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

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Message-ID: <aB3_nYoHofJ7wD8L@blossom>
Date: Fri, 9 May 2025 09:14:05 -0400
From: Alyssa Rosenzweig <alyssa@...enzweig.io>
To: sven@...npeter.dev
Cc: Janne Grunau <j@...nau.net>, 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>,
	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: Re: [PATCH v4 7/9] arm64: dts: apple: t8103: Add SMC node

Reviewed-by: Alyssa Rosenzweig <alyssa@...enzweig.io>

Le Sat , May 03, 2025 at 10:06:54AM +0000, Sven Peter via B4 Relay a écrit :
> 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
> 
>