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/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
  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 };
  84
  85 /*
  86  * USB Device port
  87  */
  88 static struct at91_udc_data __initdata udc_data = {
  89         .vbus_pin       = AT91_PIN_PA22,
  90         .pullup_pin     = 0,            /* pull-up driven by UDC */
  91 };
  92
  93 /*
  94  * MACB Ethernet device
  95  */
  96 static struct at91_eth_data __initdata macb_data = {
  97         .phy_irq_pin    = AT91_PIN_PA28,
  98         .is_rmii        = 1,
  99 };
 100
 101 /*
 102  * LEDs and GPOs
 103  */
 104 static struct gpio_led gpio_leds[] = {
 105         {
 106                 .name                   = "gpo:spi1reset",
 107                 .gpio                   = AT91_PIN_PC1,
 108                 .active_low             = 0,
 109                 .default_trigger        = "none",
 110                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 111         },
 112         {
 113                 .name                   = "gpo:trig_net_out",
 114                 .gpio                   = AT91_PIN_PB20,
 115                 .active_low             = 0,
 116                 .default_trigger        = "none",
 117                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 118         },
 119         {
 120                 .name                   = "gpo:trig_net_dir",
 121                 .gpio                   = AT91_PIN_PB19,
 122                 .active_low             = 0,
 123                 .default_trigger        = "none",
 124                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 125         },
 126         {
 127                 .name                   = "gpo:charge_dis",
 128                 .gpio                   = AT91_PIN_PC2,
 129                 .active_low             = 0,
 130                 .default_trigger        = "none",
 131                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 132         },
 133         {
 134                 .name                   = "led:event",
 135                 .gpio                   = AT91_PIN_PB17,
 136                 .active_low             = 1,
 137                 .default_trigger        = "none",
 138                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 139         },
 140         {
 141                 .name                   = "led:lan",
 142                 .gpio                   = AT91_PIN_PB18,
 143                 .active_low             = 1,
 144                 .default_trigger        = "none",
 145                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 146         },
 147         {
 148                 .name                   = "led:error",
 149                 .gpio                   = AT91_PIN_PB16,
 150                 .active_low             = 1,
 151                 .default_trigger        = "none",
 152                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 153         }
 154 };
 155
 156 static struct gpio_led_platform_data gpio_led_info = {
 157         .leds           = gpio_leds,
 158         .num_leds       = ARRAY_SIZE(gpio_leds),
 159 };
 160
 161 static struct platform_device leds = {
 162         .name   = "leds-gpio",
 163         .id     = 0,
 164         .dev    = {
 165                 .platform_data  = &gpio_led_info,
 166         }
 167 };
 168
 169 static void __init gsia18s_leds_init(void)
 170 {
 171         platform_device_register(&leds);
 172 }
 173
 174 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
 175 static struct gpio_led pcf_gpio_leds1[] = {
 176         { /* bit 0 */
 177                 .name                   = "gpo:hdc_power",
 178                 .gpio                   = PCF_GPIO_HDC_POWER,
 179                 .active_low             = 0,
 180                 .default_trigger        = "none",
 181                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 182         },
 183         { /* bit 1 */
 184                 .name                   = "gpo:wifi_setup",
 185                 .gpio                   = PCF_GPIO_WIFI_SETUP,
 186                 .active_low             = 1,
 187                 .default_trigger        = "none",
 188                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 189         },
 190         { /* bit 2 */
 191                 .name                   = "gpo:wifi_enable",
 192                 .gpio                   = PCF_GPIO_WIFI_ENABLE,
 193                 .active_low             = 1,
 194                 .default_trigger        = "none",
 195                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 196         },
 197         { /* bit 3      */
 198                 .name                   = "gpo:wifi_reset",
 199                 .gpio                   = PCF_GPIO_WIFI_RESET,
 200                 .active_low             = 1,
 201                 .default_trigger        = "none",
 202                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 203         },
 204         /* bit 4 used as GPI    */
 205         { /* bit 5 */
 206                 .name                   = "gpo:gps_setup",
 207                 .gpio                   = PCF_GPIO_GPS_SETUP,
 208                 .active_low             = 1,
 209                 .default_trigger        = "none",
 210                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 211         },
 212         { /* bit 6 */
 213                 .name                   = "gpo:gps_standby",
 214                 .gpio                   = PCF_GPIO_GPS_STANDBY,
 215                 .active_low             = 0,
 216                 .default_trigger        = "none",
 217                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 218         },
 219         { /* bit 7 */
 220                 .name                   = "gpo:gps_power",
 221                 .gpio                   = PCF_GPIO_GPS_POWER,
 222                 .active_low             = 0,
 223                 .default_trigger        = "none",
 224                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 225         }
 226 };
 227
 228 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
 229         .leds           = pcf_gpio_leds1,
 230         .num_leds       = ARRAY_SIZE(pcf_gpio_leds1),
 231 };
 232
 233 static struct platform_device pcf_leds1 = {
 234         .name   = "leds-gpio", /* GS_IA18-CB_board */
 235         .id     = 1,
 236         .dev    = {
 237                 .platform_data  = &pcf_gpio_led_info1,
 238         }
 239 };
 240
 241 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 242 static struct gpio_led pcf_gpio_leds2[] = {
 243         { /* bit 0 */
 244                 .name                   = "gpo:alarm_1",
 245                 .gpio                   = PCF_GPIO_ALARM1,
 246                 .active_low             = 1,
 247                 .default_trigger        = "none",
 248                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 249         },
 250         { /* bit 1 */
 251                 .name                   = "gpo:alarm_2",
 252                 .gpio                   = PCF_GPIO_ALARM2,
 253                 .active_low             = 1,
 254                 .default_trigger        = "none",
 255                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 256         },
 257         { /* bit 2 */
 258                 .name                   = "gpo:alarm_3",
 259                 .gpio                   = PCF_GPIO_ALARM3,
 260                 .active_low             = 1,
 261                 .default_trigger        = "none",
 262                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 263         },
 264         { /* bit 3 */
 265                 .name                   = "gpo:alarm_4",
 266                 .gpio                   = PCF_GPIO_ALARM4,
 267                 .active_low             = 1,
 268                 .default_trigger        = "none",
 269                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 270         },
 271         /* bits 4, 5, 6 not used */
 272         { /* bit 7 */
 273                 .name                   = "gpo:alarm_v_relay_on",
 274                 .gpio                   = PCF_GPIO_ALARM_V_RELAY_ON,
 275                 .active_low             = 0,
 276                 .default_trigger        = "none",
 277                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 278         },
 279 };
 280
 281 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
 282         .leds           = pcf_gpio_leds2,
 283         .num_leds       = ARRAY_SIZE(pcf_gpio_leds2),
 284 };
 285
 286 static struct platform_device pcf_leds2 = {
 287         .name   = "leds-gpio",
 288         .id     = 2,
 289         .dev    = {
 290                 .platform_data  = &pcf_gpio_led_info2,
 291         }
 292 };
 293
 294 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 295 static struct gpio_led pcf_gpio_leds3[] = {
 296         { /* bit 0 */
 297                 .name                   = "gpo:modem_power",
 298                 .gpio                   = PCF_GPIO_MODEM_POWER,
 299                 .active_low             = 1,
 300                 .default_trigger        = "none",
 301                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 302         },
 303                 /* bits 1 and 2 not used */
 304         { /* bit 3 */
 305                 .name                   = "gpo:modem_reset",
 306                 .gpio                   = PCF_GPIO_MODEM_RESET,
 307                 .active_low             = 1,
 308                 .default_trigger        = "none",
 309                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 310         },
 311                 /* bits 4, 5 and 6 not used */
 312         { /* bit 7 */
 313                 .name                   = "gpo:trx_reset",
 314                 .gpio                   = PCF_GPIO_TRX_RESET,
 315                 .active_low             = 1,
 316                 .default_trigger        = "none",
 317                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 318         }
 319 };
 320
 321 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
 322         .leds           = pcf_gpio_leds3,
 323         .num_leds       = ARRAY_SIZE(pcf_gpio_leds3),
 324 };
 325
 326 static struct platform_device pcf_leds3 = {
 327         .name   = "leds-gpio",
 328         .id     = 3,
 329         .dev    = {
 330                 .platform_data  = &pcf_gpio_led_info3,
 331         }
 332 };
 333
 334 static void __init gsia18s_pcf_leds_init(void)
 335 {
 336         platform_device_register(&pcf_leds1);
 337         platform_device_register(&pcf_leds2);
 338         platform_device_register(&pcf_leds3);
 339 }
 340
 341 /*
 342  * SPI busses.
 343  */
 344 static struct spi_board_info gsia18s_spi_devices[] = {
 345         { /* User accessible spi0, cs0 used for communication with MSP RTC */
 346                 .modalias       = "spidev",
 347                 .bus_num        = 0,
 348                 .chip_select    = 0,
 349                 .max_speed_hz   = 580000,
 350                 .mode           = SPI_MODE_1,
 351         },
 352         { /* User accessible spi1, cs0 used for communication with int. DSP */
 353                 .modalias       = "spidev",
 354                 .bus_num        = 1,
 355                 .chip_select    = 0,
 356                 .max_speed_hz   = 5600000,
 357                 .mode           = SPI_MODE_0,
 358         },
 359         { /* User accessible spi1, cs1 used for communication with ext. DSP */
 360                 .modalias       = "spidev",
 361                 .bus_num        = 1,
 362                 .chip_select    = 1,
 363                 .max_speed_hz   = 5600000,
 364                 .mode           = SPI_MODE_0,
 365         },
 366         { /* User accessible spi1, cs2 used for communication with ext. DSP */
 367                 .modalias       = "spidev",
 368                 .bus_num        = 1,
 369                 .chip_select    = 2,
 370                 .max_speed_hz   = 5600000,
 371                 .mode           = SPI_MODE_0,
 372         },
 373         { /* User accessible spi1, cs3 used for communication with ext. DSP */
 374                 .modalias       = "spidev",
 375                 .bus_num        = 1,
 376                 .chip_select    = 3,
 377                 .max_speed_hz   = 5600000,
 378                 .mode           = SPI_MODE_0,
 379         }
 380 };
 381
 382 /*
 383  * GPI Buttons
 384  */
 385 static struct gpio_keys_button buttons[] = {
 386         {
 387                 .gpio           = GPIO_TRIG_NET_IN,
 388                 .code           = BTN_1,
 389                 .desc           = "TRIG_NET_IN",
 390                 .type           = EV_KEY,
 391                 .active_low     = 0,
 392                 .wakeup         = 1,
 393         },
 394         { /* SW80 on the GS_IA18_S-MN board*/
 395                 .gpio           = GPIO_CARD_UNMOUNT_0,
 396                 .code           = BTN_2,
 397                 .desc           = "Card umount 0",
 398                 .type           = EV_KEY,
 399                 .active_low     = 1,
 400                 .wakeup         = 1,
 401         },
 402         { /* SW79 on the GS_IA18_S-MN board*/
 403                 .gpio           = GPIO_CARD_UNMOUNT_1,
 404                 .code           = BTN_3,
 405                 .desc           = "Card umount 1",
 406                 .type           = EV_KEY,
 407                 .active_low     = 1,
 408                 .wakeup         = 1,
 409         },
 410         { /* SW280 on the GS_IA18-CB board*/
 411                 .gpio           = GPIO_KEY_POWER,
 412                 .code           = KEY_POWER,
 413                 .desc           = "Power Off Button",
 414                 .type           = EV_KEY,
 415                 .active_low     = 0,
 416                 .wakeup         = 1,
 417         }
 418 };
 419
 420 static struct gpio_keys_platform_data button_data = {
 421         .buttons        = buttons,
 422         .nbuttons       = ARRAY_SIZE(buttons),
 423 };
 424
 425 static struct platform_device button_device = {
 426         .name           = "gpio-keys",
 427         .id             = -1,
 428         .num_resources  = 0,
 429         .dev            = {
 430                 .platform_data  = &button_data,
 431         }
 432 };
 433
 434 static void __init gsia18s_add_device_buttons(void)
 435 {
 436         at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
 437         at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
 438         at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
 439         at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
 440         at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
 441         at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
 442         at91_set_gpio_input(GPIO_KEY_POWER, 0);
 443         at91_set_deglitch(GPIO_KEY_POWER, 1);
 444
 445         platform_device_register(&button_device);
 446 }
 447
 448 /*
 449  * I2C
 450  */
 451 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
 452                                 unsigned int ngpio, void *context)
 453 {
 454         int status;
 455
 456         status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
 457         if (status < 0) {
 458                 pr_err("error: can't request GPIO%d\n",
 459                         gpio + PCF_GPIO_ETH_DETECT);
 460                 return status;
 461         }
 462         status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
 463         if (status < 0) {
 464                 pr_err("error: can't setup GPIO%d as input\n",
 465                         gpio + PCF_GPIO_ETH_DETECT);
 466                 return status;
 467         }
 468         status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
 469         if (status < 0) {
 470                 pr_err("error: can't export GPIO%d\n",
 471                         gpio + PCF_GPIO_ETH_DETECT);
 472                 return status;
 473         }
 474         status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
 475         if (status < 0) {
 476                 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
 477                         gpio + PCF_GPIO_ETH_DETECT);
 478                 return status;
 479         }
 480
 481         return 0;
 482 }
 483
 484 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
 485                                         unsigned ngpio, void *context)
 486 {
 487         gpio_free(gpio + PCF_GPIO_ETH_DETECT);
 488         return 0;
 489 }
 490
 491 static struct pcf857x_platform_data pcf20_pdata = {
 492         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE0,
 493         .n_latch        = (1 << 4),
 494         .setup          = pcf8574x_0x20_setup,
 495         .teardown       = pcf8574x_0x20_teardown,
 496 };
 497
 498 static struct pcf857x_platform_data pcf22_pdata = {
 499         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE1,
 500 };
 501
 502 static struct pcf857x_platform_data pcf24_pdata = {
 503         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE2,
 504 };
 505
 506 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
 507         { /* U1 on the GS_IA18-CB_V3 board */
 508                 I2C_BOARD_INFO("pcf8574", 0x20),
 509                 .platform_data = &pcf20_pdata,
 510         },
 511         { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 512                 I2C_BOARD_INFO("pcf8574", 0x22),
 513                 .platform_data = &pcf22_pdata,
 514         },
 515         { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 516                 I2C_BOARD_INFO("pcf8574", 0x24),
 517                 .platform_data = &pcf24_pdata,
 518         },
 519         { /* U161 on the GS_IA18_S-MN board */
 520                 I2C_BOARD_INFO("24c1024", 0x50),
 521         },
 522         { /* U162 on the GS_IA18_S-MN board */
 523                 I2C_BOARD_INFO("24c01", 0x53),
 524         },
 525 };
 526
 527 /*
 528  * Compact Flash
 529  */
 530 static struct at91_cf_data __initdata gsia18s_cf1_data = {
 531         .irq_pin        = AT91_PIN_PA27,
 532         .det_pin        = AT91_PIN_PB30,
 533         .rst_pin        = AT91_PIN_PB31,
 534         .chipselect     = 5,
 535         .flags          = AT91_CF_TRUE_IDE,
 536 };
 537
 538 /* Power Off by RTC */
 539 static void gsia18s_power_off(void)
 540 {
 541         pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
 542         at91_set_gpio_output(AT91_PIN_PA25, 1);
 543         /* Spin to death... */
 544         while (1)
 545                 ;
 546 }
 547
 548 static int __init gsia18s_power_off_init(void)
 549 {
 550         pm_power_off = gsia18s_power_off;
 551         return 0;
 552 }
 553
 554 /* ---------------------------------------------------------------------------*/
 555
 556 static void __init gsia18s_board_init(void)
 557 {
 558         stamp9g20_board_init();
 559         at91_add_device_usbh(&usbh_data);
 560         at91_add_device_udc(&udc_data);
 561         at91_add_device_eth(&macb_data);
 562         gsia18s_leds_init();
 563         gsia18s_pcf_leds_init();
 564         gsia18s_add_device_buttons();
 565         at91_add_device_i2c(gsia18s_i2c_devices,
 566                                 ARRAY_SIZE(gsia18s_i2c_devices));
 567         at91_add_device_cf(&gsia18s_cf1_data);
 568         at91_add_device_spi(gsia18s_spi_devices,
 569                                 ARRAY_SIZE(gsia18s_spi_devices));
 570         gsia18s_power_off_init();
 571 }
 572
 573 MACHINE_START(GSIA18S, "GS_IA18_S")
 574         .timer          = &at91sam926x_timer,
 575         .map_io         = at91_map_io,
 576         .init_early     = gsia18s_init_early,
 577         .init_irq       = at91_init_irq_default,
 578         .init_machine   = gsia18s_board_init,
 579 MACHINE_END