config_distro_bootcmd.h
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/*
* (C) Copyright 2014
* NVIDIA Corporation <www.nvidia.com>
*
* Copyright 2014 Red Hat, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _CONFIG_CMD_DISTRO_BOOTCMD_H
#define _CONFIG_CMD_DISTRO_BOOTCMD_H
/*
* A note on error handling: It is possible for BOOT_TARGET_DEVICES to
* reference a device that is not enabled in the U-Boot configuration, e.g.
* it may include MMC in the list without CONFIG_CMD_MMC being enabled. Given
* that BOOT_TARGET_DEVICES is a macro that's expanded by the C pre-processor
* at compile time, it's not possible to detect and report such problems via
* a simple #ifdef/#error combination. Still, the code needs to report errors.
* The best way I've found to do this is to make BOOT_TARGET_DEVICES expand to
* reference a non-existent symbol, and have the name of that symbol encode
* the error message. Consequently, this file contains references to e.g.
* BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC. Given the
* prevalence of capitals here, this looks like a pre-processor macro and
* hence seems like it should be all capitals, but it's really an error
* message that includes some other pre-processor symbols in the text.
*/
#define BOOTENV_SHARED_BLKDEV_BODY(devtypel) \
"if " #devtypel " dev ${devnum}; then " \
"setenv devtype " #devtypel "; " \
"run scan_dev_for_boot_part; " \
"fi\0"
#define BOOTENV_SHARED_BLKDEV(devtypel) \
#devtypel "_boot=" \
BOOTENV_SHARED_BLKDEV_BODY(devtypel)
#define BOOTENV_DEV_BLKDEV(devtypeu, devtypel, instance) \
"bootcmd_" #devtypel #instance "=" \
"setenv devnum " #instance "; " \
"run " #devtypel "_boot\0"
#define BOOTENV_DEV_NAME_BLKDEV(devtypeu, devtypel, instance) \
#devtypel #instance " "
#ifdef CONFIG_SANDBOX
#define BOOTENV_SHARED_HOST BOOTENV_SHARED_BLKDEV(host)
#define BOOTENV_DEV_HOST BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_HOST BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_SHARED_HOST
#define BOOTENV_DEV_HOST \
BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
#define BOOTENV_DEV_NAME_HOST \
BOOT_TARGET_DEVICES_references_HOST_without_CONFIG_SANDBOX
#endif
#ifdef CONFIG_CMD_MMC
#define BOOTENV_SHARED_MMC BOOTENV_SHARED_BLKDEV(mmc)
#define BOOTENV_DEV_MMC BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_MMC BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_SHARED_MMC
#define BOOTENV_DEV_MMC \
BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
#define BOOTENV_DEV_NAME_MMC \
BOOT_TARGET_DEVICES_references_MMC_without_CONFIG_CMD_MMC
#endif
#ifdef CONFIG_CMD_UBIFS
#define BOOTENV_SHARED_UBIFS \
"ubifs_boot=" \
"if ubi part UBI && ubifsmount ubi${devnum}:boot; then " \
"setenv devtype ubi; " \
"setenv bootpart 0; " \
"run scan_dev_for_boot; " \
"fi\0"
#define BOOTENV_DEV_UBIFS BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_UBIFS BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_SHARED_UBIFS
#define BOOTENV_DEV_UBIFS \
BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
#define BOOTENV_DEV_NAME_UBIFS \
BOOT_TARGET_DEVICES_references_UBIFS_without_CONFIG_CMD_UBIFS
#endif
#ifdef CONFIG_EFI_LOADER
#if defined(CONFIG_ARM64)
#define BOOTEFI_NAME "bootaa64.efi"
#elif defined(CONFIG_ARM)
#define BOOTEFI_NAME "bootarm.efi"
#endif
#endif
#ifdef BOOTEFI_NAME
#if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
/*
* On 32bit ARM systems there is a reasonable number of systems that follow
* the $soc-$board$boardver.dtb name scheme for their device trees. Use that
* scheme if we don't have an explicit fdtfile variable.
*/
#define BOOTENV_EFI_SET_FDTFILE_FALLBACK \
"if test -z \"${fdtfile}\" -a -n \"${soc}\"; then " \
"setenv efi_fdtfile ${soc}-${board}${boardver}.dtb; " \
"fi; "
#else
#define BOOTENV_EFI_SET_FDTFILE_FALLBACK
#endif
#define BOOTENV_SHARED_EFI \
"boot_efi_binary=" \
"load ${devtype} ${devnum}:${distro_bootpart} " \
"${kernel_addr_r} efi/boot/"BOOTEFI_NAME"; " \
"if fdt addr ${fdt_addr_r}; then " \
"bootefi ${kernel_addr_r} ${fdt_addr_r};" \
"else " \
"bootefi ${kernel_addr_r} ${fdtcontroladdr};" \
"fi\0" \
\
"load_efi_dtb=" \
"load ${devtype} ${devnum}:${distro_bootpart} " \
"${fdt_addr_r} ${prefix}${efi_fdtfile}\0" \
\
"efi_dtb_prefixes=/ /dtb/ /dtb/current/\0" \
"scan_dev_for_efi=" \
"setenv efi_fdtfile ${fdtfile}; " \
BOOTENV_EFI_SET_FDTFILE_FALLBACK \
"for prefix in ${efi_dtb_prefixes}; do " \
"if test -e ${devtype} " \
"${devnum}:${distro_bootpart} " \
"${prefix}${efi_fdtfile}; then " \
"run load_efi_dtb; " \
"fi;" \
"done;" \
"if test -e ${devtype} ${devnum}:${distro_bootpart} " \
"efi/boot/"BOOTEFI_NAME"; then " \
"echo Found EFI removable media binary " \
"efi/boot/"BOOTEFI_NAME"; " \
"run boot_efi_binary; " \
"echo EFI LOAD FAILED: continuing...; " \
"fi; " \
"setenv efi_fdtfile\0"
#define SCAN_DEV_FOR_EFI "run scan_dev_for_efi;"
#else
#define BOOTENV_SHARED_EFI
#define SCAN_DEV_FOR_EFI
#endif
#ifdef CONFIG_CMD_SATA
#define BOOTENV_SHARED_SATA BOOTENV_SHARED_BLKDEV(sata)
#define BOOTENV_DEV_SATA BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_SATA BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_SHARED_SATA
#define BOOTENV_DEV_SATA \
BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
#define BOOTENV_DEV_NAME_SATA \
BOOT_TARGET_DEVICES_references_SATA_without_CONFIG_CMD_SATA
#endif
#ifdef CONFIG_SCSI
#define BOOTENV_RUN_SCSI_INIT "run scsi_init; "
#define BOOTENV_SET_SCSI_NEED_INIT "setenv scsi_need_init; "
#define BOOTENV_SHARED_SCSI \
"scsi_init=" \
"if ${scsi_need_init}; then " \
"setenv scsi_need_init false; " \
"scsi scan; " \
"fi\0" \
\
"scsi_boot=" \
BOOTENV_RUN_SCSI_INIT \
BOOTENV_SHARED_BLKDEV_BODY(scsi)
#define BOOTENV_DEV_SCSI BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_SCSI BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_RUN_SCSI_INIT
#define BOOTENV_SET_SCSI_NEED_INIT
#define BOOTENV_SHARED_SCSI
#define BOOTENV_DEV_SCSI \
BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI
#define BOOTENV_DEV_NAME_SCSI \
BOOT_TARGET_DEVICES_references_SCSI_without_CONFIG_SCSI
#endif
#ifdef CONFIG_CMD_IDE
#define BOOTENV_SHARED_IDE BOOTENV_SHARED_BLKDEV(ide)
#define BOOTENV_DEV_IDE BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_IDE BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_SHARED_IDE
#define BOOTENV_DEV_IDE \
BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
#define BOOTENV_DEV_NAME_IDE \
BOOT_TARGET_DEVICES_references_IDE_without_CONFIG_CMD_IDE
#endif
#if defined(CONFIG_CMD_PCI_ENUM) || defined(CONFIG_DM_PCI)
#define BOOTENV_RUN_NET_PCI_ENUM "run boot_net_pci_enum; "
#define BOOTENV_SHARED_PCI \
"boot_net_pci_enum=pci enum\0"
#else
#define BOOTENV_RUN_NET_PCI_ENUM
#define BOOTENV_SHARED_PCI
#endif
#ifdef CONFIG_CMD_USB
#define BOOTENV_RUN_NET_USB_START "run boot_net_usb_start; "
#define BOOTENV_SHARED_USB \
"boot_net_usb_start=usb start\0" \
"usb_boot=" \
"usb start; " \
BOOTENV_SHARED_BLKDEV_BODY(usb)
#define BOOTENV_DEV_USB BOOTENV_DEV_BLKDEV
#define BOOTENV_DEV_NAME_USB BOOTENV_DEV_NAME_BLKDEV
#else
#define BOOTENV_RUN_NET_USB_START
#define BOOTENV_SHARED_USB
#define BOOTENV_DEV_USB \
BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
#define BOOTENV_DEV_NAME_USB \
BOOT_TARGET_DEVICES_references_USB_without_CONFIG_CMD_USB
#endif
#if defined(CONFIG_CMD_DHCP)
#if defined(CONFIG_EFI_LOADER)
#if defined(CONFIG_ARM64)
#define BOOTENV_EFI_PXE_ARCH "0xb"
#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00011:UNDI:003000"
#elif defined(CONFIG_ARM)
#define BOOTENV_EFI_PXE_ARCH "0xa"
#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00010:UNDI:003000"
#elif defined(CONFIG_X86)
/* Always assume we're running 64bit */
#define BOOTENV_EFI_PXE_ARCH "0x7"
#define BOOTENV_EFI_PXE_VCI "PXEClient:Arch:00007:UNDI:003000"
#else
#error Please specify an EFI client identifier
#endif
/*
* Ask the dhcp server for an EFI binary. If we get one, check for a
* device tree in the same folder. Then boot everything. If the file was
* not an EFI binary, we just return from the bootefi command and continue.
*/
#define BOOTENV_EFI_RUN_DHCP \
"setenv efi_fdtfile ${fdtfile}; " \
BOOTENV_EFI_SET_FDTFILE_FALLBACK \
"setenv efi_old_vci ${bootp_vci};" \
"setenv efi_old_arch ${bootp_arch};" \
"setenv bootp_vci " BOOTENV_EFI_PXE_VCI ";" \
"setenv bootp_arch " BOOTENV_EFI_PXE_ARCH ";" \
"if dhcp ${kernel_addr_r}; then " \
"tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};" \
"if fdt addr ${fdt_addr_r}; then " \
"bootefi ${kernel_addr_r} ${fdt_addr_r}; " \
"else " \
"bootefi ${kernel_addr_r} ${fdtcontroladdr};" \
"fi;" \
"fi;" \
"setenv bootp_vci ${efi_old_vci};" \
"setenv bootp_arch ${efi_old_arch};" \
"setenv efi_fdtfile;" \
"setenv efi_old_arch;" \
"setenv efi_old_vci;"
#else
#define BOOTENV_EFI_RUN_DHCP
#endif
#define BOOTENV_DEV_DHCP(devtypeu, devtypel, instance) \
"bootcmd_dhcp=" \
BOOTENV_RUN_NET_USB_START \
BOOTENV_RUN_NET_PCI_ENUM \
"if dhcp ${scriptaddr} ${boot_script_dhcp}; then " \
"source ${scriptaddr}; " \
"fi;" \
BOOTENV_EFI_RUN_DHCP \
"\0"
#define BOOTENV_DEV_NAME_DHCP(devtypeu, devtypel, instance) \
"dhcp "
#else
#define BOOTENV_DEV_DHCP \
BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
#define BOOTENV_DEV_NAME_DHCP \
BOOT_TARGET_DEVICES_references_DHCP_without_CONFIG_CMD_DHCP
#endif
#if defined(CONFIG_CMD_DHCP) && defined(CONFIG_CMD_PXE)
#define BOOTENV_DEV_PXE(devtypeu, devtypel, instance) \
"bootcmd_pxe=" \
BOOTENV_RUN_NET_USB_START \
BOOTENV_RUN_NET_PCI_ENUM \
"dhcp; " \
"if pxe get; then " \
"pxe boot; " \
"fi\0"
#define BOOTENV_DEV_NAME_PXE(devtypeu, devtypel, instance) \
"pxe "
#else
#define BOOTENV_DEV_PXE \
BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
#define BOOTENV_DEV_NAME_PXE \
BOOT_TARGET_DEVICES_references_PXE_without_CONFIG_CMD_DHCP_or_PXE
#endif
#define BOOTENV_DEV_NAME(devtypeu, devtypel, instance) \
BOOTENV_DEV_NAME_##devtypeu(devtypeu, devtypel, instance)
#define BOOTENV_BOOT_TARGETS \
"boot_targets=" BOOT_TARGET_DEVICES(BOOTENV_DEV_NAME) "\0"
#define BOOTENV_DEV(devtypeu, devtypel, instance) \
BOOTENV_DEV_##devtypeu(devtypeu, devtypel, instance)
#define BOOTENV \
BOOTENV_SHARED_HOST \
BOOTENV_SHARED_MMC \
BOOTENV_SHARED_PCI \
BOOTENV_SHARED_USB \
BOOTENV_SHARED_SATA \
BOOTENV_SHARED_SCSI \
BOOTENV_SHARED_IDE \
BOOTENV_SHARED_UBIFS \
BOOTENV_SHARED_EFI \
"boot_prefixes=/ /boot/\0" \
"boot_scripts=boot.scr.uimg boot.scr\0" \
"boot_script_dhcp=boot.scr.uimg\0" \
BOOTENV_BOOT_TARGETS \
\
"boot_extlinux=" \
"sysboot ${devtype} ${devnum}:${distro_bootpart} any " \
"${scriptaddr} ${prefix}extlinux/extlinux.conf\0" \
\
"scan_dev_for_extlinux=" \
"if test -e ${devtype} " \
"${devnum}:${distro_bootpart} " \
"${prefix}extlinux/extlinux.conf; then " \
"echo Found ${prefix}extlinux/extlinux.conf; " \
"run boot_extlinux; " \
"echo SCRIPT FAILED: continuing...; " \
"fi\0" \
\
"boot_a_script=" \
"load ${devtype} ${devnum}:${distro_bootpart} " \
"${scriptaddr} ${prefix}${script}; " \
"source ${scriptaddr}\0" \
\
"scan_dev_for_scripts=" \
"for script in ${boot_scripts}; do " \
"if test -e ${devtype} " \
"${devnum}:${distro_bootpart} " \
"${prefix}${script}; then " \
"echo Found U-Boot script " \
"${prefix}${script}; " \
"run boot_a_script; " \
"echo SCRIPT FAILED: continuing...; " \
"fi; " \
"done\0" \
\
"scan_dev_for_boot=" \
"echo Scanning ${devtype} " \
"${devnum}:${distro_bootpart}...; " \
"for prefix in ${boot_prefixes}; do " \
"run scan_dev_for_extlinux; " \
"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 */