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98cb0efd | 1 | /* |
2 | * Copyright 2015 Freescale Semiconductor, Inc. | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
7 | #ifndef __CONFIG_FSL_SECBOOT_H | |
8 | #define __CONFIG_FSL_SECBOOT_H | |
9 | ||
10 | #ifdef CONFIG_SECURE_BOOT | |
11 | ||
12 | #ifndef CONFIG_CMD_ESBC_VALIDATE | |
13 | #define CONFIG_CMD_ESBC_VALIDATE | |
14 | #endif | |
15 | ||
16 | #ifndef CONFIG_EXTRA_ENV | |
17 | #define CONFIG_EXTRA_ENV "" | |
18 | #endif | |
19 | ||
20 | /* | |
21 | * Control should not reach back to uboot after validation of images | |
22 | * for secure boot flow and therefore bootscript should have | |
23 | * the bootm command. If control reaches back to uboot anyhow | |
24 | * after validating images, core should just spin. | |
25 | */ | |
26 | ||
27 | /* | |
28 | * Define the key hash for boot script here if public/private key pair used to | |
29 | * sign bootscript are different from the SRK hash put in the fuse | |
30 | * Example of defining KEY_HASH is | |
31 | * #define CONFIG_BOOTSCRIPT_KEY_HASH \ | |
32 | * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b" | |
33 | */ | |
34 | ||
35 | #ifdef CONFIG_BOOTSCRIPT_KEY_HASH | |
36 | #define CONFIG_SECBOOT \ | |
37 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ | |
38 | "setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \ | |
39 | "ramdisk_size=600000\';" \ | |
40 | CONFIG_EXTRA_ENV \ | |
41 | "esbc_validate $bs_hdraddr " \ | |
42 | __stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \ | |
43 | "source $img_addr;" \ | |
44 | "esbc_halt\0" | |
45 | #else | |
46 | #define CONFIG_SECBOOT \ | |
47 | "setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \ | |
48 | "setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \ | |
49 | "ramdisk_size=600000\';" \ | |
50 | CONFIG_EXTRA_ENV \ | |
51 | "esbc_validate $bs_hdraddr;" \ | |
52 | "source $img_addr;" \ | |
53 | "esbc_halt\0" | |
54 | #endif | |
55 | ||
56 | /* For secure boot flow, default environment used will be used */ | |
57 | #if defined(CONFIG_SYS_RAMBOOT) | |
5050f6f0 AB |
58 | #ifdef CONFIG_BOOTSCRIPT_COPY_RAM |
59 | #define CONFIG_BS_COPY_ENV \ | |
60 | "setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \ | |
61 | "setenv bs_hdr_flash " __stringify(CONFIG_BS_HDR_ADDR_FLASH)";" \ | |
62 | "setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \ | |
63 | "setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \ | |
64 | "setenv bs_flash " __stringify(CONFIG_BS_ADDR_FLASH)";" \ | |
65 | "setenv bs_size " __stringify(CONFIG_BS_SIZE)";" | |
66 | ||
67 | #if defined(CONFIG_RAMBOOT_NAND) | |
68 | #define CONFIG_BS_COPY_CMD \ | |
69 | "nand read $bs_hdr_ram $bs_hdr_flash $bs_hdr_size ;" \ | |
70 | "nand read $bs_ram $bs_flash $bs_size ;" | |
71 | #endif /* CONFIG_RAMBOOT_NAND */ | |
72 | #endif /* CONFIG_BOOTSCRIPT_COPY_RAM */ | |
73 | ||
98cb0efd | 74 | #if defined(CONFIG_RAMBOOT_SPIFLASH) |
75 | #undef CONFIG_ENV_IS_IN_SPI_FLASH | |
76 | #elif defined(CONFIG_RAMBOOT_NAND) | |
77 | #undef CONFIG_ENV_IS_IN_NAND | |
78 | #elif defined(CONFIG_RAMBOOT_SDCARD) | |
79 | #undef CONFIG_ENV_IS_IN_MMC | |
80 | #endif | |
81 | #else /*CONFIG_SYS_RAMBOOT*/ | |
82 | #undef CONFIG_ENV_IS_IN_FLASH | |
83 | #endif | |
84 | ||
85 | #define CONFIG_ENV_IS_NOWHERE | |
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 | ||
95 | #define CONFIG_SECBOOT_CMD CONFIG_BS_COPY_ENV \ | |
96 | CONFIG_BS_COPY_CMD \ | |
97 | CONFIG_SECBOOT | |
98cb0efd | 98 | /* |
99 | * We don't want boot delay for secure boot flow | |
100 | * before autoboot starts | |
101 | */ | |
102 | #undef CONFIG_BOOTDELAY | |
103 | #define CONFIG_BOOTDELAY 0 | |
104 | #undef CONFIG_BOOTCOMMAND | |
5050f6f0 | 105 | #define CONFIG_BOOTCOMMAND CONFIG_SECBOOT_CMD |
98cb0efd | 106 | |
107 | /* | |
108 | * CONFIG_ZERO_BOOTDELAY_CHECK should not be defined for | |
109 | * secure boot flow as defining this would enable a user to | |
110 | * reach uboot prompt by pressing some key before start of | |
111 | * autoboot | |
112 | */ | |
113 | #undef CONFIG_ZERO_BOOTDELAY_CHECK | |
114 | ||
115 | #endif | |
116 | #endif |