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net: phy: micrel: disable broadcast for KSZ8081/KSZ8091 

Disable PHY address 0 as the broadcast address, so that it can be used
as a unique (non-broadcast) address on a shared bus.

Note that this can also be configured using the B-CAST_OFF pin on
KSZ9091, but that KSZ8081 lacks this pin and is also limited to
addresses 0 and 3.

Specifically, this allows for dual KSZ8081 setups.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
wifi-calibration
Johan Hovold 2014-11-11 20:00:11 +01:00 committed by David S. Miller
parent bde151296a
commit 57a38effa5
1 changed files with 8 additions and 1 deletions
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9
drivers/net/phy/micrel.c
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@ -243,6 +243,13 @@ static int ks8051_config_init(struct phy_device *phydev)
return rc < 0 ? rc : 0;
}
static int ksz8081_config_init(struct phy_device *phydev)
{
kszphy_broadcast_disable(phydev);
return 0;
}
static int ksz9021_load_values_from_of(struct phy_device *phydev,
struct device_node *of_node, u16 reg,
char *field1, char *field2,
@ -605,7 +612,7 @@ static struct phy_driver ksphy_driver[] = {
.phy_id_mask = 0x00fffff0,
.features = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.config_init = kszphy_config_init,
.config_init = ksz8081_config_init,
.config_aneg = genphy_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = kszphy_ack_interrupt,