mach-shmobile: Emma Mobile EV2 GPIO support V3

Tie in the Emma Mobile GPIO driver "em-gio" to
support the GPIOs on Emma Mobile EV2.

A static IRQ range is used to allow boards to
hook up their platform devices to the GPIOs.

DT support is still on the TODO for the GPIO driver,
so only platform device support is included here.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

3 files changed, 207 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 34c0343db11..8d3c2b18524 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -45,6 +45,7 @@ config ARCH_EMEV2
 	bool "Emma Mobile EV2"
 	select CPU_V7
 	select ARM_GIC
+	select ARCH_WANT_OPTIONAL_GPIOLIB
 
 comment "SH-Mobile Board Type"
 
diff --git a/arch/arm/mach-shmobile/include/mach/emev2.h b/arch/arm/mach-shmobile/include/mach/emev2.h
index 3fc71841985..e6b0c1bf4b7 100644
--- a/arch/arm/mach-shmobile/include/mach/emev2.h
+++ b/arch/arm/mach-shmobile/include/mach/emev2.h
@@ -13,4 +13,7 @@ extern void emev2_secondary_init(unsigned int cpu);
 extern int emev2_boot_secondary(unsigned int cpu);
 extern void emev2_smp_prepare_cpus(void);
 
+#define EMEV2_GPIO_BASE 200
+#define EMEV2_GPIO_IRQ(n) (EMEV2_GPIO_BASE + (n))
+
 #endif /* __ASM_EMEV2_H__ */
diff --git a/arch/arm/mach-shmobile/setup-emev2.c b/arch/arm/mach-shmobile/setup-emev2.c
index 2a03a78abdd..d40fede8c9b 100644
--- a/arch/arm/mach-shmobile/setup-emev2.c
+++ b/arch/arm/mach-shmobile/setup-emev2.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/platform_device.h>
+#include <linux/platform_data/gpio-em.h>
 #include <linux/delay.h>
 #include <linux/input.h>
 #include <linux/io.h>
@@ -156,6 +157,203 @@ static struct platform_device sti_device = {
 	.num_resources	= ARRAY_SIZE(sti_resources),
 };
 
+
+/* GIO */
+static struct gpio_em_config gio0_config = {
+	.gpio_base = 0,
+	.irq_base = EMEV2_GPIO_IRQ(0),
+	.number_of_pins = 32,
+};
+
+static struct resource gio0_resources[] = {
+	[0] = {
+		.name	= "GIO_000",
+		.start	= 0xe0050000,
+		.end	= 0xe005002b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_000",
+		.start	= 0xe0050040,
+		.end	= 0xe005005f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 99,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 100,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio0_device = {
+	.name		= "em_gio",
+	.id		= 0,
+	.resource	= gio0_resources,
+	.num_resources	= ARRAY_SIZE(gio0_resources),
+	.dev		= {
+		.platform_data	= &gio0_config,
+	},
+};
+
+static struct gpio_em_config gio1_config = {
+	.gpio_base = 32,
+	.irq_base = EMEV2_GPIO_IRQ(32),
+	.number_of_pins = 32,
+};
+
+static struct resource gio1_resources[] = {
+	[0] = {
+		.name	= "GIO_032",
+		.start	= 0xe0050080,
+		.end	= 0xe00500ab,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_032",
+		.start	= 0xe00500c0,
+		.end	= 0xe00500df,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 101,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 102,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio1_device = {
+	.name		= "em_gio",
+	.id		= 1,
+	.resource	= gio1_resources,
+	.num_resources	= ARRAY_SIZE(gio1_resources),
+	.dev		= {
+		.platform_data	= &gio1_config,
+	},
+};
+
+static struct gpio_em_config gio2_config = {
+	.gpio_base = 64,
+	.irq_base = EMEV2_GPIO_IRQ(64),
+	.number_of_pins = 32,
+};
+
+static struct resource gio2_resources[] = {
+	[0] = {
+		.name	= "GIO_064",
+		.start	= 0xe0050100,
+		.end	= 0xe005012b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_064",
+		.start	= 0xe0050140,
+		.end	= 0xe005015f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 103,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 104,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio2_device = {
+	.name		= "em_gio",
+	.id		= 2,
+	.resource	= gio2_resources,
+	.num_resources	= ARRAY_SIZE(gio2_resources),
+	.dev		= {
+		.platform_data	= &gio2_config,
+	},
+};
+
+static struct gpio_em_config gio3_config = {
+	.gpio_base = 96,
+	.irq_base = EMEV2_GPIO_IRQ(96),
+	.number_of_pins = 32,
+};
+
+static struct resource gio3_resources[] = {
+	[0] = {
+		.name	= "GIO_096",
+		.start	= 0xe0050100,
+		.end	= 0xe005012b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_096",
+		.start	= 0xe0050140,
+		.end	= 0xe005015f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 105,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 106,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio3_device = {
+	.name		= "em_gio",
+	.id		= 3,
+	.resource	= gio3_resources,
+	.num_resources	= ARRAY_SIZE(gio3_resources),
+	.dev		= {
+		.platform_data	= &gio3_config,
+	},
+};
+
+static struct gpio_em_config gio4_config = {
+	.gpio_base = 128,
+	.irq_base = EMEV2_GPIO_IRQ(128),
+	.number_of_pins = 31,
+};
+
+static struct resource gio4_resources[] = {
+	[0] = {
+		.name	= "GIO_128",
+		.start	= 0xe0050200,
+		.end	= 0xe005022b,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.name	= "GIO_128",
+		.start	= 0xe0050240,
+		.end	= 0xe005025f,
+		.flags	= IORESOURCE_MEM,
+	},
+	[2] = {
+		.start	= 107,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[3] = {
+		.start	= 108,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device gio4_device = {
+	.name		= "em_gio",
+	.id		= 4,
+	.resource	= gio4_resources,
+	.num_resources	= ARRAY_SIZE(gio4_resources),
+	.dev		= {
+		.platform_data	= &gio4_config,
+	},
+};
+
 static struct platform_device *emev2_early_devices[] __initdata = {
 	&uart0_device,
 	&uart1_device,
@@ -165,6 +363,11 @@ static struct platform_device *emev2_early_devices[] __initdata = {
 
 static struct platform_device *emev2_late_devices[] __initdata = {
 	&sti_device,
+	&gio0_device,
+	&gio1_device,
+	&gio2_device,
+	&gio3_device,
+	&gio4_device,
 };
 
 void __init emev2_add_standard_devices(void)