[U-Boot] MinnowBoard Max uboot

[Beaman, Thomas]

Hi Simon, 

Do you know what will be the timeframe of when someone may be able to look at this in more detail. I will be able to help test any updates if needed

Thanks,
Tom

-----Original Message-----
From: sjg at google.com [mailto:sjg at google.com] On Behalf Of Simon Glass
Sent: Monday, March 09, 2015 11:49 AM
To: Beaman, Thomas
Cc: u-boot at lists.denx.de; Bin Meng; gabriel huau
Subject: Re: MinnowBoard Max uboot

+Bin and Gabriel

Hi Tom,

On 9 March 2015 at 08:08, Beaman, Thomas <Thomas.Beaman at xerox.com> wrote:
>
>
> Hi Simon,
>
>
>
> I see you have put support for the MinnowBoard Max in the u-boot mainline.
> Thanks this is a very useful addition.  I have been able to follow 
> your readme and build a working bare metal uboot. Using the built 
> uboot I can load and bring up a Linux Kernel.
>
>
>
> What I noticed from the running kernel is that only one of the two 
> cores on the E3825 is running. In the power PC uboots I usually see a 
> section for the multiple cores in the .dts file. My questions is how 
> do I get both CPUs running on this board. Is it a uboot .dts file 
> setup that will enable this, or is something in the kernel start up that does this.
>
>
>
> As a test I boot the same kernel using the EFI BIOS on the minnow 
> board and both CPUs are running.
>
>
>
> Any suggestions or comments you have would be welcomed.
>
>

My guess is that the LAPIC CPU start-up is missing. It isn't 100% clear what the FSP does and does not do, but perhaps it does not do that.

I did make something of a start on this with ivybridge but it isn't complete, and it seems to be needed here.

Regards,
Simon