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

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Message-Id: <20250625-imx95-rproc-1-v3-5-699031f5926d@nxp.com>
Date: Wed, 25 Jun 2025 10:23:31 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: 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>, Frank Li <frank.li@....com>, 
 Daniel Baluta <daniel.baluta@....com>, 
 Iuliana Prodan <iuliana.prodan@....com>
Cc: 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: [PATCH v3 5/5] arm64: dts: imx95-19x19-evk: Add CM7 nodes and vdev
 related memory regions

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";
 };
 
 &enetc_port0 {

-- 
2.37.1