linux-kernel - Re: [PATCH] at91 pm: Compilation fix for at91sam926x

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Date:	Fri, 10 Aug 2007 12:00:28 +0200
From:	"Michel Benoit" <murpme@...il.com>
To:	"Pierre Savary" <pierre.savary@...link.fr>
Cc:	"Marc Pignat" <marc.pignat@...s.ch>,
	"Hans-Jürgen Koch" <hjk@...utronix.de>,
	trivial@...nel.org, linux-kernel@...r.kernel.org,
	"Andy Herzig" <andrew.herzig@....com>, andrew@...people.com,
	linux-arm-kernel@...ts.arm.linux.org.uk
Subject: Re: [PATCH] at91 pm: Compilation fix for at91sam926x

Hi Pierre,

I'm also using power management on the at91sam9260.

> About SDRAm self refresh mode on at91sam926x, in fact AT91_SDRAMC_SRR
> doesn't exist but the new register is AT91_SDRAMC_LPR. So for instance, you
> can replace at91_sys_write(AT91_SDRAMC_SRR, 1) by
> at91_sys_write(AT91_SDRAMC_LPR, AT91_SDRAMC_LPCB_SELF_REFRESH).

I have also made that change in pm.c.  I've tested it with 2.6.20.4
and it seems to work.

> Currently I work on the power management on at91sam9260 so when I will
> finish my work, I could give you my files.

Please post your mods to the list when you are finished.  I will
gladly help you test them.
Are you going to implement slow clock standby mode?

Michel
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