Re: [PATCH] ARM: dts: lan966x: Fix the access to the PHYs for pcb8290
From: Andrew Lunn
Date: Wed Nov 19 2025 - 14:38:35 EST
On Wed, Nov 19, 2025 at 02:47:50PM +0100, Horatiu Vultur wrote:
> The problem is that the MDIO controller can't detect any of the PHYs.
> The reason is that the lan966x is not pulling high the GPIO 53 that is
> connected to the PHYs reset GPIO. Without doing this the PHYs are kept
> in reset. The mdio controller framework has the possiblity to control a
> GPIO to release the reset of the PHYs. So take advantage of this and set
> line to be high before accessing the PHYs.
>
> Signed-off-by: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Andrew