Change Hikey LPDDR3 clock rate

Products Support HiKey
#1

Hi,
I want to change LPDDR3 clock on Hikey board.
Could someone please point out which file the memory clock is defined/programmed? dts or hard coded? and how?

Thanks for help.

#2

DDR speed is configured by the ATF

It is not recommended that you modify these settings (800MHz is the maximum clock rate of the DDR controller).

In any case, you might want to check this commit:
https://github.com/96boards/arm-trusted-firmware/commit/d9a2e180801391b3d33c33580910ce7df4817565

#3

Hi,

Does DB410c use the same manner to change the LPDDR3’s clock?
Or it is different from HiKey?

Thanks in advance.