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
  35 #include "at91_aic.h"
  36 #include "board.h"
  37 #include "sam9_smc.h"
  38 #include "generic.h"
  39 #include "gsia18s.h"
  40 #include "stamp9g20.h"
  41
  42 static void __init gsia18s_init_early(void)
  43 {
  44         stamp9g20_init_early();
  45 }
  46
  47 /*
  48  * Two USB Host ports
  49  */
  50 static struct at91_usbh_data __initdata usbh_data = {
  51         .ports          = 2,
  52         .vbus_pin       = {-EINVAL, -EINVAL},
  53         .overcurrent_pin= {-EINVAL, -EINVAL},
  54 };
  55
  56 /*
  57  * USB Device port
  58  */
  59 static struct at91_udc_data __initdata udc_data = {
  60         .vbus_pin       = AT91_PIN_PA22,
  61         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
  62 };
  63
  64 /*
  65  * MACB Ethernet device
  66  */
  67 static struct macb_platform_data __initdata macb_data = {
  68         .phy_irq_pin    = AT91_PIN_PA28,
  69         .is_rmii        = 1,
  70 };
  71
  72 /*
  73  * LEDs and GPOs
  74  */
  75 static struct gpio_led gpio_leds[] = {
  76         {
  77                 .name                   = "gpo:spi1reset",
  78                 .gpio                   = AT91_PIN_PC1,
  79                 .active_low             = 0,
  80                 .default_trigger        = "none",
  81                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
  82         },
  83         {
  84                 .name                   = "gpo:trig_net_out",
  85                 .gpio                   = AT91_PIN_PB20,
  86                 .active_low             = 0,
  87                 .default_trigger        = "none",
  88                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
  89         },
  90         {
  91                 .name                   = "gpo:trig_net_dir",
  92                 .gpio                   = AT91_PIN_PB19,
  93                 .active_low             = 0,
  94                 .default_trigger        = "none",
  95                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
  96         },
  97         {
  98                 .name                   = "gpo:charge_dis",
  99                 .gpio                   = AT91_PIN_PC2,
 100                 .active_low             = 0,
 101                 .default_trigger        = "none",
 102                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 103         },
 104         {
 105                 .name                   = "led:event",
 106                 .gpio                   = AT91_PIN_PB17,
 107                 .active_low             = 1,
 108                 .default_trigger        = "none",
 109                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 110         },
 111         {
 112                 .name                   = "led:lan",
 113                 .gpio                   = AT91_PIN_PB18,
 114                 .active_low             = 1,
 115                 .default_trigger        = "none",
 116                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 117         },
 118         {
 119                 .name                   = "led:error",
 120                 .gpio                   = AT91_PIN_PB16,
 121                 .active_low             = 1,
 122                 .default_trigger        = "none",
 123                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 124         }
 125 };
 126
 127 static struct gpio_led_platform_data gpio_led_info = {
 128         .leds           = gpio_leds,
 129         .num_leds       = ARRAY_SIZE(gpio_leds),
 130 };
 131
 132 static struct platform_device leds = {
 133         .name   = "leds-gpio",
 134         .id     = 0,
 135         .dev    = {
 136                 .platform_data  = &gpio_led_info,
 137         }
 138 };
 139
 140 static void __init gsia18s_leds_init(void)
 141 {
 142         platform_device_register(&leds);
 143 }
 144
 145 /* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
 146 static struct gpio_led pcf_gpio_leds1[] = {
 147         { /* bit 0 */
 148                 .name                   = "gpo:hdc_power",
 149                 .gpio                   = PCF_GPIO_HDC_POWER,
 150                 .active_low             = 0,
 151                 .default_trigger        = "none",
 152                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 153         },
 154         { /* bit 1 */
 155                 .name                   = "gpo:wifi_setup",
 156                 .gpio                   = PCF_GPIO_WIFI_SETUP,
 157                 .active_low             = 1,
 158                 .default_trigger        = "none",
 159                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 160         },
 161         { /* bit 2 */
 162                 .name                   = "gpo:wifi_enable",
 163                 .gpio                   = PCF_GPIO_WIFI_ENABLE,
 164                 .active_low             = 1,
 165                 .default_trigger        = "none",
 166                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 167         },
 168         { /* bit 3      */
 169                 .name                   = "gpo:wifi_reset",
 170                 .gpio                   = PCF_GPIO_WIFI_RESET,
 171                 .active_low             = 1,
 172                 .default_trigger        = "none",
 173                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 174         },
 175         /* bit 4 used as GPI    */
 176         { /* bit 5 */
 177                 .name                   = "gpo:gps_setup",
 178                 .gpio                   = PCF_GPIO_GPS_SETUP,
 179                 .active_low             = 1,
 180                 .default_trigger        = "none",
 181                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 182         },
 183         { /* bit 6 */
 184                 .name                   = "gpo:gps_standby",
 185                 .gpio                   = PCF_GPIO_GPS_STANDBY,
 186                 .active_low             = 0,
 187                 .default_trigger        = "none",
 188                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 189         },
 190         { /* bit 7 */
 191                 .name                   = "gpo:gps_power",
 192                 .gpio                   = PCF_GPIO_GPS_POWER,
 193                 .active_low             = 0,
 194                 .default_trigger        = "none",
 195                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 196         }
 197 };
 198
 199 static struct gpio_led_platform_data pcf_gpio_led_info1 = {
 200         .leds           = pcf_gpio_leds1,
 201         .num_leds       = ARRAY_SIZE(pcf_gpio_leds1),
 202 };
 203
 204 static struct platform_device pcf_leds1 = {
 205         .name   = "leds-gpio", /* GS_IA18-CB_board */
 206         .id     = 1,
 207         .dev    = {
 208                 .platform_data  = &pcf_gpio_led_info1,
 209         }
 210 };
 211
 212 /* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 213 static struct gpio_led pcf_gpio_leds2[] = {
 214         { /* bit 0 */
 215                 .name                   = "gpo:alarm_1",
 216                 .gpio                   = PCF_GPIO_ALARM1,
 217                 .active_low             = 1,
 218                 .default_trigger        = "none",
 219                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 220         },
 221         { /* bit 1 */
 222                 .name                   = "gpo:alarm_2",
 223                 .gpio                   = PCF_GPIO_ALARM2,
 224                 .active_low             = 1,
 225                 .default_trigger        = "none",
 226                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 227         },
 228         { /* bit 2 */
 229                 .name                   = "gpo:alarm_3",
 230                 .gpio                   = PCF_GPIO_ALARM3,
 231                 .active_low             = 1,
 232                 .default_trigger        = "none",
 233                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 234         },
 235         { /* bit 3 */
 236                 .name                   = "gpo:alarm_4",
 237                 .gpio                   = PCF_GPIO_ALARM4,
 238                 .active_low             = 1,
 239                 .default_trigger        = "none",
 240                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 241         },
 242         /* bits 4, 5, 6 not used */
 243         { /* bit 7 */
 244                 .name                   = "gpo:alarm_v_relay_on",
 245                 .gpio                   = PCF_GPIO_ALARM_V_RELAY_ON,
 246                 .active_low             = 0,
 247                 .default_trigger        = "none",
 248                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 249         },
 250 };
 251
 252 static struct gpio_led_platform_data pcf_gpio_led_info2 = {
 253         .leds           = pcf_gpio_leds2,
 254         .num_leds       = ARRAY_SIZE(pcf_gpio_leds2),
 255 };
 256
 257 static struct platform_device pcf_leds2 = {
 258         .name   = "leds-gpio",
 259         .id     = 2,
 260         .dev    = {
 261                 .platform_data  = &pcf_gpio_led_info2,
 262         }
 263 };
 264
 265 /* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 266 static struct gpio_led pcf_gpio_leds3[] = {
 267         { /* bit 0 */
 268                 .name                   = "gpo:modem_power",
 269                 .gpio                   = PCF_GPIO_MODEM_POWER,
 270                 .active_low             = 1,
 271                 .default_trigger        = "none",
 272                 .default_state          = LEDS_GPIO_DEFSTATE_OFF,
 273         },
 274                 /* bits 1 and 2 not used */
 275         { /* bit 3 */
 276                 .name                   = "gpo:modem_reset",
 277                 .gpio                   = PCF_GPIO_MODEM_RESET,
 278                 .active_low             = 1,
 279                 .default_trigger        = "none",
 280                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 281         },
 282                 /* bits 4, 5 and 6 not used */
 283         { /* bit 7 */
 284                 .name                   = "gpo:trx_reset",
 285                 .gpio                   = PCF_GPIO_TRX_RESET,
 286                 .active_low             = 1,
 287                 .default_trigger        = "none",
 288                 .default_state          = LEDS_GPIO_DEFSTATE_ON,
 289         }
 290 };
 291
 292 static struct gpio_led_platform_data pcf_gpio_led_info3 = {
 293         .leds           = pcf_gpio_leds3,
 294         .num_leds       = ARRAY_SIZE(pcf_gpio_leds3),
 295 };
 296
 297 static struct platform_device pcf_leds3 = {
 298         .name   = "leds-gpio",
 299         .id     = 3,
 300         .dev    = {
 301                 .platform_data  = &pcf_gpio_led_info3,
 302         }
 303 };
 304
 305 static void __init gsia18s_pcf_leds_init(void)
 306 {
 307         platform_device_register(&pcf_leds1);
 308         platform_device_register(&pcf_leds2);
 309         platform_device_register(&pcf_leds3);
 310 }
 311
 312 /*
 313  * SPI busses.
 314  */
 315 static struct spi_board_info gsia18s_spi_devices[] = {
 316         { /* User accessible spi0, cs0 used for communication with MSP RTC */
 317                 .modalias       = "spidev",
 318                 .bus_num        = 0,
 319                 .chip_select    = 0,
 320                 .max_speed_hz   = 580000,
 321                 .mode           = SPI_MODE_1,
 322         },
 323         { /* User accessible spi1, cs0 used for communication with int. DSP */
 324                 .modalias       = "spidev",
 325                 .bus_num        = 1,
 326                 .chip_select    = 0,
 327                 .max_speed_hz   = 5600000,
 328                 .mode           = SPI_MODE_0,
 329         },
 330         { /* User accessible spi1, cs1 used for communication with ext. DSP */
 331                 .modalias       = "spidev",
 332                 .bus_num        = 1,
 333                 .chip_select    = 1,
 334                 .max_speed_hz   = 5600000,
 335                 .mode           = SPI_MODE_0,
 336         },
 337         { /* User accessible spi1, cs2 used for communication with ext. DSP */
 338                 .modalias       = "spidev",
 339                 .bus_num        = 1,
 340                 .chip_select    = 2,
 341                 .max_speed_hz   = 5600000,
 342                 .mode           = SPI_MODE_0,
 343         },
 344         { /* User accessible spi1, cs3 used for communication with ext. DSP */
 345                 .modalias       = "spidev",
 346                 .bus_num        = 1,
 347                 .chip_select    = 3,
 348                 .max_speed_hz   = 5600000,
 349                 .mode           = SPI_MODE_0,
 350         }
 351 };
 352
 353 /*
 354  * GPI Buttons
 355  */
 356 static struct gpio_keys_button buttons[] = {
 357         {
 358                 .gpio           = GPIO_TRIG_NET_IN,
 359                 .code           = BTN_1,
 360                 .desc           = "TRIG_NET_IN",
 361                 .type           = EV_KEY,
 362                 .active_low     = 0,
 363                 .wakeup         = 1,
 364         },
 365         { /* SW80 on the GS_IA18_S-MN board*/
 366                 .gpio           = GPIO_CARD_UNMOUNT_0,
 367                 .code           = BTN_2,
 368                 .desc           = "Card umount 0",
 369                 .type           = EV_KEY,
 370                 .active_low     = 1,
 371                 .wakeup         = 1,
 372         },
 373         { /* SW79 on the GS_IA18_S-MN board*/
 374                 .gpio           = GPIO_CARD_UNMOUNT_1,
 375                 .code           = BTN_3,
 376                 .desc           = "Card umount 1",
 377                 .type           = EV_KEY,
 378                 .active_low     = 1,
 379                 .wakeup         = 1,
 380         },
 381         { /* SW280 on the GS_IA18-CB board*/
 382                 .gpio           = GPIO_KEY_POWER,
 383                 .code           = KEY_POWER,
 384                 .desc           = "Power Off Button",
 385                 .type           = EV_KEY,
 386                 .active_low     = 0,
 387                 .wakeup         = 1,
 388         }
 389 };
 390
 391 static struct gpio_keys_platform_data button_data = {
 392         .buttons        = buttons,
 393         .nbuttons       = ARRAY_SIZE(buttons),
 394 };
 395
 396 static struct platform_device button_device = {
 397         .name           = "gpio-keys",
 398         .id             = -1,
 399         .num_resources  = 0,
 400         .dev            = {
 401                 .platform_data  = &button_data,
 402         }
 403 };
 404
 405 static void __init gsia18s_add_device_buttons(void)
 406 {
 407         at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
 408         at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
 409         at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
 410         at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
 411         at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
 412         at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
 413         at91_set_gpio_input(GPIO_KEY_POWER, 0);
 414         at91_set_deglitch(GPIO_KEY_POWER, 1);
 415
 416         platform_device_register(&button_device);
 417 }
 418
 419 /*
 420  * I2C
 421  */
 422 static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
 423                                 unsigned int ngpio, void *context)
 424 {
 425         int status;
 426
 427         status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
 428         if (status < 0) {
 429                 pr_err("error: can't request GPIO%d\n",
 430                         gpio + PCF_GPIO_ETH_DETECT);
 431                 return status;
 432         }
 433         status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
 434         if (status < 0) {
 435                 pr_err("error: can't setup GPIO%d as input\n",
 436                         gpio + PCF_GPIO_ETH_DETECT);
 437                 return status;
 438         }
 439         status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
 440         if (status < 0) {
 441                 pr_err("error: can't export GPIO%d\n",
 442                         gpio + PCF_GPIO_ETH_DETECT);
 443                 return status;
 444         }
 445         status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
 446         if (status < 0) {
 447                 pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
 448                         gpio + PCF_GPIO_ETH_DETECT);
 449                 return status;
 450         }
 451
 452         return 0;
 453 }
 454
 455 static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
 456                                         unsigned ngpio, void *context)
 457 {
 458         gpio_free(gpio + PCF_GPIO_ETH_DETECT);
 459         return 0;
 460 }
 461
 462 static struct pcf857x_platform_data pcf20_pdata = {
 463         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE0,
 464         .n_latch        = (1 << 4),
 465         .setup          = pcf8574x_0x20_setup,
 466         .teardown       = pcf8574x_0x20_teardown,
 467 };
 468
 469 static struct pcf857x_platform_data pcf22_pdata = {
 470         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE1,
 471 };
 472
 473 static struct pcf857x_platform_data pcf24_pdata = {
 474         .gpio_base      = GS_IA18_S_PCF_GPIO_BASE2,
 475 };
 476
 477 static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
 478         { /* U1 on the GS_IA18-CB_V3 board */
 479                 I2C_BOARD_INFO("pcf8574", 0x20),
 480                 .platform_data = &pcf20_pdata,
 481         },
 482         { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
 483                 I2C_BOARD_INFO("pcf8574", 0x22),
 484                 .platform_data = &pcf22_pdata,
 485         },
 486         { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
 487                 I2C_BOARD_INFO("pcf8574", 0x24),
 488                 .platform_data = &pcf24_pdata,
 489         },
 490         { /* U161 on the GS_IA18_S-MN board */
 491                 I2C_BOARD_INFO("24c1024", 0x50),
 492         },
 493         { /* U162 on the GS_IA18_S-MN board */
 494                 I2C_BOARD_INFO("24c01", 0x53),
 495         },
 496 };
 497
 498 /*
 499  * Compact Flash
 500  */
 501 static struct at91_cf_data __initdata gsia18s_cf1_data = {
 502         .irq_pin        = AT91_PIN_PA27,
 503         .det_pin        = AT91_PIN_PB30,
 504         .vcc_pin        = -EINVAL,
 505         .rst_pin        = AT91_PIN_PB31,
 506         .chipselect     = 5,
 507         .flags          = AT91_CF_TRUE_IDE,
 508 };
 509
 510 /* Power Off by RTC */
 511 static void gsia18s_power_off(void)
 512 {
 513         pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
 514         at91_set_gpio_output(AT91_PIN_PA25, 1);
 515         /* Spin to death... */
 516         while (1)
 517                 ;
 518 }
 519
 520 static int __init gsia18s_power_off_init(void)
 521 {
 522         pm_power_off = gsia18s_power_off;
 523         return 0;
 524 }
 525
 526 /* ---------------------------------------------------------------------------*/
 527
 528 static void __init gsia18s_board_init(void)
 529 {
 530         /*
 531          * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
 532          * Used for Internal Analog Modem.
 533          */
 534         at91_register_uart(AT91SAM9260_ID_US0, 1,
 535                                 ATMEL_UART_CTS | ATMEL_UART_RTS |
 536                                 ATMEL_UART_DTR | ATMEL_UART_DSR |
 537                                 ATMEL_UART_DCD | ATMEL_UART_RI);
 538         /*
 539          * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
 540          * Used for GPS or WiFi or Data stream.
 541          */
 542         at91_register_uart(AT91SAM9260_ID_US1, 2,
 543                                 ATMEL_UART_CTS | ATMEL_UART_RTS);
 544         /*
 545          * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
 546          * Used for External Modem.
 547          */
 548         at91_register_uart(AT91SAM9260_ID_US2, 3,
 549                                 ATMEL_UART_CTS | ATMEL_UART_RTS);
 550         /*
 551          * USART3 on ttyS4 (Rx, Tx, RTS).
 552          * Used for RS-485.
 553          */
 554         at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);
 555
 556         /*
 557          * USART4 on ttyS5 (Rx, Tx).
 558          * Used for TRX433 Radio Module.
 559          */
 560         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
 561         stamp9g20_board_init();
 562         at91_add_device_usbh(&usbh_data);
 563         at91_add_device_udc(&udc_data);
 564         at91_add_device_eth(&macb_data);
 565         gsia18s_leds_init();
 566         gsia18s_pcf_leds_init();
 567         gsia18s_add_device_buttons();
 568         at91_add_device_i2c(gsia18s_i2c_devices,
 569                                 ARRAY_SIZE(gsia18s_i2c_devices));
 570         at91_add_device_cf(&gsia18s_cf1_data);
 571         at91_add_device_spi(gsia18s_spi_devices,
 572                                 ARRAY_SIZE(gsia18s_spi_devices));
 573         gsia18s_power_off_init();
 574 }
 575
 576 MACHINE_START(GSIA18S, "GS_IA18_S")
 577         .init_time      = at91sam926x_pit_init,
 578         .map_io         = at91_map_io,
 579         .handle_irq     = at91_aic_handle_irq,
 580         .init_early     = gsia18s_init_early,
 581         .init_irq       = at91_init_irq_default,
 582         .init_machine   = gsia18s_board_init,
 583 MACHINE_END