arm64: dts: add the rpmsg support for imx8qm

Add the reserved memory and enable RPMSG.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
index f400197a0266..fa076bd3ca00 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qm-mek.dts
@@ -27,6 +27,66 @@
 		reg = <0x00000000 0x80000000 0 0x40000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		decoder_boot: decoder_boot@0x84000000 {
+			no-map;
+			reg = <0 0x84000000 0 0x2000000>;
+		};
+		encoder_boot: encoder_boot@0x86000000 {
+			no-map;
+			reg = <0 0x86000000 0 0x400000>;
+		};
+		/*
+		 * reserved-memory layout
+		 * 0x8800_0000 ~ 0x8FFF_FFFF is reserved for M4
+		 * Shouldn't be used at A core and Linux side.
+		 *
+		 */
+		m4_reserved: m4@0x88000000 {
+			no-map;
+			reg = <0 0x88000000 0 0x8000000>;
+		};
+		rpmsg_reserved: rpmsg@0x90000000 {
+			no-map;
+			reg = <0 0x90000000 0 0x400000>;
+		};
+		rpmsg_dma_reserved:rpmsg_dma@0x90400000 {
+			compatible = "shared-dma-pool";
+			no-map;
+			reg = <0 0x90400000 0 0x100000>;
+		};
+		decoder_rpc: decoder_rpc@0x92000000 {
+			no-map;
+			reg = <0 0x92000000 0 0x200000>;
+		};
+		encoder_rpc: encoder_rpc@0x92200000 {
+			no-map;
+			reg = <0 0x92200000 0 0x200000>;
+		};
+		dsp_reserved: dsp@0x92400000 {
+			no-map;
+			reg = <0 0x92400000 0 0x2000000>;
+		};
+		encoder_reserved: encoder_reserved@0x94400000 {
+			no-map;
+			reg = <0 0x94400000 0 0x800000>;
+		};
+
+		/* global autoconfigured region for contiguous allocations */
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			size = <0 0x3c000000>;
+			alloc-ranges = <0 0x96000000 0 0x3c000000>;
+			linux,cma-default;
+		};
+
+	};
+
 	reg_usdhc2_vmmc: usdhc2-vmmc {
 		compatible = "regulator-fixed";
 		regulator-name = "SD1_SPWR";
@@ -82,6 +142,16 @@
 	status = "okay";
 };
 
+&rpmsg{
+	/*
+	 * 64K for one rpmsg instance:
+	 */
+	vdev-nums = <2>;
+	reg = <0x0 0x90000000 0x0 0x20000>;
+	memory-region = <&rpmsg_dma_reserved>;
+	status = "okay";
+};
+
 &usbphy1 {
 	status = "okay";
 };