GPIO in 4.x kernel

[zamek z]

Hi All,

I would like to use gpio from user space. Before 4.x kernel I can use it based on this article

http://papermint-designs.com/community/node/231

But, when I install a new 4.0.5-armv7-x2 in my pandaboard  es b1, there is only an empty board directory in /sys/kernel/debug/omap_mux and there is no other file or directory in it:(

Earlier I can use it with a Linux arm 3.7.10-x10  kernel. 

I recompile the omap4-panda-es.dtb to dts from /boot/dtbs/4.0.5-armv7-x2 and there is no gpmc* in it. 

How can I enable for example gpio37/gpio38 on j6? 

thx

Zamek