devkit8000 linux booting problem

hi all
i m trying to boot linux-2.6.36-rc8 on devkit800 and it is failing at
mounting the file system
i have downloaded the source code form devkit gitorious
2.929504] ---[ end trace 38a34f83bbd42bb1 ]---
[ 2.934173] omapfb omapfb: failed to ioremap framebuffer
[ 2.939605] omapfb omapfb: failed to allocate fbmem
[ 2.944549] omapfb omapfb: failed to setup omapfb
[ 2.949462] omapfb: probe of omapfb failed with error -12
[ 2.956573] regulator_init_complete: incomplete constraints,
leaving VDAC on
[ 2.965332] twl_rtc twl_rtc: setting system clock to 2000-01-01
00:00:00 UTC (946684800)
[ 2.993164] Root-NFS: No NFS server available, giving up.
[ 2.998809] VFS: Unable to mount root fs via NFS, trying floppy.
[ 3.006927] VFS: Cannot open root device "mmcblk0p2" or unknown-
block(2,0)
[ 3.014007] Please append a correct "root=" boot option; here are
the available partitions:
[ 3.022674] 1f00 512 mtdblock0 (driver?)
[ 3.027801] 1f01 1920 mtdblock1 (driver?)
[ 3.032897] 1f02 128 mtdblock2 (driver?)
[ 3.037933] 1f03 4096 mtdblock3 (driver?)
[ 3.043060] 1f04 255488 mtdblock4 (driver?)
[ 3.048156] Kernel panic - not syncing: VFS: Unable to mount root
fs on unknown-block(2,0)

my boot args
setenv bootargs 'console=ttyS2,115200n8 noinitrd root=/dev/mmcblk0p2
rootfstype=ext3 rw rootwait video=omapfb:mode:4.3inch_LCD'

i believe there is no problem with the ext3 partition of the sd
card... because it boots smoothly for 2.6.28-omap..

kindly help

thank u