From: Huang, Tao <huangtao@rock-chips.com>
Date: Tue, 5 Jul 2016 06:33:11 +0000 (+0800)
Subject: arm64: dts: rockchip: set swiotlb buffer size on rk3399 android board
X-Git-Tag: firefly_0821_release~2215
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7311e6fcad56201562528f7fbaadbc2b3f9153f6;p=firefly-linux-kernel-4.4.55.git

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 1a4f919a4212..f5e31302ea80 100644
--- 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 {