[PATCH v5 3/3] arm64: dts: freescale: add DT overlay for MX95-15x15-FRDM RPMSG usage

[Frank.Li@oss.nxp.com]

From: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>

Add RPMSG DT overlay for the MX95-15x15-FRDM board. This overlay is meant
to be used with the mx95evkrpmsg system manager configuration for
remoteproc and audio over rpmsg-usecases.

Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
 arch/arm64/boot/dts/freescale/Makefile             |  3 +
 .../boot/dts/freescale/imx95-15x15-frdm-rpmsg.dtso | 81 ++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index a80cccf34eb56..f3b19f3b1488e 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -960,6 +960,7 @@ dtb-$(CONFIG_ARCH_MXC) += imx943-evk-mqs.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-ab2.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-frdm.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-frdm-rpmsg.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-evk-sof.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-19x19-frdm-pro.dtb
@@ -984,6 +985,8 @@ dtb-$(CONFIG_ARCH_MXC) += imx95-verdin-wifi-mallow.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-verdin-wifi-yavia.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx95-verdin-wifi-zinnia.dtb
 
+imx95-15x15-frdm-rpmsg-dtbs = imx95-15x15-frdm.dtb imx95-15x15-frdm-rpmsg.dtbo
+
 imx95-15x15-evk-pcie-dtbs += imx95-15x15-evk.dtb imx-m2-pcie.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx95-15x15-evk-pcie.dtb
 
diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-frdm-rpmsg.dtso b/arch/arm64/boot/dts/freescale/imx95-15x15-frdm-rpmsg.dtso
new file mode 100644
index 0000000000000..c3deb277edabf
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx95-15x15-frdm-rpmsg.dtso
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2026 NXP
+ *
+ * This DT overlay is meant to be used alongside the mx95evkrpmsg SM
+ * configuration for remoteproc and audio over rpmsg.
+ */
+
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	remoteproc-cm7 {
+		compatible = "fsl,imx95-cm7";
+		mboxes = <&mu7 0 1>, <&mu7 1 1>, <&mu7 3 1>;
+		mbox-names = "tx", "rx", "rxdb";
+		memory-region = <&vdev0buffer>,
+				<&vdev0vring0>, <&vdev0vring1>,
+				<&vdev1vring0>, <&vdev1vring1>,
+				<&rsc_table>;
+		memory-region-names = "vdev0buffer",
+				      "vdev0vring0", "vdev0vring1",
+				      "vdev1vring0", "vdev1vring1",
+				      "rsc-table";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+
+		vdev0vring0: memory@88000000 {
+			reg = <0 0x88000000 0 0x8000>;
+			no-map;
+		};
+
+		vdev0vring1: memory@88008000 {
+			reg = <0 0x88008000 0 0x8000>;
+			no-map;
+		};
+
+		vdev1vring0: memory@88010000 {
+			reg = <0 0x88010000 0 0x8000>;
+			no-map;
+		};
+
+		vdev1vring1: memory@88018000 {
+			reg = <0 0x88018000 0 0x8000>;
+			no-map;
+		};
+
+		vdev0buffer: memory@88020000 {
+			compatible = "shared-dma-pool";
+			reg = <0 0x88020000 0 0x100000>;
+			no-map;
+		};
+
+		rsc_table: memory@88220000 {
+			reg = <0 0x88220000 0 0x1000>;
+			no-map;
+		};
+	};
+
+	sound-micfil {
+		status = "disabled";
+	};
+};
+
+&edma1 {
+	/* reserved for M7 */
+	dma-channel-mask = <0x40>;
+};
+
+&edma2 {
+	/* reserved for M7 and V2X */
+	dma-channel-mask = <0xf>;
+};
+
+&micfil {
+	/* reserved for M7 */
+	status = "reserved";
+};

-- 
2.43.0