Describe the bug
Boot process intermittantly hangs during (or just after) start.elf stage when Mediatek MT7921K (Wi-Fi 6E module) is connected
To reproduce
Insert MT7921K Wi-Fi module and power on or reboot system
Expected behaviour
start.elf process should complete and linux kernel should start booting
Actual behaviour
System hangs during (or just after) start.elf process (see log output below)
System
Which model of Raspberry Pi? e.g. Pi3B+, PiZeroW
CM4
Which OS and version (cat /etc/rpi-issue)?
Raspberry Pi reference 2022-12-19
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 9ecb50a577fa3772440cd37b7dbff5f327a6191f, wlanpi1
Which firmware version (vcgencmd version)?
Oct 26 2022 11:09:36
Copyright (c) 2012 Broadcom
version c72ad6b26ff40c91ef776b847436094ee63fabee (clean) (release) (start_db)
Which kernel version (uname -a)?
Linux wlanpi-627 5.19.17-v8-wlanpi+ #1 SMP PREEMPT Sun Dec 18 21:51:50 UTC 2022 aarch64 GNU/Linux
Logs
If applicable, add the relevant output from dmesg or similar.
This is where it hangs during the boot process
Describe the bug Boot process intermittantly hangs during (or just after) start.elf stage when Mediatek MT7921K (Wi-Fi 6E module) is connected
To reproduce Insert MT7921K Wi-Fi module and power on or reboot system
Expected behaviour start.elf process should complete and linux kernel should start booting
Actual behaviour System hangs during (or just after) start.elf process (see log output below)
System
Which model of Raspberry Pi? e.g. Pi3B+, PiZeroW CM4
Which OS and version (
cat /etc/rpi-issue
)? Raspberry Pi reference 2022-12-19 Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 9ecb50a577fa3772440cd37b7dbff5f327a6191f, wlanpi1Which firmware version (
vcgencmd version
)? Oct 26 2022 11:09:36 Copyright (c) 2012 Broadcom version c72ad6b26ff40c91ef776b847436094ee63fabee (clean) (release) (start_db)Which kernel version (
uname -a
)? Linux wlanpi-627 5.19.17-v8-wlanpi+ #1 SMP PREEMPT Sun Dec 18 21:51:50 UTC 2022 aarch64 GNU/LinuxLogs If applicable, add the relevant output from
dmesg
or similar. This is where it hangs during the boot process