From: Mark Kettenis <kettenis@openbsd.org>
Date: Sat, 31 Mar 2018 14:44:06 +0000 (+0200)
Subject: arm64: dts: marvell: mark CP110 ahci as dma-coherent
X-Git-Tag: v4.18-rc1~50^2~27^2~5
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=02ba4ce64d022609c2510ba39ccca140776d4121;p=linux.git

arm64: dts: marvell: mark CP110 ahci as dma-coherent

The hardware is clearly DMA coherent and not marking it as such leads
to cache coherency problems, at least with the OpenBSD kernel.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---

diff --git a/arch/arm64/boot/dts/marvell/armada-cp110.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110.dtsi
index 48cad7919efa..690d445bd516 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110.dtsi
@@ -233,6 +233,7 @@ CP110_LABEL(sata0): sata@540000 {
 			compatible = "marvell,armada-8k-ahci",
 			"generic-ahci";
 			reg = <0x540000 0x30000>;
+			dma-coherent;
 			interrupts = <ICU_GRP_NSR 107 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&CP110_LABEL(clk) 1 15>,
 				 <&CP110_LABEL(clk) 1 16>;