Re: [PATCH 06/14] ARM: dts: sun8i: Add cpu0 label to sun8i-h3.dtsi

From: OndÅej Jirman
Date: Fri Jun 24 2016 - 18:52:10 EST


Hello,

comments below.

On 24.6.2016 05:48, Chen-Yu Tsai wrote:
> On Fri, Jun 24, 2016 at 3:20 AM, <megous@xxxxxxxxxx> wrote:
>> From: Ondrej Jirman <megous@xxxxxxxxxx>
>>
>> Add label to the first cpu so that it can be referenced
>> from derived dts files.
>>
>> Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
>> ---
>> arch/arm/boot/dts/sun8i-h3.dtsi | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
>> index 9938972..82faefc 100644
>> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
>> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
>> @@ -52,7 +52,7 @@
>> #address-cells = <1>;
>> #size-cells = <0>;
>>
>> - cpu@0 {
>> + cpu0: cpu@0 {
>> compatible = "arm,cortex-a7";
>> device_type = "cpu";
>> reg = <0>;
>
> Can you also set the cpu clock here? It is part of the SoC
> and does not belong in the board DTS files.

Do you mean operating-points, or something else? Different SBCs will
probably require different combinations of operating points just for
safety's sake, because they have different regulators and [some have
botched] thermal designs, so it might make sense to customize it for
differnt boards, and I don't feel adventurous enough setting it for all
H3 boards out there.

Or is this comment related to the missing cpu clock rate message I see
on every boot?

[ 0.058912] /cpus/cpu@0 missing clock-frequency property

regards,
Ondrej

> Otherwise this one looks good.
>
> ChenYu
>
>> --
>> 2.9.0
>>

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