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

From: Klaus_Küchemann <maciphone2_at_googlemail.com>
Date: Fri, 30 Sep 2022 17:25:57 UTC

> Am 30.09.2022 um 19:13 schrieb Mark Millard <marklmi@yahoo.com>:
> 
> On 2022-Sep-30, at 10:07, Klaus Küchemann <maciphone2@googlemail.com> wrote:
> 
>> 
>>> Am 30.09.2022 um 18:58 schrieb Mark Millard <marklmi@yahoo.com>:
>>> …
>>> .
>>> The 2000ms is from the U-Boot build setting usb_pgood_delay
>>> explicitly: Bob is using the part of the patch that I use to
>>> get my every different devices to boot.
>>> 
>>>> …
>> Ah, O.K., no clue if giving e.g. 3000 instead of 2000 or so will help,
>> But if Bob got improvements by setting your values , 
>> I would consider continuing to manipulate that values.
>> 
> 
> It is more like they made no differences so we have not been
> bothering to eliminate them. That way I can build and test
> the build in my context, still with a bootable environment
> for my media.
> 
> ===
> Mark Millard
> marklmi at yahoo.com


O.K., thanks for info…
what we know now is that port1 of the Hub is (sometimes) underpowered ( 1,5MB), has to be 480MB instead..
While even a broken USB cable can of course trigger this issue ,
I guess this is not the first time that an USB hub-port fails by underpower on those dev boards or elsewhere,
So `ring ring` HPS,... how to force inject more power to port1 in /common/usb_hub.c ?  :-) Ha Ha 

Regards 

Klaus