From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Kettenis Subject: [PATCH] arm64: dts: marvell: mark CP110 ahci as dma-coherent Date: Sat, 31 Mar 2018 16:44:06 +0200 Message-ID: <20180331144406.23030-1-kettenis@openbsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Cc: Mark Kettenis , andrew@lunn.ch, gregory.clement@bootlin.com, jason@lakedaemon.net, sebastian.hesselbarth@gmail.com List-Id: devicetree@vger.kernel.org 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 --- arch/arm64/boot/dts/marvell/armada-cp110.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/marvell/armada-cp110.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110.dtsi index a8af4136dbe7..7e9177ef7b7d 100644 --- a/arch/arm64/boot/dts/marvell/armada-cp110.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-cp110.dtsi @@ -231,6 +231,7 @@ compatible = "marvell,armada-8k-ahci", "generic-ahci"; reg = <0x540000 0x30000>; + dma-coherent; interrupts = ; clocks = <&CP110_LABEL(clk) 1 15>; status = "disabled"; -- 2.16.2