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_SPI_FLASH
21 #ifdef CONFIG_CHAIN_OF_TRUST
23 #ifndef CONFIG_EXTRA_ENV
24 #define CONFIG_EXTRA_ENV ""
28 * Control should not reach back to uboot after validation of images
29 * for secure boot flow and therefore bootscript should have
30 * the bootm command. If control reaches back to uboot anyhow
31 * after validating images, core should just spin.
35 * Define the key hash for boot script here if public/private key pair used to
36 * sign bootscript are different from the SRK hash put in the fuse
37 * Example of defining KEY_HASH is
38 * #define CONFIG_BOOTSCRIPT_KEY_HASH \
39 * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
42 #ifdef CONFIG_BOOTARGS
43 #define CONFIG_SET_BOOTARGS "setenv bootargs \'" CONFIG_BOOTARGS" \';"
45 #define CONFIG_SET_BOOTARGS "setenv bootargs \'root=/dev/ram " \
46 "rw console=ttyS0,115200 ramdisk_size=600000\';"
50 #ifdef CONFIG_BOOTSCRIPT_KEY_HASH
51 #define CONFIG_SECBOOT \
52 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
55 "esbc_validate $bs_hdraddr " \
56 __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
60 #define CONFIG_SECBOOT \
61 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
64 "esbc_validate $bs_hdraddr;" \
69 #ifdef CONFIG_BOOTSCRIPT_COPY_RAM
70 #define CONFIG_BS_COPY_ENV \
71 "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
72 "setenv bs_hdr_device " __stringify(CONFIG_BS_HDR_ADDR_DEVICE)";" \
73 "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
74 "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
75 "setenv bs_device " __stringify(CONFIG_BS_ADDR_DEVICE)";" \
76 "setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
78 /* For secure boot flow, default environment used will be used */
79 #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \
80 defined(CONFIG_SD_BOOT)
81 #if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT)
82 #define CONFIG_BS_COPY_CMD \
83 "nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
84 "nand read $bs_ram $bs_device $bs_size ;"
85 #elif defined(CONFIG_SD_BOOT)
86 #define CONFIG_BS_COPY_CMD \
87 "mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
88 "mmc read $bs_ram $bs_device $bs_size ;"
91 #define CONFIG_BS_COPY_CMD \
92 "cp.b $bs_hdr_device $bs_hdr_ram $bs_hdr_size ;" \
93 "cp.b $bs_device $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 \