[U-Boot] [PATCH] ti: boot: Register the MMC controllers in SPL in the same way as in u-boot

Jean-Jacques Hiblot jjhiblot at ti.com
Mon Feb 6 12:25:19 CET 2017



On 03/02/2017 17:52, Tom Rini wrote:
> On Wed, Feb 01, 2017 at 11:39:14AM +0100, Jean-Jacques Hiblot wrote:
>> To keep a consistent MMC device mapping in SPL and in u-boot, let's
>> register the MMC controllers the same way in u-boot and in the SPL.
>> In terms of boot time, it doesn't hurt to register more controllers than
>> needed because the MMC device is initialized only prior being accessed for
>> the first time.
>> Having the same device mapping in SPL and u-boot allows us to use the
>> environment in SPL whatever the MMC boot device.
>>
>> Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
>> ---
>>
>> This has been tested on DRA7 platforms, AM437x Starter Kit and Beaglebone Black.
>> I also checked that building the TI-based platforms was okay using buildman:
>> tools/buildman/buildman -d -e -l omap am33 davinci
> Did you test this around falcon mode and bootcount as well?  Thanks!
I tested the falcon boot on beaglebone, DRA7 and am437x. Note that more 
changes are required to make it work properly: FDT memory nodes fixup + 
support for spl_start_uboot() for the am437x SK. They'll be submitted later.

I didn't check bootcount because I didn't know about it. I don't think 
it could have broken since it's not used in SPL and I checked that the 
env was working in u-boot: I'm setting the variable 'boot_os' from the 
u-boot prompt to activate/deactivate the falcon boot.

>



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