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| author | Clemens Gruber <clemens.gruber@pqgruber.com> | 2015-06-06 14:44:57 +0200 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2015-08-11 13:28:59 -0500 |
| commit | 90a94ef6521b0a512c594d8d1cbcd8093fdecfb5 (patch) | |
| tree | 0cc98bd8ca09371040b28ff2337aa2d6ec2688a3 /drivers | |
| parent | ade4ea4d71f6dad6683087621eb27bbcdfa6871d (diff) | |
| download | u-boot-imx-90a94ef6521b0a512c594d8d1cbcd8093fdecfb5.zip u-boot-imx-90a94ef6521b0a512c594d8d1cbcd8093fdecfb5.tar.gz u-boot-imx-90a94ef6521b0a512c594d8d1cbcd8093fdecfb5.tar.bz2 | |
net: Improve 88E151x PHY initialization
- The EEE fixup magic should also be enabled for RGMII
- Improved comments
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Hao Zhang <hzhang@ti.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/marvell.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index 9437c3b..cff5c87 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -303,24 +303,33 @@ static int m88e1518_config(struct phy_device *phydev) * As per Marvell Release Notes - Alaska 88E1510/88E1518/88E1512 * /88E1514 Rev A0, Errata Section 3.1 */ + + /* EEE initialization */ + phy_write(phydev, MDIO_DEVAD_NONE, 22, 0x00ff); + phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x214B); + phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x2144); + phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x0C28); + phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x2146); + phy_write(phydev, MDIO_DEVAD_NONE, 17, 0xB233); + phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x214D); + phy_write(phydev, MDIO_DEVAD_NONE, 17, 0xCC0C); + phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x2159); + phy_write(phydev, MDIO_DEVAD_NONE, 22, 0x0000); + + /* SGMII-to-Copper mode initialization */ if (phydev->interface == PHY_INTERFACE_MODE_SGMII) { - phy_write(phydev, MDIO_DEVAD_NONE, 22, 0x00ff); /* page 0xff */ - phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x214B); - phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x2144); - phy_write(phydev, MDIO_DEVAD_NONE, 17, 0x0C28); - phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x2146); - phy_write(phydev, MDIO_DEVAD_NONE, 17, 0xB233); - phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x214D); - phy_write(phydev, MDIO_DEVAD_NONE, 17, 0xCC0C); - phy_write(phydev, MDIO_DEVAD_NONE, 16, 0x2159); - phy_write(phydev, MDIO_DEVAD_NONE, 22, 0x0000); /* reg page 0 */ - phy_write(phydev, MDIO_DEVAD_NONE, 22, 18); /* reg page 18 */ - /* Write HWCFG_MODE = SGMII to Copper */ + /* Select page 18 */ + phy_write(phydev, MDIO_DEVAD_NONE, 22, 18); + + /* In reg 20, write MODE[2:0] = 0x1 (SGMII to Copper) */ m88e1518_phy_writebits(phydev, 20, 0, 3, 1); - /* Phy reset */ + /* PHY reset is necessary after changing MODE[2:0] */ m88e1518_phy_writebits(phydev, 20, 15, 1, 1); - phy_write(phydev, MDIO_DEVAD_NONE, 22, 0); /* reg page 18 */ + + /* Reset page selection */ + phy_write(phydev, MDIO_DEVAD_NONE, 22, 0); + udelay(100); } |