diff options
| author | Heiner Kallweit <hkallweit1@gmail.com> | 2019-11-01 00:10:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-10 11:34:50 +0100 |
| commit | e0f21506f2933f81b456afed92f74ce6d86f9955 (patch) | |
| tree | e561e517636da0e5aa1bc29cec912012de8e95a6 | |
| parent | 0e22b9051704c12e9daffc01d40389b044549226 (diff) | |
r8169: fix wrong PHY ID issue with RTL8168dp
[ Upstream commit 62bdc8fd1c21d4263ebd18bec57f82532d09249f ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 bae0074ab9aa..00c86c7dd42d 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -976,6 +976,10 @@ 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); |