1 /*
2 * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
3 * taskit GmbH
4 * 2010 Igor Plyatov <plyatov@gmail.com>
5 * GeoSIG Ltd
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 #include <linux/platform_device.h>
23 #include <linux/gpio.h>
24 #include <linux/w1-gpio.h>
25 #include <linux/i2c.h>
26 #include <linux/i2c/pcf857x.h>
27 #include <linux/gpio_keys.h>
28 #include <linux/input.h>
29
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32
33 #include <mach/board.h>
34 #include <mach/at91sam9_smc.h>
35 #include <mach/gsia18s.h>
36 #include <mach/stamp9g20.h>
37
38 #include "sam9_smc.h"
39 #include "generic.h"
40
gsia18s_init_early(void)41 static void __init gsia18s_init_early(void)
42 {
43 stamp9g20_init_early();
44
45 /*
46 * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
47 * Used for Internal Analog Modem.
48 */
49 at91_register_uart(AT91SAM9260_ID_US0, 1,
50 ATMEL_UART_CTS | ATMEL_UART_RTS |
51 ATMEL_UART_DTR | ATMEL_UART_DSR |
52 ATMEL_UART_DCD | ATMEL_UART_RI);
53 /*
54 * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
55 * Used for GPS or WiFi or Data stream.
56 */
57 at91_register_uart(AT91SAM9260_ID_US1, 2,
58 ATMEL_UART_CTS | ATMEL_UART_RTS);
59 /*
60 * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
61 * Used for External Modem.
62 */
63 at91_register_uart(AT91SAM9260_ID_US2, 3,
64 ATMEL_UART_CTS | ATMEL_UART_RTS);
65 /*
66 * USART3 on ttyS4 (Rx, Tx, RTS).
67 * Used for RS-485.
68 */
69 at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
70
71 /*
72 * USART4 on ttyS5 (Rx, Tx).
73 * Used for TRX433 Radio Module.
74 */
75 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
76 }
77
78 /*
79 * Two USB Host ports
80 */
81 static struct at91_usbh_data __initdata usbh_data = {
82 .ports = 2,
83 .vbus_pin = {-EINVAL, -EINVAL},
84 .overcurrent_pin= {-EINVAL, -EINVAL},
85 };
86
87 /*
88 * USB Device port
89 */
90 static struct at91_udc_data __initdata udc_data = {
91 .vbus_pin = AT91_PIN_PA22,
92 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
93 };
94
95 /*
96 * MACB Ethernet device
97 */
98 static struct macb_platform_data __initdata macb_data = {
99 .phy_irq_pin = AT91_PIN_PA28,
100 .is_rmii = 1,
101 };
102
103 /*
104 * LEDs and GPOs
105 */
106 static struct gpio_led gpio_leds[] = {
107 {
108 .name = "gpo:spi1reset",
109 .gpio = AT91_PIN_PC1,
110 .active_low = 0,
111 .default_trigger = "none",
112 .default_state = LEDS_GPIO_DEFSTATE_OFF,
113 },
114 {
115 .name = "gpo:trig_net_out",
116 .gpio = AT91_PIN_PB20,
117 .active_low = 0,
118 .default_trigger = "none",
119 .default_state = LEDS_GPIO_DEFSTATE_OFF,
120 },
121 {
122 .name = "gpo:trig_net_dir",
123 .gpio = AT91_PIN_PB19,
124 .active_low = 0,
125 .default_trigger = "none",
126 .default_state = LEDS_GPIO_DEFSTATE_OFF,
127 },
128 {
129 .name = "gpo:charge_dis",
130 .gpio = AT91_PIN_PC2,
131 .active_low = 0,
132 .default_trigger = "none",
133 .default_state = LEDS_GPIO_DEFSTATE_OFF,
134 },
135 {
136 .name = "led:event",
137 .gpio = AT91_PIN_PB17,
138 .active_low = 1,
139 .default_trigger = "none",
140 .default_state = LEDS_GPIO_DEFSTATE_OFF,
141 },
142 {
143 .name = "led:lan",
144 .gpio = AT91_PIN_PB18,
145 .active_low = 1,
146 .default_trigger = "none",
147 .default_state = LEDS_GPIO_DEFSTATE_OFF,
148 },
149 {
150 .name = "led:error",
151 .gpio = AT91_PIN_PB16,
152 .active_low = 1,
153 .default_trigger = "none",
154 .default_state = LEDS_GPIO_DEFSTATE_ON,
155 }
156 };
157
158 static struct gpio_led_platform_data gpio_led_info = {
159 .leds = gpio_leds,
160 .num_leds = ARRAY_SIZE(gpio_leds),
161 };
162
163 static struct platform_device leds = {
164 .name = "leds-gpio",
165 .id = 0,
166 .dev = {
167 .platform_data = &gpio_led_info,
168 }
169 };
170
gsia18s_leds_init(void)171 static void __init gsia18s_leds_init(void)
172 {
173 platform_device_register(&leds);
174 }
175
176 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
177 static struct gpio_led pcf_gpio_leds1[] = {
178 { /* bit 0 */
179 .name = "gpo:hdc_power",
180 .gpio = PCF_GPIO_HDC_POWER,
181 .active_low = 0,
182 .default_trigger = "none",
183 .default_state = LEDS_GPIO_DEFSTATE_OFF,
184 },
185 { /* bit 1 */
186 .name = "gpo:wifi_setup",
187 .gpio = PCF_GPIO_WIFI_SETUP,
188 .active_low = 1,
189 .default_trigger = "none",
190 .default_state = LEDS_GPIO_DEFSTATE_OFF,
191 },
192 { /* bit 2 */
193 .name = "gpo:wifi_enable",
194 .gpio = PCF_GPIO_WIFI_ENABLE,
195 .active_low = 1,
196 .default_trigger = "none",
197 .default_state = LEDS_GPIO_DEFSTATE_OFF,
198 },
199 { /* bit 3 */
200 .name = "gpo:wifi_reset",
201 .gpio = PCF_GPIO_WIFI_RESET,
202 .active_low = 1,
203 .default_trigger = "none",
204 .default_state = LEDS_GPIO_DEFSTATE_ON,
205 },
206 /* bit 4 used as GPI */
207 { /* bit 5 */
208 .name = "gpo:gps_setup",
209 .gpio = PCF_GPIO_GPS_SETUP,
210 .active_low = 1,
211 .default_trigger = "none",
212 .default_state = LEDS_GPIO_DEFSTATE_OFF,
213 },
214 { /* bit 6 */
215 .name = "gpo:gps_standby",
216 .gpio = PCF_GPIO_GPS_STANDBY,
217 .active_low = 0,
218 .default_trigger = "none",
219 .default_state = LEDS_GPIO_DEFSTATE_ON,
220 },
221 { /* bit 7 */
222 .name = "gpo:gps_power",
223 .gpio = PCF_GPIO_GPS_POWER,
224 .active_low = 0,
225 .default_trigger = "none",
226 .default_state = LEDS_GPIO_DEFSTATE_OFF,
227 }
228 };
229
230 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
231 .leds = pcf_gpio_leds1,
232 .num_leds = ARRAY_SIZE(pcf_gpio_leds1),
233 };
234
235 static struct platform_device pcf_leds1 = {
236 .name = "leds-gpio", /* GS_IA18-CB_board */
237 .id = 1,
238 .dev = {
239 .platform_data = &pcf_gpio_led_info1,
240 }
241 };
242
243 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
244 static struct gpio_led pcf_gpio_leds2[] = {
245 { /* bit 0 */
246 .name = "gpo:alarm_1",
247 .gpio = PCF_GPIO_ALARM1,
248 .active_low = 1,
249 .default_trigger = "none",
250 .default_state = LEDS_GPIO_DEFSTATE_OFF,
251 },
252 { /* bit 1 */
253 .name = "gpo:alarm_2",
254 .gpio = PCF_GPIO_ALARM2,
255 .active_low = 1,
256 .default_trigger = "none",
257 .default_state = LEDS_GPIO_DEFSTATE_OFF,
258 },
259 { /* bit 2 */
260 .name = "gpo:alarm_3",
261 .gpio = PCF_GPIO_ALARM3,
262 .active_low = 1,
263 .default_trigger = "none",
264 .default_state = LEDS_GPIO_DEFSTATE_OFF,
265 },
266 { /* bit 3 */
267 .name = "gpo:alarm_4",
268 .gpio = PCF_GPIO_ALARM4,
269 .active_low = 1,
270 .default_trigger = "none",
271 .default_state = LEDS_GPIO_DEFSTATE_OFF,
272 },
273 /* bits 4, 5, 6 not used */
274 { /* bit 7 */
275 .name = "gpo:alarm_v_relay_on",
276 .gpio = PCF_GPIO_ALARM_V_RELAY_ON,
277 .active_low = 0,
278 .default_trigger = "none",
279 .default_state = LEDS_GPIO_DEFSTATE_OFF,
280 },
281 };
282
283 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
284 .leds = pcf_gpio_leds2,
285 .num_leds = ARRAY_SIZE(pcf_gpio_leds2),
286 };
287
288 static struct platform_device pcf_leds2 = {
289 .name = "leds-gpio",
290 .id = 2,
291 .dev = {
292 .platform_data = &pcf_gpio_led_info2,
293 }
294 };
295
296 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
297 static struct gpio_led pcf_gpio_leds3[] = {
298 { /* bit 0 */
299 .name = "gpo:modem_power",
300 .gpio = PCF_GPIO_MODEM_POWER,
301 .active_low = 1,
302 .default_trigger = "none",
303 .default_state = LEDS_GPIO_DEFSTATE_OFF,
304 },
305 /* bits 1 and 2 not used */
306 { /* bit 3 */
307 .name = "gpo:modem_reset",
308 .gpio = PCF_GPIO_MODEM_RESET,
309 .active_low = 1,
310 .default_trigger = "none",
311 .default_state = LEDS_GPIO_DEFSTATE_ON,
312 },
313 /* bits 4, 5 and 6 not used */
314 { /* bit 7 */
315 .name = "gpo:trx_reset",
316 .gpio = PCF_GPIO_TRX_RESET,
317 .active_low = 1,
318 .default_trigger = "none",
319 .default_state = LEDS_GPIO_DEFSTATE_ON,
320 }
321 };
322
323 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
324 .leds = pcf_gpio_leds3,
325 .num_leds = ARRAY_SIZE(pcf_gpio_leds3),
326 };
327
328 static struct platform_device pcf_leds3 = {
329 .name = "leds-gpio",
330 .id = 3,
331 .dev = {
332 .platform_data = &pcf_gpio_led_info3,
333 }
334 };
335
gsia18s_pcf_leds_init(void)336 static void __init gsia18s_pcf_leds_init(void)
337 {
338 platform_device_register(&pcf_leds1);
339 platform_device_register(&pcf_leds2);
340 platform_device_register(&pcf_leds3);
341 }
342
343 /*
344 * SPI busses.
345 */
346 static struct spi_board_info gsia18s_spi_devices[] = {
347 { /* User accessible spi0, cs0 used for communication with MSP RTC */
348 .modalias = "spidev",
349 .bus_num = 0,
350 .chip_select = 0,
351 .max_speed_hz = 580000,
352 .mode = SPI_MODE_1,
353 },
354 { /* User accessible spi1, cs0 used for communication with int. DSP */
355 .modalias = "spidev",
356 .bus_num = 1,
357 .chip_select = 0,
358 .max_speed_hz = 5600000,
359 .mode = SPI_MODE_0,
360 },
361 { /* User accessible spi1, cs1 used for communication with ext. DSP */
362 .modalias = "spidev",
363 .bus_num = 1,
364 .chip_select = 1,
365 .max_speed_hz = 5600000,
366 .mode = SPI_MODE_0,
367 },
368 { /* User accessible spi1, cs2 used for communication with ext. DSP */
369 .modalias = "spidev",
370 .bus_num = 1,
371 .chip_select = 2,
372 .max_speed_hz = 5600000,
373 .mode = SPI_MODE_0,
374 },
375 { /* User accessible spi1, cs3 used for communication with ext. DSP */
376 .modalias = "spidev",
377 .bus_num = 1,
378 .chip_select = 3,
379 .max_speed_hz = 5600000,
380 .mode = SPI_MODE_0,
381 }
382 };
383
384 /*
385 * GPI Buttons
386 */
387 static struct gpio_keys_button buttons[] = {
388 {
389 .gpio = GPIO_TRIG_NET_IN,
390 .code = BTN_1,
391 .desc = "TRIG_NET_IN",
392 .type = EV_KEY,
393 .active_low = 0,
394 .wakeup = 1,
395 },
396 { /* SW80 on the GS_IA18_S-MN board*/
397 .gpio = GPIO_CARD_UNMOUNT_0,
398 .code = BTN_2,
399 .desc = "Card umount 0",
400 .type = EV_KEY,
401 .active_low = 1,
402 .wakeup = 1,
403 },
404 { /* SW79 on the GS_IA18_S-MN board*/
405 .gpio = GPIO_CARD_UNMOUNT_1,
406 .code = BTN_3,
407 .desc = "Card umount 1",
408 .type = EV_KEY,
409 .active_low = 1,
410 .wakeup = 1,
411 },
412 { /* SW280 on the GS_IA18-CB board*/
413 .gpio = GPIO_KEY_POWER,
414 .code = KEY_POWER,
415 .desc = "Power Off Button",
416 .type = EV_KEY,
417 .active_low = 0,
418 .wakeup = 1,
419 }
420 };
421
422 static struct gpio_keys_platform_data button_data = {
423 .buttons = buttons,
424 .nbuttons = ARRAY_SIZE(buttons),
425 };
426
427 static struct platform_device button_device = {
428 .name = "gpio-keys",
429 .id = -1,
430 .num_resources = 0,
431 .dev = {
432 .platform_data = &button_data,
433 }
434 };
435
gsia18s_add_device_buttons(void)436 static void __init gsia18s_add_device_buttons(void)
437 {
438 at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
439 at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
440 at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
441 at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
442 at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
443 at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
444 at91_set_gpio_input(GPIO_KEY_POWER, 0);
445 at91_set_deglitch(GPIO_KEY_POWER, 1);
446
447 platform_device_register(&button_device);
448 }
449
450 /*
451 * I2C
452 */
pcf8574x_0x20_setup(struct i2c_client * client,int gpio,unsigned int ngpio,void * context)453 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
454 unsigned int ngpio, void *context)
455 {
456 int status;
457
458 status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
459 if (status < 0) {
460 pr_err("error: can't request GPIO%d\n",
461 gpio + PCF_GPIO_ETH_DETECT);
462 return status;
463 }
464 status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
465 if (status < 0) {
466 pr_err("error: can't setup GPIO%d as input\n",
467 gpio + PCF_GPIO_ETH_DETECT);
468 return status;
469 }
470 status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
471 if (status < 0) {
472 pr_err("error: can't export GPIO%d\n",
473 gpio + PCF_GPIO_ETH_DETECT);
474 return status;
475 }
476 status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
477 if (status < 0) {
478 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
479 gpio + PCF_GPIO_ETH_DETECT);
480 return status;
481 }
482
483 return 0;
484 }
485
pcf8574x_0x20_teardown(struct i2c_client * client,int gpio,unsigned ngpio,void * context)486 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
487 unsigned ngpio, void *context)
488 {
489 gpio_free(gpio + PCF_GPIO_ETH_DETECT);
490 return 0;
491 }
492
493 static struct pcf857x_platform_data pcf20_pdata = {
494 .gpio_base = GS_IA18_S_PCF_GPIO_BASE0,
495 .n_latch = (1 << 4),
496 .setup = pcf8574x_0x20_setup,
497 .teardown = pcf8574x_0x20_teardown,
498 };
499
500 static struct pcf857x_platform_data pcf22_pdata = {
501 .gpio_base = GS_IA18_S_PCF_GPIO_BASE1,
502 };
503
504 static struct pcf857x_platform_data pcf24_pdata = {
505 .gpio_base = GS_IA18_S_PCF_GPIO_BASE2,
506 };
507
508 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
509 { /* U1 on the GS_IA18-CB_V3 board */
510 I2C_BOARD_INFO("pcf8574", 0x20),
511 .platform_data = &pcf20_pdata,
512 },
513 { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
514 I2C_BOARD_INFO("pcf8574", 0x22),
515 .platform_data = &pcf22_pdata,
516 },
517 { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
518 I2C_BOARD_INFO("pcf8574", 0x24),
519 .platform_data = &pcf24_pdata,
520 },
521 { /* U161 on the GS_IA18_S-MN board */
522 I2C_BOARD_INFO("24c1024", 0x50),
523 },
524 { /* U162 on the GS_IA18_S-MN board */
525 I2C_BOARD_INFO("24c01", 0x53),
526 },
527 };
528
529 /*
530 * Compact Flash
531 */
532 static struct at91_cf_data __initdata gsia18s_cf1_data = {
533 .irq_pin = AT91_PIN_PA27,
534 .det_pin = AT91_PIN_PB30,
535 .vcc_pin = -EINVAL,
536 .rst_pin = AT91_PIN_PB31,
537 .chipselect = 5,
538 .flags = AT91_CF_TRUE_IDE,
539 };
540
541 /* Power Off by RTC */
gsia18s_power_off(void)542 static void gsia18s_power_off(void)
543 {
544 pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
545 at91_set_gpio_output(AT91_PIN_PA25, 1);
546 /* Spin to death... */
547 while (1)
548 ;
549 }
550
gsia18s_power_off_init(void)551 static int __init gsia18s_power_off_init(void)
552 {
553 pm_power_off = gsia18s_power_off;
554 return 0;
555 }
556
557 /* ---------------------------------------------------------------------------*/
558
gsia18s_board_init(void)559 static void __init gsia18s_board_init(void)
560 {
561 stamp9g20_board_init();
562 at91_add_device_usbh(&usbh_data);
563 at91_add_device_udc(&udc_data);
564 at91_add_device_eth(&macb_data);
565 gsia18s_leds_init();
566 gsia18s_pcf_leds_init();
567 gsia18s_add_device_buttons();
568 at91_add_device_i2c(gsia18s_i2c_devices,
569 ARRAY_SIZE(gsia18s_i2c_devices));
570 at91_add_device_cf(&gsia18s_cf1_data);
571 at91_add_device_spi(gsia18s_spi_devices,
572 ARRAY_SIZE(gsia18s_spi_devices));
573 gsia18s_power_off_init();
574 }
575
576 MACHINE_START(GSIA18S, "GS_IA18_S")
577 .timer = &at91sam926x_timer,
578 .map_io = at91_map_io,
579 .init_early = gsia18s_init_early,
580 .init_irq = at91_init_irq_default,
581 .init_machine = gsia18s_board_init,
582 MACHINE_END
583