Re: [PATCH v2 2/2] net: ethernet: Add driver for Sunplus SP7021

On Fri, Nov 26, 2021 at 04:12:46PM +0000, Wells Lu 呂芳騰 wrote:

Hi Andrew,


From data provided by ASIC engineer, MAC of SP7021 only
reads the 4 registers of PHY:
0: Control register
1: Status register

This is the register which has latching of the link
status. genphy_update_link() expects this latching behaviour, and if
the hardware reads the register, that behaviour is not going to
happen.

	Andrew