end = IRQ_GPIO_XB,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device exynos4_pinctrl1 = {
+ .name = "exynos4-pinctrl",
+ .id = 1,
+ .resource = exynos4_pinctrl_resource1,
+ .num_resources = ARRAY_SIZE(exynos4_pinctrl_resource1),
+};
+
+static struct resource exynos4_pinctrl_resource2[] = {
+ [0] = {
+ .start = EXYNOS4_PA_GPIO3,
+ .end = EXYNOS4_PA_GPIO3 + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+struct platform_device exynos4_pinctrl2 = {
+ .name = "exynos4-pinctrl",
+ .id = 2,
+ .resource = exynos4_pinctrl_resource2,
+ .num_resources = ARRAY_SIZE(exynos4_pinctrl_resource2),
+};
+
+/* pin config options. todo: add other options here. */
+static unsigned long pcfg_pu_drv3[] __initdata = {
+ PINCTRL_CFG_PACK(PUD_UP, DRV_4X),
+};
+
+static unsigned long pcfg_pn_drv3[] __initdata = {
+ PINCTRL_CFG_PACK(PUD_NONE, DRV_4X),
+};
+
+/* Exynos4210 SoC default pin-maps reusable by Exynos4210 based boards*/
+
+static struct pinctrl_map __initdata exynos4210_sdhci2_8bit_map[] = {
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_ctrl_grp", "sdhci2-mux"),
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_cd_grp", "sdhci2-mux"),
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_4bit_grp", "sdhci2-mux"),
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_8bit_grp", "sdhci2-mux"),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_ctrl_grp", pcfg_pn_drv3),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_cd_grp", pcfg_pu_drv3),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_4bit_grp", pcfg_pu_drv3),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg8", "exynos4-pinctrl.1", "sdhci2_8bit_grp", pcfg_pu_drv3),
+};
+
+static struct pinctrl_map __initdata exynos4210_sdhci2_4bit_map[] = {
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg4", "exynos4-pinctrl.1", "sdhci2_ctrl_grp", "sdhci2-mux"),
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg4", "exynos4-pinctrl.1", "sdhci2_cd_grp", "sdhci2-mux"),
+ PIN_MAP_MUX_GROUP("exynos4-sdhci.2", "sdhci-pcfg4", "exynos4-pinctrl.1", "sdhci2_4bit_grp", "sdhci2-mux"),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg4", "exynos4-pinctrl.1", "sdhci2_ctrl_grp", pcfg_pn_drv3),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg4", "exynos4-pinctrl.1", "sdhci2_cd_grp", pcfg_pu_drv3),
+ PIN_MAP_CONFIGS_GROUP("exynos4-sdhci.2", "sdhci-pcfg4", "exynos4-pinctrl.1", "sdhci2_4bit_grp", pcfg_pu_drv3),
+};
+
+int __init exynos4210_pinctrl_register_def_mappings(void)
+{
+ pinctrl_register_mappings(exynos4210_sdhci2_8bit_map, ARRAY_SIZE(exynos4210_sdhci2_8bit_map));
+ pinctrl_register_mappings(exynos4210_sdhci2_4bit_map, ARRAY_SIZE(exynos4210_sdhci2_4bit_map));
+ return 0;
+}
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 2dd5267..760445f 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -133,6 +133,9 @@ extern struct platform_device exynos4_device_pcm2;
extern struct platform_device exynos4_device_pd[];
extern struct platform_device exynos4_device_spdif;
extern struct platform_device exynos4_device_sysmmu;
+extern struct platform_device exynos4_pinctrl0;
+extern struct platform_device exynos4_pinctrl1;
+extern struct platform_device exynos4_pinctrl2;
extern struct platform_device samsung_asoc_dma;
extern struct platform_device samsung_asoc_idma;
--
1.6.6.rc2
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