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

[John Kennedy]

On Mon, Aug 06, 2018 at 05:54:19PM +0200, Per olof Ljungmark wrote:
> 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.

I just burned the FreeBSD-12.0-CURRENT-arm64-aarch64-RPI3-20180802-r337160.img
to an SD card and booted it up.

The framebuffer information for my system is different (screen resolution?
1024 x 904 I think).  After that, it clears the screen and goes into the
kernel boot output that gets captured into /var/log/messages.

The 20180802-r337160 /boot/loader.conf has a few new things in it:

	# Configure USB OTG; see usb_template(4).
	hw.usb.template=3
	umodem_load="YES"
	# Multiple console (serial+efi gop) enabled.
	boot_multicons="YES"
	boot_serial="YES"