How to change EMC frequency in r36.3

Robotics & Edge Computing Jetson & Embedded Systems Jetson Orin NX
1

I want to change the EMC frequency in Jetson Linux r36.3 with follow steps, but it does not work.

sudo sh -c "echo 1 > /sys/kernel/debug/bpmp/debug/clk/emc/mrq_rate_locked"
sudo sh -c "echo 1 > /sys/kernel/debug/bpmp/debug/clk/emc/state"
sudo sh -c "echo 665600000 > /sys/kernel/debug/bpmp/debug/clk/emc/rate"

I checked and was able to change the frequency in r35.5.

Has something changed in r36.x?

2

echo 1 > /sys/kernel/debug/bpmp/debug/clk/emc/mrq_rate_locked
echo 1 > /sys/kernel/debug/bpmp/debug/bwmgr/bwmgr_halt

Try to do this before echo 665600000 > /sys/kernel/debug/bpmp/debug/clk/emc/rate

3

Thank you for your quick reply.

It worked fine. Thank you!

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4

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