From: Rabin Vincent Date: Wed, 3 Mar 2010 03:54:37 +0000 (+0100) Subject: ARM: 5973/1: ux500: add gpio support X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=94bdc0e2d76c5f2467346bf14e7e16d6d8e0395d;p=linux-beck.git ARM: 5973/1: ux500: add gpio support Add support for the GPIOs on the U8500, using the plat-nomadik GPIO driver. Acked-by: Linus Walleij Acked-by: Srinidhi Kasagar Signed-off-by: Rabin Vincent Signed-off-by: Russell King --- diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c5408bf1bf43..540f85922113 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -756,6 +756,7 @@ config ARCH_U8500 select GENERIC_TIME select GENERIC_CLOCKEVENTS select COMMON_CLKDEV + select ARCH_REQUIRE_GPIOLIB help Support for ST-Ericsson's Ux500 architecture diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 03625d744857..cd412a3e0ab8 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -8,6 +8,7 @@ config MACH_U8500_MOP default y select ARM_GIC select HAS_MTU + select NOMADIK_GPIO help Include support for mop500 development platform based on U8500 architecture. The platform is based diff --git a/arch/arm/mach-ux500/cpu-u8500.c b/arch/arm/mach-ux500/cpu-u8500.c index 09bcba1ccef1..5fb44661adaf 100644 --- a/arch/arm/mach-ux500/cpu-u8500.c +++ b/arch/arm/mach-ux500/cpu-u8500.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include @@ -23,9 +24,82 @@ #include #include -/* add any platform devices here - TODO */ +#define GPIO_RESOURCE(block) \ + { \ + .start = U8500_GPIOBANK##block##_BASE, \ + .end = U8500_GPIOBANK##block##_BASE + 127, \ + .flags = IORESOURCE_MEM, \ + }, \ + { \ + .start = IRQ_GPIO##block, \ + .end = IRQ_GPIO##block, \ + .flags = IORESOURCE_IRQ, \ + } + +#define GPIO_DEVICE(block) \ + { \ + .name = "gpio", \ + .id = block, \ + .num_resources = 2, \ + .resource = &u8500_gpio_resources[block * 2], \ + .dev = { \ + .platform_data = &u8500_gpio_data[block], \ + }, \ + } + +#define GPIO_DATA(_name, first) \ + { \ + .name = _name, \ + .first_gpio = first, \ + .first_irq = NOMADIK_GPIO_TO_IRQ(first), \ + } + +static struct nmk_gpio_platform_data u8500_gpio_data[] = { + GPIO_DATA("GPIO-0-31", 0), + GPIO_DATA("GPIO-32-63", 32), /* 37..63 not routed to pin */ + GPIO_DATA("GPIO-64-95", 64), + GPIO_DATA("GPIO-96-127", 96), /* 97..127 not routed to pin */ + GPIO_DATA("GPIO-128-159", 128), + GPIO_DATA("GPIO-160-191", 160), /* 172..191 not routed to pin */ + GPIO_DATA("GPIO-192-223", 192), + GPIO_DATA("GPIO-224-255", 224), /* 231..255 not routed to pin */ + GPIO_DATA("GPIO-256-288", 256), /* 258..288 not routed to pin */ +}; + +static struct resource u8500_gpio_resources[] = { + GPIO_RESOURCE(0), + GPIO_RESOURCE(1), + GPIO_RESOURCE(2), + GPIO_RESOURCE(3), + GPIO_RESOURCE(4), + GPIO_RESOURCE(5), + GPIO_RESOURCE(6), + GPIO_RESOURCE(7), + GPIO_RESOURCE(8), +}; + +static struct platform_device u8500_gpio_devs[] = { + GPIO_DEVICE(0), + GPIO_DEVICE(1), + GPIO_DEVICE(2), + GPIO_DEVICE(3), + GPIO_DEVICE(4), + GPIO_DEVICE(5), + GPIO_DEVICE(6), + GPIO_DEVICE(7), + GPIO_DEVICE(8), +}; + static struct platform_device *platform_devs[] __initdata = { - /* yet to be added, add i2c0, gpio.. */ + &u8500_gpio_devs[0], + &u8500_gpio_devs[1], + &u8500_gpio_devs[2], + &u8500_gpio_devs[3], + &u8500_gpio_devs[4], + &u8500_gpio_devs[5], + &u8500_gpio_devs[6], + &u8500_gpio_devs[7], + &u8500_gpio_devs[8], }; #define __IO_DEV_DESC(x, sz) { \ @@ -49,6 +123,10 @@ static struct map_desc u8500_io_desc[] __initdata = { __IO_DEV_DESC(U8500_CLKRST3_BASE, SZ_4K), __IO_DEV_DESC(U8500_CLKRST5_BASE, SZ_4K), __IO_DEV_DESC(U8500_CLKRST6_BASE, SZ_4K), + __IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K), + __IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K), + __IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K), + __IO_DEV_DESC(U8500_GPIO5_BASE, SZ_4K), }; static struct map_desc u8500ed_io_desc[] __initdata = { diff --git a/arch/arm/mach-ux500/include/mach/gpio.h b/arch/arm/mach-ux500/include/mach/gpio.h new file mode 100644 index 000000000000..3c4cd31ad9f7 --- /dev/null +++ b/arch/arm/mach-ux500/include/mach/gpio.h @@ -0,0 +1,12 @@ +#ifndef __ASM_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H + +/* + * 288 (#267 is the highest one actually hooked up) onchip GPIOs, plus enough + * room for a couple of GPIO expanders. + */ +#define ARCH_NR_GPIOS 350 + +#include + +#endif /* __ASM_ARCH_GPIO_H */ diff --git a/arch/arm/mach-ux500/include/mach/hardware.h b/arch/arm/mach-ux500/include/mach/hardware.h index f29a43d9d45a..99ca89fe9b30 100644 --- a/arch/arm/mach-ux500/include/mach/hardware.h +++ b/arch/arm/mach-ux500/include/mach/hardware.h @@ -23,6 +23,8 @@ /* typesafe io address */ #define __io_address(n) __io(IO_ADDRESS(n)) +/* used by some plat-nomadik code */ +#define io_p2v(n) __io_address(n) /* * Base address definitions for U8500 Onchip IPs. All the @@ -128,6 +130,16 @@ #define U8500_GPIO1_BASE (U8500_PER1_BASE + 0xe000) #define U8500_CLKRST1_BASE (U8500_PER1_BASE + 0xf000) +#define U8500_GPIOBANK0_BASE U8500_GPIO1_BASE +#define U8500_GPIOBANK1_BASE (U8500_GPIO1_BASE + 0x80) +#define U8500_GPIOBANK2_BASE U8500_GPIO3_BASE +#define U8500_GPIOBANK3_BASE (U8500_GPIO3_BASE + 0x80) +#define U8500_GPIOBANK4_BASE (U8500_GPIO3_BASE + 0x100) +#define U8500_GPIOBANK5_BASE (U8500_GPIO3_BASE + 0x180) +#define U8500_GPIOBANK6_BASE U8500_GPIO2_BASE +#define U8500_GPIOBANK7_BASE (U8500_GPIO2_BASE + 0x80) +#define U8500_GPIOBANK8_BASE U8500_GPIO5_BASE + /* ST-Ericsson modified pl022 id */ #define SSP_PER_ID 0x01080022 diff --git a/arch/arm/mach-ux500/include/mach/irqs.h b/arch/arm/mach-ux500/include/mach/irqs.h index 394b5dd2200f..8a1f6976c245 100644 --- a/arch/arm/mach-ux500/include/mach/irqs.h +++ b/arch/arm/mach-ux500/include/mach/irqs.h @@ -66,6 +66,12 @@ /* There are 128 shared peripheral interrupts assigned to * INTID[160:32]. The first 32 interrupts are reserved. */ -#define NR_IRQS 161 +#define U8500_SOC_NR_IRQS 161 + +/* After chip-specific IRQ numbers we have the GPIO ones */ +#define NOMADIK_NR_GPIO 288 +#define NOMADIK_GPIO_TO_IRQ(gpio) ((gpio) + U8500_SOC_NR_IRQS) +#define NOMADIK_IRQ_TO_GPIO(irq) ((irq) - U8500_SOC_NR_IRQS) +#define NR_IRQS NOMADIK_GPIO_TO_IRQ(NOMADIK_NR_GPIO) #endif /*ASM_ARCH_IRQS_H*/