arch/arm/mach-at91/board-gsia18s.c

   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/at91sam9_smc.h>
  34 #include <mach/hardware.h>
  35
  36 #include "at91_aic.h"
  37 #include "board.h"
  38 #include "sam9_smc.h"
  39 #include "generic.h"
  40 #include "gsia18s.h"
  41 #include "stamp9g20.h"
  42 #include "gpio.h"
  43
  44 static void __init gsia18s_init_early(void)
  45 {
  46         stamp9g20_init_early();
  47 }
  48
  49 /*
  50  * Two USB Host ports
  51  */
  52 static struct at91_usbh_data __initdata usbh_data = {
  53         .ports          = 2,
  54         .vbus_pin       = {-EINVAL, -EINVAL},
  55         .overcurrent_pin= {-EINVAL, -EINVAL},
  56 };
  57
  58 /*
  59  * USB Device port
  60  */
  61 static struct at91_udc_data __initdata udc_data = {
  62         .vbus_pin       = AT91_PIN_PA22,
  63         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  64 };
  65
  66 /*
  67  * MACB Ethernet device
  68  */
  69 static struct macb_platform_data __initdata macb_data = {
  70         .phy_irq_pin    = AT91_PIN_PA28,
  71         .is_rmii        = 1,
  72 };
  73
  74 /*
  75  * LEDs and GPOs
  76  */
  77 static struct gpio_led gpio_leds[] = {
  78         {
  79                 .name                   = "gpo:spi1reset",
  80                 .gpio                   = AT91_PIN_PC1,
  81                 .active_low             = 0,
  82                 .default_trigger        = "none",
  83                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
  84         },
  85         {
  86                 .name                   = "gpo:trig_net_out",
  87                 .gpio                   = AT91_PIN_PB20,
  88                 .active_low             = 0,
  89                 .default_trigger        = "none",
  90                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
  91         },
  92         {
  93                 .name                   = "gpo:trig_net_dir",
  94                 .gpio                   = AT91_PIN_PB19,
  95                 .active_low             = 0,
  96                 .default_trigger        = "none",
  97                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
  98         },
  99         {
 100                 .name                   = "gpo:charge_dis",
 101                 .gpio                   = AT91_PIN_PC2,
 102                 .active_low             = 0,
 103                 .default_trigger        = "none",
 104                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 105         },
 106         {
 107                 .name                   = "led:event",
 108                 .gpio                   = AT91_PIN_PB17,
 109                 .active_low             = 1,
 110                 .default_trigger        = "none",
 111                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 112         },
 113         {
 114                 .name                   = "led:lan",
 115                 .gpio                   = AT91_PIN_PB18,
 116                 .active_low             = 1,
 117                 .default_trigger        = "none",
 118                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 119         },
 120         {
 121                 .name                   = "led:error",
 122                 .gpio                   = AT91_PIN_PB16,
 123                 .active_low             = 1,
 124                 .default_trigger        = "none",
 125                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 126         }
 127 };
 128
 129 static struct gpio_led_platform_data gpio_led_info = {
 130         .leds           = gpio_leds,
 131         .num_leds       = ARRAY_SIZE(gpio_leds),
 132 };
 133
 134 static struct platform_device leds = {
 135         .name   = "leds-gpio",
 136         .id     = 0,
 137         .dev    = {
 138                 .platform_data  = &gpio_led_info,
 139         }
 140 };
 141
 142 static void __init gsia18s_leds_init(void)
 143 {
 144         platform_device_register(&leds);
 145 }
 146
 147 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
 148 static struct gpio_led pcf_gpio_leds1[] = {
 149         { /* bit 0 */
 150                 .name                   = "gpo:hdc_power",
 151                 .gpio                   = PCF_GPIO_HDC_POWER,
 152                 .active_low             = 0,
 153                 .default_trigger        = "none",
 154                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 155         },
 156         { /* bit 1 */
 157                 .name                   = "gpo:wifi_setup",
 158                 .gpio                   = PCF_GPIO_WIFI_SETUP,
 159                 .active_low             = 1,
 160                 .default_trigger        = "none",
 161                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 162         },
 163         { /* bit 2 */
 164                 .name                   = "gpo:wifi_enable",
 165                 .gpio                   = PCF_GPIO_WIFI_ENABLE,
 166                 .active_low             = 1,
 167                 .default_trigger        = "none",
 168                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 169         },
 170         { /* bit 3      */
 171                 .name                   = "gpo:wifi_reset",
 172                 .gpio                   = PCF_GPIO_WIFI_RESET,
 173                 .active_low             = 1,
 174                 .default_trigger        = "none",
 175                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 176         },
 177         /* bit 4 used as GPI    */
 178         { /* bit 5 */
 179                 .name                   = "gpo:gps_setup",
 180                 .gpio                   = PCF_GPIO_GPS_SETUP,
 181                 .active_low             = 1,
 182                 .default_trigger        = "none",
 183                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 184         },
 185         { /* bit 6 */
 186                 .name                   = "gpo:gps_standby",
 187                 .gpio                   = PCF_GPIO_GPS_STANDBY,
 188                 .active_low             = 0,
 189                 .default_trigger        = "none",
 190                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 191         },
 192         { /* bit 7 */
 193                 .name                   = "gpo:gps_power",
 194                 .gpio                   = PCF_GPIO_GPS_POWER,
 195                 .active_low             = 0,
 196                 .default_trigger        = "none",
 197                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 198         }
 199 };
 200
 201 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
 202         .leds           = pcf_gpio_leds1,
 203         .num_leds       = ARRAY_SIZE(pcf_gpio_leds1),
 204 };
 205
 206 static struct platform_device pcf_leds1 = {
 207         .name   = "leds-gpio", /* GS_IA18-CB_board */
 208         .id     = 1,
 209         .dev    = {
 210                 .platform_data  = &pcf_gpio_led_info1,
 211         }
 212 };
 213
 214 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 215 static struct gpio_led pcf_gpio_leds2[] = {
 216         { /* bit 0 */
 217                 .name                   = "gpo:alarm_1",
 218                 .gpio                   = PCF_GPIO_ALARM1,
 219                 .active_low             = 1,
 220                 .default_trigger        = "none",
 221                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 222         },
 223         { /* bit 1 */
 224                 .name                   = "gpo:alarm_2",
 225                 .gpio                   = PCF_GPIO_ALARM2,
 226                 .active_low             = 1,
 227                 .default_trigger        = "none",
 228                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 229         },
 230         { /* bit 2 */
 231                 .name                   = "gpo:alarm_3",
 232                 .gpio                   = PCF_GPIO_ALARM3,
 233                 .active_low             = 1,
 234                 .default_trigger        = "none",
 235                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 236         },
 237         { /* bit 3 */
 238                 .name                   = "gpo:alarm_4",
 239                 .gpio                   = PCF_GPIO_ALARM4,
 240                 .active_low             = 1,
 241                 .default_trigger        = "none",
 242                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 243         },
 244         /* bits 4, 5, 6 not used */
 245         { /* bit 7 */
 246                 .name                   = "gpo:alarm_v_relay_on",
 247                 .gpio                   = PCF_GPIO_ALARM_V_RELAY_ON,
 248                 .active_low             = 0,
 249                 .default_trigger        = "none",
 250                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 251         },
 252 };
 253
 254 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
 255         .leds           = pcf_gpio_leds2,
 256         .num_leds       = ARRAY_SIZE(pcf_gpio_leds2),
 257 };
 258
 259 static struct platform_device pcf_leds2 = {
 260         .name   = "leds-gpio",
 261         .id     = 2,
 262         .dev    = {
 263                 .platform_data  = &pcf_gpio_led_info2,
 264         }
 265 };
 266
 267 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 268 static struct gpio_led pcf_gpio_leds3[] = {
 269         { /* bit 0 */
 270                 .name                   = "gpo:modem_power",
 271                 .gpio                   = PCF_GPIO_MODEM_POWER,
 272                 .active_low             = 1,
 273                 .default_trigger        = "none",
 274                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 275         },
 276                 /* bits 1 and 2 not used */
 277         { /* bit 3 */
 278                 .name                   = "gpo:modem_reset",
 279                 .gpio                   = PCF_GPIO_MODEM_RESET,
 280                 .active_low             = 1,
 281                 .default_trigger        = "none",
 282                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 283         },
 284                 /* bits 4, 5 and 6 not used */
 285         { /* bit 7 */
 286                 .name                   = "gpo:trx_reset",
 287                 .gpio                   = PCF_GPIO_TRX_RESET,
 288                 .active_low             = 1,
 289                 .default_trigger        = "none",
 290                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 291         }
 292 };
 293
 294 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
 295         .leds           = pcf_gpio_leds3,
 296         .num_leds       = ARRAY_SIZE(pcf_gpio_leds3),
 297 };
 298
 299 static struct platform_device pcf_leds3 = {
 300         .name   = "leds-gpio",
 301         .id     = 3,
 302         .dev    = {
 303                 .platform_data  = &pcf_gpio_led_info3,
 304         }
 305 };
 306
 307 static void __init gsia18s_pcf_leds_init(void)
 308 {
 309         platform_device_register(&pcf_leds1);
 310         platform_device_register(&pcf_leds2);
 311         platform_device_register(&pcf_leds3);
 312 }
 313
 314 /*
 315  * SPI busses.
 316  */
 317 static struct spi_board_info gsia18s_spi_devices[] = {
 318         { /* User accessible spi0, cs0 used for communication with MSP RTC */
 319                 .modalias       = "spidev",
 320                 .bus_num        = 0,
 321                 .chip_select    = 0,
 322                 .max_speed_hz   = 580000,
 323                 .mode           = SPI_MODE_1,
 324         },
 325         { /* User accessible spi1, cs0 used for communication with int. DSP */
 326                 .modalias       = "spidev",
 327                 .bus_num        = 1,
 328                 .chip_select    = 0,
 329                 .max_speed_hz   = 5600000,
 330                 .mode           = SPI_MODE_0,
 331         },
 332         { /* User accessible spi1, cs1 used for communication with ext. DSP */
 333                 .modalias       = "spidev",
 334                 .bus_num        = 1,
 335                 .chip_select    = 1,
 336                 .max_speed_hz   = 5600000,
 337                 .mode           = SPI_MODE_0,
 338         },
 339         { /* User accessible spi1, cs2 used for communication with ext. DSP */
 340                 .modalias       = "spidev",
 341                 .bus_num        = 1,
 342                 .chip_select    = 2,
 343                 .max_speed_hz   = 5600000,
 344                 .mode           = SPI_MODE_0,
 345         },
 346         { /* User accessible spi1, cs3 used for communication with ext. DSP */
 347                 .modalias       = "spidev",
 348                 .bus_num        = 1,
 349                 .chip_select    = 3,
 350                 .max_speed_hz   = 5600000,
 351                 .mode           = SPI_MODE_0,
 352         }
 353 };
 354
 355 /*
 356  * GPI Buttons
 357  */
 358 static struct gpio_keys_button buttons[] = {
 359         {
 360                 .gpio           = GPIO_TRIG_NET_IN,
 361                 .code           = BTN_1,
 362                 .desc           = "TRIG_NET_IN",
 363                 .type           = EV_KEY,
 364                 .active_low     = 0,
 365                 .wakeup         = 1,
 366         },
 367         { /* SW80 on the GS_IA18_S-MN board*/
 368                 .gpio           = GPIO_CARD_UNMOUNT_0,
 369                 .code           = BTN_2,
 370                 .desc           = "Card umount 0",
 371                 .type           = EV_KEY,
 372                 .active_low     = 1,
 373                 .wakeup         = 1,
 374         },
 375         { /* SW79 on the GS_IA18_S-MN board*/
 376                 .gpio           = GPIO_CARD_UNMOUNT_1,
 377                 .code           = BTN_3,
 378                 .desc           = "Card umount 1",
 379                 .type           = EV_KEY,
 380                 .active_low     = 1,
 381                 .wakeup         = 1,
 382         },
 383         { /* SW280 on the GS_IA18-CB board*/
 384                 .gpio           = GPIO_KEY_POWER,
 385                 .code           = KEY_POWER,
 386                 .desc           = "Power Off Button",
 387                 .type           = EV_KEY,
 388                 .active_low     = 0,
 389                 .wakeup         = 1,
 390         }
 391 };
 392
 393 static struct gpio_keys_platform_data button_data = {
 394         .buttons        = buttons,
 395         .nbuttons       = ARRAY_SIZE(buttons),
 396 };
 397
 398 static struct platform_device button_device = {
 399         .name           = "gpio-keys",
 400         .id             = -1,
 401         .num_resources  = 0,
 402         .dev            = {
 403                 .platform_data  = &button_data,
 404         }
 405 };
 406
 407 static void __init gsia18s_add_device_buttons(void)
 408 {
 409         at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
 410         at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
 411         at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
 412         at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
 413         at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
 414         at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
 415         at91_set_gpio_input(GPIO_KEY_POWER, 0);
 416         at91_set_deglitch(GPIO_KEY_POWER, 1);
 417
 418         platform_device_register(&button_device);
 419 }
 420
 421 /*
 422  * I2C
 423  */
 424 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
 425                                 unsigned int ngpio, void *context)
 426 {
 427         int status;
 428
 429         status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
 430         if (status < 0) {
 431                 pr_err("error: can't request GPIO%d\n",
 432                         gpio + PCF_GPIO_ETH_DETECT);
 433                 return status;
 434         }
 435         status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
 436         if (status < 0) {
 437                 pr_err("error: can't setup GPIO%d as input\n",
 438                         gpio + PCF_GPIO_ETH_DETECT);
 439                 return status;
 440         }
 441         status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
 442         if (status < 0) {
 443                 pr_err("error: can't export GPIO%d\n",
 444                         gpio + PCF_GPIO_ETH_DETECT);
 445                 return status;
 446         }
 447         status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
 448         if (status < 0) {
 449                 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
 450                         gpio + PCF_GPIO_ETH_DETECT);
 451                 return status;
 452         }
 453
 454         return 0;
 455 }
 456
 457 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
 458                                         unsigned ngpio, void *context)
 459 {
 460         gpio_free(gpio + PCF_GPIO_ETH_DETECT);
 461         return 0;
 462 }
 463
 464 static struct pcf857x_platform_data pcf20_pdata = {
 465         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE0,
 466         .n_latch        = (1 << 4),
 467         .setup          = pcf8574x_0x20_setup,
 468         .teardown       = pcf8574x_0x20_teardown,
 469 };
 470
 471 static struct pcf857x_platform_data pcf22_pdata = {
 472         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE1,
 473 };
 474
 475 static struct pcf857x_platform_data pcf24_pdata = {
 476         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE2,
 477 };
 478
 479 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
 480         { /* U1 on the GS_IA18-CB_V3 board */
 481                 I2C_BOARD_INFO("pcf8574", 0x20),
 482                 .platform_data = &pcf20_pdata,
 483         },
 484         { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 485                 I2C_BOARD_INFO("pcf8574", 0x22),
 486                 .platform_data = &pcf22_pdata,
 487         },
 488         { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 489                 I2C_BOARD_INFO("pcf8574", 0x24),
 490                 .platform_data = &pcf24_pdata,
 491         },
 492         { /* U161 on the GS_IA18_S-MN board */
 493                 I2C_BOARD_INFO("24c1024", 0x50),
 494         },
 495         { /* U162 on the GS_IA18_S-MN board */
 496                 I2C_BOARD_INFO("24c01", 0x53),
 497         },
 498 };
 499
 500 /*
 501  * Compact Flash
 502  */
 503 static struct at91_cf_data __initdata gsia18s_cf1_data = {
 504         .irq_pin        = AT91_PIN_PA27,
 505         .det_pin        = AT91_PIN_PB30,
 506         .vcc_pin        = -EINVAL,
 507         .rst_pin        = AT91_PIN_PB31,
 508         .chipselect     = 5,
 509         .flags          = AT91_CF_TRUE_IDE,
 510 };
 511
 512 /* Power Off by RTC */
 513 static void gsia18s_power_off(void)
 514 {
 515         pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
 516         at91_set_gpio_output(AT91_PIN_PA25, 1);
 517         /* Spin to death... */
 518         while (1)
 519                 ;
 520 }
 521
 522 static int __init gsia18s_power_off_init(void)
 523 {
 524         pm_power_off = gsia18s_power_off;
 525         return 0;
 526 }
 527
 528 /* ---------------------------------------------------------------------------*/
 529
 530 static void __init gsia18s_board_init(void)
 531 {
 532         /*
 533          * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
 534          * Used for Internal Analog Modem.
 535          */
 536         at91_register_uart(AT91SAM9260_ID_US0, 1,
 537                                 ATMEL_UART_CTS | ATMEL_UART_RTS |
 538                                 ATMEL_UART_DTR | ATMEL_UART_DSR |
 539                                 ATMEL_UART_DCD | ATMEL_UART_RI);
 540         /*
 541          * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
 542          * Used for GPS or WiFi or Data stream.
 543          */
 544         at91_register_uart(AT91SAM9260_ID_US1, 2,
 545                                 ATMEL_UART_CTS | ATMEL_UART_RTS);
 546         /*
 547          * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
 548          * Used for External Modem.
 549          */
 550         at91_register_uart(AT91SAM9260_ID_US2, 3,
 551                                 ATMEL_UART_CTS | ATMEL_UART_RTS);
 552         /*
 553          * USART3 on ttyS4 (Rx, Tx, RTS).
 554          * Used for RS-485.
 555          */
 556         at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
 557
 558         /*
 559          * USART4 on ttyS5 (Rx, Tx).
 560          * Used for TRX433 Radio Module.
 561          */
 562         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
 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);
 567         gsia18s_leds_init();
 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();
 576 }
 577
 578 MACHINE_START(GSIA18S, "GS_IA18_S")
 579         .init_time      = at91sam926x_pit_init,
 580         .map_io         = at91_map_io,
 581         .handle_irq     = at91_aic_handle_irq,
 582         .init_early     = gsia18s_init_early,
 583         .init_irq       = at91_init_irq_default,
 584         .init_machine   = gsia18s_board_init,
 585 MACHINE_END