| Stephen Warren | 45b8ae6 | 2012-08-05 16:07:21 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 Vikram Narayananan |
| 3 | * <vikram186@gmail.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | */ |
| 18 | |
| 19 | #ifndef _BCM2835_GPIO_H_ |
| 20 | #define _BCM2835_GPIO_H_ |
| 21 | |
| 22 | #define BCM2835_GPIO_BASE 0x20200000 |
| 23 | #define BCM2835_GPIO_COUNT 54 |
| 24 | |
| 25 | #define BCM2835_GPIO_FSEL_MASK 0x7 |
| 26 | #define BCM2835_GPIO_INPUT 0x0 |
| 27 | #define BCM2835_GPIO_OUTPUT 0x1 |
| 28 | #define BCM2835_GPIO_ALT0 0x4 |
| 29 | #define BCM2835_GPIO_ALT1 0x5 |
| 30 | #define BCM2835_GPIO_ALT2 0x6 |
| 31 | #define BCM2835_GPIO_ALT3 0x7 |
| 32 | #define BCM2835_GPIO_ALT4 0x3 |
| 33 | #define BCM2835_GPIO_ALT5 0x2 |
| 34 | |
| 35 | #define BCM2835_GPIO_COMMON_BANK(gpio) ((gpio < 32) ? 0 : 1) |
| 36 | #define BCM2835_GPIO_COMMON_SHIFT(gpio) (gpio & 0x1f) |
| 37 | |
| 38 | #define BCM2835_GPIO_FSEL_BANK(gpio) (gpio / 10) |
| 39 | #define BCM2835_GPIO_FSEL_SHIFT(gpio) ((gpio % 10) * 3) |
| 40 | |
| 41 | struct bcm2835_gpio_regs { |
| 42 | u32 gpfsel[6]; |
| 43 | u32 reserved1; |
| 44 | u32 gpset[2]; |
| 45 | u32 reserved2; |
| 46 | u32 gpclr[2]; |
| 47 | u32 reserved3; |
| 48 | u32 gplev[2]; |
| 49 | u32 reserved4; |
| 50 | u32 gpeds[2]; |
| 51 | u32 reserved5; |
| 52 | u32 gpren[2]; |
| 53 | u32 reserved6; |
| 54 | u32 gpfen[2]; |
| 55 | u32 reserved7; |
| 56 | u32 gphen[2]; |
| 57 | u32 reserved8; |
| 58 | u32 gplen[2]; |
| 59 | u32 reserved9; |
| 60 | u32 gparen[2]; |
| 61 | u32 reserved10; |
| 62 | u32 gppud; |
| 63 | u32 gppudclk[2]; |
| 64 | }; |
| 65 | |
| 66 | #endif /* _BCM2835_GPIO_H_ */ |