I have a TWR-LS1021A-PB board, with vanilla QorIQ Linux SDK v2.0 installed.
The board does not exit from deep sleep properly.
root@ls1021atwr:~# echo 5 > /sys/devices/platform/soc/29d0000.ftm0/ftm_alarm && echo mem > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.001 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
PM: suspend of devices complete after 177.340 msecs
PM: late suspend of devices complete after 1.348 msecs
PM: noirq suspend of devices complete after 1.230 msecs
Disabling non-boot CPUs ...
kvm: disabling virtualization on CPU1
CPU1: shutdown
Retrying again to check for CPU kill
CPU1 killed.
[5 seconds elapse]
Enabling non-boot CPUs ...
kvm: enabling virtualization on CPU1
CPU1 is up
PM: noirq resume of devices complete after 1.366 msecs
PM: early resume of devices complete after 1.202 msecs
caam 1700000.crypto: Entropy delay = 3200
caam 1700000.crypto: failed to acquire DECO 0
caam 1700000.crypto: failed to instantiate RNG
dpm_run_callback(): platform_pm_resume+0x1/0x1c returns -19
PM: Device 1700000.crypto failed to resume: error -19
usb usb1: root hub lost power or was reset
usb usb2: root hub lost power or was reset
ata1: SATA link down (SStatus 0 SControl 300)
fsl-gianfar soc:ethernet@2d50000 eth1: Link is Down
fsl-gianfar soc:ethernet@2d50000 eth1: Link is Up - 1Gbps/Full - flow control rx/tx
[I manually un-plug eth1]
fsl-gianfar soc:ethernet@2d50000 eth1: Link is Down
[I manually re-plug eth1]
fsl-gianfar soc:ethernet@2d50000 eth1: Link is Up - 1Gbps/Full - flow control rx/tx
I do not have a shell anymore when the board exists from deep sleep.
I also cannot ssh anymore to the board (sometimes it will answer pings, but not TCP packets) after deep sleep exit.
However, I still get kernel logs from eth1 plugs, so the kernel is still running.
