[PATCH] cmd: part: Add 'block' sub-command

razvan.becheriu at gmail.com
2020-06-01T10:20:26Z

From: Razvan Becheriu <razvan.becheriu@gmail.com>

Add part block sub-command which returns block size.

e.g.:
part block mmc $mmcdev system_a system_a_index

Signed-off-by: Razvan Becheriu <razvan.becheriu@gmail.com>
---
cmd/part.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/cmd/part.c b/cmd/part.c
index 5e4e45ca6d..d78d914e7a 100644
--- a/cmd/part.c
+++ b/cmd/part.c
@@ -25,6 +25,7 @@
enum cmd_part_info {
CMD_PART_INFO_START = 0,
CMD_PART_INFO_SIZE,
+ CMD_PART_INFO_BLOCK,
CMD_PART_INFO_NUMBER
};

@@ -151,6 +152,9 @@ static int do_part_info(int argc, char * const argv[], enum cmd_part_info param)
case CMD_PART_INFO_SIZE:
snprintf(buf, sizeof(buf), LBAF, info.size);
break;
+ case CMD_PART_INFO_BLOCK:
+ snprintf(buf, sizeof(buf), LBAF, info.blksz);
+ break;
case CMD_PART_INFO_NUMBER:
snprintf(buf, sizeof(buf), "0x%x", part);
break;
@@ -177,6 +181,11 @@ static int do_part_size(int argc, char * const argv[])
return do_part_info(argc, argv, CMD_PART_INFO_SIZE);
}

+static int do_part_block(int argc, char * const argv[])
+{
+ return do_part_info(argc, argv, CMD_PART_INFO_BLOCK);
+}
+
static int do_part_number(int argc, char * const argv[])
{
return do_part_info(argc, argv, CMD_PART_INFO_NUMBER);
@@ -195,6 +204,8 @@ static int do_part(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return do_part_start(argc - 2, argv + 2);
else if (!strcmp(argv[1], "size"))
return do_part_size(argc - 2, argv + 2);
+ else if (!strcmp(argv[1], "block"))
+ return do_part_block(argc - 2, argv + 2);
else if (!strcmp(argv[1], "number"))
return do_part_number(argc - 2, argv + 2);

@@ -219,6 +230,9 @@ U_BOOT_CMD(
"part size <interface> <dev> <part> <varname>\n"
" - set environment variable to the size of the partition (in blocks)\n"
" part can be either partition number or partition name\n"
+ "part block <interface> <dev> <part> <varname>\n"
+ " - set environment variable to the size of the partition block\n"
+ " part can be either partition number or partition name\n"
"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"
--
2.25.1