target/linux/generic/hack-5.15/750-net-pcs-mtk-lynxi-workaround-2500BaseX-no-an.patch

   1 --- a/drivers/net/pcs/pcs-mtk-lynxi.c
   2 +++ b/drivers/net/pcs/pcs-mtk-lynxi.c
   3 @@ -92,14 +92,23 @@ static void mtk_pcs_lynxi_get_state(stru
   4                                     struct phylink_link_state *state)
   5  {
   6         struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
   7 -       unsigned int bm, adv;
   8 +       unsigned int bm, bmsr, adv;
   9
  10         /* Read the BMSR and LPA */
  11         regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &bm);
  12 -       regmap_read(mpcs->regmap, SGMSYS_PCS_ADVERTISE, &adv);
  13 +       bmsr = FIELD_GET(SGMII_BMSR, bm);
  14 +
  15 +       if (state->interface == PHY_INTERFACE_MODE_2500BASEX) {
  16 +               state->link = !!(bmsr & BMSR_LSTATUS);
  17 +               state->an_complete = !!(bmsr & BMSR_ANEGCOMPLETE);
  18 +               state->speed = SPEED_2500;
  19 +               state->duplex = DUPLEX_FULL;
  20
  21 -       phylink_mii_c22_pcs_decode_state(state, FIELD_GET(SGMII_BMSR, bm),
  22 -                                        FIELD_GET(SGMII_LPA, adv));
  23 +               return;
  24 +       }
  25 +
  26 +       regmap_read(mpcs->regmap, SGMSYS_PCS_ADVERTISE, &adv);
  27 +       phylink_mii_c22_pcs_decode_state(state, bmsr, FIELD_GET(SGMII_LPA, adv));
  28  }
  29
  30  static int mtk_pcs_lynxi_config(struct phylink_pcs *pcs, unsigned int mode,
  31 @@ -134,7 +143,8 @@ static int mtk_pcs_lynxi_config(struct p
  32                 /* 1000base-X or 2500base-X autoneg */
  33                 sgm_mode = SGMII_REMOTE_FAULT_DIS;
  34                 use_an = linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
  35 -                                          advertising);
  36 +                                          advertising) &&
  37 +                        !(interface == PHY_INTERFACE_MODE_2500BASEX);
  38         } else {
  39                 /* 1000base-X or 2500base-X without autoneg */
  40                 sgm_mode = 0;