[U-Boot] arm: mxs: No arch specific invalidate_icache_all available!

[Michael Heimpold]

Hi,

Am Montag, 24. April 2017, 20:12:55 CEST schrieb Fabio Estevam:
> Hi Stefan,
> 
> On Mon, Apr 24, 2017 at 8:03 AM, Stefan Wahren <stefan.wahren at i2se.com> 
wrote:
> > Hi,
> > 
> > i tried to port our Duckbill (based on NXP i.MX28 SoC) to U-Boot
> > v2017.03 [1]. The startup works fine, except of this warning:
> > 
> > No arch specific invalidate_icache_all available!
> > 
> > I didn't found a MXS specific implementation of invalidate_icache_all().
> > 
> > Did i miss something? Shouldn't be the other MXS boards also affected?
> > 
> > [1] - https://github.com/lategoodbye/u-boot/tree/v2017.03-duckbill
> 
> Looks like ARM926 needs a invalidate_icache_all available() implementation.
> 

we could move the implementation in arch/arm/mach-at91/arm926ejs/cache.c
to a more generic place and re-use it.

However, the warning is only generated because lib/efi_loader/efi_runtime.c
calls invalidate_icache_all from efi_runtime_relocate. This is because
CONFIG_EFI_LOADER is set.

I don't know if somebody using the EFI stuff for other MXS-based boards.
For our Duckbill, I would simply force
# CONFIG_EFI_LOADER is not set
via config.

Regards,
Michael