About enable L2 cache in Linux kernel

Wed Apr 27 16:52:16 EDT 2011

On Fri, Apr 15, 2011 at 11:37:28AM +0800, Jason Liu wrote:
> I notice that if bootloader does not enable L2, after linux boot up,
> the L2 cached will keep disabled.
> Do you know why Linux kernel does not do L2 cache enable operation at
> start up on cortex_a8?

No idea.

We do have code which enables a PL2x0 cache controller if the platform
calls the relevant function.  I don't know off-hand what's fitted inside
your SoC to comment further though.