[U-Boot] [PATCH 1/5] ls2080: Exit dpaa only right before exiting U-Boot

Alexander Graf agraf at suse.de
Fri May 27 16:27:47 CEST 2016


On 05/18/2016 02:29 PM, Prabhakar Kushwaha wrote:
>> -----Original Message-----
>> From: U-Boot [mailto:u-boot-bounces at lists.denx.de] On Behalf Of
>> Alexander Graf
>> Sent: Friday, May 13, 2016 5:52 PM
>> To: u-boot at lists.denx.de
>> Subject: [U-Boot] [PATCH 1/5] ls2080: Exit dpaa only right before exiting U-
>> Boot
>>
>> On ls2080 we have a separate network fabric component which we need to
>> shut down before we enter Linux (or any other OS). Along with that also
>> comes configuration of the fabric using a description file.
>>
>> Today we always stop and configure the fabric in the boot script and
>> (again) exit it on device tree generation. This works ok for the normal booti
>> case, but with bootefi the payload we're running may still want to access the
>> network.
>>
>> So let's add a new fsl_mc command that defers configuration and stopping
>> the hardware to when we actually exit U-Boot, so that we can still use the
>> fabric from an EFI payload.
>>
>> For existing boot scripts, nothing should change with this patch.
>>
>> Signed-off-by: Alexander Graf <agraf at suse.de>
> With this patch.
>
> If I does not apply MC,  I am getting following crash:-
>
> Starting kernel ...
>
> "Synchronous Abort" handler, esr 0x96000044

So should we consider it a bug fix or regression then? :)


Alex



More information about the U-Boot mailing list