[PATCH] arm: mach-k3: common: don't reconfigure background firewalls

[Kamlesh Gurudasani]

Manorit Chawdhry <m-chawdhry at ti.com> writes:

> K3 devices have some firewalls set up by ROM that we usually remove so
> that the development is easy in HS devices.
>
> While removing the firewalls disabling a background region before
> disabling the foreground regions keeps the firewall in a state where all
> the transactions will be blacklisted until all the regions are disabled.
> This causes a race for some other entity trying to access that memory
> region before all the firewalls are disabled and causes an exception.
>
> Since the background regions configured by ROM are in such a manner
> that they allow all transactions, don't touch the background regions at
> all.
>
> Signed-off-by: Manorit Chawdhry <m-chawdhry at ti.com>

Reviewed-by: Kamlesh Gurudasani <kamlesh at ti.com>