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bootstd: Replicate the dtb-filename quirks of distroboot

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For EFI, the distro boot scripts search in three different directories
for the .dtb file. The SOC-based filename fallback is supported only for
32-bit ARM.

Adjust the code to mirror this behaviour.

Also some boards can use a prior-stage FDT if one is not found in the
normal way. Support this and show a message in that case.

Signed-off-by: Simon Glass <sjg@chromium.org>
Suggested-by: Mark Kettenis <kettenis@openbsd.org>
This commit is contained in:
Simon Glass 2023-02-22 12:17:04 -07:00
parent 4f806f31fc
commit 47dd6b4d7d
3 changed files with 78 additions and 9 deletions
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3
boot/bootflow.c
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@ -467,6 +467,9 @@ int bootflow_run_boot(struct bootflow_iter *iter, struct bootflow *bflow)
printf("** Booting bootflow '%s' with %s\n", bflow->name,
bflow->method->name);
if (IS_ENABLED(CONFIG_OF_HAS_PRIOR_STAGE) &&
(bflow->flags & BOOTFLOWF_USE_PRIOR_FDT))
printf("Using prior-stage device tree\n");
ret = bootflow_boot(bflow);
if (!IS_ENABLED(CONFIG_BOOTSTD_FULL)) {
printf("Boot failed (err=%d)\n", ret);