[PATCH net-next v2 00/12] Add ETHSW support for Renesas RZ/T2H and RZ/N2H SoCs
From: Prabhakar
Date: Thu Oct 01 2026 - 12:41:42 EST
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
Hi All,
This series of patches adds support for the Renesas RZ/T2H and RZ/N2H SoCs
which integrate an Ethernet switch IP variant called ETHSW. The ETHSW is
largely compatible with the A5PSW switch found on RZ/N1 SoCs, but has
several key differences in register layout and hardware configuration. The
series includes updates to the DSA driver, device tree bindings, and
Kconfig to enable support for these SoCs.
v1->v2:
- Added RB tag
- Fixed review comments from Vladimir.
- Added info about the IP issue and the workaround
v1: https://lore.kernel.org/all/20251121113553.2955854-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/
Cheers,
Prabhakar
Lad Prabhakar (12):
net: dsa: tag_rzn1_a5psw: Drop redundant ETH_P_DSA_A5PSW definition
net: dsa: tag_rzn1_a5psw: Add RZ/T2H ETHSW tag protocol support
net: dsa: Kconfig: Expand config description to cover RZ/T2H and
RZ/N2H ETHSW
dt-bindings: net: dsa: renesas,rzn1-a5psw: Add RZ/T2H and RZ/N2H ETHSW
support
net: dsa: rzn1-a5psw: Add support for optional reset control
net: dsa: rzn1-a5psw: Add support for optional timestamp clock
net: dsa: rzn1-a5psw: Make use dev_err_probe()
net: dsa: rzn1-a5psw: Get switch info via OF data
net: dsa: rzn1-a5psw: Choose tagging protocol based on compatible
string
net: dsa: rzn1-a5psw: Add fixed frame length workaround for management
port
net: dsa: rzn1-a5psw: Add support for RZ/T2H Ethernet switch
net: dsa: Kconfig: Enable support for RZ/T2H and RZ/N2H SoCs
.../bindings/net/dsa/renesas,rzn1-a5psw.yaml | 154 +++++++++++++++---
drivers/net/dsa/Kconfig | 9 +-
drivers/net/dsa/rzn1_a5psw.c | 79 +++++++--
drivers/net/dsa/rzn1_a5psw.h | 25 ++-
include/net/dsa.h | 2 +
include/uapi/linux/if_ether.h | 2 +-
net/dsa/Kconfig | 9 +-
net/dsa/tag_rzn1_a5psw.c | 22 ++-
8 files changed, 250 insertions(+), 52 deletions(-)
--
2.55.0