ad5fbc6e88
Add in the ability to modify the distro boot filename. Whilst not immediately useful in normal usage, it allows an alternative configuration to be provided when other u-boot functionality is used, such as bootcount limit, to fallback to an alternative boot configuration. In this case we can follow the same boot path as for normal boot, just using an alternatively named configuration file. For example, by providing the following `altbootcmd` when bootcount is in use: altbootcmd=setenv boot_extlinx_conf extlinux-rollback.conf; \ run distro_bootcmd Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
422 lines
16 KiB
C
422 lines
16 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2014
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* NVIDIA Corporation <www.nvidia.com>
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*
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* Copyright 2014 Red Hat, Inc.
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*/
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#ifndef _CONFIG_CMD_DISTRO_BOOTCMD_H
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#define _CONFIG_CMD_DISTRO_BOOTCMD_H
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/*
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* A note on error handling: It is possible for BOOT_TARGET_DEVICES to
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* reference a device that is not enabled in the U-Boot configuration, e.g.
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* it may include MMC in the list without CONFIG_CMD_MMC being enabled. Given
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* that BOOT_TARGET_DEVICES is a macro that's expanded by the C pre-processor
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* at compile time, it's not possible to detect and report such problems via
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* a simple #ifdef/#error combination. Still, the code needs to report errors.
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* The best way I've found to do this is to make BOOT_TARGET_DEVICES expand to
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* reference a non-existent symbol, and have the name of that symbol encode
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* the error message. Consequently, this file contains references to e.g.
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* BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC. Given the
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* prevalence of capitals here, this looks like a pre-processor macro and
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* hence seems like it should be all capitals, but it's really an error
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* message that includes some other pre-processor symbols in the text.
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*/
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#define BOOTENV_SHARED_BLKDEV_BODY(devtypel) \
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"if " #devtypel " dev ${devnum}; then " \
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"setenv devtype " #devtypel "; " \
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"run scan_dev_for_boot_part; " \
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"fi\0"
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#define BOOTENV_SHARED_BLKDEV(devtypel) \
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#devtypel "_boot=" \
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BOOTENV_SHARED_BLKDEV_BODY(devtypel)
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#define BOOTENV_DEV_BLKDEV(devtypeu, devtypel, instance) \
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"bootcmd_" #devtypel #instance "=" \
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"setenv devnum " #instance "; " \
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"run " #devtypel "_boot\0"
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#define BOOTENV_DEV_NAME_BLKDEV(devtypeu, devtypel, instance) \
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#devtypel #instance " "
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#ifdef CONFIG_SANDBOX
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#define BOOTENV_SHARED_HOST BOOTENV_SHARED_BLKDEV(host)
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#define BOOTENV_DEV_HOST BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_HOST BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_SHARED_HOST
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#define BOOTENV_DEV_HOST \
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BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
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#define BOOTENV_DEV_NAME_HOST \
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BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
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#endif
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#ifdef CONFIG_CMD_MMC
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#define BOOTENV_SHARED_MMC BOOTENV_SHARED_BLKDEV(mmc)
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#define BOOTENV_DEV_MMC BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_MMC BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_SHARED_MMC
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#define BOOTENV_DEV_MMC \
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BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
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#define BOOTENV_DEV_NAME_MMC \
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BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
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#endif
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#ifdef CONFIG_CMD_UBIFS
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#define BOOTENV_SHARED_UBIFS \
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"ubifs_boot=" \
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"env exists bootubipart || " \
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"env set bootubipart UBI; " \
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"env exists bootubivol || " \
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"env set bootubivol boot; " \
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"if ubi part ${bootubipart} && " \
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"ubifsmount ubi${devnum}:${bootubivol}; " \
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"then " \
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"setenv devtype ubi; " \
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"run scan_dev_for_boot; " \
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"fi\0"
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#define BOOTENV_DEV_UBIFS BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_UBIFS BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_SHARED_UBIFS
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#define BOOTENV_DEV_UBIFS \
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BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
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#define BOOTENV_DEV_NAME_UBIFS \
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BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
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#endif
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#ifdef CONFIG_EFI_LOADER
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#if defined(CONFIG_ARM64)
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#define BOOTEFI_NAME "bootaa64.efi"
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#elif defined(CONFIG_ARM)
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#define BOOTEFI_NAME "bootarm.efi"
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#elif defined(CONFIG_X86_RUN_32BIT)
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#define BOOTEFI_NAME "bootia32.efi"
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#elif defined(CONFIG_X86_RUN_64BIT)
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#define BOOTEFI_NAME "bootx64.efi"
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#elif defined(CONFIG_CPU_RISCV_32)
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#define BOOTEFI_NAME "bootriscv32.efi"
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#elif defined(CONFIG_CPU_RISCV_64)
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#define BOOTEFI_NAME "bootriscv64.efi"
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#endif
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#endif
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#ifdef BOOTEFI_NAME
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#if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
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/*
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* On 32bit ARM systems there is a reasonable number of systems that follow
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* the $soc-$board$boardver.dtb name scheme for their device trees. Use that
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* scheme if we don't have an explicit fdtfile variable.
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*/
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#define BOOTENV_EFI_SET_FDTFILE_FALLBACK \
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"if test -z \"${fdtfile}\" -a -n \"${soc}\"; then " \
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"setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; " \
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"fi; "
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#else
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#define BOOTENV_EFI_SET_FDTFILE_FALLBACK
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#endif
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#define BOOTENV_SHARED_EFI \
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"boot_efi_binary=" \
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"if fdt addr ${fdt_addr_r}; then " \
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"bootefi bootmgr ${fdt_addr_r};" \
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"else " \
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"bootefi bootmgr ${fdtcontroladdr};" \
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"fi;" \
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"load ${devtype} ${devnum}:${distro_bootpart} " \
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"${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \
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"if fdt addr ${fdt_addr_r}; then " \
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"bootefi ${kernel_addr_r} ${fdt_addr_r};" \
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"else " \
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"bootefi ${kernel_addr_r} ${fdtcontroladdr};" \
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"fi\0" \
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\
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"load_efi_dtb=" \
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"load ${devtype} ${devnum}:${distro_bootpart} " \
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"${fdt_addr_r} ${prefix}${efi_fdtfile}\0" \
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\
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"efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \
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"scan_dev_for_efi=" \
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"setenv efi_fdtfile ${fdtfile}; " \
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BOOTENV_EFI_SET_FDTFILE_FALLBACK \
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"for prefix in ${efi_dtb_prefixes}; do " \
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"if test -e ${devtype} " \
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"${devnum}:${distro_bootpart} " \
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"${prefix}${efi_fdtfile}; then " \
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"run load_efi_dtb; " \
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"fi;" \
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"done;" \
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"if test -e ${devtype} ${devnum}:${distro_bootpart} " \
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"efi/boot/"BOOTEFI_NAME"; then " \
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"echo Found EFI removable media binary " \
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"efi/boot/"BOOTEFI_NAME"; " \
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"run boot_efi_binary; " \
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"echo EFI LOAD FAILED: continuing...; " \
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"fi; " \
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"setenv efi_fdtfile\0"
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#define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;"
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#else
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#define BOOTENV_SHARED_EFI
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#define SCAN_DEV_FOR_EFI
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#endif
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#ifdef CONFIG_SATA
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#define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata)
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#define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_SHARED_SATA
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#define BOOTENV_DEV_SATA \
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BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA
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#define BOOTENV_DEV_NAME_SATA \
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BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_SATA
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#endif
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#ifdef CONFIG_SCSI
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#define BOOTENV_RUN_SCSI_INIT "run scsi_init; "
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#define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; "
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#define BOOTENV_SHARED_SCSI \
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"scsi_init=" \
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"if ${scsi_need_init}; then " \
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"setenv scsi_need_init false; " \
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"scsi scan; " \
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"fi\0" \
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\
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"scsi_boot=" \
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BOOTENV_RUN_SCSI_INIT \
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BOOTENV_SHARED_BLKDEV_BODY(scsi)
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#define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_RUN_SCSI_INIT
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#define BOOTENV_SET_SCSI_NEED_INIT
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#define BOOTENV_SHARED_SCSI
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#define BOOTENV_DEV_SCSI \
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BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI
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#define BOOTENV_DEV_NAME_SCSI \
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BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI
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#endif
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#ifdef CONFIG_IDE
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#define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide)
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#define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_SHARED_IDE
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#define BOOTENV_DEV_IDE \
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BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE
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#define BOOTENV_DEV_NAME_IDE \
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BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_IDE
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#endif
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#if defined(CONFIG_DM_PCI)
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#define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; "
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#define BOOTENV_SHARED_PCI \
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"boot_net_pci_enum=pci enum\0"
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#else
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#define BOOTENV_RUN_NET_PCI_ENUM
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#define BOOTENV_SHARED_PCI
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#endif
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#ifdef CONFIG_CMD_USB
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#define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; "
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#define BOOTENV_SHARED_USB \
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"boot_net_usb_start=usb start\0" \
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"usb_boot=" \
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"usb start; " \
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BOOTENV_SHARED_BLKDEV_BODY(usb)
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#define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV
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#define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV
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#else
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#define BOOTENV_RUN_NET_USB_START
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#define BOOTENV_SHARED_USB
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#define BOOTENV_DEV_USB \
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BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
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#define BOOTENV_DEV_NAME_USB \
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BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
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#endif
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#if defined(CONFIG_CMD_DHCP)
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#if defined(CONFIG_EFI_LOADER)
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/* http://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xml */
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#if defined(CONFIG_ARM64) || defined(__aarch64__)
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#define BOOTENV_EFI_PXE_ARCH "0xb"
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#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00011:UNDI:003000"
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#elif defined(CONFIG_ARM) || defined(__arm__)
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#define BOOTENV_EFI_PXE_ARCH "0xa"
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#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00010:UNDI:003000"
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#elif defined(CONFIG_X86) || defined(__x86_64__)
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#define BOOTENV_EFI_PXE_ARCH "0x7"
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#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00007:UNDI:003000"
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#elif defined(__i386__)
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#define BOOTENV_EFI_PXE_ARCH "0x6"
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#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00006:UNDI:003000"
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#elif defined(CONFIG_CPU_RISCV_32) || ((defined(__riscv) && __riscv_xlen == 32))
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#define BOOTENV_EFI_PXE_ARCH "0x19"
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#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00025:UNDI:003000"
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#elif defined(CONFIG_CPU_RISCV_64) || ((defined(__riscv) && __riscv_xlen == 64))
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#define BOOTENV_EFI_PXE_ARCH "0x1b"
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#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00027:UNDI:003000"
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#elif defined(CONFIG_SANDBOX)
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# error "sandbox EFI support is only supported on ARM and x86"
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#else
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#error Please specify an EFI client identifier
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#endif
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/*
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* Ask the dhcp server for an EFI binary. If we get one, check for a
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* device tree in the same folder. Then boot everything. If the file was
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* not an EFI binary, we just return from the bootefi command and continue.
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*/
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#define BOOTENV_EFI_RUN_DHCP \
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"setenv efi_fdtfile ${fdtfile}; " \
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BOOTENV_EFI_SET_FDTFILE_FALLBACK \
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"setenv efi_old_vci ${bootp_vci};" \
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"setenv efi_old_arch ${bootp_arch};" \
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"setenv bootp_vci " BOOTENV_EFI_PXE_VCI ";" \
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"setenv bootp_arch " BOOTENV_EFI_PXE_ARCH ";" \
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"if dhcp ${kernel_addr_r}; then " \
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"tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};" \
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"if fdt addr ${fdt_addr_r}; then " \
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"bootefi ${kernel_addr_r} ${fdt_addr_r}; " \
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"else " \
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"bootefi ${kernel_addr_r} ${fdtcontroladdr};" \
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"fi;" \
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"fi;" \
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"setenv bootp_vci ${efi_old_vci};" \
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"setenv bootp_arch ${efi_old_arch};" \
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"setenv efi_fdtfile;" \
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"setenv efi_old_arch;" \
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"setenv efi_old_vci;"
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#else
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#define BOOTENV_EFI_RUN_DHCP
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#endif
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#define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
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"bootcmd_dhcp=" \
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BOOTENV_RUN_NET_USB_START \
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BOOTENV_RUN_NET_PCI_ENUM \
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"if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
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"source ${scriptaddr}; " \
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"fi;" \
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BOOTENV_EFI_RUN_DHCP \
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"\0"
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#define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
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"dhcp "
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#else
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#define BOOTENV_DEV_DHCP \
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BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
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#define BOOTENV_DEV_NAME_DHCP \
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BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
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#endif
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#if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
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#define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
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"bootcmd_pxe=" \
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BOOTENV_RUN_NET_USB_START \
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BOOTENV_RUN_NET_PCI_ENUM \
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"dhcp; " \
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"if pxe get; then " \
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"pxe boot; " \
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"fi\0"
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#define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
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"pxe "
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#else
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#define BOOTENV_DEV_PXE \
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BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
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#define BOOTENV_DEV_NAME_PXE \
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BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
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#endif
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#define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
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BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
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#define BOOTENV_BOOT_TARGETS \
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"boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
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#define BOOTENV_DEV(devtypeu, devtypel, instance) \
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BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
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#define BOOTENV \
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BOOTENV_SHARED_HOST \
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BOOTENV_SHARED_MMC \
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BOOTENV_SHARED_PCI \
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BOOTENV_SHARED_USB \
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BOOTENV_SHARED_SATA \
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BOOTENV_SHARED_SCSI \
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BOOTENV_SHARED_IDE \
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BOOTENV_SHARED_UBIFS \
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BOOTENV_SHARED_EFI \
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"boot_prefixes=/ /boot/\0" \
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"boot_scripts=boot.scr.uimg boot.scr\0" \
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"boot_script_dhcp=boot.scr.uimg\0" \
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BOOTENV_BOOT_TARGETS \
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\
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"boot_syslinux_conf=extlinux/extlinux.conf\0" \
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"boot_extlinux=" \
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"sysboot ${devtype} ${devnum}:${distro_bootpart} any " \
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"${scriptaddr} ${prefix}${boot_syslinux_conf}\0" \
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\
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"scan_dev_for_extlinux=" \
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"if test -e ${devtype} " \
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"${devnum}:${distro_bootpart} " \
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"${prefix}${boot_syslinux_conf}; then " \
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"echo Found ${prefix}${boot_syslinux_conf}; " \
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"run boot_extlinux; " \
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"echo SCRIPT FAILED: continuing...; " \
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"fi\0" \
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\
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"boot_a_script=" \
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"load ${devtype} ${devnum}:${distro_bootpart} " \
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"${scriptaddr} ${prefix}${script}; " \
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"source ${scriptaddr}\0" \
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\
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"scan_dev_for_scripts=" \
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"for script in ${boot_scripts}; do " \
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"if test -e ${devtype} " \
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"${devnum}:${distro_bootpart} " \
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"${prefix}${script}; then " \
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"echo Found U-Boot script " \
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"${prefix}${script}; " \
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"run boot_a_script; " \
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"echo SCRIPT FAILED: continuing...; " \
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"fi; " \
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"done\0" \
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\
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"scan_dev_for_boot=" \
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"echo Scanning ${devtype} " \
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"${devnum}:${distro_bootpart}...; " \
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"for prefix in ${boot_prefixes}; do " \
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"run scan_dev_for_extlinux; " \
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"run scan_dev_for_scripts; " \
|
|
"done;" \
|
|
SCAN_DEV_FOR_EFI \
|
|
"\0" \
|
|
\
|
|
"scan_dev_for_boot_part=" \
|
|
"part list ${devtype} ${devnum} -bootable devplist; " \
|
|
"env exists devplist || setenv devplist 1; " \
|
|
"for distro_bootpart in ${devplist}; do " \
|
|
"if fstype ${devtype} " \
|
|
"${devnum}:${distro_bootpart} " \
|
|
"bootfstype; then " \
|
|
"run scan_dev_for_boot; " \
|
|
"fi; " \
|
|
"done\0" \
|
|
\
|
|
BOOT_TARGET_DEVICES(BOOTENV_DEV) \
|
|
\
|
|
"distro_bootcmd=" BOOTENV_SET_SCSI_NEED_INIT \
|
|
"for target in ${boot_targets}; do " \
|
|
"run bootcmd_${target}; " \
|
|
"done\0"
|
|
|
|
#ifndef CONFIG_BOOTCOMMAND
|
|
#define CONFIG_BOOTCOMMAND "run distro_bootcmd"
|
|
#endif
|
|
|
|
#endif /* _CONFIG_CMD_DISTRO_BOOTCMD_H */
|