[U-Boot] [U-BOOT] [PATCH] mmc: enable switch partition function

[Wolfgang Denk]

Dear Lei Wen,

In message <1296463665-26551-1-git-send-email-leiwen at marvell.com> you wrote:
> For emmc, it may has upto 7 partitions: two boot partitions, one
> user partition, one RPMB partition and four general purpose partitions.
> (Refer to JESD84-A44.pdf/page 154)
> 
> As bootloader may need to read out or reflashing images on those
> different partitions, it is better to enable the partition switch with
> console command support.

Other devices - say, USB mass storage devices, IDE disks, etc. - have
partitions, too, and do not need any such special command.

> @@ -247,5 +268,6 @@ U_BOOT_CMD(
>  	"mmc write <device num> addr blk# cnt\n"
>  	"mmc rescan <device num>\n"
>  	"mmc part <device num> - lists available partition on mmc\n"
> +	"mmc sw_part <device num> <part_num> - switch part support for emmc\n"
>  	"mmc list - lists available devices");

Why would we need a separate command here?


Please rework this so it uses the same mechanism we use on all other
storage devices, without an extra command here.

Thanks.

Best regards,

Wolfgang Denk

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