+ /* move of_flat_tree if needed */
+ if (of_data) {
+ int err;
+ ulong of_start, of_len;
+
+ of_len = be32_to_cpu(fdt_totalsize(of_data));
+
+ /* position on a 4K boundary before the kbd */
+ of_start = (ulong)kbd - of_len;
+ of_start &= ~(4096 - 1); /* align on page */
+ debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
+ of_data, of_data + of_len - 1, of_len, of_len);
+
+ of_flat_tree = (char *)of_start;
+ printf (" Loading Device Tree to %08lx, end %08lx ... ",
+ of_start, of_start + of_len - 1);
+ err = fdt_open_into((void *)of_data, (void *)of_start, of_len);
+ if (err != 0) {
+ puts ("ERROR: fdt move failed - "
+ "must RESET the board to recover.\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
+ puts ("OK\n");
+ }
+ /*
+ * Add the chosen node if it doesn't exist, add the env and bd_t
+ * if the user wants it (the logic is in the subroutines).
+ */
+ if (of_flat_tree) {
+ if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
+ puts ("ERROR: /chosen node create failed - "
+ "must RESET the board to recover.\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
+#ifdef CONFIG_OF_HAS_UBOOT_ENV
+ if (fdt_env(of_flat_tree) < 0) {
+ puts ("ERROR: /u-boot-env node create failed - "
+ "must RESET the board to recover.\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
+#endif
+#ifdef CONFIG_OF_HAS_BD_T
+ if (fdt_bd_t(of_flat_tree) < 0) {
+ puts ("ERROR: /bd_t node create failed - "
+ "must RESET the board to recover.\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
+#endif
+#ifdef CONFIG_OF_BOARD_SETUP
+ /* Call the board-specific fixup routine */
+ ft_board_setup(of_flat_tree, gd->bd);
+#endif
+ }
+#endif /* CONFIG_OF_LIBFDT */
+#if defined(CONFIG_OF_FLAT_TREE)
+#ifdef CFG_BOOTMAPSZ
+ /*
+ * The blob must be within CFG_BOOTMAPSZ,
+ * so we flag it to be copied if it is not.
+ */
+ if (of_flat_tree >= (char *)CFG_BOOTMAPSZ)
+ of_data = (ulong)of_flat_tree;