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SubjectRe: [PATCH] arm64: dts: imx8mq-phanbell: Fix Ethernet PHY post-reset duration
Hi Alifer,

On Fri, Mar 6, 2020 at 7:41 AM Alifer Moraes <> wrote:
> i.MX8MQ Phanbell board uses Realtek RTL8211FD as Ethernet PHY.
> Its datasheet states that the proper post reset duration should be at least 50 ms.

The datasheet I found in the web states:

"The RTL8211F(I)/RTL8211FD(I) has a PHYRSTB pin to reset the chip. For
a complete PHY reset, this pin must be asserted low for at least 10ms
(Tgap in Figure 9) for the internal regulator. Wait for a further 30ms
(for internal circuits settling time) before accessing the PHY

Where does the 50ms requirement come from? Do you have an updated
datasheet that says 50ms instead?

Please clarify.


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