Re: [PATCH v3 0/5] ARM: sunxi: Add basic support for Allwinner A80 SoC

From: Maxime Ripard
Date: Sat Oct 11 2014 - 05:20:42 EST


Hi,

On Thu, Oct 09, 2014 at 04:54:35AM +0200, Andreas Färber wrote:
> Hi,
>
> Am 08.10.2014 um 15:02 schrieb Chen-Yu Tsai:
> > This is v3 of the initial Allwinner A80 support series.
> > This patch series adds very basic support for Allwinner's A80 SoC,
> > a big.LITTLE architecture with 4 Cortex-A7s and 4 Cortex-A15s.
> >
> > Development is done on the A80 Optimus Board, the defacto development
> > board for the A80, with the accompanying SDK as a reference.
> >
> > So far I've been unable to get the board to boot from MMC, or
> > using Android fastboot. I'm using Allwinner's FEL mode to load
> > the bootloader and kernel+dtb image over USB. Notes on my attempts
> > can be found here: http://linux-sunxi.org/User:Wens#A80_Optimus
>
> Tested-by: Andreas Färber <afaerber@xxxxxxx>
>
> With this patch set on top of Maxime's sunxi-next branch, I get as far
> as searching for the rootfs.
>
> CPUs 1-7 fail to boot with -38, which I guess is due to the vendor
> U-Boot not yet supporting PSCI.

That, and Linux not having some SMP bringup code either.

Maxime

--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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