diff options
Diffstat (limited to 'cmd/gpt.c')
| -rw-r--r-- | cmd/gpt.c | 26 |
1 files changed, 26 insertions, 0 deletions
@@ -398,6 +398,23 @@ static int gpt_verify(struct blk_desc *blk_dev_desc, const char *str_part) return ret; } +static int do_disk_guid(struct blk_desc *dev_desc, char * const namestr) +{ + int ret; + char disk_guid[UUID_STR_LEN + 1]; + + ret = get_disk_guid(dev_desc, disk_guid); + if (ret < 0) + return CMD_RET_FAILURE; + + if (namestr) + setenv(namestr, disk_guid); + else + printf("%s\n", disk_guid); + + return ret; +} + /** * do_gpt(): Perform GPT operations * @@ -436,6 +453,8 @@ static int do_gpt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } else if ((strcmp(argv[1], "verify") == 0)) { ret = gpt_verify(blk_dev_desc, argv[4]); printf("Verify GPT: "); + } else if (strcmp(argv[1], "guid") == 0) { + ret = do_disk_guid(blk_dev_desc, argv[4]); } else { return CMD_RET_USAGE; } @@ -458,4 +477,11 @@ U_BOOT_CMD(gpt, CONFIG_SYS_MAXARGS, 1, do_gpt, " Example usage:\n" " gpt write mmc 0 $partitions\n" " gpt verify mmc 0 $partitions\n" + " guid <interface> <dev>\n" + " - print disk GUID\n" + " guid <interface> <dev> <varname>\n" + " - set environment variable to disk GUID\n" + " Example usage:\n" + " gpt guid mmc 0\n" + " gpt guid mmc 0 varname\n" ); |