On Wed, 15 Oct 2014, Pavel Machek wrote: > On Tue 2014-10-14 14:33:39, at...@opensource.altera.com wrote: > > From: Alan Tull <at...@opensource.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 <at...@opensource.altera.com> > > Acked-by: Pavel Machek <pa...@denx.de> > > -- > (english) http://www.livejournal.com/~pavelmachek > (cesky, pictures) > http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html >
Thanks! Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
