lkml.org 
[lkml]   [2018]   [Jul]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2 4/4] ARM: exynos: Fix imprecise abort during Exynos5422 suspend to RAM
Hi Krzysztof,

On 26 July 2018 at 12:10, Krzysztof Kozlowski <krzk@kernel.org> wrote:
> On 26 July 2018 at 08:22, Anand Moon <linux.amoon@gmail.com> wrote:
>> Hi Krzysztof,
>>
>> On 24 July 2018 at 22:19, Krzysztof Kozlowski <krzk@kernel.org> wrote:
>>> Suspend to RAM on Odroid XU3/XU4/HC1 family (Exynos5422) causes
>>> imprecise abort:
>>>
>>> PM: Syncing filesystems ... done.
>>> Freezing user space processes ... (elapsed 0.003 seconds) done.
>>> OOM killer disabled.
>>> Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done.
>>> wake enabled for irq 139
>>> Disabling non-boot CPUs ...
>>> IRQ51 no longer affine to CPU1
>>> IRQ52 no longer affine to CPU2
>>> IRQ53 no longer affine to CPU3
>>> IRQ54 no longer affine to CPU4
>>> IRQ55 no longer affine to CPU5
>>> IRQ56 no longer affine to CPU6
>>> cpu cpu4: Dropping the link to regulator.40
>>> IRQ57 no longer affine to CPU7
>>> Unhandled fault: external abort on non-linefetch (0x1008) at 0xf081a028
>>> Internal error: : 1008 [#1] PREEMPT SMP ARM
>>>
>>> with last call trace in exynos_suspend_enter().
>>>
>>> The abort is caused by writing to register in secure part of sysram.
>>> Boards booted under secure firmware (e.g. Hardkernel Odroid boards)
>>> should access non-secure sysram.
>>>
>>> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
>>>
>>
>> I could not get the suspend to ram working on my Odroid-XU4.
>
> Correct, resuming from suspend to RAM does not work on Exynos5422
> (yet). The patch does not add support for it. I did not write that it
> works. The only thing patch does, is fixing the imprecise abort during
> suspend.
>
> Best regards,
> Krzysztof

Ok thanks for the input.

Best Regards
-Anand

\
 
 \ /
  Last update: 2018-07-26 09:10    [W:0.051 / U:0.556 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site