I have several Raspberry Pi 2 Model B and Raspberry Pi 3 Model B devices running the Raspberry Pi OS Debian 11 (bullseye) 32-bit OS.
In the "/boot/config.txt" configuration file, I have the line
to overclock the SD card speed to 100000000 Hz.
When firing the command "sudo grep clock /sys/kernel/debug/mmc0/ios" I always obtained the following output:
confirming that the SD cards used support this kind of speed.
After an OS update, which included a kernel update, I do no longer get this speed.
When firing the command "sudo grep clock /sys/kernel/debug/mmc0/ios" I am obtaining now the following output:
Not sure what has happened, and why the actual clock speed has been reduced with the recent OS updates.
I have amended the "/boot/config.txt" configuration file with the line entry
that I have found as suggestion in this forum. Though, the same result and output as above when firing the command "sudo grep clock /sys/kernel/debug/mmc0/ios".
Is there any other setup or mechanism to overclock the SD card speed to 100000000 Hz?
In the "/boot/config.txt" configuration file, I have the line
Code:
dtparam=sd_overclock=100When firing the command "sudo grep clock /sys/kernel/debug/mmc0/ios" I always obtained the following output:
Code:
clock: 50000000 Hzactual clock: 100000000 HzAfter an OS update, which included a kernel update, I do no longer get this speed.
When firing the command "sudo grep clock /sys/kernel/debug/mmc0/ios" I am obtaining now the following output:
Code:
clock: 50000000 Hzactual clock: 83333333 HzI have amended the "/boot/config.txt" configuration file with the line entry
Code:
dtoverlay=sdhost,overclock_50=100Is there any other setup or mechanism to overclock the SD card speed to 100000000 Hz?
Statistics: Posted by carriba — Wed May 08, 2024 7:52 am