| Ajay Bhargav | 9dfd7ed | 2011-08-22 17:57:38 +0530 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2011 |
| 3 | * eInfochips Ltd. <www.einfochips.com> |
| 4 | * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com> |
| 5 | * |
| 6 | * (C) Copyright 2010 |
| 7 | * Marvell Semiconductor <www.marvell.com> |
| 8 | * |
| 9 | * See file CREDITS for list of people who contributed to this |
| 10 | * project. |
| 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License as |
| 14 | * published by the Free Software Foundation; either version 2 of |
| 15 | * the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This program is distributed in the hope that it will be useful, |
| 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | * GNU General Public License for more details. |
| 21 | * |
| 22 | * You should have received a copy of the GNU General Public License |
| 23 | * along with this program; if not, write to the Free Software |
| 24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
| 25 | * MA 02110-1301 USA |
| 26 | */ |
| 27 | |
| 28 | #ifndef _ASM_ARCH_GPIO_H |
| 29 | #define _ASM_ARCH_GPIO_H |
| 30 | |
| 31 | #include <asm/types.h> |
| 32 | #include <asm/arch/armada100.h> |
| 33 | |
| 34 | #define GPIO_HIGH 1 |
| 35 | #define GPIO_LOW 0 |
| 36 | |
| 37 | #define GPIO_TO_REG(gp) (gp >> 5) |
| 38 | #define GPIO_TO_BIT(gp) (1 << (gp & 0x1F)) |
| 39 | #define GPIO_VAL(gp, val) ((val >> (gp & 0x1F)) & 0x01) |
| 40 | |
| 41 | static inline void *get_gpio_base(int bank) |
| 42 | { |
| 43 | const unsigned int offset[4] = {0, 4, 8, 0x100}; |
| 44 | /* gpio register bank offset - refer Appendix A.36 */ |
| 45 | return (struct gpio_reg *)(ARMD1_GPIO_BASE + offset[bank]); |
| 46 | } |
| 47 | |
| 48 | #endif /* _ASM_ARCH_GPIO_H */ |