On Thu, Jan 2, 2014 at 9:36 PM, Marek Vasut marex@denx.de wrote:
On Thursday, January 02, 2014 at 05:53:00 PM, Hector Palacios wrote:
Hi,
I saw commit 2a91c9134675140853577b565210458b5774e6cf that introduces mmc subcommands 'open' and 'close' to access eMMC boot partitions and was wondering if they are really needed. Can't the same be achieved with already existing 'mmc dev [dev] [part]' command?
mmc open <dev> <boot_partition> is the same as mmc dev <dev> <part> where <part> is the boot partition
mmc close <dev> <boot_partition> is the same as mmc dev <dev> 0 as a 0 will switch to partition 0 (user data).
Best regards,
Hector Palacios
+CC Panto
No; this is for different use.
The open and close are to open the Boot partitions part of eMMC 4; by default those eMMC will be using the user partitions, not the boot area.
The nice, and confusing thing, is that those boot partitions also start in address 0 as a 'virtual disk'.