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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Device Tree Source for Kamstrup OMNIA Flex Concentrator.
4 *
5 * Copyright (C) 2020 Kamstrup A/S
6 * Author: Bruno Thomsen <bruno.thomsen@gmail.com>
7 */
8
9/dts-v1/;
10
11#include "imx7d-tqma7.dtsi"
12
13/* One I2C device on TQMa7 SoM is not mounted */
14/delete-node/ &ds1339;
15
16/ {
17 model = "Kamstrup OMNIA Flex Concentrator";
18 compatible = "kam,imx7d-flex-concentrator", "fsl,imx7d";
19
20 memory@80000000 {
21 device_type = "memory";
22 /* 1024 MB - TQMa7D board configuration */
23 reg = <0x80000000 0x40000000>;
24 };
25
26 reg_usb_otg2_vbus: regulator-usb-otg2-vbus {
27 compatible = "regulator-fixed";
28 regulator-name = "VBUS_USBOTG2";
29 regulator-min-microvolt = <5000000>;
30 regulator-max-microvolt = <5000000>;
31 gpio = <&gpio1 7 GPIO_ACTIVE_HIGH>;
32 enable-active-high;
33 };
34
35 reg_vref_1v8: regulator-vref-1v8 {
36 compatible = "regulator-fixed";
37 regulator-name = "VCC1V8_REF";
38 regulator-min-microvolt = <1800000>;
39 regulator-max-microvolt = <1800000>;
40 regulator-always-on;
41 vin-supply = <&sw2_reg>;
42 };
43
44 /*
45 * Human Machine Interface consists of 4 dual red/green LEDs.
46 * hmi-a:green is controlled directly by the switch-mode power supply.
47 * hmi-a:red is not used.
48 */
49 gpio-leds {
50 compatible = "gpio-leds";
51 pinctrl-names = "default";
52 pinctrl-0 = <&pinctrl_leds>;
53
54 led-0 {
55 label = "hmi-b:red:heartbeat-degraded";
56 gpios = <&gpio3 6 GPIO_ACTIVE_HIGH>;
57 };
58
59 led-1 {
60 label = "hmi-b:green:heartbeat-running";
61 gpios = <&gpio2 28 GPIO_ACTIVE_HIGH>;
62 linux,default-trigger = "heartbeat";
63 };
64
65 led-2 {
66 label = "hmi-c:red:mesh-error";
67 gpios = <&gpio2 29 GPIO_ACTIVE_HIGH>;
68 };
69
70 led-3 {
71 label = "hmi-c:green:mesh-activity";
72 gpios = <&gpio2 30 GPIO_ACTIVE_HIGH>;
73 };
74
75 led-4 {
76 label = "hmi-d:red:omnia-error";
77 gpios = <&gpio2 31 GPIO_ACTIVE_HIGH>;
78 };
79
80 led-5 {
81 label = "hmi-d:green:omnia-activity";
82 gpios = <&gpio4 3 GPIO_ACTIVE_HIGH>;
83 };
84 };
85
86 /*
87 * Errata e10574 board restart workaround.
88 */
89 gpio-restart {
90 pinctrl-names = "default";
91 pinctrl-0 = <&pinctrl_restart>;
92 compatible = "gpio-restart";
93 gpios = <&gpio7 12 GPIO_ACTIVE_LOW>;
94 priority = <200>;
95 };
96};
97
98/*
99 * Analog signals
100 * ADC1_IN0: SMPS - 5V output monitor (voltage divider: 1/0.2806)
101 */
102&adc1 {
103 vref-supply = <®_vref_1v8>;
104 status = "okay";
105};
106
107&ecspi2 {
108 pinctrl-names = "default";
109 pinctrl-0 = <&pinctrl_ecspi2>;
110 num-chipselects = <1>;
111 cs-gpios = <&gpio4 23 GPIO_ACTIVE_LOW>;
112 status = "okay";
113
114 pcf2127: rtc@0 {
115 compatible = "nxp,pcf2127";
116 reg = <0>;
117 spi-max-frequency = <2000000>;
118 reset-source;
119 };
120};
121
122&ecspi4 {
123 pinctrl-names = "default";
124 pinctrl-0 = <&pinctrl_ecspi4>;
125 num-chipselects = <1>;
126 cs-gpios = <&gpio3 3 GPIO_ACTIVE_LOW>;
127 status = "okay";
128
129 /*
130 * ST chip maximum SPI clock frequency is 33 MHz.
131 *
132 * TCG specification - Section 6.4.1 Clocking:
133 * TPM shall support a SPI clock frequency range of 10-24 MHz.
134 */
135 st33htph: tpm-tis@0 {
136 compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi";
137 reg = <0>;
138 spi-max-frequency = <24000000>;
139 };
140};
141
142&fec1 {
143 pinctrl-names = "default";
144 pinctrl-0 = <&pinctrl_enet1>;
145 phy-mode = "rmii";
146 phy-handle = <ðphy>;
147 status = "okay";
148
149 /*
150 * MDIO bus reset is used to generate PHY device reset before
151 * Ethernet PHY type ID auto-detection. Otherwise this communication
152 * fails as device does not answer when recommended reset circuit
153 * is used.
154 */
155 mdio {
156 #address-cells = <1>;
157 #size-cells = <0>;
158
159 reset-delay-us = <100000>;
160 reset-post-delay-us = <500000>;
161 reset-gpios = <&gpio7 15 GPIO_ACTIVE_LOW>;
162
163 /* Microchip/Micrel KSZ8081RNB */
164 ethphy: ethernet-phy@1 {
165 compatible = "ethernet-phy-ieee802.3-c22";
166 interrupt-parent = <&gpio1>;
167 interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
168 reg = <1>;
169 };
170 };
171};
172
173/*
174 * Detection signals for internal USB modules.
175 * Used for robust USB plug and play handling such as USB downstream port
176 * power-cycle and USB hub reset in case of misbehaving or crashed modules.
177 *
178 * SMPS - AC input monitor based on zero crossing.
179 * Used for last gasp notification.
180 */
181&gpio3 {
182 gpio-line-names = "", "", "", "", "", "", "", "",
183 "", "", "", "", "smps-ac-monitor", "", "usb-hub-reset", "",
184 "", "", "", "", "", "", "", "",
185 "", "module-b-detection", "", "module-a-detection", "", "", "", "";
186};
187
188/*
189 * Tamper IRQ trigger timestamp reading.
190 * Used for sealed cover opened/closed notification.
191 */
192&gpio5 {
193 gpio-line-names = "", "", "", "", "", "", "", "",
194 "", "", "", "", "rtc-tamper-irq", "", "", "",
195 "", "", "", "", "", "", "", "",
196 "", "", "", "", "", "", "", "";
197};
198
199&iomuxc {
200 pinctrl-names = "default";
201 pinctrl-0 = <&pinctrl_misc>;
202
203 pinctrl_ecspi2: ecspi2grp {
204 fsl,pins = <
205 MX7D_PAD_ECSPI2_MISO__ECSPI2_MISO 0x7c /* X2-15 */
206 MX7D_PAD_ECSPI2_MOSI__ECSPI2_MOSI 0x74 /* X2-18 */
207 MX7D_PAD_ECSPI2_SCLK__ECSPI2_SCLK 0x74 /* X2-13 */
208 MX7D_PAD_ECSPI2_SS0__GPIO4_IO23 0x74 /* X2-20 */
209 /* RTC - Tamper IRQ */
210 MX7D_PAD_SD2_CLK__GPIO5_IO12 0x3c /* X1-92 */
211 >;
212 };
213
214 pinctrl_ecspi4: ecspi4grp {
215 fsl,pins = <
216 MX7D_PAD_LCD_CLK__ECSPI4_MISO 0x7c /* X2-72 */
217 MX7D_PAD_LCD_ENABLE__ECSPI4_MOSI 0x74 /* X2-68 */
218 MX7D_PAD_LCD_HSYNC__ECSPI4_SCLK 0x74 /* X2-76 */
219 MX7D_PAD_LCD_VSYNC__GPIO3_IO3 0x74 /* X2-78 */
220 >;
221 };
222
223 pinctrl_enet1: enet1grp {
224 fsl,pins = <
225 MX7D_PAD_GPIO1_IO10__ENET1_MDIO 0x03 /* X2-48 */
226 MX7D_PAD_GPIO1_IO11__ENET1_MDC 0x03 /* X2-46 */
227 MX7D_PAD_ENET1_RGMII_TD0__ENET1_RGMII_TD0 0x71 /* X2-53 */
228 MX7D_PAD_ENET1_RGMII_TD1__ENET1_RGMII_TD1 0x71 /* X2-55 */
229 MX7D_PAD_ENET1_RGMII_TX_CTL__ENET1_RGMII_TX_CTL 0x71 /* X2-61 */
230 MX7D_PAD_ENET1_RGMII_RD0__ENET1_RGMII_RD0 0x79 /* X2-56 */
231 MX7D_PAD_ENET1_RGMII_RD1__ENET1_RGMII_RD1 0x79 /* X2-58 */
232 MX7D_PAD_ENET1_RGMII_RX_CTL__ENET1_RGMII_RX_CTL 0x79 /* X2-64 */
233 MX7D_PAD_ENET1_RGMII_RXC__ENET1_RX_ER 0x73 /* X2-52 */
234 /* PHY reset: SRE_FAST, DSE_X1 */
235 MX7D_PAD_ENET1_COL__GPIO7_IO15 0x00 /* X1-96 */
236 /* Clock from PHY to MAC: 100kPU */
237 MX7D_PAD_GPIO1_IO12__CCM_ENET_REF_CLK1 0x70 /* X3-4 */
238 /* PHY interrupt: 100kPU, HYS */
239 MX7D_PAD_GPIO1_IO09__GPIO1_IO9 0x78 /* X1-80 */
240 >;
241 };
242
243 pinctrl_leds: ledsgrp {
244 fsl,pins = <
245 MX7D_PAD_LCD_DATA01__GPIO3_IO6 0x14 /* X2-82 */
246 MX7D_PAD_EPDC_BDR0__GPIO2_IO28 0x14 /* X1-82 */
247 MX7D_PAD_EPDC_BDR1__GPIO2_IO29 0x14 /* X1-84 */
248 MX7D_PAD_EPDC_PWR_COM__GPIO2_IO30 0x14 /* X1-86 */
249 MX7D_PAD_EPDC_PWR_STAT__GPIO2_IO31 0x14 /* X1-88 */
250 MX7D_PAD_UART2_TX_DATA__GPIO4_IO3 0x14 /* X1-90 */
251 >;
252 };
253
254 pinctrl_misc: miscgrp {
255 fsl,pins = <
256 /* Module A detection (low = present) */
257 MX7D_PAD_LCD_DATA22__GPIO3_IO27 0x7c /* X2-105 */
258 /* Module B detection (low = present) */
259 MX7D_PAD_LCD_DATA20__GPIO3_IO25 0x7c /* X2-103 */
260 /* SMPS - AC input monitor (high = failure) */
261 MX7D_PAD_LCD_DATA07__GPIO3_IO12 0x7c /* X2-88 */
262 /* USB - Hub reset */
263 MX7D_PAD_LCD_DATA09__GPIO3_IO14 0x74 /* X2-92 */
264 >;
265 };
266
267 pinctrl_restart: restartgrp {
268 fsl,pins = <
269 MX7D_PAD_ENET1_TX_CLK__GPIO7_IO12 0x74 /* X1-94 */
270 >;
271 };
272
273 pinctrl_uart4: uart4grp {
274 fsl,pins = <
275 MX7D_PAD_SAI2_TX_SYNC__UART4_DCE_RX 0x7e /* X3-14 */
276 MX7D_PAD_SAI2_TX_BCLK__UART4_DCE_TX 0x76 /* X3-16 */
277 >;
278 };
279};
280
281&iomuxc_lpsr {
282 pinctrl_usbotg2: usbotg2grp {
283 fsl,pins = <
284 MX7D_PAD_LPSR_GPIO1_IO06__USB_OTG2_OC 0x5c /* X3-11 */
285 MX7D_PAD_LPSR_GPIO1_IO07__GPIO1_IO7 0x59 /* X3-9 */
286 >;
287 };
288
289};
290
291&uart4 {
292 pinctrl-names = "default";
293 pinctrl-0 = <&pinctrl_uart4>;
294 assigned-clocks = <&clks IMX7D_UART4_ROOT_SRC>;
295 assigned-clock-parents = <&clks IMX7D_OSC_24M_CLK>;
296};
297
298&usbotg2 {
299 pinctrl-names = "default";
300 pinctrl-0 = <&pinctrl_usbotg2>;
301 vbus-supply = <®_usb_otg2_vbus>;
302 srp-disable;
303 hnp-disable;
304 adp-disable;
305 over-current-active-low;
306 dr_mode = "host";
307 status = "okay";
308};
309
310/*
311 * External watchdog feature provided by pcf2127.
312 */
313&wdog1 {
314 status = "disabled";
315};