/*
   *  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
   */
  /*
   * copied and adjusted from board-stamp9g20.c
   * by Peter Gsellmann <pgsellmann@portner-elektronik.at>
   */
  
  #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"
  #include "stamp9g20.h"
  
  
  static void __init pcontrol_g20_init_early(void)
  {
  	stamp9g20_init_early();
  }
  
  static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
  	.ncs_read_setup		= 16,
  	.nrd_setup		= 18,
  	.ncs_write_setup	= 16,
  	.nwe_setup		= 18,
  
  	.ncs_read_pulse		= 63,
  	.nrd_pulse		= 55,
  	.ncs_write_pulse	= 63,
  	.nwe_pulse		= 55,
  
  	.read_cycle		= 127,
  	.write_cycle		= 127,
  
  	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  			| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  			| AT91_SMC_DBW_8 | AT91_SMC_PS_4
  			| AT91_SMC_TDFMODE,
  	.tdf_cycles		= 3,
  }, {
  	.ncs_read_setup		= 0,
  	.nrd_setup		= 0,
  	.ncs_write_setup	= 0,
  	.nwe_setup		= 1,
  
  	.ncs_read_pulse		= 8,
  	.nrd_pulse		= 8,
  	.ncs_write_pulse	= 5,
  	.nwe_pulse		= 4,
  
  	.read_cycle		= 8,
  	.write_cycle		= 7,
  
  	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE
  			| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_SELECT
  			| AT91_SMC_DBW_16 | AT91_SMC_PS_8
  			| AT91_SMC_TDFMODE,
  	.tdf_cycles		= 1,
  } };
  
  static void __init add_device_pcontrol(void)
  {
  	/* configure chip-select 4 (IO compatible to 8051  X4 ) */
  	sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
  	/* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
  	sam9_smc_configure(0, 7, &pcontrol_smc_config[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 pcontrol_g20_udc_data = {
  	.vbus_pin	= AT91_PIN_PA22,	/* Detect +5V bus voltage */
  	.pullup_pin	= AT91_PIN_PA4,		/* K-state, active low */
  };
  
  
  /*
   * MACB Ethernet device
   */
  static struct macb_platform_data __initdata macb_data = {
  	.phy_irq_pin	= AT91_PIN_PA28,
  	.is_rmii	= 1,
  };
  
  
  /*
   * I2C devices: eeprom and phy/switch
   */
  static struct i2c_board_info __initdata pcontrol_g20_i2c_devices[] = {
  {		/* D7  address width=2, 8KiB */
  	I2C_BOARD_INFO("24c64", 0x50)
  }, {		/* D8  address width=1, 1 byte has 32 bits! */
  	I2C_BOARD_INFO("lan9303", 0x0a)
  }, };
  
  
  /*
   * LEDs
   */
  static struct gpio_led pcontrol_g20_leds[] = {
  	{
  		.name			= "LED1",	/* red  H5 */
  		.gpio			= AT91_PIN_PB18,
  		.active_low		= 1,
  		.default_trigger	= "none",	/* supervisor */
  	}, {
  		.name			= "LED2",	/* yellow  H7 */
  		.gpio			= AT91_PIN_PB19,
  		.active_low		= 1,
  		.default_trigger	= "mmc0",	/* SD-card activity */
  	}, {
  		.name			= "LED3",	/* green  H2 */
  		.gpio			= AT91_PIN_PB20,
  		.active_low		= 1,
  		.default_trigger	= "heartbeat",	/* blinky */
  	}, {
  		.name			= "LED4",	/* red  H3 */
  		.gpio			= AT91_PIN_PC6,
  		.active_low		= 1,
  		.default_trigger	= "none",	/* connection lost */
  	}, {
  		.name			= "LED5",	/* yellow  H6 */
  		.gpio			= AT91_PIN_PC7,
  		.active_low		= 1,
  		.default_trigger	= "none",	/* unsent data */
  	}, {
  		.name			= "LED6",	/* green  H1 */
  		.gpio			= AT91_PIN_PC9,
  		.active_low		= 1,
  		.default_trigger	= "none",	/* snafu */
  	}
  };
  
  
  /*
   * SPI devices
   */
  static struct spi_board_info pcontrol_g20_spi_devices[] = {
  	{
  		.modalias	= "spidev",	/* HMI port  X4 */
  		.chip_select	= 1,
  		.max_speed_hz	= 50 * 1000 * 1000,
  		.bus_num	= 0,
  	}, {
  		.modalias	= "spidev",	/* piggyback  A2 */
  		.chip_select	= 0,
  		.max_speed_hz	= 50 * 1000 * 1000,
  		.bus_num	= 1,
  	},
  };
  
  
  static void __init pcontrol_g20_board_init(void)
  {
  	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS) piggyback  A2 */
  	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS
  						| ATMEL_UART_RTS);
  
  	/* USART1 on ttyS2. (Rx, Tx, CTS, RTS) isolated RS485  X5 */
  	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS
  						| ATMEL_UART_RTS);
  
  	/* USART2 on ttyS3. (Rx, Tx)  9bit-Bus  Multidrop-mode  X4 */
  	at91_register_uart(AT91SAM9260_ID_US4, 3, 0);
  	stamp9g20_board_init();
  	at91_add_device_usbh(&usbh_data);
  	at91_add_device_eth(&macb_data);
  	at91_add_device_i2c(pcontrol_g20_i2c_devices,
  		ARRAY_SIZE(pcontrol_g20_i2c_devices));
  	add_device_pcontrol();
  	at91_add_device_spi(pcontrol_g20_spi_devices,
  		ARRAY_SIZE(pcontrol_g20_spi_devices));
  	at91_add_device_udc(&pcontrol_g20_udc_data);
  	at91_gpio_leds(pcontrol_g20_leds,
  		ARRAY_SIZE(pcontrol_g20_leds));
  	/* piggyback  A2 */
  	at91_set_gpio_output(AT91_PIN_PB31, 1);
  }
  
  
  MACHINE_START(PCONTROL_G20, "PControl G20")
  	/* Maintainer: pgsellmann@portner-elektronik.at */
  	.init_time	= at91sam926x_pit_init,
  	.map_io		= at91_map_io,
  	.handle_irq	= at91_aic_handle_irq,
  	.init_early	= pcontrol_g20_init_early,
  	.init_irq	= at91_init_irq_default,
  	.init_machine	= pcontrol_g20_board_init,
  MACHINE_END