[PATCH] arm: dts: socfpga: l2c-310 full line of zeros error @kernel boot

[Dinh Nguyen <dinguyen@kernel.org>]

On 6/10/20 8:23 AM, Marek Vasut wrote:
> On 6/10/20 3:21 PM, Nico Becker wrote:
>> Am 10.06.2020 um 15:19 schrieb Marek Vasut:
>>> On 6/10/20 3:14 PM, Nico Becker wrote:
>>>> if i remove the arm,shared-override option in the dts file,
>>>> the kernel boot without an error.
>>>> With the option the kernel boots with the following error:
>>>> dmesg --level=err
>>>> L2C-310: enabling full line of zeros but not enabled in Cortex-A9
>>>>
>>>> i ve no idea why the parameter have an effect on that. i try several
>>>> kernels, allays the same behavior.
>>>>
>>>>
>>>> diff --git a/arch/arm/dts/socfpga.dtsi b/arch/arm/dts/socfpga.dtsi
>>>> index eda558f2fe..c2173416c7 100644
>>>> --- a/arch/arm/dts/socfpga.dtsi
>>>> +++ b/arch/arm/dts/socfpga.dtsi
>>>> @@ -719,7 +719,6 @@
>>>> ????? ??? ??? arm,data-latency = <2 1 1>;
>>>> ????? ??? ??? prefetch-data = <1>;
>>>> ????? ??? ??? prefetch-instr = <1>;
>>>> -??? ??? ??? arm,shared-override;
>>>> ????? ??? ??? arm,double-linefill = <1>;
>>>> ????? ??? ??? arm,double-linefill-incr = <0>;
>>>> ????? ??? ??? arm,double-linefill-wrap = <1>;
>>>>
>>> Do you use latest u-boot/master or some older version ? Which one?
>>
>> sorry, i forget it.
>>
>> i use v2020.01
> 
> Should be OK I think. Hmmmmm, I suspect this is another fun with the
> ACTLR/CPACR registers, like 937db7188e3a5ab8f802eff9b57854189379667a .
> Ley, any ideas ?
> 

I just tested with

2020.07-rc4-00022-gbe79009f3b along with linux v5.7,

and I no longer see the error.

Dinh