diff options
Diffstat (limited to 'common/cmd_bootm.c')
| -rw-r--r-- | common/cmd_bootm.c | 65 |
1 files changed, 55 insertions, 10 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index c0ed076..ab8648f 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -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 |