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net: phy: micrel: Add KSZ8041FTL fiber mode support

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We can't detect the FXEN (fiber mode) bootstrap pin, so configure
it via a boolean device tree property "micrel,fiber-mode".
If it is enabled, auto-negotiation is not supported.
The only available modes are 100base-fx (full duplex and half duplex).

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Philipp Zabel
2016-07-14 16:29:43 +02:00
committed by David S. Miller
parent 2f43b9beea
commit 77501a79ce
3 changed files with 43 additions and 2 deletions
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34
drivers/net/phy/micrel.c
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@@ -311,6 +311,36 @@ static int kszphy_config_init(struct phy_device *phydev)
return 0;
}
static int ksz8041_config_init(struct phy_device *phydev)
{
struct device_node *of_node = phydev->mdio.dev.of_node;
/* Limit supported and advertised modes in fiber mode */
if (of_property_read_bool(of_node, "micrel,fiber-mode")) {
phydev->dev_flags |= MICREL_PHY_FXEN;
phydev->supported &= SUPPORTED_FIBRE |
SUPPORTED_100baseT_Full |
SUPPORTED_100baseT_Half;
phydev->advertising &= ADVERTISED_FIBRE |
ADVERTISED_100baseT_Full |
ADVERTISED_100baseT_Half;
phydev->autoneg = AUTONEG_DISABLE;
}
return kszphy_config_init(phydev);
}
static int ksz8041_config_aneg(struct phy_device *phydev)
{
/* Skip auto-negotiation in fiber mode */
if (phydev->dev_flags & MICREL_PHY_FXEN) {
phydev->speed = SPEED_100;
return 0;
}
return genphy_config_aneg(phydev);
}
static int ksz9021_load_values_from_of(struct phy_device *phydev,
const struct device_node *of_node,
u16 reg,
@@ -788,8 +818,8 @@ static struct phy_driver ksphy_driver[] = {
.flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
.driver_data = &ksz8041_type,
.probe = kszphy_probe,
.config_init = kszphy_config_init,
.config_aneg = genphy_config_aneg,
.config_init = ksz8041_config_init,
.config_aneg = ksz8041_config_aneg,
.read_status = genphy_read_status,
.ack_interrupt = kszphy_ack_interrupt,
.config_intr = kszphy_config_intr,