phy_mii auto-nagotiates twice at system initialization phase

[yashi]

I'm trying to integrate phy_mii.c into my ethernet device driver. But I see odd initialization behaviour which I don't understand.

As I understand phy_mii.c starts like this:

1. Call phy_mii_initialize()in POST_KERNEL
2. In phy_mii_initialize(), advertise all speeds with autonegotiation enabled.
3. Wait for link is up in update_link_state() which is called by system worker.
4. When link is up, it starts "auto-negotiate sequence" again.

Because of this behavior, my eth phy links up, down, and re-auto-negotiate at device initialization phase. I can understand that you need to auto-negotiate when link status changed from down to up, but for the initialization, this behaviour seems wrong to me.

Am I missing anything? Does anyone know why it does the way it does?