linux/arch/arm/mach-at91/board-gsia18s.c
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   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
  42static void __init gsia18s_init_early(void)
  43{
  44        stamp9g20_init_early();
  45}
  46
  47/*
  48 * Two USB Host ports
  49 */
  50static 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 */
  59static 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 */
  67static 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 */
  75static 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
 127static struct gpio_led_platform_data gpio_led_info = {
 128        .leds           = gpio_leds,
 129        .num_leds       = ARRAY_SIZE(gpio_leds),
 130};
 131
 132static struct platform_device leds = {
 133        .name   = "leds-gpio",
 134        .id     = 0,
 135        .dev    = {
 136                .platform_data  = &gpio_led_info,
 137        }
 138};
 139
 140static 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 */
 146static 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
 199static struct gpio_led_platform_data pcf_gpio_led_info1 = {
 200        .leds           = pcf_gpio_leds1,
 201        .num_leds       = ARRAY_SIZE(pcf_gpio_leds1),
 202};
 203
 204static 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) */
 213static 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
 252static struct gpio_led_platform_data pcf_gpio_led_info2 = {
 253        .leds           = pcf_gpio_leds2,
 254        .num_leds       = ARRAY_SIZE(pcf_gpio_leds2),
 255};
 256
 257static 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) */
 266static 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
 292static struct gpio_led_platform_data pcf_gpio_led_info3 = {
 293        .leds           = pcf_gpio_leds3,
 294        .num_leds       = ARRAY_SIZE(pcf_gpio_leds3),
 295};
 296
 297static struct platform_device pcf_leds3 = {
 298        .name   = "leds-gpio",
 299        .id     = 3,
 300        .dev    = {
 301                .platform_data  = &pcf_gpio_led_info3,
 302        }
 303};
 304
 305static 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 */
 315static 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 */
 356static 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
 391static struct gpio_keys_platform_data button_data = {
 392        .buttons        = buttons,
 393        .nbuttons       = ARRAY_SIZE(buttons),
 394};
 395
 396static 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
 405static 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 */
 422static 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
 455static 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
 462static 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
 469static struct pcf857x_platform_data pcf22_pdata = {
 470        .gpio_base      = GS_IA18_S_PCF_GPIO_BASE1,
 471};
 472
 473static struct pcf857x_platform_data pcf24_pdata = {
 474        .gpio_base      = GS_IA18_S_PCF_GPIO_BASE2,
 475};
 476
 477static 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 */
 501static 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 */
 511static 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
 520static int __init gsia18s_power_off_init(void)
 521{
 522        pm_power_off = gsia18s_power_off;
 523        return 0;
 524}
 525
 526/* ---------------------------------------------------------------------------*/
 527
 528static 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
 576MACHINE_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,
 583MACHINE_END
 584
Hosted by Missing Link Electronics. The original LXR software by the LXR community, this experimental version by lxr@linux.no.