Hi,
I have a question that can i.mx8mm runing in 800MHz@A53 core ?
Sometimes, we need to run lower frequency of A53 core to decrease power consumption.
Thanks very much.
Hi @jimmyli,
I hope you are doing well.
One needs to add opp table points in imx8mm.dtsi for lower frequency support.
Please refer to a53_opp_table node in /arch/arm64/boot/dts/freescale/imx8mm.dtsi
One can refer to the patch mentioned in https://community.nxp.com/t5/i-MX-Processors/Lower-CPU-frequency-on-imx8mm/td-p/955456
Please also add the PLL rate for lower frequency in /drivers/clk/imx/clk-pll14xx.c
I hope it helps!
Thanks & Regards,
Ritesh M Patel
Hi Ritech,
Thanks for your replying.
I will try again.