linux-kernel - Re: [PATCH v2 01/23] arm64: dts: Update cache properties for amazon

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Message-ID: <99644abd-337e-e4a8-4c29-a1c55be489b1@arm.com>
Date:   Thu, 12 Jan 2023 09:34:57 +0100
From:   Pierre Gondois <pierre.gondois@....com>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Tsahee Zidenberg <tsahee@...apurnalabs.com>,
        Antoine Tenart <atenart@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 01/23] arm64: dts: Update cache properties for amazon

(subset for cc list)
Hello,
Just a reminder in case the patch was forgotten,
Regards,
Pierre

On 11/7/22 16:56, Pierre Gondois wrote:
> The DeviceTree Specification v0.3 specifies that the cache node
> 'compatible' and 'cache-level' properties are 'required'. Cf.
> s3.8 Multi-level and Shared Cache Nodes
> The 'cache-unified' property should be present if one of the
> properties for unified cache is present ('cache-size', ...).
> 
> Update the Device Trees accordingly.
> 
> Signed-off-by: Pierre Gondois <pierre.gondois@....com>
> ---
>   arch/arm64/boot/dts/amazon/alpine-v3.dtsi | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amazon/alpine-v3.dtsi b/arch/arm64/boot/dts/amazon/alpine-v3.dtsi
> index 73a352ea8fd5..ba7e56dc85db 100644
> --- a/arch/arm64/boot/dts/amazon/alpine-v3.dtsi
> +++ b/arch/arm64/boot/dts/amazon/alpine-v3.dtsi
> @@ -246,6 +246,7 @@ cpu@303 {
>   
>   		cluster0_l2: cache@0 {
>   			compatible = "cache";
> +			cache-unified;
>   			cache-size = <0x200000>;
>   			cache-line-size = <64>;
>   			cache-sets = <2048>;
> @@ -254,6 +255,7 @@ cluster0_l2: cache@0 {
>   
>   		cluster1_l2: cache@100 {
>   			compatible = "cache";
> +			cache-unified;
>   			cache-size = <0x200000>;
>   			cache-line-size = <64>;
>   			cache-sets = <2048>;
> @@ -262,6 +264,7 @@ cluster1_l2: cache@100 {
>   
>   		cluster2_l2: cache@200 {
>   			compatible = "cache";
> +			cache-unified;
>   			cache-size = <0x200000>;
>   			cache-line-size = <64>;
>   			cache-sets = <2048>;
> @@ -270,6 +273,7 @@ cluster2_l2: cache@200 {
>   
>   		cluster3_l2: cache@300 {
>   			compatible = "cache";
> +			cache-unified;
>   			cache-size = <0x200000>;
>   			cache-line-size = <64>;
>   			cache-sets = <2048>;