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From:   Frank Wunderlich <linux@fw-web.de>
To:     linux-rockchip@lists.infradead.org
Cc:     Frank Wunderlich <frank-w@public-files.de>,
        Bjorn Helgaas <bhelgaas@google.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Heiko Stuebner <heiko@sntech.de>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Vinod Koul <vkoul@kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
        =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= <kw@linux.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Johan Jonker <jbx6244@gmail.com>,
        Peter Geis <pgwipeout@gmail.com>,
        Michael Riesch <michael.riesch@wolfvision.net>,
        linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-phy@lists.infradead.org
Subject: [RFC v3 4/5] arm64: dts: rockchip: rk3568: Add PCIe v3 nodes
Date:   Sat, 14 May 2022 13:59:45 +0200
Message-Id: <20220514115946.8858-5-linux@fw-web.de>
In-Reply-To: <20220514115946.8858-1-linux@fw-web.de>
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From: Frank Wunderlich <frank-w@public-files.de>

Add nodes to rk356x devicetree to support PCIe v3.

Co-developed-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
v3:
- fix from Peter: change bus-range and msi-map, msi-map needs
  to start from 0x0

v2:
- change to compatible with soc-part
- change rockchip,bifurcation to vendor unspecific bifurcation
---
 arch/arm64/boot/dts/rockchip/rk3568.dtsi | 122 +++++++++++++++++++++++
 1 file changed, 122 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
index 5eafddf62edc..6dbe73c9cddf 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
@@ -42,6 +42,128 @@ qos_sata0: qos@fe190200 {
 		reg = <0x0 0xfe190200 0x0 0x20>;
 	};
 
+	pcie30_phy_grf: syscon@fdcb8000 {
+		compatible = "rockchip,rk3568-pcie3-phy-grf", "syscon";
+		reg = <0x0 0xfdcb8000 0x0 0x10000>;
+	};
+
+	pcie30phy: phy@fe8c0000 {
+		compatible = "rockchip,rk3568-pcie3-phy";
+		reg = <0x0 0xfe8c0000 0x0 0x20000>;
+		#phy-cells = <0>;
+		clocks = <&pmucru CLK_PCIE30PHY_REF_M>, <&pmucru CLK_PCIE30PHY_REF_N>,
+			 <&cru PCLK_PCIE30PHY>;
+		clock-names = "refclk_m", "refclk_n", "pclk";
+		resets = <&cru SRST_PCIE30PHY>;
+		reset-names = "phy";
+		rockchip,phy-grf = <&pcie30_phy_grf>;
+		status = "disabled";
+	};
+
+	pcie3x1: pcie@fe270000 {
+		compatible = "rockchip,rk3568-pcie";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		bus-range = <0x0 0xf>;
+		clocks = <&cru ACLK_PCIE30X1_MST>, <&cru ACLK_PCIE30X1_SLV>,
+			 <&cru ACLK_PCIE30X1_DBI>, <&cru PCLK_PCIE30X1>,
+			 <&cru CLK_PCIE30X1_AUX_NDFT>;
+		clock-names = "aclk_mst", "aclk_slv",
+			      "aclk_dbi", "pclk", "aux";
+		device_type = "pci";
+		interrupts = <GIC_SPI 160 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "sys", "pmc", "msg", "legacy", "err";
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie3x1_intc 0>,
+				<0 0 0 2 &pcie3x1_intc 1>,
+				<0 0 0 3 &pcie3x1_intc 2>,
+				<0 0 0 4 &pcie3x1_intc 3>;
+		linux,pci-domain = <1>;
+		num-ib-windows = <6>;
+		num-ob-windows = <2>;
+		max-link-speed = <3>;
+		msi-map = <0x0 &gic 0x1000 0x1000>;
+		num-lanes = <1>;
+		phys = <&pcie30phy>;
+		phy-names = "pcie-phy";
+		power-domains = <&power RK3568_PD_PIPE>;
+		reg = <0x3 0xc0400000 0x0 0x00400000>,
+		      <0x0 0xfe270000 0x0 0x00010000>,
+		      <0x3 0x40000000 0x0 0x01000000>;
+		ranges = <0x01000000 0x0 0x01000000 0x3 0x41000000 0x0 0x00100000>,
+			 <0x02000000 0x0 0x02000000 0x3 0x41100000 0x0 0x3ef00000>;
+		reg-names = "dbi", "apb", "config";
+		resets = <&cru SRST_PCIE30X1_POWERUP>;
+		reset-names = "pipe";
+		/* bifurcation; lane1 when using 1+1 */
+		status = "disabled";
+
+		pcie3x1_intc: legacy-interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&gic>;
+			interrupts = <GIC_SPI 157 IRQ_TYPE_EDGE_RISING>;
+		};
+	};
+
+	pcie3x2: pcie@fe280000 {
+		compatible = "rockchip,rk3568-pcie";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		bus-range = <0x0 0xf>;
+		clocks = <&cru ACLK_PCIE30X2_MST>, <&cru ACLK_PCIE30X2_SLV>,
+			 <&cru ACLK_PCIE30X2_DBI>, <&cru PCLK_PCIE30X2>,
+			 <&cru CLK_PCIE30X2_AUX_NDFT>;
+		clock-names = "aclk_mst", "aclk_slv",
+			      "aclk_dbi", "pclk", "aux";
+		device_type = "pci";
+		interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "sys", "pmc", "msg", "legacy", "err";
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie3x2_intc 0>,
+				<0 0 0 2 &pcie3x2_intc 1>,
+				<0 0 0 3 &pcie3x2_intc 2>,
+				<0 0 0 4 &pcie3x2_intc 3>;
+		linux,pci-domain = <2>;
+		num-ib-windows = <6>;
+		num-ob-windows = <2>;
+		max-link-speed = <3>;
+		msi-map = <0x0 &gic 0x2000 0x1000>;
+		num-lanes = <2>;
+		phys = <&pcie30phy>;
+		phy-names = "pcie-phy";
+		power-domains = <&power RK3568_PD_PIPE>;
+		reg = <0x3 0xc0800000 0x0 0x00400000>,
+		      <0x0 0xfe280000 0x0 0x00010000>,
+		      <0x3 0x80000000 0x0 0x01000000>;
+		ranges = <0x01000000 0x0 0x01000000 0x3 0x81000000 0x0 0x00100000>,
+			 <0x02000000 0x0 0x02000000 0x3 0x81100000 0x0 0x3ef00000>;
+		reg-names = "dbi", "apb", "config";
+		resets = <&cru SRST_PCIE30X2_POWERUP>;
+		reset-names = "pipe";
+		/* bifurcation; lane0 when using 1+1 */
+		status = "disabled";
+
+		pcie3x2_intc: legacy-interrupt-controller {
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&gic>;
+			interrupts = <GIC_SPI 162 IRQ_TYPE_EDGE_RISING>;
+		};
+	};
+
 	gmac0: ethernet@fe2a0000 {
 		compatible = "rockchip,rk3568-gmac", "snps,dwmac-4.20a";
 		reg = <0x0 0xfe2a0000 0x0 0x10000>;
-- 
2.25.1