aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/bcm2835.dtsi
blob: 4d4c1294c082afda32c9c2d5c3aff3f3a5183aaa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
#include <dt-bindings/pinctrl/bcm2835.h>
#include "skeleton.dtsi"

/ {
	compatible = "brcm,bcm2835";
	model = "BCM2835";
	interrupt-parent = <&intc>;

	chosen {
		bootargs = "earlyprintk console=ttyAMA0";
	};

	soc {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <1>;
		ranges = <0x7e000000 0x20000000 0x02000000>;

		timer@7e003000 {
			compatible = "brcm,bcm2835-system-timer";
			reg = <0x7e003000 0x1000>;
			interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
			clock-frequency = <1000000>;
		};

		dma: dma@7e007000 {
			compatible = "brcm,bcm2835-dma";
			reg = <0x7e007000 0xf00>;
			interrupts = <1 16>,
				     <1 17>,
				     <1 18>,
				     <1 19>,
				     <1 20>,
				     <1 21>,
				     <1 22>,
				     <1 23>,
				     <1 24>,
				     <1 25>,
				     <1 26>,
				     <1 27>,
				     <1 28>;

			#dma-cells = <1>;
			brcm,dma-channel-mask = <0x7f35>;
		};

		intc: interrupt-controller@7e00b200 {
			compatible = "brcm,bcm2835-armctrl-ic";
			reg = <0x7e00b200 0x200>;
			interrupt-controller;
			#interrupt-cells = <2>;
		};

		watchdog@7e100000 {
			compatible = "brcm,bcm2835-pm-wdt";
			reg = <0x7e100000 0x28>;
		};

		rng@7e104000 {
			compatible = "brcm,bcm2835-rng";
			reg = <0x7e104000 0x10>;
		};

		gpio: gpio@7e200000 {
			compatible = "brcm,bcm2835-gpio";
			reg = <0x7e200000 0xb4>;
			/*
			 * The GPIO IP block is designed for 3 banks of GPIOs.
			 * Each bank has a GPIO interrupt for itself.
			 * There is an overall "any bank" interrupt.
			 * In order, these are GIC interrupts 17, 18, 19, 20.
			 * Since the BCM2835 only has 2 banks, the 2nd bank
			 * interrupt output appears to be mirrored onto the
			 * 3rd bank's interrupt signal.
			 * So, a bank0 interrupt shows up on 17, 20, and
			 * a bank1 interrupt shows up on 18, 19, 20!
			 */
			interrupts = <2 17>, <2 18>, <2 19>, <2 20>;

			gpio-controller;
			#gpio-cells = <2>;

			interrupt-controller;
			#interrupt-cells = <2>;
		};

		uart@7e201000 {
			compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
			reg = <0x7e201000 0x1000>;
			interrupts = <2 25>;
			clock-frequency = <3000000>;
			arm,primecell-periphid = <0x00241011>;
		};

		i2s: i2s@7e203000 {
			compatible = "brcm,bcm2835-i2s";
			reg = <0x7e203000 0x20>,
			      <0x7e101098 0x02>;

			dmas = <&dma 2>,
			       <&dma 3>;
			dma-names = "tx", "rx";
			status = "disabled";
		};

		spi: spi@7e204000 {
			compatible = "brcm,bcm2835-spi";
			reg = <0x7e204000 0x1000>;
			interrupts = <2 22>;
			clocks = <&clk_spi>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		i2c0: i2c@7e205000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e205000 0x1000>;
			interrupts = <2 21>;
			clocks = <&clk_i2c>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		sdhci: sdhci@7e300000 {
			compatible = "brcm,bcm2835-sdhci";
			reg = <0x7e300000 0x100>;
			interrupts = <2 30>;
			clocks = <&clk_mmc>;
			status = "disabled";
		};

		i2c1: i2c@7e804000 {
			compatible = "brcm,bcm2835-i2c";
			reg = <0x7e804000 0x1000>;
			interrupts = <2 21>;
			clocks = <&clk_i2c>;
			#address-cells = <1>;
			#size-cells = <0>;
			status = "disabled";
		};

		usb@7e980000 {
			compatible = "brcm,bcm2835-usb";
			reg = <0x7e980000 0x10000>;
			interrupts = <1 9>;
		};

		arm-pmu {
			compatible = "arm,arm1176-pmu";
		};
	};

	clocks {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;

		clk_mmc: clock@0 {
			compatible = "fixed-clock";
			reg = <0>;
			#clock-cells = <0>;
			clock-output-names = "mmc";
			clock-frequency = <100000000>;
		};

		clk_i2c: clock@1 {
			compatible = "fixed-clock";
			reg = <1>;
			#clock-cells = <0>;
			clock-output-names = "i2c";
			clock-frequency = <250000000>;
		};

		clk_spi: clock@2 {
			compatible = "fixed-clock";
			reg = <2>;
			#clock-cells = <0>;
			clock-output-names = "spi";
			clock-frequency = <250000000>;
		};
	};
};