When putting the processor into memory sleep mode as follows:
zynq> rtcwake -m mem -s 10
wakeup from "mem" at Sat Jul 29 13:25:03 2017
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.012 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
sd 0:0:0:0: [sda] Synchronizing SCSI cache
sd 0:0:0:0: [sda] Stopping disk
PM: suspend of devices complete after 9.482 msecs
PM: suspend devices took 0.010 seconds
PM: late suspend of devices complete after 0.657 msecs
PM: noirq suspend of devices complete after 0.731 msecs
Dsabling non-boot CPUs ...
CPU1: shutdown
The system never wakes back up. The RTC wake-up interrupt comes from the FPGA fabric, and is triggering correctly, the system recognizes it when it is running. I am using Petalinux 2015.4.
Here is my device tree entry:
rtc@6F {
compatible = "microchip,mcp7940x";
reg = <0x6F>;
interrupt-parent = <&intc>;
interrupts = <0 30 4>;
interrupt-names = "wakeup";
wakeup-source;
};
Am I missing something?
