Re: u-boot debug, was: Re: U-boot on RPI3, sees disk but won't boot it

From: Mark Millard <marklmi_at_yahoo.com>
Date: Fri, 30 Sep 2022 17:07:12 UTC 
On 2022-Sep-30, at 09:53, Klaus Küchemann <maciphone2@googlemail.com> wrote:

> Am 30.09.2022 um 18:40 schrieb Klaus Küchemann <maciphone2@googlemail.com>:
>> 
>> …
>> 
> 
> well, since you seem to always get a successful drive detection by manually reset USB on the u-boot prompt:
> 
> A crude, dirty idea in pseudo-code which would never been accepted as a valid patch , lol :-). :
> 
> if ( connectionSpeed==1,5MB) {
> usb_hub_port_reset();
> }
> … or manipulating the delays….
> 

But after the manual reset USB there are 3 types of
result of attempting to boot:

A) Boots normally.
B) The RPi3B resets, starting with the RPi* firmware again,
    so the issues might repeat.
C) The RPi3B hangs.

See:

https://lists.freebsd.org/archives/freebsd-arm/2022-September/001841.html

So there would end up being more to it before it was
reliable for Bob.

===
Mark Millard
marklmi at yahoo.com