[PATCH] pinctrl: airoha: fix wrong MDIO function bitmaks
Andrew Lunn
andrew at lunn.ch
Mon Sep 8 09:54:15 PDT 2025
On Mon, Sep 08, 2025 at 01:37:19PM +0200, Christian Marangi wrote:
> With further testing with an attached Aeonsemi it was discovered that
> the pinctrl MDIO function applied the wrong bitmask. The error was
> probably caused by the confusing documentation related to these bits.
>
> Inspecting what the bootloader actually configure, the SGMII_MDIO_MODE
> is never actually set but instead it's set force enable to the 2 GPIO
> (gpio 1-2) for MDC and MDIO pin.
Is the MDIO bus implemented using the GPIO bitbanging driver?
Andrew
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