This common platform uses PS7 SPI and I2C to communicate with different chips.
On different connectors different pin configurations are supported:
- On connector JA, a spi interface and a 2 pin GPIO
- On connector JB, a I2C interface
- On connector JC, a spi interface with 2 chip selects
This project has a SPI controller connected to each of the ZED boards PMOD
ports JA, JB, JC, JD pin 1-4. Pin 7-10 are connected to the PS7 general purpose
GPIOs, except for JC where it is connected to the PS7 UART controller.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>