[U-Boot] [PATCH v3] armv8: errata: Implement workaround for Cortex-A53 Erratum 855873

Michal Simek michal.simek at xilinx.com
Fri Jan 12 09:12:21 UTC 2018


On 11.1.2018 20:36, York Sun wrote:
> On 12/27/2017 09:20 PM, Alison Wang wrote:
>> 855873: An eviction might overtake a cache clean operation
>> Workaround: The erratum can be avoided by upgrading cache clean by
>> address operations to cache clean and invalidate operations. For
>> Cortex-A53 r0p3 and later release, this can be achieved by setting
>> CPUACTLR.ENDCCASCI to 1.
>>
>> This patch is to implement the workaround for this erratum.
>>
>> Signed-off-by: Alison Wang <alison.wang at nxp.com>
>> ---
>> Changes in v3:
>> - Check the major revision of Cortex-A53.
>>
>> Changes in v2:
>> - Check the revision of Cortex-A53 and apply the erratum to r0p3 and later release.
>> - Fix the mistake in the commit description.
>>
> 
> Applied to fsl-qoriq master. Thanks.

Just a note if this is just for a53 should we consider to place these
Kconfigs to arch/arm/cpu/armv8/Kconfig?

M



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