OpenAmp 2019.2 - fail to work with r0 and r1

[davidzehav1]

I have problem trying to work with openamp + share memory for r0 and r1
I want to work with openamp from kernel space and to have share memory for r0 and r1 - i have no problem (maybee better) to have 1 share memory for both r0 and r1 .
I was able to work and create channel for r0 - echo_test works fine but not for r1 (not getting the following message: virtio_rpmsg_bus virtio0: creating channel rpmsg-openamp-demo-channel addr 0x0 which i get only for r0)
Could you please help with this issue - can you share a device tree that will work with r0 and r1 (from kernel space) and what changes are needed (if any) in r1 echo test application?
i tried to use the examples in the following links but they are not working:
https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/150568961/OpenAMP+2019.2
https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/118358017/OpenAMP+2019.1​
I am working with ZCU-102, vitis 2019.2 and petalinux 2019.2
Thanks
David,