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Commit | Line | Data |
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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 | ||
2bfe4890 SJ |
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 | ||
98cb0efd | 55 | #ifdef CONFIG_BOOTSCRIPT_KEY_HASH |
56 | #define CONFIG_SECBOOT \ | |
57 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ | |
2bfe4890 | 58 | CONFIG_SET_BOOTARGS \ |
98cb0efd | 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)";" \ | |
2bfe4890 | 67 | CONFIG_SET_BOOTARGS \ |
98cb0efd | 68 | CONFIG_EXTRA_ENV \ |
69 | "esbc_validate $bs_hdraddr;" \ | |
70 | "source $img_addr;" \ | |
71 | "esbc_halt\0" | |
72 | #endif | |
73 | ||
5050f6f0 AB |
74 | #ifdef CONFIG_BOOTSCRIPT_COPY_RAM |
75 | #define CONFIG_BS_COPY_ENV \ | |
76 | "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \ | |
69d4b48c | 77 | "setenv bs_hdr_device " __stringify(CONFIG_BS_HDR_ADDR_DEVICE)";" \ |
5050f6f0 AB |
78 | "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \ |
79 | "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \ | |
69d4b48c | 80 | "setenv bs_device " __stringify(CONFIG_BS_ADDR_DEVICE)";" \ |
5050f6f0 AB |
81 | "setenv bs_size " __stringify(CONFIG_BS_SIZE)";" |
82 | ||
3f701cc5 | 83 | /* For secure boot flow, default environment used will be used */ |
762f92a6 RG |
84 | #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \ |
85 | defined(CONFIG_SD_BOOT) | |
86 | #if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT) | |
5050f6f0 | 87 | #define CONFIG_BS_COPY_CMD \ |
69d4b48c SG |
88 | "nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \ |
89 | "nand read $bs_ram $bs_device $bs_size ;" | |
69d4b48c SG |
90 | #elif defined(CONFIG_SD_BOOT) |
91 | #define CONFIG_BS_COPY_CMD \ | |
92 | "mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \ | |
93 | "mmc read $bs_ram $bs_device $bs_size ;" | |
762f92a6 RG |
94 | #endif |
95 | #else | |
3f701cc5 | 96 | #define CONFIG_BS_COPY_CMD \ |
69d4b48c SG |
97 | "cp.b $bs_hdr_device $bs_hdr_ram $bs_hdr_size ;" \ |
98 | "cp.b $bs_device $bs_ram $bs_size ;" | |
98cb0efd | 99 | #endif |
3f701cc5 | 100 | #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */ |
98cb0efd | 101 | |
5050f6f0 AB |
102 | #ifndef CONFIG_BS_COPY_ENV |
103 | #define CONFIG_BS_COPY_ENV | |
104 | #endif | |
105 | ||
106 | #ifndef CONFIG_BS_COPY_CMD | |
107 | #define CONFIG_BS_COPY_CMD | |
108 | #endif | |
109 | ||
bdc22074 | 110 | #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \ |
5050f6f0 AB |
111 | CONFIG_BS_COPY_CMD \ |
112 | CONFIG_SECBOOT | |
98cb0efd | 113 | |
114 | #endif | |
115 | #endif |