I have been having problems making the Gigabit Ethernet interface work on the SAMA5D3xEK board with recent versions of U-Boot. After much debugging it eventually transpired that this was because the PHY's skew registers were not being programmed, and it has never worked since this board was converted to use device trees. After fixing the problem that caused the skew values to be missed, I found that the wrong values got programmed, so I had to fix that as well. The following patches resolve both issues.
James Byrne (2): net: phy: micrel: Use correct skew values on KSZ9021 net: phy: micrel: Find Micrel PHY node correctly
arch/arm/dts/sama5d3xcm.dtsi | 32 +++++++++---------- arch/arm/dts/sama5d3xcm_cmp.dtsi | 32 +++++++++---------- arch/arm/dts/socfpga_arria5_socdk.dts | 4 +-- arch/arm/dts/socfpga_cyclone5_is1.dts | 4 +-- arch/arm/dts/socfpga_cyclone5_socdk.dts | 4 +-- arch/arm/dts/socfpga_cyclone5_sockit.dts | 4 +-- arch/arm/dts/socfpga_cyclone5_vining_fpga.dts | 4 +-- .../net/micrel-ksz90x1.txt | 27 ++++++++++++++++ drivers/net/phy/micrel_ksz90x1.c | 24 +++++++++++--- 9 files changed, 88 insertions(+), 47 deletions(-)