linux-kernel - [PATCH 2/6] arm64: dts: ti: k3-j721s2-main: Add SERDES and WIZ device tree node

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Message-ID: <20220125131113.727-3-a-govindraju@ti.com>
Date:   Tue, 25 Jan 2022 18:41:09 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Tero Kristo <kristo@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        Nishanth Menon <nm@...com>,
        Aswath Govindraju <a-govindraju@...com>
Subject: [PATCH 2/6] arm64: dts: ti: k3-j721s2-main: Add SERDES and WIZ device tree node

Add dt node for the single instance of WIZ (SERDES wrapper) and
SERDES module shared by PCIe, eDP and USB.

Signed-off-by: Aswath Govindraju <a-govindraju@...com>
---
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index e651f0af1aaa..ebd55032e59c 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -5,6 +5,13 @@
  * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/
  */
 
+/ {
+	serdes_refclk: serdes-refclk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+	};
+};
+
 &cbass_main {
 	msmc_ram: sram@...00000 {
 		compatible = "mmio-sram";
@@ -33,6 +40,13 @@
 		#size-cells = <1>;
 		ranges = <0x00 0x00 0x00104000 0x18000>;
 
+		serdes_ln_ctrl: mux-controller@80 {
+			compatible = "mmio-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x80 0x3>, <0x84 0x3>, /* SERDES0 lane0/1 select */
+					<0x88 0x3>, <0x8c 0x3>; /* SERDES0 lane2/3 select */
+		};
+
 		usb_serdes_mux: mux-controller@0 {
 			compatible = "mmio-mux";
 			#mux-control-cells = <1>;
@@ -725,6 +739,62 @@
 		};
 	};
 
+	serdes_wiz0: wiz@...0000 {
+		compatible = "ti,j721e-wiz-10g";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		power-domains = <&k3_pds 365 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 365 0>, <&k3_clks 365 3>, <&serdes_refclk>;
+		clock-names = "fck", "core_ref_clk", "ext_ref_clk";
+		num-lanes = <4>;
+		#reset-cells = <1>;
+		ranges = <0x5060000 0x0 0x5060000 0x10000>;
+
+		assigned-clocks = <&k3_clks 365 3>;
+		assigned-clock-parents = <&k3_clks 365 7>;
+
+		wiz0_pll0_refclk: pll0-refclk {
+			clocks = <&k3_clks 365 3>, <&serdes_refclk>;
+			clock-output-names = "wiz0_pll0_refclk";
+			#clock-cells = <0>;
+			assigned-clocks = <&wiz0_pll0_refclk>;
+			assigned-clock-parents = <&k3_clks 365 3>;
+		};
+
+		wiz0_pll1_refclk: pll1-refclk {
+			clocks = <&k3_clks 365 3>, <&serdes_refclk>;
+			clock-output-names = "wiz0_pll1_refclk";
+			#clock-cells = <0>;
+			assigned-clocks = <&wiz0_pll1_refclk>;
+			assigned-clock-parents = <&k3_clks 365 3>;
+		};
+
+		wiz0_refclk_dig: refclk-dig {
+			clocks = <&k3_clks 365 3>, <&serdes_refclk>;
+			clock-output-names = "wiz0_refclk_dig";
+			#clock-cells = <0>;
+			assigned-clocks = <&wiz0_refclk_dig>;
+			assigned-clock-parents = <&k3_clks 365 3>;
+		};
+
+		wiz0_cmn_refclk_dig_div: cmn-refclk-dig-div {
+			clocks = <&wiz0_refclk_dig>;
+			#clock-cells = <0>;
+		};
+
+		serdes0: serdes@...0000 {
+			compatible = "ti,j721e-serdes-10g";
+			reg = <0x05060000 0x00010000>;
+			reg-names = "torrent_phy";
+			resets = <&serdes_wiz0 0>;
+			reset-names = "torrent_reset";
+			clocks = <&wiz0_pll0_refclk>;
+			clock-names = "refclk";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+
 	main_mcan0: can@...1000 {
 		compatible = "bosch,m_can";
 		reg = <0x00 0x02701000 0x00 0x200>,
-- 
2.17.1