1 /*
2 * Copyright (C) 2013,2014 Russell King
3 *
4 * This file is dual-licensed: you can use it either under the terms
5 * of the GPL or the X11 license, at your option. Note that this dual
6 * licensing only applies to this file, and not this project as a
7 * whole.
8 *
9 * a) This file is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This file is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * Or, alternatively,
19 *
20 * b) Permission is hereby granted, free of charge, to any person
21 * obtaining a copy of this software and associated documentation
22 * files (the "Software"), to deal in the Software without
23 * restriction, including without limitation the rights to use,
24 * copy, modify, merge, publish, distribute, sublicense, and/or
25 * sell copies of the Software, and to permit persons to whom the
26 * Software is furnished to do so, subject to the following
27 * conditions:
28 *
29 * The above copyright notice and this permission notice shall be
30 * included in all copies or substantial portions of the Software.
31 *
32 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
33 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
34 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
35 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
36 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
37 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
38 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
39 * OTHER DEALINGS IN THE SOFTWARE.
40 */
41 #include <dt-bindings/gpio/gpio.h>
42
43 / {
44 nvcc_sd1: regulator-nvcc-sd1 {
45 compatible = "regulator-fixed";
46 regulator-always-on;
47 regulator-name = "nvcc_sd1";
48 regulator-min-microvolt = <1800000>;
49 regulator-max-microvolt = <1800000>;
50 vin-supply = <&vcc_3v3>;
51 };
52
53 clk_ti_wifi: ti-wifi-clock {
54 /* This is a hack around the kernel - using "fixed clock"
55 * results in the "pinctrl" properties being ignored, and
56 * the clock not being output. Instead, use a gated clock
57 * and the unrouted WL_XTAL_PU gpio.
58 */
59 compatible = "gpio-gate-clock";
60 #clock-cells = <0>;
61 clock-frequency = <32768>;
62 pinctrl-names = "default";
63 pinctrl-0 = <&pinctrl_microsom_ti_clk>;
64 enable-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH>;
65 };
66
67 pwrseq_ti_wifi: ti-wifi-pwrseq {
68 compatible = "mmc-pwrseq-simple";
69 pinctrl-names = "default";
70 pinctrl-0 = <&pinctrl_microsom_ti_wifi_en>;
71 reset-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>;
72 post-power-on-delay-ms = <200>;
73 clocks = <&clk_ti_wifi>;
74 clock-names = "ext_clock";
75 };
76 };
77
78 &iomuxc {
79 microsom {
80 pinctrl_microsom_ti_bt: microsom-ti-bt {
81 fsl,pins = <
82 /* BT_EN_SOC */
83 MX6QDL_PAD_CSI0_DAT14__GPIO6_IO00 0x40013070
84 >;
85 };
86
87 pinctrl_microsom_ti_clk: microsom-ti-clk {
88 fsl,pins = <
89 /* EXT_32K */
90 MX6QDL_PAD_GPIO_8__XTALOSC_REF_CLK_32K 0x1b0b0
91 /* WL_XTAL_PU (unrouted) */
92 MX6QDL_PAD_DISP0_DAT11__GPIO5_IO05 0x40013070
93 >;
94 };
95
96 pinctrl_microsom_ti_wifi_en: microsom-ti-wifi-en {
97 fsl,pins = <
98 /* WLAN_EN_SOC */
99 MX6QDL_PAD_CSI0_DAT8__GPIO5_IO26 0x40013070
100 >;
101 };
102
103 pinctrl_microsom_ti_wifi_irq: microsom-ti-wifi-irq {
104 fsl,pins = <
105 /* WLAN_IRQ */
106 MX6QDL_PAD_CSI0_DAT18__GPIO6_IO04 0x40013070
107 >;
108 };
109
110 pinctrl_microsom_uart4: microsom-uart4 {
111 fsl,pins = <
112 MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA 0x1b0b1
113 MX6QDL_PAD_CSI0_DAT13__UART4_RX_DATA 0x1b0b1
114 MX6QDL_PAD_CSI0_DAT16__UART4_RTS_B 0x1b0b1
115 MX6QDL_PAD_CSI0_DAT17__UART4_CTS_B 0x1b0b1
116 >;
117 };
118
119 pinctrl_microsom_usdhc1: microsom-usdhc1 {
120 fsl,pins = <
121 MX6QDL_PAD_SD1_CMD__SD1_CMD 0x17059
122 MX6QDL_PAD_SD1_CLK__SD1_CLK 0x10059
123 MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17059
124 MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17059
125 MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17059
126 MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17059
127 >;
128 };
129 };
130 };
131
132 /* UART4 - Connected to optional TI Wi-Fi/BT/FM */
133 &uart4 {
134 pinctrl-names = "default";
135 pinctrl-0 = <&pinctrl_microsom_uart4>;
136 uart-has-rtscts;
137 status = "okay";
138
139 bluetooth {
140 compatible = "ti,wl1837-st";
141 clocks = <&clk_ti_wifi>;
142 clock-names = "ext_clock";
143 enable-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>;
144 pinctrl-names = "default";
145 pinctrl-0 = <&pinctrl_microsom_ti_bt>;
146 };
147 };
148
149 /* USDHC1 - Connected to optional TI Wi-Fi/BT/FM */
150 &usdhc1 {
151 pinctrl-names = "default";
152 pinctrl-0 = <&pinctrl_microsom_usdhc1>;
153 bus-width = <4>;
154 keep-power-in-suspend;
155 mmc-pwrseq = <&pwrseq_ti_wifi>;
156 cap-power-off-card;
157 non-removable;
158 vmmc-supply = <&vcc_3v3>;
159 /* vqmmc-supply = <&nvcc_sd1>; - MMC layer doesn't like it! */
160 status = "okay";
161 #address-cells = <1>;
162 #size-cells = <0>;
163
164 wlcore@2 {
165 compatible = "ti,wl1837";
166 reg = <2>;
167 interrupts-extended = <&gpio6 4 IRQ_TYPE_LEVEL_HIGH>;
168 pinctrl-names = "default";
169 pinctrl-0 = <&pinctrl_microsom_ti_wifi_irq>;
170 };
171 };
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