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boot: Allow FIT to fall back from best-match option

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When the best-match feature fails to find something, use the provided
config name as a fallback. The allows SPL to select a suitable config
when best-match is enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2024-12-07 10:23:56 -07:00
committed by Tom Rini
parent 3344767d32
commit 94ad46e2ae
2 changed files with 13 additions and 10 deletions
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19
boot/image-fit.c
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@@ -1729,13 +1729,13 @@ int fit_conf_find_compat(const void *fit, const void *fdt)
images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH);
if (confs_noffset < 0 || images_noffset < 0) {
debug("Can't find configurations or images nodes.\n");
return -1;
return -EINVAL;
}
fdt_compat = fdt_getprop(fdt, 0, "compatible", &fdt_compat_len);
if (!fdt_compat) {
debug("Fdt for comparison has no \"compatible\" property.\n");
return -1;
return -ENXIO;
}
/*
@@ -1812,7 +1812,7 @@ int fit_conf_find_compat(const void *fit, const void *fdt)
}
if (!best_match_offset) {
debug("No match found.\n");
return -1;
return -ENOENT;
}
return best_match_offset;
@@ -2095,17 +2095,18 @@ int fit_image_load(struct bootm_headers *images, ulong addr,
* fit_conf_get_node() will try to find default config node
*/
bootstage_mark(bootstage_id + BOOTSTAGE_SUB_NO_UNIT_NAME);
if (IS_ENABLED(CONFIG_FIT_BEST_MATCH) && !fit_uname_config) {
cfg_noffset = fit_conf_find_compat(fit, gd_fdt_blob());
} else {
cfg_noffset = fit_conf_get_node(fit, fit_uname_config);
}
if (cfg_noffset < 0) {
ret = -ENXIO;
if (IS_ENABLED(CONFIG_FIT_BEST_MATCH) && !fit_uname_config)
ret = fit_conf_find_compat(fit, gd_fdt_blob());
if (ret < 0 && ret != -EINVAL)
ret = fit_conf_get_node(fit, fit_uname_config);
if (ret < 0) {
puts("Could not find configuration node\n");
bootstage_error(bootstage_id +
BOOTSTAGE_SUB_NO_UNIT_NAME);
return -ENOENT;
}
cfg_noffset = ret;
fit_base_uname_config = fdt_get_name(fit, cfg_noffset, NULL);
printf(" Using '%s' configuration\n", fit_base_uname_config);

4
include/image.h
View File

@@ -1411,7 +1411,9 @@ int fit_check_format(const void *fit, ulong size);
* copied into the configuration node in the FIT image. This is required to
* match configurations with compressed FDTs.
*
* Returns: offset to the configuration to use if one was found, -1 otherwise
* Returns: offset to the configuration to use if one was found, -EINVAL if
* there a /configurations or /images node is missing, -ENOENT if no match was
* found, -ENXIO if the FDT node has no compatible string
*/
int fit_conf_find_compat(const void *fit, const void *fdt);