Dear Stephen Warren,
On 08/03/2012 12:13 AM, Lukasz Majewski wrote:
Dear Stephen Warren,
Again, this is confusing two different kinds of partitions.
There are HW-level partitions/regions/areas within the eMMC HW itself. You need to send commands to the eMMC device to select whether read/write commands act on the boot0/boot1/general*/user HW partition.
This will be done via "mmc boot [dev] [HW partition (boot0/1/user]" command (from u-boot prompt).
Hmm. I still fail to see how this is any different to the existing "mmc dev" command. Are the following two commands not exactly identical:
mmc dev $dev $part # already exists today mmc boot $dev $part # new command you're proposing
?
You are totally right the $part part is the thing I'm looking for. I had in mind a previous version of "mmc dev" command with only the $dev part.
As I can see in the code - the mmc_switch() call does exactly the things that I need :-)
This command is not yet implemented at u-boot (at least for Trats development board). After its implementation it will be used as a helper function for dfu.