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i.mx28 memory autosizing ?

Question asked by SJA on Jan 6, 2015
Latest reply on Jul 8, 2015 by Gianluca Renzi

What is the procedure for DRAM auto-sizing ?


We want to have a single bootstream that supports 64MB, 128MB, 256MB.

So we need to have different settings for DRAM_REG[29] ....


Can I just change DRAM_REG[29] on the fly ??


So I set it for 256MB ... look for pattern wraparound at 64MB and 128MB and

then set DRAM_REG[29] to 64MB setting or 128MB settings or leave it at 256MB

depending on wraparound results ....


Or do I have to do something to shutdown and restart the DRAM controller in order to

change DRAM_REG[29] ?