From: Fugang Duan Date: Sun, 3 May 2020 14:41:16 +0000 (+0800) Subject: net: phy: realtek: add rx delay support for RTL8211F X-Git-Tag: v2020.10~225^2~57 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e32e4d0f58cb0ca5fc77aa3f5745c1910b13c68b;p=platform%2Fkernel%2Fu-boot.git net: phy: realtek: add rx delay support for RTL8211F Add RX delay enable support for RTL8211F PHY. Reviewed-by: Ye Li Signed-off-by: Fugang Duan Signed-off-by: Peng Fan --- diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 8f1d759..8f0a897 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -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);