linux-kernel - [PATCH v2 2/6] arm64: dts: ti: k3-am64-main: Add SERDES DT node

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Date:   Mon, 17 May 2021 11:47:35 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Lokesh Vutla <lokeshvutla@...com>, <a-govindraju@...com>
Subject: [PATCH v2 2/6] arm64: dts: ti: k3-am64-main: Add SERDES DT node

AM64 has one SERDES 10G instance. Add SERDES DT node for it.

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 56 ++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index b2bcbf23eefd..d4b0ddcc22ed 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -5,6 +5,17 @@
  * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
  */
 
+#include <dt-bindings/phy/phy-cadence.h>
+#include <dt-bindings/phy/phy-ti.h>
+
+/ {
+	serdes_refclk: clock {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <0>;
+	};
+};
+
 &cbass_main {
 	oc_sram: sram@...00000 {
 		compatible = "mmio-sram";
@@ -18,6 +29,20 @@
 		};
 	};
 
+	main_conf: syscon@...00000 {
+		compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
+		reg = <0x0 0x43000000 0x0 0x20000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x0 0x43000000 0x20000>;
+
+		serdes_ln_ctrl: mux {
+			compatible = "mmio-mux";
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x4080 0x3>; /* SERDES0 lane0 select */
+		};
+	};
+
 	gic500: interrupt-controller@...0000 {
 		compatible = "arm,gic-v3";
 		#address-cells = <2>;
@@ -672,4 +697,35 @@
 		ti,mbox-num-users = <4>;
 		ti,mbox-num-fifos = <16>;
 	};
+
+	serdes_wiz0: wiz@...0000 {
+		compatible = "ti,am64-wiz-10g";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		power-domains = <&k3_pds 162 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 162 0>, <&k3_clks 162 1>, <&serdes_refclk>;
+		clock-names = "fck", "core_ref_clk", "ext_ref_clk";
+		num-lanes = <1>;
+		#reset-cells = <1>;
+		#clock-cells = <1>;
+		ranges = <0x0f000000 0x0 0x0f000000 0x00010000>;
+
+		assigned-clocks = <&k3_clks 162 1>;
+		assigned-clock-parents = <&k3_clks 162 5>;
+
+		serdes0: serdes@...0000 {
+			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 162 1>, <&k3_clks 162 1>, <&k3_clks 162 1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#clock-cells = <1>;
+		};
+	};
 };
-- 
2.17.1