On Fri, 22 Nov 2013, Jon Medhurst (Tixy) wrote:
On Fri, 2013-11-22 at 13:58 +0800, Alex Shi wrote:
On 11/21/2013 01:09 PM, Nicolas Pitre wrote:
I've been banging my head on this one for quite a while now. The problem is that there is very little debug out put available. Could you see if you get the same?
Mainline kernel (I'm using commit 527d151131 right now but older kernels are also affected). Most interesting config options:
Yes, I am using this kernel too. but when I try to update kernel and dtb in lava lab's mphackbox, the kernel even can not boot up.
I am using vexpress-v2p-ca15_a7.dts and vexpress_defconfig, Did I miss sth?
============ Begin: Loading essential drivers ... done. Begin: Runnimmci-pl18x 1c050000.mmci: no support for card's volts ng /scripts/initmmc0: error -22 whilst initialising SD card -premount ... done. Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done. mmci-pl18x 1c050000.mmci: no support for card's volts mmc0: error -22 whilst initialising SD card
MMC seems to be currently broken in mainline on vexpress (looks like usual problems around regulators we get every time someone messes with mmci driver). I'm using USB for the rootfs and I think other people may be using that too, or NFS, so won't be hitting that particular problem.
MMC is broken on TC2 at the firmware level anyway and should preferably be avoided, even when the kernel driver works properly. Details can be found here: https://bugs.launchpad.net/bugs/1166246
Nicolas