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Date:      Fri, 25 Sep 2020 07:34:18 +0100
From:      tech-lists <tech-lists@zyxst.net>
To:        freebsd-arm@freebsd.org
Subject:   Re: head -r365677 and later do not have the xhci related DMA problem fixed
Message-ID:  <20200925063418.GC54660@bastion.zyxst.net>
In-Reply-To: <04531BA7-F7A6-498B-BB8E-D3AAA53E15E3@yahoo.com>
References:  <5A60B29E-0D24-480C-807D-4A5E92D9C92A.ref@yahoo.com> <5A60B29E-0D24-480C-807D-4A5E92D9C92A@yahoo.com> <CCC44A9E-68C0-4EEF-AA68-AFA2F1F93ADA@googlemail.com> <JTSsaCfyfQICpQuYOx_aY-35TQTxCtQbI3L_t1o70kdtk-MZrrJ06WuluBwhYS5BQ58Apdet1XTP3u79WZYGUj8L2BjY_owAkoVLMN8IXVU=@protonmail.com> <231B8A1B-7F61-4868-B9E6-F8DD824079CA@yahoo.com> <39346C6E-CF29-42E8-BCAB-B04E73F909F7@googlemail.com> <04531BA7-F7A6-498B-BB8E-D3AAA53E15E3@yahoo.com>

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Hi,

On Thu, Sep 24, 2020 at 05:53:06PM -0700, Mark Millard via freebsd-arm wrot=
e:

>So far I'm unable to figure out how to have a u-boot environment
>that boots the RPi4B's: figuring out what needs to be different
>than the rather modern raspberry pi files that I have in place.
>Also: fully modern eeprom content. As stands I've not been using
>a microsd card at all: it uses the msdos file system from the
>USB3 SSD.

Mine *will* boot, even after the eeprom upgrade. What it won't do (what was
always the case) is boot after I modify config.txt in any way at all.

I used these files, and the last time I made a working image I used
FreeBSD-13.0-CURRENT-arm64-aarch64-RPI3-20200917-17bd0444d91.img=20

mount the msdos partition,

replace u-boot.bin, fixup4.dat, start4.elf

wget https://sourceforge.net/projects/rpi4-8gbram-boot-fbsdonly/files/u-boo=
t.bin/download
-O u-boot.bin

fetch https://github.com/raspberrypi/firmware/raw/1.20200717/boot/fixup4.dat
fetch https://github.com/raspberrypi/firmware/raw/1.20200717/boot/start4.elf

unmount the partition

it should boot.

>It hangs with the rainbow screen up and having reported starting
>start4.elf in every attempt that I've made. As near as I can
>tell the overall behavior matches what tech-lists at zyxst.net
>has been reporting.

I am using the same image (subsequently rebuilt world, kernel so it's at
r365898 now), I took out this sdcard, wrote raspios-64bit to another one,=
=20
updated the eeprom, put back the freebsd card. It boots, just can't touch=
=20
config.txt or or I get the raspberry problem (happened before the eeprom up=
grade),=20
if I try the different start4.elf & fixup4.dat, I get the rainbow screen.

--=20
J.

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