ARM Sunxi Platform Development
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From: Andre Przywara <andre.przywara@arm.com>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>, Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Rob Herring <robh@kernel.org>
Cc: Chris Morgan <macromorgan@hotmail.com>,
	Ryan Walklin <ryan@testtoast.com>,
	Philippe Simons <simons.philippe@gmail.com>,
	iommu@lists.linux.dev, devicetree@vger.kernel.org,
	linux-sunxi@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 5/5] arm64: dts: allwinner: h616: add IOMMU node
Date: Sun, 16 Jun 2024 23:40:56 +0100	[thread overview]
Message-ID: <20240616224056.29159-6-andre.przywara@arm.com> (raw)
In-Reply-To: <20240616224056.29159-1-andre.przywara@arm.com>

The Allwinner H616 contains a scatter-gather IOMMU connected to some
video related devices. It's almost compatible to the one used in the H6,
though with minor incompatibilities.

Add the DT node describing its resources, so that devices like the video
or display engine can connect to it.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index 187663d45ed72..8367b31d03ac0 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -305,6 +305,15 @@ x32clk_fanout_pin: x32clk-fanout-pin {
 			};
 		};
 
+		iommu: iommu@30f0000 {
+			compatible = "allwinner,sun50i-h616-iommu";
+			reg = <0x030f0000 0x10000>;
+			interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_IOMMU>;
+			resets = <&ccu RST_BUS_IOMMU>;
+			#iommu-cells = <1>;
+		};
+
 		gic: interrupt-controller@3021000 {
 			compatible = "arm,gic-400";
 			reg = <0x03021000 0x1000>,
-- 
2.39.4


  parent reply	other threads:[~2024-06-16 22:42 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-16 22:40 [PATCH v2 0/5] iommu: sun50i: Add Allwinner H616 support Andre Przywara
2024-06-16 22:40 ` [PATCH v2 1/5] iommu: sun50i: clear bypass register Andre Przywara
2024-06-20 10:16   ` Chen-Yu Tsai
2024-06-16 22:40 ` [PATCH v2 2/5] iommu: sun50i: allocate page tables from below 4 GiB Andre Przywara
2024-06-20 10:17   ` Chen-Yu Tsai
2024-11-19 13:45   ` Parthiban
2024-06-16 22:40 ` [PATCH v2 3/5] dt-bindings: iommu: add new compatible strings Andre Przywara
2024-06-20 10:17   ` Chen-Yu Tsai
2024-06-16 22:40 ` [PATCH v2 4/5] iommu: sun50i: Add H616 compatible string Andre Przywara
2024-06-20 10:17   ` Chen-Yu Tsai
2024-06-16 22:40 ` Andre Przywara [this message]
2024-06-20  9:45   ` [PATCH v2 5/5] arm64: dts: allwinner: h616: add IOMMU node Ryan Walklin
2024-06-25 12:03 ` [PATCH v2 0/5] iommu: sun50i: Add Allwinner H616 support Joerg Roedel
2024-06-25 16:20   ` Chen-Yu Tsai
2024-06-27 10:15     ` Joerg Roedel
2024-06-27 14:02 ` (subset) " Chen-Yu Tsai

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