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From: Siddharth Vadapalli <s-vadapalli@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>, <kristo@kernel.org>, <robh@kernel.org>,
        <krzk+dt@kernel.org>, <conor+dt@kernel.org>
CC: <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>, <danishanwar@ti.com>,
        <srk@ti.com>, <s-vadapalli@ti.com>
Subject: [PATCH v2 1/3] arm64: dts: ti: k3-j784s4-main: Add PCIe nodes
Date: Mon, 20 May 2024 15:41:47 +0530
Message-ID: <20240520101149.3243151-2-s-vadapalli@ti.com>
In-Reply-To: <20240520101149.3243151-1-s-vadapalli@ti.com>
References: <20240520101149.3243151-1-s-vadapalli@ti.com>
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TI's J784S4 has two instances of Gen3 x4 Lane PCIe Controllers namely
PCIE0 and PCIE1. Add support for the Root Complex Mode of operation of
these PCIe instances.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
---
v1:
https://lore.kernel.org/r/20240129114749.1197579-2-s-vadapalli@ti.com/
Changes since v1:
- Added "pcie0_ctrl" and "pcie1_ctrl" nodes within the "scm_conf" node
  in order to reuse the existing "ti,syscon-pcie-ctrl" property without
  having to map the entire "scm_conf" region for configuring the PCIe
  Control registers pointed to by the "pcie0_ctrl" and "pcie1_ctrl"
  nodes.

 arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
index 6a4554c6c9c1..c99bd1284c28 100644
--- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
@@ -48,6 +48,16 @@ scm_conf: bus@100000 {
 		#size-cells = <1>;
 		ranges = <0x00 0x00 0x00100000 0x1c000>;
 
+		pcie0_ctrl: pcie0-ctrl@4070 {
+			compatible = "ti,j784s4-pcie-ctrl", "syscon";
+			reg = <0x4070 0x4>;
+		};
+
+		pcie1_ctrl: pcie1-ctrl@4074 {
+			compatible = "ti,j784s4-pcie-ctrl", "syscon";
+			reg = <0x4074 0x4>;
+		};
+
 		serdes_ln_ctrl: mux-controller@4080 {
 			compatible = "reg-mux";
 			reg = <0x00004080 0x30>;
@@ -907,6 +917,90 @@ main_sdhci1: mmc@4fb0000 {
 		status = "disabled";
 	};
 
+	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 = <&pcie0_ctrl 0x0>;
+		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 = <0xb012>;
+		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>;
+		};
+	};
+
+	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 = <&pcie1_ctrl 0x0>;
+		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 = <0xb012>;
+		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>;
+		};
+	};
+
 	serdes_wiz0: wiz@5060000 {
 		compatible = "ti,j784s4-wiz-10g";
 		#address-cells = <1>;
-- 
2.40.1