[PATCH net-next v3 3/5] net: stmmac: dwmac-rk: Move integrated_phy_powerup/down functions

Andrew Lunn andrew at lunn.ch
Wed Mar 19 16:22:27 PDT 2025


> > Do you know what these MACPHY_ID are? I hope it is not what you get
> > when you read PHY registers 2 and 3?
> 
> I think it may be:
> 
>   GRF_MACPHY_CON2
>   15:0   macphy_id / PHY ID Number, macphy_cfg_phy_id[15:0]
> 
>   GRF_MACPHY_CON3
>   15:12  macphy_cfg_rev_nr / Manufacturer's Revision Number
>   11:6   macphy_model_nr / Manufacturer's Model Number
>   5:0    macphy_id / PHY ID Number, macphy_cfg_phy_id[21:16]
> 
> and
> 
>   MACPHY_PHY_IDENTIFIER1 - Address: 02
>   15:0   PHY ID number / default:cfg_phy_id[15:0]
> 
>   MACPHY_PHY_IDENTIFIER2 - Address: 03
>   15:10  PHY ID number / default:cfg_phy_id[21:16]
>   9:4    Model number / default:cfg_model_nr[5:0]
>   3:0    Revision number / default:cfg_rev_nr[3:0]
> 
> So likely what you get when you read PHY registers 2 and 3.

Ah:

drivers/net/phy/rockchip.c

#define INTERNAL_EPHY_ID                        0x1234d400

However, it is not clear where the d4 come from.

The problem here is the upper part should be an OUI from the vendor.
I doubt rockchip actually own this OUI. They do actually have the MAC
OUI: 10:DC:B6:90:00:00/28. I don't know if you can use a MAC OUI with
a PHY ID?

	Andrew



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