r8169: check ALDPS bit and disable it if enabled for the 8168g
authorDavid Chang <dchang@suse.com>
Wed, 27 Nov 2013 07:48:36 +0000 (15:48 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 8 Dec 2013 15:29:26 +0000 (07:29 -0800)
commit1562432658a5bf8aa32d25a99c30cfdda5b43818
tree324c67665d8b7183fc42bbacc1bfd5420812c3e7
parent5b9e9be7756854ddd525fb9882f1feddd9435831
r8169: check ALDPS bit and disable it if enabled for the 8168g

[ Upstream commit 1bac1072425c86f1ac85bd5967910706677ef8b3 ]

Windows driver will enable ALDPS function, but linux driver and firmware
do not have any configuration related to ALDPS function for 8168g.
So restart system to linux and remove the NIC cable, LAN enter ALDPS,
then LAN RX will be disabled.

This issue can be easily reproduced on dual boot windows and linux
system with RTL_GIGA_MAC_VER_40 chip.

Realtek said, ALDPS function can be disabled by configuring to PHY,
switch to page 0x0A43, reg0x10 bit2=0.

Signed-off-by: David Chang <dchang@suse.com>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/ethernet/realtek/r8169.c