Happen to partition the mmc into 5 partitions 3p +2extended but later on with some tweaking in the fstab wasn't able to mount the swap partition, not only that the fdisk /dev/mmcblk0 was not showing any partition with p switch (the mmc was detected properly by the kernel used dmesg|grep mmc and also the /dev was populated by created partitions ) . so commented the mmcblk partition in fstab and restarted the device which enabled to see the partition in fdisk - no idea why it behaved that way. So again formatted mmc card into 4 primary partition. lets see what happens now.