[v4,0/4] RTL9300 MDIO driver

Message

Chris Packham Jan. 20, 2025, 4:02 a.m. UTC

This series adds a driver for the MDIO controller on the RTL9300 family
of devices. The controller is a little unique in that we can't access the SMI
interfaces directly. This means we need to use the hardware description from
the DTS to compute a mapping of switch port to mdio bus/address.

Chris Packham (4):
  dt-bindings: net: Add Realtek MDIO controller
  dt-bindings: mfd: Add MDIO interface to rtl9301-switch
  mips: dts: realtek: Add MDIO controller
  net: mdio: Add RTL9300 MDIO driver

 .../bindings/mfd/realtek,rtl9301-switch.yaml  |  24 +
 .../bindings/net/realtek,rtl9301-mdio.yaml    |  93 ++++
 arch/mips/boot/dts/realtek/rtl930x.dtsi       |  32 ++
 drivers/net/mdio/Kconfig                      |   7 +
 drivers/net/mdio/Makefile                     |   1 +
 drivers/net/mdio/mdio-realtek-rtl9300.c       | 417 ++++++++++++++++++
 6 files changed, 574 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/realtek,rtl9301-mdio.yaml
 create mode 100644 drivers/net/mdio/mdio-realtek-rtl9300.c