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From: Siddharth Vadapalli <s-vadapalli@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>, <afd@ti.com>, <kristo@kernel.org>,
        <robh@kernel.org>, <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
        <rogerq@kernel.org>
CC: <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>, <u-kumar1@ti.com>,
        <danishanwar@ti.com>, <srk@ti.com>, <s-vadapalli@ti.com>
Subject: [PATCH v5 6/7] arm64: dts: ti: k3-j722s-main: Add SERDES and PCIe support
Date: Tue, 4 Jun 2024 14:22:51 +0530
Message-ID: <20240604085252.3686037-7-s-vadapalli@ti.com>
In-Reply-To: <20240604085252.3686037-1-s-vadapalli@ti.com>
References: <20240604085252.3686037-1-s-vadapalli@ti.com>
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J722S SoC has two instances of SERDES namely SERDES0 and SERDES1 and one
instance of PCIe namely PCIe0. Both SERDES0 and SERDES1 are single lane
SERDES. The PCIe0 instance of PCIe is a Gen3 single lane PCIe controller.

Since SERDES and PCIe are not present on AM62P SoC, add the device-tree
nodes corresponding to them in the J722S SoC specific "k3-j722s-main.dtsi"
file.

Co-developed-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
---
v4:
https://lore.kernel.org/r/20240601121554.2860403-7-s-vadapalli@ti.com/
Changes since v4:
- Based on Andrew's feedback at:
  https://lore.kernel.org/r/147d58a6-0cad-47b6-a069-755f835a77e9@ti.com/
  SERDES1 has also been disabled similar to SERDES0.

 arch/arm64/boot/dts/ti/k3-j722s-main.dtsi | 133 ++++++++++++++++++++++
 1 file changed, 133 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
index 84378fc839d6..b16f3a7cb109 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
@@ -5,7 +5,123 @@
  * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
  */
 
+#include <dt-bindings/phy/phy-cadence.h>
+#include <dt-bindings/phy/phy-ti.h>
+
+/ {
+	serdes_refclk: clk-0 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <0>;
+	};
+};
+
 &cbass_main {
+	serdes_wiz0: phy@f000000 {
+		compatible = "ti,am64-wiz-10g";
+		ranges = <0x0f000000 0x0 0x0f000000 0x00010000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		power-domains = <&k3_pds 279 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 279 0>, <&k3_clks 279 1>, <&serdes_refclk>;
+		clock-names = "fck", "core_ref_clk", "ext_ref_clk";
+		num-lanes = <1>;
+		#reset-cells = <1>;
+		#clock-cells = <1>;
+
+		assigned-clocks = <&k3_clks 279 1>;
+		assigned-clock-parents = <&k3_clks 279 5>;
+
+		serdes0: serdes@f000000 {
+			compatible = "ti,j721e-serdes-10g";
+			reg = <0x0f000000 0x00010000>;
+			reg-names = "torrent_phy";
+			resets = <&serdes_wiz0 0>;
+			reset-names = "torrent_reset";
+			clocks = <&serdes_wiz0 TI_WIZ_PLL0_REFCLK>,
+				 <&serdes_wiz0 TI_WIZ_PHY_EN_REFCLK>;
+			clock-names = "refclk", "phy_en_refclk";
+			assigned-clocks = <&serdes_wiz0 TI_WIZ_PLL0_REFCLK>,
+					  <&serdes_wiz0 TI_WIZ_PLL1_REFCLK>,
+					  <&serdes_wiz0 TI_WIZ_REFCLK_DIG>;
+			assigned-clock-parents = <&k3_clks 279 1>,
+						 <&k3_clks 279 1>,
+						 <&k3_clks 279 1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#clock-cells = <1>;
+
+			status = "disabled"; /* Needs lane config */
+		};
+	};
+
+	serdes_wiz1: phy@f010000 {
+		compatible = "ti,am64-wiz-10g";
+		ranges = <0x0f010000 0x0 0x0f010000 0x00010000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		power-domains = <&k3_pds 280 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 280 0>, <&k3_clks 280 1>, <&serdes_refclk>;
+		clock-names = "fck", "core_ref_clk", "ext_ref_clk";
+		num-lanes = <1>;
+		#reset-cells = <1>;
+		#clock-cells = <1>;
+
+		assigned-clocks = <&k3_clks 280 1>;
+		assigned-clock-parents = <&k3_clks 280 5>;
+
+		serdes1: serdes@f010000 {
+			compatible = "ti,j721e-serdes-10g";
+			reg = <0x0f010000 0x00010000>;
+			reg-names = "torrent_phy";
+			resets = <&serdes_wiz1 0>;
+			reset-names = "torrent_reset";
+			clocks = <&serdes_wiz1 TI_WIZ_PLL0_REFCLK>,
+				 <&serdes_wiz1 TI_WIZ_PHY_EN_REFCLK>;
+			clock-names = "refclk", "phy_en_refclk";
+			assigned-clocks = <&serdes_wiz1 TI_WIZ_PLL0_REFCLK>,
+					  <&serdes_wiz1 TI_WIZ_PLL1_REFCLK>,
+					  <&serdes_wiz1 TI_WIZ_REFCLK_DIG>;
+			assigned-clock-parents = <&k3_clks 280 1>,
+						 <&k3_clks 280 1>,
+						 <&k3_clks 280 1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#clock-cells = <1>;
+
+			status = "disabled"; /* Needs lane config */
+		};
+	};
+
+	pcie0_rc: pcie@f102000 {
+		compatible = "ti,j722s-pcie-host", "ti,j721e-pcie-host";
+		reg = <0x00 0x0f102000 0x00 0x1000>,
+		      <0x00 0x0f100000 0x00 0x400>,
+		      <0x00 0x0d000000 0x00 0x00800000>,
+		      <0x00 0x68000000 0x00 0x00001000>;
+		reg-names = "intd_cfg", "user_cfg", "reg", "cfg";
+		ranges = <0x01000000 0x00 0x68001000  0x00 0x68001000  0x00 0x0010000>,
+			 <0x02000000 0x00 0x68011000  0x00 0x68011000  0x00 0x7fef000>;
+		dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x10000 0x0>;
+		interrupt-names = "link_state";
+		interrupts = <GIC_SPI 99 IRQ_TYPE_EDGE_RISING>;
+		device_type = "pci";
+		max-link-speed = <3>;
+		num-lanes = <1>;
+		power-domains = <&k3_pds 259 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 259 0>, <&serdes1 CDNS_TORRENT_REFCLK_DRIVER>;
+		clock-names = "fck", "pcie_refclk";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		bus-range = <0x0 0xff>;
+		vendor-id = <0x104c>;
+		device-id = <0xb010>;
+		cdns,no-bar-match-nbits = <64>;
+		ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x0>;
+		msi-map = <0x0 &gic_its 0x0 0x10000>;
+		status = "disabled";
+	};
+
 	usbss1: usb@f920000 {
 		compatible = "ti,j721e-usb";
 		reg = <0x00 0x0f920000 0x00 0x100>;
@@ -38,3 +154,20 @@ usb1: usb@31200000{
 		};
 	};
 };
+
+&main_conf {
+	serdes_ln_ctrl: mux-controller@4080 {
+		compatible = "reg-mux";
+		reg = <0x4080 0x14>;
+		#mux-control-cells = <1>;
+		mux-reg-masks = <0x00 0x3>, /* SERDES0 lane0 select */
+				<0x10 0x3>; /* SERDES1 lane0 select */
+	};
+};
+
+&wkup_conf {
+	pcie0_ctrl: pcie0-ctrl@4070 {
+		compatible = "ti,j784s4-pcie-ctrl", "syscon";
+		reg = <0x4070 0x4>;
+	};
+};
-- 
2.40.1