mbox series

[net-next,v2,0/2] Add Half Duplex support for ICSSG Driver

Message ID 20230911060200.2164771-1-danishanwar@ti.com (mailing list archive)
Headers show
Series Add Half Duplex support for ICSSG Driver | expand

Message

MD Danish Anwar Sept. 11, 2023, 6:01 a.m. UTC 
This series adds support for half duplex operation for ICSSG driver.

In order to support half-duplex operation at 10M and 100M link speeds, the
PHY collision detection signal (COL) should be routed to ICSSG GPIO pin
(PRGx_PRU0/1_GPI10) so that firmware can detect collision signal and apply
the CSMA/CD algorithm applicable for half duplex operation. A DT property,
"ti,half-duplex-capable" is introduced for this purpose in the first patch
of the series. If board has PHY COL pin conencted to PRGx_PRU1_GPIO10,
this DT property can be added to eth node of ICSSG, MII port to support
half duplex operation at that port.

Second patch of the series configures driver to support half-duplex
operation if the DT property "ti,half-duplex-capable" is enabled.

This series addresses comments on [v1] (which was posted as RFC).
This series is based on the latest net-next/main. This series has no
dependency.

Changes from v1 to v2:
*) Dropped the RFC tag.
*) Added RB tags of Andrew and Roger.

[1] https://lore.kernel.org/all/20230830113134.1226970-1-danishanwar@ti.com/

Thanks and Regards,
Md Danish Anwar

MD Danish Anwar (2):
  dt-bindings: net: Add documentation for Half duplex support.
  net: ti: icssg-prueth: Add support for half duplex operation

 .../bindings/net/ti,icssg-prueth.yaml           |  7 +++++++
 drivers/net/ethernet/ti/icssg/icssg_config.c    | 14 ++++++++++++++
 drivers/net/ethernet/ti/icssg/icssg_prueth.c    | 17 +++++++++++++++--
 drivers/net/ethernet/ti/icssg/icssg_prueth.h    |  2 ++
 4 files changed, 38 insertions(+), 2 deletions(-)


base-commit: 73be7fb14e83d24383f840a22f24d3ed222ca319