/*
   *  Copyright (C) 2005 SAN People
   *  Copyright (C) 2008 Atmel
   *  Copyright (C) 2010 Lee McLoughlin - lee@lmmrtech.com
   *  Copyright (C) 2010 Sergio Tanzilli - tanzilli@acmesystems.it
   *
   * 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/types.h>
  #include <linux/init.h>
  #include <linux/mm.h>
  #include <linux/module.h>
  #include <linux/platform_device.h>
  #include <linux/spi/spi.h>
  #include <linux/spi/at73c213.h>
  #include <linux/gpio.h>
  #include <linux/gpio_keys.h>
  #include <linux/input.h>
  #include <linux/clk.h>
  #include <linux/w1-gpio.h>
  
  #include <mach/hardware.h>
  #include <asm/setup.h>
  #include <asm/mach-types.h>
  #include <asm/irq.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/mach/irq.h>
  
  #include <mach/at91sam9_smc.h>
  
  #include "at91_aic.h"
  #include "board.h"
  #include "sam9_smc.h"
  #include "generic.h"
  
  /*
   * The FOX Board G20 hardware comes as the "Netus G20" board with
   * just the cpu, ram, dataflash and two header connectors.
   * This is plugged into the FOX Board which provides the ethernet,
   * usb, rtc, leds, switch, ...
   *
   * For more info visit: http://www.acmesystems.it/foxg20
   */
  
  
  static void __init foxg20_init_early(void)
  {
  	/* Initialize processor: 18.432 MHz crystal */
  	at91_initialize(18432000);
  }
  
  /*
   * USB Host port
   */
  static struct at91_usbh_data __initdata foxg20_usbh_data = {
  	.ports		= 2,
  	.vbus_pin	= {-EINVAL, -EINVAL},
  	.overcurrent_pin= {-EINVAL, -EINVAL},
  };
  
  /*
   * USB Device port
   */
  static struct at91_udc_data __initdata foxg20_udc_data = {
  	.vbus_pin	= AT91_PIN_PC6,
  	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
  };
  
  
  /*
   * SPI devices.
   */
  static struct spi_board_info foxg20_spi_devices[] = {
  #if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
  	{
  		.modalias	= "mtd_dataflash",
  		.chip_select	= 1,
  		.max_speed_hz	= 15 * 1000 * 1000,
  		.bus_num	= 0,
  	},
  #endif
  };
  
  
  /*
   * MACB Ethernet device
   */
  static struct macb_platform_data __initdata foxg20_macb_data = {
  	.phy_irq_pin	= AT91_PIN_PA7,
  	.is_rmii	= 1,
  };
  
  /*
   * MCI (SD/MMC)
   * det_pin, wp_pin and vcc_pin are not connected
   */
  static struct mci_platform_data __initdata foxg20_mci0_data = {
  	.slot[1] = {
  		.bus_width	= 4,
  		.detect_pin	= -EINVAL,
  		.wp_pin		= -EINVAL,
  	},
  };
  
  
  /*
   * LEDs
   */
  static struct gpio_led foxg20_leds[] = {
  	{	/* user led, red */
  		.name			= "user_led",
  		.gpio			= AT91_PIN_PC7,
  		.active_low		= 0,
  		.default_trigger	= "heartbeat",
  	},
  };
  
  
  /*
   * GPIO Buttons
   */
  #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
  static struct gpio_keys_button foxg20_buttons[] = {
  	{
  		.gpio		= AT91_PIN_PC4,
  		.code		= BTN_1,
  		.desc		= "Button 1",
  		.active_low	= 1,
  		.wakeup		= 1,
  	},
  };
  
  static struct gpio_keys_platform_data foxg20_button_data = {
  	.buttons	= foxg20_buttons,
  	.nbuttons	= ARRAY_SIZE(foxg20_buttons),
  };
  
  static struct platform_device foxg20_button_device = {
  	.name		= "gpio-keys",
  	.id		= -1,
  	.num_resources	= 0,
  	.dev		= {
  		.platform_data	= &foxg20_button_data,
  	}
  };
  
  static void __init foxg20_add_device_buttons(void)
  {
  	at91_set_gpio_input(AT91_PIN_PC4, 1);	/* btn1 */
  	at91_set_deglitch(AT91_PIN_PC4, 1);
  
  	platform_device_register(&foxg20_button_device);
  }
  #else
  static void __init foxg20_add_device_buttons(void) {}
  #endif
  
  
  #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
  static struct w1_gpio_platform_data w1_gpio_pdata = {
  	/* If you choose to use a pin other than PB16 it needs to be 3.3V */
  	.pin		= AT91_PIN_PB16,
  	.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,
  };
  
  static void __init at91_add_device_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);
  }
  
  #endif
  
  
  static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
  	{
  		I2C_BOARD_INFO("24c512", 0x50),
  	},
  };
  
  
  static void __init foxg20_board_init(void)
  {
  	/* Serial */
  	/* DBGU on ttyS0. (Rx & Tx only) */
  	at91_register_uart(0, 0, 0);
  
  	/* 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, RTS, CTS) */
  	at91_register_uart(AT91SAM9260_ID_US1, 2,
  		ATMEL_UART_CTS
  		| ATMEL_UART_RTS);
  
  	/* USART2 on ttyS3. (Rx & Tx only) */
  	at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
  
  	/* USART3 on ttyS4. (Rx, Tx, RTS, CTS) */
  	at91_register_uart(AT91SAM9260_ID_US3, 4,
  		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);
  
  	/* Set the internal pull-up resistor on DRXD */
  	at91_set_A_periph(AT91_PIN_PB14, 1);
  	at91_add_device_serial();
  	/* USB Host */
  	at91_add_device_usbh(&foxg20_usbh_data);
  	/* USB Device */
  	at91_add_device_udc(&foxg20_udc_data);
  	/* SPI */
  	at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
  	/* Ethernet */
  	at91_add_device_eth(&foxg20_macb_data);
  	/* MMC */
  	at91_add_device_mci(0, &foxg20_mci0_data);
  	/* I2C */
  	at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
  	/* LEDs */
  	at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
  	/* Push Buttons */
  	foxg20_add_device_buttons();
  #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
  	at91_add_device_w1();
  #endif
  }
  
  MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
  	/* Maintainer: Sergio Tanzilli */
  	.init_time	= at91sam926x_pit_init,
  	.map_io		= at91_map_io,
  	.handle_irq	= at91_aic_handle_irq,
  	.init_early	= foxg20_init_early,
  	.init_irq	= at91_init_irq_default,
  	.init_machine	= foxg20_board_init,
  MACHINE_END