r8169: do not enable the TBI for anything but the original 8169.

The TBI bit in PHYStatus is reserved on anything but the oldest 8169.

Nobody complained after I disabled it for the 8168 and the 810x (see
66ec5d4fb1ce6f0bd9df4bc4b758f0916d9f37ab).

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes Wang <hayeswang@realtek.com>

1 files changed, 10 insertions, 3 deletions

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index dff0bf094168..c23667017922 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -3080,6 +3080,14 @@ static void rtl8169_phy_reset(struct net_device *dev,
         netif_err(tp, link, dev, "PHY reset failed\n");
 }
 
+static bool rtl_tbi_enabled(struct rtl8169_private *tp)
+{
+        void __iomem *ioaddr = tp->mmio_addr;
+
+        return (tp->mac_version == RTL_GIGA_MAC_VER_01) &&
+            (RTL_R8(PHYstatus) & TBI_Enable);
+}
+
 static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
 {
         void __iomem *ioaddr = tp->mmio_addr;
@@ -3112,7 +3120,7 @@ static void rtl8169_init_phy(struct net_device *dev, struct rtl8169_private *tp)
                            ADVERTISED_1000baseT_Half |
                            ADVERTISED_1000baseT_Full : 0));
 
-        if (RTL_R8(PHYstatus) & TBI_Enable)
+        if (rtl_tbi_enabled(tp))
                 netif_info(tp, link, dev, "TBI auto-negotiating\n");
 }
 
@@ -3738,8 +3746,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         tp->features |= rtl_try_msi(pdev, ioaddr, cfg);
         RTL_W8(Cfg9346, Cfg9346_Lock);
 
-        if ((tp->mac_version <= RTL_GIGA_MAC_VER_06) &&
-            (RTL_R8(PHYstatus) & TBI_Enable)) {
+        if (rtl_tbi_enabled(tp)) {
                 tp->set_speed = rtl8169_set_speed_tbi;
                 tp->get_settings = rtl8169_gset_tbi;
                 tp->phy_reset_enable = rtl8169_tbi_reset_enable;