I am currently trying to connect to a W5100 / wiz812mj to a Raspberry 3 by using the SMI.
The breakout board needs a /CS, /WR and /RD pin connected. In the alternative GPIO pinout 1 (http://elinux.org/RPi_BCM2835_GPIOs) I can only find /OE and /WE, even tough a /CS signal is mentioned in the device tree overlay for SMI.
How can I "create" a CS-Signal? Is there a possibility to define it in a DT-overlay?