diff options
Diffstat (limited to 'drivers/net/pcs/pcs-lynx.c')
| -rw-r--r-- | drivers/net/pcs/pcs-lynx.c | 77 |
1 files changed, 5 insertions, 72 deletions
diff --git a/drivers/net/pcs/pcs-lynx.c b/drivers/net/pcs/pcs-lynx.c index 677f92883976..73e1364ad1ed 100644 --- a/drivers/net/pcs/pcs-lynx.c +++ b/drivers/net/pcs/pcs-lynx.c @@ -40,12 +40,12 @@ static unsigned int lynx_pcs_inband_caps(struct phylink_pcs *pcs, { switch (interface) { case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE; case PHY_INTERFACE_MODE_10GBASER: - case PHY_INTERFACE_MODE_2500BASEX: return LINK_INBAND_DISABLE; case PHY_INTERFACE_MODE_USXGMII: @@ -80,27 +80,6 @@ static void lynx_pcs_get_state_usxgmii(struct mdio_device *pcs, phylink_decode_usxgmii_word(state, lpa); } -static void lynx_pcs_get_state_2500basex(struct mdio_device *pcs, - struct phylink_link_state *state) -{ - int bmsr; - - bmsr = mdiodev_read(pcs, MII_BMSR); - if (bmsr < 0) { - state->link = false; - return; - } - - state->link = !!(bmsr & BMSR_LSTATUS); - state->an_complete = !!(bmsr & BMSR_ANEGCOMPLETE); - if (!state->link) - return; - - state->speed = SPEED_2500; - state->pause |= MLO_PAUSE_TX | MLO_PAUSE_RX; - state->duplex = DUPLEX_FULL; -} - static void lynx_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode, struct phylink_link_state *state) { @@ -108,13 +87,11 @@ static void lynx_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode, switch (state->interface) { case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: phylink_mii_c22_pcs_get_state(lynx->mdio, neg_mode, state); break; - case PHY_INTERFACE_MODE_2500BASEX: - lynx_pcs_get_state_2500basex(lynx->mdio, state); - break; case PHY_INTERFACE_MODE_USXGMII: case PHY_INTERFACE_MODE_10G_QXGMII: lynx_pcs_get_state_usxgmii(lynx->mdio, state); @@ -152,7 +129,8 @@ static int lynx_pcs_config_giga(struct mdio_device *pcs, mdiodev_write(pcs, LINK_TIMER_HI, link_timer >> 16); } - if (interface == PHY_INTERFACE_MODE_1000BASEX) { + if (interface == PHY_INTERFACE_MODE_1000BASEX || + interface == PHY_INTERFACE_MODE_2500BASEX) { if_mode = 0; } else { /* SGMII and QSGMII */ @@ -202,15 +180,9 @@ static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int neg_mode, case PHY_INTERFACE_MODE_1000BASEX: case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: + case PHY_INTERFACE_MODE_2500BASEX: return lynx_pcs_config_giga(lynx->mdio, ifmode, advertising, neg_mode); - case PHY_INTERFACE_MODE_2500BASEX: - if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) { - dev_err(&lynx->mdio->dev, - "AN not supported on 3.125GHz SerDes lane\n"); - return -EOPNOTSUPP; - } - break; case PHY_INTERFACE_MODE_USXGMII: case PHY_INTERFACE_MODE_10G_QXGMII: return lynx_pcs_config_usxgmii(lynx->mdio, ifmode, advertising, @@ -271,42 +243,6 @@ static void lynx_pcs_link_up_sgmii(struct mdio_device *pcs, if_mode); } -/* 2500Base-X is SerDes protocol 7 on Felix and 6 on ENETC. It is a SerDes lane - * clocked at 3.125 GHz which encodes symbols with 8b/10b and does not have - * auto-negotiation of any link parameters. Electrically it is compatible with - * a single lane of XAUI. - * The hardware reference manual wants to call this mode SGMII, but it isn't - * really, since the fundamental features of SGMII: - * - Downgrading the link speed by duplicating symbols - * - Auto-negotiation - * are not there. - * The speed is configured at 1000 in the IF_MODE because the clock frequency - * is actually given by a PLL configured in the Reset Configuration Word (RCW). - * Since there is no difference between fixed speed SGMII w/o AN and 802.3z w/o - * AN, we call this PHY interface type 2500Base-X. In case a PHY negotiates a - * lower link speed on line side, the system-side interface remains fixed at - * 2500 Mbps and we do rate adaptation through pause frames. - */ -static void lynx_pcs_link_up_2500basex(struct mdio_device *pcs, - unsigned int neg_mode, - int speed, int duplex) -{ - u16 if_mode = 0; - - if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) { - dev_err(&pcs->dev, "AN not supported for 2500BaseX\n"); - return; - } - - if (duplex == DUPLEX_HALF) - if_mode |= IF_MODE_HALF_DUPLEX; - if_mode |= IF_MODE_SPEED(SGMII_SPEED_2500); - - mdiodev_modify(pcs, IF_MODE, - IF_MODE_HALF_DUPLEX | IF_MODE_SPEED_MSK, - if_mode); -} - static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int neg_mode, phy_interface_t interface, int speed, int duplex) @@ -318,9 +254,6 @@ static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int neg_mode, case PHY_INTERFACE_MODE_QSGMII: lynx_pcs_link_up_sgmii(lynx->mdio, neg_mode, speed, duplex); break; - case PHY_INTERFACE_MODE_2500BASEX: - lynx_pcs_link_up_2500basex(lynx->mdio, neg_mode, speed, duplex); - break; case PHY_INTERFACE_MODE_USXGMII: case PHY_INTERFACE_MODE_10G_QXGMII: /* At the moment, only in-band AN is supported for USXGMII |