shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-03-29 22:07:43 +09:00
Code Issues Packages Projects Releases Wiki Activity

r8169: fix wrong PHY ID issue with RTL8168dp

Browse Source 
[ Upstream commit 62bdc8fd1c ]

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: 242cd9b586 ("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>
This commit is contained in:
Heiner Kallweit
2019-11-01 00:10:21 +01:00
committed by Greg Kroah-Hartman
parent 9e7c4fa275
commit 5eb1967bfd
1 changed files with 4 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/realtek/r8169.c
View File

@@ -1010,6 +1010,10 @@ 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);