linux-kernel - [PATCH v3 2/2] arm64: dts: rockchip: rk3588: add GIC ITS support

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Message-Id: <20230417214035.101190-3-sebastian.reichel@collabora.com>
Date:   Mon, 17 Apr 2023 23:40:35 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Marc Zyngier <maz@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Peng Fan <peng.fan@....com>,
        Robin Murphy <robin.murphy@....com>,
        Peter Geis <pgwipeout@...il.com>,
        XiaoDong Huang <derrick.huang@...k-chips.com>,
        Kever Yang <kever.yang@...k-chips.com>,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        kernel@...labora.com
Subject: [PATCH v3 2/2] arm64: dts: rockchip: rk3588: add GIC ITS support

Add the two Interrupt Translation Service (ITS) IPs that are part of the
GIC-600. They are mainly required for PCIe Message Signalled Interrupts
(MSI).

Co-developed-by: Kever Yang <kever.yang@...k-chips.com>
Signed-off-by: Kever Yang <kever.yang@...k-chips.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
index 2124c654f665..62204b96b0b4 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
@@ -1741,7 +1741,24 @@ gic: interrupt-controller@...00000 {
 		mbi-alias = <0x0 0xfe610000>;
 		mbi-ranges = <424 56>;
 		msi-controller;
+		ranges;
+		#address-cells = <2>;
 		#interrupt-cells = <4>;
+		#size-cells = <2>;
+
+		its0: msi-controller@...40000 {
+			compatible = "arm,gic-v3-its";
+			msi-controller;
+			#msi-cells = <1>;
+			reg = <0x0 0xfe640000 0x0 0x20000>;
+		};
+
+		its1: msi-controller@...60000 {
+			compatible = "arm,gic-v3-its";
+			msi-controller;
+			#msi-cells = <1>;
+			reg = <0x0 0xfe660000 0x0 0x20000>;
+		};
 
 		ppi-partitions {
 			ppi_partition0: interrupt-partition-0 {
-- 
2.39.2