linux-kernel - Re: [PATCH v16 6/7] arm64: dts: imx8ulp: add secure enclave node

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Message-ID: <Z/f2E4k2cTp9IOrY@lizhi-Precision-Tower-5810>
Date: Thu, 10 Apr 2025 12:47:15 -0400
From: Frank Li <Frank.li@....com>
To: Pankaj Gupta <pankaj.gupta@....com>
Cc: Jonathan Corbet <corbet@....net>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v16 6/7] arm64: dts: imx8ulp: add secure enclave node

On Wed, Apr 09, 2025 at 05:07:47PM +0530, Pankaj Gupta wrote:
> Add support for NXP secure enclave called EdgeLock Enclave firmware (se-fw)
> for imx8ulp-evk.
>
> Add label sram0 for sram@...1f000 and add secure-enclave node
>
> Signed-off-by: Pankaj Gupta <pankaj.gupta@....com>

Reviewed-by: Frank Li <Frank.Li@....com>

>
> changes from v15 to v16
> - commit message body is wrapped arround 75.
>
> Note: copied the change logs for v14 to v15, to cover letter.
> ---
>  arch/arm64/boot/dts/freescale/imx8ulp.dtsi | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> index 2562a35286c2..05db47668b7e 100644
> --- a/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8ulp.dtsi
> @@ -1,6 +1,6 @@
>  // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>  /*
> - * Copyright 2021 NXP
> + * Copyright 2021, 2025 NXP
>   */
>
>  #include <dt-bindings/clock/imx8ulp-clock.h>
> @@ -154,7 +154,7 @@ sosc: clock-sosc {
>  		#clock-cells = <0>;
>  	};
>
> -	sram@...1f000 {
> +	sram0: sram@...1f000 {
>  		compatible = "mmio-sram";
>  		reg = <0x0 0x2201f000 0x0 0x1000>;
>
> @@ -186,6 +186,13 @@ scmi_sensor: protocol@15 {
>  				#thermal-sensor-cells = <1>;
>  			};
>  		};
> +
> +		hsm0: secure-enclave {
> +			 compatible = "fsl,imx8ulp-se-ele-hsm";
> +			 mbox-names = "tx", "rx";
> +			 mboxes = <&s4muap 0 0>, <&s4muap 1 0>;
> +			 sram = <&sram0>;
> +		 };
>  	};
>
>  	cm33: remoteproc-cm33 {
>
> --
> 2.43.0
>