linux-kernel - [PATCH 2/9] arm64: dts: apple: t7000: Add CPU caches

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Message-Id: <20250220-caches-v1-2-2c7011097768@gmail.com>
Date: Thu, 20 Feb 2025 20:21:43 +0800
From: Nick Chan <towinchenmi@...il.com>
To: Sven Peter <sven@...npeter.dev>, Janne Grunau <j@...nau.net>, 
 Alyssa Rosenzweig <alyssa@...enzweig.io>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Nick Chan <towinchenmi@...il.com>
Subject: [PATCH 2/9] arm64: dts: apple: t7000: Add CPU caches

Add information about CPU caches in Apple A8 SoC.

Signed-off-by: Nick Chan <towinchenmi@...il.com>
---
 arch/arm64/boot/dts/apple/t7000.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t7000.dtsi b/arch/arm64/boot/dts/apple/t7000.dtsi
index 32cac8c30e62d657079dbf32aece8af0fd9cef38..229ebd78c9d14609c30cdd011d1ec59847c846f8 100644
--- a/arch/arm64/boot/dts/apple/t7000.dtsi
+++ b/arch/arm64/boot/dts/apple/t7000.dtsi
@@ -37,6 +37,9 @@ cpu0: cpu@0 {
 			operating-points-v2 = <&typhoon_opp>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache>;
+			i-cache-size = <0x10000>;
+			d-cache-size = <0x10000>;
 		};
 
 		cpu1: cpu@1 {
@@ -47,6 +50,16 @@ cpu1: cpu@1 {
 			operating-points-v2 = <&typhoon_opp>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache>;
+			i-cache-size = <0x10000>;
+			d-cache-size = <0x10000>;
+		};
+
+		l2_cache: l2-cache {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x100000>;
 		};
 	};
 

-- 
2.48.1