how to modify the DDR frequncy?

[STChen2022]

I need to modify the DDR frequncy from 528 to 500mhz but I am failed. Can any one to show me how to make it up?

1. modify the UBOOT cfg and

2. modify the kernel parts

Please more detail for the dts parts. If there are source code capture is perfect.

Thank you so much for your help.

[Yuri]

@STChen2022 
Hello,

   please use working points, defined for Dynamic Bus Frequency Linux feature.
The working points were tested. Please look at section 2.5.4 (Dynamic Bus Frequency)
of i.MX Linux Reference Manual for more details.

  https://www.nxp.com/docs/en/reference-manual/IMX_REFERENCE_MANUAL.pdf

  Also, I've sent You some codes directly.

Regards,
Yuri.