[PATCH 4/8] ARM: l2x0: add arm,ecc-enable property for aurora

Chris Packham Chris.Packham at alliedtelesis.co.nz
Sun Jul 2 15:02:05 PDT 2017


On 01/07/17 03:01, Russell King - ARM Linux wrote:
> On Fri, Jun 30, 2017 at 04:51:02PM +0200, Jan Luebbe wrote:
>> From: Chris Packham <chris.packham at alliedtelesis.co.nz>
>>
>> The aurora cache on the Marvell Armada-XP SoC supports ECC protection
>> for the L2 data arrays. Add a "arm,ecc-enable" device tree property
>> which can be used to enable this.
>>
>> Signed-off-by: Chris Packham <chris.packham at alliedtelesis.co.nz>
>> [jlu at pengutronix.de: use aurora specific define AURORA_ACR_ECC_EN]
>> Signed-off-by: Jan Luebbe <jlu at pengutronix.de>
>> ---
>>   Documentation/devicetree/bindings/arm/l2c2x0.txt | 2 ++
>>   arch/arm/mm/cache-l2x0.c                         | 7 +++++++
>>   2 files changed, 9 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/l2c2x0.txt b/Documentation/devicetree/bindings/arm/l2c2x0.txt
>> index d9650c1788f4..6316e673307a 100644
>> --- a/Documentation/devicetree/bindings/arm/l2c2x0.txt
>> +++ b/Documentation/devicetree/bindings/arm/l2c2x0.txt
>> @@ -76,6 +76,8 @@ Optional properties:
>>     specified to indicate that such transforms are precluded.
>>   - arm,parity-enable : enable parity checking on the L2 cache (L220 or PL310).
>>   - arm,parity-disable : disable parity checking on the L2 cache (L220 or PL310).
>> +- arm,ecc-enable : enable ECC protection on the L2 cache
>> +- arm,ecc-disable : disable ECC protection on the L2 cache
> 
> Why should this be prefixed by a vendor of "arm" ?
> 

I was following the parity-enable example. But I'm guessing this should 
either be "aurora" or "marvell" any preference?





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