linux-kernel - Re: [PATCH v11 0/3] Exynos 5410 support

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Message-ID: <7hzjhvxsgp.fsf@paris.lan>
Date:	Mon, 02 Jun 2014 08:05:10 -0700
From:	Kevin Hilman <khilman@...aro.org>
To:	Tarek Dakhran <t.dakhran@...il.com>
Cc:	Tushar Behera <trblinux@...il.com>,
	Andreas Färber <afaerber@...e.de>,
	Tarek Dakhran <t.dakhran@...sung.com>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	Kukjin Kim <kgene.kim@...sung.com>, devicetree@...r.kernel.org,
	"linux-arm-kernel\@lists.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-samsung-soc\@vger.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>
Subject: Re: [PATCH v11 0/3] Exynos 5410 support

Tarek Dakhran <t.dakhran@...il.com> writes:

> Hi,
>
> On Fri, May 30, 2014 at 7:41 AM, Tushar Behera <trblinux@...il.com> wrote:
>> On Thu, May 29, 2014 at 11:30 PM, Andreas Färber <afaerber@...e.de> wrote:
>>> Hi Tarek,
>>>
>>>
>>> And I reproducibly get failures for CPUs 1-3, resulting in only one CPU
>>> in /proc/cpuinfo (compared to 4 on downstream 3.14):
>>>
>>> [    0.045778] CPU: Testing write buffer coherency: ok
>>> [    0.045968] /cpus/cpu@0 missing clock-frequency property
>>> [    0.045993] /cpus/cpu@1 missing clock-frequency property
>>> [    0.046016] /cpus/cpu@2 missing clock-frequency property
>>> [    0.046040] /cpus/cpu@3 missing clock-frequency property
>>> [    0.046059] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
>>> [    0.046135] Setting up static identity map for 0x403a8920 - 0x403a8978
>>> [    2.075052] CPU1: failed to come online
>>> [    4.085095] CPU2: failed to come online
>>> [    6.095142] CPU3: failed to come online
>>> [    6.095237] Brought up 1 CPUs
>>> [    6.095269] SMP: Total of 1 processors activated.
>>> [    6.095303] CPU: All CPU(s) started in HYP mode.
>>> [    6.095336] CPU: Virtualization extensions available.
>>>
>>> I also notice another apparent device tree issue:
>>>
>>> [    7.341814] of_get_named_gpiod_flags: can't parse gpios property of
>>> node '/soc/mmc@...20000/slot@0[0]'
>>> [    7.341850] of_get_named_gpiod_flags: can't parse gpios property of
>>> node '/soc/mmc@...20000/slot@0[0]'
>>>
>>> Are any of those known issues and being worked on?
>>> (The CPU failures affected 5420 Arndale Octa as well iirc.)
>>>
>>
>> Can you check after applying following two patches for Arndale-Octa
>> ([1],[2])? In other words, a patch similar to [2] might be required
>> for this board too if it is booting under secure mode.
>
> Firmware node already present into exynos5410-smdk5410.dts
> So with only patch[1] 4xA15 cores will boot on ODROID-XU and SMDK5410.

I also confirm that with 4xA15 cores boot when adding patch [1].

Kevin

>>
>> [1] http://www.spinics.net/lists/linux-samsung-soc/msg31776.html
>>
>> [PATCH v2 Resend 1/2] ARM: EXYNOS: Update secondary boot addr for secure mode
>>
>> [2] http://www.spinics.net/lists/linux-samsung-soc/msg31777.html
>>
>> [PATCH v2 Resend 2/2] ARM: dts: Add secure firmware support for Arndale-octa
>>
>>
>> --
>> Tushar Behera
>
> Best regards,
>     Tarek
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