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authorGerald Van Baren <vanbaren@cideas.com>2007-04-14 22:51:24 -0400
committerGerald Van Baren <vanbaren@cideas.com>2007-04-14 22:51:24 -0400
commitc28abb9c614f65ce2096cc4a66fc886c77d0e5a4 (patch)
treee5ac701063ae2b80e27e7a49c6d9cf2dc44e8f0c /common/cmd_bootm.c
parent3f9f08cf91c8a6949a5d78a18bd3d8df7b86d888 (diff)
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Improve the bootm command for CONFIG_OF_LIBFDT
In bootm, create the "/chosen" node only if it doesn't already exist (better matches the previous behavior). Update for proper reserved memory map handling for initrd.
Diffstat (limited to 'common/cmd_bootm.c')
-rw-r--r--common/cmd_bootm.c56
1 files changed, 48 insertions, 8 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index 3eeb03c..32c29e5 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -37,6 +37,7 @@
#if defined(CONFIG_OF_LIBFDT)
#include <fdt.h>
#include <libfdt.h>
+#include <fdt_support.h>
#endif
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
@@ -748,7 +749,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
hdr = (image_header_t *)of_flat_tree;
#if defined(CONFIG_OF_LIBFDT)
- if (be32_to_cpu(fdt_magic(of_flat_tree)) == FDT_MAGIC) {
+ if (fdt_check_header(of_flat_tree) == 0) {
#else
if (*(ulong *)of_flat_tree == OF_DT_HEADER) {
#endif
@@ -795,7 +796,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
return;
}
#if defined(CONFIG_OF_LIBFDT)
- if (be32_to_cpu(fdt_magic(of_flat_tree + sizeof(image_header_t))) != FDT_MAGIC) {
+ if (fdt_check_header(of_flat_tree + sizeof(image_header_t)) == 0) {
#else
if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
#endif
@@ -836,7 +837,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
}
#if defined(CONFIG_OF_LIBFDT)
- if (be32_to_cpu(fdt_magic(of_data)) != FDT_MAGIC) {
+ if (fdt_check_header((void *)of_data) != 0) {
#else
if (((struct boot_param_header *)of_data)->magic != OF_DT_HEADER) {
#endif
@@ -937,23 +938,44 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
if (of_data) {
int err;
ulong of_start, of_len;
+
of_len = be32_to_cpu(fdt_totalsize(of_data));
- /* provide extra 8k pad */
+ /* position on a 4K boundary before the initrd/kbd */
if (initrd_start)
- of_start = initrd_start - of_len - 8192;
+ of_start = initrd_start - of_len;
else
- of_start = (ulong)kbd - of_len - 8192;
+ 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_start, (void *)of_data, of_len);
if (err != 0) {
- printf ("libfdt: %s\n", fdt_strerror(err));
+ printf ("libfdt: %s " __FILE__ " %d\n", fdt_strerror(err), __LINE__);
}
+ /*
+ * 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 (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
+ printf("Failed creating the /chosen node (0x%08X), aborting.\n", of_flat_tree);
+ return;
+ }
+#ifdef CONFIG_OF_HAS_UBOOT_ENV
+ if (fdt_env(of_flat_tree) < 0) {
+ printf("Failed creating the /u-boot-env node, aborting.\n");
+ return;
+ }
+#endif
+#ifdef CONFIG_OF_HAS_BD_T
+ if (fdt_bd_t(of_flat_tree) < 0) {
+ printf("Failed creating the /bd_t node, aborting.\n");
+ return;
+ }
+#endif
}
#endif
#if defined(CONFIG_OF_FLAT_TREE)
@@ -1004,6 +1026,24 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
/* ft_dump_blob(of_flat_tree); */
#endif
+#if defined(CONFIG_OF_LIBFDT)
+ if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) {
+ printf("Failed creating the /chosen node (0x%08X), aborting.\n", of_flat_tree);
+ return;
+ }
+#ifdef CONFIG_OF_HAS_UBOOT_ENV
+ if (fdt_env(of_flat_tree) < 0) {
+ printf("Failed creating the /u-boot-env node, aborting.\n");
+ return;
+ }
+#endif
+#ifdef CONFIG_OF_HAS_BD_T
+ if (fdt_bd_t(of_flat_tree) < 0) {
+ printf("Failed creating the /bd_t node, aborting.\n");
+ return;
+ }
+#endif
+#endif /* if defined(CONFIG_OF_LIBFDT) */
(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
#endif