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Diffstat (limited to 'lib_ppc')
-rw-r--r--lib_ppc/bootm.c178
1 files changed, 131 insertions, 47 deletions
diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c
index d2ee3dc..a1bbfc6 100644
--- a/lib_ppc/bootm.c
+++ b/lib_ppc/bootm.c
@@ -43,7 +43,7 @@
static void fdt_error (const char *msg);
static ulong get_fdt (ulong alloc_current, cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
- image_header_t *hdr, char **of_flat_tree);
+ bootm_headers_t *images, char **of_flat_tree);
#endif
#ifdef CFG_INIT_RAM_LOCK
@@ -59,7 +59,7 @@ static void set_clocks_in_mhz (bd_t *kbd);
void __attribute__((noinline))
do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
- image_header_t *hdr,
+ bootm_headers_t *images,
int verify)
{
ulong sp, sp_limit, alloc_current;
@@ -69,6 +69,7 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
ulong cmd_start, cmd_end;
bd_t *kbd;
+ ulong ep = 0;
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
#if defined(CONFIG_OF_LIBFDT)
@@ -97,11 +98,22 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
alloc_current = get_boot_kbd (alloc_current, &kbd);
set_clocks_in_mhz(kbd);
- /* find kernel */
- kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))image_get_ep (hdr);
+ /* find kernel entry point */
+ if (images->legacy_hdr_valid) {
+ ep = image_get_ep (images->legacy_hdr_os);
+#if defined(CONFIG_FIT)
+ } else if (images->fit_uname_os) {
+ fit_unsupported_reset ("PPC linux bootm");
+ do_reset (cmdtp, flag, argc, argv);
+#endif
+ } else {
+ puts ("Could not find kernel entry point!\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
+ kernel = (void (*)(bd_t *, ulong, ulong, ulong, ulong))ep;
/* find ramdisk */
- get_ramdisk (cmdtp, flag, argc, argv, hdr, verify,
+ get_ramdisk (cmdtp, flag, argc, argv, images, verify,
IH_ARCH_PPC, &rd_data_start, &rd_data_end);
rd_len = rd_data_end - rd_data_start;
@@ -113,7 +125,7 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
#if defined(CONFIG_OF_LIBFDT)
/* find flattened device tree */
alloc_current = get_fdt (alloc_current,
- cmdtp, flag, argc, argv, hdr, &of_flat_tree);
+ cmdtp, flag, argc, argv, images, &of_flat_tree);
/*
* Add the chosen node if it doesn't exist, add the env and bd_t
@@ -225,33 +237,69 @@ static void fdt_error (const char *msg)
static ulong get_fdt (ulong alloc_current,
cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
- image_header_t *hdr, char **of_flat_tree)
+ bootm_headers_t *images, char **of_flat_tree)
{
+ ulong fdt_addr;
image_header_t *fdt_hdr;
+ char *fdt_blob = NULL;
ulong fdt_relocate = 0;
- char *fdt = NULL;
ulong new_alloc_current;
+ ulong image_start, image_end;
+ ulong load_start, load_end;
+#if defined(CONFIG_FIT)
+ void *fit_hdr;
+ const char *fit_uname_config = NULL;
+ const char *fit_uname_fdt = NULL;
+ ulong default_addr;
+#endif
- if(argc > 3) {
- fdt = (char *)simple_strtoul (argv[3], NULL, 16);
+ if (argc > 3) {
+#if defined(CONFIG_FIT)
+ /*
+ * If the FDT blob comes from the FIT image and the FIT image
+ * address is omitted in the command line argument, try to use
+ * ramdisk or os FIT image address or default load address.
+ */
+ if (images->fit_uname_rd)
+ default_addr = (ulong)images->fit_hdr_rd;
+ else if (images->fit_uname_os)
+ default_addr = (ulong)images->fit_hdr_os;
+ else
+ default_addr = load_addr;
+
+ if (fit_parse_conf (argv[3], default_addr,
+ &fdt_addr, &fit_uname_config)) {
+ debug ("* fdt: config '%s' from image at 0x%08lx\n",
+ fit_uname_config, fdt_addr);
+ } else if (fit_parse_subimage (argv[3], default_addr,
+ &fdt_addr, &fit_uname_fdt)) {
+ debug ("* fdt: subimage '%s' from image at 0x%08lx\n",
+ fit_uname_fdt, fdt_addr);
+ } else
+#endif
+ {
+ fdt_addr = simple_strtoul(argv[3], NULL, 16);
+ debug ("* fdt: cmdline image address = 0x%08lx\n",
+ fdt_addr);
+ }
- debug ("## Checking for 'FDT'/'FDT image' at %08lx\n", fdt);
+ debug ("## Checking for 'FDT'/'FDT image' at %08lx\n",
+ fdt_addr);
/* copy from dataflash if needed */
- fdt = (char *)gen_get_image ((ulong)fdt);
- fdt_hdr = (image_header_t *)fdt;
+ fdt_addr = gen_get_image (fdt_addr);
- if (fdt_check_header (fdt) == 0) {
- printf ("## Flattened Device Tree blob at %08lx\n", fdt);
-#ifndef CFG_NO_FLASH
- if (addr2info ((ulong)fdt) != NULL)
- fdt_relocate = 1;
-#endif
- } else if (image_check_magic (fdt_hdr)) {
- ulong image_start, image_end;
- ulong load_start, load_end;
+ /*
+ * Check if there is an FDT image at the
+ * address provided in the second bootm argument
+ * check image type, for FIT images get a FIT node.
+ */
+ switch (gen_image_get_format ((void *)fdt_addr)) {
+ case IMAGE_FORMAT_LEGACY:
+ debug ("* fdt: legacy format image\n");
- printf ("## Flattened Device Tree Image at %08lx\n",
+ fdt_hdr = (image_header_t *)fdt_addr;
+ printf ("## Flattened Device Tree Legacy Image at %08lx\n",
fdt_hdr);
image_print_contents (fdt_hdr);
@@ -296,51 +344,87 @@ static ulong get_fdt (ulong alloc_current,
(void *)image_get_data (fdt_hdr),
image_get_data_size (fdt_hdr));
- fdt = (char *)image_get_load (fdt_hdr);
- } else {
- fdt_error ("Did not find a Flattened Device Tree");
+ fdt_blob = (char *)image_get_load (fdt_hdr);
+ break;
+#if defined(CONFIG_FIT)
+ case IMAGE_FORMAT_FIT:
+
+ /* check FDT blob vs FIT hdr */
+ if (fit_uname_config || fit_uname_fdt) {
+ /*
+ * FIT image
+ */
+ fit_hdr = (void *)fdt_addr;
+ debug ("* fdt: FIT format image\n");
+ fit_unsupported_reset ("PPC fdt");
+ do_reset (cmdtp, flag, argc, argv);
+ } else {
+ /*
+ * FDT blob
+ */
+ printf ("## Flattened Device Tree blob at %08lx\n", fdt_blob);
+ fdt_blob = (char *)fdt_addr;
+ }
+ break;
+#endif
+ default:
+ fdt_error ("Did not find a cmdline Flattened Device Tree");
do_reset (cmdtp, flag, argc, argv);
}
- printf (" Booting using the fdt at 0x%x\n",
- fdt);
- } else if (image_check_type (hdr, IH_TYPE_MULTI)) {
+
+ printf (" Booting using the fdt blob at 0x%x\n", fdt_blob);
+
+ } else if (images->legacy_hdr_valid &&
+ image_check_type (images->legacy_hdr_os, IH_TYPE_MULTI)) {
+
ulong fdt_data, fdt_len;
+ /*
+ * Now check if we have a legacy multi-component image,
+ * get second entry data start address and len.
+ */
printf ("## Flattened Device Tree from multi "
- "component Image at %08lX\n", (ulong)hdr);
+ "component Image at %08lX\n",
+ (ulong)images->legacy_hdr_os);
- image_multi_getimg (hdr, 2, &fdt_data, &fdt_len);
+ image_multi_getimg (images->legacy_hdr_os, 2, &fdt_data, &fdt_len);
if (fdt_len) {
- fdt = (char *)fdt_data;
- printf (" Booting using the fdt at 0x%x\n", fdt);
+ fdt_blob = (char *)fdt_data;
+ printf (" Booting using the fdt at 0x%x\n", fdt_blob);
-#ifndef CFG_NO_FLASH
- /* move the blob if it is in flash (set of_relocte) */
- if (addr2info ((ulong)fdt) != NULL)
- fdt_relocate = 1;
-#endif
-
- if (fdt_check_header (fdt) != 0) {
+ if (fdt_check_header (fdt_blob) != 0) {
fdt_error ("image is not a fdt");
do_reset (cmdtp, flag, argc, argv);
}
- if (be32_to_cpu (fdt_totalsize (fdt)) != fdt_len) {
+ if (be32_to_cpu (fdt_totalsize (fdt_blob)) != fdt_len) {
fdt_error ("fdt size != image size");
do_reset (cmdtp, flag, argc, argv);
}
} else {
- debug (" Did not find a Flattened Device Tree");
+ fdt_error ("Did not find a Flattened Device Tree "
+ "in a legacy multi-component image");
+ do_reset (cmdtp, flag, argc, argv);
}
+ } else {
+ debug ("## No Flattened Device Tree\n");
+ *of_flat_tree = NULL;
+ return alloc_current;
}
+#ifndef CFG_NO_FLASH
+ /* move the blob if it is in flash (set fdt_relocate) */
+ if (addr2info ((ulong)fdt_blob) != NULL)
+ fdt_relocate = 1;
+#endif
+
#ifdef CFG_BOOTMAPSZ
/*
* The blob must be within CFG_BOOTMAPSZ,
* so we flag it to be copied if it is not.
*/
- if (fdt >= (char *)CFG_BOOTMAPSZ)
+ if (fdt_blob >= (char *)CFG_BOOTMAPSZ)
fdt_relocate = 1;
#endif
@@ -349,20 +433,20 @@ static ulong get_fdt (ulong alloc_current,
int err;
ulong of_start, of_len;
- of_len = be32_to_cpu (fdt_totalsize (fdt));
+ of_len = be32_to_cpu (fdt_totalsize (fdt_blob));
/* position on a 4K boundary before the alloc_current */
of_start = alloc_current - of_len;
of_start &= ~(4096 - 1); /* align on page */
debug ("## device tree at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
- (ulong)fdt, (ulong)fdt + of_len - 1,
+ (ulong)fdt_blob, (ulong)fdt_blob + of_len - 1,
of_len, of_len);
printf (" Loading Device Tree to %08lx, end %08lx ... ",
of_start, of_start + of_len - 1);
- err = fdt_open_into (fdt, (void *)of_start, of_len);
+ err = fdt_open_into (fdt_blob, (void *)of_start, of_len);
if (err != 0) {
fdt_error ("fdt move failed");
do_reset (cmdtp, flag, argc, argv);
@@ -372,7 +456,7 @@ static ulong get_fdt (ulong alloc_current,
*of_flat_tree = (char *)of_start;
new_alloc_current = of_start;
} else {
- *of_flat_tree = fdt;
+ *of_flat_tree = fdt_blob;
new_alloc_current = alloc_current;
}
generated by cgit v1.1 at 2024-11-26 01:07:36 +0000