Hi,
On 11/24/2013 02:22 PM, Richard W.M. Jones wrote:
On Sun, Nov 24, 2013 at 12:35:52PM +0100, Hans de Goede wrote:
Alternatively, and likely a better path, esp. given that you want to
do virt on it, you could try to get the upstream kernel running on it.
The first step would be to find a u-boot which support sd-card boot
on the A31, and I don't know if someone already has that working.
The upstream kernel does have rudimentary A31 support, and as A10 /
A20 support gets enhanced, A31 support should more or less grow in
sync, since they mostly use the same ip blocks. This does require
someone to write the necessary devicetree bits for A31. Some of
the linux-sunxi devs do have A31 boards (I don't). So I would expect
them to write such device tree support.
Yes, definitely upstream is the better choice for our requirements
(getting KVM going).
I spent a good deal of time yesterday trying to run the upstream,
sunxi-next, sunxi-next-a20-smp and sunxi-devel kernels on the
Cubietruck (A20). The kernels all compile OK, but I had no success
booting any of them. It seems to hang very early on, before even
uncompressing the kernel.
Does anyone have a working boot.cmd for the Cubietruck with an
upstream kernel? Or even a description of the process of booting?
Have you seen this ?
http://linux-sunxi.org/Mainline_Kernel_Howto
That works for me together with this kernel tree:
https://github.com/mripard/linux/tree/sunxi-next
But only if I use an appended ramdisk as advised, I've not
yet managed to get things to work with a separate ramdisk ...
Unfortunately I've not managed to get any further then that.
Last week I've just finished my last large project (usb-3 bulk
streams + uas support in both the kernel and qemu), so hopefully
soon I'll have time to really start looking into mmc support for
the upstream kernel. But first I'm going to take it easy a few
weeks (catching my breath after the big push I did at the end
of that last project).
Regards,
Hans
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