* compatible list, "foo,bar", matches a compatible string in the root of fdt1.
* "bim,bam" in fdt2 matches the second string which isn't as good as fdt1.
*
+ * As an optimization, the compatible property from the FDT's root node can be
+ * 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
for (noffset = fdt_next_node(fit, confs_noffset, &ndepth);
(noffset >= 0) && (ndepth > 0);
noffset = fdt_next_node(fit, noffset, &ndepth)) {
- const void *kfdt;
+ const void *fdt;
const char *kfdt_name;
- int kfdt_noffset;
+ int kfdt_noffset, compat_noffset;
const char *cur_fdt_compat;
int len;
- size_t size;
+ size_t sz;
int i;
if (ndepth > 1)
continue;
- kfdt_name = fdt_getprop(fit, noffset, "fdt", &len);
- if (!kfdt_name) {
- debug("No fdt property found.\n");
- continue;
- }
- kfdt_noffset = fdt_subnode_offset(fit, images_noffset,
- kfdt_name);
- if (kfdt_noffset < 0) {
- debug("No image node named \"%s\" found.\n",
- kfdt_name);
- continue;
- }
+ /* If there's a compat property in the config node, use that. */
+ if (fdt_getprop(fit, noffset, "compatible", NULL)) {
+ fdt = fit; /* search in FIT image */
+ compat_noffset = noffset; /* search under config node */
+ } else { /* Otherwise extract it from the kernel FDT. */
+ kfdt_name = fdt_getprop(fit, noffset, "fdt", &len);
+ if (!kfdt_name) {
+ debug("No fdt property found.\n");
+ continue;
+ }
+ kfdt_noffset = fdt_subnode_offset(fit, images_noffset,
+ kfdt_name);
+ if (kfdt_noffset < 0) {
+ debug("No image node named \"%s\" found.\n",
+ kfdt_name);
+ continue;
+ }
- if (!fit_image_check_comp(fit, kfdt_noffset, IH_COMP_NONE)) {
- debug("Can't extract compat from \"%s\" (compressed)\n",
- kfdt_name);
- continue;
- }
+ if (!fit_image_check_comp(fit, kfdt_noffset,
+ IH_COMP_NONE)) {
+ debug("Can't extract compat from \"%s\" "
+ "(compressed)\n", kfdt_name);
+ continue;
+ }
- /*
- * Get a pointer to this configuration's fdt.
- */
- if (fit_image_get_data(fit, kfdt_noffset, &kfdt, &size)) {
- debug("Failed to get fdt \"%s\".\n", kfdt_name);
- continue;
+ /* search in this config's kernel FDT */
+ if (fit_image_get_data(fit, kfdt_noffset, &fdt, &sz)) {
+ debug("Failed to get fdt \"%s\".\n", kfdt_name);
+ continue;
+ }
+
+ compat_noffset = 0; /* search kFDT under root node */
}
len = fdt_compat_len;
cur_fdt_compat = fdt_compat;
/*
* Look for a match for each U-Boot compatibility string in
- * turn in this configuration's fdt.
+ * turn in the compat string property.
*/
for (i = 0; len > 0 &&
(!best_match_offset || best_match_pos > i); i++) {
int cur_len = strlen(cur_fdt_compat) + 1;
- if (!fdt_node_check_compatible(kfdt, 0,
+ if (!fdt_node_check_compatible(fdt, compat_noffset,
cur_fdt_compat)) {
best_match_offset = noffset;
best_match_pos = i;
comp = IH_COMP_NONE;
loadbuf = buf;
/* Kernel images get decompressed later in bootm_load_os(). */
- if (!(image_type == IH_TYPE_KERNEL ||
- image_type == IH_TYPE_KERNEL_NOLOAD) &&
- !fit_image_get_comp(fit, noffset, &comp) &&
- comp != IH_COMP_NONE) {
+ if (!fit_image_get_comp(fit, noffset, &comp) &&
+ comp != IH_COMP_NONE &&
+ !(image_type == IH_TYPE_KERNEL ||
+ image_type == IH_TYPE_KERNEL_NOLOAD ||
+ image_type == IH_TYPE_RAMDISK)) {
ulong max_decomp_len = len * 20;
if (load == data) {
loadbuf = malloc(max_decomp_len);
memcpy(loadbuf, buf, len);
}
+ if (image_type == IH_TYPE_RAMDISK && comp != IH_COMP_NONE)
+ puts("WARNING: 'compression' nodes for ramdisks are deprecated,"
+ " please fix your .its file!\n");
+
/* verify that image data is a proper FDT blob */
if (image_type == IH_TYPE_FLATDT && fdt_check_header(loadbuf)) {
puts("Subimage data is not a FDT");