Re: [PATCH v12 4/4] net: phy: bcm-phy-lib: Implement BroadR-Reach link modes

From: Andrew Lunn
Date: Sat Jul 13 2024 - 14:30:20 EST


On Fri, Jul 12, 2024 at 05:07:09PM +0200, Kamil Horák (2N) wrote:
> Implement single-pair BroadR-Reach modes on bcm5481x PHY by Broadcom.
> Create set of functions alternative to IEEE 802.3 to handle
> configuration of these modes on compatible Broadcom PHYs.
> There is only subset of capabilities supported because of limited
> collection of hardware available for the development.
> For BroadR-Reach capable PHYs, the LRE (Long Reach Ethernet)
> alternative register set is handled. Only bcm54811 PHY is verified,
> for bcm54810, there is some support possible but untested. There
> is no auto-negotiation of the link parameters (called LDS in the
> Broadcom terminology, Long-Distance Signaling) for bcm54811.
> It should be possible to enable LDS for bcm54810.
>
> Signed-off-by: Kamil Horák (2N) <kamilh@xxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

Andrew