Software Serial LinkitONE

Hi Guys

I have another project in a ARDUINO UNO, and i try to migrate to the LinkitOne, but i see that the Software serial not working.
as I understand, the card only has 2 serial ports and in my application I need 2 different serial ports, because the physical port (0 and 1 pins) is connected to an RS485 network with sensors and have a second serial port for send processed information to a RasberryPI.
How else can have that extra port?
The UART is useful to communicate with RASPBERRY?

Thanks in advance for every help.

Somebody can help me?

Any sugestion?

Please some help.