release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-mv78xx0/include/mach/gpio.h

   1 /*
   2  * arch/asm-arm/mach-mv78xx0/include/mach/gpio.h
   3  *
   4  * This file is licensed under the terms of the GNU General Public
   5  * License version 2.  This program is licensed "as is" without any
   6  * warranty of any kind, whether express or implied.
   7  */
   8
   9 #ifndef __ASM_ARCH_GPIO_H
  10 #define __ASM_ARCH_GPIO_H
  11
  12 #include <mach/irqs.h>
  13 #include <plat/gpio.h>
  14 #include <asm-generic/gpio.h>           /* cansleep wrappers */
  15
  16 extern int mv78xx0_core_index(void);
  17
  18 #define GPIO_MAX                32
  19 #define GPIO_OUT(pin)           (DEV_BUS_VIRT_BASE + 0x0100)
  20 #define GPIO_IO_CONF(pin)       (DEV_BUS_VIRT_BASE + 0x0104)
  21 #define GPIO_BLINK_EN(pin)      (DEV_BUS_VIRT_BASE + 0x0108)
  22 #define GPIO_IN_POL(pin)        (DEV_BUS_VIRT_BASE + 0x010c)
  23 #define GPIO_DATA_IN(pin)       (DEV_BUS_VIRT_BASE + 0x0110)
  24 #define GPIO_EDGE_CAUSE(pin)    (DEV_BUS_VIRT_BASE + 0x0114)
  25 #define GPIO_MASK_OFF           (mv78xx0_core_index() ? 0x18 : 0)
  26 #define GPIO_EDGE_MASK(pin)     (DEV_BUS_VIRT_BASE + 0x0118 + GPIO_MASK_OFF)
  27 #define GPIO_LEVEL_MASK(pin)    (DEV_BUS_VIRT_BASE + 0x011c + GPIO_MASK_OFF)
  28
  29 static inline int gpio_to_irq(int pin)
  30 {
  31         return pin + IRQ_MV78XX0_GPIO_START;
  32 }
  33
  34 static inline int irq_to_gpio(int irq)
  35 {
  36         return irq - IRQ_MV78XX0_GPIO_START;
  37 }
  38
  39
  40 #endif