[lkml]   [2020]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 5/8] arm64: dts: meson: remove reset-gpios from ethernet node for VIM2 meson-gxm-khadas-vim2
Hello Artem,

On Fri, Sep 25, 2020 at 5:31 AM Artem Lapkin <> wrote:
> 1) fix down/up ethernet interface - need remove reset-gpios for ethernet node
> `ifconfig eth0 down && ifconfig eth0 up` # didnt works with reset-gpios
what is the problem that you observe here?
did you investigate further why resetting the PHY changes this?

the problem I see with removing the reset-gpios is that we cannot
fully reset the PHY into a defined state
some of the registers are kept with a soft-reset

> 2) add max-speed 1Gbit
my understanding is that max-speed is needed when (in this case) the
PHY advertises a higher speed than the hardware is actually capable of
(for whatever reason)
what is the problem that you have seen when max-speed was not set?

Best regards,

 \ /
  Last update: 2020-09-25 09:42    [W:0.109 / U:0.688 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site