RPi4B: emmc2bus dma-range handling does not track the boot-time-FDT (u-boot based booting)

[Mark Millard]

On 2020-Oct-9, at 15:19, Klaus Cucinauomo <maciphone2 at googlemail.com> wrote:

> Am 09.10.2020 um 23:25 schrieb Mark Millard <marklmi at yahoo.com>:
>> 
>> 
>> The Raspberry Pi Imager is a way to install RaspiOS to
>> media from Windows, macOS, ubuntu, or RaspiOS. It does
>> not install Windows, macOS, or ubuntu but RaspiOS (an
>> abbreviation of "Raspberry Pi OS“...
>> ….These are not via the rpi organization's web site and www.raspberrypi.org does not provide the ubuntu image(s)…..
> 
> Sorry Mark, but what you say is wrong ,
> 
> Open the RaspberryPi-imager tool ( I’m a Mac-user, so got the Mac-version) ,
> Goto -> 
> ChooseOS-> Ubuntu-> Ubuntu 20.04.1 LTS (RPI3/4)/64-bit server OS for arm64 architectures…

Ahh. I see. Sorry for the noise. I did not get that you had selected
ubuntu from inside the RaspberryPi-imager User Interface. Another
(implicit) bad guess at context on my part.

In this case, my comments about the .dtb files not being RaspiOS based
and not matching the ones that FreeBSD is based on using for RPI3
builds applies as far as I know: it is the same material as available
from the ubuntu web site for installing 2020.04.1 . The notes about
the vintages of start4.elf and fixup4.dat predating 2020-Aug-20 by a
notable amount also applies.

It will be interesting to see if 2020.10 uses newer start*.elf and
fixup*.dat materials when it is released later this month --as well
what vintage of dts materials it ends up being based on.

> Let it write to SD or USB… then mount the ubuntu-msdos-partition and copy over the whole crap 
> to your FreeBSD-USB-boot-media for the 4GB-model ….
> enjoy to see FreeBSD booting from USB without SD_card …
> Perhaps you will stop enjoying the greatful boot-process when it will hang short before it initializes RobOCrow`s pcie-driver  :-) Ha Ha
> but it boots 2020.10 and that’s the first step before fixing the hang...



===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)