linux-kernel - [PATCH v3 2/2] arm64: dts: Update cache properties for fds

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Message-Id: <20221123090109.74441-3-pierre.gondois@arm.com>
Date:   Wed, 23 Nov 2022 10:01:04 +0100
From:   Pierre Gondois <pierre.gondois@....com>
To:     linux-kernel@...r.kernel.org
Cc:     Pierre Gondois <pierre.gondois@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Aswani Reddy <aswani.reddy@...sung.com>,
        Shashank Prashar <s.prashar@...sung.com>,
        Arnd Bergmann <arnd@...db.de>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: [PATCH v3 2/2] arm64: dts: Update cache properties for fds

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/tesla/fsd.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/tesla/fsd.dtsi b/arch/arm64/boot/dts/tesla/fsd.dtsi
index f35bc5a288c2..d58d47618c95 100644
--- a/arch/arm64/boot/dts/tesla/fsd.dtsi
+++ b/arch/arm64/boot/dts/tesla/fsd.dtsi
@@ -281,6 +281,8 @@ cpucl2_3: cpu@203 {
 
 		cpucl_l2: l2-cache0 {
 			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
 			cache-size = <0x400000>;
 			cache-line-size = <64>;
 			cache-sets = <4096>;
-- 
2.25.1