linux-kernel - Re: [PATCH v2 4/5] arm64: dts: amlogic: s7: add ao secure node

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Message-ID: <d6db1166-ea2c-46aa-beeb-218a54e65eb7@linaro.org>
Date: Tue, 18 Nov 2025 08:58:41 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: xianwei.zhao@...ogic.com, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Kevin Hilman <khilman@...libre.com>,
 Jerome Brunet <jbrunet@...libre.com>,
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/5] arm64: dts: amlogic: s7: add ao secure node

On 11/18/25 06:59, Xianwei Zhao via B4 Relay wrote:
> From: Xianwei Zhao <xianwei.zhao@...ogic.com>
> 
> Add node for board info registers, which allows getting SoC family and
> board revision.
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
> ---
>   arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi
> index d0b63d3fc953..dd7e3de2a53d 100644
> --- a/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi
> @@ -221,6 +221,14 @@ gpiocc: gpio@300 {
>   					gpio-ranges = <&periphs_pinctrl 0 (AMLOGIC_GPIO_CC<<8) 2>;
>   				};
>   			};
> +
> +			ao-secure@...20 {
> +				compatible = "amlogic,s7-ao-secure",
> +					     "amlogic,meson-gx-ao-secure",
> +					     "syscon";
> +				reg = <0x0 0x10220 0x0 0x140>;
> +				amlogic,has-chip-id;
> +			};
>   		};
>   	};
>   };
> 

Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>