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Message-ID: <20141015075001.GB10720@amd> Date: Wed, 15 Oct 2014 09:50:01 +0200 From: Pavel Machek <pavel@...x.de> To: atull@...nsource.altera.com Cc: dinguyen@...nsource.altera.com, linux@....linux.org.uk, arnd@...db.de, s.trumtrar@...gutronix.de, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, delicious.quinoa@...il.com, yvanderv@...nsource.altera.com Subject: Re: [PATCH v3 2/2] socfpga: support suspend to ram On Tue 2014-10-14 14:33:39, atull@...nsource.altera.com wrote: > From: Alan Tull <atull@...nsource.altera.com> > > Add code that requests that the sdr controller go into > self-refresh mode. This code is run from ocram. > > This patch assumes that u-boot has already configured sdr: > sdr.ctrlcfg.lowpwreq.selfrfshmask = 3 > sdr.ctrlcfg.lowpwrtiming.clkdisablecycles = 8 > sdr.ctrlcfg.dramtiming4.selfrfshexit = 512 > > How to suspend to ram: > $ echo enabled > \ > /sys/devices/soc/ffc02000.serial0/tty/ttyS0/power/wakeup > > $ echo -n mem > /sys/power/state > > Signed-off-by: Alan Tull <atull@...nsource.altera.com> Acked-by: Pavel Machek <pavel@...x.de> -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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