config_fsl_secboot.h
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/*
* Copyright 2015 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __CONFIG_FSL_SECBOOT_H
#define __CONFIG_FSL_SECBOOT_H
#ifdef CONFIG_SECURE_BOOT
#ifndef CONFIG_CMD_ESBC_VALIDATE
#define CONFIG_CMD_ESBC_VALIDATE
#endif
#ifndef CONFIG_EXTRA_ENV
#define CONFIG_EXTRA_ENV ""
#endif
/*
* Control should not reach back to uboot after validation of images
* for secure boot flow and therefore bootscript should have
* the bootm command. If control reaches back to uboot anyhow
* after validating images, core should just spin.
*/
/*
* Define the key hash for boot script here if public/private key pair used to
* sign bootscript are different from the SRK hash put in the fuse
* Example of defining KEY_HASH is
* #define CONFIG_BOOTSCRIPT_KEY_HASH \
* "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
*/
#ifdef CONFIG_BOOTSCRIPT_KEY_HASH
#define CONFIG_SECBOOT \
"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
"setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \
"ramdisk_size=600000\';" \
CONFIG_EXTRA_ENV \
"esbc_validate $bs_hdraddr " \
__stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
"source $img_addr;" \
"esbc_halt\0"
#else
#define CONFIG_SECBOOT \
"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
"setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \
"ramdisk_size=600000\';" \
CONFIG_EXTRA_ENV \
"esbc_validate $bs_hdraddr;" \
"source $img_addr;" \
"esbc_halt\0"
#endif
/* For secure boot flow, default environment used will be used */
#if defined(CONFIG_SYS_RAMBOOT)
#if defined(CONFIG_RAMBOOT_SPIFLASH)
#undef CONFIG_ENV_IS_IN_SPI_FLASH
#elif defined(CONFIG_RAMBOOT_NAND)
#undef CONFIG_ENV_IS_IN_NAND
#elif defined(CONFIG_RAMBOOT_SDCARD)
#undef CONFIG_ENV_IS_IN_MMC
#endif
#else /*CONFIG_SYS_RAMBOOT*/
#undef CONFIG_ENV_IS_IN_FLASH
#endif
#define CONFIG_ENV_IS_NOWHERE
/*
* We don't want boot delay for secure boot flow
* before autoboot starts
*/
#undef CONFIG_BOOTDELAY
#define CONFIG_BOOTDELAY 0
#undef CONFIG_BOOTCOMMAND
#define CONFIG_BOOTCOMMAND CONFIG_SECBOOT
/*
* CONFIG_ZERO_BOOTDELAY_CHECK should not be defined for
* secure boot flow as defining this would enable a user to
* reach uboot prompt by pressing some key before start of
* autoboot
*/
#undef CONFIG_ZERO_BOOTDELAY_CHECK
#endif
#endif