2011/8/31 Barry Song [off-list ref]:

2011/8/30 Shawn Guo [off-list ref]:

quoted

On Tue, Aug 30, 2011 at 10:08:59PM +0800, Barry Song wrote:

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2011/8/30 Shawn Guo [off-list ref]:

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If ARM core gets powered off during suspend, L2 cache controller
has to be reinitialized by resume procedure.

The patch removes __init annotation from a few initialization
functions to make the reinitialization possible. ?For example,
platform resume function can call l2x0_of_init() to get L2 cache
back to work.

i think it is good. and i have sent a similar patch before:

http://www.spinics.net/lists/arm-kernel/msg137372.html
[PATCH v2 3/4] ARM: L2X0: move l2x0_init out of .init section

Since prima2 supports DT, you may also want to call l2x0_of_init()
instead of l2x0_init(). ?l2x0_of_init() will parse configuration from
DT and sets up tag RAM control for you.

i know that. and rob's patch did some suppport to prima2 and we were
in the loop of that patch and i have acked it if you read the mail.
i sent the patch againest the Linus's tree.

you might find two earlier threads about l2x0 re-init as well:

Colin Cross:
[PATCH] ARM: mm: cache-l2x0: Add support for re-enabling l2x0

Barry Song:
[RFC] ARM: l2x0: suspend/resume entries

let's wait for some feedback from Russell.

quoted

--
Regards,
Shawn

-barry