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

…`found  someone in the WWW who fixed similar issues of an even earlier rpi-model 
by increasing/adding mdelay values,  no clue if something like that would be a valid test worth…
Like this :
* requests in the first microframe, the stick crashes. Wait about
         * one microframe duration here (1mS for USB 1.x , 125uS for USB 2.0).
         */
-       mdelay(1);
+       mdelay(300);
 
/* only support for one config for now */
        err = usb_get_configuration_len(dev, 0);
+       mdelay(100);

 usb_set_maxpacket(dev);
+       mdelay(100);


Regards

Klaus