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net: dsa: mv88e6xxx: 88e6390 10G serdes support 

Add support for reading and reporting the 10G link status on the
88e6390 in addition to the 1000BASE-X/2500BASE-X/SGMII status.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2020-04-30 09:21:39 +01:00 committed by David S. Miller
parent bf604bc90b
commit 7019bba433
2 changed files with 42 additions and 2 deletions
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43
drivers/net/dsa/mv88e6xxx/serdes.c
View File

@ -748,8 +748,8 @@ int mv88e6390_serdes_pcs_config(struct mv88e6xxx_chip *chip, int port,
MV88E6390_SGMII_BMCR, bmcr);
}
int mv88e6390_serdes_pcs_get_state(struct mv88e6xxx_chip *chip, int port,
u8 lane, struct phylink_link_state *state)
static int mv88e6390_serdes_pcs_get_state_sgmii(struct mv88e6xxx_chip *chip,
int port, u8 lane, struct phylink_link_state *state)
{
u16 lpa, status;
int err;
@ -771,6 +771,45 @@ int mv88e6390_serdes_pcs_get_state(struct mv88e6xxx_chip *chip, int port,
return mv88e6xxx_serdes_pcs_get_state(chip, status, lpa, state);
}
static int mv88e6390_serdes_pcs_get_state_10g(struct mv88e6xxx_chip *chip,
int port, u8 lane, struct phylink_link_state *state)
{
u16 status;
int err;
err = mv88e6390_serdes_read(chip, lane, MDIO_MMD_PHYXS,
MV88E6390_10G_STAT1, &status);
if (err)
return err;
state->link = !!(status & MDIO_STAT1_LSTATUS);
if (state->link) {
state->speed = SPEED_10000;
state->duplex = DUPLEX_FULL;
}
return 0;
}
int mv88e6390_serdes_pcs_get_state(struct mv88e6xxx_chip *chip, int port,
u8 lane, struct phylink_link_state *state)
{
switch (state->interface) {
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_2500BASEX:
return mv88e6390_serdes_pcs_get_state_sgmii(chip, port, lane,
state);
case PHY_INTERFACE_MODE_XAUI:
case PHY_INTERFACE_MODE_RXAUI:
return mv88e6390_serdes_pcs_get_state_10g(chip, port, lane,
state);
default:
return -EOPNOTSUPP;
}
}
int mv88e6390_serdes_pcs_an_restart(struct mv88e6xxx_chip *chip, int port,
u8 lane)
{

1
drivers/net/dsa/mv88e6xxx/serdes.h
View File

@ -41,6 +41,7 @@
/* 10GBASE-R and 10GBASE-X4/X2 */
#define MV88E6390_10G_CTRL1 (0x1000 + MDIO_CTRL1)
#define MV88E6390_10G_STAT1 (0x1000 + MDIO_STAT1)
/* 1000BASE-X and SGMII */
#define MV88E6390_SGMII_BMCR (0x2000 + MII_BMCR)