On 19/11/2018 11:35, Biju Das wrote:
> Hi Daniel,
>
> Thanks for the feedback.
>
>> -----Original Message-----
>> From: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
>> Sent: 19 November 2018 10:26
>> To: Biju Das <biju.das@xxxxxxxxxxxxxx>; Rob Herring
>> <robh+dt@xxxxxxxxxx>; Mark Rutland <mark.rutland@xxxxxxx>
>> Cc: Simon Horman <horms@xxxxxxxxxxxx>; Magnus Damm
>> <magnus.damm@xxxxxxxxx>; linux-renesas-soc@xxxxxxxxxxxxxxx;
>> devicetree@xxxxxxxxxxxxxxx; Geert Uytterhoeven
>> <geert+renesas@xxxxxxxxx>; Chris Paterson
>> <Chris.Paterson2@xxxxxxxxxxx>; Thomas Gleixner <tglx@xxxxxxxxxxxxx>;
>> John Stultz <john.stultz@xxxxxxxxxx>; Fabrizio Castro
>> <fabrizio.castro@xxxxxxxxxxxxxx>
>> Subject: Re: [PATCH] arm64: dts: renesas: r8a7796: Add CMT device nodes
>>
>> On 26/10/2018 10:25, Biju Das wrote:
>>> This patch adds CMT{0|1|2|3} device nodes for r8a7796 SoC.
>>>
>>> Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
>>> ---
>>> This patch is tested against renesas-dev
>>>
>>> I have executed on inconsistency-check, nanosleep and
>>> clocksource_switch selftests on this arm64 SoC. The
>>> inconsistency-check and nanosleep tests are working fine.The
>>> clocksource_switch asynchronous test is failing due to inconsistency-check
>> failure on "arch_sys_counter".
>>>
>>> But if i skip the clocksource_switching of "arch_sys_counter", the
>>> asynchronous test is passing for CMT0/1/2/3 timer.
>>>
>>> Has any one noticed this issue?
>>
>> So now that you mention that, I've been through the clocksource_switch on
>> another ARM64 platform (hikey960) and disabled the
>> ARM64_ERRATUM_858921 config option. I can see the same issue.
>>
>> Is this option set on your config ?
>
> No. As per " config ARM64_ERRATUM_858921", it is "Workaround for Cortex-A73 erratum 858921"
>
> Our SoC is 2xCA-57 + 4 x CA-53. Does it impact CA-57 + CA_53?
Dunno :/
> Any way I will enable this config option and will provide you the results.
Ok, thanks!
> The following errata is set in our kernel config.
>
> CONFIG_ARM64_ERRATUM_826319=y
> CONFIG_ARM64_ERRATUM_827319=y
> CONFIG_ARM64_ERRATUM_824069=y
> CONFIG_ARM64_ERRATUM_819472=y
> CONFIG_ARM64_ERRATUM_832075=y
> CONFIG_ARM64_ERRATUM_834220=y
> CONFIG_ARM64_ERRATUM_845719=y
> CONFIG_ARM64_ERRATUM_843419=y
> CONFIG_ARM64_ERRATUM_1024718=y
> CONFIG_ARM64_ERRATUM_1188873=y
>
> Regards.
> Biju
>
>
>
> Renesas Electronics Europe Ltd, Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK. Registered in England & Wales under Registered No. 04586709.
>
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