Dear Shawn Guo,
In message <20110226173040.gd2...@s2100-06.ap.freescale.net> you wrote:
> I'm still a little bit new to dt. I thought the bootargs in chosen
> node will always apply when dt is enabled. It just took me some time
> to figure out that u-boot 'bootargs' env will anyway overwrite the
> one from chosen.
This is not quite correct. U-Boot will not always overwrite the
settings from "chosen", but only if you provide any "better" settings
by defining the "bootargs" environment variable.
> str = getenv("bootargs");
> if (str != NULL) {
...
> The 'force' is hard-coded as 1, so it always overwrites. Knowing
> that may save your some time, if you are green hands as me ;)
If you don't want to use the U-Boot settings, then just don't define
any. If you bother to define such data, it is assumed that you
actually want to see it used.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
If you're not part of the solution, then you're part of the precipi-
tate.
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