Add device tree configuration support whether Ethernet controller's
ENETx_TX_CLK output driver is enabled.

Also add device tree configuration support whether Ethernet controller's
ENETx_TX_CLK pin is used as reference clock for Ethernet. If not defined
then ref_enetpllx is used as reference clock.

If the new properties are not present then the existing behavior is
preserved.

Vesa Jääskeläinen (2):
  dt-bindings: net: fsl,fec: Add TX clock controls
  ARM: imx: imx6sx: Add support for TX clock controls

 .../devicetree/bindings/net/fsl,fec.yaml      | 15 +++++++++++
 arch/arm/mach-imx/mach-imx6sx.c               | 27 +++++++++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

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2.34.1