Commands to partition the hw partitions on emmc using uboot 2015-04

Hi !
I am unable to create the hardware (gp1-4) partitions my eMMC on a custom board using the new Uboot(2015.04). I think i am missing something in my commands..I was wondering if someone can point at the mistake i am doing..

i am trying to create a gp1 partition with 7009.875 MB and SLC on and wrrel off..

mmc hwpartition [args...] - does hardware partitioning
arguments (sizes in 512-byte blocks):
[user [enh start cnt] [wrrel {on|off}]] - sets user data area attributes [gp1|gp2|gp3|gp4 cnt [enh] [wrrel {on|off}]] - general purpose partition [check|set|complete] - mode, complete set partitioning completed
WARNING: Partitioning is a write-once setting once it is set to complete. Power cycling is required to initialize partitions after set to complete.

mmc hwpartition gp1 14356224 -----> did not work
mmc hwpartition gp1 14356224 1 wrrel 0ff -----> did not work
mmc hwpartition gp1 14356224 [1] wrrel off ------> did not work mmc hwpartition gp1 14356224 1 0 ------> did not work mmc hwpartition gp1 14356224 [enh] off ------> did not work

U-Boot# mmc hwpartition check
Partition configuration:
No enhanced user data area
No GP1 partition
No GP2 partition
No GP3 partition
No GP4 partition

Thanks,
Harsha

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