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[Yocto] Questions about imx_header

Question asked by charles huang on Dec 4, 2014
Latest reply on Dec 8, 2014 by Yuri Muhin

Hi All,

 

I'm investigating the difference between u-boot.bin & u-boot.imx, and try to find a way to insert some private information in u-boot.imx.

 

First, I find the reserved1 & reserved2 fields of flash_header_v2_t are both 0x00000000 in my u-boot.imx, and even after I modified the values, it still can boot successfully.
So, is it possible to put my own information here? Will Boot ROM use these two fields when booting?
BTW, my BSP version is fsl-yocto-3.10.17_1.0.0.
  
Second, I would like to know when and who will load DCD_v2_t header? Boot ROM or U-boot?
Furthermore, because the DCD table and plugin code are union in the imx header, how do we use DRAM when plug-in code is available? or the truth is DRAM is not available when we have plug-in code?

 

Thanks,
Daniel

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