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authorAndrea Merello <andrea.merello@gmail.com>2016-05-26 18:24:28 +0200
committerJoe Hershberger <joe.hershberger@ni.com>2016-10-13 12:24:51 -0500
commit2ec4d10b65d1f7d45098606e9a6857d587c3027c (patch)
tree9af712a8a219aad152b3a78c3ee859e3555ac66c /drivers/net/phy
parent5ebd27d860ec0c6e36f1b0f973653fe66a7360be (diff)
phy: atheros: add support for RGMII_ID, RGMII_TXID and RGMII_RXID
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>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r--drivers/net/phy/atheros.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c
index e57c4120a3..694a338053 100644
--- a/drivers/net/phy/atheros.c
+++ b/drivers/net/phy/atheros.c
@@ -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);