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?
Any way I will enable this config option and will provide you the results.
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.
