renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 19:53:59 +08:00
Code

net: phy: marvell: Limit errata to 88m1101

Browse Source 
The 88m1101 has an errata when configuring autoneg. However, it was
being applied to many other Marvell PHYs as well. Limit its scope to
just the 88m1101.

Fixes: 76884679c6 ("phylib: Add support for Marvell 88e1111S and 88e1145")
Reported-by: Daniel Walker <danielwa@cisco.com>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Harini Katakam <harinik@xilinx.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2017-05-23 17:49:13 +02:00 committed by David S. Miller
parent cd47512e51
commit f289978835
1 changed files with 37 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/net/phy/marvell.c
View File

@ -255,34 +255,6 @@ static int marvell_config_aneg(struct phy_device *phydev)
{
int err;
/* The Marvell PHY has an errata which requires
* that certain registers get written in order
* to restart autonegotiation */
err = phy_write(phydev, MII_BMCR, BMCR_RESET);
if (err < 0)
return err;
err = phy_write(phydev, 0x1d, 0x1f);
if (err < 0)
return err;
err = phy_write(phydev, 0x1e, 0x200c);
if (err < 0)
return err;
err = phy_write(phydev, 0x1d, 0x5);
if (err < 0)
return err;
err = phy_write(phydev, 0x1e, 0);
if (err < 0)
return err;
err = phy_write(phydev, 0x1e, 0x100);
if (err < 0)
return err;
err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
if (err < 0)
return err;
@ -316,6 +288,42 @@ static int marvell_config_aneg(struct phy_device *phydev)
return 0;
}
static int m88e1101_config_aneg(struct phy_device *phydev)
{
int err;
/* This Marvell PHY has an errata which requires
* that certain registers get written in order
* to restart autonegotiation
*/
err = phy_write(phydev, MII_BMCR, BMCR_RESET);
if (err < 0)
return err;
err = phy_write(phydev, 0x1d, 0x1f);
if (err < 0)
return err;
err = phy_write(phydev, 0x1e, 0x200c);
if (err < 0)
return err;
err = phy_write(phydev, 0x1d, 0x5);
if (err < 0)
return err;
err = phy_write(phydev, 0x1e, 0);
if (err < 0)
return err;
err = phy_write(phydev, 0x1e, 0x100);
if (err < 0)
return err;
return marvell_config_aneg(phydev);
}
static int m88e1111_config_aneg(struct phy_device *phydev)
{
int err;
@ -1892,7 +1900,7 @@ static struct phy_driver marvell_drivers[] = {
.flags = PHY_HAS_INTERRUPT,
.probe = marvell_probe,
.config_init = &marvell_config_init,
.config_aneg = &marvell_config_aneg,
.config_aneg = &m88e1101_config_aneg,
.read_status = &genphy_read_status,
.ack_interrupt = &marvell_ack_interrupt,
.config_intr = &marvell_config_intr,