[PATCH 6/6] arm/imx6q: add suspend/resume support

[Russell King - ARM Linux]

On Thu, Sep 08, 2011 at 02:23:02PM +0800, Shawn Guo wrote:
> Yes, if you lose L2 power in suspend, it's the easiest way for you to
> resume L2.
> 
> For my case which retains L2, I actually do not want to call this
> function which will invalidate L2.  But since we still have problem
> to use rmk's generic suspend/resume updates (ARM: pm: add L2 cache
> cleaning for suspend), we have to flush the entire L2 on imx6q for now.

OMAP44xx has the same problem but they re-initialize L2 on resume in
their pre-cpu_resume() assembly code.