2 * (C) Copyright 2008-2009
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
6 * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/ppc4xx_config.h>
34 static void print_configs(int cur_config_nr)
38 for (i = 0; i < ppc4xx_config_count; i++) {
39 printf("%-16s - %s", ppc4xx_config_val[i].label,
40 ppc4xx_config_val[i].description);
41 if (i == cur_config_nr)
48 static int do_chip_config(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
52 int cur_config_nr = -1;
53 u8 cur_config[CONFIG_4xx_CONFIG_BLOCKSIZE];
56 * First switch to correct I2C bus. This is I2C bus 0
57 * for all currently available 4xx derivats.
61 #ifdef CONFIG_CMD_EEPROM
62 ret = eeprom_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
63 CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
64 cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE);
66 ret = i2c_read(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
67 CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
68 1, cur_config, CONFIG_4xx_CONFIG_BLOCKSIZE);
71 printf("Error reading EEPROM at addr 0x%x\n",
72 CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
77 * Search the current configuration
79 for (i = 0; i < ppc4xx_config_count; i++) {
80 if (memcmp(cur_config, ppc4xx_config_val[i].val,
81 CONFIG_4xx_CONFIG_BLOCKSIZE) == 0)
85 if (cur_config_nr == -1) {
86 printf("Warning: The I2C bootstrap values don't match any"
87 " of the available options!\n");
88 printf("I2C bootstrap EEPROM values are (I2C address 0x%02x):\n",
89 CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
90 for (i = 0; i < CONFIG_4xx_CONFIG_BLOCKSIZE; i++) {
91 printf("%02x ", cur_config[i]);
97 printf("Available configurations (I2C address 0x%02x):\n",
98 CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
99 print_configs(cur_config_nr);
103 for (i = 0; i < ppc4xx_config_count; i++) {
105 * Search for configuration name/label
107 if (strcmp(argv[1], ppc4xx_config_val[i].label) == 0) {
108 printf("Using configuration:\n%-16s - %s\n",
109 ppc4xx_config_val[i].label,
110 ppc4xx_config_val[i].description);
112 #ifdef CONFIG_CMD_EEPROM
113 ret = eeprom_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
114 CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
115 ppc4xx_config_val[i].val,
116 CONFIG_4xx_CONFIG_BLOCKSIZE);
118 ret = i2c_write(CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
119 CONFIG_4xx_CONFIG_I2C_EEPROM_OFFSET,
120 1, ppc4xx_config_val[i].val,
121 CONFIG_4xx_CONFIG_BLOCKSIZE);
123 udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
125 printf("Error updating EEPROM at addr 0x%x\n",
126 CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR);
130 printf("done (dump via 'i2c md %x 0.1 %x')\n",
131 CONFIG_4xx_CONFIG_I2C_EEPROM_ADDR,
132 CONFIG_4xx_CONFIG_BLOCKSIZE);
133 printf("Reset the board for the changes to"
139 printf("Configuration %s not found!\n", argv[1]);
140 print_configs(cur_config_nr);
145 chip_config, 2, 0, do_chip_config,
146 "program the I2C bootstrap EEPROM",