diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2015-08-31 16:56:51 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-09-01 00:48:02 +0300 |
| commit | e7e72ac05acc357065a9448314dd14fff7c40d39 (patch) | |
| tree | 62ba32f0a6868d23d2703435da7044d2f9ff129a /drivers/net/dsa | |
| parent | e44853466844c20d8b5b16de187f63ddc50710dd (diff) | |
| download | linux-e7e72ac05acc357065a9448314dd14fff7c40d39.tar.xz | |
dsa: mv88e6xxx: Set the RGMII delay based on phy interface
Some Marvell switches allow the RGMII Rx and Tx clock to be delayed
when the port is using RGMII. Have the adjust_link function look at
the phy interface type and enable this delay as requested.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 10 | ||||
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx.h | 2 |
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 1a8c45f3e680..90dee97ae793 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -612,6 +612,16 @@ void mv88e6xxx_adjust_link(struct dsa_switch *ds, int port, if (phydev->duplex == DUPLEX_FULL) reg |= PORT_PCS_CTRL_DUPLEX_FULL; + if ((mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds)) && + (port >= ps->num_ports - 2)) { + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) + reg |= PORT_PCS_CTRL_RGMII_DELAY_RXCLK; + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) + reg |= PORT_PCS_CTRL_RGMII_DELAY_TXCLK; + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) + reg |= (PORT_PCS_CTRL_RGMII_DELAY_RXCLK | + PORT_PCS_CTRL_RGMII_DELAY_TXCLK); + } _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_PCS_CTRL, reg); out: diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h index 79003c55fe62..9b6f3d9d5ae1 100644 --- a/drivers/net/dsa/mv88e6xxx.h +++ b/drivers/net/dsa/mv88e6xxx.h @@ -46,6 +46,8 @@ #define PORT_STATUS_TX_PAUSED BIT(5) #define PORT_STATUS_FLOW_CTRL BIT(4) #define PORT_PCS_CTRL 0x01 +#define PORT_PCS_CTRL_RGMII_DELAY_RXCLK BIT(15) +#define PORT_PCS_CTRL_RGMII_DELAY_TXCLK BIT(14) #define PORT_PCS_CTRL_FC BIT(7) #define PORT_PCS_CTRL_FORCE_FC BIT(6) #define PORT_PCS_CTRL_LINK_UP BIT(5) |