[PATCH v1] arm: add call to cleanup_before_linux for go command

[Tom Rini]

On Wed, Apr 30, 2025 at 11:29:04AM -0500, Bryan Brattlof wrote:
> On April 30, 2025 thus sayeth Anshul Dalal:
> > As discussed here[1], the go command causes undefined behavior when used
> > for running custom OSes since the icache might hold outdated data. OSes
> > usually also expect the MMU to be disabled upon execution.
> > 
> > Therefore this patch adds a call to cleanup_before_linux before we jump
> > to the loaded program/os which disables both the caches and the MMU.
> > This makes the go command's behavior consistent with riscv platforms.
> > 
> 
> I know quite a few other OSes are beginning to use U-Boot (QNX, 
> GreenHills or all the other RTOSes) each with their own requirements 
> from the bootloader. I'm curious if we should make boot* a little more 
> generic rather than abuse the 'go' command.

Well, that's what bootelf is for :)

-- 
Tom
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