board/amcc/sequoia/cmd_sequoia.c

   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_533_nor[] = {
  30         0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xa0, 0x30,
  31         0x40, 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00
  32 };
  33
  34 static u8 boot_533_nand[] = {
  35         0x87, 0x78, 0x82, 0x52, 0x09, 0x57, 0xd0, 0x10,
  36         0xa0, 0x68, 0x23, 0x58, 0x0d, 0x05, 0x00, 0x00
  37 };
  38
  39 static u8 boot_667_nor[] = {
  40         0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xa0, 0x30,
  41         0x40, 0x08, 0x23, 0x50, 0x0d, 0x05, 0x00, 0x00
  42 };
  43
  44 static u8 boot_667_nand[] = {
  45         0x87, 0x78, 0xa2, 0x52, 0x09, 0xd7, 0xd0, 0x10,
  46         0xa0, 0x68, 0x23, 0x58, 0x0d, 0x05, 0x00, 0x00
  47 };
  48
  49 static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
  50 {
  51         u8 chip;
  52         u8 *buf;
  53         int cpu_freq;
  54
  55         if (argc < 3) {
  56                 printf("Usage:\n%s\n", cmdtp->usage);
  57                 return 1;
  58         }
  59
  60         cpu_freq = simple_strtol(argv[1], NULL, 10);
  61         if (!((cpu_freq == 533) || (cpu_freq == 667))) {
  62                 printf("Unsupported cpu-frequency - only 533 and 667 supported\n");
  63                 return 1;
  64         }
  65
  66         /* use 0x52 as I2C EEPROM address for now */
  67         chip = 0x52;
  68
  69         if ((strcmp(argv[2], "nor") != 0) &&
  70             (strcmp(argv[2], "nand") != 0)) {
  71                 printf("Unsupported boot-device - only nor|nand support\n");
  72                 return 1;
  73         }
  74
  75         if (strcmp(argv[2], "nand") == 0) {
  76                 switch (cpu_freq) {
  77                 default:
  78                 case 533:
  79                         buf = boot_533_nand;
  80                         break;
  81                 case 667:
  82                         buf = boot_667_nand;
  83                         break;
  84                 }
  85         } else {
  86                 switch (cpu_freq) {
  87                 default:
  88                 case 533:
  89                         buf = boot_533_nor;
  90                         break;
  91                 case 667:
  92                         buf = boot_667_nor;
  93                         break;
  94                 }
  95         }
  96
  97         if (i2c_write(chip, 0, 1, buf, 16) != 0)
  98                 printf("Error writing to EEPROM at address 0x%x\n", chip);
  99         udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
 100
 101         printf("Done\n");
 102         printf("Please power-cycle the board for the changes to take effect\n");
 103
 104         return 0;
 105 }
 106
 107 U_BOOT_CMD(
 108         bootstrap,      3,      0,      do_bootstrap,
 109         "bootstrap - program the I2C bootstrap EEPROM\n",
 110         "<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM\n"
 111         );