[PATCH 1/3] ARM: cache-l2x0: make the reinitialization possible

[Barry Song]

2011/8/31 Barry Song <21cnbao at gmail.com>:
> 2011/8/30 Shawn Guo <shawn.guo at freescale.com>:
>> On Tue, Aug 30, 2011 at 10:08:59PM +0800, Barry Song wrote:
>>> 2011/8/30 Shawn Guo <shawn.guo at linaro.org>:
>>> > 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.

>
>>
>> --
>> Regards,
>> Shawn
-barry