2 * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
4 * 2010 Igor Plyatov <plyatov@gmail.com>
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.
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.
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
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>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
33 #include <mach/board.h>
34 #include <mach/at91sam9_smc.h>
35 #include <mach/gsia18s.h>
36 #include <mach/stamp9g20.h>
41 static void __init gsia18s_init_early(void)
43 stamp9g20_init_early();
49 static struct at91_usbh_data __initdata usbh_data = {
51 .vbus_pin = {-EINVAL, -EINVAL},
52 .overcurrent_pin= {-EINVAL, -EINVAL},
58 static struct at91_udc_data __initdata udc_data = {
59 .vbus_pin = AT91_PIN_PA22,
60 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
64 * MACB Ethernet device
66 static struct macb_platform_data __initdata macb_data = {
67 .phy_irq_pin = AT91_PIN_PA28,
74 static struct gpio_led gpio_leds[] = {
76 .name = "gpo:spi1reset",
79 .default_trigger = "none",
80 .default_state = LEDS_GPIO_DEFSTATE_OFF,
83 .name = "gpo:trig_net_out",
84 .gpio = AT91_PIN_PB20,
86 .default_trigger = "none",
87 .default_state = LEDS_GPIO_DEFSTATE_OFF,
90 .name = "gpo:trig_net_dir",
91 .gpio = AT91_PIN_PB19,
93 .default_trigger = "none",
94 .default_state = LEDS_GPIO_DEFSTATE_OFF,
97 .name = "gpo:charge_dis",
100 .default_trigger = "none",
101 .default_state = LEDS_GPIO_DEFSTATE_OFF,
105 .gpio = AT91_PIN_PB17,
107 .default_trigger = "none",
108 .default_state = LEDS_GPIO_DEFSTATE_OFF,
112 .gpio = AT91_PIN_PB18,
114 .default_trigger = "none",
115 .default_state = LEDS_GPIO_DEFSTATE_OFF,
119 .gpio = AT91_PIN_PB16,
121 .default_trigger = "none",
122 .default_state = LEDS_GPIO_DEFSTATE_ON,
126 static struct gpio_led_platform_data gpio_led_info = {
128 .num_leds = ARRAY_SIZE(gpio_leds),
131 static struct platform_device leds = {
135 .platform_data = &gpio_led_info,
139 static void __init gsia18s_leds_init(void)
141 platform_device_register(&leds);
144 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
145 static struct gpio_led pcf_gpio_leds1[] = {
147 .name = "gpo:hdc_power",
148 .gpio = PCF_GPIO_HDC_POWER,
150 .default_trigger = "none",
151 .default_state = LEDS_GPIO_DEFSTATE_OFF,
154 .name = "gpo:wifi_setup",
155 .gpio = PCF_GPIO_WIFI_SETUP,
157 .default_trigger = "none",
158 .default_state = LEDS_GPIO_DEFSTATE_OFF,
161 .name = "gpo:wifi_enable",
162 .gpio = PCF_GPIO_WIFI_ENABLE,
164 .default_trigger = "none",
165 .default_state = LEDS_GPIO_DEFSTATE_OFF,
168 .name = "gpo:wifi_reset",
169 .gpio = PCF_GPIO_WIFI_RESET,
171 .default_trigger = "none",
172 .default_state = LEDS_GPIO_DEFSTATE_ON,
174 /* bit 4 used as GPI */
176 .name = "gpo:gps_setup",
177 .gpio = PCF_GPIO_GPS_SETUP,
179 .default_trigger = "none",
180 .default_state = LEDS_GPIO_DEFSTATE_OFF,
183 .name = "gpo:gps_standby",
184 .gpio = PCF_GPIO_GPS_STANDBY,
186 .default_trigger = "none",
187 .default_state = LEDS_GPIO_DEFSTATE_ON,
190 .name = "gpo:gps_power",
191 .gpio = PCF_GPIO_GPS_POWER,
193 .default_trigger = "none",
194 .default_state = LEDS_GPIO_DEFSTATE_OFF,
198 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
199 .leds = pcf_gpio_leds1,
200 .num_leds = ARRAY_SIZE(pcf_gpio_leds1),
203 static struct platform_device pcf_leds1 = {
204 .name = "leds-gpio", /* GS_IA18-CB_board */
207 .platform_data = &pcf_gpio_led_info1,
211 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
212 static struct gpio_led pcf_gpio_leds2[] = {
214 .name = "gpo:alarm_1",
215 .gpio = PCF_GPIO_ALARM1,
217 .default_trigger = "none",
218 .default_state = LEDS_GPIO_DEFSTATE_OFF,
221 .name = "gpo:alarm_2",
222 .gpio = PCF_GPIO_ALARM2,
224 .default_trigger = "none",
225 .default_state = LEDS_GPIO_DEFSTATE_OFF,
228 .name = "gpo:alarm_3",
229 .gpio = PCF_GPIO_ALARM3,
231 .default_trigger = "none",
232 .default_state = LEDS_GPIO_DEFSTATE_OFF,
235 .name = "gpo:alarm_4",
236 .gpio = PCF_GPIO_ALARM4,
238 .default_trigger = "none",
239 .default_state = LEDS_GPIO_DEFSTATE_OFF,
241 /* bits 4, 5, 6 not used */
243 .name = "gpo:alarm_v_relay_on",
244 .gpio = PCF_GPIO_ALARM_V_RELAY_ON,
246 .default_trigger = "none",
247 .default_state = LEDS_GPIO_DEFSTATE_OFF,
251 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
252 .leds = pcf_gpio_leds2,
253 .num_leds = ARRAY_SIZE(pcf_gpio_leds2),
256 static struct platform_device pcf_leds2 = {
260 .platform_data = &pcf_gpio_led_info2,
264 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
265 static struct gpio_led pcf_gpio_leds3[] = {
267 .name = "gpo:modem_power",
268 .gpio = PCF_GPIO_MODEM_POWER,
270 .default_trigger = "none",
271 .default_state = LEDS_GPIO_DEFSTATE_OFF,
273 /* bits 1 and 2 not used */
275 .name = "gpo:modem_reset",
276 .gpio = PCF_GPIO_MODEM_RESET,
278 .default_trigger = "none",
279 .default_state = LEDS_GPIO_DEFSTATE_ON,
281 /* bits 4, 5 and 6 not used */
283 .name = "gpo:trx_reset",
284 .gpio = PCF_GPIO_TRX_RESET,
286 .default_trigger = "none",
287 .default_state = LEDS_GPIO_DEFSTATE_ON,
291 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
292 .leds = pcf_gpio_leds3,
293 .num_leds = ARRAY_SIZE(pcf_gpio_leds3),
296 static struct platform_device pcf_leds3 = {
300 .platform_data = &pcf_gpio_led_info3,
304 static void __init gsia18s_pcf_leds_init(void)
306 platform_device_register(&pcf_leds1);
307 platform_device_register(&pcf_leds2);
308 platform_device_register(&pcf_leds3);
314 static struct spi_board_info gsia18s_spi_devices[] = {
315 { /* User accessible spi0, cs0 used for communication with MSP RTC */
316 .modalias = "spidev",
319 .max_speed_hz = 580000,
322 { /* User accessible spi1, cs0 used for communication with int. DSP */
323 .modalias = "spidev",
326 .max_speed_hz = 5600000,
329 { /* User accessible spi1, cs1 used for communication with ext. DSP */
330 .modalias = "spidev",
333 .max_speed_hz = 5600000,
336 { /* User accessible spi1, cs2 used for communication with ext. DSP */
337 .modalias = "spidev",
340 .max_speed_hz = 5600000,
343 { /* User accessible spi1, cs3 used for communication with ext. DSP */
344 .modalias = "spidev",
347 .max_speed_hz = 5600000,
355 static struct gpio_keys_button buttons[] = {
357 .gpio = GPIO_TRIG_NET_IN,
359 .desc = "TRIG_NET_IN",
364 { /* SW80 on the GS_IA18_S-MN board*/
365 .gpio = GPIO_CARD_UNMOUNT_0,
367 .desc = "Card umount 0",
372 { /* SW79 on the GS_IA18_S-MN board*/
373 .gpio = GPIO_CARD_UNMOUNT_1,
375 .desc = "Card umount 1",
380 { /* SW280 on the GS_IA18-CB board*/
381 .gpio = GPIO_KEY_POWER,
383 .desc = "Power Off Button",
390 static struct gpio_keys_platform_data button_data = {
392 .nbuttons = ARRAY_SIZE(buttons),
395 static struct platform_device button_device = {
400 .platform_data = &button_data,
404 static void __init gsia18s_add_device_buttons(void)
406 at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
407 at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
408 at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
409 at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
410 at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
411 at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
412 at91_set_gpio_input(GPIO_KEY_POWER, 0);
413 at91_set_deglitch(GPIO_KEY_POWER, 1);
415 platform_device_register(&button_device);
421 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
422 unsigned int ngpio, void *context)
426 status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
428 pr_err("error: can't request GPIO%d\n",
429 gpio + PCF_GPIO_ETH_DETECT);
432 status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
434 pr_err("error: can't setup GPIO%d as input\n",
435 gpio + PCF_GPIO_ETH_DETECT);
438 status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
440 pr_err("error: can't export GPIO%d\n",
441 gpio + PCF_GPIO_ETH_DETECT);
444 status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
446 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
447 gpio + PCF_GPIO_ETH_DETECT);
454 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
455 unsigned ngpio, void *context)
457 gpio_free(gpio + PCF_GPIO_ETH_DETECT);
461 static struct pcf857x_platform_data pcf20_pdata = {
462 .gpio_base = GS_IA18_S_PCF_GPIO_BASE0,
464 .setup = pcf8574x_0x20_setup,
465 .teardown = pcf8574x_0x20_teardown,
468 static struct pcf857x_platform_data pcf22_pdata = {
469 .gpio_base = GS_IA18_S_PCF_GPIO_BASE1,
472 static struct pcf857x_platform_data pcf24_pdata = {
473 .gpio_base = GS_IA18_S_PCF_GPIO_BASE2,
476 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
477 { /* U1 on the GS_IA18-CB_V3 board */
478 I2C_BOARD_INFO("pcf8574", 0x20),
479 .platform_data = &pcf20_pdata,
481 { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
482 I2C_BOARD_INFO("pcf8574", 0x22),
483 .platform_data = &pcf22_pdata,
485 { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
486 I2C_BOARD_INFO("pcf8574", 0x24),
487 .platform_data = &pcf24_pdata,
489 { /* U161 on the GS_IA18_S-MN board */
490 I2C_BOARD_INFO("24c1024", 0x50),
492 { /* U162 on the GS_IA18_S-MN board */
493 I2C_BOARD_INFO("24c01", 0x53),
500 static struct at91_cf_data __initdata gsia18s_cf1_data = {
501 .irq_pin = AT91_PIN_PA27,
502 .det_pin = AT91_PIN_PB30,
504 .rst_pin = AT91_PIN_PB31,
506 .flags = AT91_CF_TRUE_IDE,
509 /* Power Off by RTC */
510 static void gsia18s_power_off(void)
512 pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
513 at91_set_gpio_output(AT91_PIN_PA25, 1);
514 /* Spin to death... */
519 static int __init gsia18s_power_off_init(void)
521 pm_power_off = gsia18s_power_off;
525 /* ---------------------------------------------------------------------------*/
527 static void __init gsia18s_board_init(void)
530 * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
531 * Used for Internal Analog Modem.
533 at91_register_uart(AT91SAM9260_ID_US0, 1,
534 ATMEL_UART_CTS | ATMEL_UART_RTS |
535 ATMEL_UART_DTR | ATMEL_UART_DSR |
536 ATMEL_UART_DCD | ATMEL_UART_RI);
538 * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
539 * Used for GPS or WiFi or Data stream.
541 at91_register_uart(AT91SAM9260_ID_US1, 2,
542 ATMEL_UART_CTS | ATMEL_UART_RTS);
544 * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
545 * Used for External Modem.
547 at91_register_uart(AT91SAM9260_ID_US2, 3,
548 ATMEL_UART_CTS | ATMEL_UART_RTS);
550 * USART3 on ttyS4 (Rx, Tx, RTS).
553 at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
556 * USART4 on ttyS5 (Rx, Tx).
557 * Used for TRX433 Radio Module.
559 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
560 stamp9g20_board_init();
561 at91_add_device_usbh(&usbh_data);
562 at91_add_device_udc(&udc_data);
563 at91_add_device_eth(&macb_data);
565 gsia18s_pcf_leds_init();
566 gsia18s_add_device_buttons();
567 at91_add_device_i2c(gsia18s_i2c_devices,
568 ARRAY_SIZE(gsia18s_i2c_devices));
569 at91_add_device_cf(&gsia18s_cf1_data);
570 at91_add_device_spi(gsia18s_spi_devices,
571 ARRAY_SIZE(gsia18s_spi_devices));
572 gsia18s_power_off_init();
575 MACHINE_START(GSIA18S, "GS_IA18_S")
576 .timer = &at91sam926x_timer,
577 .map_io = at91_map_io,
578 .init_early = gsia18s_init_early,
579 .init_irq = at91_init_irq_default,
580 .init_machine = gsia18s_board_init,