139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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#include <linux/module.h>
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#include <linux/phylink.h>
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#include <linux/device.h>
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#include <linux/netdevice.h>
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#include <linux/phy/phy.h>
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#include "lan966x_main.h"
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static struct phylink_pcs *lan966x_phylink_mac_select(struct phylink_config *config,
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phy_interface_t interface)
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{
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struct lan966x_port *port = netdev_priv(to_net_dev(config->dev));
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return &port->phylink_pcs;
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}
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static void lan966x_phylink_mac_config(struct phylink_config *config,
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unsigned int mode,
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const struct phylink_link_state *state)
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{
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}
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static int lan966x_phylink_mac_prepare(struct phylink_config *config,
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unsigned int mode,
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phy_interface_t iface)
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{
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struct lan966x_port *port = netdev_priv(to_net_dev(config->dev));
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phy_interface_t serdes_mode = iface;
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int err;
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if (port->serdes) {
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err = phy_set_mode_ext(port->serdes, PHY_MODE_ETHERNET,
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serdes_mode);
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if (err) {
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netdev_err(to_net_dev(config->dev),
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"Could not set mode of SerDes\n");
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return err;
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}
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}
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return 0;
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}
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static void lan966x_phylink_mac_link_up(struct phylink_config *config,
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struct phy_device *phy,
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unsigned int mode,
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phy_interface_t interface,
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int speed, int duplex,
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bool tx_pause, bool rx_pause)
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{
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struct lan966x_port *port = netdev_priv(to_net_dev(config->dev));
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struct lan966x_port_config *port_config = &port->config;
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port_config->duplex = duplex;
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port_config->speed = speed;
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port_config->pause = 0;
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port_config->pause |= tx_pause ? MLO_PAUSE_TX : 0;
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port_config->pause |= rx_pause ? MLO_PAUSE_RX : 0;
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if (phy_interface_mode_is_rgmii(interface))
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phy_set_speed(port->serdes, speed);
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lan966x_port_config_up(port);
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}
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static void lan966x_phylink_mac_link_down(struct phylink_config *config,
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unsigned int mode,
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phy_interface_t interface)
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{
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struct lan966x_port *port = netdev_priv(to_net_dev(config->dev));
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struct lan966x *lan966x = port->lan966x;
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lan966x_port_config_down(port);
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/* Take PCS out of reset */
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lan_rmw(DEV_CLOCK_CFG_PCS_RX_RST_SET(0) |
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DEV_CLOCK_CFG_PCS_TX_RST_SET(0),
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DEV_CLOCK_CFG_PCS_RX_RST |
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DEV_CLOCK_CFG_PCS_TX_RST,
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lan966x, DEV_CLOCK_CFG(port->chip_port));
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}
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static struct lan966x_port *lan966x_pcs_to_port(struct phylink_pcs *pcs)
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{
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return container_of(pcs, struct lan966x_port, phylink_pcs);
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}
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static void lan966x_pcs_get_state(struct phylink_pcs *pcs,
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struct phylink_link_state *state)
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{
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struct lan966x_port *port = lan966x_pcs_to_port(pcs);
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lan966x_port_status_get(port, state);
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}
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static int lan966x_pcs_config(struct phylink_pcs *pcs,
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unsigned int mode,
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phy_interface_t interface,
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const unsigned long *advertising,
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bool permit_pause_to_mac)
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{
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struct lan966x_port *port = lan966x_pcs_to_port(pcs);
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struct lan966x_port_config config;
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int ret;
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config = port->config;
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config.portmode = interface;
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config.inband = phylink_autoneg_inband(mode);
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config.autoneg = phylink_test(advertising, Autoneg);
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config.advertising = advertising;
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ret = lan966x_port_pcs_set(port, &config);
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if (ret)
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netdev_err(port->dev, "port PCS config failed: %d\n", ret);
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return ret;
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}
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static void lan966x_pcs_aneg_restart(struct phylink_pcs *pcs)
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{
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/* Currently not used */
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}
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const struct phylink_mac_ops lan966x_phylink_mac_ops = {
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.mac_select_pcs = lan966x_phylink_mac_select,
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.mac_config = lan966x_phylink_mac_config,
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.mac_prepare = lan966x_phylink_mac_prepare,
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.mac_link_down = lan966x_phylink_mac_link_down,
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.mac_link_up = lan966x_phylink_mac_link_up,
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};
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const struct phylink_pcs_ops lan966x_phylink_pcs_ops = {
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.pcs_get_state = lan966x_pcs_get_state,
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.pcs_config = lan966x_pcs_config,
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.pcs_an_restart = lan966x_pcs_aneg_restart,
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};
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