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Compiler/AM6548: Uboot DDR Speed

Part Number: AM6548

Tool/software: TI C/C++ Compiler

If I want to change the DDR speed from 1600 MHZ to 1200MHZ. I will change the arch/arm/dts/k3-am654-base-board-ddr4-1600MTs.dtsi file

#define DDR_PLL_FREQUENCY 400000000 I will change this parameter to 300000000. Do I need to change any other macro in the dts file.

Thanks,

Sarfaraz