Hello,
As i understood, all the configuration for the DDR is in the configuration file (imximagecfg). I saw the configuration in this file. It has register configuration for the CCM clock, IOMUX SW CTL PAD/GRP and MMCD controller register.
Yet not able to understand, where is the IOMUX MUX software control register configurations ? Whrere will get the related source file in the u-boot? I am using imx6ul controller.
DDR interface with imx6ul controller is dedicated, Is it not necessary to make such pin configuration for the DDR interface?
Regards,
Surendra
Hi Surendra
in uboot it is uboot/board/freescale/mx6ul_14x14_evk/imximage.cfg
uboot-imx.git - Freescale i.MX u-boot Tree
>DDR interface with imx6ul controller is dedicated, Is it not necessary to
>make such pin configuration for the DDR interface?
right
Best regards
igor
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Thanks igor !!!. This is what i exactly looking for.
I am using the MT41K256M16TW-107AIT:P DDR3-L for our custom board. In the imximage.cfg , the configuration also provided for same part number.
I have seen the DDR script aid, which generate the configuration value, https://community.nxp.com/docs/DOC-329899
But in this script aid excle sheet, Memory Type is given upto DDR3-1600, but -107AIT part has speed 1866. This is not listed in the same excle.
Is it fine, in the same excle sheet memorytype kept as is, i.e DDR3-1600 and change the parameter with specify for the -107 AIT in data sheet like tRCD,tRC,tRAS.
In the imximage.cfg file, i saw the delta between part -125 and -107 is calibration register.( i know this values should come from the stress tool which would be fine ) .
I just want to ask, if you have an experience with MT41K256M16TW-107AIT DDR3 part,except calibration values , if i used all values as is from the cfg file for the custom board. Will it work ?
Thanks for your great Support igor !!!
Thanks& Regards,
Surendra
Hi Surendra
yes it is possible to sellect 1600 grade for 1866 grade design.
Best regards
igor