kernel bootup error beagle bone black

to create a kernel image i followed the procedure from below site

i created the kernel image and rootfs using arm-linux-gnueabi-gcc compiler
while booting the image kernel loaded successfully into the ram memory. but when i do bootm 0x80200000 command the booting was stopped immediately without any error log information …simply curser waiting after "OK Starting kernel … " message…

my log message for your reference