diff options
Diffstat (limited to 'common/cmd_fdt.c')
| -rw-r--r-- | common/cmd_fdt.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c index d3b19ddc1..94bca4646 100644 --- a/common/cmd_fdt.c +++ b/common/cmd_fdt.c @@ -67,6 +67,14 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) /* * Set the address [and length] of the fdt. */ + if (argc == 2) { + if (!fdt_valid()) { + return 1; + } + printf("The address of the fdt is %p\n", working_fdt); + return 0; + } + working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16); if (!fdt_valid()) { @@ -417,9 +425,21 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) ft_board_setup(working_fdt, gd->bd); #endif /* Create a chosen node */ - else if (argv[1][0] == 'c') - fdt_chosen(working_fdt, 0, 0, 1); - else { + else if (argv[1][0] == 'c') { + unsigned long initrd_start = 0, initrd_end = 0; + + if ((argc != 2) && (argc != 4)) { + printf ("Usage:\n%s\n", cmdtp->usage); + return 1; + } + + if (argc == 4) { + initrd_start = simple_strtoul(argv[2], NULL, 16); + initrd_end = simple_strtoul(argv[3], NULL, 16); + } + + fdt_chosen(working_fdt, initrd_start, initrd_end, 1); + } else { /* Unrecognized command */ printf ("Usage:\n%s\n", cmdtp->usage); return 1; @@ -798,7 +818,8 @@ U_BOOT_CMD( "fdt rsvmem print - Show current mem reserves\n" "fdt rsvmem add <addr> <size> - Add a mem reserve\n" "fdt rsvmem delete <index> - Delete a mem reserves\n" - "fdt chosen - Add/update the /chosen branch in the tree\n" - "NOTE: If the path or property you are setting/printing has a '#' character\n" - " or spaces, you MUST escape it with a \\ character or quote it with \".\n" + "fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n" + " <start>/<end> - initrd start/end addr\n" + "NOTE: Dereference aliases by omiting the leading '/', " + "e.g. fdt print ethernet0.\n" ); |