arm64: dts: define the specific device dma pool for rpmsg

Define the specific device dma pool for iMX8M RPMSG.

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

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts
index 826c7c82a685..bfba884522d1 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk-rpmsg.dts
@@ -22,6 +22,12 @@
 			no-map;
 			reg = <0 0xb8000000 0 0x400000>;
 		};
+
+		rpmsg_dma_reserved:rpmsg_dma@0xb8400000 {
+			compatible = "shared-dma-pool";
+			no-map;
+			reg = <0 0xb8400000 0 0x100000>;
+		};
 	};
 };
 
@@ -46,6 +52,7 @@
 	 */
 	vdev-nums = <1>;
 	reg = <0x0 0xb8000000 0x0 0x10000>;
+	memory-region = <&rpmsg_dma_reserved>;
 	status = "okay";
 };