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5cb13094 CP |
1 | /* |
2 | * Device Tree file for DB-DXBC2 board | |
3 | * | |
4 | * Copyright (C) 2016 Allied Telesis Labs | |
5 | * | |
6 | * Based on armada-xp-db.dts | |
7 | * | |
8 | * This file is dual-licensed: you can use it either under the terms | |
9 | * of the GPL or the X11 license, at your option. Note that this dual | |
10 | * licensing only applies to this file, and not this project as a | |
11 | * whole. | |
12 | * | |
13 | * a) This file is free software; you can redistribute it and/or | |
14 | * modify it under the terms of the GNU General Public License as | |
15 | * published by the Free Software Foundation; either version 2 of the | |
16 | * License, or (at your option) any later version. | |
17 | * | |
18 | * This file is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * Or, alternatively, | |
24 | * | |
25 | * b) Permission is hereby granted, free of charge, to any person | |
26 | * obtaining a copy of this software and associated documentation | |
27 | * files (the "Software"), to deal in the Software without | |
28 | * restriction, including without limitation the rights to use, | |
29 | * copy, modify, merge, publish, distribute, sublicense, and/or | |
30 | * sell copies of the Software, and to permit persons to whom the | |
31 | * Software is furnished to do so, subject to the following | |
32 | * conditions: | |
33 | * | |
34 | * The above copyright notice and this permission notice shall be | |
35 | * included in all copies or substantial portions of the Software. | |
36 | * | |
37 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
38 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
39 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
40 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
41 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
42 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
43 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
44 | * OTHER DEALINGS IN THE SOFTWARE. | |
45 | * | |
46 | * Note: this Device Tree assumes that the bootloader has remapped the | |
47 | * internal registers to 0xf1000000 (instead of the default | |
48 | * 0xd0000000). The 0xf1000000 is the default used by the recent, | |
49 | * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier | |
50 | * boards were delivered with an older version of the bootloader that | |
51 | * left internal registers mapped at 0xd0000000. If you are in this | |
52 | * situation, you should either update your bootloader (preferred | |
53 | * solution) or the below Device Tree should be adjusted. | |
54 | */ | |
55 | ||
56 | /dts-v1/; | |
57 | #include "armada-xp-98dx4251.dtsi" | |
58 | ||
59 | / { | |
60 | model = "Marvell Bobcat2 Evaluation Board"; | |
61 | compatible = "marvell,db-dxbc2", "marvell,armadaxp-98dx4251", "marvell,armadaxp", "marvell,armada-370-xp"; | |
62 | ||
63 | chosen { | |
64 | bootargs = "console=ttyS0,115200 earlyprintk"; | |
65 | }; | |
66 | ||
67 | memory { | |
68 | device_type = "memory"; | |
69 | reg = <0 0x00000000 0 0x20000000>; /* 512 MB */ | |
70 | }; | |
71 | ||
72 | }; | |
73 | ||
74 | &devbus_bootcs { | |
75 | status = "okay"; | |
76 | ||
77 | /* Device Bus parameters are required */ | |
78 | ||
79 | /* Read parameters */ | |
80 | devbus,bus-width = <16>; | |
81 | devbus,turn-off-ps = <60000>; | |
82 | devbus,badr-skew-ps = <0>; | |
83 | devbus,acc-first-ps = <124000>; | |
84 | devbus,acc-next-ps = <248000>; | |
85 | devbus,rd-setup-ps = <0>; | |
86 | devbus,rd-hold-ps = <0>; | |
87 | ||
88 | /* Write parameters */ | |
89 | devbus,sync-enable = <0>; | |
90 | devbus,wr-high-ps = <60000>; | |
91 | devbus,wr-low-ps = <60000>; | |
92 | devbus,ale-wr-ps = <60000>; | |
93 | }; | |
94 | ||
95 | &i2c0 { | |
96 | clock-frequency = <100000>; | |
97 | status = "okay"; | |
98 | }; | |
99 | ||
100 | &uart0 { | |
101 | status = "okay"; | |
102 | }; | |
103 | ||
104 | &uart1 { | |
105 | status = "okay"; | |
106 | }; | |
107 | ||
108 | &nand { | |
109 | status = "okay"; | |
110 | num-cs = <1>; | |
111 | marvell,nand-keep-config; | |
112 | marvell,nand-enable-arbiter; | |
113 | nand-on-flash-bbt; | |
114 | nand-ecc-strength = <4>; | |
115 | nand-ecc-step-size = <512>; | |
116 | }; | |
117 | ||
118 | &sdio { | |
119 | pinctrl-0 = <&sdio_pins>; | |
120 | pinctrl-names = "default"; | |
121 | status = "okay"; | |
122 | /* No CD or WP GPIOs */ | |
123 | broken-cd; | |
124 | }; | |
125 | ||
126 | &spi0 { | |
127 | status = "okay"; | |
128 | ||
129 | spi-flash@0 { | |
130 | #address-cells = <1>; | |
131 | #size-cells = <1>; | |
132 | compatible = "m25p64"; | |
133 | reg = <0>; /* Chip select 0 */ | |
134 | spi-max-frequency = <20000000>; | |
135 | m25p,fast-read; | |
136 | ||
137 | partition@u-boot { | |
138 | reg = <0x00000000 0x00100000>; | |
139 | label = "u-boot"; | |
140 | }; | |
141 | partition@u-boot-env { | |
142 | reg = <0x00100000 0x00040000>; | |
143 | label = "u-boot-env"; | |
144 | }; | |
145 | partition@unused { | |
146 | reg = <0x00140000 0x00ec0000>; | |
147 | label = "unused"; | |
148 | }; | |
149 | ||
150 | }; | |
151 | }; |