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

   1 #ifndef __ASM_MACH_GPIO_PXA_H
   2 #define __ASM_MACH_GPIO_PXA_H
   3
   4 #include <mach/addr-map.h>
   5 #include <mach/cputype.h>
   6 #include <mach/irqs.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 gpio_to_bank(gpio)      ((gpio) >> 5)
  14
  15 /* NOTE: these macros are defined here to make optimization of
  16  * gpio_{get,set}_value() to work when 'gpio' is a constant.
  17  * Usage of these macros otherwise is no longer recommended,
  18  * use generic GPIO API whenever possible.
  19  */
  20 #define GPIO_bit(gpio)  (1 << ((gpio) & 0x1f))
  21
  22 #define GPLR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00)
  23 #define GPDR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c)
  24 #define GPSR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18)
  25 #define GPCR(x)         GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24)
  26
  27 #include <plat/gpio-pxa.h>
  28
  29 #endif /* __ASM_MACH_GPIO_PXA_H */