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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-30 14:04:53 +1100 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-30 14:04:53 +1100 |
commit | 9ff9a26b786c35ee8d2a66222924a807ec851a9f (patch) | |
tree | db432a17bccca1ca2c16907f0ee83ac449ed4012 /arch/arm/mach-mmp/include/mach/gpio.h | |
parent | 0a3108beea9143225119d5e7c72a8e2c64f3eb7d (diff) | |
parent | 0d34fb8e93ceba7b6dad0062dbb4a0813bacd75b (diff) | |
download | linux-9ff9a26b786c35ee8d2a66222924a807ec851a9f.tar.bz2 |
Merge commit 'origin/master' into next
Manual merge of:
arch/powerpc/include/asm/elf.h
drivers/i2c/busses/i2c-mpc.c
Diffstat (limited to 'arch/arm/mach-mmp/include/mach/gpio.h')
-rw-r--r-- | arch/arm/mach-mmp/include/mach/gpio.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-mmp/include/mach/gpio.h b/arch/arm/mach-mmp/include/mach/gpio.h new file mode 100644 index 000000000000..ab26d13295c4 --- /dev/null +++ b/arch/arm/mach-mmp/include/mach/gpio.h @@ -0,0 +1,36 @@ +#ifndef __ASM_MACH_GPIO_H +#define __ASM_MACH_GPIO_H + +#include <mach/addr-map.h> +#include <mach/irqs.h> +#include <asm-generic/gpio.h> + +#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000) + +#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) +#define GPIO_REG(x) (*((volatile u32 *)(GPIO_REGS_VIRT + (x)))) + +#define NR_BUILTIN_GPIO (128) + +#define gpio_to_bank(gpio) ((gpio) >> 5) +#define gpio_to_irq(gpio) (IRQ_GPIO_START + (gpio)) +#define irq_to_gpio(irq) ((irq) - IRQ_GPIO_START) + + +#define __gpio_is_inverted(gpio) (0) +#define __gpio_is_occupied(gpio) (0) + +/* NOTE: these macros are defined here to make optimization of + * gpio_{get,set}_value() to work when 'gpio' is a constant. + * Usage of these macros otherwise is no longer recommended, + * use generic GPIO API whenever possible. + */ +#define GPIO_bit(gpio) (1 << ((gpio) & 0x1f)) + +#define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00) +#define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c) +#define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18) +#define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24) + +#include <plat/gpio.h> +#endif /* __ASM_MACH_GPIO_H */ |