I'm using mainline kernel 3.11.4 with SABRESDB and the LTIB-supplied rootfs, and just noticed that I can't see the eMMC.
If I insert the SD card, then "cat /proc/partitions" shows me:
major minor #blocks name
179 0 7761920 mmcblk0
179 1 7753728 mmcblk0p1
But with it removed, there's nothing listed (even though eMMC is there).
If I switch back to using the LTIB-based kernel, eMMC shows up in /proc/partitions.
What is it in the kernel that I need to tweak to see eMMC?