diff options
| author | Madalin Bucur <madalin.bucur@nxp.com> | 2017-08-18 11:35:24 +0300 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2017-09-07 13:23:52 -0500 |
| commit | 05b29aa0cb6875e1d91eec5ba1949e8d0c1f2618 (patch) | |
| tree | 3dce5cb3d851091bb844a6958ca9452f3a7462f4 /drivers | |
| parent | 84a42069f253554dbc2c7b4bbd28149a7a88c0ab (diff) | |
net: phy: realtek: fix enabling of the TX-delay for RTL8211F
The old logic always enabled the TX-delay when the phy-mode was set to
PHY_INTERFACE_MODE_RGMII. With this patch we enable the TX delay for
PHY_INTERFACE_MODE_RGMII_ID and PHY_INTERFACE_MODE_RGMII_TXID and
disable it for PHY_INTERFACE_MODE_RGMII.
Based on a similar change made in the Linux Realtek PHY driver
by Martin Blumenstingl <martin.blumenstingl@googlemail.com>.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/realtek.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 635acf5844..6d917f86f4 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -95,17 +95,21 @@ static int rtl8211f_config(struct phy_device *phydev) phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET); - if (phydev->interface == PHY_INTERFACE_MODE_RGMII) { - /* enable TXDLY */ - phy_write(phydev, MDIO_DEVAD_NONE, - MIIM_RTL8211F_PAGE_SELECT, 0xd08); - reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x11); + phy_write(phydev, MDIO_DEVAD_NONE, + MIIM_RTL8211F_PAGE_SELECT, 0xd08); + reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x11); + + /* enable TX-delay for rgmii-id and rgmii-txid, otherwise disable it */ + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || + phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) reg |= MIIM_RTL8211F_TX_DELAY; - phy_write(phydev, MDIO_DEVAD_NONE, 0x11, reg); - /* restore to default page 0 */ - phy_write(phydev, MDIO_DEVAD_NONE, - MIIM_RTL8211F_PAGE_SELECT, 0x0); - } + else + reg &= ~MIIM_RTL8211F_TX_DELAY; + + phy_write(phydev, MDIO_DEVAD_NONE, 0x11, reg); + /* restore to default page 0 */ + phy_write(phydev, MDIO_DEVAD_NONE, + MIIM_RTL8211F_PAGE_SELECT, 0x0); /* Set green LED for Link, yellow LED for Active */ phy_write(phydev, MDIO_DEVAD_NONE, |