diff mbox series

[V2,2/4] arm64: dts: imx93: add cma area for i.MX93 11x11 EVK

Message ID 20230625122549.4066027-3-peng.fan@oss.nxp.com
State New
Headers show
Series arm64: dts: imx93: add thermal/cma/cm33 node | expand

Commit Message

Peng Fan (OSS) June 25, 2023, 12:25 p.m. UTC 
From: Peng Fan <peng.fan@nxp.com>

Add CMA region for DMA usage.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
index c50f46f06f62..359ae86f4e7e 100644
--- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
@@ -15,6 +15,20 @@  chosen {
 		stdout-path = &lpuart1;
 	};
 
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		linux,cma {
+			compatible = "shared-dma-pool";
+			reusable;
+			alloc-ranges = <0 0x80000000 0 0x40000000>;
+			size = <0 0x10000000>;
+			linux,cma-default;
+		};
+	};
+
 	reg_vref_1v8: regulator-adc-vref {
 		compatible = "regulator-fixed";
 		regulator-name = "vref_1v8";