[PATCH] ARM: cache-l2x0: add resume entry for l2 in secure mode

[Russell King - ARM Linux]

On Wed, Sep 21, 2011 at 03:49:23PM +0800, Barry Song wrote:
> 2011/9/21 Russell King - ARM Linux <linux at arm.linux.org.uk>:
> > On Wed, Sep 21, 2011 at 01:53:37PM +0800, Barry Song wrote:
> >> yes. imx6q actually needs to enable l2 earlier than cpu_resume(and mmu
> >> resume). so how about letting outer_resume support both phy and virt
> >> address restore?
> >
> > You can't call C functions in the kernel before the MMU is enabled.
> 
> well. a direct call will fall into virtual address. then we need to
> transfer it to a phy address before calling it.

No.  I say again, you can't call C functions in the kernel before the
MMU is enabled.

C functions have literal tables that contain absolute virtual addresses
of variables and such like.  Without the MMU enabled, those addresses
are meaningless and won't point at the right place.