8148 ddr3 clock rises from 400mhz to 800MHz

Jim,

Check in your u-boot code for the following macro declarations for dm814x. You'll be able to change the clock by using/changing appropriate macros.

#define DDR_N  19
#define DDR_M  (pg_val_ti814x(666, 800))
#define DDR_M2  2
#define DDR_CLKCTRL 0x801

hi Renjith

i can see the macro declarations in the ti-ezsdk_dm814x-evm_5_05_01_04/board-support/u-boot-2010.06-psp04.04.00.01/arch/arm/include/asm/arch-ti81xx/clocks_ti814x.h file .

but i do not know how change them to rise ddr3 clock to 800MHz from 400MHz ?

can you tell me in detail ,please ?

thank you for any help

Jim,

Try to increase the DDR_M multiplier value