Kirkwood dts spi-gpio

[a.lombardinilo]

My platform is based on the Marvell kirkwood 88e6281.
I'm updating the kernel from version 3.3.8 to version 3.18.27.
I'm new in dts and I have some problem on the configuration in the spi-gpio.
I'm using the spi-gpio for can interface (MCP2510).

Can anyone provide an example of configuration/settings?

The hardware connection is the following:
 - CAN_SPI_CS -> MPP39
 - CAN_SPI_SCK -> MPP39
 - CAN_SPI_MISO -> MPP39
 - CAN_SPI_MOSI -> MPP39
 - CAN_SPI_IRQ -> MPP39
 - CAN_SPI_RST -> MPP39