mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
221ae89bc8
In order to maintain the chain of trust, each stage of the boot process will first authenticate each binary it loads before continuing. To extend this to the kernal and its dtbs we can package the kernal and its dtbs into another fitImage for Uboot to authenticate and extend the chain of trust all the way to the kernel. When 'boot_fit' is set, indicating we're using the secure bootflow, look for and authenticate the kernel's fitImage. Signed-off-by: Judith Mendez <jm@ti.com> Signed-off-by: Bryan Brattlof <bb@ti.com>
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Configuration header file for K3 AM62Ax SoC family
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*
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* Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
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*/
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#ifndef __CONFIG_AM62AX_EVM_H
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#define __CONFIG_AM62AX_EVM_H
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#include <linux/sizes.h>
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#include <environment/ti/mmc.h>
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#include <environment/ti/k3_dfu.h>
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/* DDR Configuration */
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#define CFG_SYS_SDRAM_BASE1 0x880000000
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#define PARTS_DEFAULT \
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/* Linux partitions */ \
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"name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}\0" \
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/* U-Boot general configuration */
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#define EXTRA_ENV_AM62A7_BOARD_SETTINGS \
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"default_device_tree=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
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"findfdt=" \
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"setenv name_fdt ${default_device_tree};" \
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"setenv fdtfile ${name_fdt}\0" \
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"name_kern=Image\0" \
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"console=ttyS2,115200n8\0" \
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"args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 " \
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"${mtdparts}\0" \
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"run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
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/* U-Boot MMC-specific configuration */
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#define EXTRA_ENV_AM62A7_BOARD_SETTINGS_MMC \
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"boot=mmc\0" \
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"mmcdev=1\0" \
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"bootpart=1:2\0" \
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"bootdir=/boot\0" \
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"rd_spec=-\0" \
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"init_mmc=run args_all args_mmc\0" \
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"get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0" \
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"get_overlay_mmc=" \
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"fdt address ${fdtaddr};" \
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"fdt resize 0x100000;" \
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"for overlay in $name_overlays;" \
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"do;" \
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"load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && " \
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"fdt apply ${dtboaddr};" \
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"done;\0" \
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"get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \
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"${bootdir}/${name_kern}\0" \
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"get_fit_mmc=load mmc ${bootpart} ${addr_fit} " \
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"${bootdir}/${name_fit}\0" \
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"partitions=" PARTS_DEFAULT
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#define BOOTENV_DEV_TI_MMC(devtypeu, devtypel, instance) \
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DEFAULT_MMC_TI_ARGS \
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EXTRA_ENV_AM62A7_BOARD_SETTINGS_MMC \
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"bootcmd_ti_mmc=" \
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"run findfdt; run envboot; run init_mmc;" \
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"if test ${boot_fit} -eq 1; then;" \
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"run get_fit_mmc; run get_overlaystring;" \
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"run run_fit;" \
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"else;" \
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"run get_kern_mmc; run get_fdt_mmc;" \
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"run get_overlay_mmc;" \
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"run run_kern;" \
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"fi;\0"
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#define BOOTENV_DEV_NAME_TI_MMC(devtyeu, devtypel, instance) \
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"ti_mmc "
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#if CONFIG_IS_ENABLED(CMD_MMC)
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#define BOOT_TARGET_MMC(func) \
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func(TI_MMC, ti_mmc, na)
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#else
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#define BOOT_TARGET_MMC(func)
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#endif /* CONFIG_IS_ENABLED(CMD_MMC) */
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#define BOOT_TARGET_DEVICES(func) \
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BOOT_TARGET_MMC(func)
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#include <config_distro_bootcmd.h>
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/* Incorporate settings into the U-Boot environment */
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#define CFG_EXTRA_ENV_SETTINGS \
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DEFAULT_LINUX_BOOT_ENV \
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DEFAULT_FIT_TI_ARGS \
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EXTRA_ENV_AM62A7_BOARD_SETTINGS \
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BOOTENV
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/* Now for the remaining common defines */
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#include <configs/ti_armv7_common.h>
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#endif /* __CONFIG_AM62A7_EVM_H */
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