igb: Workaround for igb i210 firmware issue
authorChris J Arges <christopherarges@gmail.com>
Fri, 17 Mar 2017 00:48:19 +0000 (00:48 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 22 Mar 2017 11:43:35 +0000 (12:43 +0100)
commit15ffc931eeb94d9673c2a163828704a7cf4c1df5
tree1710590919ca3069603cfb03b89be1923697010a
parent4b40611a9b7e5d06626674af898608167ac3f727
igb: Workaround for igb i210 firmware issue

[ Upstream commit 4e684f59d760a2c7c716bb60190783546e2d08a1 ]

Sometimes firmware may not properly initialize I347AT4_PAGE_SELECT causing
the probe of an igb i210 NIC to fail. This patch adds an addition zeroing
of this register during igb_get_phy_id to workaround this issue.

Thanks for Jochen Henneberg for the idea and original patch.

Signed-off-by: Chris J Arges <christopherarges@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/ethernet/intel/igb/e1000_phy.c