| wdenk | 07c0487 | 2002-09-24 11:14:13 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2002 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 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 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | |
| 26 | #ifdef CONFIG_POST |
| 27 | |
| 28 | /* |
| 29 | * I2C test |
| 30 | * |
| 31 | * For verifying the I2C bus, a full I2C bus scanning is performed. |
| 32 | * If any I2C device is found, the test is considered as passed, |
| 33 | * otherwise failed. |
| 34 | */ |
| 35 | |
| 36 | #include <post.h> |
| 37 | #include <i2c.h> |
| 38 | |
| 39 | #if CONFIG_POST & CFG_POST_I2C |
| 40 | |
| 41 | int i2c_post_test (int flags) |
| 42 | { |
| 43 | unsigned int i; |
| 44 | unsigned int chips = 0; |
| 45 | |
| 46 | for (i = 0; i < 128; i++) { |
| 47 | if (i2c_probe (i) == 0) |
| 48 | chips++; |
| 49 | } |
| 50 | |
| 51 | return chips > 0 ? 0 : -1; |
| 52 | } |
| 53 | |
| 54 | #endif /* CONFIG_POST & CFG_POST_I2C */ |
| 55 | #endif /* CONFIG_POST */ |