linux-kernel - [PATCH v4 6/8] arm64: dts: amlogic: A5: Add scmi-clk node

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Message-Id: <20251028-a5-clk-v4-6-e62ca0aae243@amlogic.com>
Date: Tue, 28 Oct 2025 17:52:32 +0800
From: Chuan Liu via B4 Relay <devnull+chuan.liu.amlogic.com@...nel.org>
To: Chuan Liu <chuan.liu@...ogic.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Jerome Brunet <jbrunet@...libre.com>, 
 Xianwei Zhao <xianwei.zhao@...ogic.com>, 
 Kevin Hilman <khilman@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-amlogic@...ts.infradead.org, 
 linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 6/8] arm64: dts: amlogic: A5: Add scmi-clk node

From: Chuan Liu <chuan.liu@...ogic.com>

Add scmi-clk device node information for the Amlogic A5 SoC family.

Signed-off-by: Chuan Liu <chuan.liu@...ogic.com>
---
 arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi | 30 +++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi
index 2b12d8284594..a6625508893d 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi
@@ -7,6 +7,8 @@
 #include "amlogic-a5-reset.h"
 #include <dt-bindings/pinctrl/amlogic,pinctrl.h>
 #include <dt-bindings/power/amlogic,a5-pwrc.h>
+#include <dt-bindings/clock/amlogic,a5-scmi-clkc.h>
+
 / {
 	cpus {
 		#address-cells = <2>;
@@ -49,6 +51,34 @@ pwrc: power-controller {
 			#power-domain-cells = <1>;
 		};
 	};
+
+	sram0: sram@...2a000 {
+		compatible = "mmio-sram";
+		reg = <0x0 0xf702a000 0x0 0x100>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x0 0xf702a000 0x100>;
+
+		scmi_buf0: scmi-sram-section@0 {
+			compatible = "arm,scmi-shmem";
+			reg = <0x0 0x100>;
+		};
+	};
+
+	firmware {
+		scmi {
+			compatible = "arm,scmi-smc";
+			arm,smc-id = <0x820000C1>;
+			shmem = <&scmi_buf0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			scmi_clk: protocol@14 {
+				reg = <0x14>;
+				#clock-cells = <1>;
+			};
+		};
+	};
 };
 
 &apb {

-- 
2.42.0