diff options
| author | Alessandro Rubini <rubini@gnudd.com> | 2009-07-02 15:29:12 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-07-02 21:20:45 +0100 |
| commit | 2ec1d3594563e0283873e24bb5d100dffee5d568 (patch) | |
| tree | 30b6ac6d374fac8fdf97caa7fc025015c52d0ffa /arch/arm/mach-nomadik/cpu-8815.c | |
| parent | 28ad94ec61dc60207dbffdb95ff870c617fbb832 (diff) | |
[ARM] 5584/1: nomadik: add gpio driver and devices
Signed-off-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Andrea Gallo <andrea.gallo@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-nomadik/cpu-8815.c')
| -rw-r--r-- | arch/arm/mach-nomadik/cpu-8815.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c index dec42da6956a..9917a9abdb52 100644 --- a/arch/arm/mach-nomadik/cpu-8815.c +++ b/arch/arm/mach-nomadik/cpu-8815.c @@ -19,12 +19,87 @@ #include <linux/types.h> #include <linux/init.h> #include <linux/device.h> +#include <linux/amba/bus.h> +#include <linux/gpio.h> #include <mach/hardware.h> #include <mach/irqs.h> #include <asm/mach/map.h> #include <asm/hardware/vic.h> +/* The 8815 has 4 GPIO blocks, let's register them immediately */ +static struct nmk_gpio_platform_data cpu8815_gpio[] = { + { + .name = "GPIO-0-31", + .first_gpio = 0, + .first_irq = NOMADIK_GPIO_TO_IRQ(0), + .parent_irq = IRQ_GPIO0, + }, { + .name = "GPIO-32-63", + .first_gpio = 32, + .first_irq = NOMADIK_GPIO_TO_IRQ(32), + .parent_irq = IRQ_GPIO1, + }, { + .name = "GPIO-64-95", + .first_gpio = 64, + .first_irq = NOMADIK_GPIO_TO_IRQ(64), + .parent_irq = IRQ_GPIO2, + }, { + .name = "GPIO-96-127", /* 124..127 not routed to pin */ + .first_gpio = 96, + .first_irq = NOMADIK_GPIO_TO_IRQ(96), + .parent_irq = IRQ_GPIO3, + } +}; + +#define __MEM_4K_RESOURCE(x) \ + .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} + +static struct amba_device cpu8815_amba_gpio[] = { + { + .dev = { + .init_name = "gpio0", + .platform_data = cpu8815_gpio + 0, + }, + __MEM_4K_RESOURCE(NOMADIK_GPIO0_BASE), + }, { + .dev = { + .init_name = "gpio1", + .platform_data = cpu8815_gpio + 1, + }, + __MEM_4K_RESOURCE(NOMADIK_GPIO1_BASE), + }, { + .dev = { + .init_name = "gpio2", + .platform_data = cpu8815_gpio + 2, + }, + __MEM_4K_RESOURCE(NOMADIK_GPIO2_BASE), + }, { + .dev = { + .init_name = "gpio3", + .platform_data = cpu8815_gpio + 3, + }, + __MEM_4K_RESOURCE(NOMADIK_GPIO3_BASE), + }, +}; + +static struct amba_device *amba_devs[] __initdata = { + cpu8815_amba_gpio + 0, + cpu8815_amba_gpio + 1, + cpu8815_amba_gpio + 2, + cpu8815_amba_gpio + 3, +}; + +static int __init cpu8815_init(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) + amba_device_register(amba_devs[i], &iomem_resource); + return 0; +} +arch_initcall(cpu8815_init); + /* All SoC devices live in the same area (see hardware.h) */ static struct map_desc nomadik_io_desc[] __initdata = { { |