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