Message-Id: <20251022-macb-eyeq5-v2-0-7c140abb0581@bootlin.com>
Date: Wed, 22 Oct 2025 09:38:09 +0200
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "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>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Russell King <linux@...linux.org.uk>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Benoît Monin <benoit.monin@...tlin.com>, 
 Grégory Clement <gregory.clement@...tlin.com>, 
 Maxime Chevallier <maxime.chevallier@...tlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@...ileye.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, 
 Théo Lebrun <theo.lebrun@...tlin.com>, 
 Andrew Lunn <andrew@...n.ch>
Subject: [PATCH net-next v2 0/5] net: macb: EyeQ5 support

This series' goal is adding support to the MACB driver for EyeQ5 GEM.
The specifics for this compatible are:

 - HW cannot add dummy bytes at the start of IP packets for alignment
   purposes. The behavior can be detected using DCFG6 so it isn't
   attached to compatible data.

 - The hardware LSO/TSO is known to be buggy: add a compatible
   capability flag to force disable it.

 - At init, we have to wiggle two syscon registers that configure the
   PHY integration.

   In past attempts [0] we did it in macb_config->init() using a syscon
   regmap. That was far from ideal so now a generic PHY driver
   abstracts that away. We reuse the bp->sgmii_phy field used by some
   compatibles.

   We have to add a phy_set_mode() call as the PHY power on sequence
   depends on whether we do RGMII or SGMII.

This V2 sees the generic PHY driver drivers/phy/phy-eyeq5-eth.c move
into its separate series. Here you only get net-next patches.

Thanks,
Have a nice day,
Théo

[0]: https://lore.kernel.org/lkml/20250627-macb-v2-15-ff8207d0bb77@bootlin.com/

Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
Changes in v2:
- Drop non net-next patches.
- Re-run get_maintainers.pl to shorten the To/Cc list.
- Rebase upon latest net-next; no changes. Tested on HW.
- Link to v1: https://lore.kernel.org/r/20251021-macb-eyeq5-v1-0-3b0b5a9d2f85@bootlin.com

Past versions of the MACB EyeQ5 patches:
 - March 2025: [PATCH net-next 00/13] Support the Cadence MACB/GEM
   instances on Mobileye EyeQ5 SoCs
   https://lore.kernel.org/lkml/20250321-macb-v1-0-537b7e37971d@bootlin.com/
 - June 2025: [PATCH net-next v2 00/18] Support the Cadence MACB/GEM
   instances on Mobileye EyeQ5 SoCs
   https://lore.kernel.org/lkml/20250627-macb-v2-0-ff8207d0bb77@bootlin.com/
 - August 2025: [PATCH net v3 00/16] net: macb: various fixes & cleanup
   https://lore.kernel.org/lkml/20250808-macb-fixes-v3-0-08f1fcb5179f@bootlin.com/

---
Théo Lebrun (5):
      dt-bindings: net: cdns,macb: add Mobileye EyeQ5 ethernet interface
      net: macb: match skb_reserve(skb, NET_IP_ALIGN) with HW alignment
      net: macb: add no LSO capability (MACB_CAPS_NO_LSO)
      net: macb: rename bp->sgmii_phy field to bp->phy
      net: macb: Add "mobileye,eyeq5-gem" compatible

 .../devicetree/bindings/net/cdns,macb.yaml         | 10 +++
 drivers/net/ethernet/cadence/macb.h                |  6 +-
 drivers/net/ethernet/cadence/macb_main.c           | 92 +++++++++++++++++-----
 3 files changed, 89 insertions(+), 19 deletions(-)
---
base-commit: 962ac5ca99a5c3e7469215bf47572440402dfd59
change-id: 20251020-macb-eyeq5-fe2c0d1edc75

Best regards,
-- 
Théo Lebrun <theo.lebrun@...tlin.com>

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