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authorKumar Gala <galak@kernel.crashing.org>2008-02-27 21:51:45 -0600
committerMarian Balakowicz <m8@semihalf.com>2008-02-29 12:30:14 +0100
commitd2bc095a639672def11d5d043b5688d0dbd692ec (patch)
treeae988a46d63f0960325d0deede07134370cacf3c /lib_ppc
parent27953493ef025fb698d68c5dee39b36f01f4d530 (diff)
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[new uImage] ppc: Re-order ramdisk/fdt handling sequence
Doing the fdt before the ramdisk allows us to grow the fdt w/o concern however it does mean we have to go in and fixup the initrd info since we don't know where it will be. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'lib_ppc')
-rw-r--r--lib_ppc/bootm.c39
1 files changed, 35 insertions, 4 deletions
diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c
index 3e89da1..de6995e 100644
--- a/lib_ppc/bootm.c
+++ b/lib_ppc/bootm.c
@@ -71,6 +71,7 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
bd_t *kbd;
ulong ep = 0;
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
+ int ret;
ulong of_size = 0;
#if defined(CONFIG_OF_LIBFDT)
@@ -126,9 +127,6 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
rd_len = rd_data_end - rd_data_start;
- alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len,
- sp_limit, get_sp (), &initrd_start, &initrd_end);
-
#if defined(CONFIG_OF_LIBFDT)
alloc_current = fdt_relocate (alloc_current,
cmdtp, flag, argc, argv, &of_flat_tree, &of_size);
@@ -138,7 +136,8 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
* if the user wants it (the logic is in the subroutines).
*/
if (of_size) {
- if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
+ /* pass in dummy initrd info, we'll fix up later */
+ if (fdt_chosen(of_flat_tree, rd_data_start, rd_data_end, 0) < 0) {
fdt_error ("/chosen node create failed");
do_reset (cmdtp, flag, argc, argv);
}
@@ -161,6 +160,38 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
}
#endif /* CONFIG_OF_LIBFDT */
+ alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len,
+ sp_limit, get_sp (), &initrd_start, &initrd_end);
+
+#if defined(CONFIG_OF_LIBFDT)
+ /* fixup the initrd now that we know where it should be */
+ if ((of_flat_tree) && (initrd_start && initrd_end)) {
+ uint64_t addr, size;
+ int total = fdt_num_mem_rsv(of_flat_tree);
+ int j;
+
+ /* Look for the dummy entry and delete it */
+ for (j = 0; j < total; j++) {
+ fdt_get_mem_rsv(of_flat_tree, j, &addr, &size);
+ if (addr == rd_data_start) {
+ fdt_del_mem_rsv(of_flat_tree, j);
+ break;
+ }
+ }
+
+ ret = fdt_add_mem_rsv(of_flat_tree, initrd_start,
+ initrd_end - initrd_start + 1);
+ if (ret < 0) {
+ printf("fdt_chosen: %s\n", fdt_strerror(ret));
+ do_reset (cmdtp, flag, argc, argv);
+ }
+
+ do_fixup_by_path_u32(of_flat_tree, "/chosen",
+ "linux,initrd-start", initrd_start, 0);
+ do_fixup_by_path_u32(of_flat_tree, "/chosen",
+ "linux,initrd-end", initrd_end, 0);
+ }
+#endif
debug ("## Transferring control to Linux (at address %08lx) ...\n",
(ulong)kernel);