board/freescale/common/cmd_esbc_validate.c

   1 /*
   2  * Copyright 2015 Freescale Semiconductor, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <command.h>
   9 #include <fsl_validate.h>
  10
  11 static int do_esbc_halt(cmd_tbl_t *cmdtp, int flag, int argc,
  12                                 char * const argv[])
  13 {
  14         printf("Core is entering spin loop.\n");
  15 loop:
  16         goto loop;
  17
  18         return 0;
  19 }
  20
  21 static int do_esbc_validate(cmd_tbl_t *cmdtp, int flag, int argc,
  22                                 char * const argv[])
  23 {
  24         char *hash_str = NULL;
  25         uintptr_t haddr;
  26         int ret;
  27
  28         if (argc < 2)
  29                 return cmd_usage(cmdtp);
  30         else if (argc > 2)
  31                 /* Second arg - Optional - Hash Str*/
  32                 hash_str = argv[2];
  33
  34         /* First argument - header address -32/64bit */
  35         haddr = (uintptr_t)simple_strtoul(argv[1], NULL, 16);
  36
  37         /* With esbc_validate command, Image address must be
  38          * part of header. So, the function is called
  39          * by passing this argument as 0.
  40          */
  41         ret = fsl_secboot_validate(haddr, hash_str, 0);
  42         if (ret)
  43                 return 1;
  44
  45         printf("esbc_validate command successful\n");
  46         return 0;
  47 }
  48
  49 /***************************************************/
  50 static char esbc_validate_help_text[] =
  51         "esbc_validate hdr_addr <hash_val> - Validates signature using\n"
  52         "                          RSA verification\n"
  53         "                          $hdr_addr Address of header of the image\n"
  54         "                          to be validated.\n"
  55         "                          $hash_val -Optional\n"
  56         "                          It provides Hash of public/srk key to be\n"
  57         "                          used to verify signature.\n";
  58
  59 U_BOOT_CMD(
  60         esbc_validate,  3,      0,      do_esbc_validate,
  61         "Validates signature on a given image using RSA verification",
  62         esbc_validate_help_text
  63 );
  64
  65 U_BOOT_CMD(
  66         esbc_halt,      1,      0,      do_esbc_halt,
  67         "Put the core in spin loop ",
  68         ""
  69 );