[v3,0/3] Add driver for lan966x Serdes driver

Message

Horatiu Vultur Oct. 15, 2021, 12:39 p.m. UTC

This patch serie adds support for Microchip lan966x serdes. The lan966x
device which contains this serdes has 8 interfaces, consisting of 2
copper transceivers, 3 Serdes and 2 RGMII interfaces and 2 of the
Serdes support QSGMII. The driver add the functionality of "muxing" the
interfaces to different switch ports.

The following table shows which interfaces can be supported by the port.

PortNumber    Max Speed    Ethernet interface options
    0            1Gbps       CuPHY, 1G SGMII or QSGMII
    1            1Gbps       CuPHY, 1G SGMII or QSGMII
    2          2.5Gbps       2.5G SGMII, QSGMII, RGMII
    3          2.5Gbps       2.5G SGMII, QSGMII, RGMII
    4          2.5Gbps       2.5G SGMII, QSGMII
    5            1Gbps       QSGMII, RGMII
    6            1Gbps       QSGMII, RGMII
    7            1Gbps       QSGMII

v2->v3:
- remove unused includes
- add missing '...' in microchip,lan966x-serdes.yaml
- rename lan966x-serdes.h to phy-lan966x-serdes.h
- Rename CU->PHY and RG->RGMII
- update commit message for PATCH 2

v1->v2:
- replace the regmap with iomem
- update DT bindings

Horatiu Vultur (3):
  dt-bindings: phy: Add lan966x-serdes binding
  dt-bindings: phy: Add constants for lan966x serdes
  phy: Add lan966x ethernet serdes PHY driver

 .../phy/microchip,lan966x-serdes.yaml         |  45 ++
 drivers/phy/microchip/Kconfig                 |   8 +
 drivers/phy/microchip/Makefile                |   1 +
 drivers/phy/microchip/lan966x_serdes.c        | 540 ++++++++++++++++++
 drivers/phy/microchip/lan966x_serdes_regs.h   | 482 ++++++++++++++++
 include/dt-bindings/phy/phy-lan966x-serdes.h  |  14 +
 6 files changed, 1090 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/microchip,lan966x-serdes.yaml
 create mode 100644 drivers/phy/microchip/lan966x_serdes.c
 create mode 100644 drivers/phy/microchip/lan966x_serdes_regs.h
 create mode 100644 include/dt-bindings/phy/phy-lan966x-serdes.h