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Diffstat (limited to 'lib_i386/i386_linux.c')
-rw-r--r--lib_i386/i386_linux.c59
1 files changed, 29 insertions, 30 deletions
diff --git a/lib_i386/i386_linux.c b/lib_i386/i386_linux.c
index 5a596ff2b8..e5d8eea4b8 100644
--- a/lib_i386/i386_linux.c
+++ b/lib_i386/i386_linux.c
@@ -23,12 +23,13 @@
#include <common.h>
#include <command.h>
-#include <cmd_boot.h>
#include <image.h>
#include <zlib.h>
#include <asm/byteorder.h>
#include <asm/zimage.h>
+/*cmd_boot.c*/
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
extern image_header_t header; /* from cmd_bootm.c */
@@ -39,7 +40,7 @@ image_header_t *fake_header(image_header_t *hdr, void *ptr, int size)
if (NULL != fake_zimage_header(hdr, ptr, size)) {
return hdr;
}
-
+
return NULL;
}
@@ -48,47 +49,47 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
ulong addr, ulong *len_ptr, int verify)
{
void *base_ptr;
-
+
ulong len = 0, checksum;
ulong initrd_start, initrd_end;
ulong data;
image_header_t *hdr = &header;
-
+
/*
* Check if there is an initrd image
*/
if (argc >= 3) {
addr = simple_strtoul(argv[2], NULL, 16);
-
+
printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
-
+
/* Copy header so we can blank CRC field for re-calculation */
memcpy (&header, (char *)addr, sizeof(image_header_t));
-
+
if (ntohl(hdr->ih_magic) != IH_MAGIC) {
printf ("Bad Magic Number\n");
do_reset (cmdtp, flag, argc, argv);
}
-
+
data = (ulong)&header;
len = sizeof(image_header_t);
-
+
checksum = ntohl(hdr->ih_hcrc);
hdr->ih_hcrc = 0;
-
+
if (crc32 (0, (char *)data, len) != checksum) {
printf ("Bad Header Checksum\n");
do_reset (cmdtp, flag, argc, argv);
}
-
+
print_image_hdr (hdr);
-
+
data = addr + sizeof(image_header_t);
len = ntohl(hdr->ih_size);
-
+
if (verify) {
ulong csum = 0;
-
+
printf (" Verifying Checksum ... ");
csum = crc32 (0, (char *)data, len);
if (csum != ntohl(hdr->ih_dcrc)) {
@@ -97,21 +98,21 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
}
printf ("OK\n");
}
-
+
if ((hdr->ih_os != IH_OS_LINUX) ||
(hdr->ih_arch != IH_CPU_I386) ||
(hdr->ih_type != IH_TYPE_RAMDISK) ) {
printf ("No Linux i386 Ramdisk Image\n");
do_reset (cmdtp, flag, argc, argv);
}
-
+
/*
* Now check if we have a multifile image
*/
} else if ((hdr->ih_type==IH_TYPE_MULTI) && (len_ptr[1])) {
ulong tail = ntohl(len_ptr[0]) % 4;
int i;
-
+
/* skip kernel length and terminator */
data = (ulong)(&len_ptr[2]);
/* skip any additional image length fields */
@@ -122,22 +123,22 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
if (tail) {
data += 4 - tail;
}
-
+
len = ntohl(len_ptr[1]);
-
+
} else {
/*
* no initrd image
*/
data = 0;
}
-
+
#ifdef DEBUG
if (!data) {
printf ("No initrd\n");
}
#endif
-
+
if (data) {
initrd_start = data;
initrd_end = initrd_start + len;
@@ -149,26 +150,24 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
initrd_start = 0;
initrd_end = 0;
}
-
- base_ptr = load_zimage((void*)addr + sizeof(image_header_t), ntohl(hdr->ih_size),
+
+ base_ptr = load_zimage((void*)addr + sizeof(image_header_t), ntohl(hdr->ih_size),
initrd_start, initrd_end-initrd_start, 0);
if (NULL == base_ptr) {
printf ("## Kernel loading failed ...\n");
do_reset(cmdtp, flag, argc, argv);
-
+
}
-
+
#ifdef DEBUG
printf ("## Transferring control to Linux (at address %08x) ...\n",
(u32)base_ptr);
#endif
-
+
/* we assume that the kernel is in place */
printf("\nStarting kernel ...\n\n");
-
- boot_zimage(base_ptr);
-
-}
+ boot_zimage(base_ptr);
+}