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

Barry Song 21cnbao at gmail.com
Wed Sep 21 03:49:23 EDT 2011


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.

>



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