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:
 <PAXPR04MB8459A927FC2DDC583D41D2B88845A@PAXPR04MB8459.eurprd04.prod.outlook.com>
Date: Fri, 27 Jun 2025 03:21:15 +0000
From: Peng Fan <peng.fan@....com>
To: Frank Li <frank.li@....com>, "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"
	<linux-remoteproc@...r.kernel.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, "imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v3 5/5] arm64: dts: imx95-19x19-evk: Add CM7 nodes and
 vdev related memory regions

> 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..70f000b1c4032a449
> cbf9ceb746c16c9f3062a61 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

Oops! I will fix it. BTW: 
I will wait for remoteproc maintainers to check patch 1,2,3 to see
whether I need post V4 for the whole patchset.

Thanks,
Peng.

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