We are planning to use the 40-pin header on a chestnut board to control a few devices.  We are using an LCD/touchscreen connected to the Chestnut board, so several of the signals (eg. CS0) are not available for our other devices, and we are finding that we are becoming severly I/O constrained.
Does anyone know if the SPI hardware and linux drivers on the Overo Fire can support multiple devices on the SPI bus.  Specifically, can I use CS1 and share the other SPI signals with the LCD board?