topic mx6ul ddr clock change? in i.MX Processors

mx6ul ddr clock change?

mkjasia — Thu, 04 May 2023 10:08:41 GMT

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 — Mon, 08 May 2023 10:21:47 GMT

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.

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

Thanks & Regards,

Sanket Parekh