1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
4 #include <linux/ethtool.h>
5 #include <linux/iopoll.h>
9 #include "../libwx/wx_type.h"
10 #include "../libwx/wx_hw.h"
11 #include "ngbe_type.h"
12 #include "ngbe_mdio.h"
14 static int ngbe_phy_read_reg_internal(struct mii_bus *bus, int phy_addr, int regnum)
16 struct wx *wx = bus->priv;
20 return (u16)rd32(wx, NGBE_PHY_CONFIG(regnum));
23 static int ngbe_phy_write_reg_internal(struct mii_bus *bus, int phy_addr, int regnum, u16 value)
25 struct wx *wx = bus->priv;
28 wr32(wx, NGBE_PHY_CONFIG(regnum), value);
32 static int ngbe_phy_read_reg_c22(struct mii_bus *bus, int phy_addr, int regnum)
34 struct wx *wx = bus->priv;
37 if (wx->mac_type == em_mac_type_mdi)
38 phy_data = ngbe_phy_read_reg_internal(bus, phy_addr, regnum);
40 phy_data = wx_phy_read_reg_mdi_c22(bus, phy_addr, regnum);
45 static int ngbe_phy_write_reg_c22(struct mii_bus *bus, int phy_addr,
46 int regnum, u16 value)
48 struct wx *wx = bus->priv;
51 if (wx->mac_type == em_mac_type_mdi)
52 ret = ngbe_phy_write_reg_internal(bus, phy_addr, regnum, value);
54 ret = wx_phy_write_reg_mdi_c22(bus, phy_addr, regnum, value);
59 static void ngbe_mac_config(struct phylink_config *config, unsigned int mode,
60 const struct phylink_link_state *state)
64 static void ngbe_mac_link_down(struct phylink_config *config,
65 unsigned int mode, phy_interface_t interface)
69 static void ngbe_mac_link_up(struct phylink_config *config,
70 struct phy_device *phy,
71 unsigned int mode, phy_interface_t interface,
72 int speed, int duplex,
73 bool tx_pause, bool rx_pause)
75 struct wx *wx = phylink_to_wx(config);
78 wx_fc_enable(wx, tx_pause, rx_pause);
93 wr32m(wx, NGBE_CFG_LAN_SPEED, 0x3, lan_speed);
95 reg = rd32(wx, WX_MAC_TX_CFG);
96 reg &= ~WX_MAC_TX_CFG_SPEED_MASK;
97 reg |= WX_MAC_TX_CFG_SPEED_1G | WX_MAC_TX_CFG_TE;
98 wr32(wx, WX_MAC_TX_CFG, reg);
100 /* Re configure MAC Rx */
101 reg = rd32(wx, WX_MAC_RX_CFG);
102 wr32(wx, WX_MAC_RX_CFG, reg);
103 wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
104 reg = rd32(wx, WX_MAC_WDG_TIMEOUT);
105 wr32(wx, WX_MAC_WDG_TIMEOUT, reg);
108 static const struct phylink_mac_ops ngbe_mac_ops = {
109 .mac_config = ngbe_mac_config,
110 .mac_link_down = ngbe_mac_link_down,
111 .mac_link_up = ngbe_mac_link_up,
114 static int ngbe_phylink_init(struct wx *wx)
116 struct phylink_config *config;
117 phy_interface_t phy_mode;
118 struct phylink *phylink;
120 config = &wx->phylink_config;
121 config->dev = &wx->netdev->dev;
122 config->type = PHYLINK_NETDEV;
123 config->mac_capabilities = MAC_1000FD | MAC_100FD | MAC_10FD |
124 MAC_SYM_PAUSE | MAC_ASYM_PAUSE;
125 config->mac_managed_pm = true;
127 phy_mode = PHY_INTERFACE_MODE_RGMII_ID;
128 __set_bit(PHY_INTERFACE_MODE_RGMII_ID, config->supported_interfaces);
130 phylink = phylink_create(config, NULL, phy_mode, &ngbe_mac_ops);
132 return PTR_ERR(phylink);
134 wx->phylink = phylink;
139 int ngbe_mdio_init(struct wx *wx)
141 struct pci_dev *pdev = wx->pdev;
142 struct mii_bus *mii_bus;
145 mii_bus = devm_mdiobus_alloc(&pdev->dev);
149 mii_bus->name = "ngbe_mii_bus";
150 mii_bus->read = ngbe_phy_read_reg_c22;
151 mii_bus->write = ngbe_phy_write_reg_c22;
152 mii_bus->phy_mask = GENMASK(31, 4);
153 mii_bus->parent = &pdev->dev;
156 if (wx->mac_type == em_mac_type_rgmii) {
157 mii_bus->read_c45 = wx_phy_read_reg_mdi_c45;
158 mii_bus->write_c45 = wx_phy_write_reg_mdi_c45;
161 snprintf(mii_bus->id, MII_BUS_ID_SIZE, "ngbe-%x", pci_dev_id(pdev));
162 ret = devm_mdiobus_register(&pdev->dev, mii_bus);
166 wx->phydev = phy_find_first(mii_bus);
170 phy_attached_info(wx->phydev);
176 ret = ngbe_phylink_init(wx);
178 wx_err(wx, "failed to init phylink: %d\n", ret);