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mach-shmobile: Emma Mobile EV2 GPIO support V3
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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>
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Magnus Damm authored and Rafael J. Wysocki committed May 17, 2012
1 parent bd5a875 commit 088efd9
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Showing 3 changed files with 207 additions and 0 deletions.
1 change: 1 addition & 0 deletions arch/arm/mach-shmobile/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -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"

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3 changes: 3 additions & 0 deletions arch/arm/mach-shmobile/include/mach/emev2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -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__ */
203 changes: 203 additions & 0 deletions arch/arm/mach-shmobile/setup-emev2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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>
Expand Down Expand Up @@ -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,
Expand All @@ -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)
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