Bootargs from U-Boot for NIOS2

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originally posted by cypher@Nov 1 2006, 05:53 AM

i had a nios2 based custom board running uclinux kernel v2.6.16. this board also uses u-boot as it's boot loader and i'm trying to get the "bootargs" within u-boot passed down to the kernel.

does anyone have any pointers, patch or suggestions?

regards

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19057)

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Please look for "command_line" in arch/nios2nommu/kernel/setup.c .

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originally posted by hippo@Oct 31 2006, 10:22 PM

please look for "command_line" in arch/nios2nommu/kernel/setup.c .

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Hippo,

The code I see there uses the compiled in command line. I want to be able to pass in a command line from U-Boot using the bootargs environment variable. In the version of the setup.c I have, there is some code to read this command line information directly from flash, but it has been commented out.

Any other thoughts?

Regards

Patches added.

Please check DasUBoot and UclinuxDist on nios wiki .

I didn&#39;t try out, yet.

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originally posted by hippo@Nov 2 2006, 01:56 AM

patches added.

please check dasuboot and uclinuxdist on nios wiki .

i didn&#39;t try out, yet.

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19087)

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Hippo,

Thank you very much. I was about half way through very similar changes, I was getting stumbled up with the SP movement. I very much appreciate your work.

Thanks again..

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originally posted by cypher+nov 3 2006, 04:32 am--><div class='quotetop'>quote (cypher @ nov 3 2006, 04:32 am)</div>

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<!--quotebegin-hippo@Nov 2 2006, 01:56 AM

patches added.

please check dasuboot and uclinuxdist on nios wiki .

i didn&#39;t try out, yet.

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19087)

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Hippo,

Thank you very much. I was about half way through very similar changes, I was getting stumbled up with the SP movement. I very much appreciate your work.

Thanks again..

<div align='right'><{post_snapback}> (index.php?act=findpost&pid=19113)</div>

[/b]

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update again patch ver 12, relocate stack of zimage to 64K above _end instead of at the top of sdram.

now the u-boot,zimage and vmlinux should not cluster each other.