Re: U-Boot fails to load from SD when a USB dual HDD device is attached

Update:

While the bug in question is not a FreeBSD-specific issue, I figured 
that I would share this update for anyone who might benefit.

I have built U-Boot from the ports tree (sysutils/u-boot-rpi4) with the 
following changes:

files/rpi4_fragment:

  * *CONFIG_USB=n*
  * *CONFIG_USB_HOST=n*
  * *CONFIG_USB_STORAGE=n*
  * *CONFIG_USB_XHCI_PCI=n*
  * *CONFIG_USB_XHCI_HCD=n**
    *
  * *CONFIG_CMD_USB=n*

U-Boot gives an error message regarding the unavailable 'usb' command 
since it's been disabled and I didn't remove a reference to it from the 
startup script, but it booted up anyway.

This workaround prevents the bug (if you don't use a USB boot device) 
while I wait for some feedback from the U-Boot project maintainers.

On 6/29/22 22:17, Bradley Proffit wrote:
> Thanks for the pointers, everyone.
>
> I confirmed that this particular USB device, being self-powered, is 
> not pulling a current on the pi's USB port. I think this rules out a 
> voltage problem.
>
> The U-Boot interactive shell still shows the MMC device, but refuses 
> to boot from it under these conditions. The one-liner workaround you 
> mentioned is unfortunately not resolving this problem.
>
> Until I can find time to try fixing the bug, I am building U-Boot 
> without support for USB storage devices and network booting, since I 
> don't need those features at this time. I'll let you know if that works.
>
>
> Bradley
>
> On 6/29/22 9:29 AM, Mark Millard wrote:
>> On 2022-Jun-29, at 07:35, Klaus Küchemann <[email protected]> 
>> wrote:
>>
>>> On 2022-Jun-29, at 02:06, Bradley Proffit 
>>> <[email protected]> wrote:
>>>
>>>> I'm running FreeBSD 13.1 on the Raspberry Pi 4B, with a new dual 
>>>> SATA-to-USB hard drive docking station, and I've noticed a peculiar 
>>>> situation: U-Boot fails to load FreeBSD from the SD card when the 
>>>> docking station is plugged in and has two hard drives in it 
>>>> (presenting two USB storage devices to U-Boot), but still succeeds 
>>>> when:  …………...
>>>
>>>
>>>> Am 29.06.2022 um 16:09 schrieb Mark Millard <[email protected]>:
>>>>
>>>>
>>>> See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256441
>>>>
>>>> The problem is not limited or specific to FreeBSD's use of
>>>> U-Boot. For example, demonstrated with Fedora 33 and some
>>>> openbsd version as well. The problem is not new.
>>>>
>>>> . . .
>>>
>>> didn`t we workaround a similar issue ? :
>>>
>>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253983#c59
>> I forgot to look up and reference:
>>
>> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253983
>>
>> as well. I should have listed both, for sure.
>>
>> ===
>> Mark Millard
>> marklmi at yahoo.com
>>
Bradley Proffit
amaranth.digital