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Date:      Fri, 9 Oct 2020 15:56:52 -0700
From:      Mark Millard <marklmi@yahoo.com>
To:        Klaus Cucinauomo <maciphone2@googlemail.com>
Cc:        Robert Crowston <crowston@protonmail.com>, Kyle Evans <kevans@freebsd.org>, freebsd-arm <freebsd-arm@freebsd.org>
Subject:   Re: RPi4B: emmc2bus dma-range handling does not track the boot-time-FDT (u-boot based booting)
Message-ID:  <0EDAC217-E53F-4C06-81F4-35FF5550DEE8@yahoo.com>
In-Reply-To: <36A6B0E4-7578-4EFF-8095-9030DA36214B@yahoo.com>
References:  <D8BDF95A-D6A8-4E95-A0CE-D53068E8355B.ref@yahoo.com> <D8BDF95A-D6A8-4E95-A0CE-D53068E8355B@yahoo.com> <ABE16EA6-49F1-461F-9B8A-6DAA7ED6A18D@googlemail.com> <98BC985D-EAAB-4AFB-AA8F-7391A45C4EBF@yahoo.com> <91324D35-B66A-4674-AE37-45F3DDB736FD@yahoo.com> <2B3F0409-88F2-4EBD-9C39-37929F973C77@yahoo.com> <B3133D77-FA24-4F42-B529-D0B56F48E790@yahoo.com> <CCEEC0AD-B874-4753-AAA1-B3B5B302A30C@googlemail.com> <E82AE086-837C-4CEA-92D5-78A39412F964@yahoo.com> <803EF261-1407-4331-AC56-1D49E05F8382@googlemail.com> <2FAA304E-045B-4B10-AA14-1E869FB6FD00@yahoo.com> <ABEE9729-353C-473D-8670-271395A697C8@googlemail.com> <36A6B0E4-7578-4EFF-8095-9030DA36214B@yahoo.com>

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On 2020-Oct-9, at 15:48, Mark Millard <marklmi at yahoo.com> wrote:
>=20
> On 2020-Oct-9, at 15:19, Klaus Cucinauomo <maciphone2 at =
googlemail.com> wrote:
>=20
>> Am 09.10.2020 um 23:25 schrieb Mark Millard <marklmi@yahoo.com>:
>>>=20
>>>=20
>>> 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=E2=80=9C...
>>> =E2=80=A6.These are not via the rpi organization's web site and =
www.raspberrypi.org does not provide the ubuntu image(s)=E2=80=A6..
>>=20
>> Sorry Mark, but what you say is wrong ,
>>=20
>> Open the RaspberryPi-imager tool ( I=E2=80=99m a Mac-user, so got the =
Mac-version) ,
>> Goto ->=20
>> ChooseOS-> Ubuntu-> Ubuntu 20.04.1 LTS (RPI3/4)/64-bit server OS for =
arm64 architectures=E2=80=A6
>=20
> 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.
>=20
> 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.
>=20
> 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.
>=20
>> Let it write to SD or USB=E2=80=A6 then mount the =
ubuntu-msdos-partition and copy over the whole crap=20
>> to your FreeBSD-USB-boot-media for the 4GB-model =E2=80=A6.
>> enjoy to see FreeBSD booting from USB without SD_card =E2=80=A6
>> 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=E2=80=99s the first step before fixing =
the hang...

FYI for the u-boot vintage/variant involved for ubuntu:

# strings /boot/firmware/uboot_rpi_4.bin | grep 2020
gcc (Ubuntu 9.2.1-28ubuntu1) 9.2.1 20200203
02/11/2020
U-Boot 2019.07+dfsg-1ubuntu6 (Feb 11 2020 - 10:43:57 +0000)

=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)


=3D=3D=3D
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)




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