[PATCH net-next v2 0/2] net: axienet: allow instantiation without a device tree

[Sagi Maimon <maimon.sagi@gmail.com>]

The ADVA TimeCard X2 is a PCIe timing card driven by ptp_ocp.  Its FPGA
contains an AXI Ethernet MAC with an AXI DMA engine.  The plan discussed
on netdev [1] is for ptp_ocp to register the MAC as a child platform
device described by a software node, so that this driver runs it rather
than a copy in ptp_ocp; Vadim Fedorenko agreed that a platform device is
the way to go.

These two patches are what axienet needs for that, apart from one more
change - letting the DMA device differ from the platform device - which
has no user without ptp_ocp and will be posted together with the ptp_ocp
patches:

1/2 reads the probe-time configuration through the device_property and
    fwnode APIs, so it can come from a software node.  No change for
    device tree users.
2/2 adds a MODULE_ALIAS, so a device registered by name autoloads the
    module.

Both were tested on the X2 with a local ptp_ocp change.

[1] https://lore.kernel.org/netdev/CAMuE1bHr84n5LKcj02HmMR5XefPtvQ-UEJAx7+UKfYvRgS0eDg@mail.gmail.com/

Changes in v2:
- 1/2: convert only the four lookups a software node provides:
  xlnx,rxmem, phy-mode, the MAC address and the PHY connection.
  xlnx,switch-x-sgmii and the deprecated xlnx,phy-type stay OF only, as
  Andrew asked, and so do xlnx,txcsum, xlnx,rxcsum and the "dmas" test,
  which the X2 does not use either.
- 1/2: v1's hardware test was not re-run.  The X2's software node sets
  none of the lookups that went back to OF, so each finds nothing with
  either version.
- 2/2: unchanged.
- v1: https://lore.kernel.org/netdev/20260927073843.346910-1-maimon.sagi@gmail.com/

Sagi Maimon (2):
  net: axienet: use device_property and fwnode APIs for probe-time
    config
  net: axienet: add a MODULE_ALIAS for platform instantiation

 .../net/ethernet/xilinx/xilinx_axienet_main.c | 22 ++++++++++++++-----
 1 file changed, 16 insertions(+), 6 deletions(-)


base-commit: 014d795c73837ea2339a4ea8e8f82c6e959b845d
-- 
2.47.0