| Stefan Roese | 23d8d34 | 2007-06-06 11:42:13 +0200 | [diff] [blame] | 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); |
| 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 | |
| 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 | ); |