diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2018-08-09 15:38:39 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-08-09 11:08:19 -0700 |
| commit | 6c422e34b1b6533af5730280835365d4b50786d3 (patch) | |
| tree | 90e8cb7a1b096b46468221ca882dbb26dccc3de8 /drivers/net/dsa/mv88e6xxx/port.c | |
| parent | 624c0f0239f04cce78c86afa95eb2841c84fbab1 (diff) | |
net: dsa: mv88e6xxx: add phylink support
Add rudimentary phylink support to mv88e6xxx.
TODO:
- needs to call phylink_mac_change() when the port link comes up/goes down.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/port.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/port.c | 56 |
1 files changed, 54 insertions, 2 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index c0701deaca6a..2ff370cb2f3c 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -388,6 +388,19 @@ int mv88e6390x_port_set_cmode(struct mv88e6xxx_chip *chip, int port, return 0; } +/* mv88e6185 only has 3 bits for CMODE */ +static int mv88e6185_port_get_cmode(struct mv88e6xxx_chip *chip, int port) +{ + int err; + u16 reg; + + err = mv88e6xxx_port_read(chip, port, MV88E6XXX_PORT_STS, ®); + if (err) + return err; + + return reg & MV88E6185_PORT_STS_CMODE_MASK; +} + int mv88e6xxx_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode) { int err; @@ -402,7 +415,7 @@ int mv88e6xxx_port_get_cmode(struct mv88e6xxx_chip *chip, int port, u8 *cmode) return 0; } -int mv88e6xxx_port_link_state(struct mv88e6xxx_chip *chip, int port, +int mv88e6352_port_link_state(struct mv88e6xxx_chip *chip, int port, struct phylink_link_state *state) { int err; @@ -423,7 +436,7 @@ int mv88e6xxx_port_link_state(struct mv88e6xxx_chip *chip, int port, state->speed = SPEED_1000; break; case MV88E6XXX_PORT_STS_SPEED_10000: - if ((reg &MV88E6XXX_PORT_STS_CMODE_MASK) == + if ((reg & MV88E6XXX_PORT_STS_CMODE_MASK) == MV88E6XXX_PORT_STS_CMODE_2500BASEX) state->speed = SPEED_2500; else @@ -440,6 +453,45 @@ int mv88e6xxx_port_link_state(struct mv88e6xxx_chip *chip, int port, return 0; } +int mv88e6185_port_link_state(struct mv88e6xxx_chip *chip, int port, + struct phylink_link_state *state) +{ + if (state->interface == PHY_INTERFACE_MODE_1000BASEX) { + int cmode = mv88e6185_port_get_cmode(chip, port); + + if (cmode < 0) + return cmode; + + /* When a port is in "Cross-chip serdes" mode, it uses + * 1000Base-X full duplex mode, but there is no automatic + * link detection. Use the sync OK status for link (as it + * would do for 1000Base-X mode.) + */ + if (cmode == MV88E6185_PORT_STS_CMODE_SERDES) { + u16 mac; + int err; + + err = mv88e6xxx_port_read(chip, port, + MV88E6XXX_PORT_MAC_CTL, &mac); + if (err) + return err; + + state->link = !!(mac & MV88E6185_PORT_MAC_CTL_SYNC_OK); + state->an_enabled = 1; + state->an_complete = + !!(mac & MV88E6185_PORT_MAC_CTL_AN_DONE); + state->duplex = + state->link ? DUPLEX_FULL : DUPLEX_UNKNOWN; + state->speed = + state->link ? SPEED_1000 : SPEED_UNKNOWN; + + return 0; + } + } + + return mv88e6352_port_link_state(chip, port, state); +} + /* Offset 0x02: Jamming Control * * Do not limit the period of time that this port can be paused for by |