target/linux/generic/patches-4.9/180-net-phy-at803x-add-support-for-AT8032.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Wed, 30 Nov 2016 11:31:03 +0100
   3 Subject: [PATCH] net: phy: at803x: add support for AT8032
   4
   5 Like AT8030, this PHY needs the GPIO reset workaround
   6
   7 Signed-off-by: Felix Fietkau <nbd@nbd.name>
   8 ---
   9
  10 --- a/drivers/net/phy/at803x.c
  11 +++ b/drivers/net/phy/at803x.c
  12 @@ -62,6 +62,7 @@
  13
  14  #define ATH8030_PHY_ID 0x004dd076
  15  #define ATH8031_PHY_ID 0x004dd074
  16 +#define ATH8032_PHY_ID 0x004dd023
  17  #define ATH8035_PHY_ID 0x004dd072
  18
  19  MODULE_DESCRIPTION("Atheros 803x PHY driver");
  20 @@ -259,7 +260,8 @@ static int at803x_probe(struct phy_devic
  21         if (!priv)
  22                 return -ENOMEM;
  23
  24 -       if (phydev->drv->phy_id != ATH8030_PHY_ID)
  25 +       if (phydev->drv->phy_id != ATH8030_PHY_ID &&
  26 +           phydev->drv->phy_id != ATH8032_PHY_ID)
  27                 goto does_not_require_reset_workaround;
  28
  29         gpiod_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
  30 @@ -335,7 +337,7 @@ static void at803x_link_change_notify(st
  31         struct at803x_priv *priv = phydev->priv;
  32
  33         /*
  34 -        * Conduct a hardware reset for AT8030 every time a link loss is
  35 +        * Conduct a hardware reset for AT8030/2 every time a link loss is
  36          * signalled. This is necessary to circumvent a hardware bug that
  37          * occurs when the cable is unplugged while TX packets are pending
  38          * in the FIFO. In such cases, the FIFO enters an error mode it
  39 @@ -447,6 +449,24 @@ static struct phy_driver at803x_driver[]
  40         .aneg_done              = at803x_aneg_done,
  41         .ack_interrupt          = &at803x_ack_interrupt,
  42         .config_intr            = &at803x_config_intr,
  43 +}, {
  44 +       /* ATHEROS 8032 */
  45 +       .phy_id                 = ATH8032_PHY_ID,
  46 +       .name                   = "Atheros 8032 ethernet",
  47 +       .phy_id_mask            = 0xffffffef,
  48 +       .probe                  = at803x_probe,
  49 +       .config_init            = at803x_config_init,
  50 +       .link_change_notify     = at803x_link_change_notify,
  51 +       .set_wol                = at803x_set_wol,
  52 +       .get_wol                = at803x_get_wol,
  53 +       .suspend                = at803x_suspend,
  54 +       .resume                 = at803x_resume,
  55 +       .features               = PHY_BASIC_FEATURES,
  56 +       .flags                  = PHY_HAS_INTERRUPT,
  57 +       .config_aneg            = genphy_config_aneg,
  58 +       .read_status            = genphy_read_status,
  59 +       .ack_interrupt          = at803x_ack_interrupt,
  60 +       .config_intr            = at803x_config_intr,
  61  } };
  62
  63  module_phy_driver(at803x_driver);
  64 @@ -454,6 +474,7 @@ module_phy_driver(at803x_driver);
  65  static struct mdio_device_id __maybe_unused atheros_tbl[] = {
  66         { ATH8030_PHY_ID, 0xffffffef },
  67         { ATH8031_PHY_ID, 0xffffffef },
  68 +       { ATH8032_PHY_ID, 0xffffffef },
  69         { ATH8035_PHY_ID, 0xffffffef },
  70         { }
  71  };