dt-bindings: net: pcs: renesas,rzn1-miic: Add RZ/T2H and RZ/N2H support

Add device tree binding support for RZ/T2H and RZ/N2H SoCs to the
existing RZ/N1 MIIC converter binding. These SoCs share similar MIIC
functionality but have architectural differences that require schema
updates.

Add new compatible strings "renesas,r9a09g077-miic" for RZ/T2H and
"renesas,r9a09g087-miic" for RZ/N2H, with the latter falling back to
the RZ/T2H variant. The new SoCs require reset support with two reset
lines for converter register reset and converter reset, which are not
present on RZ/N1.

Update port configurations to accommodate the different architectures.
RZ/N1 supports 5 ports numbered 1-5 with complex input mappings
covering indices 0-13, while RZ/T2H and RZ/N2H support 4 ports
numbered 0-3 with simplified input mappings covering indices 0-8.
Extend the switch port configuration property to support value 0 for
the new SoCs.

Add a new dt-bindings header file with media interface connection
matrix constants that map GMAC, ESC, and ETHSW ports to numeric
identifiers for use with RZ/T2H and RZ/N2H device trees.

Update DT schema validation to ensure proper port numbering and input
mappings per SoC variant.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250910204132.319975-2-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

0 files changed, 0 insertions, 0 deletions