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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 3f701cc50a2e329e8437330bdd7316b48bd06cb8 / . / include / config_fsl_chain_trust.h
blob: aa222bbde20031eae33714253ce928250040a3de [file] [log] [blame]
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]1/*
2 * Copyright 2015 Freescale Semiconductor, Inc.
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
Aneesh Bansalbdc22072016-01-22 16:37:24 +0530[diff] [blame]7#ifndef __CONFIG_FSL_CHAIN_TRUST_H
8#define __CONFIG_FSL_CHAIN_TRUST_H
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]9
Aneesh Bansalbdc22072016-01-22 16:37:24 +0530[diff] [blame]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)
13 */
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]14#ifdef CONFIG_SECURE_BOOT
15
Aneesh Bansalbdc22072016-01-22 16:37:24 +0530[diff] [blame]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
21
22#define CONFIG_ENV_IS_NOWHERE
23
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]24#endif
25
Aneesh Bansalbdc22072016-01-22 16:37:24 +0530[diff] [blame]26#ifdef CONFIG_CHAIN_OF_TRUST
27
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]28#ifndef CONFIG_EXTRA_ENV
29#define CONFIG_EXTRA_ENV ""
30#endif
31
32/*
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.
37 */
38
39/*
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"
45 */
46
47#ifdef CONFIG_BOOTSCRIPT_KEY_HASH
48#define CONFIG_SECBOOT \
49 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
50 "setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \
51 "ramdisk_size=600000\';" \
52 CONFIG_EXTRA_ENV \
53 "esbc_validate $bs_hdraddr " \
54 __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
55 "source $img_addr;" \
56 "esbc_halt\0"
57#else
58#define CONFIG_SECBOOT \
59 "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
60 "setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \
61 "ramdisk_size=600000\';" \
62 CONFIG_EXTRA_ENV \
63 "esbc_validate $bs_hdraddr;" \
64 "source $img_addr;" \
65 "esbc_halt\0"
66#endif
67
Aneesh Bansal5050f6f2015-06-16 10:36:43 +0530[diff] [blame]68#ifdef CONFIG_BOOTSCRIPT_COPY_RAM
69#define CONFIG_BS_COPY_ENV \
70 "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
71 "setenv bs_hdr_flash " __stringify(CONFIG_BS_HDR_ADDR_FLASH)";" \
72 "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
73 "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
74 "setenv bs_flash " __stringify(CONFIG_BS_ADDR_FLASH)";" \
75 "setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
76
Saksham Jain3f701cc2016-03-23 16:24:37 +0530[diff] [blame^]77/* For secure boot flow, default environment used will be used */
78#if defined(CONFIG_SYS_RAMBOOT)
Aneesh Bansal5050f6f2015-06-16 10:36:43 +0530[diff] [blame]79#if defined(CONFIG_RAMBOOT_NAND)
80#define CONFIG_BS_COPY_CMD \
81 "nand read $bs_hdr_ram $bs_hdr_flash $bs_hdr_size ;" \
82 "nand read $bs_ram $bs_flash $bs_size ;"
83#endif /* CONFIG_RAMBOOT_NAND */
Saksham Jain3f701cc2016-03-23 16:24:37 +0530[diff] [blame^]84#else
85#define CONFIG_BS_COPY_CMD \
86 "cp.b $bs_hdr_flash $bs_hdr_ram $bs_hdr_size ;" \
87 "cp.b $bs_flash $bs_ram $bs_size ;"
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]88#endif
Saksham Jain3f701cc2016-03-23 16:24:37 +0530[diff] [blame^]89#endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]90
Aneesh Bansal5050f6f2015-06-16 10:36:43 +0530[diff] [blame]91#ifndef CONFIG_BS_COPY_ENV
92#define CONFIG_BS_COPY_ENV
93#endif
94
95#ifndef CONFIG_BS_COPY_CMD
96#define CONFIG_BS_COPY_CMD
97#endif
98
Aneesh Bansalbdc22072016-01-22 16:37:24 +0530[diff] [blame]99#define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \
Aneesh Bansal5050f6f2015-06-16 10:36:43 +0530[diff] [blame]100 CONFIG_BS_COPY_CMD \
101 CONFIG_SECBOOT
gaurav rana98cb0ef2015-03-10 14:08:50 +0530[diff] [blame]102
103#endif
104#endif