diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/fdt.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -639,6 +639,27 @@ static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) #endif } +#ifdef CONFIG_OF_LIBFDT_OVERLAY + /* apply an overlay */ + else if (strncmp(argv[1], "ap", 2) == 0) { + unsigned long addr; + struct fdt_header *blob; + + if (argc != 3) + return CMD_RET_USAGE; + + if (!working_fdt) + return CMD_RET_FAILURE; + + addr = simple_strtoul(argv[2], NULL, 16); + blob = map_sysmem(addr, 0); + if (!fdt_valid(&blob)) + return CMD_RET_FAILURE; + + if (fdt_overlay_apply(working_fdt, blob)) + return CMD_RET_FAILURE; + } +#endif /* resize the fdt */ else if (strncmp(argv[1], "re", 2) == 0) { fdt_shrink_to_minimum(working_fdt); @@ -1025,6 +1046,9 @@ static int fdt_print(const char *pathp, char *prop, int depth) #ifdef CONFIG_SYS_LONGHELP static char fdt_help_text[] = "addr [-c] <addr> [<length>] - Set the [control] fdt location to <addr>\n" +#ifdef CONFIG_OF_LIBFDT_OVERLAY + "fdt apply <addr> - Apply overlay to the DT\n" +#endif #ifdef CONFIG_OF_BOARD_SETUP "fdt boardsetup - Do board-specific set up\n" #endif |