[PATCH v1 03/18] arm64: dts: imx8mq-evk: add reserve memory node for CMA region

[Benjamin Gaignard]

Define allocation range for the default CMA region.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
Signed-off-by: Adrian Ratiu <adrian.ratiu@xxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index 85b045253a0e..047dfd4a1ffd 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -21,6 +21,21 @@ memory@40000000 {
 		reg = <0x00000000 0x40000000 0 0xc0000000>;
 	};
 
+	resmem: reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* global autoconfigured region for contiguous allocations */
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			size = <0 0x3c000000>;
+			alloc-ranges = <0 0x40000000 0 0x40000000>;
+			linux,cma-default;
+		};
+	};
+
 	pcie0_refclk: pcie0-refclk {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
-- 
2.25.1