linux-kernel - [RFC PATCH 6/6] riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC

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Date:   Tue,  2 Mar 2021 18:59:17 +0800
From:   Greentime Hu <greentime.hu@...ive.com>
To:     greentime.hu@...ive.com, paul.walmsley@...ive.com, hes@...ive.com,
        erik.danie@...ive.com, zong.li@...ive.com, bhelgaas@...gle.com,
        robh+dt@...nel.org, palmer@...belt.com, aou@...s.berkeley.edu,
        mturquette@...libre.com, sboyd@...nel.org,
        lorenzo.pieralisi@....com, p.zabel@...gutronix.de,
        alex.dewar90@...il.com, khilman@...libre.com,
        hayashi.kunihiko@...ionext.com, vidyas@...dia.com,
        jh80.chung@...sung.com, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: [RFC PATCH 6/6] riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC

Signed-off-by: Greentime Hu <greentime.hu@...ive.com>
---
 arch/riscv/boot/dts/sifive/fu740-c000.dtsi | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
index d1bb22b11920..d0839739b425 100644
--- a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
+++ b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi
@@ -158,6 +158,7 @@ prci: clock-controller@...00000 {
 			reg = <0x0 0x10000000 0x0 0x1000>;
 			clocks = <&hfclk>, <&rtcclk>;
 			#clock-cells = <1>;
+			#reset-cells = <1>;
 		};
 		uart0: serial@...10000 {
 			compatible = "sifive,fu740-c000-uart", "sifive,uart0";
@@ -288,5 +289,38 @@ gpio: gpio@...60000 {
 			clocks = <&prci PRCI_CLK_PCLK>;
 			status = "disabled";
 		};
+		pcie@...000000 {
+			#address-cells = <3>;
+			#interrupt-cells = <1>;
+			#num-lanes = <8>;
+			#size-cells = <2>;
+			compatible = "sifive,fu740-pcie";
+			reg = <0xe 0x00000000 0x1 0x0
+			       0xd 0xf0000000 0x0 0x10000000
+			       0x0 0x100d0000 0x0 0x1000>;
+			reg-names = "dbi", "config", "mgmt";
+			device_type = "pci";
+			dma-coherent;
+			bus-range = <0x0 0xff>;
+			ranges = <0x81000000  0x0 0x60080000  0x0 0x60080000 0x0 0x10000        /* I/O */
+				  0x82000000  0x0 0x60090000  0x0 0x60090000 0x0 0xff70000      /* mem */
+				  0x82000000  0x0 0x70000000  0x0 0x70000000 0x0 0x1000000      /* mem */
+				  0xc3000000 0x20 0x00000000 0x20 0x00000000 0x20 0x00000000>;  /* mem prefetchable */
+			num-lanes = <0x8>;
+			interrupts = <56 57 58 59 60 61 62 63 64>;
+			interrupt-names = "msi", "inta", "intb", "intc", "intd";
+			interrupt-parent = <&plic0>;
+			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+			interrupt-map = <0x0 0x0 0x0 0x1 &plic0 57>,
+					<0x0 0x0 0x0 0x2 &plic0 58>,
+					<0x0 0x0 0x0 0x3 &plic0 59>,
+					<0x0 0x0 0x0 0x4 &plic0 60>;
+			clock-names = "pcie_aux";
+			clocks = <&prci PRCI_CLK_PCIE_AUX>;
+			pwren-gpios = <&gpio 5 0>;
+			perstn-gpios = <&gpio 8 0>;
+			resets = <&prci 4>;
+			status = "okay";
+		};
 	};
 };
-- 
2.30.0