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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
98cb0efd | 2 | /* |
3 | * Copyright 2015 Freescale Semiconductor, Inc. | |
98cb0efd | 4 | */ |
5 | ||
bdc22074 AB |
6 | #ifndef __CONFIG_FSL_CHAIN_TRUST_H |
7 | #define __CONFIG_FSL_CHAIN_TRUST_H | |
98cb0efd | 8 | |
1af3c7f4 SG |
9 | #include <linux/stringify.h> |
10 | ||
bdc22074 AB |
11 | #ifdef CONFIG_CHAIN_OF_TRUST |
12 | ||
98cb0efd | 13 | #ifndef CONFIG_EXTRA_ENV |
14 | #define CONFIG_EXTRA_ENV "" | |
15 | #endif | |
16 | ||
17 | /* | |
18 | * Control should not reach back to uboot after validation of images | |
19 | * for secure boot flow and therefore bootscript should have | |
20 | * the bootm command. If control reaches back to uboot anyhow | |
21 | * after validating images, core should just spin. | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Define the key hash for boot script here if public/private key pair used to | |
26 | * sign bootscript are different from the SRK hash put in the fuse | |
27 | * Example of defining KEY_HASH is | |
28 | * #define CONFIG_BOOTSCRIPT_KEY_HASH \ | |
29 | * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b" | |
30 | */ | |
31 | ||
5abc1a45 | 32 | #ifdef CONFIG_USE_BOOTARGS |
2bfe4890 SJ |
33 | #define CONFIG_SET_BOOTARGS "setenv bootargs \'" CONFIG_BOOTARGS" \';" |
34 | #else | |
35 | #define CONFIG_SET_BOOTARGS "setenv bootargs \'root=/dev/ram " \ | |
36 | "rw console=ttyS0,115200 ramdisk_size=600000\';" | |
37 | #endif | |
38 | ||
39 | ||
98cb0efd | 40 | #ifdef CONFIG_BOOTSCRIPT_KEY_HASH |
41 | #define CONFIG_SECBOOT \ | |
42 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ | |
2bfe4890 | 43 | CONFIG_SET_BOOTARGS \ |
98cb0efd | 44 | CONFIG_EXTRA_ENV \ |
45 | "esbc_validate $bs_hdraddr " \ | |
46 | __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \ | |
47 | "source $img_addr;" \ | |
48 | "esbc_halt\0" | |
49 | #else | |
50 | #define CONFIG_SECBOOT \ | |
51 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ | |
2bfe4890 | 52 | CONFIG_SET_BOOTARGS \ |
98cb0efd | 53 | CONFIG_EXTRA_ENV \ |
54 | "esbc_validate $bs_hdraddr;" \ | |
55 | "source $img_addr;" \ | |
56 | "esbc_halt\0" | |
57 | #endif | |
58 | ||
5050f6f0 AB |
59 | #ifdef CONFIG_BOOTSCRIPT_COPY_RAM |
60 | #define CONFIG_BS_COPY_ENV \ | |
61 | "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \ | |
69d4b48c | 62 | "setenv bs_hdr_device " __stringify(CONFIG_BS_HDR_ADDR_DEVICE)";" \ |
5050f6f0 AB |
63 | "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \ |
64 | "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \ | |
69d4b48c | 65 | "setenv bs_device " __stringify(CONFIG_BS_ADDR_DEVICE)";" \ |
5050f6f0 AB |
66 | "setenv bs_size " __stringify(CONFIG_BS_SIZE)";" |
67 | ||
3f701cc5 | 68 | /* For secure boot flow, default environment used will be used */ |
762f92a6 RG |
69 | #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_NAND_BOOT) || \ |
70 | defined(CONFIG_SD_BOOT) | |
71 | #if defined(CONFIG_RAMBOOT_NAND) || defined(CONFIG_NAND_BOOT) | |
5050f6f0 | 72 | #define CONFIG_BS_COPY_CMD \ |
69d4b48c SG |
73 | "nand read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \ |
74 | "nand read $bs_ram $bs_device $bs_size ;" | |
69d4b48c SG |
75 | #elif defined(CONFIG_SD_BOOT) |
76 | #define CONFIG_BS_COPY_CMD \ | |
77 | "mmc read $bs_hdr_ram $bs_hdr_device $bs_hdr_size ;" \ | |
78 | "mmc read $bs_ram $bs_device $bs_size ;" | |
762f92a6 RG |
79 | #endif |
80 | #else | |
3f701cc5 | 81 | #define CONFIG_BS_COPY_CMD \ |
69d4b48c SG |
82 | "cp.b $bs_hdr_device $bs_hdr_ram $bs_hdr_size ;" \ |
83 | "cp.b $bs_device $bs_ram $bs_size ;" | |
98cb0efd | 84 | #endif |
3f701cc5 | 85 | #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */ |
98cb0efd | 86 | |
5050f6f0 AB |
87 | #ifndef CONFIG_BS_COPY_ENV |
88 | #define CONFIG_BS_COPY_ENV | |
89 | #endif | |
90 | ||
91 | #ifndef CONFIG_BS_COPY_CMD | |
92 | #define CONFIG_BS_COPY_CMD | |
93 | #endif | |
94 | ||
bdc22074 | 95 | #define CONFIG_CHAIN_BOOT_CMD CONFIG_BS_COPY_ENV \ |
5050f6f0 AB |
96 | CONFIG_BS_COPY_CMD \ |
97 | CONFIG_SECBOOT | |
98cb0efd | 98 | |
99 | #endif | |
100 | #endif |