- 根目录:
- arch
- arm
- mach-at91
- 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_init_early(void)
{
stamp9g20_init_early();
/*
* 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);
}
/*
* Two USB Host ports
*/
static struct at91_usbh_data __initdata usbh_data = {
.ports = 2,
.vbus_pin = {-EINVAL, -EINVAL},
.overcurrent_pin= {-EINVAL, -EINVAL},
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata udc_data = {
.vbus_pin = AT91_PIN_PA22,
.pullup_pin = -EINVAL, /* pull-up driven by UDC */
};
/*
* MACB Ethernet device
*/
static struct macb_platform_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,
.vcc_pin = -EINVAL,
.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")
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.init_early = gsia18s_init_early,
.init_irq = at91_init_irq_default,
.init_machine = gsia18s_board_init,
MACHINE_END