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 #ifdef CONFIG_CHAIN_OF_TRUST
11 #ifndef CONFIG_EXTRA_ENV
12 #define CONFIG_EXTRA_ENV ""
16 * Control should not reach back to uboot after validation of images
17 * for secure boot flow and therefore bootscript should have
18 * the bootm command. If control reaches back to uboot anyhow
19 * after validating images, core should just spin.
23 * Define the key hash for boot script here if public/private key pair used to
24 * sign bootscript are different from the SRK hash put in the fuse
25 * Example of defining KEY_HASH is
26 * #define CONFIG_BOOTSCRIPT_KEY_HASH \
27 * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
30 #ifdef CONFIG_USE_BOOTARGS
31 #define CONFIG_SET_BOOTARGS "setenv bootargs \'" CONFIG_BOOTARGS" \';"
33 #define CONFIG_SET_BOOTARGS "setenv bootargs \'root=/dev/ram " \
34 "rw console=ttyS0,115200 ramdisk_size=600000\';"
38 #ifdef CONFIG_BOOTSCRIPT_KEY_HASH
39 #define CONFIG_SECBOOT \
40 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
43 "esbc_validate $bs_hdraddr " \
44 __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
48 #define CONFIG_SECBOOT \
49 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
52 "esbc_validate $bs_hdraddr;" \
57 #ifdef CONFIG_BOOTSCRIPT_COPY_RAM
58 #define CONFIG_BS_COPY_ENV \
59 "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
60 "setenv bs_hdr_device " __stringify(CONFIG_BS_HDR_ADDR_DEVICE)";" \
61 "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
62 "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
63 "setenv bs_device " __stringify(CONFIG_BS_ADDR_DEVICE)";" \
64 "setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
66 /* For secure boot flow, default environment used will be used */
67 #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \
68 defined(CONFIG_SD_BOOT)
69 #if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT)
70 #define CONFIG_BS_COPY_CMD \
71 "nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
72 "nand read $bs_ram $bs_device $bs_size ;"
73 #elif defined(CONFIG_SD_BOOT)
74 #define CONFIG_BS_COPY_CMD \
75 "mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \
76 "mmc read $bs_ram $bs_device $bs_size ;"
79 #define CONFIG_BS_COPY_CMD \
80 "cp.b $bs_hdr_device $bs_hdr_ram $bs_hdr_size ;" \
81 "cp.b $bs_device $bs_ram $bs_size ;"
83 #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
85 #ifndef CONFIG_BS_COPY_ENV
86 #define CONFIG_BS_COPY_ENV
89 #ifndef CONFIG_BS_COPY_CMD
90 #define CONFIG_BS_COPY_CMD
93 #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \