linux-kernel - [PATCH 5/6] arm64: dts: imx8mm: add PCIe support

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Message-Id: <20210723204958.7186-6-tharvey@gateworks.com>
Date:   Fri, 23 Jul 2021 13:49:57 -0700
From:   Tim Harvey <tharvey@...eworks.com>
To:     Richard Zhu <hongxing.zhu@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Krzysztof Wilczyński <kw@...ux.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc:     Tim Harvey <tharvey@...eworks.com>
Subject: [PATCH 5/6] arm64: dts: imx8mm: add PCIe support

Add PCIe node for PCIe support.

Signed-off-by: Tim Harvey <tharvey@...eworks.com>
---
 arch/arm64/boot/dts/freescale/imx8mm.dtsi | 36 +++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 3bec6b8d52a0..45017f50a11b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -1134,6 +1134,10 @@
 				reg = <0x32e50200 0x200>;
 			};
 
+			pcie_phy: pcie-phy@...00000 {
+				  compatible = "fsl,imx7d-pcie-phy";
+				  reg = <0x32f00000 0x10000>;
+			};
 		};
 
 		dma_apbh: dma-controller@...00000 {
@@ -1233,5 +1237,37 @@
 			reg = <0x3d800000 0x400000>;
 			interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
 		};
+
+		pcie0: pcie@...00000 {
+			compatible = "fsl,imx8mm-pcie";
+			reg = <0x33800000 0x400000>,
+			      <0x1ff00000 0x80000>;
+			reg-names = "dbi", "config";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			bus-range = <0x00 0xff>;
+			ranges = <0x81000000 0 0x00000000 0x1ff80000 0 0x00010000 /* downstream I/O 64KB */
+				 0x82000000 0 0x18000000 0x18000000 0 0x07f00000>; /* non-prefetchable memory */
+			num-lanes = <1>;
+			num-viewport = <4>;
+			interrupts = <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi";
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0x7>;
+			interrupt-map = <0 0 0 1 &gic GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 2 &gic GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 3 &gic GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+					<0 0 0 4 &gic GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+			fsl,max-link-speed = <2>;
+			power-domains = <&pgc_pcie>;
+			resets = <&src IMX8MQ_RESET_PCIEPHY>,
+				 <&src IMX8MQ_RESET_PCIE_CTRL_APPS_EN>,
+				 <&src IMX8MQ_RESET_PCIE_CTRL_APPS_CLK_REQ>,
+				 <&src IMX8MQ_RESET_PCIE_CTRL_APPS_TURNOFF>;
+			reset-names = "pciephy", "apps", "clkreq", "turnoff";
+			fsl,imx7d-pcie-phy = <&pcie_phy>;
+			status = "disabled";
+		};
 	};
 };
-- 
2.17.1