Marcelo Alcantara
d7906a4b1a
Ported from the asahi-quattro lane. Both are pinned by hand like linux-aurora and restricted to aarch64 and the edge channel from their first merge, since merging publishes. pkgrel sits one above the fork lanes' builds so the same filename never carries two sets of bytes.
88 lines
4.1 KiB
Diff
88 lines
4.1 KiB
Diff
From 4306c538d4a00dd1aa46c55c3c4005c2b0bf7cd5 Mon Sep 17 00:00:00 2001
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From: Peter Robinson <pbrobinson@gmail.com>
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Date: Thu, 24 Nov 2022 12:57:55 +0000
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Subject: [PATCH] distro: load FDT from any partition on boot device
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In the EFI_LOADER boot path, we were only checking the FAT partition
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containing the EFI payload for dtb files. But this is somewhat of a
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fiction. In reality there will be one small (V)FAT partition containing
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grub (or whatever the payload may be), and a second boot partition
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containing kernel/initrd/fdt (typically ext4). It is this second
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partition where we should be looking for a FDT to load.
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So instead scan all the partitions of the disk containing the EFI
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payload. This matches where grub looks for kernel/initrd (barring
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custom grub.cfg, in which case the user can use grub's 'devicetree'
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command to load the correct FDT).
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The other option is somehow passing the ${fdtfile} to grub so that it
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can load the FDT based on selected kernel version location (which grub
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knows) and SoC/board specific ${fdtfile} (which grub does not know).
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Signed-off-by: Rob Clark <robdclark@gmail.com>
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Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
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---
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include/config_distro_bootcmd.h | 37 +++++++++++++++++++++------------
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1 file changed, 24 insertions(+), 13 deletions(-)
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diff --git a/include/config_distro_bootcmd.h b/include/config_distro_bootcmd.h
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index fcb319a20ae..e71004fad9c 100644
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--- a/include/config_distro_bootcmd.h
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+++ b/include/config_distro_bootcmd.h
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@@ -155,28 +155,39 @@
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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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+ "load ${devtype} ${devnum}:${dtb_devp} " \
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+ "${fdt_addr_r} ${prefix}${efi_fdtfile} && " \
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+ "run boot_efi_binary\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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+ "scan_dev_for_dtb=" \
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"setenv efi_fdtfile ${fdtfile}; " \
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BOOTENV_EFI_SET_FDTFILE_FALLBACK \
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BOOTENV_RUN_EXTENSION_INIT \
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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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- BOOTENV_RUN_EXTENSION_APPLY \
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- "fi;" \
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- "done;" \
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- "run boot_efi_bootmgr;" \
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+ "part list ${devtype} ${devnum} dtb_devplist; " \
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+ "env exists dtb_devplist || setenv dtb_devplist " \
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+ "${distro_bootpart}; " \
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+ "for dtb_devp in ${dtb_devplist}; do " \
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+ "for prefix in ${efi_dtb_prefixes}; do " \
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+ "if test -e ${devtype} " \
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+ "${devnum}:${dtb_devp} " \
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+ "${prefix}${efi_fdtfile};"\
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+ " then " \
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+ "echo Found DTB ${devtype} " \
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+ "${devnum}:${dtb_devp} " \
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+ "${prefix}${efi_fdtfile};"\
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+ "run load_efi_dtb; " \
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+ BOOTENV_RUN_EXTENSION_APPLY \
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+ "fi;" \
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+ "done; " \
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+ "done; " \
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+ "run boot_efi_binary\0" \
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+ "scan_dev_for_efi=" \
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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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+ "run scan_dev_for_dtb; " \
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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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--
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2.38.1
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