On 7/27/22 15:35, Enric Balletbo i Serra wrote:
This implements the following command:
part type mmc 0:1 -> print partittion type UUID
%s/partittion/partition/
part type mmc 0:1 uuid -> set environment variable to partition type UUID"part type" can be useful when writing a bootcmd which searches for a
Does such a command exist? Do you plan to implement such a command?
specific partition type to enable automatic discovery of partitions and their intended usage or mount point.
Signed-off-by: Enric Balletbo i Serra eballetbo@redhat.com
cmd/part.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)
diff --git a/cmd/part.c b/cmd/part.c index 9d419c967c..26b0cc84fe 100644 --- a/cmd/part.c +++ b/cmd/part.c @@ -182,6 +182,29 @@ static int do_part_number(int argc, char *const argv[]) return do_part_info(argc, argv, CMD_PART_INFO_NUMBER); }
+static int do_part_type(int argc, char *const argv[]) +{
- int part;
- struct blk_desc *dev_desc;
- struct disk_partition info;
- if (argc < 2)
return CMD_RET_USAGE;- if (argc > 3)
return CMD_RET_USAGE;- part = blk_get_device_part_str(argv[0], argv[1], &dev_desc, &info, 0);
- if (part < 0)
return 1;- if (argc > 2)
env_set(argv[2], info.type_guid);- else
printf("%s\n", info.type_guid);- return 0;
+}
- static int do_part_types(int argc, char * const argv[]) { struct part_driver *drv = ll_entry_start(struct part_driver,
@@ -218,6 +241,8 @@ static int do_part(struct cmd_tbl *cmdtp, int flag, int argc, return do_part_size(argc - 2, argv + 2); else if (!strcmp(argv[1], "number")) return do_part_number(argc - 2, argv + 2);
- else if (!strcmp(argv[1], "type"))
return do_part_type(argc - 2, argv + 2);@@ -244,6 +269,10 @@ U_BOOT_CMD( "part number <interface> <dev> <part> <varname>\n" " - set environment variable to the partition number using the partition name\n" " part must be specified as partition name\n"
- "part type <interface> <dev>:<part>\n"
- " - print partition type\n"
- "part type <interface> <dev>:<part> <varname>\n"
- " - set environment variable to partition type\n"
For each command we want a man-page in doc/usage/cmd. I miss a corresponding change in /doc.
Best regards
Heinrich
"part types\n" " - list supported partition table types" );