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

From: bob prohaska <fbsd_at_www.zefox.net>
Date: Mon, 03 Oct 2022 00:46:24 UTC 
On Sun, Oct 02, 2022 at 10:18:28PM +0200, Klaus K??chemann wrote:
> 
> hard to read and remember every log but I thought Bob wrote about aprox. 30 successful reboots after the mdelay patch,

That is correct. Shortly afterward I tried a second usb-sata enclosure.

I didn't immediately notice a difference and though it didn't matter.
You comments served to make me think again.

> while of course that could be coincidence, who really knows what happens in this untrackable inconsistent behavior of the usb-boot?!

Unfortunately in this case, human inconsistency (my own, alas) was compounding at least
part of the trouble. 

The more troublesome bridge contains a JMS577 chip, the less troublesome JMS576.
https://pdf1.alldatasheet.com/datasheet-pdf/view/1136441/JMICRON/JMS576.html
Contains a brief description, but I didn't see much quantitative information.

I've reverted the host to the less troublesome JMS576 and will try to 
reproduce some of the earlier results as a sanity check.

Thanks for rattling my cage!

bob prohaska
 


> 
> 
> 
>