static int lan87xx_config_init(struct phy_device *phydev)
{
/*
* Make sure the EDPWRDOWN bit is NOT set. Setting this bit on
* LAN8710/LAN8720 PHY causes the PHY to misbehave, likely due
* to a bug on the chip.
*
* When the system is powered on with the network cable being
* disconnected all the way until after ifconfig ethX up is
* issued for the LAN port with this PHY, connecting the cable
* afterwards does not cause LINK change detection, while the
* expected behavior is the Link UP being detected.
*/
int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
if (rc < 0)
return rc;
rc &= ~MII_LAN83C185_EDPWRDOWN;
rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS, rc);
if (rc < 0)
return rc;
return smsc_phy_ack_interrupt(phydev);
}
static int smsc_phy_config_init(struct phy_device *phydev)
{
int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
if (rc < 0)
return rc;
rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
rc | MII_LAN83C185_EDPWRDOWN);
if (rc < 0)
return rc;
return smsc_phy_ack_interrupt (phydev);
}
static int smsc_phy_config_init(struct phy_device *phydev)
{
int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
if (rc < 0)
return rc;
/* Enable energy detect mode for this SMSC Transceivers */
rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
rc | MII_LAN83C185_EDPWRDOWN);
if (rc < 0)
return rc;
return smsc_phy_ack_interrupt (phydev);
}
static int smsc_phy_config_init(struct phy_device *phydev)
{
int rc = phy_read(phydev, MII_LAN83C185_SPECIAL_MODES);
if (rc < 0)
return rc;
/* If the SMSC PHY is in power down mode, then set it
* in all capable mode before using it.
*/
if ((rc & MII_LAN83C185_MODE_MASK) == MII_LAN83C185_MODE_POWERDOWN) {
int timeout = 50000;
/* set "all capable" mode and reset the phy */
rc |= MII_LAN83C185_MODE_ALL;
phy_write(phydev, MII_LAN83C185_SPECIAL_MODES, rc);
phy_write(phydev, MII_BMCR, BMCR_RESET);
/* wait end of reset (max 500 ms) */
do {
udelay(10);
if (timeout-- == 0)
return -1;
rc = phy_read(phydev, MII_BMCR);
} while (rc & BMCR_RESET);
}
rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
if (rc < 0)
return rc;
/* Enable energy detect mode for this SMSC Transceivers */
rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
rc | MII_LAN83C185_EDPWRDOWN);
if (rc < 0)
return rc;
return smsc_phy_ack_interrupt (phydev);
}
static int smsc_phy_config_init(struct phy_device *phydev)
{
int __maybe_unused len;
struct device *dev __maybe_unused = &phydev->mdio.dev;
struct device_node *of_node __maybe_unused = dev->of_node;
int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
int enable_energy = 1;
if (rc < 0)
return rc;
if (of_find_property(of_node, "smsc,disable-energy-detect", &len))
enable_energy = 0;
if (enable_energy) {
/* Enable energy detect mode for this SMSC Transceivers */
rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
rc | MII_LAN83C185_EDPWRDOWN);
if (rc < 0)
return rc;
}
return smsc_phy_ack_interrupt(phydev);
}
static int lan911x_config_init(struct phy_device *phydev)
{
return smsc_phy_ack_interrupt(phydev);
}
