gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Freescale Semiconductor, Inc. |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
Aneesh Bansal | 4310470 | 2016-01-22 16:37:24 +0530 | [diff] [blame] | 7 | #ifndef __CONFIG_FSL_CHAIN_TRUST_H |
| 8 | #define __CONFIG_FSL_CHAIN_TRUST_H |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 9 | |
Aneesh Bansal | 4310470 | 2016-01-22 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 rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 14 | #ifdef CONFIG_SECURE_BOOT |
| 15 | |
Aneesh Bansal | 4310470 | 2016-01-22 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 rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 24 | #endif |
| 25 | |
Aneesh Bansal | 4310470 | 2016-01-22 16:37:24 +0530 | [diff] [blame] | 26 | #ifdef CONFIG_CHAIN_OF_TRUST |
| 27 | |
gaurav rana | f79323c | 2015-03-10 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 | |
Saksham Jain | 2548469 | 2016-03-23 16:24:43 +0530 | [diff] [blame] | 47 | #ifdef CONFIG_BOOTARGS |
| 48 | #define CONFIG_SET_BOOTARGS "setenv bootargs \'" CONFIG_BOOTARGS" \';" |
| 49 | #else |
| 50 | #define CONFIG_SET_BOOTARGS "setenv bootargs \'root=/dev/ram " \ |
| 51 | "rw console=ttyS0,115200 ramdisk_size=600000\';" |
| 52 | #endif |
| 53 | |
| 54 | |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 55 | #ifdef CONFIG_BOOTSCRIPT_KEY_HASH |
| 56 | #define CONFIG_SECBOOT \ |
| 57 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ |
Saksham Jain | 2548469 | 2016-03-23 16:24:43 +0530 | [diff] [blame] | 58 | CONFIG_SET_BOOTARGS \ |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 59 | CONFIG_EXTRA_ENV \ |
| 60 | "esbc_validate $bs_hdraddr " \ |
| 61 | __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \ |
| 62 | "source $img_addr;" \ |
| 63 | "esbc_halt\0" |
| 64 | #else |
| 65 | #define CONFIG_SECBOOT \ |
| 66 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ |
Saksham Jain | 2548469 | 2016-03-23 16:24:43 +0530 | [diff] [blame] | 67 | CONFIG_SET_BOOTARGS \ |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 68 | CONFIG_EXTRA_ENV \ |
| 69 | "esbc_validate $bs_hdraddr;" \ |
| 70 | "source $img_addr;" \ |
| 71 | "esbc_halt\0" |
| 72 | #endif |
| 73 | |
Aneesh Bansal | b69061d | 2015-06-16 10:36:43 +0530 | [diff] [blame] | 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)";" |
| 82 | |
Saksham Jain | 503eab9 | 2016-03-23 16:24:37 +0530 | [diff] [blame] | 83 | /* For secure boot flow, default environment used will be used */ |
| 84 | #if defined(CONFIG_SYS_RAMBOOT) |
Aneesh Bansal | b69061d | 2015-06-16 10:36:43 +0530 | [diff] [blame] | 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 */ |
Saksham Jain | 503eab9 | 2016-03-23 16:24:37 +0530 | [diff] [blame] | 90 | #else |
| 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 ;" |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 94 | #endif |
Saksham Jain | 503eab9 | 2016-03-23 16:24:37 +0530 | [diff] [blame] | 95 | #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */ |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 96 | |
Aneesh Bansal | b69061d | 2015-06-16 10:36:43 +0530 | [diff] [blame] | 97 | #ifndef CONFIG_BS_COPY_ENV |
| 98 | #define CONFIG_BS_COPY_ENV |
| 99 | #endif |
| 100 | |
| 101 | #ifndef CONFIG_BS_COPY_CMD |
| 102 | #define CONFIG_BS_COPY_CMD |
| 103 | #endif |
| 104 | |
Aneesh Bansal | 4310470 | 2016-01-22 16:37:24 +0530 | [diff] [blame] | 105 | #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \ |
Aneesh Bansal | b69061d | 2015-06-16 10:36:43 +0530 | [diff] [blame] | 106 | CONFIG_BS_COPY_CMD \ |
| 107 | CONFIG_SECBOOT |
gaurav rana | f79323c | 2015-03-10 14:08:50 +0530 | [diff] [blame] | 108 | |
| 109 | #endif |
| 110 | #endif |