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_map_io(void)
46 * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
47 * Used for Internal Analog Modem.
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);
54 * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
55 * Used for GPS or WiFi or Data stream.
57 at91_register_uart(AT91SAM9260_ID_US1, 2,
58 ATMEL_UART_CTS | ATMEL_UART_RTS);
60 * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
61 * Used for External Modem.
63 at91_register_uart(AT91SAM9260_ID_US2, 3,
64 ATMEL_UART_CTS | ATMEL_UART_RTS);
66 * USART3 on ttyS4 (Rx, Tx, RTS).
69 at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
72 * USART4 on ttyS5 (Rx, Tx).
73 * Used for TRX433 Radio Module.
75 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
78 static void __init init_irq(void)
80 at91sam9260_init_interrupts(NULL);
86 static struct at91_usbh_data __initdata usbh_data = {
93 static struct at91_udc_data __initdata udc_data = {
94 .vbus_pin = AT91_PIN_PA22,
95 .pullup_pin = 0, /* pull-up driven by UDC */
99 * MACB Ethernet device
101 static struct at91_eth_data __initdata macb_data = {
102 .phy_irq_pin = AT91_PIN_PA28,
109 static struct gpio_led gpio_leds[] = {
111 .name = "gpo:spi1reset",
112 .gpio = AT91_PIN_PC1,
114 .default_trigger = "none",
115 .default_state = LEDS_GPIO_DEFSTATE_OFF,
118 .name = "gpo:trig_net_out",
119 .gpio = AT91_PIN_PB20,
121 .default_trigger = "none",
122 .default_state = LEDS_GPIO_DEFSTATE_OFF,
125 .name = "gpo:trig_net_dir",
126 .gpio = AT91_PIN_PB19,
128 .default_trigger = "none",
129 .default_state = LEDS_GPIO_DEFSTATE_OFF,
132 .name = "gpo:charge_dis",
133 .gpio = AT91_PIN_PC2,
135 .default_trigger = "none",
136 .default_state = LEDS_GPIO_DEFSTATE_OFF,
140 .gpio = AT91_PIN_PB17,
142 .default_trigger = "none",
143 .default_state = LEDS_GPIO_DEFSTATE_OFF,
147 .gpio = AT91_PIN_PB18,
149 .default_trigger = "none",
150 .default_state = LEDS_GPIO_DEFSTATE_OFF,
154 .gpio = AT91_PIN_PB16,
156 .default_trigger = "none",
157 .default_state = LEDS_GPIO_DEFSTATE_ON,
161 static struct gpio_led_platform_data gpio_led_info = {
163 .num_leds = ARRAY_SIZE(gpio_leds),
166 static struct platform_device leds = {
170 .platform_data = &gpio_led_info,
174 static void __init gsia18s_leds_init(void)
176 platform_device_register(&leds);
179 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
180 static struct gpio_led pcf_gpio_leds1[] = {
182 .name = "gpo:hdc_power",
183 .gpio = PCF_GPIO_HDC_POWER,
185 .default_trigger = "none",
186 .default_state = LEDS_GPIO_DEFSTATE_OFF,
189 .name = "gpo:wifi_setup",
190 .gpio = PCF_GPIO_WIFI_SETUP,
192 .default_trigger = "none",
193 .default_state = LEDS_GPIO_DEFSTATE_OFF,
196 .name = "gpo:wifi_enable",
197 .gpio = PCF_GPIO_WIFI_ENABLE,
199 .default_trigger = "none",
200 .default_state = LEDS_GPIO_DEFSTATE_OFF,
203 .name = "gpo:wifi_reset",
204 .gpio = PCF_GPIO_WIFI_RESET,
206 .default_trigger = "none",
207 .default_state = LEDS_GPIO_DEFSTATE_ON,
209 /* bit 4 used as GPI */
211 .name = "gpo:gps_setup",
212 .gpio = PCF_GPIO_GPS_SETUP,
214 .default_trigger = "none",
215 .default_state = LEDS_GPIO_DEFSTATE_OFF,
218 .name = "gpo:gps_standby",
219 .gpio = PCF_GPIO_GPS_STANDBY,
221 .default_trigger = "none",
222 .default_state = LEDS_GPIO_DEFSTATE_ON,
225 .name = "gpo:gps_power",
226 .gpio = PCF_GPIO_GPS_POWER,
228 .default_trigger = "none",
229 .default_state = LEDS_GPIO_DEFSTATE_OFF,
233 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
234 .leds = pcf_gpio_leds1,
235 .num_leds = ARRAY_SIZE(pcf_gpio_leds1),
238 static struct platform_device pcf_leds1 = {
239 .name = "leds-gpio", /* GS_IA18-CB_board */
242 .platform_data = &pcf_gpio_led_info1,
246 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
247 static struct gpio_led pcf_gpio_leds2[] = {
249 .name = "gpo:alarm_1",
250 .gpio = PCF_GPIO_ALARM1,
252 .default_trigger = "none",
253 .default_state = LEDS_GPIO_DEFSTATE_OFF,
256 .name = "gpo:alarm_2",
257 .gpio = PCF_GPIO_ALARM2,
259 .default_trigger = "none",
260 .default_state = LEDS_GPIO_DEFSTATE_OFF,
263 .name = "gpo:alarm_3",
264 .gpio = PCF_GPIO_ALARM3,
266 .default_trigger = "none",
267 .default_state = LEDS_GPIO_DEFSTATE_OFF,
270 .name = "gpo:alarm_4",
271 .gpio = PCF_GPIO_ALARM4,
273 .default_trigger = "none",
274 .default_state = LEDS_GPIO_DEFSTATE_OFF,
276 /* bits 4, 5, 6 not used */
278 .name = "gpo:alarm_v_relay_on",
279 .gpio = PCF_GPIO_ALARM_V_RELAY_ON,
281 .default_trigger = "none",
282 .default_state = LEDS_GPIO_DEFSTATE_OFF,
286 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
287 .leds = pcf_gpio_leds2,
288 .num_leds = ARRAY_SIZE(pcf_gpio_leds2),
291 static struct platform_device pcf_leds2 = {
295 .platform_data = &pcf_gpio_led_info2,
299 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
300 static struct gpio_led pcf_gpio_leds3[] = {
302 .name = "gpo:modem_power",
303 .gpio = PCF_GPIO_MODEM_POWER,
305 .default_trigger = "none",
306 .default_state = LEDS_GPIO_DEFSTATE_OFF,
308 /* bits 1 and 2 not used */
310 .name = "gpo:modem_reset",
311 .gpio = PCF_GPIO_MODEM_RESET,
313 .default_trigger = "none",
314 .default_state = LEDS_GPIO_DEFSTATE_ON,
316 /* bits 4, 5 and 6 not used */
318 .name = "gpo:trx_reset",
319 .gpio = PCF_GPIO_TRX_RESET,
321 .default_trigger = "none",
322 .default_state = LEDS_GPIO_DEFSTATE_ON,
326 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
327 .leds = pcf_gpio_leds3,
328 .num_leds = ARRAY_SIZE(pcf_gpio_leds3),
331 static struct platform_device pcf_leds3 = {
335 .platform_data = &pcf_gpio_led_info3,
339 static void __init gsia18s_pcf_leds_init(void)
341 platform_device_register(&pcf_leds1);
342 platform_device_register(&pcf_leds2);
343 platform_device_register(&pcf_leds3);
349 static struct spi_board_info gsia18s_spi_devices[] = {
350 { /* User accessible spi0, cs0 used for communication with MSP RTC */
351 .modalias = "spidev",
354 .max_speed_hz = 580000,
357 { /* User accessible spi1, cs0 used for communication with int. DSP */
358 .modalias = "spidev",
361 .max_speed_hz = 5600000,
364 { /* User accessible spi1, cs1 used for communication with ext. DSP */
365 .modalias = "spidev",
368 .max_speed_hz = 5600000,
371 { /* User accessible spi1, cs2 used for communication with ext. DSP */
372 .modalias = "spidev",
375 .max_speed_hz = 5600000,
378 { /* User accessible spi1, cs3 used for communication with ext. DSP */
379 .modalias = "spidev",
382 .max_speed_hz = 5600000,
390 static struct gpio_keys_button buttons[] = {
392 .gpio = GPIO_TRIG_NET_IN,
394 .desc = "TRIG_NET_IN",
399 { /* SW80 on the GS_IA18_S-MN board*/
400 .gpio = GPIO_CARD_UNMOUNT_0,
402 .desc = "Card umount 0",
407 { /* SW79 on the GS_IA18_S-MN board*/
408 .gpio = GPIO_CARD_UNMOUNT_1,
410 .desc = "Card umount 1",
415 { /* SW280 on the GS_IA18-CB board*/
416 .gpio = GPIO_KEY_POWER,
418 .desc = "Power Off Button",
425 static struct gpio_keys_platform_data button_data = {
427 .nbuttons = ARRAY_SIZE(buttons),
430 static struct platform_device button_device = {
435 .platform_data = &button_data,
439 static void __init gsia18s_add_device_buttons(void)
441 at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
442 at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
443 at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
444 at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
445 at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
446 at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
447 at91_set_gpio_input(GPIO_KEY_POWER, 0);
448 at91_set_deglitch(GPIO_KEY_POWER, 1);
450 platform_device_register(&button_device);
456 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
457 unsigned int ngpio, void *context)
461 status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
463 pr_err("error: can't request GPIO%d\n",
464 gpio + PCF_GPIO_ETH_DETECT);
467 status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
469 pr_err("error: can't setup GPIO%d as input\n",
470 gpio + PCF_GPIO_ETH_DETECT);
473 status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
475 pr_err("error: can't export GPIO%d\n",
476 gpio + PCF_GPIO_ETH_DETECT);
479 status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
481 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
482 gpio + PCF_GPIO_ETH_DETECT);
489 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
490 unsigned ngpio, void *context)
492 gpio_free(gpio + PCF_GPIO_ETH_DETECT);
496 static struct pcf857x_platform_data pcf20_pdata = {
497 .gpio_base = GS_IA18_S_PCF_GPIO_BASE0,
499 .setup = pcf8574x_0x20_setup,
500 .teardown = pcf8574x_0x20_teardown,
503 static struct pcf857x_platform_data pcf22_pdata = {
504 .gpio_base = GS_IA18_S_PCF_GPIO_BASE1,
507 static struct pcf857x_platform_data pcf24_pdata = {
508 .gpio_base = GS_IA18_S_PCF_GPIO_BASE2,
511 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
512 { /* U1 on the GS_IA18-CB_V3 board */
513 I2C_BOARD_INFO("pcf8574", 0x20),
514 .platform_data = &pcf20_pdata,
516 { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
517 I2C_BOARD_INFO("pcf8574", 0x22),
518 .platform_data = &pcf22_pdata,
520 { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
521 I2C_BOARD_INFO("pcf8574", 0x24),
522 .platform_data = &pcf24_pdata,
524 { /* U161 on the GS_IA18_S-MN board */
525 I2C_BOARD_INFO("24c1024", 0x50),
527 { /* U162 on the GS_IA18_S-MN board */
528 I2C_BOARD_INFO("24c01", 0x53),
535 static struct at91_cf_data __initdata gsia18s_cf1_data = {
536 .irq_pin = AT91_PIN_PA27,
537 .det_pin = AT91_PIN_PB30,
538 .rst_pin = AT91_PIN_PB31,
540 .flags = AT91_CF_TRUE_IDE,
543 /* Power Off by RTC */
544 static void gsia18s_power_off(void)
546 pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
547 at91_set_gpio_output(AT91_PIN_PA25, 1);
548 /* Spin to death... */
553 static int __init gsia18s_power_off_init(void)
555 pm_power_off = gsia18s_power_off;
559 /* ---------------------------------------------------------------------------*/
561 static void __init gsia18s_board_init(void)
563 stamp9g20_board_init();
564 at91_add_device_usbh(&usbh_data);
565 at91_add_device_udc(&udc_data);
566 at91_add_device_eth(&macb_data);
568 gsia18s_pcf_leds_init();
569 gsia18s_add_device_buttons();
570 at91_add_device_i2c(gsia18s_i2c_devices,
571 ARRAY_SIZE(gsia18s_i2c_devices));
572 at91_add_device_cf(&gsia18s_cf1_data);
573 at91_add_device_spi(gsia18s_spi_devices,
574 ARRAY_SIZE(gsia18s_spi_devices));
575 gsia18s_power_off_init();
578 MACHINE_START(GSIA18S, "GS_IA18_S")
579 .boot_params = AT91_SDRAM_BASE + 0x100,
580 .timer = &at91sam926x_timer,
581 .map_io = gsia18s_map_io,
582 .init_irq = init_irq,
583 .init_machine = gsia18s_board_init,