board/amcc/taishan/update.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 #include <config.h>
  25 #include <common.h>
  26 #include <command.h>
  27 #include <asm/processor.h>
  28 #include <i2c.h>
  29
  30 #if defined(CONFIG_TAISHAN)
  31
  32 const uchar bootstrap_buf[16] = {
  33         0x86,
  34         0x78,
  35         0xc1,
  36         0xa6,
  37         0x09,
  38         0x67,
  39         0x04,
  40         0x63,
  41         0x00,
  42         0x00,
  43         0x00,
  44         0x00,
  45         0x00,
  46         0x00,
  47         0x00,
  48         0x00
  49 };
  50
  51 static int update_boot_eeprom(void)
  52 {
  53         ulong len = 0x10;
  54         uchar chip = CONFIG_SYS_BOOTSTRAP_IIC_ADDR;
  55         uchar *pbuf = (uchar *)bootstrap_buf;
  56         int ii, jj;
  57
  58         for (ii = 0; ii < len; ii++) {
  59                 if (i2c_write(chip, ii, 1, &pbuf[ii], 1) != 0) {
  60                         printf("i2c_write failed\n");
  61                         return -1;
  62                 }
  63
  64                 /* wait 10ms */
  65                 for (jj = 0; jj < 10; jj++)
  66                         udelay(1000);
  67         }
  68         return 0;
  69 }
  70
  71 int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
  72 {
  73         return update_boot_eeprom();
  74 }
  75
  76 U_BOOT_CMD(update_boot_eeprom, 1, 1, do_update_boot_eeprom,
  77            "update_boot_eeprom  - update bootstrap eeprom content\n", NULL);
  78 #endif