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1/*
2 * Device Tree file for Compulab SBC-A510 Single Board Computer
3 *
4 * Copyright (C) 2015, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 *
6 * This file is dual-licensed: you can use it either under the terms
7 * of the GPL or the X11 license, at your option. Note that this dual
8 * licensing only applies to this file, and not this project as a
9 * whole.
10 *
11 * a) This file is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; version 2 of the
14 * License.
15 *
16 * This file is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * Or, alternatively,
22 *
23 * b) Permission is hereby granted, free of charge, to any person
24 * obtaining a copy of this software and associated documentation
25 * files (the "Software"), to deal in the Software without
26 * restriction, including without limitation the rights to use,
27 * copy, modify, merge, publish, distribute, sublicense, and/or
28 * sell copies of the Software, and to permit persons to whom the
29 * Software is furnished to do so, subject to the following
30 * conditions:
31 *
32 * The above copyright notice and this permission notice shall be
33 * included in all copies or substantial portions of the Software.
34 *
35 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
36 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
37 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
38 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
39 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
40 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
41 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
42 * OTHER DEALINGS IN THE SOFTWARE.
43 */
44
45/*
46 * SBC-A510 comprises a PCA9555 I2C GPIO expander its GPIO lines connected to
47 *
48 * 0.0 USB0 VBUS_EN (active high)
49 * 0.1 USB0 VBUS_GOOD
50 * 0.2 DVI transmitter TI TFP410 MSEN
51 * 0.3 DVI transmitter TI TFP410 PD# (active low power down)
52 * 0.4 LVDS transmitter DS90C365 PD# (active low power down)
53 * 0.5 LCD nRST (active low reset)
54 * 0.6 PCIe0 nRST (active low reset)
55 * 0.7 mini-PCIe slot W_DISABLE#
56 *
57 * 1.0 MMC WP
58 * 1.1 Camera Input FPC FLASH_STB and P21.5
59 * 1.2 Camera Input FPC WE and P21.22
60 * 1.3 MMC VCC_EN (active high) and P21.7
61 * 1.4 Camera Input FPC AFTR_RST and P21.17
62 * 1.5 Camera Input FPC OE and P21.19
63 * 1.6 Camera Input FPC SNPSHT and P21.6
64 * 1.7 Camera Input FPC SHTR and P21.10
65 */
66
67/dts-v1/;
68
69#include "dove-cm-a510.dtsi"
70
71/ {
72 model = "Compulab SBC-A510";
73 compatible = "compulab,sbc-a510", "compulab,cm-a510", "marvell,dove";
74
75 chosen {
76 stdout-path = &uart0;
77 };
78
79 regulators {
80 usb0_power: regulator@2 {
81 compatible = "regulator-fixed";
82 regulator-name = "USB Power";
83 regulator-min-microvolt = <5000000>;
84 regulator-max-microvolt = <5000000>;
85 gpio = <&gpio_ext 0 GPIO_ACTIVE_HIGH>;
86 };
87
88 mmc_power: regulator@3 {
89 compatible = "regulator-fixed";
90 regulator-name = "MMC Power";
91 regulator-min-microvolt = <3300000>;
92 regulator-max-microvolt = <3300000>;
93 gpio = <&gpio_ext 13 GPIO_ACTIVE_HIGH>;
94 };
95 };
96};
97
98/* Ethernet0 depends on CM-A510 option E1 */
99&mdio { status = "disabled"; };
100ð { status = "disabled"; };
101ðphy { status = "disabled"; };
102
103/*
104 * USB port 0 can be powered and monitored by I2C GPIO expander:
105 * VBUS_ENABLE on GPIO0, VBUS_GOOD on GPIO1
106 */
107&ehci0 {
108 status = "okay";
109 vbus-supply = <&usb0_power>;
110};
111
112/* USB port 1 (and ports 2, 3 if CM-A510 has U4 option) */
113&ehci1 { status = "okay"; };
114
115/*
116 * I2C bus layout:
117 * i2c0:
118 * - Audio Codec, 0x1a (option from CM-A510)
119 * - DVI transmitter TI TFP410, 0x39
120 * - HDMI/DVI DDC channel
121 * i2c1:
122 * - GPIO expander, NXP PCA9555, 0x20
123 * - VGA DDC channel
124 */
125&i2c {
126 pinctrl-0 = <&pmx_i2c1>;
127 pinctrl-names = "default";
128};
129
130&i2c0 {
131 /* TI TFP410 DVI transmitter */
132 dvi: video@39 {
133 compatible = "ti,tfp410";
134 reg = <0x39>;
135 powerdown-gpio = <&gpio_ext 3 GPIO_ACTIVE_LOW>;
136 };
137};
138
139&i2c1 {
140 status = "okay";
141
142 /* NXP PCA9555 GPIO expander */
143 gpio_ext: gpio@20 {
144 compatible = "nxp,pca9555";
145 reg = <0x20>;
146 #gpio-cells = <2>;
147 };
148};
149
150&pcie { status = "okay"; };
151
152/*
153 * PCIe0 can be configured by Jumper E1 to be either connected to
154 * a mini-PCIe slot or a Pericom PI7C9X111 PCIe-to-PCI bridge.
155 */
156&pcie0 {
157 status = "okay";
158 pinctrl-0 = <&pmx_pcie0_clkreq>;
159 pinctrl-names = "default";
160 reset-gpios = <&gpio_ext 6 GPIO_ACTIVE_LOW>;
161};
162
163/* Ethernet1 depends on CM-A510 option E2 */
164&pcie1 { status = "disabled"; };
165
166/* SATA connector */
167&sata0 { status = "okay"; };
168
169/*
170 * SDIO0 is connected to a MMC/SD/SDIO socket, I2C GPIO expander has
171 * VCC_MMC_ENABLE on GPIO13, MMC_WP on GPIO10
172 */
173&sdio0 {
174 vmmc-supply = <&mmc_power>;
175 wp-gpios = <&gpio_ext 10 GPIO_ACTIVE_LOW>;
176 status = "okay";
177};
178
179/* UART0 on RS232 mini-connector */
180&uart0 { status = "okay"; };
181/* UART2 on pin headers */
182&uart2 { status = "okay"; };
1/*
2 * Device Tree file for Compulab SBC-A510 Single Board Computer
3 *
4 * Copyright (C) 2015, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 *
6 * This file is dual-licensed: you can use it either under the terms
7 * of the GPL or the X11 license, at your option. Note that this dual
8 * licensing only applies to this file, and not this project as a
9 * whole.
10 *
11 * a) This file is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; version 2 of the
14 * License.
15 *
16 * This file is distributed in the hope that it will be useful
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * Or, alternatively
22 *
23 * b) Permission is hereby granted, free of charge, to any person
24 * obtaining a copy of this software and associated documentation
25 * files (the "Software"), to deal in the Software without
26 * restriction, including without limitation the rights to use
27 * copy, modify, merge, publish, distribute, sublicense, and/or
28 * sell copies of the Software, and to permit persons to whom the
29 * Software is furnished to do so, subject to the following
30 * conditions:
31 *
32 * The above copyright notice and this permission notice shall be
33 * included in all copies or substantial portions of the Software.
34 *
35 * THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
36 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
37 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
38 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
39 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
40 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
41 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
42 * OTHER DEALINGS IN THE SOFTWARE.
43 */
44
45/*
46 * SBC-A510 comprises a PCA9555 I2C GPIO expander its GPIO lines connected to
47 *
48 * 0.0 USB0 VBUS_EN (active high)
49 * 0.1 USB0 VBUS_GOOD
50 * 0.2 DVI transmitter TI TFP410 MSEN
51 * 0.3 DVI transmitter TI TFP410 PD# (active low power down)
52 * 0.4 LVDS transmitter DS90C365 PD# (active low power down)
53 * 0.5 LCD nRST (active low reset)
54 * 0.6 PCIe0 nRST (active low reset)
55 * 0.7 mini-PCIe slot W_DISABLE#
56 *
57 * 1.0 MMC WP
58 * 1.1 Camera Input FPC FLASH_STB and P21.5
59 * 1.2 Camera Input FPC WE and P21.22
60 * 1.3 MMC VCC_EN (active high) and P21.7
61 * 1.4 Camera Input FPC AFTR_RST and P21.17
62 * 1.5 Camera Input FPC OE and P21.19
63 * 1.6 Camera Input FPC SNPSHT and P21.6
64 * 1.7 Camera Input FPC SHTR and P21.10
65 */
66
67/dts-v1/;
68
69#include "dove-cm-a510.dtsi"
70
71/ {
72 model = "Compulab SBC-A510";
73 compatible = "compulab,sbc-a510", "compulab,cm-a510", "marvell,dove";
74
75 chosen {
76 stdout-path = &uart0;
77 };
78
79 regulators {
80 usb0_power: regulator@2 {
81 compatible = "regulator-fixed";
82 regulator-name = "USB Power";
83 regulator-min-microvolt = <5000000>;
84 regulator-max-microvolt = <5000000>;
85 gpio = <&gpio_ext 0 GPIO_ACTIVE_HIGH>;
86 };
87
88 mmc_power: regulator@3 {
89 compatible = "regulator-fixed";
90 regulator-name = "MMC Power";
91 regulator-min-microvolt = <3300000>;
92 regulator-max-microvolt = <3300000>;
93 gpio = <&gpio_ext 13 GPIO_ACTIVE_HIGH>;
94 };
95 };
96};
97
98/* Ethernet0 depends on CM-A510 option E1 */
99&mdio { status = "disabled"; };
100ð { status = "disabled"; };
101ðphy { status = "disabled"; };
102
103/*
104 * USB port 0 can be powered and monitored by I2C GPIO expander:
105 * VBUS_ENABLE on GPIO0, VBUS_GOOD on GPIO1
106 */
107&ehci0 {
108 status = "okay";
109 vbus-supply = <&usb0_power>;
110};
111
112/* USB port 1 (and ports 2, 3 if CM-A510 has U4 option) */
113&ehci1 { status = "okay"; };
114
115/*
116 * I2C bus layout:
117 * i2c0:
118 * - Audio Codec, 0x1a (option from CM-A510)
119 * - DVI transmitter TI TFP410, 0x39
120 * - HDMI/DVI DDC channel
121 * i2c1:
122 * - GPIO expander, NXP PCA9555, 0x20
123 * - VGA DDC channel
124 */
125&i2c {
126 pinctrl-0 = <&pmx_i2c1>;
127 pinctrl-names = "default";
128};
129
130&i2c0 {
131 /* TI TFP410 DVI transmitter */
132 dvi: video@39 {
133 compatible = "ti,tfp410";
134 reg = <0x39>;
135 powerdown-gpio = <&gpio_ext 3 GPIO_ACTIVE_LOW>;
136 };
137};
138
139&i2c1 {
140 status = "okay";
141
142 /* NXP PCA9555 GPIO expander */
143 gpio_ext: gpio@20 {
144 compatible = "nxp,pca9555";
145 reg = <0x20>;
146 #gpio-cells = <2>;
147 };
148};
149
150&pcie { status = "okay"; };
151
152/*
153 * PCIe0 can be configured by Jumper E1 to be either connected to
154 * a mini-PCIe slot or a Pericom PI7C9X111 PCIe-to-PCI bridge.
155 */
156&pcie0 {
157 status = "okay";
158 pinctrl-0 = <&pmx_pcie0_clkreq>;
159 pinctrl-names = "default";
160 reset-gpios = <&gpio_ext 6 GPIO_ACTIVE_LOW>;
161};
162
163/* Ethernet1 depends on CM-A510 option E2 */
164&pcie1 { status = "disabled"; };
165
166/* SATA connector */
167&sata0 { status = "okay"; };
168
169/*
170 * SDIO0 is connected to a MMC/SD/SDIO socket, I2C GPIO expander has
171 * VCC_MMC_ENABLE on GPIO13, MMC_WP on GPIO10
172 */
173&sdio0 {
174 vmmc-supply = <&mmc_power>;
175 wp-gpios = <&gpio_ext 10 GPIO_ACTIVE_LOW>;
176 status = "okay";
177};
178
179/* UART0 on RS232 mini-connector */
180&uart0 { status = "okay"; };
181/* UART2 on pin headers */
182&uart2 { status = "okay"; };