From: sashiko-bot@kernel.org
To: "Jan Petrous (OSS)" <jan.petrous@oss.nxp.com>
Cc: robh@kernel.org, conor+dt@kernel.org, vkoul@kernel.org,
imx@lists.linux.dev, Frank.Li@kernel.org, olteanv@gmail.com,
neil.armstrong@linaro.org, linux-pci@vger.kernel.org,
devicetree@vger.kernel.org, linux-phy@lists.infradead.org,
wsa+renesas@sang-engineering.com
Subject: Re: [PATCH RFC v3 07/12] net: stmmac: dwmac-s32: Add SGMII support
Date: Sun, 20 Sep 2026 06:54:51 +0000 [thread overview]
Message-ID: <20260920065452.02E191F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260919-s32g_serdes-v3-7-9d68868c1e89@oss.nxp.com>
> From: "Jan Petrous (OSS)" <jan.petrous@oss.nxp.com>
>
> Wire the NXP S32G SerDes XPCS PCS into the dwmac-s32 glue layer so the
> MAC can run SGMII over a SerDes lane.
>
> Changes:
> - s32_gmac_write_phy_intf_select: replace the hard-coded RGMII selector
> with a switch on phy_interface so SGMII (0x01), RGMII, RMII and MII
> all programme the SoC control register correctly.
> - Add s32_gmac_pcs_init: obtain the phylink_pcs handle from the SerDes
> subsystem via s32g_serdes_pcs_create(), keyed by the standard
> pcs-handle property on the GMAC node pointing at the SerDes XPCS lane
> child. Propagates -EPROBE_DEFER if the SerDes driver has not probed
> yet. There is no matching exit hook: the device link created by
> s32g_serdes_pcs_create() covers the lifetime.
> [ ... ]
> Tested on an S32G3-VNP-RDB3 board: GMAC0 links at 1G over SGMII and
> passes traffic, both in SerDes mode 1 (alongside two active PCIe root
> complexes) and in mode 3.
>
> Signed-off-by: Jan Petrous (OSS) <jan.petrous@oss.nxp.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260919-s32g_serdes-v3-0-9d68868c1e89@oss.nxp.com?part=7
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next prev parent reply other threads:[~2026-09-20 6:54 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-19 6:54 [PATCH RFC v3 00/12] Add support for the NXP S32G SerDes subsystem Jan Petrous via B4 Relay
2026-09-19 6:54 ` [PATCH RFC v3 01/12] dt-bindings: phy: Add " Jan Petrous via B4 Relay
2026-09-20 6:54 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 02/12] dt-bindings: net: nxp,s32-dwmac: Document pcs-handle Jan Petrous via B4 Relay
2026-09-20 6:54 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 03/12] dt-bindings: PCI: nxp,s32g-pcie: Fix SerDes PHY phandle in example Jan Petrous via B4 Relay
2026-09-20 6:54 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 04/12] net: pcs: add NXP SerDes XPCS shared core Jan Petrous via B4 Relay
2026-09-19 15:31 ` Maxime Chevallier
2026-09-19 16:31 ` Coia Prant
2026-09-20 6:54 ` sashiko-bot
2026-09-20 18:39 ` Andrew Lunn
2026-09-19 6:54 ` [PATCH RFC v3 05/12] net: pcs: Add NXP S32G XPCS driver Jan Petrous via B4 Relay
2026-09-20 6:54 ` sashiko-bot
2026-09-20 17:07 ` Andrew Lunn
2026-09-19 6:54 ` [PATCH RFC v3 06/12] phy: freescale: s32g: Add SerDes subsystem PHY Jan Petrous via B4 Relay
2026-09-20 6:54 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 07/12] net: stmmac: dwmac-s32: Add SGMII support Jan Petrous via B4 Relay
2026-09-19 12:04 ` Maxime Chevallier
2026-09-20 6:54 ` sashiko-bot [this message]
2026-09-19 6:54 ` [PATCH RFC v3 08/12] MAINTAINERS: Add NXP S32G SerDes and SerDes xPCS core entries Jan Petrous via B4 Relay
2026-09-19 6:54 ` [PATCH RFC v3 09/12] arm64: dts: s32g: Add SCMI reset controller Jan Petrous via B4 Relay
2026-09-20 6:54 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 10/12] arm64: dts: s32g: Add SerDes controller nodes Jan Petrous via B4 Relay
2026-09-20 6:55 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 11/12] arm64: dts: s32g: Add PCIe " Jan Petrous via B4 Relay
2026-09-20 6:55 ` sashiko-bot
2026-09-19 6:54 ` [PATCH RFC v3 12/12] arm64: dts: s32g: Add S32G3-RDB3 SerDes routing variants Jan Petrous via B4 Relay
2026-09-20 6:55 ` sashiko-bot
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