LXR uboot/board/amcc/acadia/cmd

   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
  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                cmd_usage(cmdtp);
  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(CONFIG_SYS_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        "program the I2C bootstrap EEPROM",
 100        "<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM"
 101);
 102