Re: [PATCH] ARM: shmobile: select errata 798181 for SoCs with CA15 cores

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Hi Geert and Simon,

On Thu, Oct 27, 2016 at 4:33 PM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> Hi Magnus,
>
> On Thu, Oct 27, 2016 at 9:28 AM, Magnus Damm <magnus.damm@xxxxxxxxx> wrote:
>> On Thu, Oct 27, 2016 at 4:00 PM, Simon Horman
>> <horms+renesas@xxxxxxxxxxxx> wrote:
>>> Select ARM errata 798181 on SoCs cores affected CA15 cores.
>>>
>>> Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
>>> ---
>>>  arch/arm/mach-shmobile/Kconfig | 6 ++++++
>>>  1 file changed, 6 insertions(+)
>>>
>>> diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
>>> index c48be1d332ed..6fbd9b7d2d67 100644
>>> --- a/arch/arm/mach-shmobile/Kconfig
>>> +++ b/arch/arm/mach-shmobile/Kconfig
>>> @@ -60,6 +60,7 @@ config ARCH_R7S72100
>>>  config ARCH_R8A73A4
>>>         bool "R-Mobile APE6 (R8A73A40)"
>>>         select ARCH_RMOBILE
>>> +       select ARM_ERRATA_798181 if SMP
>>>         select RENESAS_IRQC
>>>
>>>  config ARCH_R8A7740
>>> @@ -70,6 +71,7 @@ config ARCH_R8A7740
>>>  config ARCH_R8A7743
>>>         bool "RZ/G1M (R8A77430)"
>>>         select ARCH_RCAR_GEN2
>>> +       select ARM_ERRATA_798181 if SMP
>>>
>>>  config ARCH_R8A7778
>>>         bool "R-Car M1A (R8A77781)"
>>> @@ -82,20 +84,24 @@ config ARCH_R8A7779
>>>  config ARCH_R8A7790
>>>         bool "R-Car H2 (R8A77900)"
>>>         select ARCH_RCAR_GEN2
>>> +       select ARM_ERRATA_798181 if SMP
>>>         select I2C
>>
>> Thanks for your help.
>>
>> I'm probably misunderstanding what this patch does and how the errata
>> effects the system, but the commit message says CA15 cores. The above
>> R-Car Gen1 and r8a7740 SoCs are not using CA15 - instead they use CA9.
>> Not sure if the errata still applies though.
>
> Please don't become misled by the @@ context ;-)

Ouch, right... Sorry for the noise. The patch looks good, please proceed.

Thanks,

/ magnus



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