linux-kernel - [PATCH 9/9] arm64: dts: apple: t8015: Add CPU caches

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Message-Id: <20250220-caches-v1-9-2c7011097768@gmail.com>
Date: Thu, 20 Feb 2025 20:21:50 +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 9/9] arm64: dts: apple: t8015: Add CPU caches

Add information about CPU caches in Apple A11 SoC.

Signed-off-by: Nick Chan <towinchenmi@...il.com>
---
 arch/arm64/boot/dts/apple/t8015.dtsi | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t8015.dtsi b/arch/arm64/boot/dts/apple/t8015.dtsi
index b68647bebd20782ba7a125e670b3264c184b62cd..138073dbac3c5a3ec495b078b3714cf800b471dd 100644
--- a/arch/arm64/boot/dts/apple/t8015.dtsi
+++ b/arch/arm64/boot/dts/apple/t8015.dtsi
@@ -63,6 +63,9 @@ cpu_e0: cpu@0 {
 			capacity-dmips-mhz = <633>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x8000>;
+			d-cache-size = <0x8000>;
 		};
 
 		cpu_e1: cpu@1 {
@@ -74,6 +77,9 @@ cpu_e1: cpu@1 {
 			capacity-dmips-mhz = <633>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x8000>;
+			d-cache-size = <0x8000>;
 		};
 
 		cpu_e2: cpu@2 {
@@ -85,6 +91,9 @@ cpu_e2: cpu@2 {
 			capacity-dmips-mhz = <633>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x8000>;
+			d-cache-size = <0x8000>;
 		};
 
 		cpu_e3: cpu@3 {
@@ -96,6 +105,9 @@ cpu_e3: cpu@3 {
 			capacity-dmips-mhz = <633>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache_0>;
+			i-cache-size = <0x8000>;
+			d-cache-size = <0x8000>;
 		};
 
 		cpu_p0: cpu@...04 {
@@ -107,6 +119,9 @@ cpu_p0: cpu@...04 {
 			capacity-dmips-mhz = <1024>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache_1>;
+			i-cache-size = <0x10000>;
+			d-cache-size = <0x10000>;
 		};
 
 		cpu_p1: cpu@...05 {
@@ -118,6 +133,23 @@ cpu_p1: cpu@...05 {
 			capacity-dmips-mhz = <1024>;
 			enable-method = "spin-table";
 			device_type = "cpu";
+			next-level-cache = <&l2_cache_1>;
+			i-cache-size = <0x10000>;
+			d-cache-size = <0x10000>;
+		};
+
+		l2_cache_0: l2-cache-0 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x100000>;
+		};
+
+		l2_cache_1: l2-cache-1 {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x800000>;
 		};
 	};
 

-- 
2.48.1