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-rw-r--r--target/linux/layerscape/patches-5.4/701-net-0281-net-mscc-ocelot-convert-to-PHYLINK.patch689
1 files changed, 689 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0281-net-mscc-ocelot-convert-to-PHYLINK.patch b/target/linux/layerscape/patches-5.4/701-net-0281-net-mscc-ocelot-convert-to-PHYLINK.patch
new file mode 100644
index 0000000000..fcf28b8667
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0281-net-mscc-ocelot-convert-to-PHYLINK.patch
@@ -0,0 +1,689 @@
+From 0a2b7489bf60d24a54e16147b416f339ebe4f511 Mon Sep 17 00:00:00 2001
+From: Vladimir Oltean <vladimir.oltean@nxp.com>
+Date: Mon, 18 Nov 2019 18:05:01 +0200
+Subject: [PATCH] net: mscc: ocelot: convert to PHYLINK
+
+This patch reworks ocelot_board.c (aka the MIPS on the VSC7514) to
+register a PHYLINK instance for each port. The registration code is
+local to the VSC7514, but the PHYLINK callback implementation is common
+so that the Felix DSA front-end can use it as well (but DSA does its own
+registration).
+
+Now Felix can use native PHYLINK callbacks instead of the PHYLIB
+adaptation layer in DSA, which had issues supporting fixed-link slave
+ports (no struct phy_device to pass to the adjust_link callback), as
+well as fixed-link CPU port at 2.5Gbps.
+
+The old code from ocelot_port_enable and ocelot_port_disable has been
+moved into ocelot_phylink_mac_link_up and ocelot_phylink_mac_link_down.
+
+The PHY connect operation has been moved from ocelot_port_open to
+mscc_ocelot_probe in ocelot_board.c.
+
+The phy_set_mode_ext() call for the SerDes PHY has also been moved into
+mscc_ocelot_probe from ocelot_port_open, and since that was the only
+reason why a reference to it was kept in ocelot_port_private, that
+reference was removed.
+
+Again, the usage of phy_interface_t phy_mode is now local to
+mscc_ocelot_probe only, after moving the PHY connect operation.
+So it was also removed from ocelot_port_private.
+*Maybe* in the future, it can be added back to the common struct
+ocelot_port, with the purpose of validating mismatches between
+state->phy_interface and ocelot_port->phy_mode in PHYLINK callbacks.
+But at the moment that is not critical, since other DSA drivers are not
+doing that either. No SFP+ modules are in use with Felix/Ocelot yet, to
+my knowledge.
+
+In-band AN is not yet supported, due to the fact that this is a mostly
+mechanical patch for the moment. The mac_an_restart PHYLINK operation
+needs to be implemented, as well as mac_link_state. Both are SerDes
+specific, and Felix does not have its PCS configured yet (it works just
+by virtue of U-Boot initialization at the moment).
+
+Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
+---
+ drivers/net/dsa/ocelot/felix.c | 65 +++++++++----
+ drivers/net/ethernet/mscc/Kconfig | 2 +-
+ drivers/net/ethernet/mscc/ocelot.c | 150 ++++++++++++++++--------------
+ drivers/net/ethernet/mscc/ocelot.h | 13 +--
+ drivers/net/ethernet/mscc/ocelot_board.c | 154 +++++++++++++++++++++++++++----
+ include/soc/mscc/ocelot.h | 22 ++++-
+ 6 files changed, 289 insertions(+), 117 deletions(-)
+
+--- a/drivers/net/dsa/ocelot/felix.c
++++ b/drivers/net/dsa/ocelot/felix.c
+@@ -58,14 +58,6 @@ static int felix_set_ageing_time(struct
+ return 0;
+ }
+
+-static void felix_adjust_link(struct dsa_switch *ds, int port,
+- struct phy_device *phydev)
+-{
+- struct ocelot *ocelot = ds->priv;
+-
+- ocelot_adjust_link(ocelot, port, phydev);
+-}
+-
+ static int felix_fdb_dump(struct dsa_switch *ds, int port,
+ dsa_fdb_dump_cb_t *cb, void *data)
+ {
+@@ -185,21 +177,59 @@ static int felix_tsn_enable(struct dsa_p
+ }
+ #endif
+
+-static int felix_port_enable(struct dsa_switch *ds, int port,
+- struct phy_device *phy)
++static void felix_phylink_validate(struct dsa_switch *ds, int port,
++ unsigned long *supported,
++ struct phylink_link_state *state)
+ {
+ struct ocelot *ocelot = ds->priv;
+
+- ocelot_port_enable(ocelot, port, phy);
++ ocelot_phylink_validate(ocelot, port, supported, state);
++}
++
++static int felix_phylink_mac_pcs_get_state(struct dsa_switch *ds, int port,
++ struct phylink_link_state *state)
++{
++ struct ocelot *ocelot = ds->priv;
++
++ ocelot_phylink_mac_pcs_get_state(ocelot, port, state);
+
+ return 0;
+ }
+
+-static void felix_port_disable(struct dsa_switch *ds, int port)
++static void felix_phylink_mac_config(struct dsa_switch *ds, int port,
++ unsigned int link_an_mode,
++ const struct phylink_link_state *state)
++{
++ struct ocelot *ocelot = ds->priv;
++
++ ocelot_phylink_mac_config(ocelot, port, link_an_mode, state);
++}
++
++static void felix_phylink_mac_an_restart(struct dsa_switch *ds, int port)
++{
++ struct ocelot *ocelot = ds->priv;
++
++ ocelot_phylink_mac_an_restart(ocelot, port);
++}
++
++static void felix_phylink_mac_link_down(struct dsa_switch *ds, int port,
++ unsigned int link_an_mode,
++ phy_interface_t interface)
++{
++ struct ocelot *ocelot = ds->priv;
++
++ ocelot_phylink_mac_link_down(ocelot, port, link_an_mode, interface);
++}
++
++static void felix_phylink_mac_link_up(struct dsa_switch *ds, int port,
++ unsigned int link_an_mode,
++ phy_interface_t interface,
++ struct phy_device *phydev)
+ {
+ struct ocelot *ocelot = ds->priv;
+
+- return ocelot_port_disable(ocelot, port);
++ ocelot_phylink_mac_link_up(ocelot, port, link_an_mode, interface,
++ phydev);
+ }
+
+ static void felix_get_strings(struct dsa_switch *ds, int port,
+@@ -417,9 +447,12 @@ static const struct dsa_switch_ops felix
+ .get_ethtool_stats = felix_get_ethtool_stats,
+ .get_sset_count = felix_get_sset_count,
+ .get_ts_info = felix_get_ts_info,
+- .adjust_link = felix_adjust_link,
+- .port_enable = felix_port_enable,
+- .port_disable = felix_port_disable,
++ .phylink_validate = felix_phylink_validate,
++ .phylink_mac_link_state = felix_phylink_mac_pcs_get_state,
++ .phylink_mac_config = felix_phylink_mac_config,
++ .phylink_mac_an_restart = felix_phylink_mac_an_restart,
++ .phylink_mac_link_down = felix_phylink_mac_link_down,
++ .phylink_mac_link_up = felix_phylink_mac_link_up,
+ .port_fdb_dump = felix_fdb_dump,
+ .port_fdb_add = felix_fdb_add,
+ .port_fdb_del = felix_fdb_del,
+--- a/drivers/net/ethernet/mscc/Kconfig
++++ b/drivers/net/ethernet/mscc/Kconfig
+@@ -15,7 +15,7 @@ config MSCC_OCELOT_SWITCH
+ tristate "Ocelot switch driver"
+ depends on NET_SWITCHDEV
+ depends on HAS_IOMEM
+- select PHYLIB
++ select PHYLINK
+ select REGMAP_MMIO
+ help
+ This driver supports the Ocelot network switch device.
+--- a/drivers/net/ethernet/mscc/ocelot.c
++++ b/drivers/net/ethernet/mscc/ocelot.c
+@@ -13,7 +13,7 @@
+ #include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/netdevice.h>
+-#include <linux/phy.h>
++#include <linux/phylink.h>
+ #include <linux/ptp_clock_kernel.h>
+ #include <linux/skbuff.h>
+ #include <linux/iopoll.h>
+@@ -406,18 +406,66 @@ static u16 ocelot_wm_enc(u16 value)
+ return value;
+ }
+
+-void ocelot_adjust_link(struct ocelot *ocelot, int port,
+- struct phy_device *phydev)
++void ocelot_phylink_validate(struct ocelot *ocelot, int port,
++ unsigned long *supported,
++ struct phylink_link_state *state)
++{
++ __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
++
++ if (state->interface != PHY_INTERFACE_MODE_NA &&
++ state->interface != PHY_INTERFACE_MODE_GMII &&
++ state->interface != PHY_INTERFACE_MODE_SGMII &&
++ state->interface != PHY_INTERFACE_MODE_QSGMII) {
++ bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS);
++ return;
++ }
++
++ /* No half-duplex. */
++ phylink_set_port_modes(mask);
++ phylink_set(mask, Autoneg);
++ phylink_set(mask, Pause);
++ phylink_set(mask, Asym_Pause);
++ phylink_set(mask, 10baseT_Full);
++ phylink_set(mask, 100baseT_Full);
++ phylink_set(mask, 1000baseT_Full);
++ phylink_set(mask, 2500baseT_Full);
++
++ bitmap_and(supported, supported, mask,
++ __ETHTOOL_LINK_MODE_MASK_NBITS);
++ bitmap_and(state->advertising, state->advertising, mask,
++ __ETHTOOL_LINK_MODE_MASK_NBITS);
++}
++EXPORT_SYMBOL(ocelot_phylink_validate);
++
++void ocelot_phylink_mac_pcs_get_state(struct ocelot *ocelot, int port,
++ struct phylink_link_state *state)
++{
++ state->link = 1;
++}
++EXPORT_SYMBOL(ocelot_phylink_mac_pcs_get_state);
++
++void ocelot_phylink_mac_an_restart(struct ocelot *ocelot, int port)
++{
++ /* Not supported */
++}
++EXPORT_SYMBOL(ocelot_phylink_mac_an_restart);
++
++void ocelot_phylink_mac_config(struct ocelot *ocelot, int port,
++ unsigned int link_an_mode,
++ const struct phylink_link_state *state)
+ {
+ int speed, mac_speed, mac_mode = DEV_MAC_MODE_CFG_FDX_ENA;
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
++ u32 mac_fc_cfg;
+
+ if (ocelot->quirks & OCELOT_PCS_PERFORMS_RATE_ADAPTATION)
+ speed = SPEED_1000;
+ else
+- speed = phydev->speed;
++ speed = state->speed;
+
+ switch (speed) {
++ case SPEED_UNKNOWN:
++ return;
+ case SPEED_10:
+ mac_speed = OCELOT_SPEED_10;
+ break;
+@@ -433,16 +481,11 @@ void ocelot_adjust_link(struct ocelot *o
+ mac_mode |= DEV_MAC_MODE_CFG_GIGA_MODE_ENA;
+ break;
+ default:
+- dev_err(ocelot->dev, "Unsupported PHY speed on port %d: %d\n",
++ dev_err(ocelot->dev, "Unsupported speed on port %d: %d\n",
+ port, speed);
+ return;
+ }
+
+- phy_print_status(phydev);
+-
+- if (!phydev->link)
+- return;
+-
+ /* Only full duplex supported for now */
+ ocelot_port_writel(ocelot_port, mac_mode, DEV_MAC_MODE_CFG);
+
+@@ -469,27 +512,36 @@ void ocelot_adjust_link(struct ocelot *o
+ QSYS_SWITCH_PORT_MODE, port);
+
+ /* Flow control */
+- ocelot_write_rix(ocelot, SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
+- SYS_MAC_FC_CFG_RX_FC_ENA | SYS_MAC_FC_CFG_TX_FC_ENA |
+- SYS_MAC_FC_CFG_ZERO_PAUSE_ENA |
+- SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) |
+- SYS_MAC_FC_CFG_FC_LINK_SPEED(mac_speed),
+- SYS_MAC_FC_CFG, port);
++ mac_fc_cfg = SYS_MAC_FC_CFG_FC_LINK_SPEED(mac_speed);
++ if (state->pause & MLO_PAUSE_RX)
++ mac_fc_cfg |= SYS_MAC_FC_CFG_RX_FC_ENA;
++ if (state->pause & MLO_PAUSE_TX)
++ mac_fc_cfg |= SYS_MAC_FC_CFG_TX_FC_ENA |
++ SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) |
++ SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) |
++ SYS_MAC_FC_CFG_ZERO_PAUSE_ENA;
++ ocelot_write_rix(ocelot, mac_fc_cfg, SYS_MAC_FC_CFG, port);
++
+ ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port);
+ }
+-EXPORT_SYMBOL(ocelot_adjust_link);
++EXPORT_SYMBOL(ocelot_phylink_mac_config);
+
+-static void ocelot_port_adjust_link(struct net_device *dev)
++void ocelot_phylink_mac_link_down(struct ocelot *ocelot, int port,
++ unsigned int link_an_mode,
++ phy_interface_t interface)
+ {
+- struct ocelot_port_private *priv = netdev_priv(dev);
+- struct ocelot *ocelot = priv->port.ocelot;
+- int port = priv->chip_port;
++ struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+- ocelot_adjust_link(ocelot, port, dev->phydev);
++ ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG);
++ ocelot_rmw_rix(ocelot, 0, QSYS_SWITCH_PORT_MODE_PORT_ENA,
++ QSYS_SWITCH_PORT_MODE, port);
+ }
++EXPORT_SYMBOL(ocelot_phylink_mac_link_down);
+
+-void ocelot_port_enable(struct ocelot *ocelot, int port,
+- struct phy_device *phy)
++void ocelot_phylink_mac_link_up(struct ocelot *ocelot, int port,
++ unsigned int link_an_mode,
++ phy_interface_t interface,
++ struct phy_device *phy)
+ {
+ /* Enable receiving frames on the port, and activate auto-learning of
+ * MAC addresses.
+@@ -499,62 +551,22 @@ void ocelot_port_enable(struct ocelot *o
+ ANA_PORT_PORT_CFG_PORTID_VAL(port),
+ ANA_PORT_PORT_CFG, port);
+ }
+-EXPORT_SYMBOL(ocelot_port_enable);
++EXPORT_SYMBOL(ocelot_phylink_mac_link_up);
+
+ static int ocelot_port_open(struct net_device *dev)
+ {
+ struct ocelot_port_private *priv = netdev_priv(dev);
+- struct ocelot *ocelot = priv->port.ocelot;
+- int port = priv->chip_port;
+- int err;
+-
+- if (priv->serdes) {
+- err = phy_set_mode_ext(priv->serdes, PHY_MODE_ETHERNET,
+- priv->phy_mode);
+- if (err) {
+- netdev_err(dev, "Could not set mode of SerDes\n");
+- return err;
+- }
+- }
+-
+- err = phy_connect_direct(dev, priv->phy, &ocelot_port_adjust_link,
+- priv->phy_mode);
+- if (err) {
+- netdev_err(dev, "Could not attach to PHY\n");
+- return err;
+- }
+
+- dev->phydev = priv->phy;
+-
+- phy_attached_info(priv->phy);
+- phy_start(priv->phy);
+-
+- ocelot_port_enable(ocelot, port, priv->phy);
++ phylink_start(priv->phylink);
+
+ return 0;
+ }
+
+-void ocelot_port_disable(struct ocelot *ocelot, int port)
+-{
+- struct ocelot_port *ocelot_port = ocelot->ports[port];
+-
+- ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG);
+- ocelot_rmw_rix(ocelot, 0, QSYS_SWITCH_PORT_MODE_PORT_ENA,
+- QSYS_SWITCH_PORT_MODE, port);
+-}
+-EXPORT_SYMBOL(ocelot_port_disable);
+-
+ static int ocelot_port_stop(struct net_device *dev)
+ {
+ struct ocelot_port_private *priv = netdev_priv(dev);
+- struct ocelot *ocelot = priv->port.ocelot;
+- int port = priv->chip_port;
+-
+- phy_disconnect(priv->phy);
+-
+- dev->phydev = NULL;
+
+- ocelot_port_disable(ocelot, port);
++ phylink_stop(priv->phylink);
+
+ return 0;
+ }
+@@ -2251,8 +2263,7 @@ void ocelot_init_port(struct ocelot *oce
+ EXPORT_SYMBOL(ocelot_init_port);
+
+ int ocelot_probe_port(struct ocelot *ocelot, u8 port,
+- void __iomem *regs,
+- struct phy_device *phy)
++ void __iomem *regs)
+ {
+ struct ocelot_port_private *priv;
+ struct ocelot_port *ocelot_port;
+@@ -2265,7 +2276,6 @@ int ocelot_probe_port(struct ocelot *oce
+ SET_NETDEV_DEV(dev, ocelot->dev);
+ priv = netdev_priv(dev);
+ priv->dev = dev;
+- priv->phy = phy;
+ priv->chip_port = port;
+ ocelot_port = &priv->port;
+ ocelot_port->ocelot = ocelot;
+--- a/drivers/net/ethernet/mscc/ocelot.h
++++ b/drivers/net/ethernet/mscc/ocelot.h
+@@ -12,8 +12,7 @@
+ #include <linux/etherdevice.h>
+ #include <linux/if_vlan.h>
+ #include <linux/net_tstamp.h>
+-#include <linux/phy.h>
+-#include <linux/phy/phy.h>
++#include <linux/phylink.h>
+ #include <linux/platform_device.h>
+ #include <linux/ptp_clock_kernel.h>
+ #include <linux/regmap.h>
+@@ -65,14 +64,12 @@ struct ocelot_multicast {
+ struct ocelot_port_private {
+ struct ocelot_port port;
+ struct net_device *dev;
+- struct phy_device *phy;
++ struct phylink *phylink;
++ struct phylink_config phylink_config;
+ u8 chip_port;
+
+ u8 vlan_aware;
+
+- phy_interface_t phy_mode;
+- struct phy *serdes;
+-
+ struct ocelot_port_tc tc;
+ };
+
+@@ -83,9 +80,7 @@ void ocelot_port_writel(struct ocelot_po
+ #define ocelot_field_read(ocelot, reg, val) regmap_field_read((ocelot)->regfields[(reg)], (val))
+
+ int ocelot_chip_init(struct ocelot *ocelot, const struct ocelot_ops *ops);
+-int ocelot_probe_port(struct ocelot *ocelot, u8 port,
+- void __iomem *regs,
+- struct phy_device *phy);
++int ocelot_probe_port(struct ocelot *ocelot, u8 port, void __iomem *regs);
+
+ void ocelot_set_cpu_port(struct ocelot *ocelot, int cpu,
+ enum ocelot_tag_prefix injection,
+--- a/drivers/net/ethernet/mscc/ocelot_board.c
++++ b/drivers/net/ethernet/mscc/ocelot_board.c
+@@ -13,6 +13,7 @@
+ #include <linux/mfd/syscon.h>
+ #include <linux/skbuff.h>
+ #include <net/switchdev.h>
++#include <linux/phy/phy.h>
+
+ #include "ocelot.h"
+
+@@ -262,6 +263,91 @@ static const struct ocelot_ops ocelot_op
+ .reset = ocelot_reset,
+ };
+
++static void ocelot_port_phylink_validate(struct phylink_config *config,
++ unsigned long *supported,
++ struct phylink_link_state *state)
++{
++ struct net_device *ndev = to_net_dev(config->dev);
++ struct ocelot_port_private *priv = netdev_priv(ndev);
++ struct ocelot *ocelot = priv->port.ocelot;
++ int port = priv->chip_port;
++
++ ocelot_phylink_validate(ocelot, port, supported, state);
++}
++
++static int
++ocelot_port_phylink_mac_pcs_get_state(struct phylink_config *config,
++ struct phylink_link_state *state)
++{
++ struct net_device *ndev = to_net_dev(config->dev);
++ struct ocelot_port_private *priv = netdev_priv(ndev);
++ struct ocelot *ocelot = priv->port.ocelot;
++ int port = priv->chip_port;
++
++ ocelot_phylink_mac_pcs_get_state(ocelot, port, state);
++
++ return 0;
++}
++
++static void ocelot_port_phylink_mac_an_restart(struct phylink_config *config)
++{
++ struct net_device *ndev = to_net_dev(config->dev);
++ struct ocelot_port_private *priv = netdev_priv(ndev);
++ struct ocelot *ocelot = priv->port.ocelot;
++ int port = priv->chip_port;
++
++ ocelot_phylink_mac_an_restart(ocelot, port);
++}
++
++static void
++ocelot_port_phylink_mac_config(struct phylink_config *config,
++ unsigned int link_an_mode,
++ const struct phylink_link_state *state)
++{
++ struct net_device *ndev = to_net_dev(config->dev);
++ struct ocelot_port_private *priv = netdev_priv(ndev);
++ struct ocelot *ocelot = priv->port.ocelot;
++ int port = priv->chip_port;
++
++ ocelot_phylink_mac_config(ocelot, port, link_an_mode, state);
++}
++
++static void ocelot_port_phylink_mac_link_down(struct phylink_config *config,
++ unsigned int link_an_mode,
++ phy_interface_t interface)
++{
++ struct net_device *ndev = to_net_dev(config->dev);
++ struct ocelot_port_private *priv = netdev_priv(ndev);
++ struct ocelot *ocelot = priv->port.ocelot;
++ int port = priv->chip_port;
++
++ return ocelot_phylink_mac_link_down(ocelot, port, link_an_mode,
++ interface);
++}
++
++static void ocelot_port_phylink_mac_link_up(struct phylink_config *config,
++ unsigned int link_an_mode,
++ phy_interface_t interface,
++ struct phy_device *phy)
++{
++ struct net_device *ndev = to_net_dev(config->dev);
++ struct ocelot_port_private *priv = netdev_priv(ndev);
++ struct ocelot *ocelot = priv->port.ocelot;
++ int port = priv->chip_port;
++
++ return ocelot_phylink_mac_link_up(ocelot, port, link_an_mode,
++ interface, phy);
++}
++
++static const struct phylink_mac_ops ocelot_phylink_ops = {
++ .validate = ocelot_port_phylink_validate,
++ .mac_link_state = ocelot_port_phylink_mac_pcs_get_state,
++ .mac_an_restart = ocelot_port_phylink_mac_an_restart,
++ .mac_config = ocelot_port_phylink_mac_config,
++ .mac_link_down = ocelot_port_phylink_mac_link_down,
++ .mac_link_up = ocelot_port_phylink_mac_link_up,
++};
++
+ static int mscc_ocelot_probe(struct platform_device *pdev)
+ {
+ struct device_node *np = pdev->dev.of_node;
+@@ -369,8 +455,6 @@ static int mscc_ocelot_probe(struct plat
+ for_each_available_child_of_node(ports, portnp) {
+ struct ocelot_port_private *priv;
+ struct ocelot_port *ocelot_port;
+- struct device_node *phy_node;
+- struct phy_device *phy;
+ struct resource *res;
+ struct phy *serdes;
+ void __iomem *regs;
+@@ -389,16 +473,7 @@ static int mscc_ocelot_probe(struct plat
+ if (IS_ERR(regs))
+ continue;
+
+- phy_node = of_parse_phandle(portnp, "phy-handle", 0);
+- if (!phy_node)
+- continue;
+-
+- phy = of_phy_find_device(phy_node);
+- of_node_put(phy_node);
+- if (!phy)
+- continue;
+-
+- err = ocelot_probe_port(ocelot, port, regs, phy);
++ err = ocelot_probe_port(ocelot, port, regs);
+ if (err) {
+ of_node_put(portnp);
+ goto out_put_ports;
+@@ -412,9 +487,7 @@ static int mscc_ocelot_probe(struct plat
+ if (phy_mode < 0)
+ phy_mode = PHY_INTERFACE_MODE_NA;
+
+- priv->phy_mode = phy_mode;
+-
+- switch (priv->phy_mode) {
++ switch (phy_mode) {
+ case PHY_INTERFACE_MODE_NA:
+ continue;
+ case PHY_INTERFACE_MODE_SGMII:
+@@ -451,7 +524,41 @@ static int mscc_ocelot_probe(struct plat
+ goto out_put_ports;
+ }
+
+- priv->serdes = serdes;
++ if (serdes) {
++ err = phy_set_mode_ext(serdes, PHY_MODE_ETHERNET,
++ phy_mode);
++ if (err) {
++ dev_err(ocelot->dev,
++ "Could not set mode of SerDes\n");
++ of_node_put(portnp);
++ goto out_put_ports;
++ }
++ }
++
++ priv->phylink_config.dev = &priv->dev->dev;
++ priv->phylink_config.type = PHYLINK_NETDEV;
++
++ priv->phylink = phylink_create(&priv->phylink_config,
++ of_fwnode_handle(portnp),
++ phy_mode, &ocelot_phylink_ops);
++ if (IS_ERR(priv->phylink)) {
++ dev_err(ocelot->dev,
++ "Could not create a phylink instance (%ld)\n",
++ PTR_ERR(priv->phylink));
++ err = PTR_ERR(priv->phylink);
++ priv->phylink = NULL;
++ of_node_put(portnp);
++ goto out_put_ports;
++ }
++
++ err = phylink_of_phy_connect(priv->phylink, portnp, 0);
++ if (err) {
++ dev_err(ocelot->dev, "Could not connect to PHY: %d\n",
++ err);
++ phylink_destroy(priv->phylink);
++ of_node_put(portnp);
++ goto out_put_ports;
++ }
+ }
+
+ register_netdevice_notifier(&ocelot_netdevice_nb);
+@@ -468,12 +575,27 @@ out_put_ports:
+ static int mscc_ocelot_remove(struct platform_device *pdev)
+ {
+ struct ocelot *ocelot = platform_get_drvdata(pdev);
++ int port;
+
+ ocelot_deinit(ocelot);
+ unregister_switchdev_blocking_notifier(&ocelot_switchdev_blocking_nb);
+ unregister_switchdev_notifier(&ocelot_switchdev_nb);
+ unregister_netdevice_notifier(&ocelot_netdevice_nb);
+
++ for (port = 0; port < ocelot->num_phys_ports; port++) {
++ struct ocelot_port_private *priv;
++
++ priv = container_of(ocelot->ports[port],
++ struct ocelot_port_private,
++ port);
++
++ if (priv->phylink) {
++ rtnl_lock();
++ phylink_destroy(priv->phylink);
++ rtnl_unlock();
++ }
++ }
++
+ return 0;
+ }
+
+--- a/include/soc/mscc/ocelot.h
++++ b/include/soc/mscc/ocelot.h
+@@ -518,17 +518,12 @@ void ocelot_deinit(struct ocelot *ocelot
+ void ocelot_init_port(struct ocelot *ocelot, int port);
+
+ /* DSA callbacks */
+-void ocelot_port_enable(struct ocelot *ocelot, int port,
+- struct phy_device *phy);
+-void ocelot_port_disable(struct ocelot *ocelot, int port);
+ void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data);
+ void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data);
+ int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset);
+ int ocelot_get_ts_info(struct ocelot *ocelot, int port,
+ struct ethtool_ts_info *info);
+ void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs);
+-void ocelot_adjust_link(struct ocelot *ocelot, int port,
+- struct phy_device *phydev);
+ void ocelot_port_vlan_filtering(struct ocelot *ocelot, int port,
+ bool vlan_aware);
+ void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state);
+@@ -597,4 +592,21 @@ int ocelot_rtag_parse_enable(struct ocel
+ int ocelot_dscp_set(struct ocelot *ocelot, int port,
+ bool enable, const u8 dscp_ix,
+ struct tsn_qos_switch_dscp_conf *c);
++void ocelot_phylink_validate(struct ocelot *ocelot, int port,
++ unsigned long *supported,
++ struct phylink_link_state *state);
++void ocelot_phylink_mac_pcs_get_state(struct ocelot *ocelot, int port,
++ struct phylink_link_state *state);
++void ocelot_phylink_mac_an_restart(struct ocelot *ocelot, int port);
++void ocelot_phylink_mac_config(struct ocelot *ocelot, int port,
++ unsigned int link_an_mode,
++ const struct phylink_link_state *state);
++void ocelot_phylink_mac_link_down(struct ocelot *ocelot, int port,
++ unsigned int link_an_mode,
++ phy_interface_t interface);
++void ocelot_phylink_mac_link_up(struct ocelot *ocelot, int port,
++ unsigned int link_an_mode,
++ phy_interface_t interface,
++ struct phy_device *phy);
++
+ #endif