1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright 2015 Freescale Semiconductor, Inc.
6 #ifndef __CONFIG_FSL_CHAIN_TRUST_H
7 #define __CONFIG_FSL_CHAIN_TRUST_H
9 #include <linux/stringify.h>
11 #ifdef CONFIG_CHAIN_OF_TRUST
13 #ifndef CONFIG_EXTRA_ENV
14 #define CONFIG_EXTRA_ENV ""
18 * Control should not reach back to uboot after validation of images
19 * for secure boot flow and therefore bootscript should have
20 * the bootm command. If control reaches back to uboot anyhow
21 * after validating images, core should just spin.
25 * Define the key hash for boot script here if public/private key pair used to
26 * sign bootscript are different from the SRK hash put in the fuse
27 * Example of defining KEY_HASH is
28 * #define CONFIG_BOOTSCRIPT_KEY_HASH \
29 * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
32 #ifdef CONFIG_USE_BOOTARGS
33 #define CONFIG_SET_BOOTARGS "setenv bootargs \'" CONFIG_BOOTARGS" \';"
35 #define CONFIG_SET_BOOTARGS "setenv bootargs \'root=/dev/ram " \
36 "rw console=ttyS0,115200 ramdisk_size=600000\';"
40 #ifdef CONFIG_BOOTSCRIPT_KEY_HASH
41 #define CONFIG_SECBOOT \
42 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
45 "esbc_validate $bs_hdraddr " \
46 __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
50 #define CONFIG_SECBOOT \
51 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
54 "esbc_validate $bs_hdraddr;" \
59 #ifdef CONFIG_BOOTSCRIPT_COPY_RAM
60 #define CONFIG_BS_COPY_ENV \
61 "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
62 "setenv bs_hdr_device " __stringify(CONFIG_BS_HDR_ADDR_DEVICE)";" \
63 "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
64 "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
65 "setenv bs_device " __stringify(CONFIG_BS_ADDR_DEVICE)";" \
66 "setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
68 /* For secure boot flow, default environment used will be used */
69 #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \
70 defined(CONFIG_SD_BOOT)
71 #if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT)
72 #define CONFIG_BS_COPY_CMD \
73 "nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
74 "nand read $bs_ram $bs_device $bs_size ;"
75 #elif defined(CONFIG_SD_BOOT)
76 #define CONFIG_BS_COPY_CMD \
77 "mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
78 "mmc read $bs_ram $bs_device $bs_size ;"
81 #define CONFIG_BS_COPY_CMD \
82 "cp.b $bs_hdr_device $bs_hdr_ram $bs_hdr_size ;" \
83 "cp.b $bs_device $bs_ram $bs_size ;"
85 #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
87 #ifndef CONFIG_BS_COPY_ENV
88 #define CONFIG_BS_COPY_ENV
91 #ifndef CONFIG_BS_COPY_CMD
92 #define CONFIG_BS_COPY_CMD
95 #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \