/*
   *  Board-specific setup code for the AT91SAM9M10G45 Evaluation Kit family
   *
   *  Covers: * AT91SAM9G45-EKES  board
   *          * AT91SAM9M10G45-EK board
   *
   *  Copyright (C) 2009 Atmel Corporation.
   *
   * 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.
   *
   */
  
  #include <linux/types.h>
  #include <linux/gpio.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/fb.h>
  #include <linux/gpio_keys.h>
  #include <linux/input.h>
  #include <linux/leds.h>
  #include <linux/atmel-mci.h>
  #include <linux/delay.h>
  
  #include <linux/platform_data/at91_adc.h>
  
  #include <mach/hardware.h>
  #include <video/atmel_lcdc.h>
  #include <media/soc_camera.h>
  #include <media/atmel-isi.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 <mach/system_rev.h>
  
  #include "at91_aic.h"
  #include "at91_shdwc.h"
  #include "board.h"
  #include "sam9_smc.h"
  #include "generic.h"
  
  
  static void __init ek_init_early(void)
  {
  	/* Initialize processor: 12.000 MHz crystal */
  	at91_initialize(12000000);
  }
  
  /*
   * USB HS Host port (common to OHCI & EHCI)
   */
  static struct at91_usbh_data __initdata ek_usbh_hs_data = {
  	.ports		= 2,
  	.vbus_pin	= {AT91_PIN_PD1, AT91_PIN_PD3},
  	.vbus_pin_active_low = {1, 1},
  	.overcurrent_pin= {-EINVAL, -EINVAL},
  };
  
  
  /*
   * USB HS Device port
   */
  static struct usba_platform_data __initdata ek_usba_udc_data = {
  	.vbus_pin	= AT91_PIN_PB19,
  };
  
  
  /*
   * SPI devices.
   */
  static struct spi_board_info ek_spi_devices[] = {
  	{	/* DataFlash chip */
  		.modalias	= "mtd_dataflash",
  		.chip_select	= 0,
  		.max_speed_hz	= 15 * 1000 * 1000,
  		.bus_num	= 0,
  	},
  };
  
  
  /*
   * MCI (SD/MMC)
   */
  static struct mci_platform_data __initdata mci0_data = {
  	.slot[0] = {
  		.bus_width	= 4,
  		.detect_pin	= AT91_PIN_PD10,
  		.wp_pin		= -EINVAL,
  	},
  };
  
  static struct mci_platform_data __initdata mci1_data = {
  	.slot[0] = {
  		.bus_width	= 4,
  		.detect_pin	= AT91_PIN_PD11,
  		.wp_pin		= AT91_PIN_PD29,
  	},
  };
  
  
  /*
   * MACB Ethernet device
   */
  static struct macb_platform_data __initdata ek_macb_data = {
  	.phy_irq_pin	= AT91_PIN_PD5,
  	.is_rmii	= 1,
  };
  
  
  /*
   * NAND flash
   */
  static struct mtd_partition __initdata ek_nand_partition[] = {
  	{
  		.name	= "Partition 1",
  		.offset	= 0,
  		.size	= SZ_64M,
  	},
  	{
  		.name	= "Partition 2",
  		.offset	= MTDPART_OFS_NXTBLK,
  		.size	= MTDPART_SIZ_FULL,
  	},
  };
  
  /* det_pin is not connected */
  static struct atmel_nand_data __initdata ek_nand_data = {
  	.ale		= 21,
  	.cle		= 22,
  	.rdy_pin	= AT91_PIN_PC8,
  	.enable_pin	= AT91_PIN_PC14,
  	.det_pin	= -EINVAL,
  	.ecc_mode	= NAND_ECC_SOFT,
  	.on_flash_bbt	= 1,
  	.parts		= ek_nand_partition,
  	.num_parts	= ARRAY_SIZE(ek_nand_partition),
  };
  
  static struct sam9_smc_config __initdata ek_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,
  	.tdf_cycles		= 3,
  };
  
  static void __init ek_add_device_nand(void)
  {
  	ek_nand_data.bus_width_16 = board_have_nand_16bit();
  	/* setup bus-width (8 or 16) */
  	if (ek_nand_data.bus_width_16)
  		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
  	else
  		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
  
  	/* configure chip-select 3 (NAND) */
  	sam9_smc_configure(0, 3, &ek_nand_smc_config);
  
  	at91_add_device_nand(&ek_nand_data);
  }
  
  
  /*
   *  ISI
   */
  static struct isi_platform_data __initdata isi_data = {
  	.frate			= ISI_CFG1_FRATE_CAPTURE_ALL,
  	/* to use codec and preview path simultaneously */
  	.full_mode		= 1,
  	.data_width_flags	= ISI_DATAWIDTH_8 | ISI_DATAWIDTH_10,
  	/* ISI_MCK is provided by programmable clock or external clock */
  	.mck_hz			= 25000000,
  };
  
  
  /*
   * soc-camera OV2640
   */
  #if defined(CONFIG_SOC_CAMERA_OV2640) || \
  	defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
  static unsigned long isi_camera_query_bus_param(struct soc_camera_link *link)
  {
  	/* ISI board for ek using default 8-bits connection */
  	return SOCAM_DATAWIDTH_8;
  }
  
  static int i2c_camera_power(struct device *dev, int on)
  {
  	/* enable or disable the camera */
  	pr_debug("%s: %s the camera
  ", __func__, on ? "ENABLE" : "DISABLE");
  	at91_set_gpio_output(AT91_PIN_PD13, !on);
  
  	if (!on)
  		goto out;
  
  	/* If enabled, give a reset impulse */
  	at91_set_gpio_output(AT91_PIN_PD12, 0);
  	msleep(20);
  	at91_set_gpio_output(AT91_PIN_PD12, 1);
  	msleep(100);
  
  out:
  	return 0;
  }
  
  static struct i2c_board_info i2c_camera = {
  	I2C_BOARD_INFO("ov2640", 0x30),
  };
  
  static struct soc_camera_link iclink_ov2640 = {
  	.bus_id			= 0,
  	.board_info		= &i2c_camera,
  	.i2c_adapter_id		= 0,
  	.power			= i2c_camera_power,
  	.query_bus_param	= isi_camera_query_bus_param,
  };
  
  static struct platform_device isi_ov2640 = {
  	.name	= "soc-camera-pdrv",
  	.id	= 0,
  	.dev	= {
  		.platform_data = &iclink_ov2640,
  	},
  };
  #endif
  
  
  /*
   * LCD Controller
   */
  #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
  static struct fb_videomode at91_tft_vga_modes[] = {
  	{
  		.name           = "LG",
  		.refresh	= 60,
  		.xres		= 480,		.yres		= 272,
  		.pixclock	= KHZ2PICOS(9000),
  
  		.left_margin	= 1,		.right_margin	= 1,
  		.upper_margin	= 40,		.lower_margin	= 1,
  		.hsync_len	= 45,		.vsync_len	= 1,
  
  		.sync		= 0,
  		.vmode		= FB_VMODE_NONINTERLACED,
  	},
  };
  
  static struct fb_monspecs at91fb_default_monspecs = {
  	.manufacturer	= "LG",
  	.monitor        = "LB043WQ1",
  
  	.modedb		= at91_tft_vga_modes,
  	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
  	.hfmin		= 15000,
  	.hfmax		= 17640,
  	.vfmin		= 57,
  	.vfmax		= 67,
  };
  
  #define AT91SAM9G45_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
  					| ATMEL_LCDC_DISTYPE_TFT \
  					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
  
  /* Driver datas */
  static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
  	.lcdcon_is_backlight		= true,
  	.default_bpp			= 32,
  	.default_dmacon			= ATMEL_LCDC_DMAEN,
  	.default_lcdcon2		= AT91SAM9G45_DEFAULT_LCDCON2,
  	.default_monspecs		= &at91fb_default_monspecs,
  	.guard_time			= 9,
  	.lcd_wiring_mode		= ATMEL_LCDC_WIRING_RGB,
  };
  
  #else
  static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
  #endif
  
  
  /*
   * Touchscreen
   */
  static struct at91_tsadcc_data ek_tsadcc_data = {
  	.adc_clock		= 300000,
  	.pendet_debounce	= 0x0d,
  	.ts_sample_hold_time	= 0x0a,
  };
  
  /*
   * ADCs
   */
  static struct at91_adc_data ek_adc_data = {
  	.channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7),
  	.use_external_triggers = true,
  	.vref = 3300,
  };
  
  /*
   * GPIO Buttons
   */
  #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
  static struct gpio_keys_button ek_buttons[] = {
  	{	/* BP1, "leftclic" */
  		.code		= BTN_LEFT,
  		.gpio		= AT91_PIN_PB6,
  		.active_low	= 1,
  		.desc		= "left_click",
  		.wakeup		= 1,
  	},
  	{	/* BP2, "rightclic" */
  		.code		= BTN_RIGHT,
  		.gpio		= AT91_PIN_PB7,
  		.active_low	= 1,
  		.desc		= "right_click",
  		.wakeup		= 1,
  	},
  		/* BP3, "joystick" */
  	{
  		.code		= KEY_LEFT,
  		.gpio		= AT91_PIN_PB14,
  		.active_low	= 1,
  		.desc		= "Joystick Left",
  	},
  	{
  		.code		= KEY_RIGHT,
  		.gpio		= AT91_PIN_PB15,
  		.active_low	= 1,
  		.desc		= "Joystick Right",
  	},
  	{
  		.code		= KEY_UP,
  		.gpio		= AT91_PIN_PB16,
  		.active_low	= 1,
  		.desc		= "Joystick Up",
  	},
  	{
  		.code		= KEY_DOWN,
  		.gpio		= AT91_PIN_PB17,
  		.active_low	= 1,
  		.desc		= "Joystick Down",
  	},
  	{
  		.code		= KEY_ENTER,
  		.gpio		= AT91_PIN_PB18,
  		.active_low	= 1,
  		.desc		= "Joystick Press",
  	},
  };
  
  static struct gpio_keys_platform_data ek_button_data = {
  	.buttons	= ek_buttons,
  	.nbuttons	= ARRAY_SIZE(ek_buttons),
  };
  
  static struct platform_device ek_button_device = {
  	.name		= "gpio-keys",
  	.id		= -1,
  	.num_resources	= 0,
  	.dev		= {
  		.platform_data	= &ek_button_data,
  	}
  };
  
  static void __init ek_add_device_buttons(void)
  {
  	int i;
  
  	for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
  		at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
  		at91_set_deglitch(ek_buttons[i].gpio, 1);
  	}
  
  	platform_device_register(&ek_button_device);
  }
  #else
  static void __init ek_add_device_buttons(void) {}
  #endif
  
  
  /*
   * AC97
   * reset_pin is not connected: NRST
   */
  static struct ac97c_platform_data ek_ac97_data = {
  	.reset_pin	= -EINVAL,
  };
  
  
  /*
   * LEDs ... these could all be PWM-driven, for variable brightness
   */
  static struct gpio_led ek_leds[] = {
  	{	/* "top" led, red, powerled */
  		.name			= "d8",
  		.gpio			= AT91_PIN_PD30,
  		.default_trigger	= "heartbeat",
  	},
  	{	/* "left" led, green, userled2, pwm3 */
  		.name			= "d6",
  		.gpio			= AT91_PIN_PD0,
  		.active_low		= 1,
  		.default_trigger	= "nand-disk",
  	},
  #if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
  	{	/* "right" led, green, userled1, pwm1 */
  		.name			= "d7",
  		.gpio			= AT91_PIN_PD31,
  		.active_low		= 1,
  		.default_trigger	= "mmc0",
  	},
  #endif
  };
  
  
  /*
   * PWM Leds
   */
  static struct gpio_led ek_pwm_led[] = {
  #if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
  	{	/* "right" led, green, userled1, pwm1 */
  		.name			= "d7",
  		.gpio			= 1,	/* is PWM channel number */
  		.active_low		= 1,
  		.default_trigger	= "none",
  	},
  #endif
  };
  
  static struct platform_device *devices[] __initdata = {
  #if defined(CONFIG_SOC_CAMERA_OV2640) || \
  	defined(CONFIG_SOC_CAMERA_OV2640_MODULE)
  	&isi_ov2640,
  #endif
  };
  
  static void __init ek_board_init(void)
  {
  	/* Serial */
  	/* DGBU on ttyS0. (Rx & Tx only) */
  	at91_register_uart(0, 0, 0);
  
  	/* USART0 not connected on the -EK board */
  	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
  	at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
  	at91_add_device_serial();
  	/* USB HS Host */
  	at91_add_device_usbh_ohci(&ek_usbh_hs_data);
  	at91_add_device_usbh_ehci(&ek_usbh_hs_data);
  	/* USB HS Device */
  	at91_add_device_usba(&ek_usba_udc_data);
  	/* SPI */
  	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
  	/* MMC */
  	at91_add_device_mci(0, &mci0_data);
  	at91_add_device_mci(1, &mci1_data);
  	/* Ethernet */
  	at91_add_device_eth(&ek_macb_data);
  	/* NAND */
  	ek_add_device_nand();
  	/* I2C */
  	at91_add_device_i2c(0, NULL, 0);
  	/* ISI, using programmable clock as ISI_MCK */
  	at91_add_device_isi(&isi_data, true);
  	/* LCD Controller */
  	at91_add_device_lcdc(&ek_lcdc_data);
  	/* Touch Screen */
  	at91_add_device_tsadcc(&ek_tsadcc_data);
  	/* ADC */
  	at91_add_device_adc(&ek_adc_data);
  	/* Push Buttons */
  	ek_add_device_buttons();
  	/* AC97 */
  	at91_add_device_ac97(&ek_ac97_data);
  	/* LEDs */
  	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
  	at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
  	/* Other platform devices */
  	platform_add_devices(devices, ARRAY_SIZE(devices));
  }
  
  MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
  	/* Maintainer: Atmel */
  	.init_time	= at91sam926x_pit_init,
  	.map_io		= at91_map_io,
  	.handle_irq	= at91_aic_handle_irq,
  	.init_early	= ek_init_early,
  	.init_irq	= at91_init_irq_default,
  	.init_machine	= ek_board_init,
  MACHINE_END