1// SPDX-License-Identifier: GPL-2.0
2/**
3 * DT Overlay for CPSW9G in QSGMII mode using J7 Quad Port ETH EXP Add-On Ethernet Card with
4 * J721E board.
5 *
6 * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
7 */
8
9/dts-v1/;
10/plugin/;
11
12#include <dt-bindings/gpio/gpio.h>
13#include <dt-bindings/mux/ti-serdes.h>
14#include <dt-bindings/phy/phy.h>
15#include <dt-bindings/phy/phy-cadence.h>
16
17#include "k3-pinctrl.h"
18
19&{/} {
20	aliases {
21		ethernet1 = "/bus@100000/ethernet@c000000/ethernet-ports/port@1";
22		ethernet2 = "/bus@100000/ethernet@c000000/ethernet-ports/port@2";
23		ethernet3 = "/bus@100000/ethernet@c000000/ethernet-ports/port@3";
24		ethernet4 = "/bus@100000/ethernet@c000000/ethernet-ports/port@4";
25	};
26};
27
28&cpsw0 {
29	status = "okay";
30};
31
32&cpsw0_port1 {
33	status = "okay";
34	phy-handle = <&cpsw9g_phy0>;
35	phy-mode = "qsgmii";
36	mac-address = [00 00 00 00 00 00];
37	phys = <&cpsw0_phy_gmii_sel 1>;
38};
39
40&cpsw0_port2 {
41	status = "okay";
42	phy-handle = <&cpsw9g_phy1>;
43	phy-mode = "qsgmii";
44	mac-address = [00 00 00 00 00 00];
45	phys = <&cpsw0_phy_gmii_sel 2>;
46};
47
48&cpsw0_port3 {
49	status = "okay";
50	phy-handle = <&cpsw9g_phy2>;
51	phy-mode = "qsgmii";
52	mac-address = [00 00 00 00 00 00];
53	phys = <&cpsw0_phy_gmii_sel 3>;
54};
55
56&cpsw0_port4 {
57	status = "okay";
58	phy-handle = <&cpsw9g_phy3>;
59	phy-mode = "qsgmii";
60	mac-address = [00 00 00 00 00 00];
61	phys = <&cpsw0_phy_gmii_sel 4>;
62};
63
64&cpsw9g_mdio {
65	status = "okay";
66	pinctrl-names = "default";
67	pinctrl-0 = <&mdio0_pins_default>;
68	reset-gpios = <&exp2 17 GPIO_ACTIVE_LOW>;
69	reset-post-delay-us = <120000>;
70	#address-cells = <1>;
71	#size-cells = <0>;
72
73	cpsw9g_phy0: ethernet-phy@17 {
74		reg = <17>;
75	};
76	cpsw9g_phy1: ethernet-phy@16 {
77		reg = <16>;
78	};
79	cpsw9g_phy2: ethernet-phy@18 {
80		reg = <18>;
81	};
82	cpsw9g_phy3: ethernet-phy@19 {
83		reg = <19>;
84	};
85};
86
87&exp2 {
88	qsgmii-line-hog {
89		gpio-hog;
90		gpios = <16 GPIO_ACTIVE_HIGH>;
91		output-low;
92		line-name = "qsgmii-pwrdn-line";
93	};
94};
95
96&main_pmx0 {
97	mdio0_pins_default: mdio0-pins-default {
98		pinctrl-single,pins = <
99			J721E_IOPAD(0x1bc, PIN_OUTPUT, 0) /* (V24) MDIO0_MDC */
100			J721E_IOPAD(0x1b8, PIN_INPUT, 0) /* (V26) MDIO0_MDIO */
101		>;
102	};
103};
104
105&serdes_ln_ctrl {
106	idle-states = <J721E_SERDES0_LANE0_PCIE0_LANE0>, <J721E_SERDES0_LANE1_QSGMII_LANE2>,
107		      <J721E_SERDES1_LANE0_PCIE1_LANE0>, <J721E_SERDES1_LANE1_PCIE1_LANE1>,
108		      <J721E_SERDES2_LANE0_PCIE2_LANE0>, <J721E_SERDES2_LANE1_PCIE2_LANE1>,
109		      <J721E_SERDES3_LANE0_USB3_0_SWAP>, <J721E_SERDES3_LANE1_USB3_0>,
110		      <J721E_SERDES4_LANE0_EDP_LANE0>, <J721E_SERDES4_LANE1_EDP_LANE1>,
111		      <J721E_SERDES4_LANE2_EDP_LANE2>, <J721E_SERDES4_LANE3_EDP_LANE3>;
112};
113
114&serdes_wiz0 {
115	status = "okay";
116};
117
118&serdes0 {
119	status = "okay";
120
121	assigned-clocks = <&serdes0 CDNS_SIERRA_PLL_CMNLC>, <&serdes0 CDNS_SIERRA_PLL_CMNLC1>;
122	assigned-clock-parents = <&wiz0_pll1_refclk>, <&wiz0_pll1_refclk>;
123	#address-cells = <1>;
124	#size-cells = <0>;
125
126	serdes0_qsgmii_link: phy@1 {
127		reg = <1>;
128		cdns,num-lanes = <1>;
129		#phy-cells = <0>;
130		cdns,phy-type = <PHY_TYPE_QSGMII>;
131		resets = <&serdes_wiz0 2>;
132	};
133};
134