[PATCH 0/3] phy: qcom: sgmii-eth: add Nord USXGMII support

[Mohd Ayaan Anwar]

This series adds support for the Ethernet SerDes found on the Qualcomm
Nord SoC.

Nord uses a QMP v7 SerDes block, which is an updated version of the
SGMII SerDes PHY IP already handled by phy-qcom-sgmii-eth. The driver
currently supports the 1.25 Gbaud and 3.125 Gbaud configurations used by
SGMII, 1000BASE-X and 2500BASE-X. Nord additionally requires the SerDes
to operate at 10.3125 Gbaud for its 10 Gigabit Ethernet interfaces.

The series can be broadly divided into three parts:

  1. Add the qcom,nord-dwmac-sgmii-phy compatible to the binding.
  2. Prepare the driver for PHY modes which require different SerDes
     programming and readiness checks. Existing SA8775P behaviour is
     unchanged.
  3. Add the QMP v7 register definitions, 10.3125 Gbaud programming
     sequence and readiness checks required for USXGMII and 10GBASE-R.

The changes have been tested on the Nord Ride SX platform, which has a
MV-Q6223 switch, running in fixed link USXGMII 10G mode.

Signed-off-by: Mohd Ayaan Anwar <mohd.anwar@xxxxxxxxxxxxxxxx>
---
Mohd Ayaan Anwar (3):
      dt-bindings: phy: qcom,sa8775p-dwmac-sgmii-phy: add Nord compatible
      phy: qcom: sgmii-eth: prepare for additional PHY modes
      phy: qcom: sgmii-eth: add Nord USXGMII support

 .../bindings/phy/qcom,sa8775p-dwmac-sgmii-phy.yaml |   1 +
 drivers/phy/qualcomm/phy-qcom-qmp-pcs-sgmii.h      |   5 +
 drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v7.h |   2 +
 .../phy/qualcomm/phy-qcom-qmp-qserdes-txrx-v7.h    |   9 +
 drivers/phy/qualcomm/phy-qcom-sgmii-eth.c          | 226 ++++++++++++++++++---
 5 files changed, 219 insertions(+), 24 deletions(-)
---
base-commit: a8c591ed6b672915e0be57843f943a2a723aff40
change-id: 20260923-nord_ethernet_serdes-c486f715f383

Best regards,
-- 
Mohd Ayaan Anwar <mohd.anwar@xxxxxxxxxxxxxxxx>