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03f5c550 WD |
1 | /* |
2 | * Copyright 2004 Freescale Semiconductor. | |
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 | ||
23 | ||
24 | #include <common.h> | |
25 | #include <i2c.h> | |
26 | ||
27 | #include "eeprom.h" | |
28 | ||
29 | ||
30 | typedef struct { | |
31 | char idee_pcbid[4]; /* "CCID" for CDC v1.X */ | |
32 | u8 idee_major; | |
33 | u8 idee_minor; | |
34 | char idee_serial[10]; | |
35 | char idee_errata[2]; | |
36 | char idee_date[8]; /* yyyymmdd */ | |
37 | /* The rest of the EEPROM space is reserved */ | |
38 | } id_eeprom_t; | |
39 | ||
40 | ||
41 | unsigned int | |
42 | get_cpu_board_revision(void) | |
43 | { | |
44 | uint major = 0; | |
45 | uint minor = 0; | |
46 | ||
47 | id_eeprom_t id_eeprom; | |
48 | ||
49 | i2c_read(CFG_I2C_EEPROM_ADDR, 0, 2, | |
50 | (uchar *) &id_eeprom, sizeof(id_eeprom)); | |
51 | ||
52 | major = id_eeprom.idee_major; | |
53 | minor = id_eeprom.idee_minor; | |
54 | ||
55 | if (major == 0xff && minor == 0xff) { | |
56 | major = minor = 0; | |
57 | } | |
58 | ||
59 | return MPC85XX_CPU_BOARD_REV(major,minor); | |
60 | } |