linux-kernel - [PATCH v4 7/9] arm64: dts: apple: t8103: Add SMC node

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Message-Id: <20250503-smc-6-15-v4-7-500b9b6546fc@svenpeter.dev>
Date: Sat, 03 May 2025 10:06:54 +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 7/9] arm64: dts: apple: t8103: Add SMC node

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

Signed-off-by: Hector Martin <marcan@...can.st>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Reviewed-by: Sven Peter <sven@...npeter.dev>
Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
Signed-off-by: Sven Peter <sven@...npeter.dev>
---
 arch/arm64/boot/dts/apple/t8103.dtsi | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 20faf0c0d80927b2e18dd966a61b5507b322c72f..58270e7d79b07ee98340f140972a6f0d14c86dcb 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -836,6 +836,41 @@ wdt: watchdog@...2b0000 {
 			interrupts = <AIC_IRQ 338 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+		smc: smc@...400000 {
+			compatible = "apple,t8103-smc", "apple,smc";
+			reg = <0x2 0x3e400000 0x0 0x4000>,
+				<0x2 0x3fe00000 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,t8103-asc-mailbox", "apple,asc-mailbox-v4";
+			reg = <0x2 0x3e408000 0x0 0x4000>;
+			interrupt-parent = <&aic>;
+			interrupts = <AIC_IRQ 400 IRQ_TYPE_LEVEL_HIGH>,
+				<AIC_IRQ 401 IRQ_TYPE_LEVEL_HIGH>,
+				<AIC_IRQ 402 IRQ_TYPE_LEVEL_HIGH>,
+				<AIC_IRQ 403 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,t8103-pinctrl", "apple,pinctrl";
 			reg = <0x2 0x3e820000 0x0 0x4000>;

-- 
2.34.1