[PATCH v2 0/4] add support for impedance control for TI dp83867 phy and fix 2nd ethernet on dra72 rev C evm

[Mugunthan V N]

Add support for configurable impedance control for TI dp83867
phy via devicetree. More documentation in [1].
CPSW second ethernet is not working, fix it by enabling
impedance configuration on the phy.

Verified the patch on DRA72 Rev C evm, logs at [2]. Also pushed
a branch [3] for others to test.

Changes from initial version:
* As per Sekhar's comment, instead of passing impedance values,
  change to max and min impedance from DT
* Adopted phy_read_mmd_indirect() to cunnrent implementation.
* Corrected the phy delay timings to the optimal value.

[1] - http://www.ti.com/lit/ds/symlink/dp83867ir.pdf
[2] - http://pastebin.ubuntu.com/23274616/
[3] - git://git.ti.com/~mugunthanvnm/ti-linux-kernel/linux.git dp83867-v2

Mugunthan V N (4):
  net: phy: dp83867: Add documentation for optional impedance control
  net: phy: dp83867: add support for MAC impedance configuration
  ARM: dts: dra72-evm-revc: fix correct phy delay and impedance settings
  ARM: dts: dra72-evm-revc: fix correct phy delay

 .../devicetree/bindings/net/ti,dp83867.txt         | 12 ++++++++++
 arch/arm/boot/dts/dra72-evm-revc.dts               | 10 ++++----
 drivers/net/phy/dp83867.c                          | 28 ++++++++++++++++++++++
 3 files changed, 46 insertions(+), 4 deletions(-)

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2.10.0.372.g6fe1b14