[PATCH] ARM: dts: vexpress: Support GICC_DIR operations

[Sudeep Holla]

On 12/12/16 17:35, Marc Zyngier wrote:
> [+Sudeep]
> 
> On 10/12/16 20:13, Christoffer Dall wrote:
>> The GICv2 CPU interface registers span across 8K, not 4K as indicated in
>> the DT.  Only the GICC_DIR register is located after the initial 4K
>> boundary, leaving a functional system but without support for separately
>> EOI'ing and deactivating interrupts.
>>
>> After this change the system support split priority drop and interrupt
>> deactivation.
>>
>> Signed-off-by: Christoffer Dall <christoffer.dall at linaro.org>
>> ---
>>  arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
>> index 0205c97..2e0cf39 100644
>> --- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
>> +++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
>> @@ -126,7 +126,7 @@
>>  		#address-cells = <0>;
>>  		interrupt-controller;
>>  		reg = <0 0x2c001000 0 0x1000>,
>> -		      <0 0x2c002000 0 0x1000>,
>> +		      <0 0x2c002000 0 0x2000>,
>>  		      <0 0x2c004000 0 0x2000>,
>>  		      <0 0x2c006000 0 0x2000>;
>>  		interrupts = <1 9 0xf04>;
>>
> 
> Acked-by: Marc Zyngier <marc.zyngier at arm.com>
> 

Thanks Marc, I see couple of other instances of this like tc2 and rtsm
model on arm64. Do they need to be fixed too ? I guess so. If so I will
fixup this to patch add tc1. And add another one for rtsm.

Also I see loads of gic-400 compatible dts(mainly rockchip and renasas)
having just 4k. Are they left like this intentionally ? I remember you
fixing most of the DTS when you found this issue initially.

-- 
Regards,
Sudeep