linux-kernel - [PATCH v2 6/6] arm64: dts: imx8qxp-mek: add cm4 and related nodes

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Message-Id: <20241021163437.1007507-6-Frank.Li@nxp.com>
Date: Mon, 21 Oct 2024 12:34:37 -0400
From: Frank Li <Frank.Li@....com>
To: shawnguo2@...h.net
Cc: Frank.Li@....com,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	festevam@...il.com,
	imx@...ts.linux.dev,
	kernel@...gutronix.de,
	krzk+dt@...nel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	robh@...nel.org,
	s.hauer@...gutronix.de,
	shawnguo@...nel.org
Subject: [PATCH v2 6/6] arm64: dts: imx8qxp-mek: add cm4 and related nodes

Add cm4 and related nodes.

Signed-off-by: Frank Li <Frank.Li@....com>
---
Change from v1 to v2
- fix nodename by replace _ with -
- change nodename "gpu_reserved" to "memory"
- use tab instead of spaces for indent.
- remove unneccesary status="okay"
---
 arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
index 6fb454fdc5b5e..b01413f73d643 100644
--- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts
@@ -21,6 +21,20 @@ chosen {
 		stdout-path = &lpuart0;
 	};
 
+	imx8x_cm4: imx8x-cm4 {
+		compatible = "fsl,imx8qxp-cm4";
+		mbox-names = "tx", "rx", "rxdb";
+		mboxes = <&lsio_mu5 0 1
+			  &lsio_mu5 1 1
+			  &lsio_mu5 3 1>;
+		memory-region = <&vdevbuffer>, <&vdev0vring0>, <&vdev0vring1>,
+				<&vdev1vring0>, <&vdev1vring1>, <&rsc_table>;
+		power-domains = <&pd IMX_SC_R_M4_0_PID0>,
+				<&pd IMX_SC_R_M4_0_MU_1A>;
+		fsl,entry-address = <0x34fe0000>;
+		fsl,resource-id = <IMX_SC_R_M4_0_PID0>;
+	};
+
 	memory@...00000 {
 		device_type = "memory";
 		reg = <0x00000000 0x80000000 0 0x40000000>;
@@ -85,6 +99,48 @@ reg_usb_otg1_vbus: regulator-usbotg1-vbus {
 		enable-active-high;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		vdev0vring0: memory@...00000 {
+			reg = <0 0x90000000 0 0x8000>;
+			no-map;
+		};
+
+		vdev0vring1: memory@...08000 {
+			reg = <0 0x90008000 0 0x8000>;
+			no-map;
+		};
+
+		vdev1vring0: memory@...10000 {
+			reg = <0 0x90010000 0 0x8000>;
+			no-map;
+		};
+
+		vdev1vring1: memory@...18000 {
+			reg = <0 0x90018000 0 0x8000>;
+			no-map;
+		};
+
+		rsc_table: memory@...ff000 {
+			reg = <0 0x900ff000 0 0x1000>;
+			no-map;
+		};
+
+		vdevbuffer: memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x90400000 0 0x100000>;
+			no-map;
+		};
+
+		gpu_reserved: memory@...000000 {
+			no-map;
+			reg = <0x8 0x80000000 0 0x10000000>;
+		};
+	};
+
 	sound-bt-sco {
 		compatible = "simple-audio-card";
 		simple-audio-card,bitclock-inversion;
@@ -405,6 +461,10 @@ &lpuart3 {
 	status = "okay";
 };
 
+&lsio_mu5 {
+	status = "okay";
+};
+
 &mu_m0 {
 	status = "okay";
 };
-- 
2.34.1