From: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Date: Thu, 28 Sep 2017 01:49:26 +0000 (+0200)
Subject: arm64: allwinner: a64: Add device node for DMA controller
X-Git-Tag: v4.15-rc1~75^2~20^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c32637e0e0f501ff85f0f1db541862e5fe27c4ee;p=thirdparty%2Fkernel%2Flinux.git

arm64: allwinner: a64: Add device node for DMA controller

The A64 SoC has a DMA controller that supports 8 DMA channels
to and from various peripherals. The last used DRQ port is 27.

Add a device node for it.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index a9f3a907d6127..053c465c9ae26 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -136,6 +136,17 @@
 			reg = <0x01c00000 0x1000>;
 		};
 
+		dma: dma-controller@1c02000 {
+			compatible = "allwinner,sun50i-a64-dma";
+			reg = <0x01c02000 0x1000>;
+			interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_DMA>;
+			dma-channels = <8>;
+			dma-requests = <27>;
+			resets = <&ccu RST_BUS_DMA>;
+			#dma-cells = <1>;
+		};
+
 		mmc0: mmc@1c0f000 {
 			compatible = "allwinner,sun50i-a64-mmc";
 			reg = <0x01c0f000 0x1000>;