projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 98cb0efd | 1 | /* |
| 2 | * Copyright 2015 Freescale Semiconductor, Inc. | |
| 3 | * | |
| 4 | * SPDX-License-Identifier: GPL-2.0+ | |
| 5 | */ | |
| 6 | ||
| bdc22074 AB |
7 | #ifndef __CONFIG_FSL_CHAIN_TRUST_H |
| 8 | #define __CONFIG_FSL_CHAIN_TRUST_H | |
| 98cb0efd | 9 | |
| bdc22074 AB |
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 | */ | |
| 98cb0efd | 14 | #ifdef CONFIG_SECURE_BOOT |
| 15 | ||
| bdc22074 AB |
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 | ||
| 98cb0efd | 24 | #endif |
| 25 | ||
| bdc22074 AB |
26 | #ifdef CONFIG_CHAIN_OF_TRUST |
| 27 | ||
| 98cb0efd | 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 | ||
| 68 | /* For secure boot flow, default environment used will be used */ | |
| 69 | #if defined(CONFIG_SYS_RAMBOOT) | |
| 5050f6f0 AB |
70 | #ifdef CONFIG_BOOTSCRIPT_COPY_RAM |
| 71 | #define CONFIG_BS_COPY_ENV \ | |
| 72 | "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \ | |
| 73 | "setenv bs_hdr_flash " __stringify(CONFIG_BS_HDR_ADDR_FLASH)";" \ | |
| 74 | "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \ | |
| 75 | "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \ | |
| 76 | "setenv bs_flash " __stringify(CONFIG_BS_ADDR_FLASH)";" \ | |
| 77 | "setenv bs_size " __stringify(CONFIG_BS_SIZE)";" | |
| 78 | ||
| 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 */ | |
| 84 | #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */ | |
| 85 | ||
| 98cb0efd | 86 | #endif |
| 87 | ||
| 5050f6f0 AB |
88 | #ifndef CONFIG_BS_COPY_ENV |
| 89 | #define CONFIG_BS_COPY_ENV | |
| 90 | #endif | |
| 91 | ||
| 92 | #ifndef CONFIG_BS_COPY_CMD | |
| 93 | #define CONFIG_BS_COPY_CMD | |
| 94 | #endif | |
| 95 | ||
| bdc22074 | 96 | #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \ |
| 5050f6f0 AB |
97 | CONFIG_BS_COPY_CMD \ |
| 98 | CONFIG_SECBOOT | |
| 98cb0efd | 99 | |
| 100 | #endif | |
| 101 | #endif |