blob: fb7ea3595454ad31be0e04216980acbf10392197 [file] [log] [blame]
Stefan Roesec440bfe2007-06-06 11:42:13 +02001/*
2 * (C) Copyright 2007
3 * Stefan Roese, DENX Software Engineering, sr@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
25#include <common.h>
26#include <command.h>
27#include <i2c.h>
28
29static u8 boot_267_nor[] = {
30 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00,
31 0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
32 0x00, 0x00, 0x00, 0x00
33};
34
35static u8 boot_267_nand[] = {
36 0xd0, 0x38, 0xc3, 0x50, 0x13, 0x88, 0x8e, 0x00,
37 0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
38 0x00, 0x00, 0x00, 0x00
39};
40
41static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
42{
43 u8 chip;
44 u8 *buf;
45 int cpu_freq;
46
47 if (argc < 3) {
48 printf("Usage:\n%s\n", cmdtp->usage);
49 return 1;
50 }
51
52 cpu_freq = simple_strtol(argv[1], NULL, 10);
53 if (cpu_freq != 267) {
54 printf("Unsupported cpu-frequency - only 267 supported\n");
55 return 1;
56 }
57
58 /* use 0x50 as I2C EEPROM address for now */
59 chip = 0x50;
60
61 if ((strcmp(argv[2], "nor") != 0) &&
62 (strcmp(argv[2], "nand") != 0)) {
63 printf("Unsupported boot-device - only nor|nand support\n");
64 return 1;
65 }
66
67 if (strcmp(argv[2], "nand") == 0) {
68 switch (cpu_freq) {
69 case 267:
70 buf = boot_267_nand;
71 break;
72 default:
73 break;
74 }
75 } else {
76 switch (cpu_freq) {
77 case 267:
78 buf = boot_267_nor;
79 break;
80 default:
81 break;
82 }
83 }
84
85 if (i2c_write(chip, 0, 1, buf, 16) != 0)
86 printf("Error writing to EEPROM at address 0x%x\n", chip);
87 udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
88 if (i2c_write(chip, 0x10, 1, buf+16, 4) != 0)
89 printf("Error2 writing to EEPROM at address 0x%x\n", chip);
90
91 printf("Done\n");
92 printf("Please power-cycle the board for the changes to take effect\n");
93
94 return 0;
95}
96
97U_BOOT_CMD(
98 bootstrap, 3, 0, do_bootstrap,
99 "bootstrap - program the I2C bootstrap EEPROM\n",
100 "<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM\n"
101 );