linux-kernel - [PATCH v2 2/6] arm64: dts: ti: k3-j721s2-main: Add SERDES and WIZ device tree node

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Date:   Wed, 7 Sep 2022 18:20:27 -0700
From:   Matt Ranostay <mranostay@...com>
To:     <vigneshr@...com>, <nm@...com>
CC:     <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, Matt Ranostay <mranostay@...com>
Subject: [PATCH v2 2/6] arm64: dts: ti: k3-j721s2-main: Add SERDES and WIZ device tree node

From: Aswath Govindraju <a-govindraju@...com>

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

Cc: Vignesh Raghavendra <vigneshr@...com>
Cc: Nishanth Menon <nm@...com>
Acked-by: Matt Ranostay <mranostay@...com>
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 1f178ad3fa42..6ca36f9075a5 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: clock-cmnrefclk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+	};
+};
+
 &cbass_main {
 	msmc_ram: sram@...00000 {
 		compatible = "mmio-sram";
@@ -38,6 +45,13 @@ usb_serdes_mux: mux-controller-0 {
 			#mux-control-cells = <1>;
 			mux-reg-masks = <0x0 0x8000000>; /* USB0 to SERDES0 lane 1/3 mux */
 		};
+
+		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 */
+		};
 	};
 
 	gic500: interrupt-controller@...0000 {
@@ -728,6 +742,62 @@ usb0: usb@...0000 {
 		};
 	};
 
+	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: clock-refpll0 {
+			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: clock-refpll1 {
+			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: clock-refdig {
+			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: clock-cmnref-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>,
-- 
2.30.2