From e555e5b1b9aeec679eecb228fa9a36c070c57cbb Mon Sep 17 00:00:00 2001 From: Maxime Chevallier Date: Sat, 23 Feb 2019 00:37:40 +0100 Subject: [PATCH] net: phy: marvell10g: Use 2500BASEX when using 2.5GBASET The Marvell Alaska family of PHYs supports 2.5GBaseT and 5GBaseT modes, as defined in the 802.3bz specification. Upon establishing a 2.5GBASET link, the PHY will reconfigure it's MII interface to 2500BASEX. At 5G, the PHY will reconfigure it's interface to 5GBASE-R, but this mode isn't supported by any MAC for now. This was tested with : - The 88X3310, which is on the MacchiatoBin - The 88E2010, an Alaska PHY that has no fiber interfaces, and is limited to 5G maximum speed. Signed-off-by: Maxime Chevallier Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/phy/marvell10g.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c index 821ef1b2f8cc..9342d8c2ff7f 100644 --- a/drivers/net/phy/marvell10g.c +++ b/drivers/net/phy/marvell10g.c @@ -235,6 +235,7 @@ static int mv3310_config_init(struct phy_device *phydev) { /* Check that the PHY interface type is compatible */ if (phydev->interface != PHY_INTERFACE_MODE_SGMII && + phydev->interface != PHY_INTERFACE_MODE_2500BASEX && phydev->interface != PHY_INTERFACE_MODE_XAUI && phydev->interface != PHY_INTERFACE_MODE_RXAUI && phydev->interface != PHY_INTERFACE_MODE_10GKR) @@ -313,18 +314,29 @@ static int mv3310_aneg_done(struct phy_device *phydev) static void mv3310_update_interface(struct phy_device *phydev) { if ((phydev->interface == PHY_INTERFACE_MODE_SGMII || + phydev->interface == PHY_INTERFACE_MODE_2500BASEX || phydev->interface == PHY_INTERFACE_MODE_10GKR) && phydev->link) { /* The PHY automatically switches its serdes interface (and - * active PHYXS instance) between Cisco SGMII and 10GBase-KR - * modes according to the speed. Florian suggests setting - * phydev->interface to communicate this to the MAC. Only do - * this if we are already in either SGMII or 10GBase-KR mode. + * active PHYXS instance) between Cisco SGMII, 10GBase-KR and + * 2500BaseX modes according to the speed. Florian suggests + * setting phydev->interface to communicate this to the MAC. + * Only do this if we are already in one of the above modes. */ - if (phydev->speed == SPEED_10000) + switch (phydev->speed) { + case SPEED_10000: phydev->interface = PHY_INTERFACE_MODE_10GKR; - else if (phydev->speed >= SPEED_10 && - phydev->speed < SPEED_10000) + break; + case SPEED_2500: + phydev->interface = PHY_INTERFACE_MODE_2500BASEX; + break; + case SPEED_1000: + case SPEED_100: + case SPEED_10: phydev->interface = PHY_INTERFACE_MODE_SGMII; + break; + default: + break; + } } } -- 2.20.1