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 static void __init init_irq(void)
  79 {
  80         at91sam9260_init_interrupts(NULL);
  81 }
  82
  83 /*
  84  * Two USB Host ports
  85  */
  86 static struct at91_usbh_data __initdata usbh_data = {
  87         .ports          = 2,
  88 };
  89
  90 /*
  91  * USB Device port
  92  */
  93 static struct at91_udc_data __initdata udc_data = {
  94         .vbus_pin       = AT91_PIN_PA22,
  95         .pullup_pin     = 0,            /* pull-up driven by UDC */
  96 };
  97
  98 /*
  99  * MACB Ethernet device
 100  */
 101 static struct at91_eth_data __initdata macb_data = {
 102         .phy_irq_pin    = AT91_PIN_PA28,
 103         .is_rmii        = 1,
 104 };
 105
 106 /*
 107  * LEDs and GPOs
 108  */
 109 static struct gpio_led gpio_leds[] = {
 110         {
 111                 .name                   = "gpo:spi1reset",
 112                 .gpio                   = AT91_PIN_PC1,
 113                 .active_low             = 0,
 114                 .default_trigger        = "none",
 115                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 116         },
 117         {
 118                 .name                   = "gpo:trig_net_out",
 119                 .gpio                   = AT91_PIN_PB20,
 120                 .active_low             = 0,
 121                 .default_trigger        = "none",
 122                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 123         },
 124         {
 125                 .name                   = "gpo:trig_net_dir",
 126                 .gpio                   = AT91_PIN_PB19,
 127                 .active_low             = 0,
 128                 .default_trigger        = "none",
 129                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 130         },
 131         {
 132                 .name                   = "gpo:charge_dis",
 133                 .gpio                   = AT91_PIN_PC2,
 134                 .active_low             = 0,
 135                 .default_trigger        = "none",
 136                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 137         },
 138         {
 139                 .name                   = "led:event",
 140                 .gpio                   = AT91_PIN_PB17,
 141                 .active_low             = 1,
 142                 .default_trigger        = "none",
 143                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 144         },
 145         {
 146                 .name                   = "led:lan",
 147                 .gpio                   = AT91_PIN_PB18,
 148                 .active_low             = 1,
 149                 .default_trigger        = "none",
 150                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 151         },
 152         {
 153                 .name                   = "led:error",
 154                 .gpio                   = AT91_PIN_PB16,
 155                 .active_low             = 1,
 156                 .default_trigger        = "none",
 157                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 158         }
 159 };
 160
 161 static struct gpio_led_platform_data gpio_led_info = {
 162         .leds           = gpio_leds,
 163         .num_leds       = ARRAY_SIZE(gpio_leds),
 164 };
 165
 166 static struct platform_device leds = {
 167         .name   = "leds-gpio",
 168         .id     = 0,
 169         .dev    = {
 170                 .platform_data  = &gpio_led_info,
 171         }
 172 };
 173
 174 static void __init gsia18s_leds_init(void)
 175 {
 176         platform_device_register(&leds);
 177 }
 178
 179 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
 180 static struct gpio_led pcf_gpio_leds1[] = {
 181         { /* bit 0 */
 182                 .name                   = "gpo:hdc_power",
 183                 .gpio                   = PCF_GPIO_HDC_POWER,
 184                 .active_low             = 0,
 185                 .default_trigger        = "none",
 186                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 187         },
 188         { /* bit 1 */
 189                 .name                   = "gpo:wifi_setup",
 190                 .gpio                   = PCF_GPIO_WIFI_SETUP,
 191                 .active_low             = 1,
 192                 .default_trigger        = "none",
 193                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 194         },
 195         { /* bit 2 */
 196                 .name                   = "gpo:wifi_enable",
 197                 .gpio                   = PCF_GPIO_WIFI_ENABLE,
 198                 .active_low             = 1,
 199                 .default_trigger        = "none",
 200                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 201         },
 202         { /* bit 3      */
 203                 .name                   = "gpo:wifi_reset",
 204                 .gpio                   = PCF_GPIO_WIFI_RESET,
 205                 .active_low             = 1,
 206                 .default_trigger        = "none",
 207                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 208         },
 209         /* bit 4 used as GPI    */
 210         { /* bit 5 */
 211                 .name                   = "gpo:gps_setup",
 212                 .gpio                   = PCF_GPIO_GPS_SETUP,
 213                 .active_low             = 1,
 214                 .default_trigger        = "none",
 215                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 216         },
 217         { /* bit 6 */
 218                 .name                   = "gpo:gps_standby",
 219                 .gpio                   = PCF_GPIO_GPS_STANDBY,
 220                 .active_low             = 0,
 221                 .default_trigger        = "none",
 222                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 223         },
 224         { /* bit 7 */
 225                 .name                   = "gpo:gps_power",
 226                 .gpio                   = PCF_GPIO_GPS_POWER,
 227                 .active_low             = 0,
 228                 .default_trigger        = "none",
 229                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 230         }
 231 };
 232
 233 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
 234         .leds           = pcf_gpio_leds1,
 235         .num_leds       = ARRAY_SIZE(pcf_gpio_leds1),
 236 };
 237
 238 static struct platform_device pcf_leds1 = {
 239         .name   = "leds-gpio", /* GS_IA18-CB_board */
 240         .id     = 1,
 241         .dev    = {
 242                 .platform_data  = &pcf_gpio_led_info1,
 243         }
 244 };
 245
 246 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 247 static struct gpio_led pcf_gpio_leds2[] = {
 248         { /* bit 0 */
 249                 .name                   = "gpo:alarm_1",
 250                 .gpio                   = PCF_GPIO_ALARM1,
 251                 .active_low             = 1,
 252                 .default_trigger        = "none",
 253                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 254         },
 255         { /* bit 1 */
 256                 .name                   = "gpo:alarm_2",
 257                 .gpio                   = PCF_GPIO_ALARM2,
 258                 .active_low             = 1,
 259                 .default_trigger        = "none",
 260                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 261         },
 262         { /* bit 2 */
 263                 .name                   = "gpo:alarm_3",
 264                 .gpio                   = PCF_GPIO_ALARM3,
 265                 .active_low             = 1,
 266                 .default_trigger        = "none",
 267                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 268         },
 269         { /* bit 3 */
 270                 .name                   = "gpo:alarm_4",
 271                 .gpio                   = PCF_GPIO_ALARM4,
 272                 .active_low             = 1,
 273                 .default_trigger        = "none",
 274                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 275         },
 276         /* bits 4, 5, 6 not used */
 277         { /* bit 7 */
 278                 .name                   = "gpo:alarm_v_relay_on",
 279                 .gpio                   = PCF_GPIO_ALARM_V_RELAY_ON,
 280                 .active_low             = 0,
 281                 .default_trigger        = "none",
 282                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 283         },
 284 };
 285
 286 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
 287         .leds           = pcf_gpio_leds2,
 288         .num_leds       = ARRAY_SIZE(pcf_gpio_leds2),
 289 };
 290
 291 static struct platform_device pcf_leds2 = {
 292         .name   = "leds-gpio",
 293         .id     = 2,
 294         .dev    = {
 295                 .platform_data  = &pcf_gpio_led_info2,
 296         }
 297 };
 298
 299 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 300 static struct gpio_led pcf_gpio_leds3[] = {
 301         { /* bit 0 */
 302                 .name                   = "gpo:modem_power",
 303                 .gpio                   = PCF_GPIO_MODEM_POWER,
 304                 .active_low             = 1,
 305                 .default_trigger        = "none",
 306                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 307         },
 308                 /* bits 1 and 2 not used */
 309         { /* bit 3 */
 310                 .name                   = "gpo:modem_reset",
 311                 .gpio                   = PCF_GPIO_MODEM_RESET,
 312                 .active_low             = 1,
 313                 .default_trigger        = "none",
 314                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 315         },
 316                 /* bits 4, 5 and 6 not used */
 317         { /* bit 7 */
 318                 .name                   = "gpo:trx_reset",
 319                 .gpio                   = PCF_GPIO_TRX_RESET,
 320                 .active_low             = 1,
 321                 .default_trigger        = "none",
 322                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 323         }
 324 };
 325
 326 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
 327         .leds           = pcf_gpio_leds3,
 328         .num_leds       = ARRAY_SIZE(pcf_gpio_leds3),
 329 };
 330
 331 static struct platform_device pcf_leds3 = {
 332         .name   = "leds-gpio",
 333         .id     = 3,
 334         .dev    = {
 335                 .platform_data  = &pcf_gpio_led_info3,
 336         }
 337 };
 338
 339 static void __init gsia18s_pcf_leds_init(void)
 340 {
 341         platform_device_register(&pcf_leds1);
 342         platform_device_register(&pcf_leds2);
 343         platform_device_register(&pcf_leds3);
 344 }
 345
 346 /*
 347  * SPI busses.
 348  */
 349 static struct spi_board_info gsia18s_spi_devices[] = {
 350         { /* User accessible spi0, cs0 used for communication with MSP RTC */
 351                 .modalias       = "spidev",
 352                 .bus_num        = 0,
 353                 .chip_select    = 0,
 354                 .max_speed_hz   = 580000,
 355                 .mode           = SPI_MODE_1,
 356         },
 357         { /* User accessible spi1, cs0 used for communication with int. DSP */
 358                 .modalias       = "spidev",
 359                 .bus_num        = 1,
 360                 .chip_select    = 0,
 361                 .max_speed_hz   = 5600000,
 362                 .mode           = SPI_MODE_0,
 363         },
 364         { /* User accessible spi1, cs1 used for communication with ext. DSP */
 365                 .modalias       = "spidev",
 366                 .bus_num        = 1,
 367                 .chip_select    = 1,
 368                 .max_speed_hz   = 5600000,
 369                 .mode           = SPI_MODE_0,
 370         },
 371         { /* User accessible spi1, cs2 used for communication with ext. DSP */
 372                 .modalias       = "spidev",
 373                 .bus_num        = 1,
 374                 .chip_select    = 2,
 375                 .max_speed_hz   = 5600000,
 376                 .mode           = SPI_MODE_0,
 377         },
 378         { /* User accessible spi1, cs3 used for communication with ext. DSP */
 379                 .modalias       = "spidev",
 380                 .bus_num        = 1,
 381                 .chip_select    = 3,
 382                 .max_speed_hz   = 5600000,
 383                 .mode           = SPI_MODE_0,
 384         }
 385 };
 386
 387 /*
 388  * GPI Buttons
 389  */
 390 static struct gpio_keys_button buttons[] = {
 391         {
 392                 .gpio           = GPIO_TRIG_NET_IN,
 393                 .code           = BTN_1,
 394                 .desc           = "TRIG_NET_IN",
 395                 .type           = EV_KEY,
 396                 .active_low     = 0,
 397                 .wakeup         = 1,
 398         },
 399         { /* SW80 on the GS_IA18_S-MN board*/
 400                 .gpio           = GPIO_CARD_UNMOUNT_0,
 401                 .code           = BTN_2,
 402                 .desc           = "Card umount 0",
 403                 .type           = EV_KEY,
 404                 .active_low     = 1,
 405                 .wakeup         = 1,
 406         },
 407         { /* SW79 on the GS_IA18_S-MN board*/
 408                 .gpio           = GPIO_CARD_UNMOUNT_1,
 409                 .code           = BTN_3,
 410                 .desc           = "Card umount 1",
 411                 .type           = EV_KEY,
 412                 .active_low     = 1,
 413                 .wakeup         = 1,
 414         },
 415         { /* SW280 on the GS_IA18-CB board*/
 416                 .gpio           = GPIO_KEY_POWER,
 417                 .code           = KEY_POWER,
 418                 .desc           = "Power Off Button",
 419                 .type           = EV_KEY,
 420                 .active_low     = 0,
 421                 .wakeup         = 1,
 422         }
 423 };
 424
 425 static struct gpio_keys_platform_data button_data = {
 426         .buttons        = buttons,
 427         .nbuttons       = ARRAY_SIZE(buttons),
 428 };
 429
 430 static struct platform_device button_device = {
 431         .name           = "gpio-keys",
 432         .id             = -1,
 433         .num_resources  = 0,
 434         .dev            = {
 435                 .platform_data  = &button_data,
 436         }
 437 };
 438
 439 static void __init gsia18s_add_device_buttons(void)
 440 {
 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);
 449
 450         platform_device_register(&button_device);
 451 }
 452
 453 /*
 454  * I2C
 455  */
 456 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
 457                                 unsigned int ngpio, void *context)
 458 {
 459         int status;
 460
 461         status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
 462         if (status < 0) {
 463                 pr_err("error: can't request GPIO%d\n",
 464                         gpio + PCF_GPIO_ETH_DETECT);
 465                 return status;
 466         }
 467         status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
 468         if (status < 0) {
 469                 pr_err("error: can't setup GPIO%d as input\n",
 470                         gpio + PCF_GPIO_ETH_DETECT);
 471                 return status;
 472         }
 473         status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
 474         if (status < 0) {
 475                 pr_err("error: can't export GPIO%d\n",
 476                         gpio + PCF_GPIO_ETH_DETECT);
 477                 return status;
 478         }
 479         status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
 480         if (status < 0) {
 481                 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
 482                         gpio + PCF_GPIO_ETH_DETECT);
 483                 return status;
 484         }
 485
 486         return 0;
 487 }
 488
 489 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
 490                                         unsigned ngpio, void *context)
 491 {
 492         gpio_free(gpio + PCF_GPIO_ETH_DETECT);
 493         return 0;
 494 }
 495
 496 static struct pcf857x_platform_data pcf20_pdata = {
 497         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE0,
 498         .n_latch        = (1 << 4),
 499         .setup          = pcf8574x_0x20_setup,
 500         .teardown       = pcf8574x_0x20_teardown,
 501 };
 502
 503 static struct pcf857x_platform_data pcf22_pdata = {
 504         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE1,
 505 };
 506
 507 static struct pcf857x_platform_data pcf24_pdata = {
 508         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE2,
 509 };
 510
 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,
 515         },
 516         { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 517                 I2C_BOARD_INFO("pcf8574", 0x22),
 518                 .platform_data = &pcf22_pdata,
 519         },
 520         { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 521                 I2C_BOARD_INFO("pcf8574", 0x24),
 522                 .platform_data = &pcf24_pdata,
 523         },
 524         { /* U161 on the GS_IA18_S-MN board */
 525                 I2C_BOARD_INFO("24c1024", 0x50),
 526         },
 527         { /* U162 on the GS_IA18_S-MN board */
 528                 I2C_BOARD_INFO("24c01", 0x53),
 529         },
 530 };
 531
 532 /*
 533  * Compact Flash
 534  */
 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,
 539         .chipselect     = 5,
 540         .flags          = AT91_CF_TRUE_IDE,
 541 };
 542
 543 /* Power Off by RTC */
 544 static void gsia18s_power_off(void)
 545 {
 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... */
 549         while (1)
 550                 ;
 551 }
 552
 553 static int __init gsia18s_power_off_init(void)
 554 {
 555         pm_power_off = gsia18s_power_off;
 556         return 0;
 557 }
 558
 559 /* ---------------------------------------------------------------------------*/
 560
 561 static void __init gsia18s_board_init(void)
 562 {
 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         .timer          = &at91sam926x_timer,
 580         .map_io         = at91sam9260_map_io,
 581         .init_early     = gsia18s_init_early,
 582         .init_irq       = init_irq,
 583         .init_machine   = gsia18s_board_init,
 584 MACHINE_END