LXR uboot/board/freescale/common/cmd_esbc

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2015 Freescale Semiconductor, Inc.
   4 */
   5
   6#include <common.h>
   7#include <command.h>
   8#include <env.h>
   9#include <fsl_validate.h>
  10
  11int do_esbc_halt(struct cmd_tbl *cmdtp, int flag, int argc,
  12                 char *const argv[])
  13{
  14        if (fsl_check_boot_mode_secure() == 0) {
  15                printf("Boot Mode is Non-Secure. Not entering spin loop.\n");
  16                return 0;
  17        }
  18
  19        printf("Core is entering spin loop.\n");
  20loop:
  21        goto loop;
  22
  23        return 0;
  24}
  25
  26#ifndef CONFIG_SPL_BUILD
  27static int do_esbc_validate(struct cmd_tbl *cmdtp, int flag, int argc,
  28                            char *const argv[])
  29{
  30        char *hash_str = NULL;
  31        uintptr_t haddr;
  32        int ret;
  33        uintptr_t img_addr = 0;
  34        char buf[20];
  35
  36        if (argc < 2)
  37                return cmd_usage(cmdtp);
  38        else if (argc > 2)
  39                /* Second arg - Optional - Hash Str*/
  40                hash_str = argv[2];
  41
  42        /* First argument - header address -32/64bit */
  43        haddr = (uintptr_t)hextoul(argv[1], NULL);
  44
  45        /* With esbc_validate command, Image address must be
  46         * part of header. So, the function is called
  47         * by passing this argument as 0.
  48         */
  49        ret = fsl_secboot_validate(haddr, hash_str, &img_addr);
  50
  51        /* Need to set "img_addr" even if validation failure.
  52         * Required when SB_EN in RCW set and non-fatal error
  53         * to continue U-Boot
  54         */
  55        sprintf(buf, "%lx", img_addr);
  56        env_set("img_addr", buf);
  57
  58        if (ret)
  59                return 1;
  60
  61        printf("esbc_validate command successful\n");
  62        return 0;
  63}
  64
  65/***************************************************/
  66static char esbc_validate_help_text[] =
  67        "esbc_validate hdr_addr <hash_val> - Validates signature using\n"
  68        "                          RSA verification\n"
  69        "                          $hdr_addr Address of header of the image\n"
  70        "                          to be validated.\n"
  71        "                          $hash_val -Optional\n"
  72        "                          It provides Hash of public/srk key to be\n"
  73        "                          used to verify signature.\n";
  74
  75U_BOOT_CMD(
  76        esbc_validate,  3,      0,      do_esbc_validate,
  77        "Validates signature on a given image using RSA verification",
  78        esbc_validate_help_text
  79);
  80
  81U_BOOT_CMD(
  82        esbc_halt,      1,      0,      do_esbc_halt,
  83        "Put the core in spin loop (Secure Boot Only)",
  84        ""
  85);
  86#endif
  87