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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) | |
58 | #if defined(CONFIG_RAMBOOT_SPIFLASH) | |
59 | #undef CONFIG_ENV_IS_IN_SPI_FLASH | |
60 | #elif defined(CONFIG_RAMBOOT_NAND) | |
61 | #undef CONFIG_ENV_IS_IN_NAND | |
62 | #elif defined(CONFIG_RAMBOOT_SDCARD) | |
63 | #undef CONFIG_ENV_IS_IN_MMC | |
64 | #endif | |
65 | #else /*CONFIG_SYS_RAMBOOT*/ | |
66 | #undef CONFIG_ENV_IS_IN_FLASH | |
67 | #endif | |
68 | ||
69 | #define CONFIG_ENV_IS_NOWHERE | |
70 | ||
71 | /* | |
72 | * We don't want boot delay for secure boot flow | |
73 | * before autoboot starts | |
74 | */ | |
75 | #undef CONFIG_BOOTDELAY | |
76 | #define CONFIG_BOOTDELAY 0 | |
77 | #undef CONFIG_BOOTCOMMAND | |
78 | #define CONFIG_BOOTCOMMAND CONFIG_SECBOOT | |
79 | ||
80 | /* | |
81 | * CONFIG_ZERO_BOOTDELAY_CHECK should not be defined for | |
82 | * secure boot flow as defining this would enable a user to | |
83 | * reach uboot prompt by pressing some key before start of | |
84 | * autoboot | |
85 | */ | |
86 | #undef CONFIG_ZERO_BOOTDELAY_CHECK | |
87 | ||
88 | #endif | |
89 | #endif |