1Freescale Reference Board Bindings
2
3This document describes device tree bindings for various devices that
4exist on some Freescale reference boards.
5
6* Board Control and Status (BCSR)
7
8Required properties:
9
10 - compatible : Should be "fsl,<board>-bcsr"
11 - reg : Offset and length of the register set for the device
12
13Example:
14
15	bcsr@f8000000 {
16		compatible = "fsl,mpc8360mds-bcsr";
17		reg = <f8000000 8000>;
18	};
19
20* Freescale on-board FPGA
21
22This is the memory-mapped registers for on board FPGA.
23
24Required properities:
25- compatible: should be a board-specific string followed by a string
26  indicating the type of FPGA.  Example:
27	"fsl,<board>-fpga", "fsl,fpga-pixis"
28- reg: should contain the address and the length of the FPGA register set.
29- interrupt-parent: should specify phandle for the interrupt controller.
30- interrupts: should specify event (wakeup) IRQ.
31
32Example (P1022DS):
33
34	 board-control@3,0 {
35		 compatible = "fsl,p1022ds-fpga", "fsl,fpga-ngpixis";
36		 reg = <3 0 0x30>;
37		 interrupt-parent = <&mpic>;
38		 interrupts = <8 8 0 0>;
39	 };
40
41* Freescale BCSR GPIO banks
42
43Some BCSR registers act as simple GPIO controllers, each such
44register can be represented by the gpio-controller node.
45
46Required properities:
47- compatible : Should be "fsl,<board>-bcsr-gpio".
48- reg : Should contain the address and the length of the GPIO bank
49  register.
50- #gpio-cells : Should be two. The first cell is the pin number and the
51  second cell is used to specify optional parameters (currently unused).
52- gpio-controller : Marks the port as GPIO controller.
53
54Example:
55
56	bcsr@1,0 {
57		#address-cells = <1>;
58		#size-cells = <1>;
59		compatible = "fsl,mpc8360mds-bcsr";
60		reg = <1 0 0x8000>;
61		ranges = <0 1 0 0x8000>;
62
63		bcsr13: gpio-controller@d {
64			#gpio-cells = <2>;
65			compatible = "fsl,mpc8360mds-bcsr-gpio";
66			reg = <0xd 1>;
67			gpio-controller;
68		};
69	};
70
71* Freescale on-board FPGA connected on I2C bus
72
73Some Freescale boards like BSC9132QDS have on board FPGA connected on
74the i2c bus.
75
76Required properties:
77- compatible: Should be a board-specific string followed by a string
78  indicating the type of FPGA.  Example:
79	"fsl,<board>-fpga", "fsl,fpga-qixis-i2c"
80- reg: Should contain the address of the FPGA
81
82Example:
83	fpga: fpga@66 {
84		compatible = "fsl,bsc9132qds-fpga", "fsl,fpga-qixis-i2c";
85		reg = <0x66>;
86	};
87
88* Freescale on-board CPLD
89
90Some Freescale boards like T1040RDB have an on board CPLD connected.
91
92Required properties:
93- compatible: Should be a board-specific string like "fsl,<board>-cpld"
94  Example:
95	"fsl,t1040rdb-cpld", "fsl,t1042rdb-cpld", "fsl,t1042rdb_pi-cpld"
96- reg: should describe CPLD registers
97
98Example:
99	cpld@3,0 {
100		compatible = "fsl,t1040rdb-cpld";
101		reg = <3 0 0x300>;
102	};
103