Re: non-Multiplatform APE6EVM broken in v3.18-rc1
From: Daniel Lezcano
Date: Mon Nov 03 2014 - 05:33:41 EST
On 10/30/2014 02:34 AM, Simon Horman wrote:
On Wed, Oct 29, 2014 at 06:05:03PM +0900, Simon Horman wrote:
On Wed, Oct 29, 2014 at 09:13:11AM +0100, Geert Uytterhoeven wrote:
On Wed, Oct 29, 2014 at 3:08 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
On Wed, Oct 29, 2014 at 09:12:58AM +0900, Simon Horman wrote:
On Tue, Oct 28, 2014 at 10:32:32AM +0100, Geert Uytterhoeven wrote:
On Tue, Oct 28, 2014 at 10:23 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
On Tue, Oct 28, 2014 at 08:59:28AM +0100, Geert Uytterhoeven wrote:
On Tue, Oct 28, 2014 at 1:41 AM, Simon Horman <horms@xxxxxxxxxxxx> wrote:
I have noticed that there appears to be a regression between v3.17 and
v3.18-rc1 such that non-multiplatform APE6EVM (ape6evm_defconfig) no longer
boots. This appears to be the case using both reference DT (MACH_APE6EVM)
It seems that the boot stops here:
...
smsc911x smsc911x eth0: MAC Address: 00:08:f7:00:02:4b
rcar_thermal rcar_thermal: Runtime PM disabled, clock forced on.
rcar_thermal rcar_thermal: 3 sensor probed
sh_mobile_sdhi sh_mobile_sdhi.0: Runtime PM disabled, clock forced on.
sh_mobile_sdhi sh_mobile_sdhi.0: No vqmmc regulator found
I re-ran my bisection and this time the following showed up as the culprit.
I suspect that the initialisation of mmcif, which is usually the next
device to be initialised, sleeps and never wakes up because the timer is
disabled.
commit c387f07e6205cc13f57c1def5f885bf0a20e1c2d
Author: Sudeep Holla <sudeep.holla@xxxxxxx>
Date: Mon Sep 29 01:50:05 2014 +0200
clocksource: arm_arch_timer: Discard unavailable timers correctly
Apparently reported and fixed by Laurent and a few others, cfr.
http://www.spinics.net/lists/arm-kernel/msg371615.html
I have temporarily cherry-picked the following, which is no present in
linux-next, into the devel branch of the renesas tree. It appears to
resolve the problem I reported.
b0ad5917960ca80f96bae ("ARM/ARM64: arch-timer: fix arch_timer_probed logic")
Yes, that is the right one.
This patch is now upstream and will be in -rc3.
Thanks
-- Daniel
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