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 depends on [1] which is posted as RFC. [1] https://lore.kernel.org/all/20230830110847.1219515-1-danishanwar@xxxxxx/ 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(-) -- 2.34.1
