[U-Boot-Users] U-Boot version string in kernel/userspace

[Wolfgang Denk]

In message <479515A4.3080103 at freescale.com> you wrote:
>
> > Waht's the best way to get the U-Boot version string (the one returned 
> > by U-Boot cmd "version") from userspace?
> > Arg passed to the kernel?
> > U-Boot env variables and use fw_getenv?
> 
> U-Boot disappears when the kernel loads, so the only cross-platform option is to 
> pass a command-line parameter to the kernel.  Such a change would probably not 
> be accepted into the mainline, however.

First, reading the kernel command line can be done in user space - no
need to change the kernel to do that.

Second, using the  command  line  is  not  the  only  way  to  access
envrionment  data.  Assuming  the  environment is stored in flash (or
similar), you can of course read (and write) it from Linux, too.

Best regards,

Wolfgang Denk

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