arch/arm/include/asm/arch-spear/gpio.h

   1 /*
   2  * Copyright (C) 2012 Stefan Roese <sr@denx.de>
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23
  24 #ifndef __ASM_ARCH_SPEAR_GPIO_H
  25 #define __ASM_ARCH_SPEAR_GPIO_H
  26
  27 enum gpio_direction {
  28         GPIO_DIRECTION_IN,
  29         GPIO_DIRECTION_OUT,
  30 };
  31
  32 struct gpio_regs {
  33         u32 gpiodata[0x100];    /* 0x000 ... 0x3fc */
  34         u32 gpiodir;            /* 0x400 */
  35 };
  36
  37 #define SPEAR_GPIO_COUNT                8
  38 #define DATA_REG_ADDR(gpio)             (1 << (gpio + 2))
  39
  40 #endif  /* __ASM_ARCH_SPEAR_GPIO_H */