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/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <fsl_validate.h>
int do_esbc_halt(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
if (fsl_check_boot_mode_secure() == 0) {
printf("Boot Mode is Non-Secure. Not entering spin loop.\n");
return 0;
}
printf("Core is entering spin loop.\n");
loop:
goto loop;
return 0;
}
static int do_esbc_validate(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
char *hash_str = NULL;
uintptr_t haddr;
int ret;
uintptr_t img_addr = 0;
char buf[20];
if (argc < 2)
return cmd_usage(cmdtp);
else if (argc > 2)
/* Second arg - Optional - Hash Str*/
hash_str = argv[2];
/* First argument - header address -32/64bit */
haddr = (uintptr_t)simple_strtoul(argv[1], NULL, 16);
/* With esbc_validate command, Image address must be
* part of header. So, the function is called
* by passing this argument as 0.
*/
ret = fsl_secboot_validate(haddr, hash_str, &img_addr);
/* Need to set "img_addr" even if validation failure.
* Required when SB_EN in RCW set and non-fatal error
* to continue U-Boot
*/
sprintf(buf, "%lx", img_addr);
setenv("img_addr", buf);
if (ret)
return 1;
printf("esbc_validate command successful\n");
return 0;
}
/***************************************************/
static char esbc_validate_help_text[] =
"esbc_validate hdr_addr <hash_val> - Validates signature using\n"
" RSA verification\n"
" $hdr_addr Address of header of the image\n"
" to be validated.\n"
" $hash_val -Optional\n"
" It provides Hash of public/srk key to be\n"
" used to verify signature.\n";
U_BOOT_CMD(
esbc_validate, 3, 0, do_esbc_validate,
"Validates signature on a given image using RSA verification",
esbc_validate_help_text
);
U_BOOT_CMD(
esbc_halt, 1, 0, do_esbc_halt,
"Put the core in spin loop (Secure Boot Only)",
""
);
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