tree 06493995b74c1fd2f40561b0f6924d3b863f166f
parent d2eed8cff9a1a5d7e12ec9ddf71432c466b104d0
author Francois Romieu <romieu@fr.zoreil.com> 1157998258 +0200
committer Francois Romieu <romieu@fr.zoreil.com> 1157997107 +0200

r8169: quirk for the 8110sb on arm platform

Inverting the write ordering of the TxDescAddr{High/Low} registers
suffices to trigger a sabbat of PCI errors which make the device
completely dysfunctional. The issue has not been reported on a
different platform.

Switching from MMIO accesses to I/O ones as done in Realtek's
own driver fixes (papers over ?) the bug as well but I am not
thrilled to see everyone pay the I/O price for an obscure bug.

This is the minimal change to handle the issue.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Reported-by: Lennert Buytenhek <buytenh@wantstofly.org>