2 * Copyright 2015 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
7 #ifndef __CONFIG_FSL_CHAIN_TRUST_H
8 #define __CONFIG_FSL_CHAIN_TRUST_H
10 /* For secure boot, since ENVIRONMENT in flash/external memories is
11 * not verified, undef CONFIG_ENV_xxx and set default env
12 * (CONFIG_ENV_IS_NOWHERE)
14 #ifdef CONFIG_SECURE_BOOT
16 #undef CONFIG_ENV_IS_IN_EEPROM
17 #undef CONFIG_ENV_IS_IN_NAND
18 #undef CONFIG_ENV_IS_IN_MMC
19 #undef CONFIG_ENV_IS_IN_SPI_FLASH
20 #undef CONFIG_ENV_IS_IN_FLASH
22 #define CONFIG_ENV_IS_NOWHERE
26 #ifdef CONFIG_CHAIN_OF_TRUST
28 #ifndef CONFIG_EXTRA_ENV
29 #define CONFIG_EXTRA_ENV ""
33 * Control should not reach back to uboot after validation of images
34 * for secure boot flow and therefore bootscript should have
35 * the bootm command. If control reaches back to uboot anyhow
36 * after validating images, core should just spin.
40 * Define the key hash for boot script here if public/private key pair used to
41 * sign bootscript are different from the SRK hash put in the fuse
42 * Example of defining KEY_HASH is
43 * #define CONFIG_BOOTSCRIPT_KEY_HASH \
44 * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
47 #ifdef CONFIG_BOOTARGS
48 #define CONFIG_SET_BOOTARGS "setenv bootargs \'" CONFIG_BOOTARGS" \';"
50 #define CONFIG_SET_BOOTARGS "setenv bootargs \'root=/dev/ram " \
51 "rw console=ttyS0,115200 ramdisk_size=600000\';"
55 #ifdef CONFIG_BOOTSCRIPT_KEY_HASH
56 #define CONFIG_SECBOOT \
57 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
60 "esbc_validate $bs_hdraddr " \
61 __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
65 #define CONFIG_SECBOOT \
66 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
69 "esbc_validate $bs_hdraddr;" \
74 #ifdef CONFIG_BOOTSCRIPT_COPY_RAM
75 #define CONFIG_BS_COPY_ENV \
76 "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
77 "setenv bs_hdr_flash " __stringify(CONFIG_BS_HDR_ADDR_FLASH)";" \
78 "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
79 "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
80 "setenv bs_flash " __stringify(CONFIG_BS_ADDR_FLASH)";" \
81 "setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
83 /* For secure boot flow, default environment used will be used */
84 #if defined(CONFIG_SYS_RAMBOOT)
85 #if defined(CONFIG_RAMBOOT_NAND)
86 #define CONFIG_BS_COPY_CMD \
87 "nand read $bs_hdr_ram $bs_hdr_flash $bs_hdr_size ;" \
88 "nand read $bs_ram $bs_flash $bs_size ;"
89 #endif /* CONFIG_RAMBOOT_NAND */
91 #define CONFIG_BS_COPY_CMD \
92 "cp.b $bs_hdr_flash $bs_hdr_ram $bs_hdr_size ;" \
93 "cp.b $bs_flash $bs_ram $bs_size ;"
95 #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
97 #ifndef CONFIG_BS_COPY_ENV
98 #define CONFIG_BS_COPY_ENV
101 #ifndef CONFIG_BS_COPY_CMD
102 #define CONFIG_BS_COPY_CMD
105 #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \