Logo Search packages:      
Sourcecode: linux version File versions  Download package

board-gsia18s.c

/*
 *  Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
 *                     taskit GmbH
 *                2010 Igor Plyatov <plyatov@gmail.com>
 *                     GeoSIG Ltd
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/w1-gpio.h>
#include <linux/i2c.h>
#include <linux/i2c/pcf857x.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include <mach/board.h>
#include <mach/at91sam9_smc.h>
#include <mach/gsia18s.h>
#include <mach/stamp9g20.h>

#include "sam9_smc.h"
#include "generic.h"

static void __init gsia18s_map_io(void)
{
      stamp9g20_map_io();

      /*
       * USART0 on ttyS1 (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI).
       * Used for Internal Analog Modem.
       */
      at91_register_uart(AT91SAM9260_ID_US0, 1,
                        ATMEL_UART_CTS | ATMEL_UART_RTS |
                        ATMEL_UART_DTR | ATMEL_UART_DSR |
                        ATMEL_UART_DCD | ATMEL_UART_RI);
      /*
       * USART1 on ttyS2 (Rx, Tx, CTS, RTS).
       * Used for GPS or WiFi or Data stream.
       */
      at91_register_uart(AT91SAM9260_ID_US1, 2,
                        ATMEL_UART_CTS | ATMEL_UART_RTS);
      /*
       * USART2 on ttyS3 (Rx, Tx, CTS, RTS).
       * Used for External Modem.
       */
      at91_register_uart(AT91SAM9260_ID_US2, 3,
                        ATMEL_UART_CTS | ATMEL_UART_RTS);
      /*
       * USART3 on ttyS4 (Rx, Tx, RTS).
       * Used for RS-485.
       */
      at91_register_uart(AT91SAM9260_ID_US3, 4, ATMEL_UART_RTS);

      /*
       * USART4 on ttyS5 (Rx, Tx).
       * Used for TRX433 Radio Module.
       */
      at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
}

static void __init init_irq(void)
{
      at91sam9260_init_interrupts(NULL);
}

/*
 * Two USB Host ports
 */
static struct at91_usbh_data __initdata usbh_data = {
      .ports            = 2,
};

/*
 * USB Device port
 */
static struct at91_udc_data __initdata udc_data = {
      .vbus_pin   = AT91_PIN_PA22,
      .pullup_pin = 0,        /* pull-up driven by UDC */
};

/*
 * MACB Ethernet device
 */
static struct at91_eth_data __initdata macb_data = {
      .phy_irq_pin      = AT91_PIN_PA28,
      .is_rmii    = 1,
};

/*
 * LEDs and GPOs
 */
static struct gpio_led gpio_leds[] = {
      {
            .name             = "gpo:spi1reset",
            .gpio             = AT91_PIN_PC1,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      {
            .name             = "gpo:trig_net_out",
            .gpio             = AT91_PIN_PB20,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      {
            .name             = "gpo:trig_net_dir",
            .gpio             = AT91_PIN_PB19,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      {
            .name             = "gpo:charge_dis",
            .gpio             = AT91_PIN_PC2,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      {
            .name             = "led:event",
            .gpio             = AT91_PIN_PB17,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      {
            .name             = "led:lan",
            .gpio             = AT91_PIN_PB18,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      {
            .name             = "led:error",
            .gpio             = AT91_PIN_PB16,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_ON,
      }
};

static struct gpio_led_platform_data gpio_led_info = {
      .leds       = gpio_leds,
      .num_leds   = ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds = {
      .name = "leds-gpio",
      .id   = 0,
      .dev  = {
            .platform_data    = &gpio_led_info,
      }
};

static void __init gsia18s_leds_init(void)
{
      platform_device_register(&leds);
}

/* PCF8574 0x20 GPIO - U1 on the GS_IA18-CB_V3 board */
static struct gpio_led pcf_gpio_leds1[] = {
      { /* bit 0 */
            .name             = "gpo:hdc_power",
            .gpio             = PCF_GPIO_HDC_POWER,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 1 */
            .name             = "gpo:wifi_setup",
            .gpio             = PCF_GPIO_WIFI_SETUP,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 2 */
            .name             = "gpo:wifi_enable",
            .gpio             = PCF_GPIO_WIFI_ENABLE,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 3  */
            .name             = "gpo:wifi_reset",
            .gpio             = PCF_GPIO_WIFI_RESET,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_ON,
      },
      /* bit 4 used as GPI    */
      { /* bit 5 */
            .name             = "gpo:gps_setup",
            .gpio             = PCF_GPIO_GPS_SETUP,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 6 */
            .name             = "gpo:gps_standby",
            .gpio             = PCF_GPIO_GPS_STANDBY,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_ON,
      },
      { /* bit 7 */
            .name             = "gpo:gps_power",
            .gpio             = PCF_GPIO_GPS_POWER,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      }
};

static struct gpio_led_platform_data pcf_gpio_led_info1 = {
      .leds       = pcf_gpio_leds1,
      .num_leds   = ARRAY_SIZE(pcf_gpio_leds1),
};

static struct platform_device pcf_leds1 = {
      .name = "leds-gpio", /* GS_IA18-CB_board */
      .id   = 1,
      .dev  = {
            .platform_data    = &pcf_gpio_led_info1,
      }
};

/* PCF8574 0x22 GPIO - U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
static struct gpio_led pcf_gpio_leds2[] = {
      { /* bit 0 */
            .name             = "gpo:alarm_1",
            .gpio             = PCF_GPIO_ALARM1,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 1 */
            .name             = "gpo:alarm_2",
            .gpio             = PCF_GPIO_ALARM2,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 2 */
            .name             = "gpo:alarm_3",
            .gpio             = PCF_GPIO_ALARM3,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      { /* bit 3 */
            .name             = "gpo:alarm_4",
            .gpio             = PCF_GPIO_ALARM4,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
      /* bits 4, 5, 6 not used */
      { /* bit 7 */
            .name             = "gpo:alarm_v_relay_on",
            .gpio             = PCF_GPIO_ALARM_V_RELAY_ON,
            .active_low       = 0,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
};

static struct gpio_led_platform_data pcf_gpio_led_info2 = {
      .leds       = pcf_gpio_leds2,
      .num_leds   = ARRAY_SIZE(pcf_gpio_leds2),
};

static struct platform_device pcf_leds2 = {
      .name = "leds-gpio",
      .id   = 2,
      .dev  = {
            .platform_data    = &pcf_gpio_led_info2,
      }
};

/* PCF8574 0x24 GPIO U1 on the GS_2G-OPT23-A_V0 board (Modem) */
static struct gpio_led pcf_gpio_leds3[] = {
      { /* bit 0 */
            .name             = "gpo:modem_power",
            .gpio             = PCF_GPIO_MODEM_POWER,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_OFF,
      },
            /* bits 1 and 2 not used */
      { /* bit 3 */
            .name             = "gpo:modem_reset",
            .gpio             = PCF_GPIO_MODEM_RESET,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_ON,
      },
            /* bits 4, 5 and 6 not used */
      { /* bit 7 */
            .name             = "gpo:trx_reset",
            .gpio             = PCF_GPIO_TRX_RESET,
            .active_low       = 1,
            .default_trigger  = "none",
            .default_state          = LEDS_GPIO_DEFSTATE_ON,
      }
};

static struct gpio_led_platform_data pcf_gpio_led_info3 = {
      .leds       = pcf_gpio_leds3,
      .num_leds   = ARRAY_SIZE(pcf_gpio_leds3),
};

static struct platform_device pcf_leds3 = {
      .name = "leds-gpio",
      .id   = 3,
      .dev  = {
            .platform_data    = &pcf_gpio_led_info3,
      }
};

static void __init gsia18s_pcf_leds_init(void)
{
      platform_device_register(&pcf_leds1);
      platform_device_register(&pcf_leds2);
      platform_device_register(&pcf_leds3);
}

/*
 * SPI busses.
 */
static struct spi_board_info gsia18s_spi_devices[] = {
      { /* User accessible spi0, cs0 used for communication with MSP RTC */
            .modalias   = "spidev",
            .bus_num    = 0,
            .chip_select      = 0,
            .max_speed_hz     = 580000,
            .mode       = SPI_MODE_1,
      },
      { /* User accessible spi1, cs0 used for communication with int. DSP */
            .modalias   = "spidev",
            .bus_num    = 1,
            .chip_select      = 0,
            .max_speed_hz     = 5600000,
            .mode       = SPI_MODE_0,
      },
      { /* User accessible spi1, cs1 used for communication with ext. DSP */
            .modalias   = "spidev",
            .bus_num    = 1,
            .chip_select      = 1,
            .max_speed_hz     = 5600000,
            .mode       = SPI_MODE_0,
      },
      { /* User accessible spi1, cs2 used for communication with ext. DSP */
            .modalias   = "spidev",
            .bus_num    = 1,
            .chip_select      = 2,
            .max_speed_hz     = 5600000,
            .mode       = SPI_MODE_0,
      },
      { /* User accessible spi1, cs3 used for communication with ext. DSP */
            .modalias   = "spidev",
            .bus_num    = 1,
            .chip_select      = 3,
            .max_speed_hz     = 5600000,
            .mode       = SPI_MODE_0,
      }
};

/*
 * GPI Buttons
 */
static struct gpio_keys_button buttons[] = {
      {
            .gpio       = GPIO_TRIG_NET_IN,
            .code       = BTN_1,
            .desc       = "TRIG_NET_IN",
            .type       = EV_KEY,
            .active_low = 0,
            .wakeup           = 1,
      },
      { /* SW80 on the GS_IA18_S-MN board*/
            .gpio       = GPIO_CARD_UNMOUNT_0,
            .code       = BTN_2,
            .desc       = "Card umount 0",
            .type       = EV_KEY,
            .active_low = 1,
            .wakeup           = 1,
      },
      { /* SW79 on the GS_IA18_S-MN board*/
            .gpio       = GPIO_CARD_UNMOUNT_1,
            .code       = BTN_3,
            .desc       = "Card umount 1",
            .type       = EV_KEY,
            .active_low = 1,
            .wakeup           = 1,
      },
      { /* SW280 on the GS_IA18-CB board*/
            .gpio       = GPIO_KEY_POWER,
            .code       = KEY_POWER,
            .desc       = "Power Off Button",
            .type       = EV_KEY,
            .active_low = 0,
            .wakeup           = 1,
      }
};

static struct gpio_keys_platform_data button_data = {
      .buttons    = buttons,
      .nbuttons   = ARRAY_SIZE(buttons),
};

static struct platform_device button_device = {
      .name       = "gpio-keys",
      .id         = -1,
      .num_resources    = 0,
      .dev        = {
            .platform_data    = &button_data,
      }
};

static void __init gsia18s_add_device_buttons(void)
{
      at91_set_gpio_input(GPIO_TRIG_NET_IN, 1);
      at91_set_deglitch(GPIO_TRIG_NET_IN, 1);
      at91_set_gpio_input(GPIO_CARD_UNMOUNT_0, 1);
      at91_set_deglitch(GPIO_CARD_UNMOUNT_0, 1);
      at91_set_gpio_input(GPIO_CARD_UNMOUNT_1, 1);
      at91_set_deglitch(GPIO_CARD_UNMOUNT_1, 1);
      at91_set_gpio_input(GPIO_KEY_POWER, 0);
      at91_set_deglitch(GPIO_KEY_POWER, 1);

      platform_device_register(&button_device);
}

/*
 * I2C
 */
static int pcf8574x_0x20_setup(struct i2c_client *client, int gpio,
                        unsigned int ngpio, void *context)
{
      int status;

      status = gpio_request(gpio + PCF_GPIO_ETH_DETECT, "eth_det");
      if (status < 0) {
            pr_err("error: can't request GPIO%d\n",
                  gpio + PCF_GPIO_ETH_DETECT);
            return status;
      }
      status = gpio_direction_input(gpio + PCF_GPIO_ETH_DETECT);
      if (status < 0) {
            pr_err("error: can't setup GPIO%d as input\n",
                  gpio + PCF_GPIO_ETH_DETECT);
            return status;
      }
      status = gpio_export(gpio + PCF_GPIO_ETH_DETECT, false);
      if (status < 0) {
            pr_err("error: can't export GPIO%d\n",
                  gpio + PCF_GPIO_ETH_DETECT);
            return status;
      }
      status = gpio_sysfs_set_active_low(gpio + PCF_GPIO_ETH_DETECT, 1);
      if (status < 0) {
            pr_err("error: gpio_sysfs_set active_low(GPIO%d, 1)\n",
                  gpio + PCF_GPIO_ETH_DETECT);
            return status;
      }

      return 0;
}

static int pcf8574x_0x20_teardown(struct i2c_client *client, int gpio,
                              unsigned ngpio, void *context)
{
      gpio_free(gpio + PCF_GPIO_ETH_DETECT);
      return 0;
}

static struct pcf857x_platform_data pcf20_pdata = {
      .gpio_base  = GS_IA18_S_PCF_GPIO_BASE0,
      .n_latch    = (1 << 4),
      .setup            = pcf8574x_0x20_setup,
      .teardown   = pcf8574x_0x20_teardown,
};

static struct pcf857x_platform_data pcf22_pdata = {
      .gpio_base  = GS_IA18_S_PCF_GPIO_BASE1,
};

static struct pcf857x_platform_data pcf24_pdata = {
      .gpio_base  = GS_IA18_S_PCF_GPIO_BASE2,
};

static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
      { /* U1 on the GS_IA18-CB_V3 board */
            I2C_BOARD_INFO("pcf8574", 0x20),
            .platform_data = &pcf20_pdata,
      },
      { /* U1 on the GS_2G_OPT1-A_V0 board (Alarm) */
            I2C_BOARD_INFO("pcf8574", 0x22),
            .platform_data = &pcf22_pdata,
      },
      { /* U1 on the GS_2G-OPT23-A_V0 board (Modem) */
            I2C_BOARD_INFO("pcf8574", 0x24),
            .platform_data = &pcf24_pdata,
      },
      { /* U161 on the GS_IA18_S-MN board */
            I2C_BOARD_INFO("24c1024", 0x50),
      },
      { /* U162 on the GS_IA18_S-MN board */
            I2C_BOARD_INFO("24c01", 0x53),
      },
};

/*
 * Compact Flash
 */
static struct at91_cf_data __initdata gsia18s_cf1_data = {
      .irq_pin    = AT91_PIN_PA27,
      .det_pin    = AT91_PIN_PB30,
      .rst_pin    = AT91_PIN_PB31,
      .chipselect = 5,
      .flags            = AT91_CF_TRUE_IDE,
};

/* Power Off by RTC */
static void gsia18s_power_off(void)
{
      pr_notice("Power supply will be switched off automatically now or after 60 seconds without ArmDAS.\n");
      at91_set_gpio_output(AT91_PIN_PA25, 1);
      /* Spin to death... */
      while (1)
            ;
}

static int __init gsia18s_power_off_init(void)
{
      pm_power_off = gsia18s_power_off;
      return 0;
}

/* ---------------------------------------------------------------------------*/

static void __init gsia18s_board_init(void)
{
      stamp9g20_board_init();
      at91_add_device_usbh(&usbh_data);
      at91_add_device_udc(&udc_data);
      at91_add_device_eth(&macb_data);
      gsia18s_leds_init();
      gsia18s_pcf_leds_init();
      gsia18s_add_device_buttons();
      at91_add_device_i2c(gsia18s_i2c_devices,
                        ARRAY_SIZE(gsia18s_i2c_devices));
      at91_add_device_cf(&gsia18s_cf1_data);
      at91_add_device_spi(gsia18s_spi_devices,
                        ARRAY_SIZE(gsia18s_spi_devices));
      gsia18s_power_off_init();
}

MACHINE_START(GSIA18S, "GS_IA18_S")
      .boot_params      = AT91_SDRAM_BASE + 0x100,
      .timer            = &at91sam926x_timer,
      .map_io           = gsia18s_map_io,
      .init_irq   = init_irq,
      .init_machine     = gsia18s_board_init,
MACHINE_END

Generated by  Doxygen 1.6.0   Back to index