If WinCE has been in suspend mode:

    HaRET boot
    Shuttingdown hardware
    Turning off MMU...

---> device stalls (always)


After hard reset:
    <kernel boot>
    Waiting 10 sec before mounting root device....
    Boot-NFS ...
    VFS <via floppy>
    VFS: Cannot open root device "mmcblk0" or unknown block(2,0)
    Please append ...
    Kernel panic....VFS unable to mount...


Sometimes if success (chances  seem to be better if hard reset + soft reset)

<6>[    0.660000] Waiting 10sec before mounting root device...
<6>[    0.700000] mmcblk0: mmc0:1234 SD02G 1992704KiB
<6>[    0.710000]  mmcblk0: unknown partition table
<6>[    0.760000] udc: USB reset
<6>[    1.000000] udc: USB reset
<6>[    1.120000] udc: USB reset
<6>[    1.300000] usb0: full speed config #1: 100 mA, Ethernet Gadget, using CDC Ethernet Subset
<4>[   10.690000] EXT2-fs warning: checktime reached, running e2fsck is recommended
<4>[   10.810000] VFS: Mounted root (ext2 filesystem).
<6>[   10.820000] Freeing init memory: 100K

Note the mmcblk0 messages. Each time I see those, boot will be successfull. The "USB reset" is because of the USB cabel connected.