u-boot plugin.s details

[gopinathsriniva]

Hello Everyone,

 I am in the process of porting u-boot for my custom IMX7 board. I am following this document for migrating the u-boot from IMX7 sabresd board. Also I have generated .cfg file using DDR stress testing tool. Now I came across  this assemble file board/freescale/mx7dsabresd//plugin.S in the u-boot source code. Can anyone explain the purpose of this code file? Is this file needs to be ported based on my custom board? Because I can see code lines like "imx7d_ddr_freq_setting". Will this effect my board bring up in my custom board? Because I am using different ddr configurations.

Your suggestion will be much appreciated.  

Cheers,

Gopinath S

[igorpadykov · Accepted solution]

Hi Gopinath

in general plugin file does not needs to be ported,

plugin method is some extension to dcd header, allowing more flexibility,

please check sect.6.6.8 Plugin Image i.MX7D Reference Manual

http://cache.nxp.com/files/32bit/doc/ref_manual/IMX7DRM.pdf

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

[gopinathsriniva]

Thank you for quick reply.