[PATCH net-next v3 00/10] macb usrio/tsu patches

Conor Dooley
2026-03-10T17:19:04Z

Hey folks,

At the very least, it'd be good of the soc vendor folks could check
their platforms and see if their usrio stuff actually lines up with what
the driver currently calls "macb_default_usrio". Ours didn't and it was
a nasty surprise.

Theo, you added eyeq5 recently. Does it genuinely have the same usrio
bits as the at91 devices?

Ryan and I figured out that the sama7g5 stuff is not actually using the
same usrio bits as earlier devices, so there's now more patches in this
series to split them apart. I've not tested the split or the new
property due to lack of hardware, but Ryan has.

Cheers,
Conor.

v3:
- reorder patches
- fix smatch issue reported by Simon
- add patches reworking usrio handling of clken/refclk (and remove the
issue the llm reported in the process)
- add a new devicetree property for refclk selection, replacing the
existing one.
- drop the dts patch

CC: Valentina.FernandezAlanis@microchip.com
CC: Andrew Lunn <andrew+netdev@lunn.ch>
CC: David S. Miller <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jakub Kicinski <kuba@kernel.org>
CC: Paolo Abeni <pabeni@redhat.com>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
CC: Conor Dooley <conor+dt@kernel.org>
CC: Daire McNamara <daire.mcnamara@microchip.com>
CC: Paul Walmsley <pjw@kernel.org>
CC: Palmer Dabbelt <palmer@dabbelt.com>
CC: Albert Ou <aou@eecs.berkeley.edu>
CC: Alexandre Ghiti <alex@ghiti.fr>
CC: Nicolas Ferre <nicolas.ferre@microchip.com>
CC: Claudiu Beznea <claudiu.beznea@tuxon.dev>
CC: Richard Cochran <richardcochran@gmail.com>
CC: Samuel Holland <samuel.holland@sifive.com>
CC: netdev@vger.kernel.org
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-riscv@lists.infradead.org
CC: Dave Stevenson <dave.stevenson@raspberrypi.com>
CC: Sean Anderson <sean.anderson@linux.dev>
CC: Vineeth Karumanchi <vineeth.karumanchi@amd.com>
CC: Abin Joseph <abin.joseph@amd.com>
CC: Théo Lebrun <theo.lebrun@bootlin.com>
CC: Ryan.Wanner@microchip.com

Conor Dooley (10):
net: macb: rename macb_default_usrio to at91_default_usrio as not all
platforms have mii mode control in usrio
net: macb: split USRIO_HAS_CLKEN capability in two
dt-bindings: net: cdns,macb: replace cdns,refclk-ext with
cdns,refclk-source
net: macb: rework usrio refclk selection code
net: macb: np4 doesn't need a usrio pointer
net: macb: add mpfs specific usrio configuration
net: macb: warn on pclk use as a tsu_clk fallback
net: macb: clean up tsu clk rate acquisition
dt-bindings: net: macb: add property indicating timer adjust mode
net: macb: timer adjust mode is not supported

.../devicetree/bindings/net/cdns,macb.yaml | 54 ++++-
drivers/net/ethernet/cadence/macb.h | 6 +
drivers/net/ethernet/cadence/macb_main.c | 197 ++++++++++++------
3 files changed, 186 insertions(+), 71 deletions(-)