board/amcc/taishan/update.c

   1 /*
   2  * (C) Copyright 2007
   3  * Stefan Roese, DENX Software Engineering, sr@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <config.h>
   9 #include <common.h>
  10 #include <command.h>
  11 #include <asm/processor.h>
  12 #include <i2c.h>
  13
  14 #if defined(CONFIG_TAISHAN)
  15
  16 const uchar bootstrap_buf[16] = {
  17         0x86,
  18         0x78,
  19         0xc1,
  20         0xa6,
  21         0x09,
  22         0x67,
  23         0x04,
  24         0x63,
  25         0x00,
  26         0x00,
  27         0x00,
  28         0x00,
  29         0x00,
  30         0x00,
  31         0x00,
  32         0x00
  33 };
  34
  35 static int update_boot_eeprom(void)
  36 {
  37         ulong len = 0x10;
  38         uchar chip = CONFIG_SYS_BOOTSTRAP_IIC_ADDR;
  39         uchar *pbuf = (uchar *)bootstrap_buf;
  40         int ii, jj;
  41
  42         for (ii = 0; ii < len; ii++) {
  43                 if (i2c_write(chip, ii, 1, &pbuf[ii], 1) != 0) {
  44                         printf("i2c_write failed\n");
  45                         return -1;
  46                 }
  47
  48                 /* wait 10ms */
  49                 for (jj = 0; jj < 10; jj++)
  50                         udelay(1000);
  51         }
  52         return 0;
  53 }
  54
  55 int do_update_boot_eeprom(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
  56 {
  57         return update_boot_eeprom();
  58 }
  59
  60 U_BOOT_CMD(update_boot_eeprom, 1, 1, do_update_boot_eeprom,
  61            "update bootstrap eeprom content", "");
  62 #endif