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

[Wolfgang Denk]

In message <4795D957.1070305 at schweigstill.de> you wrote:
> 
> fw_getenv works fine for userspace programs. But I find it quite usefull
> to forward U-Boot configuration parameters to Linux kernel space via
> ATAGs, especially regarding different hardware versions and vice versa.
> Accessing the data which has been provided by ATAGs can be very fast
> because the ATAG data can be copied to global structures which can be
> accessed by the kernel and also be kernel modules. Typical applications
> are information about slightly different hardware versions, like GPIO
> mapping or polarity.

I agree that this may make sense on ARM systems - to me it would also
make sense to pass the MAC address as an ATAG. The  problem  is  that
you  will  probably  run  into problems if youy try pushing such code
into the mainline kernel. RMK will likely block it.

Best regards,

Wolfgang Denk

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