1 Marvell Orion SPI device
4 - compatible : should be on of the following:
5 - "marvell,orion-spi" for the Orion, mv78x00, Kirkwood and Dove SoCs
6 - "marvell,armada-370-spi", for the Armada 370 SoCs
7 - "marvell,armada-375-spi", for the Armada 375 SoCs
8 - "marvell,armada-380-spi", for the Armada 38x SoCs
9 - "marvell,armada-390-spi", for the Armada 39x SoCs
10 - "marvell,armada-xp-spi", for the Armada XP SoCs
11 - reg : offset and length of the register set for the device
12 - cell-index : Which of multiple SPI controllers is this.
14 - interrupts : Is currently not used.
18 compatible = "marvell,orion-spi";