[U-Boot] [PATCH v2 2/3] common: cmd_part: start and size sub-commands introduction

[Stephen Warren]

On 06/13/2015 02:38 AM, Paul Kocialkowski wrote:
> This introduces the part start and part size sub-commands. The purpose of these
> is to store the start block and size of a partition in a variable, given the
> device and partition number.
>
> This allows reading raw data that fits a single partition more easily.
> For instance, this could be used to figure out the start block and size of a
> kernel partition when a partition table is present, given the partition number.

Patches 1 and 2,
Acked-by: Stephen Warren <swarren at nvidia.com>

One minor comment here though:

> diff --git a/common/cmd_part.c b/common/cmd_part.c

> +static int do_part_start(int argc, char * const argv[])

> +	if (argc < 4)
> +		return CMD_RET_USAGE;
...
> +	snprintf(buf, sizeof(buf), "0x%lx", info.start);
> +	setenv(argv[3], buf);

It would be nice if the variable name parameter to this command (and 
part size) were optional, just like it is in "part uuid". This would 
make it simpler to run the command interactively while experimenting.