arch/arm/mach-mmp/include/mach/gpio.h

   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         IRQ_GPIO_NUM
  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 */