[U-Boot] RFC: Alternative boot_jump_linux() function

[Peter Robinson]

Hi,

> I'm currently working on snapdragon bootloader support and in the
> particular case where U-boot is running in Aarch32 and the kernel is
> Aarch64 the specific implementation is to jump to Linux through SCM
> call.

I seem to remember the Allwinner A64 Pine64 starts in 32 bit mode and
switches too so you might get some ideas from there or the maintainer
might have some suggestions.

> I try to find the best possible way to provide an alternative boot function.
> Adding #ifdef ARCH_SNAPDRAGON will just be too specific in
> arm/lib/bootm.c in my opinion and I'm thinking of introducing kind of
> a callback function in gd. that if exists will jump there instead of
> executing boot_jump_linux().
>
> What do you think ?
>
> Waiting for your thoughts on the subject.
>
> Warm regards,
> Ramon.
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