Merge branch 'support-icssg-based-ethernet-on-am65x-sr1-0-devices'

Merge branch 'support-icssg-based-ethernet-on-am65x-sr1-0-devices'

Diogo Ivo says:

====================
Support ICSSG-based Ethernet on AM65x SR1.0 devices

This series extends the current ICSSG-based Ethernet driver to support
AM65x Silicon Revision 1.0 devices.

Notable differences between the Silicon Revisions are that there is
no TX core in SR1.0 with this being handled by the firmware, requiring
extra DMA channels to manage communication with the firmware (with the
firmware being different as well) and in the packet classifier.

The motivation behind it is that a significant number of Siemens
devices containing SR1.0 silicon have been deployed in the field
and need to be supported and updated to newer kernel versions
without losing functionality.

This series is based on TI's 5.10 SDK [1].

The fifth version of this patch series can be found in [2].

Compared to the last version of the patch set there are only changes in
patch 05/10, where the fields of a struct are now explicitly declared as
__le32 so that we can properly interpret them.

Both of the problems mentioned in v4 have been addressed by disabling
those functionalities, meaning that this driver currently only supports
one TX queue and does not support a 100Mbit/s half-duplex connection.
The removal of these features has been commented in the appropriate
locations in the code.

[1]: https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/tree/?h=ti-linux-5.10.y
[2]: https://lore.kernel.org/netdev/20240326110709.26165-1-diogo.ivo@siemens.com/
====================

Link: https://lore.kernel.org/r/20240403104821.283832-1-diogo.ivo@siemens.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>