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DDR Hardware Calibration in flash_header.S

Question asked by Alex He on Jul 9, 2014
Latest reply on Oct 10, 2014 by Fabio Estevam


I was wondering if there are any samples of running the hardware ZQ calibration, write leveling, DQS gating\read\write within flash_header.S.


I've modified the DCD table with new calibration values after running the MX6 DDR Stress Test Tool. However, these values only work on one board and moving onto another board, I run into memory issues again. Therefore, I want to implement running calibration on every boot for each individual board. My understanding is that it should be done flash_header.S, but I'm not entirely sure how to go about doing it. Any help would be great.