mx6ul ddr clock change?

[mkjasia]

We used mx6ul 14x14_evk board and DDR3L.

DDR3L clock operates at 400MHZ by setting mx6ul_14x14_evk_defconfig in u-boot.

We want to change the DDR3L clock to 200MHz.

Please let me know where to modify to change the DDR3L clock.

/*
I am making a custom board and testing it, but the DDR3L clock does not operate at 400 MHz.

Using the DDR stress test provided by NXP, it operates with a clock of 300 MHz.
*/

Thanks.

[Sanket_Parekh · Accepted solution]

Hi @mkjasia,

I hope you are doing well

My apology for the delayed response.

Please let me know where to modify to change the DDR3L clock.

=> One can configure the DDR frequency using the RPA file while calibration.

Please look at section 2.1.2 System information from the below document.

Freescale i.MX6 DRAM Port Application Guide-DDR3

For more information related to DDR configuration, kindly refer to the below link.

i.MX 6/7 Series DDR Tool Release

Thanks & Regards,

Sanket Parekh