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Re: missing /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq on rasbperry pi 3b



Hi,

On 2019.09.08 16:39, basti wrote:
can anybody confirm this
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=939284 bug?

I can confirm this too, on a Raspberry Pi 3 Model B+, with a fully updated Debian 10:

root@pi3:~# cat /etc/debian_version
10.1
root@pi3:~# uname -a
Linux pi3 4.19.0-6-arm64 #1 SMP Debian 4.19.67-2 (2019-08-28) aarch64 GNU/Linux
root@pi3:~# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.19.0-6-arm64 root=UUID=########-####-####-####-############ ro console=ttyS0,115200 quiet
root@pi3:~# ls -alF /sys/devices/system/cpu/cpu0/
total 0
drwxr-xr-x  6 root root    0 Sep  9 10:48 ./
drwxr-xr-x 10 root root    0 Sep  3 19:45 ../
-rw-r--r--  1 root root 4096 Sep  9 10:48 cpu_capacity
-r--------  1 root root 4096 Sep  9 10:48 crash_notes
-r--------  1 root root 4096 Sep  9 10:48 crash_notes_size
drwxr-xr-x  2 root root    0 Sep  9 10:48 hotplug/
lrwxrwxrwx  1 root root    0 Sep  9 10:48 node0 -> ../../node/node0/
lrwxrwxrwx 1 root root 0 Sep 9 10:48 of_node -> '../../../../firmware/devicetree/base/cpus/cpu@0'/
-rw-r--r--  1 root root 4096 Sep  9 10:48 online
drwxr-xr-x  2 root root    0 Sep  9 10:48 power/
drwxr-xr-x  3 root root    0 Sep  9 10:48 regs/
lrwxrwxrwx  1 root root    0 Sep  3 19:45 subsystem -> ../../../../bus/cpu/
drwxr-xr-x  2 root root    0 Sep  9 10:48 topology/
-rw-r--r--  1 root root 4096 Sep  3 19:45 uevent

kernel  4.19.0-6-arm64 does not solve this problem.

Indeed.

For the record (since it allows me to blow my own trumpet), Debian was installed on this Raspberry Pi using the *full* UEFI firmware we now have for this platform, by following this guide:
https://pete.akeo.ie/2019/07/installing-debian-arm64-on-raspberry-pi.html

Regards,

/Pete


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