arm64: dts: rockchip: set swiotlb buffer size on rk3399 android board

We don't use swiotlb, so keep the size as small as possible.

Change-Id: I1377f4b31112902a5841eafde094d2d12f48e97c
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
index 1a4f919a42126ac7a87c0164f8f7a3cd6e9f492c..f5e31302ea807f9f8a44d194b4268c4a0ffe6949 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-android.dtsi
@@ -51,7 +51,7 @@
        };
 
        chosen {
-               bootargs = "earlycon=uart8250,mmio32,0xff1a0000";
+               bootargs = "earlycon=uart8250,mmio32,0xff1a0000 swiotlb=1";
        };
 
        ramoops_mem: ramoops_mem {