Some Issues about DDR on MX6DL

[tony_l_cai]

Dear All，

     In U-boot 2014.04, we find the DDR cfg has a macro CONFIG_USE_PLUGIN, but I dont know how to use it. could you give me more info ?

     and I also want to know how to user ROM controller ,could you give some examples? The content about the MX6DL reference manual is so obscure that I cannot comprehend it.

3Q~

[igorpadykov]

Hi tony

plugin is described in sect.8.7 Plugin Image

i.MX6SDL Reference Manual (rev.2  5/2015)

http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6SDLRM.pdf

One can consider it as addition to dcd header, as after plugin execution

boot flow returns to ROM. Plugin has not restrictions as dcd header has:

dcd max size 1768 bytes and restricted number accessed peripherals. Also one can

use conditional branch execution.

For boot examples one can look at attached Linux Guide sect.4.5 How to boot the i.MX boards.

Best regards

igor

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