This series adds RMII interface support for the Microchip PCI11x1x
Ethernet controller.

The PCI11x1x device supports RMII as an alternative MAC-PHY interface,
selected via the STRAP_READ software strap register. Patch 1 reads the
RMII strap bits from this register and sets the is_rmii_en flag. Patch 2
uses this flag to configure the PHY interface mode, phylink supported
interfaces, and enables RMII in hardware via the RMII_CTL register.

Change Log:
===========
v4 -> v5:
  - Always write RMII_CTL with explicit set/clear of RMII_ENABLE_,
    mirroring the SGMII_CTL pattern for a known register state on every
    probe [Simon Horman, Paolo Abeni]

v3 -> v4:
  - Fix dev_dbg() in lan743x_mdiobus_init() to print "RMII operation"
    instead of "RGMII operation" when RMII is selected [Simon Horman]

v2 -> v3:
  - Update debug log to report selected interface (SGMII/RMII/RGMII)
    instead of only SGMII enable/disable state [patch 1/2]
  - Update commit message to document that EEE is disabled by setting
    lpi_capabilities = 0 [patch 2/2]

v1 -> v2:
  - Remove redundant mac_capabilities &= ~MAC_1000FD; phylink already
    handles capability reduction for RMII via phy_caps_from_interface()
    [patch 2/2]

Thangaraj Samynathan (2):
  net: lan743x: add RMII strap status detection for PCI11x1x
  net: lan743x: add support for RMII interface

 drivers/net/ethernet/microchip/lan743x_main.c | 35 ++++++++++++++++---
 drivers/net/ethernet/microchip/lan743x_main.h |  6 ++++
 2 files changed, 37 insertions(+), 4 deletions(-)

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2.34.1