[U-Boot] [PATCH 1/2] cmd_mmc: default to HW partition 0 if not specified

[Stephen Warren <swarren@wwwdotorg.org>]

On 05/23/2014 12:48 PM, Stephen Warren wrote:
> From: Stephen Warren <swarren@nvidia.com>
> 
> Currently, "mmc dev 0" does not change the selected HW partition. I
> think it makes more sense if "mmc dev 0" is an alias for "mmc dev 0 0",
> i.e. that HW partition 0 (main data area) is always selected by default
> if the user didn't request a specific partition. Otherwise, the following
> happens, which feels wrong:
> 
> Select HW partition 1 (boot0):
> mmc dev 0 1
> 
> Doesn't change the HW partition, so it's still 1 (boot0):
> mmc dev 0
> 
> With this patch, the second command above re-selects the main data area.
> 
> Note that some MMC devices (i.e. SD cards) don't support HW partitions.
> However, this patch still works, since mmc_start_init() sets the current
> partition number to 0, and mmc_select_hwpart() succeeds if the requested
> partition is already selected.

Pantelis, does this series look good?