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From:   Achal Verma <a-verma1@ti.com>
To:     Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        Achal Verma <a-verma1@ti.com>
Subject: [PATCH] arm64: dts: ti: k3-j784s4: Add initial PCIe/SerDes support for J784S4
Date:   Mon, 15 May 2023 12:32:19 +0530
Message-ID: <20230515070219.2381457-1-a-verma1@ti.com>
MIME-Version: 1.0
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From: Matt Ranostay <mranostay@ti.com>

J784S4 SoC supports two PCIE instances as follows:
* PCIE0 - 4x lanes
* PCIE1 - 4x lanes

J784S4 EVM board has the following PCIE connectors:
* PCIE0 - 4x lanes
* PCIE1 - 2x lanes

Signed-off-by: Matt Ranostay <mranostay@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Achal Verma <a-verma1@ti.com>
---

This patch depends on:
https://lore.kernel.org/all/20230310111630.743023-1-s-vadapalli@ti.com/
https://lore.kernel.org/all/20230425131607.290707-1-j-choudhary@ti.com/
https://lore.kernel.org/all/20230401112633.2406604-1-a-verma1@ti.com/

 arch/arm64/boot/dts/ti/k3-j784s4-evm.dts   |  65 +++++++++++
 arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 126 +++++++++++++++++++++
 2 files changed, 191 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
index 75d635c9992b..27f5902f0bfb 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts
@@ -261,6 +261,71 @@ &main_sdhci1 {
 	vqmmc-supply = <&vdd_sd_dv>;
 };
 
+&serdes0 {
+	status = "okay";
+	serdes0_pcie_link: phy@0 {
+		reg = <0>;
+		cdns,num-lanes = <4>;
+		#phy-cells = <0>;
+		cdns,phy-type = <PHY_TYPE_PCIE>;
+		resets = <&serdes_wiz0 1>, <&serdes_wiz0 2>,
+			 <&serdes_wiz0 3>, <&serdes_wiz0 4>;
+	};
+};
+
+&serdes_wiz0 {
+	status = "okay";
+};
+
+&serdes1 {
+	status = "okay";
+	serdes1_pcie_link: phy@0 {
+		reg = <0>;
+		cdns,num-lanes = <2>;
+		#phy-cells = <0>;
+		cdns,phy-type = <PHY_TYPE_PCIE>;
+		resets = <&serdes_wiz1 1>, <&serdes_wiz1 2>;
+	};
+};
+
+&serdes_wiz1 {
+	status = "okay";
+};
+
+&pcie0_rc {
+	status = "okay";
+	reset-gpios = <&exp1 6 GPIO_ACTIVE_HIGH>;
+	phys = <&serdes1_pcie_link>;
+	phy-names = "pcie-phy";
+};
+
+&pcie0_ep {
+	phys = <&serdes1_pcie_link>;
+	phy-names = "pcie-phy";
+};
+
+&pcie1_rc {
+	status = "okay";
+	num-lanes = <2>;
+	reset-gpios = <&exp1 2 GPIO_ACTIVE_HIGH>;
+	phys = <&serdes0_pcie_link>;
+	phy-names = "pcie-phy";
+};
+
+&pcie1_ep {
+	num-lanes = <2>;
+	phys = <&serdes0_pcie_link>;
+	phy-names = "pcie-phy";
+};
+
+&serdes_ln_ctrl {
+	idle-states = <J784S4_SERDES0_LANE0_PCIE1_LANE0>, <J784S4_SERDES0_LANE1_PCIE1_LANE1>,
+		<J784S4_SERDES0_LANE2_IP3_UNUSED>, <J784S4_SERDES0_LANE3_USB>,
+		<J784S4_SERDES1_LANE0_PCIE0_LANE0>, <J784S4_SERDES1_LANE1_PCIE0_LANE1>,
+		<J784S4_SERDES1_LANE2_PCIE0_LANE2>, <J784S4_SERDES1_LANE3_PCIE0_LANE3>,
+		<J784S4_SERDES2_LANE2_QSGMII_LANE1>, <J784S4_SERDES2_LANE3_QSGMII_LANE2>;
+};
+
 &main_gpio0 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
index 5fa31fe2311b..206f3d206c4c 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
@@ -949,6 +949,132 @@ cpts@310d0000 {
 		};
 	};
 
+	pcie0_rc: pcie@2900000 {
+		compatible = "ti,j784s4-pcie-host";
+		reg = <0x00 0x02900000 0x00 0x1000>,
+		      <0x00 0x02907000 0x00 0x400>,
+		      <0x00 0x0d000000 0x00 0x00800000>,
+		      <0x00 0x10000000 0x00 0x00001000>;
+		reg-names = "intd_cfg", "user_cfg", "reg", "cfg";
+		interrupt-names = "link_state";
+		interrupts = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
+		device_type = "pci";
+		ti,syscon-pcie-ctrl = <&scm_conf 0x4070>;
+		max-link-speed = <3>;
+		num-lanes = <4>;
+		power-domains = <&k3_pds 332 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 332 0>;
+		clock-names = "fck";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		bus-range = <0x0 0xff>;
+		vendor-id = <0x104c>;
+		device-id = <0xb00d>;
+		msi-map = <0x0 &gic_its 0x0 0x10000>;
+		dma-coherent;
+		ranges = <0x01000000 0x0 0x10001000 0x0 0x10001000 0x0 0x0010000>,
+			 <0x02000000 0x0 0x10011000 0x0 0x10011000 0x0 0x7fef000>;
+		dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x10000 0x0>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie0_intc 0>,
+				<0 0 0 2 &pcie0_intc 0>,
+				<0 0 0 3 &pcie0_intc 0>,
+				<0 0 0 4 &pcie0_intc 0>;
+		status = "disabled";
+
+		pcie0_intc: interrupt-controller {
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&gic500>;
+			interrupts = <GIC_SPI 312 IRQ_TYPE_EDGE_RISING>;
+		};
+	};
+
+	pcie0_ep: pcie-ep@2900000 {
+		compatible = "ti,j784s4-pcie-ep";
+		reg = <0x00 0x02900000 0x00 0x1000>,
+		      <0x00 0x02907000 0x00 0x400>,
+		      <0x00 0x0d000000 0x00 0x00800000>,
+		      <0x00 0x10000000 0x00 0x08000000>;
+		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
+		interrupt-names = "link_state";
+		interrupts = <GIC_SPI 318 IRQ_TYPE_EDGE_RISING>;
+		ti,syscon-pcie-ctrl = <&scm_conf 0x4070>;
+		max-link-speed = <3>;
+		num-lanes = <4>;
+		power-domains = <&k3_pds 332 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 332 0>;
+		clock-names = "fck";
+		max-functions = /bits/ 8 <6>;
+		max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>;
+		dma-coherent;
+		status = "disabled";
+	};
+
+	pcie1_rc: pcie@2910000 {
+		compatible = "ti,j784s4-pcie-host";
+		reg = <0x00 0x02910000 0x00 0x1000>,
+		      <0x00 0x02917000 0x00 0x400>,
+		      <0x00 0x0d800000 0x00 0x00800000>,
+		      <0x00 0x18000000 0x00 0x00001000>;
+		reg-names = "intd_cfg", "user_cfg", "reg", "cfg";
+		interrupt-names = "link_state";
+		interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>;
+		device_type = "pci";
+		ti,syscon-pcie-ctrl = <&scm_conf 0x4074>;
+		max-link-speed = <3>;
+		num-lanes = <4>;
+		power-domains = <&k3_pds 333 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 333 0>;
+		clock-names = "fck";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		bus-range = <0x0 0xff>;
+		vendor-id = <0x104c>;
+		device-id = <0xb013>;
+		msi-map = <0x0 &gic_its 0x10000 0x10000>;
+		dma-coherent;
+		ranges = <0x01000000 0x0 0x18001000  0x00 0x18001000  0x0 0x0010000>,
+			 <0x02000000 0x0 0x18011000  0x00 0x18011000  0x0 0x7fef000>;
+		dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x10000 0x0>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0 0 0 7>;
+		interrupt-map = <0 0 0 1 &pcie1_intc 0>,
+				<0 0 0 2 &pcie1_intc 0>,
+				<0 0 0 3 &pcie1_intc 0>,
+				<0 0 0 4 &pcie1_intc 0>;
+		status = "disabled";
+
+		pcie1_intc: interrupt-controller {
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&gic500>;
+			interrupts = <GIC_SPI 324 IRQ_TYPE_EDGE_RISING>;
+		};
+	};
+
+	pcie1_ep: pcie-ep@2910000 {
+		compatible = "ti,j784s4-pcie-ep";
+		reg = <0x00 0x02910000 0x00 0x1000>,
+		      <0x00 0x02917000 0x00 0x400>,
+		      <0x00 0x0d800000 0x00 0x00800000>,
+		      <0x00 0x18000000 0x00 0x08000000>;
+		reg-names = "intd_cfg", "user_cfg", "reg", "mem";
+		interrupt-names = "link_state";
+		interrupts = <GIC_SPI 330 IRQ_TYPE_EDGE_RISING>;
+		ti,syscon-pcie-ctrl = <&scm_conf 0x4074>;
+		max-link-speed = <3>;
+		num-lanes = <4>;
+		power-domains = <&k3_pds 333 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 333 0>;
+		clock-names = "fck";
+		max-functions = /bits/ 8 <6>;
+		max-virtual-functions = /bits/ 8 <4 4 4 4 0 0>;
+		dma-coherent;
+		status = "disabled";
+	};
+
 	main_mcan0: can@2701000 {
 		compatible = "bosch,m_can";
 		reg = <0x00 0x02701000 0x00 0x200>,
-- 
2.25.1