From: Dong Aisheng <aisheng.dong@nxp.com>
Date: Tue, 24 Dec 2019 10:27:53 +0000 (+0800)
Subject: LF-665-17 arm64: dts: imx8mm: make sure cma do not overlap dma zone
X-Git-Tag: rel_imx_5.10.35_2.0.0-somdevices.0~577^2~2^2~535
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=ac3eb98e0c8365ec2267c9873662fadc0ba2bcf4;p=linux.git

LF-665-17 arm64: dts: imx8mm: make sure cma do not overlap dma zone

After commit 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32"),
ZONE_DMA will contain the lower 1G of memory.
Change the CMA range start or size to ensure it's not overlapped
with dma zone.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index b4e02ff06f06..a1603e7c55ad 100755
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -155,7 +155,7 @@
 			compatible = "shared-dma-pool";
 			reusable;
 			size = <0 0x28000000>;
-			alloc-ranges = <0 0x40000000 0 0x60000000>;
+			alloc-ranges = <0 0x80000000 0 0x40000000>;
 			linux,cma-default;
 		};
 	};