IMX6UL lpddr2 vs ddr3

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IMX6UL lpddr2 vs ddr3

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ricardoferreira
Contributor II

Hi,

Could anyone tell me if there is any specific configuration in the device tree for a memory LPDDR2 compared with DDR3. For example the device tree "imx6ul-14x14-evk.dtb" is for a board with DDR3. If I want to use LPDDR2 do I need to change something?

Regards

R

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Ricardo

seems not, as all memory type definitions are provided in uboot,

except probably max. frequency as "fsl,max_ddr_freq = <400000000>".

In linux AN5125 sect.Introduction to Device Trees describes that in

sect.4 Memory mapping and addressing

http://cache.nxp.com/files/32bit/doc/app_note/AN5125.pdf

Best regards

igor

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