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

[razvan.becheriu at gmail.com]

From: Razvan Becheriu <razvan.becheriu at 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 at 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