arm64: dts: imx8mn-somdevices.dtsi: Configure memory and allocate less cma memory.

Signed-off-by: Josep Orga <jorga@somdevices.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-somdevices.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-somdevices.dtsi
index cbd1250..c9b0403 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn-somdevices.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-somdevices.dtsi
@@ -29,7 +29,7 @@
 
        memory@40000000 {
                device_type = "memory";
-               reg = <0x0 0x40000000 0 0x80000000>;
+               reg = <0x0 0x40000000 0 0x20000000>;
        };
 
        modem_reset: modem-reset {
@@ -291,6 +291,17 @@
        };
 };
 
+&resmem {
+       /* global autoconfigured region for contiguous allocations */
+       linux,cma {
+               compatible = "shared-dma-pool";
+               reusable;
+               size = <0 0xA000000>;
+               alloc-ranges = <0 0x40000000 0 0x40000000>;
+               linux,cma-default;
+       };
+};
+
 &sai5 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_sai5>;