|
|
|
@ -34,7 +34,11 @@ |
|
|
|
|
#include <environment.h> |
|
|
|
|
#include <asm/byteorder.h> |
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) |
|
|
|
|
#include <fdt.h> |
|
|
|
|
#include <libfdt.h> |
|
|
|
|
#endif |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) |
|
|
|
|
#include <ft_build.h> |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
@ -467,7 +471,7 @@ U_BOOT_CMD( |
|
|
|
|
"[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 |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT) |
|
|
|
|
"\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" |
|
|
|
@ -529,7 +533,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
bd_t *kbd; |
|
|
|
|
void (*kernel)(bd_t *, ulong, ulong, ulong, ulong); |
|
|
|
|
image_header_t *hdr = &header; |
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT) |
|
|
|
|
char *of_flat_tree = NULL; |
|
|
|
|
ulong of_data = 0; |
|
|
|
|
#endif |
|
|
|
@ -622,7 +626,7 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
* Check if there is an initrd image |
|
|
|
|
*/ |
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT) |
|
|
|
|
/* Look for a '-' which indicates to ignore the ramdisk argument */ |
|
|
|
|
if (argc >= 3 && strcmp(argv[2], "-") == 0) { |
|
|
|
|
debug ("Skipping initrd\n"); |
|
|
|
@ -739,12 +743,15 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
len = data = 0; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#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; |
|
|
|
|
|
|
|
|
|
if (*(ulong *)of_flat_tree == OF_DT_HEADER) { |
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) |
|
|
|
|
if (be32_to_cpu(fdt_magic(of_flat_tree)) == FDT_MAGIC) { |
|
|
|
|
#else |
|
|
|
|
if (*(ulong *)of_flat_tree == OF_DT_HEADER) { |
|
|
|
|
#endif |
|
|
|
|
#ifndef CFG_NO_FLASH |
|
|
|
|
if (addr2info((ulong)of_flat_tree) != NULL) |
|
|
|
|
of_data = (ulong)of_flat_tree; |
|
|
|
@ -787,7 +794,11 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
printf("ERROR: uImage is not uncompressed\n"); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) |
|
|
|
|
if (be32_to_cpu(fdt_magic(of_flat_tree + sizeof(image_header_t))) != FDT_MAGIC) { |
|
|
|
|
#else |
|
|
|
|
if (*((ulong *)(of_flat_tree + sizeof(image_header_t))) != OF_DT_HEADER) { |
|
|
|
|
#endif |
|
|
|
|
printf ("ERROR: uImage data is not a flat device tree\n"); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
@ -824,12 +835,20 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
of_data += 4 - tail; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) |
|
|
|
|
if (be32_to_cpu(fdt_magic(of_data)) != FDT_MAGIC) { |
|
|
|
|
#else |
|
|
|
|
if (((struct boot_param_header *)of_data)->magic != OF_DT_HEADER) { |
|
|
|
|
#endif |
|
|
|
|
printf ("ERROR: image is not a flat device tree\n"); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) |
|
|
|
|
if (be32_to_cpu(fdt_totalsize(of_data)) != ntohl(len_ptr[2])) { |
|
|
|
|
#else |
|
|
|
|
if (((struct boot_param_header *)of_data)->totalsize != ntohl(len_ptr[2])) { |
|
|
|
|
#endif |
|
|
|
|
printf ("ERROR: flat device tree size does not agree with image\n"); |
|
|
|
|
return; |
|
|
|
|
} |
|
|
|
@ -913,7 +932,31 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
unlock_ram_in_cache(); |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#if defined(CONFIG_OF_LIBFDT) |
|
|
|
|
/* move of_flat_tree if needed */ |
|
|
|
|
if (of_data) { |
|
|
|
|
int err; |
|
|
|
|
ulong of_start, of_len; |
|
|
|
|
of_len = be32_to_cpu(fdt_totalsize(of_data)); |
|
|
|
|
/* provide extra 8k pad */ |
|
|
|
|
if (initrd_start) |
|
|
|
|
of_start = initrd_start - of_len - 8192; |
|
|
|
|
else |
|
|
|
|
of_start = (ulong)kbd - of_len - 8192; |
|
|
|
|
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); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
printf (" Loading Device Tree to %08lx, end %08lx ... ", |
|
|
|
|
of_start, of_start + of_len - 1); |
|
|
|
|
err = fdt_open_into(of_start, of_data, of_len); |
|
|
|
|
if (err != 0) { |
|
|
|
|
printf ("libfdt: %s\n", fdt_strerror(err)); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
#endif |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) |
|
|
|
|
/* move of_flat_tree if needed */ |
|
|
|
|
if (of_data) { |
|
|
|
|
ulong of_start, of_len; |
|
|
|
@ -942,13 +985,13 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
* r6: Start of command line string |
|
|
|
|
* r7: End of command line string |
|
|
|
|
*/ |
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT) |
|
|
|
|
if (!of_flat_tree) /* no device tree; boot old style */ |
|
|
|
|
#endif |
|
|
|
|
(*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); |
|
|
|
|
/* does not return */ |
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_OF_FLAT_TREE |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) || defined(CONFIG_OF_LIBFDT) |
|
|
|
|
/*
|
|
|
|
|
* Linux Kernel Parameters (passing device tree): |
|
|
|
|
* r3: ptr to OF flat tree, followed by the board info data |
|
|
|
@ -957,8 +1000,10 @@ do_bootm_linux (cmd_tbl_t *cmdtp, int flag, |
|
|
|
|
* r6: NULL |
|
|
|
|
* r7: NULL |
|
|
|
|
*/ |
|
|
|
|
#if defined(CONFIG_OF_FLAT_TREE) |
|
|
|
|
ft_setup(of_flat_tree, kbd, initrd_start, initrd_end); |
|
|
|
|
/* ft_dump_blob(of_flat_tree); */ |
|
|
|
|
#endif |
|
|
|
|
|
|
|
|
|
(*kernel) ((bd_t *)of_flat_tree, (ulong)kernel, 0, 0, 0); |
|
|
|
|
#endif |
|
|
|
|