tree cf26fdfb0fb9f5fba78bb59a82f37abb132d4b62
parent 521e6b90dd3f0392062845d7ef13e6e41bb99d8a
author Matt Carlson <mcarlson@broadcom.com> 1251194847 +0000
committer David S. Miller <davem@davemloft.net> 1251326867 -0700

tg3: Prevent tx BD corruption

This patch prevents a tx BD corruption bug by preventing the device from
powering down the PLL from L1 if the link speed is 10Mbps or 100Mbps.

The same bits are also used to prevent a system hang during chip reset
resulting from a complicated set of events that ultimately leads to
PCIe block register corruption.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>