netdev - [PATCH net-next 00/13] net: dsa: lantiq_gswip: Add support for MaxLinear GSW1xx switch family

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Message-ID: <cover.1761324950.git.daniel@makrotopia.org>
Date: Fri, 24 Oct 2025 18:01:07 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Hauke Mehrtens <hauke@...ke-m.de>, Andrew Lunn <andrew@...n.ch>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Simon Horman <horms@...nel.org>,
	Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Andreas Schirm <andreas.schirm@...mens.com>,
	Lukas Stockmann <lukas.stockmann@...mens.com>,
	Alexander Sverdlin <alexander.sverdlin@...mens.com>,
	Peter Christen <peter.christen@...mens.com>,
	Avinash Jayaraman <ajayaraman@...linear.com>,
	Bing tao Xu <bxu@...linear.com>, Liang Xu <lxu@...linear.com>,
	Juraj Povazanec <jpovazanec@...linear.com>,
	"Fanni (Fang-Yi) Chan" <fchan@...linear.com>,
	"Benny (Ying-Tsan) Weng" <yweng@...linear.com>,
	"Livia M. Rosu" <lrosu@...linear.com>,
	John Crispin <john@...ozen.org>
Subject: [PATCH net-next 00/13] net: dsa: lantiq_gswip: Add support for
 MaxLinear GSW1xx switch family

This patch series extends the existing lantiq_gswip DSA driver to support
the MaxLinear GSW1xx family of dedicated Ethernet switch ICs. These switches
are based on the same IP as the Lantiq/Intel GSWIP found in VR9 and xRX
MIPS router SoCs, but are connected via MDIO instead of memory-mapped I/O.

The series includes several improvements and refactoring to prepare for the
new hardware support.

The GSW1xx family includes several variants:
 - GSW120: 4 ports, 2 PHYs, RGMII & SGMII/2500Base-X
 - GSW125: 4 ports, 2 PHYs, RGMII & SGMII/2500Base-X, industrial temperature
 - GSW140: 6 ports, 4 PHYs, RGMII & SGMII/2500Base-X
 - GSW141: 6 ports, 4 PHYs, RGMII & SGMII
 - GSW145: 6 ports, 4 PHYs, RGMII & SGMII/2500Base-X, industrial temperature

Key features implemented:
 - MDIO-based register access using regmap
 - Support for SGMII/1000Base-X/2500Base-X SerDes interfaces
 - Configurable MII delays via device tree properties
 - Energy Efficient Ethernet (EEE) support
 - enabling/disabling learning

Daniel Golle (13):
  net: dsa: lantiq_gswip: split into common and MMIO parts
  net: dsa: lantiq_gswip: support enable/disable learning
  net: dsa: lantiq_gswip: support Energy Efficient Ethernet
  net: dsa: lantiq_gswip: set link parameters also for CPU port
  net: dsa: lantiq_gswip: define and use
    GSWIP_TABLE_MAC_BRIDGE_VAL1_VALID
  dt-bindings: net: dsa: lantiq,gswip: add support for MII delay
    properties
  net: dsa: lantiq_gswip: allow adjusting MII delays
  dt-bindings: net: dsa: lantiq,gswip: add MaxLinear RMII refclk output
    property
  net: dsa: lantiq_gswip: add vendor property to setup MII refclk output
  dt-bindings: net: dsa: lantiq,gswip: add support for MaxLinear GSW1xx
    switches
  net: dsa: add tagging driver for MaxLinear GSW1xx switch family
  net: dsa: lantiq_gswip: add registers specific for MaxLinear GSW1xx
  net: dsa: add driver for MaxLinear GSW1xx switch family

 .../bindings/net/dsa/lantiq,gswip.yaml        |  290 ++-
 MAINTAINERS                                   |    3 +-
 drivers/net/dsa/lantiq/Kconfig                |   18 +-
 drivers/net/dsa/lantiq/Makefile               |    2 +
 drivers/net/dsa/lantiq/lantiq_gswip.c         | 1617 +--------------
 drivers/net/dsa/lantiq/lantiq_gswip.h         |  128 ++
 drivers/net/dsa/lantiq/lantiq_gswip_common.c  | 1747 +++++++++++++++++
 drivers/net/dsa/lantiq/mxl-gsw1xx.c           |  685 +++++++
 drivers/net/dsa/lantiq/mxl-gsw1xx_pce.h       |  154 ++
 include/net/dsa.h                             |    2 +
 net/dsa/Kconfig                               |    8 +
 net/dsa/Makefile                              |    1 +
 net/dsa/tag_mxl-gsw1xx.c                      |  138 ++
 13 files changed, 3127 insertions(+), 1666 deletions(-)
 create mode 100644 drivers/net/dsa/lantiq/lantiq_gswip_common.c
 create mode 100644 drivers/net/dsa/lantiq/mxl-gsw1xx.c
 create mode 100644 drivers/net/dsa/lantiq/mxl-gsw1xx_pce.h
 create mode 100644 net/dsa/tag_mxl-gsw1xx.c

-- 
2.51.0