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1GB ddr3l twin die only work with 800MB

Question asked by Jochen Stehle on Oct 10, 2019
Latest reply on Oct 22, 2019 by Yuri Muhin

Hello,

 

we use an i.mx6ul on our custom board. till now we used a 512MB micron chip. now we changed to the MT41K512M16VRN-107 IT:P. It is a twin die chip with only one CS. But wenn u-boot calculate the memory automaticly it shows correct 1GB but the kernel didnt start. Kernel hangs after:

Starting kernel ...

Uncompressing ........ done, booting the kernel.

When we set the memory fix to 800MB it worked fine.

 

Where is here the problem?

We think something in uboot isnt correct? 

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