gpio.h 1.2 KB

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  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. #ifndef __ASM_ARCH_SPEAR_GPIO_H
  23. #define __ASM_ARCH_SPEAR_GPIO_H
  24. enum gpio_direction {
  25. GPIO_DIRECTION_IN,
  26. GPIO_DIRECTION_OUT,
  27. };
  28. struct gpio_regs {
  29. u32 gpiodata[0x100]; /* 0x000 ... 0x3fc */
  30. u32 gpiodir; /* 0x400 */
  31. };
  32. #define SPEAR_GPIO_COUNT 8
  33. #define DATA_REG_ADDR(gpio) (1 << (gpio + 2))
  34. #endif /* __ASM_ARCH_SPEAR_GPIO_H */