[U-Boot] Antw: Re: U-Boot doesn't silent the output

[Wolfgang Denk]

Dear Frank,

In message <53281FB1020000460004BF46 at gwia2.rz.hs-offenburg.de> you wrote:
> 
> >Second, CONFIG_BOOTCOMMAND defines exactly one environment variable,
> >"bootcmd".  As documented, the values of this variable is apssed to
> >the Linux kernel as boot argument - and this is the only function of
> >this variable.  You can add random things to it, even U-Boot commands,
> >but this will never have any effect on the operation of U-Boot - it
> >might only consfuse the Linux kernel.
> 
> Well the variables I pass to the kernel command line are stored not in the CONFIG_BOOTCOMMAND, but in the CONFIG_BOOTARGS. When checking the kernel command line during boot, it is the same like the one defined in the BOOTARGS. 

oops. Sorry, of course you are right - I confused this.  Guess I need
more tea...

> In that mentioned header file, with what I started U-Boot, there are commands in the CONFIG_BOOTCOMMAND like "nand write, tftp, setenv ipaddr" etc. - since those are the commands from the U-Boot menu on target, I thought enqueuing the BOOTCOMMAND with "
> silent", or "verify" would work too, though "verify" worked this way (a recognizable boot time was decreased). 

Again - CONFIG_BOOTCOMMAND affects only the default environment, it
does not change the setting of the "bootcmd" variable in your normal
environment.

> >Also, are you sure early debug output is disabled in your kernel
> >configuration?  Otherwise this will get printed even before the Linux
> >kernel's console driver has been started.
> 
> If you mean the "early printk" then yes, otherwise I need more information what is meant by early debug output.

Yes.

Best regards,

Wolfgang Denk

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