Re: [PATCH v2 06/10] net: pcs: xpcs: add ANRESTART support for SGMII link recovery
From: Andrew Lunn <andrew@lunn.ch>
Date: 2026-08-01 21:11:03
Also in:
linux-arm-kernel, linux-devicetree, linux-phy, linux-renesas-soc, linux-rockchip, lkml
- /* Clear AN complete status or interrupt */
- if (state->an_complete)
+ if (state->an_complete) {
+ /* Clear AN complete status or interrupt */
xpcs_write(xpcs, MDIO_MMD_VEND2, DW_VR_MII_AN_INTR_STS, 0);
+ /* Initiate the next round of AN */
+ xpcs_modify(xpcs, MDIO_MMD_VEND2, MII_BMCR, BMCR_ANRESTART,
+ BMCR_ANRESTART);
+ }
+This probably needs more wide spread testing. I would be afraid that if you kick off an AN cycle, you loose the link until it completes? You would of noticed that on your hardware, but other hardware obviously behaves differently... Andrew