[trusty SRU] (upstream) xgene-enet: add SGMII based 1GbE support for the second port

[Craig Magina]

This patch set enables the second SGMII port on the xgene-1 mustang board.
The patches were backported by APM and tested by them as well as myself.

BugLink: https://bugs.launchpad.net/santacruz/+bug/1449081

The following changes since commit d31d9a2b936c69cfdb16a4a346f3dbfcb221b089:

  UBUNTU: Ubuntu-3.13.0-54.91 (2015-05-26 19:13:18 +0100)

are available in the git repository at:

  git://kernel.ubuntu.com/cmagina/trusty-xgene.git 1458042

for you to fetch changes up to a96f73cfcac613cbfaf499c3a4cdbc59469363c4:

  dtb: xgene: Add second SGMII based 1G interface node (2015-05-27 10:10:46 -0400)

----------------------------------------------------------------
Dan Carpenter (1):
      net: eth: xgene: devm_ioremap() returns NULL on error

Fabian Frederick (1):
      drivers: net: xgene: constify of_device_id array

Florian Fainelli (1):
      net: phy: re-design phy_modes to be self-contained

Iyappan Subramanian (2):
      drivers: net: xgene: fix new firmware backward compatibility with older driver
      dtb: change binding name to match with newer firmware DT

Keyur Chudgar (2):
      drivers: net: xgene: Add second SGMII based 1G interface
      dtb: xgene: Add second SGMII based 1G interface node

 arch/arm64/boot/dts/apm-mustang.dts               |   4 +
 arch/arm64/boot/dts/apm-storm.dtsi                |  30 +++++-
 drivers/net/ethernet/apm/xgene/xgene_enet_hw.h    |   2 +
 drivers/net/ethernet/apm/xgene/xgene_enet_main.c  | 114 ++++++++++++++++++----
 drivers/net/ethernet/apm/xgene/xgene_enet_main.h  |  18 +++-
 drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c |  10 +-
 drivers/of/of_net.c                               |  26 +----
 include/linux/phy.h                               |  42 ++++++++
 8 files changed, 194 insertions(+), 52 deletions(-)