| Eric Miao | e2bb665 | 2009-01-20 14:38:24 +0800 | [diff] [blame] | 1 | #ifndef __ASM_MACH_GPIO_H |
| 2 | #define __ASM_MACH_GPIO_H |
| 3 | |
| 4 | #include <mach/addr-map.h> |
| 5 | #include <mach/irqs.h> |
| 6 | #include <asm-generic/gpio.h> |
| 7 | |
| 8 | #define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000) |
| 9 | |
| 10 | #define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) |
| 11 | #define GPIO_REG(x) (*((volatile u32 *)(GPIO_REGS_VIRT + (x)))) |
| 12 | |
| 13 | #define NR_BUILTIN_GPIO (128) |
| 14 | |
| 15 | #define gpio_to_bank(gpio) ((gpio) >> 5) |
| 16 | #define gpio_to_irq(gpio) (IRQ_GPIO_START + (gpio)) |
| 17 | #define irq_to_gpio(irq) ((irq) - IRQ_GPIO_START) |
| 18 | |
| 19 | |
| 20 | #define __gpio_is_inverted(gpio) (0) |
| 21 | #define __gpio_is_occupied(gpio) (0) |
| 22 | |
| 23 | /* NOTE: these macros are defined here to make optimization of |
| 24 | * gpio_{get,set}_value() to work when 'gpio' is a constant. |
| 25 | * Usage of these macros otherwise is no longer recommended, |
| 26 | * use generic GPIO API whenever possible. |
| 27 | */ |
| 28 | #define GPIO_bit(gpio) (1 << ((gpio) & 0x1f)) |
| 29 | |
| 30 | #define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00) |
| 31 | #define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c) |
| 32 | #define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18) |
| 33 | #define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24) |
| 34 | |
| 35 | #include <plat/gpio.h> |
| 36 | #endif /* __ASM_MACH_GPIO_H */ |