From 81cee15f5f645ee7a68812baa55d2a04e820c189 Mon Sep 17 00:00:00 2001
From: Dongjin Kim <tobetter@gmail.com>
Date: Mon, 9 Dec 2019 14:17:28 +0900
Subject: [PATCH] ODOROID-C4/N2: arm64/dts: add 'clear-map' flag to clean up
 the memory on booting

drivers/base/dma-contiguous.c:
	...
	#ifdef CONFIG_AMLOGIC_CMA
		if (of_get_flat_dt_prop(node, "clear-map", NULL))
			cma_init_clear(cma, 1);
	#endif
	...

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: I59cf826e35ae2cc9a6d0bcd8d76c2466cc3e1554
---
 arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts | 2 ++
 arch/arm64/boot/dts/amlogic/meson64_odroidn2.dts | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts b/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts
index a05afcb3c77a..21434881f930 100644
--- a/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts
+++ b/arch/arm64/boot/dts/amlogic/meson64_odroidc4.dts
@@ -55,6 +55,7 @@
 			size = <0x0 0x400000>;
 			alignment = <0x0 0x400000>;
 			alloc-ranges = <0x0 0x05000000 0x0 0x400000>;
+			clear-map;
 		};
 
 		secos_reserved:linux,secos {
@@ -115,6 +116,7 @@
 			size = <0x0 0x13400000>;
 			alignment = <0x0 0x400000>;
 			linux,contiguous-region;
+			clear-map;
 		};
 		/* codec shared reserved */
 		codec_mm_reserved:linux,codec_mm_reserved {
diff --git a/arch/arm64/boot/dts/amlogic/meson64_odroidn2.dts b/arch/arm64/boot/dts/amlogic/meson64_odroidn2.dts
index c99ecf6eda34..b8c5c63d7af8 100644
--- a/arch/arm64/boot/dts/amlogic/meson64_odroidn2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson64_odroidn2.dts
@@ -46,6 +46,7 @@
 			size = <0x0 0x400000>;
 			alignment = <0x0 0x400000>;
 			alloc-ranges = <0x0 0x05000000 0x0 0x400000>;
+			clear-map;
 		};
 
 		secos_reserved:linux,secos {
@@ -104,6 +105,7 @@
 			size = <0x0 0x13400000>;
 			alignment = <0x0 0x400000>;
 			linux,contiguous-region;
+			clear-map;
 		};
 		/* codec shared reserved */
 		codec_mm_reserved:linux,codec_mm_reserved {