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board-gsia18s.c
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1 /*
2  * Copyright (C) 2010 Christian Glindkamp <[email protected]>
3  * taskit GmbH
4  * 2010 Igor Plyatov <[email protected]>
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/at91_aic.h>
35 #include <mach/at91sam9_smc.h>
36 #include <mach/gsia18s.h>
37 #include <mach/stamp9g20.h>
38 
39 #include "sam9_smc.h"
40 #include "generic.h"
41 
42 static void __init gsia18s_init_early(void)
43 {
44  stamp9g20_init_early();
45 }
46 
47 /*
48  * Two USB Host ports
49  */
50 static struct at91_usbh_data __initdata usbh_data = {
51  .ports = 2,
52  .vbus_pin = {-EINVAL, -EINVAL},
53  .overcurrent_pin= {-EINVAL, -EINVAL},
54 };
55 
56 /*
57  * USB Device port
58  */
59 static struct at91_udc_data __initdata udc_data = {
60  .vbus_pin = AT91_PIN_PA22,
61  .pullup_pin = -EINVAL, /* pull-up driven by UDC */
62 };
63 
64 /*
65  * MACB Ethernet device
66  */
67 static struct macb_platform_data __initdata macb_data = {
68  .phy_irq_pin = AT91_PIN_PA28,
69  .is_rmii = 1,
70 };
71 
72 /*
73  * LEDs and GPOs
74  */
75 static struct gpio_led gpio_leds[] = {
76  {
77  .name = "gpo:spi1reset",
78  .gpio = AT91_PIN_PC1,
79  .active_low = 0,
80  .default_trigger = "none",
81  .default_state = LEDS_GPIO_DEFSTATE_OFF,
82  },
83  {
84  .name = "gpo:trig_net_out",
85  .gpio = AT91_PIN_PB20,
86  .active_low = 0,
87  .default_trigger = "none",
88  .default_state = LEDS_GPIO_DEFSTATE_OFF,
89  },
90  {
91  .name = "gpo:trig_net_dir",
92  .gpio = AT91_PIN_PB19,
93  .active_low = 0,
94  .default_trigger = "none",
95  .default_state = LEDS_GPIO_DEFSTATE_OFF,
96  },
97  {
98  .name = "gpo:charge_dis",
99  .gpio = AT91_PIN_PC2,
100  .active_low = 0,
101  .default_trigger = "none",
102  .default_state = LEDS_GPIO_DEFSTATE_OFF,
103  },
104  {
105  .name = "led:event",
106  .gpio = AT91_PIN_PB17,
107  .active_low = 1,
108  .default_trigger = "none",
109  .default_state = LEDS_GPIO_DEFSTATE_OFF,
110  },
111  {
112  .name = "led:lan",
113  .gpio = AT91_PIN_PB18,
114  .active_low = 1,
115  .default_trigger = "none",
116  .default_state = LEDS_GPIO_DEFSTATE_OFF,
117  },
118  {
119  .name = "led:error",
120  .gpio = AT91_PIN_PB16,
121  .active_low = 1,
122  .default_trigger = "none",
123  .default_state = LEDS_GPIO_DEFSTATE_ON,
124  }
125 };
126 
127 static struct gpio_led_platform_data gpio_led_info = {
128  .leds = gpio_leds,
129  .num_leds = ARRAY_SIZE(gpio_leds),
130 };
131 
132 static struct platform_device leds = {
133  .name = "leds-gpio",
134  .id = 0,
135  .dev = {
136  .platform_data = &gpio_led_info,
137  }
138 };
139 
140 static void __init gsia18s_leds_init(void)
141 {
142  platform_device_register(&leds);
143 }
144 
145 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
146 static struct gpio_led pcf_gpio_leds1[] = {
147  { /* bit 0 */
148  .name = "gpo:hdc_power",
149  .gpio = PCF_GPIO_HDC_POWER,
150  .active_low = 0,
151  .default_trigger = "none",
152  .default_state = LEDS_GPIO_DEFSTATE_OFF,
153  },
154  { /* bit 1 */
155  .name = "gpo:wifi_setup",
156  .gpio = PCF_GPIO_WIFI_SETUP,
157  .active_low = 1,
158  .default_trigger = "none",
159  .default_state = LEDS_GPIO_DEFSTATE_OFF,
160  },
161  { /* bit 2 */
162  .name = "gpo:wifi_enable",
163  .gpio = PCF_GPIO_WIFI_ENABLE,
164  .active_low = 1,
165  .default_trigger = "none",
166  .default_state = LEDS_GPIO_DEFSTATE_OFF,
167  },
168  { /* bit 3 */
169  .name = "gpo:wifi_reset",
170  .gpio = PCF_GPIO_WIFI_RESET,
171  .active_low = 1,
172  .default_trigger = "none",
173  .default_state = LEDS_GPIO_DEFSTATE_ON,
174  },
175  /* bit 4 used as GPI */
176  { /* bit 5 */
177  .name = "gpo:gps_setup",
178  .gpio = PCF_GPIO_GPS_SETUP,
179  .active_low = 1,
180  .default_trigger = "none",
181  .default_state = LEDS_GPIO_DEFSTATE_OFF,
182  },
183  { /* bit 6 */
184  .name = "gpo:gps_standby",
185  .gpio = PCF_GPIO_GPS_STANDBY,
186  .active_low = 0,
187  .default_trigger = "none",
188  .default_state = LEDS_GPIO_DEFSTATE_ON,
189  },
190  { /* bit 7 */
191  .name = "gpo:gps_power",
192  .gpio = PCF_GPIO_GPS_POWER,
193  .active_low = 0,
194  .default_trigger = "none",
195  .default_state = LEDS_GPIO_DEFSTATE_OFF,
196  }
197 };
198 
199 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
200  .leds = pcf_gpio_leds1,
201  .num_leds = ARRAY_SIZE(pcf_gpio_leds1),
202 };
203 
204 static struct platform_device pcf_leds1 = {
205  .name = "leds-gpio", /* GS_IA18-CB_board */
206  .id = 1,
207  .dev = {
208  .platform_data = &pcf_gpio_led_info1,
209  }
210 };
211 
212 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
213 static struct gpio_led pcf_gpio_leds2[] = {
214  { /* bit 0 */
215  .name = "gpo:alarm_1",
216  .gpio = PCF_GPIO_ALARM1,
217  .active_low = 1,
218  .default_trigger = "none",
219  .default_state = LEDS_GPIO_DEFSTATE_OFF,
220  },
221  { /* bit 1 */
222  .name = "gpo:alarm_2",
223  .gpio = PCF_GPIO_ALARM2,
224  .active_low = 1,
225  .default_trigger = "none",
226  .default_state = LEDS_GPIO_DEFSTATE_OFF,
227  },
228  { /* bit 2 */
229  .name = "gpo:alarm_3",
230  .gpio = PCF_GPIO_ALARM3,
231  .active_low = 1,
232  .default_trigger = "none",
233  .default_state = LEDS_GPIO_DEFSTATE_OFF,
234  },
235  { /* bit 3 */
236  .name = "gpo:alarm_4",
237  .gpio = PCF_GPIO_ALARM4,
238  .active_low = 1,
239  .default_trigger = "none",
240  .default_state = LEDS_GPIO_DEFSTATE_OFF,
241  },
242  /* bits 4, 5, 6 not used */
243  { /* bit 7 */
244  .name = "gpo:alarm_v_relay_on",
245  .gpio = PCF_GPIO_ALARM_V_RELAY_ON,
246  .active_low = 0,
247  .default_trigger = "none",
248  .default_state = LEDS_GPIO_DEFSTATE_OFF,
249  },
250 };
251 
252 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
253  .leds = pcf_gpio_leds2,
254  .num_leds = ARRAY_SIZE(pcf_gpio_leds2),
255 };
256 
257 static struct platform_device pcf_leds2 = {
258  .name = "leds-gpio",
259  .id = 2,
260  .dev = {
261  .platform_data = &pcf_gpio_led_info2,
262  }
263 };
264 
265 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
266 static struct gpio_led pcf_gpio_leds3[] = {
267  { /* bit 0 */
268  .name = "gpo:modem_power",
269  .gpio = PCF_GPIO_MODEM_POWER,
270  .active_low = 1,
271  .default_trigger = "none",
272  .default_state = LEDS_GPIO_DEFSTATE_OFF,
273  },
274  /* bits 1 and 2 not used */
275  { /* bit 3 */
276  .name = "gpo:modem_reset",
277  .gpio = PCF_GPIO_MODEM_RESET,
278  .active_low = 1,
279  .default_trigger = "none",
280  .default_state = LEDS_GPIO_DEFSTATE_ON,
281  },
282  /* bits 4, 5 and 6 not used */
283  { /* bit 7 */
284  .name = "gpo:trx_reset",
285  .gpio = PCF_GPIO_TRX_RESET,
286  .active_low = 1,
287  .default_trigger = "none",
288  .default_state = LEDS_GPIO_DEFSTATE_ON,
289  }
290 };
291 
292 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
293  .leds = pcf_gpio_leds3,
294  .num_leds = ARRAY_SIZE(pcf_gpio_leds3),
295 };
296 
297 static struct platform_device pcf_leds3 = {
298  .name = "leds-gpio",
299  .id = 3,
300  .dev = {
301  .platform_data = &pcf_gpio_led_info3,
302  }
303 };
304 
305 static void __init gsia18s_pcf_leds_init(void)
306 {
307  platform_device_register(&pcf_leds1);
308  platform_device_register(&pcf_leds2);
309  platform_device_register(&pcf_leds3);
310 }
311 
312 /*
313  * SPI busses.
314  */
315 static struct spi_board_info gsia18s_spi_devices[] = {
316  { /* User accessible spi0, cs0 used for communication with MSP RTC */
317  .modalias = "spidev",
318  .bus_num = 0,
319  .chip_select = 0,
320  .max_speed_hz = 580000,
321  .mode = SPI_MODE_1,
322  },
323  { /* User accessible spi1, cs0 used for communication with int. DSP */
324  .modalias = "spidev",
325  .bus_num = 1,
326  .chip_select = 0,
327  .max_speed_hz = 5600000,
328  .mode = SPI_MODE_0,
329  },
330  { /* User accessible spi1, cs1 used for communication with ext. DSP */
331  .modalias = "spidev",
332  .bus_num = 1,
333  .chip_select = 1,
334  .max_speed_hz = 5600000,
335  .mode = SPI_MODE_0,
336  },
337  { /* User accessible spi1, cs2 used for communication with ext. DSP */
338  .modalias = "spidev",
339  .bus_num = 1,
340  .chip_select = 2,
341  .max_speed_hz = 5600000,
342  .mode = SPI_MODE_0,
343  },
344  { /* User accessible spi1, cs3 used for communication with ext. DSP */
345  .modalias = "spidev",
346  .bus_num = 1,
347  .chip_select = 3,
348  .max_speed_hz = 5600000,
349  .mode = SPI_MODE_0,
350  }
351 };
352 
353 /*
354  * GPI Buttons
355  */
356 static struct gpio_keys_button buttons[] = {
357  {
358  .gpio = GPIO_TRIG_NET_IN,
359  .code = BTN_1,
360  .desc = "TRIG_NET_IN",
361  .type = EV_KEY,
362  .active_low = 0,
363  .wakeup = 1,
364  },
365  { /* SW80 on the GS_IA18_S-MN board*/
366  .gpio = GPIO_CARD_UNMOUNT_0,
367  .code = BTN_2,
368  .desc = "Card umount 0",
369  .type = EV_KEY,
370  .active_low = 1,
371  .wakeup = 1,
372  },
373  { /* SW79 on the GS_IA18_S-MN board*/
374  .gpio = GPIO_CARD_UNMOUNT_1,
375  .code = BTN_3,
376  .desc = "Card umount 1",
377  .type = EV_KEY,
378  .active_low = 1,
379  .wakeup = 1,
380  },
381  { /* SW280 on the GS_IA18-CB board*/
382  .gpio = GPIO_KEY_POWER,
383  .code = KEY_POWER,
384  .desc = "Power Off Button",
385  .type = EV_KEY,
386  .active_low = 0,
387  .wakeup = 1,
388  }
389 };
390 
391 static struct gpio_keys_platform_data button_data = {
392  .buttons = buttons,
393  .nbuttons = ARRAY_SIZE(buttons),
394 };
395 
396 static struct platform_device button_device = {
397  .name = "gpio-keys",
398  .id = -1,
399  .num_resources = 0,
400  .dev = {
401  .platform_data = &button_data,
402  }
403 };
404 
405 static void __init gsia18s_add_device_buttons(void)
406 {
407  at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
408  at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
409  at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
410  at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
411  at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
412  at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
413  at91_set_gpio_input(GPIO_KEY_POWER, 0);
414  at91_set_deglitch(GPIO_KEY_POWER, 1);
415 
416  platform_device_register(&button_device);
417 }
418 
419 /*
420  * I2C
421  */
422 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
423  unsigned int ngpio, void *context)
424 {
425  int status;
426 
427  status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
428  if (status < 0) {
429  pr_err("error: can't request GPIO%d\n",
430  gpio + PCF_GPIO_ETH_DETECT);
431  return status;
432  }
433  status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
434  if (status < 0) {
435  pr_err("error: can't setup GPIO%d as input\n",
436  gpio + PCF_GPIO_ETH_DETECT);
437  return status;
438  }
439  status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
440  if (status < 0) {
441  pr_err("error: can't export GPIO%d\n",
442  gpio + PCF_GPIO_ETH_DETECT);
443  return status;
444  }
445  status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
446  if (status < 0) {
447  pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
448  gpio + PCF_GPIO_ETH_DETECT);
449  return status;
450  }
451 
452  return 0;
453 }
454 
455 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
456  unsigned ngpio, void *context)
457 {
458  gpio_free(gpio + PCF_GPIO_ETH_DETECT);
459  return 0;
460 }
461 
462 static struct pcf857x_platform_data pcf20_pdata = {
463  .gpio_base = GS_IA18_S_PCF_GPIO_BASE0,
464  .n_latch = (1 << 4),
465  .setup = pcf8574x_0x20_setup,
466  .teardown = pcf8574x_0x20_teardown,
467 };
468 
469 static struct pcf857x_platform_data pcf22_pdata = {
470  .gpio_base = GS_IA18_S_PCF_GPIO_BASE1,
471 };
472 
473 static struct pcf857x_platform_data pcf24_pdata = {
474  .gpio_base = GS_IA18_S_PCF_GPIO_BASE2,
475 };
476 
477 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
478  { /* U1 on the GS_IA18-CB_V3 board */
479  I2C_BOARD_INFO("pcf8574", 0x20),
480  .platform_data = &pcf20_pdata,
481  },
482  { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
483  I2C_BOARD_INFO("pcf8574", 0x22),
484  .platform_data = &pcf22_pdata,
485  },
486  { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
487  I2C_BOARD_INFO("pcf8574", 0x24),
488  .platform_data = &pcf24_pdata,
489  },
490  { /* U161 on the GS_IA18_S-MN board */
491  I2C_BOARD_INFO("24c1024", 0x50),
492  },
493  { /* U162 on the GS_IA18_S-MN board */
494  I2C_BOARD_INFO("24c01", 0x53),
495  },
496 };
497 
498 /*
499  * Compact Flash
500  */
501 static struct at91_cf_data __initdata gsia18s_cf1_data = {
502  .irq_pin = AT91_PIN_PA27,
503  .det_pin = AT91_PIN_PB30,
504  .vcc_pin = -EINVAL,
505  .rst_pin = AT91_PIN_PB31,
506  .chipselect = 5,
507  .flags = AT91_CF_TRUE_IDE,
508 };
509 
510 /* Power Off by RTC */
511 static void gsia18s_power_off(void)
512 {
513  pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
514  at91_set_gpio_output(AT91_PIN_PA25, 1);
515  /* Spin to death... */
516  while (1)
517  ;
518 }
519 
520 static int __init gsia18s_power_off_init(void)
521 {
522  pm_power_off = gsia18s_power_off;
523  return 0;
524 }
525 
526 /* ---------------------------------------------------------------------------*/
527 
528 static void __init gsia18s_board_init(void)
529 {
530  /*
531  * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
532  * Used for Internal Analog Modem.
533  */
534  at91_register_uart(AT91SAM9260_ID_US0, 1,
535  ATMEL_UART_CTS | ATMEL_UART_RTS |
536  ATMEL_UART_DTR | ATMEL_UART_DSR |
537  ATMEL_UART_DCD | ATMEL_UART_RI);
538  /*
539  * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
540  * Used for GPS or WiFi or Data stream.
541  */
542  at91_register_uart(AT91SAM9260_ID_US1, 2,
543  ATMEL_UART_CTS | ATMEL_UART_RTS);
544  /*
545  * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
546  * Used for External Modem.
547  */
548  at91_register_uart(AT91SAM9260_ID_US2, 3,
549  ATMEL_UART_CTS | ATMEL_UART_RTS);
550  /*
551  * USART3 on ttyS4 (Rx, Tx, RTS).
552  * Used for RS-485.
553  */
554  at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
555 
556  /*
557  * USART4 on ttyS5 (Rx, Tx).
558  * Used for TRX433 Radio Module.
559  */
560  at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
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  .handle_irq = at91_aic_handle_irq,
580  .init_early = gsia18s_init_early,
581  .init_irq = at91_init_irq_default,
582  .init_machine = gsia18s_board_init,
583 MACHINE_END
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