1 /*-
2 * Copyright (c) 2012-2013 Robert N. M. Watson
3 * Copyright (c) 2013 SRI International
4 * All rights reserved.
5 *
6 * This software was developed by SRI International and the University of
7 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
8 * ("CTSRD"), as part of the DARPA CRASH research programme.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34 /dts-v1/;
35
36 /*
37 * Device names here have been largely made up on the spot, especially for the
38 * "compatible" strings, and might want to be revised.
39 *
40 * For now, use 32-bit addressing as our Avalon bus is 32-bit. However, in
41 * the future, we should likely change to 64-bit.
42 */
43
44 / {
45 model = "SRI/Cambridge BERI simulation";
46 compatible = "sri-cambridge,beri-sim";
47 #address-cells = <1>;
48 #size-cells = <1>;
49
50 cpus {
51 #address-cells = <1>;
52 #size-cells = <1>;
53
54 /*
55 * Secondary CPUs all start disabled and use the
56 * spin-table enable method. cpu-release-addr must be
57 * specified for each cpu other than cpu@0. Values of
58 * cpu-release-addr grow down from 0x100000 (kernel).
59 */
60 status = "disabled";
61 enable-method = "spin-table";
62
63 cpu@0 {
64 device-type = "cpu";
65 compatible = "sri-cambridge,beri";
66
67 reg = <0 1>;
68 status = "okay";
69 };
70
71 /*
72 cpu@1 {
73 device-type = "cpu";
74 compatible = "sri-cambridge,beri";
75
76 reg = <1 1>;
77 // XXX: should we need cached prefix?
78 cpu-release-addr = <0xffffffff 0x800fffe0>;
79 };
80 */
81 };
82
83 memory {
84 device_type = "memory";
85 reg = <0x0 0x4000000>; // 64M at 0x0
86 };
87
88 cpuintc: cpuintc@0 {
89 #address-cells = <0>;
90 #interrupt-cells = <1>;
91 interrupt-controller;
92 compatible = "mti,cpu-interrupt-controller";
93 };
94
95 beripic0: beripic@7f804000 {
96 compatible = "sri-cambridge,beri-pic";
97 interrupt-controller;
98 #address-cells = <0>;
99 #interrupt-cells = <1>;
100 reg = <0x7f804000 0x400
101 0x7f806000 0x10
102 0x7f806080 0x10
103 0x7f806100 0x10>;
104 interrupts = < 2 3 4 5 6 >;
105 hard-interrupt-sources = <64>;
106 soft-interrupt-sources = <64>;
107 interrupt-parent = <&cpuintc>;
108 };
109
110 soc {
111 #address-cells = <1>;
112 #size-cells = <1>;
113 #interrupt-cells = <1>;
114
115 compatible = "simple-bus", "mips,mips4k";
116 ranges;
117
118 serial@7f000000 {
119 compatible = "altera,jtag_uart-11_0";
120 reg = <0x7f000000 0x40>;
121 interrupts = <0>;
122 interrupt-parent = <&beripic0>;
123 };
124
125 serial@7f001000 {
126 compatible = "altera,jtag_uart-11_0";
127 reg = <0x7f001000 0x40>;
128 };
129
130 serial@7f002000 {
131 compatible = "altera,jtag_uart-11_0";
132 reg = <0x7f002000 0x40>;
133 };
134
135 virtio_mmio_platform0: virtio_mmio_platform@0 {
136 compatible = "beri,virtio_mmio_platform";
137 interrupts = <1>;
138 interrupt-parent = <&beripic0>;
139 };
140
141 virtio_block@7f020000 {
142 compatible = "virtio,mmio";
143 reg = <0x7f020000 0x1000>;
144 platform = <&virtio_mmio_platform0>;
145 };
146
147 sdcard@7f008000 {
148 compatible = "altera,sdcard_11_2011";
149 reg = <0x7f008000 0x400>;
150 };
151
152 avgen@0x7f00a000 {
153 compatible = "sri-cambridge,avgen";
154 reg = <0x7f00a000 0x14>;
155 sri-cambridge,width = <4>;
156 sri-cambridge,fileio = "rw";
157 sri-cambridge,devname = "berirom";
158 };
159 };
160 };
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