projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 65b20dce YT |
1 | /* |
| 2 | * (C) Copyright 2008 Dmitry Rakhchev, EmCraft Systems, rda@emcraft.com | |
| 3 | * | |
| 4 | * Developed for DENX Software Engineering GmbH | |
| 5 | * | |
| 6 | * See file CREDITS for list of people who contributed to this | |
| 7 | * project. | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or | |
| 10 | * modify it under the terms of the GNU General Public License as | |
| 11 | * published by the Free Software Foundation; either version 2 of | |
| 12 | * the License, or (at your option) any later version. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, | |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | * GNU General Public License for more details. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License | |
| 20 | * along with this program; if not, write to the Free Software | |
| 21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 22 | * MA 02111-1307 USA | |
| 23 | */ | |
| 24 | ||
| 25 | #include <common.h> | |
| 26 | ||
| 65b20dce YT |
27 | /* There are two tests for dsPIC currently implemented: |
| 28 | * 1. dsPIC ready test. Done in board_early_init_f(). Only result verified here. | |
| 29 | * 2. dsPIC POST result test. This test gets dsPIC POST codes and version. | |
| 30 | */ | |
| 31 | ||
| 32 | #include <post.h> | |
| 33 | ||
| 34 | #include <i2c.h> | |
| 35 | #include <asm/io.h> | |
| 36 | ||
| 37 | DECLARE_GLOBAL_DATA_PTR; | |
| 38 | ||
| 39 | #define DSPIC_POST_ERROR_REG 0x800 | |
| 40 | #define DSPIC_SYS_ERROR_REG 0x802 | |
| 41 | #define DSPIC_VERSION_REG 0x804 | |
| 42 | ||
| 43 | #if CONFIG_POST & CFG_POST_BSPEC1 | |
| 44 | ||
| 45 | /* Verify that dsPIC ready test done early at hw init passed ok */ | |
| 46 | int dspic_init_post_test(int flags) | |
| 47 | { | |
| 48 | if (in_be32((void *)CFG_DSPIC_TEST_ADDR) & CFG_DSPIC_TEST_MASK) { | |
| 49 | post_log("dsPIC init test failed\n"); | |
| 50 | return 1; | |
| 51 | } | |
| 52 | ||
| 53 | return 0; | |
| 54 | } | |
| 55 | ||
| 56 | #endif /* CONFIG_POST & CFG_POST_BSPEC1 */ | |
| 57 | ||
| 58 | #if CONFIG_POST & CFG_POST_BSPEC2 | |
| 59 | /* Read a register from the dsPIC. */ | |
| 60 | int dspic_read(ushort reg) | |
| 61 | { | |
| 62 | uchar buf[2]; | |
| 63 | ||
| 64 | if (i2c_read(CFG_I2C_DSPIC_IO_ADDR, reg, 2, buf, 2)) | |
| 65 | return -1; | |
| 66 | ||
| 67 | return (uint)((buf[0] << 8) | buf[1]); | |
| 68 | } | |
| 69 | ||
| 70 | /* Verify error codes regs, display version */ | |
| 71 | int dspic_post_test(int flags) | |
| 72 | { | |
| 73 | int data; | |
| 74 | int ret = 0; | |
| 75 | ||
| 76 | post_log("\n"); | |
| 77 | data = dspic_read(DSPIC_VERSION_REG); | |
| 78 | if (data == -1) { | |
| 79 | post_log("dsPIC : failed read version\n"); | |
| 80 | ret = 1; | |
| 81 | } else { | |
| 82 | post_log("dsPIC version: %u.%u\n", | |
| 83 | (data >> 8) & 0xFF, data & 0xFF); | |
| 84 | } | |
| 85 | ||
| 86 | data = dspic_read(DSPIC_POST_ERROR_REG); | |
| 87 | if (data != 0) ret = 1; | |
| 88 | if (data == -1) { | |
| 89 | post_log("dsPIC : failed read POST code\n"); | |
| 90 | } else { | |
| 91 | post_log("dsPIC POST code 0x%04X\n", data); | |
| 92 | } | |
| 93 | ||
| 94 | data = dspic_read(DSPIC_SYS_ERROR_REG); | |
| 65b20dce YT |
95 | if (data == -1) { |
| 96 | post_log("dsPIC : failed read system error\n"); | |
| 603f194e | 97 | ret = 1; |
| 65b20dce YT |
98 | } else { |
| 99 | post_log("dsPIC SYS-ERROR code: 0x%04X\n", data); | |
| 100 | } | |
| 101 | ||
| 102 | return ret; | |
| 103 | } | |
| 104 | ||
| 105 | #endif /* CONFIG_POST & CFG_POST_BSPEC2 */ |