293 lines
6.6 KiB
C
293 lines
6.6 KiB
C
/*
|
|
* Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
|
|
* taskit GmbH
|
|
*
|
|
* 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/mm.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/w1-gpio.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
#include <asm/mach/arch.h>
|
|
|
|
#include <mach/at91sam9_smc.h>
|
|
|
|
#include "at91_aic.h"
|
|
#include "board.h"
|
|
#include "sam9_smc.h"
|
|
#include "generic.h"
|
|
|
|
|
|
void __init stamp9g20_init_early(void)
|
|
{
|
|
/* Initialize processor: 18.432 MHz crystal */
|
|
at91_initialize(18432000);
|
|
}
|
|
|
|
/*
|
|
* NAND flash
|
|
*/
|
|
static struct atmel_nand_data __initdata nand_data = {
|
|
.ale = 21,
|
|
.cle = 22,
|
|
.rdy_pin = AT91_PIN_PC13,
|
|
.enable_pin = AT91_PIN_PC14,
|
|
.bus_width_16 = 0,
|
|
.det_pin = -EINVAL,
|
|
.ecc_mode = NAND_ECC_SOFT,
|
|
};
|
|
|
|
static struct sam9_smc_config __initdata nand_smc_config = {
|
|
.ncs_read_setup = 0,
|
|
.nrd_setup = 2,
|
|
.ncs_write_setup = 0,
|
|
.nwe_setup = 2,
|
|
|
|
.ncs_read_pulse = 4,
|
|
.nrd_pulse = 4,
|
|
.ncs_write_pulse = 4,
|
|
.nwe_pulse = 4,
|
|
|
|
.read_cycle = 7,
|
|
.write_cycle = 7,
|
|
|
|
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
|
|
.tdf_cycles = 3,
|
|
};
|
|
|
|
static void __init add_device_nand(void)
|
|
{
|
|
/* configure chip-select 3 (NAND) */
|
|
sam9_smc_configure(0, 3, &nand_smc_config);
|
|
|
|
at91_add_device_nand(&nand_data);
|
|
}
|
|
|
|
|
|
/*
|
|
* MCI (SD/MMC)
|
|
* det_pin, wp_pin and vcc_pin are not connected
|
|
*/
|
|
static struct mci_platform_data __initdata mmc_data = {
|
|
.slot[0] = {
|
|
.bus_width = 4,
|
|
.detect_pin = -1,
|
|
.wp_pin = -1,
|
|
},
|
|
};
|
|
|
|
|
|
/*
|
|
* USB Host port
|
|
*/
|
|
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 portuxg20_udc_data = {
|
|
.vbus_pin = AT91_PIN_PC7,
|
|
.pullup_pin = -EINVAL, /* pull-up driven by UDC */
|
|
};
|
|
|
|
static struct at91_udc_data __initdata stamp9g20evb_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
|
|
*/
|
|
static struct gpio_led portuxg20_leds[] = {
|
|
{
|
|
.name = "LED2",
|
|
.gpio = AT91_PIN_PC5,
|
|
.default_trigger = "none",
|
|
}, {
|
|
.name = "LED3",
|
|
.gpio = AT91_PIN_PC4,
|
|
.default_trigger = "none",
|
|
}, {
|
|
.name = "LED4",
|
|
.gpio = AT91_PIN_PC10,
|
|
.default_trigger = "heartbeat",
|
|
}
|
|
};
|
|
|
|
static struct gpio_led stamp9g20evb_leds[] = {
|
|
{
|
|
.name = "D8",
|
|
.gpio = AT91_PIN_PB18,
|
|
.active_low = 1,
|
|
.default_trigger = "none",
|
|
}, {
|
|
.name = "D9",
|
|
.gpio = AT91_PIN_PB19,
|
|
.active_low = 1,
|
|
.default_trigger = "none",
|
|
}, {
|
|
.name = "D10",
|
|
.gpio = AT91_PIN_PB20,
|
|
.active_low = 1,
|
|
.default_trigger = "heartbeat",
|
|
}
|
|
};
|
|
|
|
|
|
/*
|
|
* SPI devices
|
|
*/
|
|
static struct spi_board_info portuxg20_spi_devices[] = {
|
|
{
|
|
.modalias = "spidev",
|
|
.chip_select = 0,
|
|
.max_speed_hz = 1 * 1000 * 1000,
|
|
.bus_num = 0,
|
|
}, {
|
|
.modalias = "spidev",
|
|
.chip_select = 0,
|
|
.max_speed_hz = 1 * 1000 * 1000,
|
|
.bus_num = 1,
|
|
},
|
|
};
|
|
|
|
|
|
/*
|
|
* Dallas 1-Wire
|
|
*/
|
|
static struct w1_gpio_platform_data w1_gpio_pdata = {
|
|
.pin = AT91_PIN_PA29,
|
|
.is_open_drain = 1,
|
|
.ext_pullup_enable_pin = -EINVAL,
|
|
};
|
|
|
|
static struct platform_device w1_device = {
|
|
.name = "w1-gpio",
|
|
.id = -1,
|
|
.dev.platform_data = &w1_gpio_pdata,
|
|
};
|
|
|
|
void add_w1(void)
|
|
{
|
|
at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
|
|
at91_set_multi_drive(w1_gpio_pdata.pin, 1);
|
|
platform_device_register(&w1_device);
|
|
}
|
|
|
|
|
|
void __init stamp9g20_board_init(void)
|
|
{
|
|
/* Serial */
|
|
/* DGBU on ttyS0. (Rx & Tx only) */
|
|
at91_register_uart(0, 0, 0);
|
|
at91_add_device_serial();
|
|
/* NAND */
|
|
add_device_nand();
|
|
/* MMC */
|
|
at91_add_device_mci(0, &mmc_data);
|
|
/* W1 */
|
|
add_w1();
|
|
}
|
|
|
|
static void __init portuxg20_board_init(void)
|
|
{
|
|
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
|
|
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) */
|
|
at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
|
|
|
|
/* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
|
|
at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
|
|
|
|
/* USART4 on ttyS5. (Rx, Tx only) */
|
|
at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
|
|
|
|
/* USART5 on ttyS6. (Rx, Tx only) */
|
|
at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
|
|
stamp9g20_board_init();
|
|
/* USB Host */
|
|
at91_add_device_usbh(&usbh_data);
|
|
/* USB Device */
|
|
at91_add_device_udc(&portuxg20_udc_data);
|
|
/* Ethernet */
|
|
at91_add_device_eth(&macb_data);
|
|
/* I2C */
|
|
at91_add_device_i2c(NULL, 0);
|
|
/* SPI */
|
|
at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
|
|
/* LEDs */
|
|
at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
|
|
}
|
|
|
|
static void __init stamp9g20evb_board_init(void)
|
|
{
|
|
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
|
|
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);
|
|
stamp9g20_board_init();
|
|
/* USB Host */
|
|
at91_add_device_usbh(&usbh_data);
|
|
/* USB Device */
|
|
at91_add_device_udc(&stamp9g20evb_udc_data);
|
|
/* Ethernet */
|
|
at91_add_device_eth(&macb_data);
|
|
/* I2C */
|
|
at91_add_device_i2c(NULL, 0);
|
|
/* LEDs */
|
|
at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
|
|
}
|
|
|
|
MACHINE_START(PORTUXG20, "taskit PortuxG20")
|
|
/* Maintainer: taskit GmbH */
|
|
.init_time = at91sam926x_pit_init,
|
|
.map_io = at91_map_io,
|
|
.handle_irq = at91_aic_handle_irq,
|
|
.init_early = stamp9g20_init_early,
|
|
.init_irq = at91_init_irq_default,
|
|
.init_machine = portuxg20_board_init,
|
|
MACHINE_END
|
|
|
|
MACHINE_START(STAMP9G20, "taskit Stamp9G20")
|
|
/* Maintainer: taskit GmbH */
|
|
.init_time = at91sam926x_pit_init,
|
|
.map_io = at91_map_io,
|
|
.handle_irq = at91_aic_handle_irq,
|
|
.init_early = stamp9g20_init_early,
|
|
.init_irq = at91_init_irq_default,
|
|
.init_machine = stamp9g20evb_board_init,
|
|
MACHINE_END
|