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Fri, 05 Sep 2025 04:59:02 -0700 (PDT) Received: from rockpi-5b ([45.112.0.216]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-772396d2b97sm19633049b3a.67.2025.09.05.04.58.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Sep 2025 04:59:01 -0700 (PDT) From: Anand Moon To: Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-kernel@lists.infradead.org (moderated list:ARM/Amlogic Meson SoC support), linux-amlogic@lists.infradead.org (open list:ARM/Amlogic Meson SoC support), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Cc: Anand Moon Subject: [PATCH v3 02/11] arm64: dts: amlogic: Add cache information to the Amlogic SM1 SoC Date: Fri, 5 Sep 2025 17:27:33 +0530 Message-ID: <20250905115836.7549-3-linux.amoon@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250905115836.7549-1-linux.amoon@gmail.com> References: <20250905115836.7549-1-linux.amoon@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250905_045903_478982_B501F6F1 X-CRM114-Status: GOOD ( 10.73 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org As per S905X3 datasheet add missing cache information to the Amlogic SM1 SoC. ARM Cortex-A55 CPU uses unified L3 cache instead of L2 cache. - Each Cortex-A55 core has 32KB of L1 instruction cache available and 32KB of L1 data cache available. - Along with 256KB Unified L2 cache. Signed-off-by: Anand Moon --- arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi index 966ebb19cc55f..e5db8ce940620 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi @@ -55,6 +55,12 @@ cpu0: cpu@0 { compatible = "arm,cortex-a55"; reg = <0x0 0x0>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -64,6 +70,12 @@ cpu1: cpu@1 { compatible = "arm,cortex-a55"; reg = <0x0 0x1>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -73,6 +85,12 @@ cpu2: cpu@2 { compatible = "arm,cortex-a55"; reg = <0x0 0x2>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -82,6 +100,12 @@ cpu3: cpu@3 { compatible = "arm,cortex-a55"; reg = <0x0 0x3>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -90,6 +114,9 @@ l2: l2-cache0 { compatible = "cache"; cache-level = <2>; cache-unified; + cache-size = <0x40000>; /* L2. 256 KB */ + cache-line-size = <64>; + cache-sets = <256>; }; }; -- 2.50.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7C789CA1010 for ; 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Fri, 05 Sep 2025 04:59:02 -0700 (PDT) Received: from rockpi-5b ([45.112.0.216]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-772396d2b97sm19633049b3a.67.2025.09.05.04.58.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Sep 2025 04:59:01 -0700 (PDT) From: Anand Moon To: Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-kernel@lists.infradead.org (moderated list:ARM/Amlogic Meson SoC support), linux-amlogic@lists.infradead.org (open list:ARM/Amlogic Meson SoC support), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list) Cc: Anand Moon Subject: [PATCH v3 02/11] arm64: dts: amlogic: Add cache information to the Amlogic SM1 SoC Date: Fri, 5 Sep 2025 17:27:33 +0530 Message-ID: <20250905115836.7549-3-linux.amoon@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250905115836.7549-1-linux.amoon@gmail.com> References: <20250905115836.7549-1-linux.amoon@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250905_045903_478982_B501F6F1 X-CRM114-Status: GOOD ( 10.73 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As per S905X3 datasheet add missing cache information to the Amlogic SM1 SoC. ARM Cortex-A55 CPU uses unified L3 cache instead of L2 cache. - Each Cortex-A55 core has 32KB of L1 instruction cache available and 32KB of L1 data cache available. - Along with 256KB Unified L2 cache. Signed-off-by: Anand Moon --- arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi index 966ebb19cc55f..e5db8ce940620 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi @@ -55,6 +55,12 @@ cpu0: cpu@0 { compatible = "arm,cortex-a55"; reg = <0x0 0x0>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -64,6 +70,12 @@ cpu1: cpu@1 { compatible = "arm,cortex-a55"; reg = <0x0 0x1>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -73,6 +85,12 @@ cpu2: cpu@2 { compatible = "arm,cortex-a55"; reg = <0x0 0x2>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -82,6 +100,12 @@ cpu3: cpu@3 { compatible = "arm,cortex-a55"; reg = <0x0 0x3>; enable-method = "psci"; + 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>; #cooling-cells = <2>; }; @@ -90,6 +114,9 @@ l2: l2-cache0 { compatible = "cache"; cache-level = <2>; cache-unified; + cache-size = <0x40000>; /* L2. 256 KB */ + cache-line-size = <64>; + cache-sets = <256>; }; }; -- 2.50.1