passing ram= argument to kernel

[Prashant Alange]

Hi,
I am trying to pass ram= argument to kernel and my bootcmd is as shown below

tftpboot 03000000 prashant/root.img; tftpboot 00100000 prashant/uImage; setenv b
ootargs root=/dev/ram ram=60M
ip=10.67.65.68:10.67.65.39:255.255.255.0:MPC8270:eth1:off; bootm
00100000 03000000

I have 64 MB RAM on my system. With above command if I boot the board and see
cat /proc/meminfo I still see 64MB RAM.
Can anyone tell me, how to pass ram argument. 

Thanks,
Prashant