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From: Anand Moon <linux.amoon@gmail.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Alim Akhtar <alim.akhtar@samsung.com>
Cc: Anand Moon <linux.amoon@gmail.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v1 1/2] ARM: dts: samsung: Add cache information to the Exynos4412 SoCS
Date: Tue, 30 Jul 2024 14:43:18 +0530	[thread overview]
Message-ID: <20240730091322.5741-1-linux.amoon@gmail.com> (raw)

As per the Exynos 4412 user manaual add missing cache information to
the Exynos 4412 SoC.

- Each Cortex-A9 core has 32KB of L1 instruction cache available and
	32KB of L1 data cache available.
- Along with 1M unified L2 cache.

Features of ARM Cortex-A9
- Optimized L1 caches for system performance and power.
- Integrated 1 MB L2 Cache using standard compiled RAMs.

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
 arch/arm/boot/dts/samsung/exynos4412.dtsi | 37 +++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/samsung/exynos4412.dtsi b/arch/arm/boot/dts/samsung/exynos4412.dtsi
index dcbe0ce6180f..d133c8a8e8d4 100644
--- a/arch/arm/boot/dts/samsung/exynos4412.dtsi
+++ b/arch/arm/boot/dts/samsung/exynos4412.dtsi
@@ -48,6 +48,13 @@ cpu0: cpu@a00 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu0_opp_table>;
 			#cooling-cells = <2>; /* min followed by max */
+			d-cache-line-size = <32>;
+			d-cache-size = <0x8000>;
+			d-cache-sets = <32>;
+			i-cache-line-size = <32>;
+			i-cache-size = <0x8000>;
+			i-cache-sets = <32>;
+			next-level-cache = <&L2>;
 		};
 
 		cpu1: cpu@a01 {
@@ -58,6 +65,13 @@ cpu1: cpu@a01 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu0_opp_table>;
 			#cooling-cells = <2>; /* min followed by max */
+			d-cache-line-size = <32>;
+			d-cache-size = <0x8000>;
+			d-cache-sets = <32>;
+			i-cache-line-size = <32>;
+			i-cache-size = <0x8000>;
+			i-cache-sets = <32>;
+			next-level-cache = <&L2>;
 		};
 
 		cpu2: cpu@a02 {
@@ -68,6 +82,13 @@ cpu2: cpu@a02 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu0_opp_table>;
 			#cooling-cells = <2>; /* min followed by max */
+			d-cache-line-size = <32>;
+			d-cache-size = <0x8000>;
+			d-cache-sets = <32>;
+			i-cache-line-size = <32>;
+			i-cache-size = <0x8000>;
+			i-cache-sets = <32>;
+			next-level-cache = <&L2>;
 		};
 
 		cpu3: cpu@a03 {
@@ -78,6 +99,22 @@ cpu3: cpu@a03 {
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu0_opp_table>;
 			#cooling-cells = <2>; /* min followed by max */
+			d-cache-line-size = <32>;
+			d-cache-size = <0x8000>;
+			d-cache-sets = <32>;
+			i-cache-line-size = <32>;
+			i-cache-size = <0x8000>;
+			i-cache-sets = <32>;
+			next-level-cache = <&L2>;
+		};
+
+		L2: l2-cache {
+			compatible = "cache";
+			cache-level = <2>;
+			cache-unified;
+			cache-size = <0x100000>; /* L2, 1M */
+			cache-line-size = <64>;
+			cache-sets = <512>;
 		};
 	};
 

base-commit: dc1c8034e31b14a2e5e212104ec508aec44ce1b9
-- 
2.44.0



             reply	other threads:[~2024-07-30  9:14 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-30  9:13 Anand Moon [this message]
2024-07-30  9:13 ` [PATCH v1 2/2] ARM: dts: samsung: Add cache information to the Exynos542x SoC Anand Moon
2024-07-30 11:44   ` Marek Szyprowski
2024-07-30 12:06     ` Anand Moon
2024-07-30 12:27       ` Krzysztof Kozlowski
2024-07-30 13:20         ` Anand Moon
2024-07-30 13:23           ` Krzysztof Kozlowski
2024-07-30 15:02             ` Anand Moon
2025-09-09 13:59               ` Anand Moon
2025-09-09 20:22                 ` Henrik Grimler
2025-09-10  7:16                 ` Krzysztof Kozlowski
2025-09-10  9:14                   ` Anand Moon

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