diff options
| author |   Heiner Kallweit <hkallweit1@gmail.com> | 2019-11-01 00:10:21 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-11-01 15:09:40 -0700 |
| commit | 62bdc8fd1c21d4263ebd18bec57f82532d09249f (patch) | |
| tree | 3859a95bf3e22e5e9cceb566981a9d86a0d62dce /drivers/net/ethernet/realtek/r8169_main.c | |
| parent | net: dsa: bcm_sf2: Fix IMP setup for port different than 8 (diff) | |
| download | linux-dev-62bdc8fd1c21d4263ebd18bec57f82532d09249f.tar.xz linux-dev-62bdc8fd1c21d4263ebd18bec57f82532d09249f.zip | |
r8169: fix wrong PHY ID issue with RTL8168dp
As reported in [0] at least one RTL8168dp version has problems
establishing a link. This chip version has an integrated RTL8211b PHY,
however the chip seems to report a wrong PHY ID, resulting in a wrong
PHY driver (for Generic Realtek PHY) being loaded.
Work around this issue by adding a hook to r8168dp_2_mdio_read()
for returning the correct PHY ID.
[0] https://bbs.archlinux.org/viewtopic.php?id=246508
Fixes: 242cd9b5866a ("r8169: use phy_resume/phy_suspend")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index 350b0d949611..5064c292b873 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -1029,6 +1029,10 @@ static int r8168dp_2_mdio_read(struct rtl8169_private *tp, int reg) { int value; + /* Work around issue with chip reporting wrong PHY ID */ + if (reg == MII_PHYSID2) + return 0xc912; + r8168dp_2_mdio_start(tp); value = r8169_mdio_read(tp, reg); |