1 Renesas MSIOF spi controller
4 - compatible : "renesas,sh-msiof" for SuperH or
5 "renesas,sh-mobile-msiof" for SH Mobile series
6 - reg : Offset and length of the register set for the device
7 - interrupts : interrupt line used by MSIOF
10 - num-cs : total number of chip-selects
11 - renesas,tx-fifo-size : Overrides the default tx fifo size given in words
12 - renesas,rx-fifo-size : Overrides the default rx fifo size given in words