/*
- * (C) Copyright 2000-2002
+ * (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
#include <ft_build.h>
#endif
+DECLARE_GLOBAL_DATA_PTR;
+
/*cmd_boot.c*/
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
extern void lynxkdi_boot( image_header_t * );
#endif
+#ifndef CFG_BOOTM_LEN
+#define CFG_BOOTM_LEN 0x800000 /* use 8MByte as default max gunzip size */
+#endif
+
image_header_t header;
ulong load_addr = CFG_LOAD_ADDR; /* Default Load Address */
ulong addr;
ulong data, len, checksum;
ulong *len_ptr;
- uint unc_len = 0x400000;
+ uint unc_len = CFG_BOOTM_LEN;
int i, verify;
char *name, *s;
int (*appl)(int, char *[]);
if (hdr->ih_arch != IH_CPU_MICROBLAZE)
#elif defined(__nios2__)
if (hdr->ih_arch != IH_CPU_NIOS2)
+#elif defined(__blackfin__)
+ if (hdr->ih_arch != IH_CPU_BLACKFIN)
#else
# error Unknown CPU type
#endif
"[addr [arg ...]]\n - boot application image stored in memory\n"
"\tpassing arguments 'arg ...'; when booting a Linux kernel,\n"
"\t'arg' can be the address of an initrd image\n"
+#ifdef CONFIG_OF_FLAT_TREE
+ "\tWhen booting a Linux kernel which requires a flat device-tree\n"
+ "\ta third argument is required which is the address of the of the\n"
+ "\tdevice-tree blob. To boot that kernel without an initrd image,\n"
+ "\tuse a '-' for the second argument. If you do not pass a third\n"
+ "\ta bd_info struct will be passed instead\n"
+#endif
);
#ifdef CONFIG_SILENT_CONSOLE
static void
fixup_silent_linux ()
{
- DECLARE_GLOBAL_DATA_PTR;
char buf[256], *start, *end;
char *cmdline = getenv ("bootargs");
}
#endif /* CONFIG_SILENT_CONSOLE */
-#ifdef CONFIG_OF_FLAT_TREE
-extern const unsigned char oftree_dtb[];
-extern const unsigned int oftree_dtb_len;
-#endif
-
#ifdef CONFIG_PPC
static void
do_bootm_linux (cmd_tbl_t *cmdtp, int flag,
ulong *len_ptr,
int verify)
{
- DECLARE_GLOBAL_DATA_PTR;
-
ulong sp;
ulong len, checksum;
ulong initrd_start, initrd_end;
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong);
image_header_t *hdr = &header;
#ifdef CONFIG_OF_FLAT_TREE
- char *of_flat_tree;
+ char *of_flat_tree = NULL;
#endif
if ((s = getenv ("initrd_high")) != NULL) {
/*
* Check if there is an initrd image
*/
+
+#ifdef CONFIG_OF_FLAT_TREE
+ /* Look for a '-' which indicates to ignore the ramdisk argument */
+ if (argc >= 3 && strcmp(argv[2], "-") == 0) {
+ debug ("Skipping initrd\n");
+ data = 0;
+ }
+ else
+#endif
if (argc >= 3) {
+ debug ("Not skipping initrd\n");
SHOW_BOOT_PROGRESS (9);
addr = simple_strtoul(argv[2], NULL, 16);
len = data = 0;
}
+#ifdef CONFIG_OF_FLAT_TREE
+ if(argc > 3) {
+ of_flat_tree = (char *) simple_strtoul(argv[3], NULL, 16);
+ hdr = (image_header_t *)of_flat_tree;
+
+ if (*(ulong *)of_flat_tree == OF_DT_HEADER) {
+#ifndef CFG_NO_FLASH
+ if (addr2info((ulong)of_flat_tree) != NULL) {
+ printf ("Cannot modify flat device tree stored in flash\n" \
+ "Copy to memory before using the bootm command\n");
+ return;
+ }
+#endif
+ } else if (ntohl(hdr->ih_magic) == IH_MAGIC) {
+ printf("## Flat Device Tree Image at %08lX\n", hdr);
+ print_image_hdr(hdr);
+
+ if ((ntohl(hdr->ih_load) < ((unsigned long)hdr + ntohl(hdr->ih_size) + sizeof(hdr))) &&
+ ((ntohl(hdr->ih_load) + ntohl(hdr->ih_size)) > (unsigned long)hdr)) {
+ printf ("ERROR: Load address overwrites Flat Device Tree uImage\n");
+ return;
+ }
+
+ printf(" Verifying Checksum ... ");
+ memmove (&header, (char *)hdr, sizeof(image_header_t));
+ checksum = ntohl(header.ih_hcrc);
+ header.ih_hcrc = 0;
+
+ if(checksum != crc32(0, (uchar *)&header, sizeof(image_header_t))) {
+ printf("ERROR: Flat Device Tree header checksum is invalid\n");
+ return;
+ }
+
+ checksum = ntohl(hdr->ih_dcrc);
+ addr = (ulong)((uchar *)(hdr) + sizeof(image_header_t));
+ len = ntohl(hdr->ih_size);
+
+ if(checksum != crc32(0, (uchar *)addr, len)) {
+ printf("ERROR: Flat Device Tree checksum is invalid\n");
+ return;
+ }
+ printf("OK\n");
+
+ if (ntohl(hdr->ih_type) != IH_TYPE_FLATDT) {
+ printf ("ERROR: uImage not Flat Device Tree type\n");
+ return;
+ }
+ if (ntohl(hdr->ih_comp) != IH_COMP_NONE) {
+ printf("ERROR: uImage is not uncompressed\n");
+ return;
+ }
+ if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) {
+ printf ("ERROR: uImage data is not a flat device tree\n");
+ return;
+ }
+
+ memmove((void *)ntohl(hdr->ih_load),
+ (void *)(of_flat_tree + sizeof(image_header_t)),
+ ntohl(hdr->ih_size));
+ of_flat_tree = (char *)ntohl(hdr->ih_load);
+ } else {
+ printf ("Did not find a flat flat device tree at address %08lX\n", of_flat_tree);
+ return;
+ }
+ printf (" Booting using flat device tree at 0x%x\n",
+ of_flat_tree);
+ } else if(getenv("disable_of") == NULL) {
+ printf ("ERROR: bootm needs flat device tree as third argument\n");
+ return;
+ }
+#endif
if (!data) {
debug ("No initrd\n");
}
initrd_end = 0;
}
-#ifdef CONFIG_OF_FLAT_TREE
- if (initrd_start == 0)
- of_flat_tree = (char *)(((ulong)kbd - OF_FLAT_TREE_MAX_SIZE -
- sizeof(bd_t)) & ~0xF);
- else
- of_flat_tree = (char *)((initrd_start - OF_FLAT_TREE_MAX_SIZE -
- sizeof(bd_t)) & ~0xF);
-#endif
-
debug ("## Transferring control to Linux (at address %08lx) ...\n",
(ulong)kernel);
(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end);
#else
- ft_setup(of_flat_tree, OF_FLAT_TREE_MAX_SIZE, kbd);
+ ft_setup(of_flat_tree, kbd, initrd_start, initrd_end);
/* ft_dump_blob(of_flat_tree); */
#if defined(CFG_INIT_RAM_LOCK) && !defined(CONFIG_E500)
/*
* Linux Kernel Parameters:
* r3: ptr to OF flat tree, followed by the board info data
- * r4: initrd_start or 0 if no initrd
- * r5: initrd_end - unused if r4 is 0
- * r6: Start of command line string
- * r7: End of command line string
+ * r4: physical pointer to the kernel itself
+ * r5: NULL
+ * r6: NULL
+ * r7: NULL
*/
- (*kernel) ((bd_t *)of_flat_tree, initrd_start, initrd_end, cmd_start, cmd_end);
+ if (getenv("disable_of") != NULL)
+ (*kernel) ((bd_t *)of_flat_tree, initrd_start, initrd_end,
+ cmd_start, cmd_end);
+ else
+ (*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0);
#endif
}
ulong *len_ptr,
int verify)
{
- DECLARE_GLOBAL_DATA_PTR;
-
image_header_t *hdr = &header;
void (*loader)(bd_t *, image_header_t *, char *, char *);
ulong *len_ptr,
int verify)
{
- DECLARE_GLOBAL_DATA_PTR;
ulong top;
char *s, *cmdline;
char **fwenv, **ss;
case IH_TYPE_MULTI: type = "Multi-File Image"; break;
case IH_TYPE_FIRMWARE: type = "Firmware"; break;
case IH_TYPE_SCRIPT: type = "Script"; break;
+ case IH_TYPE_FLATDT: type = "Flat Device Tree"; break;
default: type = "Unknown Image"; break;
}
do_bootm_rtems (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
ulong addr, ulong *len_ptr, int verify)
{
- DECLARE_GLOBAL_DATA_PTR;
image_header_t *hdr = &header;
void (*entry_point)(bd_t *);
projects / platform / kernel / u-boot.git / blobdiff