linux-kernel - [PATCH 03/10] arm: dts: owl-s500: Add DMA controller

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Message-Id: <53a92ab876246025cacccd1e0753b5b2910e37da.1593124368.git.cristian.ciocaltea@gmail.com>
Date:   Fri, 26 Jun 2020 02:34:15 +0300
From:   Cristian Ciocaltea <cristian.ciocaltea@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-actions@...ts.infradead.org
Subject: [PATCH 03/10] arm: dts: owl-s500: Add DMA controller

Add DMA controller node for Actions Semi S500 SoC.

Note the Actions Semi Owl SoC's DMA driver seems to be fully compatible
with the Actions Semi S500 SoC, even though this is not explicitly
mentioned in the source code. Hence, for the moment, enable the DMA
controller node using the "actions,s900-dma" compatible string.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@...il.com>
---
 arch/arm/boot/dts/owl-s500.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/owl-s500.dtsi b/arch/arm/boot/dts/owl-s500.dtsi
index ac3d04c75dd5..0f4fc5487dad 100644
--- a/arch/arm/boot/dts/owl-s500.dtsi
+++ b/arch/arm/boot/dts/owl-s500.dtsi
@@ -205,5 +205,19 @@ sps: power-controller@...b0100 {
 			reg = <0xb01b0100 0x100>;
 			#power-domain-cells = <1>;
 		};
+
+		dma: dma-controller@...60000 {
+			compatible = "actions,s900-dma";
+			reg = <0xb0260000 0xd00>;
+			interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			dma-channels = <12>;
+			dma-requests = <46>;
+			clocks = <&cmu CLK_DMAC>;
+			power-domains = <&sps S500_PD_DMA>;
+		};
 	};
 };
-- 
2.27.0