diff options
Diffstat (limited to 'drivers/net/dsa/microchip/lan937x_main.c')
| -rw-r--r-- | drivers/net/dsa/microchip/lan937x_main.c | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/drivers/net/dsa/microchip/lan937x_main.c b/drivers/net/dsa/microchip/lan937x_main.c index 2f480bf4649d..c29d175ca6f7 100644 --- a/drivers/net/dsa/microchip/lan937x_main.c +++ b/drivers/net/dsa/microchip/lan937x_main.c @@ -312,6 +312,44 @@ int lan937x_change_mtu(struct ksz_device *dev, int port, int new_mtu) return 0; } +static void lan937x_config_gbit(struct ksz_device *dev, bool gbit, u8 *data) +{ + if (gbit) + *data &= ~PORT_MII_NOT_1GBIT; + else + *data |= PORT_MII_NOT_1GBIT; +} + +static void lan937x_mac_config(struct ksz_device *dev, int port, + phy_interface_t interface) +{ + u8 data8; + + ksz_pread8(dev, port, REG_PORT_XMII_CTRL_1, &data8); + + /* clear MII selection & set it based on interface later */ + data8 &= ~PORT_MII_SEL_M; + + /* configure MAC based on interface */ + switch (interface) { + case PHY_INTERFACE_MODE_MII: + lan937x_config_gbit(dev, false, &data8); + data8 |= PORT_MII_SEL; + break; + case PHY_INTERFACE_MODE_RMII: + lan937x_config_gbit(dev, false, &data8); + data8 |= PORT_RMII_SEL; + break; + default: + dev_err(dev->dev, "Unsupported interface '%s' for port %d\n", + phy_modes(interface), port); + return; + } + + /* Write the updated value */ + ksz_pwrite8(dev, port, REG_PORT_XMII_CTRL_1, data8); +} + static void lan937x_config_interface(struct ksz_device *dev, int port, int speed, int duplex, bool tx_pause, bool rx_pause) @@ -325,9 +363,9 @@ static void lan937x_config_interface(struct ksz_device *dev, int port, PORT_MII_TX_FLOW_CTRL | PORT_MII_RX_FLOW_CTRL); if (speed == SPEED_1000) - xmii_ctrl1 &= ~PORT_MII_NOT_1GBIT; + lan937x_config_gbit(dev, true, &xmii_ctrl1); else - xmii_ctrl1 |= PORT_MII_NOT_1GBIT; + lan937x_config_gbit(dev, false, &xmii_ctrl1); if (speed == SPEED_100) xmii_ctrl0 |= PORT_MII_100MBIT; @@ -370,6 +408,22 @@ void lan937x_phylink_mac_link_up(struct ksz_device *dev, int port, tx_pause, rx_pause); } +void lan937x_phylink_mac_config(struct ksz_device *dev, int port, + unsigned int mode, + const struct phylink_link_state *state) +{ + /* Internal PHYs */ + if (dev->info->internal_phy[port]) + return; + + if (phylink_autoneg_inband(mode)) { + dev_err(dev->dev, "In-band AN not supported!\n"); + return; + } + + lan937x_mac_config(dev, port, state->interface); +} + int lan937x_setup(struct dsa_switch *ds) { struct ksz_device *dev = ds->priv; |