mirror of
https://github.com/AsahiLinux/u-boot
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5050f6f0e5
For running Chain of Trust when doing Secure Boot from NAND, the Bootscript header and bootscript must be copied from NAND to RAM(DDR). The addresses and commands for the same have been defined. Signed-off-by: Saksham Jain <saksham@freescale.com> Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
116 lines
3.2 KiB
C
116 lines
3.2 KiB
C
/*
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* Copyright 2015 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __CONFIG_FSL_SECBOOT_H
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#define __CONFIG_FSL_SECBOOT_H
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#ifdef CONFIG_SECURE_BOOT
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#ifndef CONFIG_CMD_ESBC_VALIDATE
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#define CONFIG_CMD_ESBC_VALIDATE
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#endif
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#ifndef CONFIG_EXTRA_ENV
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#define CONFIG_EXTRA_ENV ""
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#endif
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/*
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* Control should not reach back to uboot after validation of images
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* for secure boot flow and therefore bootscript should have
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* the bootm command. If control reaches back to uboot anyhow
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* after validating images, core should just spin.
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*/
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/*
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* Define the key hash for boot script here if public/private key pair used to
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* sign bootscript are different from the SRK hash put in the fuse
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* Example of defining KEY_HASH is
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* #define CONFIG_BOOTSCRIPT_KEY_HASH \
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* "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b"
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*/
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#ifdef CONFIG_BOOTSCRIPT_KEY_HASH
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#define CONFIG_SECBOOT \
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"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
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"setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \
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"ramdisk_size=600000\';" \
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CONFIG_EXTRA_ENV \
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"esbc_validate $bs_hdraddr " \
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__stringify(CONFIG_BOOTSCRIPT_KEY_HASH)";" \
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"source $img_addr;" \
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"esbc_halt\0"
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#else
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#define CONFIG_SECBOOT \
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"setenv bs_hdraddr " __stringify(CONFIG_BOOTSCRIPT_HDR_ADDR)";" \
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"setenv bootargs \'root=/dev/ram rw console=ttyS0,115200 " \
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"ramdisk_size=600000\';" \
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CONFIG_EXTRA_ENV \
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"esbc_validate $bs_hdraddr;" \
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"source $img_addr;" \
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"esbc_halt\0"
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#endif
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/* For secure boot flow, default environment used will be used */
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#if defined(CONFIG_SYS_RAMBOOT)
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#ifdef CONFIG_BOOTSCRIPT_COPY_RAM
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#define CONFIG_BS_COPY_ENV \
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"setenv bs_hdr_ram " __stringify(CONFIG_BS_HDR_ADDR_RAM)";" \
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"setenv bs_hdr_flash " __stringify(CONFIG_BS_HDR_ADDR_FLASH)";" \
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"setenv bs_hdr_size " __stringify(CONFIG_BS_HDR_SIZE)";" \
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"setenv bs_ram " __stringify(CONFIG_BS_ADDR_RAM)";" \
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"setenv bs_flash " __stringify(CONFIG_BS_ADDR_FLASH)";" \
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"setenv bs_size " __stringify(CONFIG_BS_SIZE)";"
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#if defined(CONFIG_RAMBOOT_NAND)
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#define CONFIG_BS_COPY_CMD \
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"nand read $bs_hdr_ram $bs_hdr_flash $bs_hdr_size ;" \
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"nand read $bs_ram $bs_flash $bs_size ;"
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#endif /* CONFIG_RAMBOOT_NAND */
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#endif /* CONFIG_BOOTSCRIPT_COPY_RAM */
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#if defined(CONFIG_RAMBOOT_SPIFLASH)
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#undef CONFIG_ENV_IS_IN_SPI_FLASH
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#elif defined(CONFIG_RAMBOOT_NAND)
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#undef CONFIG_ENV_IS_IN_NAND
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#elif defined(CONFIG_RAMBOOT_SDCARD)
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#undef CONFIG_ENV_IS_IN_MMC
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#endif
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#else /*CONFIG_SYS_RAMBOOT*/
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#undef CONFIG_ENV_IS_IN_FLASH
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#endif
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#define CONFIG_ENV_IS_NOWHERE
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#ifndef CONFIG_BS_COPY_ENV
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#define CONFIG_BS_COPY_ENV
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#endif
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#ifndef CONFIG_BS_COPY_CMD
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#define CONFIG_BS_COPY_CMD
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#endif
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#define CONFIG_SECBOOT_CMD CONFIG_BS_COPY_ENV \
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CONFIG_BS_COPY_CMD \
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CONFIG_SECBOOT
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/*
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* We don't want boot delay for secure boot flow
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* before autoboot starts
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*/
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#undef CONFIG_BOOTDELAY
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#define CONFIG_BOOTDELAY 0
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#undef CONFIG_BOOTCOMMAND
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#define CONFIG_BOOTCOMMAND CONFIG_SECBOOT_CMD
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/*
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* CONFIG_ZERO_BOOTDELAY_CHECK should not be defined for
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* secure boot flow as defining this would enable a user to
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* reach uboot prompt by pressing some key before start of
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* autoboot
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*/
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#undef CONFIG_ZERO_BOOTDELAY_CHECK
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#endif
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#endif
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