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phy: atheros: add support for RGMII_ID, RGMII_TXID and RGMII_RXID

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This adds support for internal delay on RX and TX on RGMII interface for the
AR8035 phy.

This is basically the same Linux driver do. Tested on a Zynq Zturn board (for
which u-boot support in is my tree; first patch waiting ML approval)

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Andrea Merello 2016-05-26 18:24:28 +02:00 • committed by Joe Hershberger
parent 5ebd27d860
commit 2ec4d10b65
1 changed files with 16 additions and 0 deletions
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16
drivers/net/phy/atheros.c
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@ -31,6 +31,22 @@ static int ar8035_config(struct phy_device *phydev)
regval = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, (regval|0x0100));
if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
(phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
/* select debug reg 5 */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1D, 0x5);
/* enable tx delay */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1E, 0x0100);
}
if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
(phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)) {
/* select debug reg 0 */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1D, 0x0);
/* enable rx delay */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1E, 0x8000);
}
phydev->supported = phydev->drv->features;
genphy_config_aneg(phydev);