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