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c440bfe6 SR |
1 | /* |
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 | ||
29 | static 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 | ||
35 | static 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 | ||
41 | static 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); | |
6d0f6bcf | 87 | udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000); |
c440bfe6 SR |
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 | ||
97 | U_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 | ); |