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Commit 120b0893b9463600498cf906b5a7cd0aee7cd60d

Authored by Fugang Duan
Committed by Ye Li
1 parent 6375056baf
Exists in smarc_8mq_lf_v2020.04 and in 4 other branches pitx_8mp_lf_v2020.04, smarc-8m-android-11.0.0_2.0.0, smarc-8mp-android-11.0.0_2.0.0, smarc_8mp_lf_v2020.04

MLK-23165-13 net: phy: realtek: add rx delay support for RTL8211F 

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>
(cherry picked from commit 8e55d1e0bea57c0671a51258c48306be0066ae7c)

Showing 1 changed file with 11 additions and 0 deletions Side-by-side Diff

drivers/net/phy/realtek.c
Diff comments   View file @ 120b089
... ... @@ -56,6 +56,7 @@
56 56  
57 57 #define MIIM_RTL8211F_PAGE_SELECT 0x1f
58 58 #define MIIM_RTL8211F_TX_DELAY 0x100
  59 +#define MIIM_RTL8211F_RX_DELAY 0x8
59 60 #define MIIM_RTL8211F_LCR 0x10
60 61  
61 62 static int rtl8211f_phy_extread(struct phy_device *phydev, int addr,
... ... @@ -183,6 +184,16 @@
183 184 reg &= ~MIIM_RTL8211F_TX_DELAY;
184 185  
185 186 phy_write(phydev, MDIO_DEVAD_NONE, 0x11, reg);
  187 +
  188 + /* enable RX-delay for rgmii-id and rgmii-rxid, otherwise disable it */
  189 + reg = phy_read(phydev, MDIO_DEVAD_NONE, 0x15);
  190 + if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
  191 + phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
  192 + reg |= MIIM_RTL8211F_RX_DELAY;
  193 + else
  194 + reg &= ~MIIM_RTL8211F_RX_DELAY;
  195 + phy_write(phydev, MDIO_DEVAD_NONE, 0x15, reg);
  196 +
186 197 /* restore to default page 0 */
187 198 phy_write(phydev, MDIO_DEVAD_NONE,
188 199 MIIM_RTL8211F_PAGE_SELECT, 0x0);