[PATCH v2 7/9] arm64: dts: rockchip: use generic Ethernet PHY reset bindings for Lunzn Fastrhino R68S
Chukun Pan
amadeus at jmu.edu.cn
Wed Jul 10 06:30:29 PDT 2024
> what's the reason behind the changed timings?
>
> The original comment stated,
> /* Reset time is 15ms, 50ms for rtl8211f */
> so that timing change needs an explanation please :-)
I don't know why this comment says that, but it's clearly wrong.
According to the PHY datasheet, the RTL8211F PHY needs a 10ms
assert delay and at least 72ms deassert delay. Considering the
possibility of mixed use of PHY chips, the reset time should be
further increased.
Thanks,
Chukun
--
2.25.1
More information about the Linux-rockchip
mailing list