[PATCH net-next] net: phy: mediatek: support MT7530 PHYs on EN71221 MCM

[Caleb James DeLisle]

On 10/09/2026 04:03, Andrew Lunn wrote:
>> +	/* Clause 22 local data. */
>> +	ret = phy_write(phydev, MII_CTRL1000, 0x1e00);
> Please express this using
>
> /* 1000BASE-T Control register */
> #define ADVERTISE_1000FULL	0x0200  /* Advertise 1000BASE-T full duplex */
> #define ADVERTISE_1000HALF	0x0100  /* Advertise 1000BASE-T half duplex */
> #define CTL1000_PREFER_MASTER	0x0400  /* prefer to operate as master */
> #define CTL1000_AS_MASTER	0x0800
> #define CTL1000_ENABLE_MASTER	0x1000
>
> Once we have symbolic names, it might be obvious what this is doing,
> and if there is a better way to do it.
>
>
>> +	/* Vendor profile disables 100/1000BASE-T EEE advertisement. */
>> +	ret = phy_write_mmd(phydev, MDIO_MMD_AN, 0x003c, 0x0000);
>> +	if (ret < 0)
>> +		return ret;
> Any idea why? Is EEE broken? If it is, phy_disable_eee().


I am so sorry, we had this entire conversation about the other PHY and I 
did not check carefully enough that this one is doing the same thing. I 
will test and submit the same solution we arrived at over there.


Thanks,

Caleb


>
>      Andrew