Re: [PATCH net-next v5 0/5] Add PCS support for Qualcomm IPQ9574 SoC
From: Jakub Kicinski <kuba@kernel.org>
Date: 2025-02-12 03:59:36
Also in:
linux-arm-msm, linux-devicetree, lkml
On Fri, 7 Feb 2025 23:53:11 +0800 Lei Wei wrote:
The 'UNIPHY' PCS block in the Qualcomm IPQ9574 SoC provides Ethernet PCS and SerDes functions. It supports 1Gbps mode PCS and 10-Gigabit mode PCS (XPCS) functions, and supports various interface modes for the connectivity between the Ethernet MAC and the external PHYs/Switch. There are three UNIPHY (PCS) instances in IPQ9574, supporting the six Ethernet ports. This patch series adds base driver support for initializing the PCS, and PCS phylink ops for managing the PCS modes/states. Support for SGMII/QSGMII (PCS) and USXGMII (XPCS) modes is being added initially. The Ethernet driver which handles the MAC operations will create the PCS instances and phylink for the MAC, by utilizing the API exported by this driver. While support is being added initially for IPQ9574, the driver is expected to be easily extendable later for other SoCs in the IPQ family such as IPQ5332.
Could someone with PHY, or even, dare I say, phylink expertise take a look here?