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net: phy: realtek: add rx delay support for RTL8211F

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Add RX delay enable support for RTL8211F PHY.

Reviewed-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Fugang Duan 2020-05-03 22:41:16 +08:00 committed by Stefano Babic
parent 6a895d039b
commit e32e4d0f58
1 changed files with 11 additions and 0 deletions
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11
drivers/net/phy/realtek.c
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@ -56,6 +56,7 @@
#define MIIM_RTL8211F_PAGE_SELECT 0x1f
#define MIIM_RTL8211F_TX_DELAY 0x100
#define MIIM_RTL8211F_RX_DELAY 0x8
#define MIIM_RTL8211F_LCR 0x10
static int rtl8211f_phy_extread(struct phy_device *phydev, int addr,
@ -183,6 +184,16 @@ static int rtl8211f_config(struct phy_device *phydev)
reg &= ~MIIM_RTL8211F_TX_DELAY;
phy_write(phydev, MDIO_DEVAD_NONE, 0x11, reg);
/* enable RX-delay for rgmii-id and rgmii-rxid, otherwise disable it */
reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x15);
if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
reg |= MIIM_RTL8211F_RX_DELAY;
else
reg &= ~MIIM_RTL8211F_RX_DELAY;
phy_write(phydev, MDIO_DEVAD_NONE, 0x15, reg);
/* restore to default page 0 */
phy_write(phydev, MDIO_DEVAD_NONE,
MIIM_RTL8211F_PAGE_SELECT, 0x0);