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 properties:
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", or
28	"fsl,<board>-fpga", "fsl,fpga-qixis"
29- reg: should contain the address and the length of the FPGA register set.
30
31Optional properties:
32- interrupt-parent: should specify phandle for the interrupt controller.
33- interrupts: should specify event (wakeup) IRQ.
34
35Example (P1022DS):
36
37	 board-control@3,0 {
38		 compatible = "fsl,p1022ds-fpga", "fsl,fpga-ngpixis";
39		 reg = <3 0 0x30>;
40		 interrupt-parent = <&mpic>;
41		 interrupts = <8 8 0 0>;
42	 };
43
44Example (LS2080A-RDB):
45
46        cpld@3,0 {
47                compatible = "fsl,ls2080ardb-fpga", "fsl,fpga-qixis";
48                reg = <0x3 0 0x10000>;
49        };
50
51* Freescale BCSR GPIO banks
52
53Some BCSR registers act as simple GPIO controllers, each such
54register can be represented by the gpio-controller node.
55
56Required properities:
57- compatible : Should be "fsl,<board>-bcsr-gpio".
58- reg : Should contain the address and the length of the GPIO bank
59  register.
60- #gpio-cells : Should be two. The first cell is the pin number and the
61  second cell is used to specify optional parameters (currently unused).
62- gpio-controller : Marks the port as GPIO controller.
63
64Example:
65
66	bcsr@1,0 {
67		#address-cells = <1>;
68		#size-cells = <1>;
69		compatible = "fsl,mpc8360mds-bcsr";
70		reg = <1 0 0x8000>;
71		ranges = <0 1 0 0x8000>;
72
73		bcsr13: gpio-controller@d {
74			#gpio-cells = <2>;
75			compatible = "fsl,mpc8360mds-bcsr-gpio";
76			reg = <0xd 1>;
77			gpio-controller;
78		};
79	};
80
81* Freescale on-board FPGA connected on I2C bus
82
83Some Freescale boards like BSC9132QDS have on board FPGA connected on
84the i2c bus.
85
86Required properties:
87- compatible: Should be a board-specific string followed by a string
88  indicating the type of FPGA.  Example:
89	"fsl,<board>-fpga", "fsl,fpga-qixis-i2c"
90- reg: Should contain the address of the FPGA
91
92Example:
93	fpga: fpga@66 {
94		compatible = "fsl,bsc9132qds-fpga", "fsl,fpga-qixis-i2c";
95		reg = <0x66>;
96	};
97
98* Freescale on-board CPLD
99
100Some Freescale boards like T1040RDB have an on board CPLD connected.
101
102Required properties:
103- compatible: Should be a board-specific string like "fsl,<board>-cpld"
104  Example:
105	"fsl,t1040rdb-cpld", "fsl,t1042rdb-cpld", "fsl,t1042rdb_pi-cpld"
106- reg: should describe CPLD registers
107
108Example:
109	cpld@3,0 {
110		compatible = "fsl,t1040rdb-cpld";
111		reg = <3 0 0x300>;
112	};
113