usb-only rpi 3b+ (+UART foo)

[Per olof Ljungmark]

On 8/6/18 6:01 PM, Emmanuel Vadot wrote:
> On Mon, 6 Aug 2018 17:54:19 +0200
> Per olof Ljungmark <peo at nethead.se> wrote:
> 
>> On 8/6/18 5:19 PM, John Kennedy wrote:
>>> On Mon, Aug 06, 2018 at 04:46:03PM +0200, Per olof Ljungmark wrote:
>>>> Did you try FreeBSD 12.0-CURRENT #0 r336479: Thu Jul 19 14:52:02 UTC 2018 ?
>>>>
>>>> Neither my rpi3b or rpi3b+ will boot images made after that rev.
>>>
>>> Booting off of SD-card, I've used both 20180719-r336479 and 20180726-r336739
>>> (from the RPI3 FreeBSD 12.0-CURRENT Development Snapshots).
>>>
>>> In addition, I'm pretty sure that I've booted off of USB via a USB memory card
>>> reader with the SD-card put in it, but I'll have to test that again.  I haven't
>>> had a reason to try 20180802-r337160 yet.
>>>
>>> As for you:  No booting at all?  IE, rainbow screen -> u-boot, kernel + modules
>>> load, no kernel boot, or all the way into proper root-fs-mounted success?
>>>
>>
>> Stops after loading kernel:
>>
>> Booting [/boot/kernel/kernel]
>> Using DTB privided by EFI at 0x7ff8000.
>> EFI frambuffer information:
>> addr, size	0x3e330000, 0x8ca000
>> dimensions	1920 x 1200
>> stride		1920
>> masks		0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000
>>
>> and then nothing
>>
>> Happens for me with all stock images after July 19.
> 
>  Probably related to this :
> https://svnweb.freebsd.org/base?view=revision&revision=336999
> 
>  Note that this was added in UPDATING :
> https://svnweb.freebsd.org/base?view=revision&revision=336844
> 
>  Please let me know if this isn't the problem so I can fix quickly.

Yes, seems *very* likely. Unfortunately I do not have a build enviroment
ready, will try to set up.