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

[Tom Rini]

On Wed, Apr 22, 2020 at 01:13:06AM +0300, razvan becheriu wrote:

> 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"

Please re-send this via git send-email as this is totally mangled.  Also
please explain the use case for this command as it's going to
unconditionally grow a lot of platforms.  Thanks!

-- 
Tom
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