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

[razvan becheriu]

>From 4376dc705acefb5b5281d32dcc1cb5084c61f99c Mon Sep 17 00:00:00 2001
From: Razvan Becheriu <razvan at gmail.com>
Date: Wed, 22 Apr 2020 00:17:33 +0300
Subject: [PATCH]     cmd: part: Add 'block' sub-command

    Add part block sub-command which returns partition block size.

    e.g.:
     part block mmc $mmcdev system_a system_a_index
---
 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"
-- 
2.17.1