aboutsummaryrefslogtreecommitdiff
path: root/common
diff options
context:
space:
mode:
Diffstat (limited to 'common')
-rw-r--r--common/fdt_support.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c
index ffc59fd..5e49078 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -1051,6 +1051,79 @@ void fdt_fixup_mtdparts(void *blob, const struct node_info *node_info,
}
#endif
+int fdt_copy_fixed_partitions(void *blob)
+{
+ ofnode node, subnode;
+ int off, suboff, res;
+ char path[256];
+ int address_cells, size_cells;
+ u8 i, j, child_count;
+
+ node = ofnode_by_compatible(ofnode_null(), "fixed-partitions");
+ while (ofnode_valid(node)) {
+ /* copy the U-Boot fixed partition */
+ address_cells = ofnode_read_simple_addr_cells(node);
+ size_cells = ofnode_read_simple_size_cells(node);
+
+ res = ofnode_get_path(ofnode_get_parent(node), path, sizeof(path));
+ if (res)
+ return res;
+
+ off = fdt_path_offset(blob, path);
+ if (off < 0)
+ return -ENODEV;
+
+ off = fdt_find_or_add_subnode(blob, off, "partitions");
+ res = fdt_setprop_string(blob, off, "compatible", "fixed-partitions");
+ if (res)
+ return res;
+
+ res = fdt_setprop_u32(blob, off, "#address-cells", address_cells);
+ if (res)
+ return res;
+
+ res = fdt_setprop_u32(blob, off, "#size-cells", size_cells);
+ if (res)
+ return res;
+
+ /*
+ * parse partition in reverse order as fdt_find_or_add_subnode() only
+ * insert the new node after the parent's properties
+ */
+ child_count = ofnode_get_child_count(node);
+ for (i = child_count; i > 0 ; i--) {
+ subnode = ofnode_first_subnode(node);
+ if (!ofnode_valid(subnode))
+ break;
+
+ for (j = 0; (j < i - 1); j++)
+ subnode = ofnode_next_subnode(subnode);
+
+ if (!ofnode_valid(subnode))
+ break;
+
+ const u32 *reg;
+ int len;
+
+ suboff = fdt_find_or_add_subnode(blob, off, ofnode_get_name(subnode));
+ res = fdt_setprop_string(blob, suboff, "label",
+ ofnode_read_string(subnode, "label"));
+ if (res)
+ return res;
+
+ reg = ofnode_get_property(subnode, "reg", &len);
+ res = fdt_setprop(blob, suboff, "reg", reg, len);
+ if (res)
+ return res;
+ }
+
+ /* go to next fixed-partitions node */
+ node = ofnode_by_compatible(node, "fixed-partitions");
+ }
+
+ return 0;
+}
+
void fdt_del_node_and_alias(void *blob, const char *alias)
{
int off = fdt_path_offset(blob, alias);