[PATCH] armv8: cache_v8: Fix pgtables setup when MMU is already enabled

[Tom Rini]

On Wed, Sep 14, 2022 at 01:37:46PM +0200, Pali Rohár wrote:

> When MMU is already enabled then dcache_enable() does not call mmu_setup()
> and so setup_all_pgtables() is also never called.
> 
> In this situation when some driver calls mmu_set_region_dcache_behaviour()
> function then U-Boot crashes with error message:
> 
>     Emergency page table not setup.
> 
> Fix this issue by explicitly calling setup_all_pgtables() in dcache_enable()
> function near condition for mmu_setup().
> 
> This change fixes chainloading U-Boot from U-Boot on Turris Mox board which
> uses mvneta ethernet driver which calls mmu_set_region_dcache_behaviour().
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>
> Reviewed-by: Marek Behún <kabel at kernel.org>
> Reviewed-by: Stefan Roese <sr at denx.de>

Applied to u-boot/master, thanks!

-- 
Tom
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