[PATCH v4 11/11] riscv: dts: starfive: add PCIe dts configuration for JH7110

From: Minda Chen <minda.chen@starfivetech.com>
To: "Daire McNamara" <daire.mcnamara@microchip.com>,
	"Conor Dooley" <conor@kernel.org>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Emil Renner Berthing" <emil.renner.berthing@canonical.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org, linux-pci@vger.kernel.org,
	"Pali Rohár" <pali@kernel.org>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Albert Ou" <aou@eecs.berkeley.edu>,
	"Philipp Zabel" <p.zabel@pengutronix.de>,
	"Mason Huo" <mason.huo@starfivetech.com>,
	"Leyfoon Tan" <leyfoon.tan@starfivetech.com>,
	"Kevin Xie" <kevin.xie@starfivetech.com>,
	"Minda Chen" <minda.chen@starfivetech.com>
Subject: [PATCH v4 11/11] riscv: dts: starfive: add PCIe dts configuration for JH7110
Date: Fri, 25 Aug 2023 17:01:29 +0800	[thread overview]
Message-ID: <20230825090129.65721-12-minda.chen@starfivetech.com> (raw)
In-Reply-To: <20230825090129.65721-1-minda.chen@starfivetech.com>

Add PCIe dts configuraion for JH7110 SoC platform.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
---
 .../jh7110-starfive-visionfive-2.dtsi         | 64 ++++++++++++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi      | 86 +++++++++++++++++++
 2 files changed, 150 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index de0f40a8be93..4dd61e2fec7d 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -15,6 +15,8 @@
 		i2c2 = &i2c2;
 		i2c5 = &i2c5;
 		i2c6 = &i2c6;
+		pcie0 = &pcie0;
+		pcie1 = &pcie1;
 		serial0 = &uart0;
 	};
 
@@ -208,6 +210,54 @@
 		};
 	};
 
+	pcie0_pins: pcie0-0 {
+		wake-pins {
+			pinmux = <GPIOMUX(32, GPOUT_LOW,
+					      GPOEN_DISABLE,
+					      GPI_NONE)>;
+			bias-pull-up;
+			drive-strength = <2>;
+			input-enable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+
+		clkreq-pins {
+			pinmux = <GPIOMUX(27, GPOUT_LOW,
+					      GPOEN_DISABLE,
+					      GPI_NONE)>;
+			bias-pull-down;
+			drive-strength = <2>;
+			input-enable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
+	pcie1_pins: pcie1-0 {
+		wake-pins {
+			pinmux = <GPIOMUX(21, GPOUT_LOW,
+					      GPOEN_DISABLE,
+					      GPI_NONE)>;
+			bias-pull-up;
+			drive-strength = <2>;
+			input-enable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+
+		clkreq-pins {
+			pinmux = <GPIOMUX(29, GPOUT_LOW,
+					      GPOEN_DISABLE,
+					      GPI_NONE)>;
+			bias-pull-down;
+			drive-strength = <2>;
+			input-enable;
+			input-schmitt-disable;
+			slew-rate = <0>;
+		};
+	};
+
 	uart0_pins: uart0-0 {
 		tx-pins {
 			pinmux = <GPIOMUX(5, GPOUT_SYS_UART0_TX,
@@ -233,6 +283,20 @@
 	};
 };
 
+&pcie0 {
+	pinctrl-names = "default";
+	perst-gpios = <&sysgpio 26 GPIO_ACTIVE_LOW>;
+	pinctrl-0 = <&pcie0_pins>;
+	status = "okay";
+};
+
+&pcie1 {
+	pinctrl-names = "default";
+	perst-gpios = <&sysgpio 28 GPIO_ACTIVE_LOW>;
+	pinctrl-0 = <&pcie1_pins>;
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart0_pins>;
diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index 02354e642c44..7a5dc43cf63c 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -629,5 +629,91 @@
 			#reset-cells = <1>;
 			power-domains = <&pwrc JH7110_PD_VOUT>;
 		};
+
+		pcie0: pcie@940000000 {
+			compatible = "starfive,jh7110-pcie";
+			reg = <0x9 0x40000000 0x0 0x1000000>,
+			      <0x0 0x2b000000 0x0 0x100000>;
+			reg-names = "cfg", "apb";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			ranges = <0x82000000  0x0 0x30000000  0x0 0x30000000 0x0 0x08000000>,
+				 <0xc3000000  0x9 0x00000000  0x9 0x00000000 0x0 0x40000000>;
+			interrupts = <56>;
+			interrupt-parent = <&plic>;
+			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+			interrupt-map = <0x0 0x0 0x0 0x1 &pcie_intc0 0x1>,
+					<0x0 0x0 0x0 0x2 &pcie_intc0 0x2>,
+					<0x0 0x0 0x0 0x3 &pcie_intc0 0x3>,
+					<0x0 0x0 0x0 0x4 &pcie_intc0 0x4>;
+			msi-controller;
+			device_type = "pci";
+			starfive,stg-syscon = <&stg_syscon>;
+			bus-range = <0x0 0xff>;
+			clocks = <&syscrg JH7110_SYSCLK_NOC_BUS_STG_AXI>,
+				 <&stgcrg JH7110_STGCLK_PCIE0_TL>,
+				 <&stgcrg JH7110_STGCLK_PCIE0_AXI_MST0>,
+				 <&stgcrg JH7110_STGCLK_PCIE0_APB>;
+			clock-names = "noc", "tl", "axi_mst0", "apb";
+			resets = <&stgcrg JH7110_STGRST_PCIE0_AXI_MST0>,
+				 <&stgcrg JH7110_STGRST_PCIE0_AXI_SLV0>,
+				 <&stgcrg JH7110_STGRST_PCIE0_AXI_SLV>,
+				 <&stgcrg JH7110_STGRST_PCIE0_BRG>,
+				 <&stgcrg JH7110_STGRST_PCIE0_CORE>,
+				 <&stgcrg JH7110_STGRST_PCIE0_APB>;
+			reset-names = "mst0", "slv0", "slv", "brg",
+				      "core", "apb";
+			status = "disabled";
+
+			pcie_intc0: interrupt-controller {
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+				interrupt-controller;
+			};
+		};
+
+		pcie1: pcie@9c0000000 {
+			compatible = "starfive,jh7110-pcie";
+			reg = <0x9 0xc0000000 0x0 0x1000000>,
+			      <0x0 0x2c000000 0x0 0x100000>;
+			reg-names = "cfg", "apb";
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			ranges = <0x82000000  0x0 0x38000000  0x0 0x38000000 0x0 0x08000000>,
+				 <0xc3000000  0x9 0x80000000  0x9 0x80000000 0x0 0x40000000>;
+			interrupts = <57>;
+			interrupt-parent = <&plic>;
+			interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+			interrupt-map = <0x0 0x0 0x0 0x1 &pcie_intc1 0x1>,
+					<0x0 0x0 0x0 0x2 &pcie_intc1 0x2>,
+					<0x0 0x0 0x0 0x3 &pcie_intc1 0x3>,
+					<0x0 0x0 0x0 0x4 &pcie_intc1 0x4>;
+			msi-controller;
+			device_type = "pci";
+			starfive,stg-syscon = <&stg_syscon>;
+			bus-range = <0x0 0xff>;
+			clocks = <&syscrg JH7110_SYSCLK_NOC_BUS_STG_AXI>,
+				 <&stgcrg JH7110_STGCLK_PCIE1_TL>,
+				 <&stgcrg JH7110_STGCLK_PCIE1_AXI_MST0>,
+				 <&stgcrg JH7110_STGCLK_PCIE1_APB>;
+			clock-names = "noc", "tl", "axi_mst0", "apb";
+			resets = <&stgcrg JH7110_STGRST_PCIE1_AXI_MST0>,
+				 <&stgcrg JH7110_STGRST_PCIE1_AXI_SLV0>,
+				 <&stgcrg JH7110_STGRST_PCIE1_AXI_SLV>,
+				 <&stgcrg JH7110_STGRST_PCIE1_BRG>,
+				 <&stgcrg JH7110_STGRST_PCIE1_CORE>,
+				 <&stgcrg JH7110_STGRST_PCIE1_APB>;
+			reset-names = "mst0", "slv0", "slv", "brg",
+				      "core", "apb";
+			status = "disabled";
+
+			pcie_intc1: interrupt-controller {
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+				interrupt-controller;
+			};
+		};
 	};
 };
-- 
2.17.1

