1 * SPI (Serial Peripheral Interface)
4 - cell-index : QE SPI subblock index.
7 - compatible : should be "fsl,spi" or "aeroflexgaisler,spictrl".
8 - mode : the SPI operation mode, it can be "cpu" or "cpu-qe".
9 - reg : Offset and length of the register set for the device
10 - interrupts : <a b> where a is the interrupt number and b is a
11 field that represents an encoding of the sense and level
12 information for the interrupt. This should be encoded based on
13 the information in section 2) depending on the type of interrupt
15 - interrupt-parent : the phandle for the interrupt controller that
16 services interrupts for this device.
17 - clock-frequency : input clock frequency to non FSL_SOC cores
20 - gpios : specifies the gpio pins to be used for chipselects.
21 The gpios will be referred to as reg = <index> in the SPI child nodes.
22 If unspecified, a single SPI device without a chip select can be used.
27 compatible = "fsl,spi";
30 interrupt-parent = <700>;
32 gpios = <&gpio 18 1 // device reg=<0>
33 &gpio 19 1>; // device reg=<1>
37 * eSPI (Enhanced Serial Peripheral Interface)
40 - compatible : should be "fsl,mpc8536-espi".
41 - reg : Offset and length of the register set for the device.
42 - interrupts : should contain eSPI interrupt, the device has one interrupt.
43 - fsl,espi-num-chipselects : the number of the chipselect signals.
46 - fsl,csbef: chip select assertion time in bits before frame starts
47 - fsl,csaft: chip select negation time in bits after frame ends
53 compatible = "fsl,mpc8536-espi";
54 reg = <0x110000 0x1000>;
55 interrupts = <53 0x2>;
56 interrupt-parent = <&mpic>;
57 fsl,espi-num-chipselects = <4>;