linux-kernel - [PATCH v4 9/9] arm64: dts: apple: t600x: Add SMC node

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Message-Id: <20250503-smc-6-15-v4-9-500b9b6546fc@svenpeter.dev>
Date: Sat, 03 May 2025 10:06:56 +0000
From: Sven Peter via B4 Relay <devnull+sven.svenpeter.dev@...nel.org>
To: Sven Peter <sven@...npeter.dev>, Janne Grunau <j@...nau.net>, 
 Alyssa Rosenzweig <alyssa@...enzweig.io>, Neal Gompa <neal@...pa.dev>, 
 Hector Martin <marcan@...can.st>, Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Sebastian Reichel <sre@...nel.org>, 
 Lee Jones <lee@...nel.org>, Marc Zyngier <maz@...nel.org>, 
 "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
Cc: asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: [PATCH v4 9/9] arm64: dts: apple: t600x: Add SMC node

From: Hector Martin <marcan@...can.st>

Signed-off-by: Hector Martin <marcan@...can.st>
Signed-off-by: Sven Peter <sven@...npeter.dev>
---
 arch/arm64/boot/dts/apple/t600x-die0.dtsi | 35 +++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t600x-die0.dtsi b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
index 110bc6719512e334e04b496fb157cb4368679957..4993a8ace87b2fc7e645b08c19fcd9b0c21896aa 100644
--- a/arch/arm64/boot/dts/apple/t600x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t600x-die0.dtsi
@@ -24,6 +24,41 @@ aic: interrupt-controller@...100000 {
 		power-domains = <&ps_aic>;
 	};
 
+	smc: smc@...400000 {
+		compatible = "apple,t6000-smc", "apple,smc";
+		reg = <0x2 0x90400000 0x0 0x4000>,
+			<0x2 0x91e00000 0x0 0x100000>;
+		reg-names = "smc", "sram";
+		mboxes = <&smc_mbox>;
+
+		smc_gpio: gpio {
+			compatible = "apple,smc-gpio";
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+
+		smc_reboot: reboot {
+			compatible = "apple,smc-reboot";
+			nvmem-cells = <&shutdown_flag>, <&boot_stage>,
+				<&boot_error_count>, <&panic_count>, <&pm_setting>;
+			nvmem-cell-names = "shutdown_flag", "boot_stage",
+				"boot_error_count", "panic_count", "pm_setting";
+		};
+	};
+
+	smc_mbox: mbox@...408000 {
+		compatible = "apple,t6000-asc-mailbox", "apple,asc-mailbox-v4";
+		reg = <0x2 0x90408000 0x0 0x4000>;
+		interrupt-parent = <&aic>;
+		interrupts = <AIC_IRQ 0 754 IRQ_TYPE_LEVEL_HIGH>,
+			<AIC_IRQ 0 755 IRQ_TYPE_LEVEL_HIGH>,
+			<AIC_IRQ 0 756 IRQ_TYPE_LEVEL_HIGH>,
+			<AIC_IRQ 0 757 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "send-empty", "send-not-empty",
+			"recv-empty", "recv-not-empty";
+		#mbox-cells = <0>;
+	};
+
 	pinctrl_smc: pinctrl@...820000 {
 		compatible = "apple,t6000-pinctrl", "apple,pinctrl";
 		reg = <0x2 0x90820000 0x0 0x4000>;

-- 
2.34.1