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 <jo...@kernel.org>
---
drivers/net/phy/micrel.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 21abe5ade3df..16135ac18bfe 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -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,
--
2.0.4
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