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Who pass the kernel boot args?

Altera_Forum
Honored Contributor II
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hello, 

I found that the uClinux configuration chose pass command line rather than use default command line, but my confuse is: 

Who pass the boot args to the kernel, you know we just download the image with nios2-download rather than u-boot, 

I find it that the dts file have a boot args, but it does not tell the kernel where the initrd file is, even more, with the sopc-create-heads-file method, I've no idea where the boot args come from, does the kernel do the choice? 

:( 

regards
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