RPI 400 not booting

This is for ARMv8 based devices

RPI 400 not booting

Postby baslking » Fri Feb 19, 2021 5:37 pm

I have tried both Arm7 and the ArchLinuxARM-rpi-4 and the ArchLinuxARM-rpi-aarch64 Arm8 installs on an RPI 400 all in one.
The Arm7 install never shows anything on the screen, just repeatedly power cycles. The Aarch64 flashed the message
Code: Select all
Bus xhci_probe failed error -110 no working controllers

on the screen in a loop. I managed to boot Aarch64 by replacing the kernel with the kitchen sink version from
https://github.com/raspberrypi/firmware but of course all /lib/modules don't work among other things and its not a viable way forward.
Are others having success with RPI 400?
I have a PI-Zero running ArchLinux and its super stable.
Posts: 2
Joined: Thu Feb 18, 2021 10:53 pm

Re: RPI 400 not booting

Postby baslking » Mon Mar 08, 2021 9:44 am

I can confirm that the Graysky testing version http://repo-ck.com/aarch64-test/ works straight out of the box including vc4-kms-v3d on my RPI 400.

It's not using the u-boot bootloader, and the SD block device to mount /boot defaults to mmcblk0 (zero) unlike the AArch64 standard version.

Thanks for that :)
Posts: 2
Joined: Thu Feb 18, 2021 10:53 pm

Re: RPI 400 not booting

Postby nizzo » Fri May 21, 2021 1:37 pm

I just tested the latest ArchlinuxARM images for Raspberry Pi 4 on the Raspberry Pi 400.
The rpi one works perfectly, including HDMI output.
The aarch64 one goes into bootloop as described by @baslking, however a coredump appears before rebooting.
If you need further help in troubleshooting this, let me know!
Posts: 1
Joined: Fri May 21, 2021 1:34 pm

Re: RPI 400 not booting

Postby lategoodbye » Thu Jun 10, 2021 5:15 pm

The mainline kernel (AFAIK used for aarch64) never supported RPI 400, until now (merge into linux-next). So the first official kernel supporting RPI 400 will be Linux 5.14.
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Joined: Sat Dec 29, 2018 1:24 am

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