qemu/roms/u-boot/board/amcc/acadia/cmd_acadia.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 <common.h>
   9 #include <command.h>
  10 #include <i2c.h>
  11
  12 static u8 boot_267_nor[] = {
  13         0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00,
  14         0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
  15         0x00, 0x00, 0x00, 0x00
  16 };
  17
  18 static u8 boot_267_nand[] = {
  19         0xd0, 0x38, 0xc3, 0x50, 0x13, 0x88, 0x8e, 0x00,
  20         0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
  21         0x00, 0x00, 0x00, 0x00
  22 };
  23
  24 static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  25 {
  26         u8 chip;
  27         u8 *buf;
  28         int cpu_freq;
  29
  30         if (argc < 3)
  31                 return cmd_usage(cmdtp);
  32
  33         cpu_freq = simple_strtol(argv[1], NULL, 10);
  34         if (cpu_freq != 267) {
  35                 printf("Unsupported cpu-frequency - only 267 supported\n");
  36                 return 1;
  37         }
  38
  39         /* use 0x50 as I2C EEPROM address for now */
  40         chip = 0x50;
  41
  42         if ((strcmp(argv[2], "nor") != 0) &&
  43             (strcmp(argv[2], "nand") != 0)) {
  44                 printf("Unsupported boot-device - only nor|nand support\n");
  45                 return 1;
  46         }
  47
  48         if (strcmp(argv[2], "nand") == 0) {
  49                 switch (cpu_freq) {
  50                 case 267:
  51                         buf = boot_267_nand;
  52                         break;
  53                 default:
  54                         break;
  55                 }
  56         } else {
  57                 switch (cpu_freq) {
  58                 case 267:
  59                         buf = boot_267_nor;
  60                         break;
  61                 default:
  62                         break;
  63                 }
  64         }
  65
  66         if (i2c_write(chip, 0, 1, buf, 16) != 0)
  67                 printf("Error writing to EEPROM at address 0x%x\n", chip);
  68         udelay(CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
  69         if (i2c_write(chip, 0x10, 1, buf+16, 4) != 0)
  70                 printf("Error2 writing to EEPROM at address 0x%x\n", chip);
  71
  72         printf("Done\n");
  73         printf("Please power-cycle the board for the changes to take effect\n");
  74
  75         return 0;
  76 }
  77
  78 U_BOOT_CMD(
  79         bootstrap,      3,      0,      do_bootstrap,
  80         "program the I2C bootstrap EEPROM",
  81         "<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM"
  82 );