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Diffstat (limited to 'lib_ppc/ppc_linux.c')
-rw-r--r--lib_ppc/ppc_linux.c177
1 files changed, 73 insertions, 104 deletions
diff --git a/lib_ppc/ppc_linux.c b/lib_ppc/ppc_linux.c
index 6e2afed..0a625fc 100644
--- a/lib_ppc/ppc_linux.c
+++ b/lib_ppc/ppc_linux.c
@@ -50,9 +50,7 @@
#endif
DECLARE_GLOBAL_DATA_PTR;
-extern image_header_t header;
-/*cmd_boot.c*/
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
#if defined(CONFIG_CMD_BDI)
@@ -60,25 +58,27 @@ extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
#endif
void __attribute__((noinline))
-do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
+do_bootm_linux(cmd_tbl_t *cmdtp, int flag,
int argc, char *argv[],
- ulong addr,
- ulong *len_ptr,
+ image_header_t *hdr,
int verify)
{
- ulong sp;
- ulong len;
- ulong initrd_start, initrd_end;
- ulong cmd_start, cmd_end;
ulong initrd_high;
- ulong data;
int initrd_copy_to_ram = 1;
+ ulong initrd_start, initrd_end;
+ ulong rd_data, rd_len;
+ image_header_t *rd_hdr;
+
+ ulong cmd_start, cmd_end;
char *cmdline;
+
+ ulong sp;
char *s;
bd_t *kbd;
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
- image_header_t *hdr = &header;
+
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
+ image_header_t *fdt_hdr;
char *of_flat_tree = NULL;
ulong of_data = 0;
#endif
@@ -177,7 +177,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
/* Look for a '-' which indicates to ignore the ramdisk argument */
if (argc >= 3 && strcmp(argv[2], "-") == 0) {
debug ("Skipping initrd\n");
- len = data = 0;
+ rd_len = rd_data = 0;
}
else
#endif
@@ -185,30 +185,28 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
debug ("Not skipping initrd\n");
show_boot_progress (9);
- addr = simple_strtoul(argv[2], NULL, 16);
+ rd_hdr = (image_header_t *)simple_strtoul (argv[2], NULL, 16);
+ printf ("## Loading RAMDisk Image at %08lx ...\n", (ulong)rd_hdr);
- printf ("## Loading RAMDisk Image at %08lx ...\n", addr);
- hdr = (image_header_t *)addr;
-
- if (!image_check_magic (hdr)) {
+ if (!image_check_magic (rd_hdr)) {
puts ("Bad Magic Number\n");
show_boot_progress (-10);
do_reset (cmdtp, flag, argc, argv);
}
- if (!image_check_hcrc (hdr)) {
+ if (!image_check_hcrc (rd_hdr)) {
puts ("Bad Header Checksum\n");
show_boot_progress (-11);
do_reset (cmdtp, flag, argc, argv);
}
show_boot_progress (10);
- print_image_hdr (hdr);
+ print_image_hdr (rd_hdr);
if (verify) {
puts (" Verifying Checksum ... ");
- if (!image_check_dcrc_wd (hdr, CHUNKSZ)) {
+ if (!image_check_dcrc_wd (rd_hdr, CHUNKSZ)) {
puts ("Bad Data CRC\n");
show_boot_progress (-12);
do_reset (cmdtp, flag, argc, argv);
@@ -218,52 +216,39 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
show_boot_progress (11);
- if (!image_check_os (hdr, IH_OS_LINUX) ||
- !image_check_arch (hdr, IH_ARCH_PPC) ||
- !image_check_type (hdr, IH_TYPE_RAMDISK)) {
+ if (!image_check_os (rd_hdr, IH_OS_LINUX) ||
+ !image_check_arch (rd_hdr, IH_ARCH_PPC) ||
+ !image_check_type (rd_hdr, IH_TYPE_RAMDISK)) {
puts ("No Linux PPC Ramdisk Image\n");
show_boot_progress (-13);
do_reset (cmdtp, flag, argc, argv);
}
- data = image_get_data (hdr);
- len = image_get_data_size (hdr);
+ rd_data = image_get_data (rd_hdr);
+ rd_len = image_get_data_size (rd_hdr);
/*
* Now check if we have a multifile image
*/
- } else if (image_check_type (hdr, IH_TYPE_MULTI) && (len_ptr[1])) {
- u_long tail = image_to_cpu (len_ptr[0]) % 4;
- int i;
-
+ } else if (image_check_type (hdr, IH_TYPE_MULTI)) {
+ /*
+ * Get second entry data start address and len
+ */
+ image_multi_getimg (hdr, 1, &rd_data, &rd_len);
show_boot_progress (13);
-
- /* skip kernel length and terminator */
- data = (ulong)(&len_ptr[2]);
- /* skip any additional image length fields */
- for (i=1; len_ptr[i]; ++i)
- data += 4;
- /* add kernel length, and align */
- data += image_to_cpu (len_ptr[0]);
- if (tail) {
- data += 4 - tail;
- }
-
- len = image_to_cpu (len_ptr[1]);
-
} else {
/*
- * no initrd image
+ * No initrd image
*/
show_boot_progress (14);
- len = data = 0;
+ rd_len = rd_data = 0;
}
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT)
if(argc > 3) {
of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
- hdr = (image_header_t *)of_flat_tree;
+ fdt_hdr = (image_header_t *)of_flat_tree;
#if defined(CONFIG_OF_FLAT_TREE)
if (*((ulong *)(of_flat_tree)) == OF_DT_HEADER) {
#elif defined(CONFIG_OF_LIBFDT)
@@ -273,37 +258,37 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
if (addr2info((ulong)of_flat_tree) != NULL)
of_data = (ulong)of_flat_tree;
#endif
- } else if (image_check_magic (hdr)) {
- printf("## Flat Device Tree at %08lX\n", hdr);
- print_image_hdr (hdr);
+ } else if (image_check_magic (fdt_hdr)) {
+ printf ("## Flat Device Tree at %08lX\n", fdt_hdr);
+ print_image_hdr (fdt_hdr);
- if ((image_get_load (hdr) < ((unsigned long)hdr + image_get_image_size (hdr))) &&
- ((image_get_load (hdr) + image_get_data_size (hdr)) > (unsigned long)hdr)) {
+ if ((image_get_load (fdt_hdr) < image_get_image_end (fdt_hdr)) &&
+ ((image_get_load (fdt_hdr) + image_get_data_size (fdt_hdr)) > (unsigned long)fdt_hdr)) {
puts ("ERROR: fdt overwritten - "
"must RESET the board to recover.\n");
do_reset (cmdtp, flag, argc, argv);
}
puts (" Verifying Checksum ... ");
- if (!image_check_hcrc (hdr)) {
+ if (!image_check_hcrc (fdt_hdr)) {
puts ("ERROR: fdt header checksum invalid - "
"must RESET the board to recover.\n");
do_reset (cmdtp, flag, argc, argv);
}
- if (!image_check_dcrc (hdr)) {
+ if (!image_check_dcrc (fdt_hdr)) {
puts ("ERROR: fdt checksum invalid - "
"must RESET the board to recover.\n");
do_reset (cmdtp, flag, argc, argv);
}
puts ("OK\n");
- if (!image_check_type (hdr, IH_TYPE_FLATDT)) {
+ if (!image_check_type (fdt_hdr, IH_TYPE_FLATDT)) {
puts ("ERROR: uImage is not a fdt - "
"must RESET the board to recover.\n");
do_reset (cmdtp, flag, argc, argv);
}
- if (image_get_comp (hdr) != IH_COMP_NONE) {
+ if (image_get_comp (fdt_hdr) != IH_COMP_NONE) {
puts ("ERROR: uImage is compressed - "
"must RESET the board to recover.\n");
do_reset (cmdtp, flag, argc, argv);
@@ -318,11 +303,11 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
do_reset (cmdtp, flag, argc, argv);
}
- memmove ((void *)image_get_load (hdr),
+ memmove ((void *)image_get_load (fdt_hdr),
(void *)(of_flat_tree + image_get_header_size ()),
- image_get_data_size (hdr));
+ image_get_data_size (fdt_hdr));
- of_flat_tree = (char *)image_get_load (hdr);
+ of_flat_tree = (char *)image_get_load (fdt_hdr);
} else {
puts ("Did not find a flat Flat Device Tree.\n"
"Must RESET the board to recover.\n");
@@ -330,68 +315,52 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
}
printf (" Booting using the fdt at 0x%x\n",
of_flat_tree);
- } else if (image_check_type (hdr, IH_TYPE_MULTI) && (len_ptr[1]) && (len_ptr[2])) {
- u_long tail = image_to_cpu (len_ptr[0]) % 4;
- int i;
-
- /* skip kernel length, initrd length, and terminator */
- of_flat_tree = (char *)(&len_ptr[3]);
- /* skip any additional image length fields */
- for (i=2; len_ptr[i]; ++i)
- of_flat_tree += 4;
- /* add kernel length, and align */
- of_flat_tree += image_to_cpu (len_ptr[0]);
- if (tail) {
- of_flat_tree += 4 - tail;
- }
+ } else if (image_check_type (hdr, IH_TYPE_MULTI)) {
+ ulong fdt_data, fdt_len;
- /* add initrd length, and align */
- tail = image_to_cpu (len_ptr[1]) % 4;
- of_flat_tree += image_to_cpu (len_ptr[1]);
- if (tail) {
- of_flat_tree += 4 - tail;
- }
+ image_multi_getimg (hdr, 2, &fdt_data, &fdt_len);
+ if (fdt_len) {
+
+ of_flat_tree = (char *)fdt_data;
#ifndef CFG_NO_FLASH
- /* move the blob if it is in flash (set of_data to !null) */
- if (addr2info ((ulong)of_flat_tree) != NULL)
- of_data = (ulong)of_flat_tree;
+ /* move the blob if it is in flash (set of_data to !null) */
+ if (addr2info ((ulong)of_flat_tree) != NULL)
+ of_data = (ulong)of_flat_tree;
#endif
-
#if defined(CONFIG_OF_FLAT_TREE)
- if (*((ulong *)(of_flat_tree)) != OF_DT_HEADER) {
+ if (*((ulong *)(of_flat_tree)) != OF_DT_HEADER) {
#elif defined(CONFIG_OF_LIBFDT)
- if (fdt_check_header (of_flat_tree) != 0) {
+ if (fdt_check_header (of_flat_tree) != 0) {
#endif
- puts ("ERROR: image is not a fdt - "
- "must RESET the board to recover.\n");
- do_reset (cmdtp, flag, argc, argv);
- }
+ puts ("ERROR: image is not a fdt - "
+ "must RESET the board to recover.\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
#if defined(CONFIG_OF_FLAT_TREE)
- if (((struct boot_param_header *)of_flat_tree)->totalsize !=
- image_to_cpu (len_ptr[2])) {
+ if (((struct boot_param_header *)of_flat_tree)->totalsize != fdt_len) {
#elif defined(CONFIG_OF_LIBFDT)
- if (be32_to_cpu (fdt_totalsize (of_flat_tree)) !=
- image_to_cpu (len_ptr[2])) {
+ if (be32_to_cpu (fdt_totalsize (of_flat_tree)) != fdt_len) {
#endif
- puts ("ERROR: fdt size != image size - "
- "must RESET the board to recover.\n");
- do_reset (cmdtp, flag, argc, argv);
+ puts ("ERROR: fdt size != image size - "
+ "must RESET the board to recover.\n");
+ do_reset (cmdtp, flag, argc, argv);
+ }
}
}
#endif
- if (!data) {
+ if (!rd_data) {
debug ("No initrd\n");
}
- if (data) {
+ if (rd_data) {
if (!initrd_copy_to_ram) { /* zero-copy ramdisk support */
- initrd_start = data;
- initrd_end = initrd_start + len;
+ initrd_start = rd_data;
+ initrd_end = initrd_start + rd_len;
} else {
- initrd_start = (ulong)kbd - len;
+ initrd_start = (ulong)kbd - rd_len;
initrd_start &= ~(4096 - 1); /* align on page */
if (initrd_high) {
@@ -412,7 +381,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
nsp &= ~0xF;
if (nsp > initrd_high) /* limit as specified */
nsp = initrd_high;
- nsp -= len;
+ nsp -= rd_len;
nsp &= ~(4096 - 1); /* align on page */
if (nsp >= sp)
initrd_start = nsp;
@@ -421,14 +390,14 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
show_boot_progress (12);
debug ("## initrd at 0x%08lX ... 0x%08lX (len=%ld=0x%lX)\n",
- data, data + len - 1, len, len);
+ rd_data, rd_data + rd_len - 1, rd_len, rd_len);
- initrd_end = initrd_start + len;
+ initrd_end = initrd_start + rd_len;
printf (" Loading Ramdisk to %08lx, end %08lx ... ",
initrd_start, initrd_end);
memmove_wd((void *)initrd_start,
- (void *)data, len, CHUNKSZ);
+ (void *)rd_data, rd_len, CHUNKSZ);
puts ("OK\n");
}
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