linux-kernel - Re: [PATCH v3 5/5] arm64: dts: imx95-19x19-evk: Add CM7 nodes and vdev related memory regions

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Message-ID: <aF2W+OG8HhB7W7Ut@lizhi-Precision-Tower-5810>
Date: Thu, 26 Jun 2025 14:52:40 -0400
From: Frank Li <Frank.li@....com>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
	Mathieu Poirier <mathieu.poirier@...aro.org>,
	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>,
	Daniel Baluta <daniel.baluta@....com>,
	Iuliana Prodan <iuliana.prodan@....com>,
	linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH v3 5/5] arm64: dts: imx95-19x19-evk: Add CM7 nodes and
 vdev related memory regions

On Wed, Jun 25, 2025 at 10:23:31AM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
>
> Add CM7 nodes, vdev related memory regions for remoteproc.
> Enable MU7.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 45 +++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> index 6886ea7666550605d6c2aa3d81ff270164e5796f..70f000b1c4032a449cbf9ceb746c16c9f3062a61 100644
> --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> @@ -75,6 +75,37 @@ linux_cma: linux,cma {
>  			linux,cma-default;
>  			reusable;
>  		};
> +
> +		vdev0vring0: memory@...00000 {
> +			reg = <0 0x88000000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev0vring1: memory@...08000 {
> +			reg = <0 0x88008000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev1vring0: memory@...10000 {
> +			reg = <0 0x88010000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		vdev1vring1: memory@...18000 {
> +			reg = <0 0x88018000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		rsc_table: memory@...20000 {
> +			reg = <0 0x88220000 0 0x1000>;
> +			no-map;
> +		};
> +
> +		vdevbuffer: memory@...20000 {
> +			compatible = "shared-dma-pool";
> +			reg = <0 0x88020000 0 0x100000>;
> +			no-map;
> +		};
>  	};
>
>  	reg_3p3v: regulator-3p3v {
> @@ -202,6 +233,20 @@ sound-wm8962 {
>  				"IN3R", "AMIC",
>  				"IN1R", "AMIC";
>  	};
> +
> +	remoteproc-cm7 {
> +		compatible = "fsl,imx95-cm7";
> +		mbox-names = "tx", "rx", "rxdb";
> +		mboxes = <&mu7 0 1>,
> +			 <&mu7 1 1>,
> +			 <&mu7 3 1>;
> +		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
> +				<&vdev1vring0>, <&vdev1vring1>, <&rsc_table>;
> +	};
> +};
> +
> +&mu7 {
> +	status = "okay";
>  };

can you keep &mu7 as order, at least it should be after &enetc_port0

Frank
>
>  &enetc_port0 {
>
> --
> 2.37.1
>