[U-Boot-Users] Passing Linux kernel arguments
Wolfgang Denk
wd at denx.de
Fri Nov 14 12:27:44 CET 2003
In message <37FB7AA6F5F9814FB634A7BF4C35A6F501213C76 at ESEALNT442.al.sw.ericsson.se> you wrote:
>
> When passing Kernel arguments, is it necassary to populate the bootargs environment variable with
> the information found by using command ,
No, in general it is not necessary. Bootargs is used for boot
arguments only. [Well, sometimes it _is_ - like when passing
something like "console=ttyS0,$(baudrate)" or when using special
features like protected RAM and passing "mem=$(mem)k" etc.]
> 5.9.1.1. bdinfo - print Board Info structure
...
> If I want these to be passed to the Linux kernel?
This is somewhat architecture dependend, but in general this
information already gets passed top the Linux kernel - for example on
PowerPC using the bd_info structure, on ARM using approproiate tags,
etc.
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
I know engineers. They love to change things. - Dr. McCoy
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