2012/1/9 Marek Vasut <marek.vasut at gmail.com>: >> Nope, it does not work. Looks like device disables power on memory in >> deepsleep. > > Why? In deepsleep PXA27x deasserts SYS_EN pin, and looks like when it's deasserted there's no power on SDRAM (on Zipit). Just guess.