/*
   *  linux/arch/arm/mach-pxa/balloon3.c
   *
   *  Support for Balloonboard.org Balloon3 board.
   *
   *  Author:	Nick Bane, Wookey, Jonathan McDowell
   *  Created:	June, 2006
   *  Copyright:	Toby Churchill Ltd
   *  Derived from mainstone.c, by Nico Pitre
   *
   *  This program is free software; you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License version 2 as
   *  published by the Free Software Foundation.
   */

  #include <linux/export.h>

  #include <linux/init.h>
  #include <linux/platform_device.h>

  #include <linux/interrupt.h>
  #include <linux/sched.h>
  #include <linux/bitops.h>
  #include <linux/fb.h>
  #include <linux/gpio.h>
  #include <linux/ioport.h>

  #include <linux/ucb1400.h>

  #include <linux/mtd/mtd.h>
  #include <linux/mtd/partitions.h>
  #include <linux/types.h>

  #include <linux/i2c/pcf857x.h>

  #include <linux/i2c/pxa-i2c.h>

  #include <linux/mtd/nand.h>
  #include <linux/mtd/physmap.h>

  #include <linux/regulator/max1586.h>

  
  #include <asm/setup.h>
  #include <asm/mach-types.h>
  #include <asm/irq.h>
  #include <asm/sizes.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/mach/irq.h>
  #include <asm/mach/flash.h>
  
  #include <mach/pxa27x.h>
  #include <mach/balloon3.h>
  #include <mach/audio.h>
  #include <mach/pxafb.h>
  #include <mach/mmc.h>
  #include <mach/udc.h>
  #include <mach/pxa27x-udc.h>
  #include <mach/irda.h>
  #include <mach/ohci.h>

  #include "generic.h"
  #include "devices.h"

  /******************************************************************************
   * Pin configuration
   ******************************************************************************/
  static unsigned long balloon3_pin_config[] __initdata = {
  	/* Select BTUART 'COM1/ttyS0' as IO option for pins 42/43/44/45 */
  	GPIO42_BTUART_RXD,
  	GPIO43_BTUART_TXD,
  	GPIO44_BTUART_CTS,
  	GPIO45_BTUART_RTS,

  	/* Reset, configured as GPIO wakeup source */

  	GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,

  };

  /******************************************************************************

   * Compatibility: Parameter parsing

   ******************************************************************************/

  static unsigned long balloon3_irq_enabled;

  static unsigned long balloon3_features_present =
  		(1 << BALLOON3_FEATURE_OHCI) | (1 << BALLOON3_FEATURE_CF) |
  		(1 << BALLOON3_FEATURE_AUDIO) |
  		(1 << BALLOON3_FEATURE_TOPPOLY);
  
  int balloon3_has(enum balloon3_features feature)

  {

  	return (balloon3_features_present & (1 << feature)) ? 1 : 0;
  }
  EXPORT_SYMBOL_GPL(balloon3_has);
  
  int __init parse_balloon3_features(char *arg)
  {
  	if (!arg)
  		return 0;
  
  	return strict_strtoul(arg, 0, &balloon3_features_present);

  }

  early_param("balloon3_features", parse_balloon3_features);

  /******************************************************************************

   * Compact Flash slot
   ******************************************************************************/
  #if	defined(CONFIG_PCMCIA_PXA2XX) || defined(CONFIG_PCMCIA_PXA2XX_MODULE)
  static unsigned long balloon3_cf_pin_config[] __initdata = {
  	GPIO48_nPOE,
  	GPIO49_nPWE,
  	GPIO50_nPIOR,
  	GPIO51_nPIOW,
  	GPIO85_nPCE_1,
  	GPIO54_nPCE_2,
  	GPIO79_PSKTSEL,
  	GPIO55_nPREG,
  	GPIO56_nPWAIT,
  	GPIO57_nIOIS16,
  };
  
  static void __init balloon3_cf_init(void)
  {
  	if (!balloon3_has(BALLOON3_FEATURE_CF))
  		return;
  
  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_cf_pin_config));
  }
  #else
  static inline void balloon3_cf_init(void) {}
  #endif
  
  /******************************************************************************

   * NOR Flash
   ******************************************************************************/
  #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
  static struct mtd_partition balloon3_nor_partitions[] = {
  	{
  		.name		= "Flash",
  		.offset		= 0x00000000,
  		.size		= MTDPART_SIZ_FULL,
  	}
  };
  
  static struct physmap_flash_data balloon3_flash_data[] = {
  	{
  		.width		= 2,	/* bankwidth in bytes */
  		.parts		= balloon3_nor_partitions,
  		.nr_parts	= ARRAY_SIZE(balloon3_nor_partitions)
  	}
  };
  
  static struct resource balloon3_flash_resource = {
  	.start	= PXA_CS0_PHYS,
  	.end	= PXA_CS0_PHYS + SZ_64M - 1,
  	.flags	= IORESOURCE_MEM,
  };
  
  static struct platform_device balloon3_flash = {
  	.name		= "physmap-flash",
  	.id		= 0,
  	.resource	= &balloon3_flash_resource,
  	.num_resources	= 1,
  	.dev 		= {
  		.platform_data = balloon3_flash_data,
  	},
  };
  static void __init balloon3_nor_init(void)
  {
  	platform_device_register(&balloon3_flash);
  }
  #else
  static inline void balloon3_nor_init(void) {}
  #endif
  
  /******************************************************************************
   * Audio and Touchscreen
   ******************************************************************************/
  #if	defined(CONFIG_TOUCHSCREEN_UCB1400) || \
  	defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)

  static unsigned long balloon3_ac97_pin_config[] __initdata = {
  	GPIO28_AC97_BITCLK,
  	GPIO29_AC97_SDATA_IN_0,
  	GPIO30_AC97_SDATA_OUT,
  	GPIO31_AC97_SYNC,
  	GPIO113_AC97_nRESET,
  	GPIO95_GPIO,
  };

  static struct ucb1400_pdata vpac270_ucb1400_pdata = {

  	.irq		= PXA_GPIO_TO_IRQ(BALLOON3_GPIO_CODEC_IRQ),

  };
  
  
  static struct platform_device balloon3_ucb1400_device = {
  	.name		= "ucb1400_core",
  	.id		= -1,
  	.dev		= {
  		.platform_data = &vpac270_ucb1400_pdata,
  	},
  };
  
  static void __init balloon3_ts_init(void)
  {
  	if (!balloon3_has(BALLOON3_FEATURE_AUDIO))
  		return;

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_ac97_pin_config));

  	pxa_set_ac97_info(NULL);
  	platform_device_register(&balloon3_ucb1400_device);
  }
  #else
  static inline void balloon3_ts_init(void) {}
  #endif
  
  /******************************************************************************
   * Framebuffer
   ******************************************************************************/
  #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)

  static unsigned long balloon3_lcd_pin_config[] __initdata = {
  	GPIOxx_LCD_TFT_16BPP,
  	GPIO99_GPIO,
  };

  static struct pxafb_mode_info balloon3_lcd_modes[] = {
  	{
  		.pixclock		= 38000,
  		.xres			= 480,
  		.yres			= 640,
  		.bpp			= 16,
  		.hsync_len		= 8,
  		.left_margin		= 8,
  		.right_margin		= 8,
  		.vsync_len		= 2,
  		.upper_margin		= 4,
  		.lower_margin		= 5,
  		.sync			= 0,
  	},
  };

  static struct pxafb_mach_info balloon3_lcd_screen = {

  	.modes			= balloon3_lcd_modes,
  	.num_modes		= ARRAY_SIZE(balloon3_lcd_modes),
  	.lcd_conn		= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,

  };

  static void balloon3_backlight_power(int on)
  {
  	gpio_set_value(BALLOON3_GPIO_RUN_BACKLIGHT, on);
  }

  static void __init balloon3_lcd_init(void)

  {

  	int ret;
  
  	if (!balloon3_has(BALLOON3_FEATURE_TOPPOLY))
  		return;

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_lcd_pin_config));

  	ret = gpio_request(BALLOON3_GPIO_RUN_BACKLIGHT, "BKL-ON");
  	if (ret) {
  		pr_err("Requesting BKL-ON GPIO failed!
  ");
  		goto err;
  	}
  
  	ret = gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1);
  	if (ret) {
  		pr_err("Setting BKL-ON GPIO direction failed!
  ");
  		goto err2;

  	}

  
  	balloon3_lcd_screen.pxafb_backlight_power = balloon3_backlight_power;

  	pxa_set_fb_info(NULL, &balloon3_lcd_screen);

  	return;
  
  err2:
  	gpio_free(BALLOON3_GPIO_RUN_BACKLIGHT);
  err:
  	return;

  }

  #else
  static inline void balloon3_lcd_init(void) {}
  #endif

  /******************************************************************************
   * SD/MMC card controller
   ******************************************************************************/
  #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)

  static unsigned long balloon3_mmc_pin_config[] __initdata = {
  	GPIO32_MMC_CLK,
  	GPIO92_MMC_DAT_0,
  	GPIO109_MMC_DAT_1,
  	GPIO110_MMC_DAT_2,
  	GPIO111_MMC_DAT_3,
  	GPIO112_MMC_CMD,
  };

  static struct pxamci_platform_data balloon3_mci_platform_data = {

  	.ocr_mask		= MMC_VDD_32_33 | MMC_VDD_33_34,
  	.gpio_card_detect	= -1,
  	.gpio_card_ro		= -1,
  	.gpio_power		= -1,
  	.detect_delay_ms	= 200,

  };

  static void __init balloon3_mmc_init(void)
  {

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_mmc_pin_config));

  	pxa_set_mci_info(&balloon3_mci_platform_data);
  }
  #else
  static inline void balloon3_mmc_init(void) {}
  #endif

  /******************************************************************************
   * USB Gadget
   ******************************************************************************/

  #if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)

  static void balloon3_udc_command(int cmd)

  {

  	if (cmd == PXA2XX_UDC_CMD_CONNECT)
  		UP2OCR |= UP2OCR_DPPUE | UP2OCR_DPPUBE;
  	else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
  		UP2OCR &= ~UP2OCR_DPPUE;

  }

  static int balloon3_udc_is_connected(void)

  {

  	return 1;

  }

  static struct pxa2xx_udc_mach_info balloon3_udc_info __initdata = {
  	.udc_command		= balloon3_udc_command,
  	.udc_is_connected	= balloon3_udc_is_connected,
  	.gpio_pullup		= -1,

  };

  static void __init balloon3_udc_init(void)
  {
  	pxa_set_udc_info(&balloon3_udc_info);
  	platform_device_register(&balloon3_gpio_vbus);
  }
  #else
  static inline void balloon3_udc_init(void) {}
  #endif

  /******************************************************************************
   * IrDA
   ******************************************************************************/

  #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)

  static struct pxaficp_platform_data balloon3_ficp_platform_data = {

  	.transceiver_cap	= IR_FIRMODE | IR_SIRMODE | IR_OFF,

  };

  static void __init balloon3_irda_init(void)
  {
  	pxa_set_ficp_info(&balloon3_ficp_platform_data);
  }
  #else
  static inline void balloon3_irda_init(void) {}
  #endif

  /******************************************************************************
   * USB Host
   ******************************************************************************/

  #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)

  static unsigned long balloon3_uhc_pin_config[] __initdata = {
  	GPIO88_USBH1_PWR,
  	GPIO89_USBH1_PEN,
  };

  static struct pxaohci_platform_data balloon3_ohci_info = {

  	.port_mode	= PMM_PERPORT_MODE,
  	.flags		= ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
  };

  static void __init balloon3_uhc_init(void)
  {
  	if (!balloon3_has(BALLOON3_FEATURE_OHCI))
  		return;

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_uhc_pin_config));

  	pxa_set_ohci_info(&balloon3_ohci_info);
  }
  #else
  static inline void balloon3_uhc_init(void) {}
  #endif

  /******************************************************************************

   * LEDs

   ******************************************************************************/

  #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)

  static unsigned long balloon3_led_pin_config[] __initdata = {
  	GPIO9_GPIO,	/* NAND activity LED */
  	GPIO10_GPIO,	/* Heartbeat LED */
  };

  struct gpio_led balloon3_gpio_leds[] = {

  	{
  		.name			= "balloon3:green:idle",
  		.default_trigger	= "heartbeat",
  		.gpio			= BALLOON3_GPIO_LED_IDLE,
  		.active_low		= 1,

  	}, {

  		.name			= "balloon3:green:nand",
  		.default_trigger	= "nand-disk",
  		.gpio			= BALLOON3_GPIO_LED_NAND,
  		.active_low		= 1,
  	},
  };

  static struct gpio_led_platform_data balloon3_gpio_led_info = {

  	.leds		= balloon3_gpio_leds,
  	.num_leds	= ARRAY_SIZE(balloon3_gpio_leds),
  };

  static struct platform_device balloon3_leds = {

  	.name	= "leds-gpio",

  	.id	= 0,

  	.dev	= {

  		.platform_data	= &balloon3_gpio_led_info,
  	}

  };

  struct gpio_led balloon3_pcf_gpio_leds[] = {
  	{
  		.name			= "balloon3:green:led0",
  		.gpio			= BALLOON3_PCF_GPIO_LED0,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:green:led1",
  		.gpio			= BALLOON3_PCF_GPIO_LED1,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:orange:led2",
  		.gpio			= BALLOON3_PCF_GPIO_LED2,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:orange:led3",
  		.gpio			= BALLOON3_PCF_GPIO_LED3,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:orange:led4",
  		.gpio			= BALLOON3_PCF_GPIO_LED4,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:orange:led5",
  		.gpio			= BALLOON3_PCF_GPIO_LED5,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:red:led6",
  		.gpio			= BALLOON3_PCF_GPIO_LED6,
  		.active_low		= 1,
  	}, {
  		.name			= "balloon3:red:led7",
  		.gpio			= BALLOON3_PCF_GPIO_LED7,
  		.active_low		= 1,
  	},
  };
  
  static struct gpio_led_platform_data balloon3_pcf_gpio_led_info = {
  	.leds		= balloon3_pcf_gpio_leds,
  	.num_leds	= ARRAY_SIZE(balloon3_pcf_gpio_leds),
  };
  
  static struct platform_device balloon3_pcf_leds = {
  	.name	= "leds-gpio",
  	.id	= 1,
  	.dev	= {
  		.platform_data	= &balloon3_pcf_gpio_led_info,
  	}
  };

  static void __init balloon3_leds_init(void)

  {

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_led_pin_config));

  	platform_device_register(&balloon3_leds);

  	platform_device_register(&balloon3_pcf_leds);

  }

  #else
  static inline void balloon3_leds_init(void) {}
  #endif

  
  /******************************************************************************
   * FPGA IRQ
   ******************************************************************************/

  static void balloon3_mask_irq(struct irq_data *d)

  {

  	int balloon3_irq = (d->irq - BALLOON3_IRQ(0));

  	balloon3_irq_enabled &= ~(1 << balloon3_irq);
  	__raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
  }

  static void balloon3_unmask_irq(struct irq_data *d)

  {

  	int balloon3_irq = (d->irq - BALLOON3_IRQ(0));

  	balloon3_irq_enabled |= (1 << balloon3_irq);
  	__raw_writel(~balloon3_irq_enabled, BALLOON3_INT_CONTROL_REG);
  }
  
  static struct irq_chip balloon3_irq_chip = {
  	.name		= "FPGA",

  	.irq_ack	= balloon3_mask_irq,
  	.irq_mask	= balloon3_mask_irq,
  	.irq_unmask	= balloon3_unmask_irq,

  };
  
  static void balloon3_irq_handler(unsigned int irq, struct irq_desc *desc)
  {
  	unsigned long pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
  					balloon3_irq_enabled;

  	do {
  		/* clear useless edge notification */

  		if (desc->irq_data.chip->irq_ack) {
  			struct irq_data *d;
  
  			d = irq_get_irq_data(BALLOON3_AUX_NIRQ);
  			desc->irq_data.chip->irq_ack(d);
  		}

  		while (pending) {
  			irq = BALLOON3_IRQ(0) + __ffs(pending);
  			generic_handle_irq(irq);
  			pending &= pending - 1;
  		}
  		pending = __raw_readl(BALLOON3_INT_CONTROL_REG) &
  				balloon3_irq_enabled;
  	} while (pending);
  }
  
  static void __init balloon3_init_irq(void)
  {
  	int irq;
  
  	pxa27x_init_irq();
  	/* setup extra Balloon3 irqs */
  	for (irq = BALLOON3_IRQ(0); irq <= BALLOON3_IRQ(7); irq++) {

  		irq_set_chip_and_handler(irq, &balloon3_irq_chip,
  					 handle_level_irq);

  		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
  	}

  	irq_set_chained_handler(BALLOON3_AUX_NIRQ, balloon3_irq_handler);
  	irq_set_irq_type(BALLOON3_AUX_NIRQ, IRQ_TYPE_EDGE_FALLING);

  
  	pr_debug("%s: chained handler installed - irq %d automatically "
  		"enabled
  ", __func__, BALLOON3_AUX_NIRQ);
  }
  
  /******************************************************************************

   * GPIO expander
   ******************************************************************************/
  #if defined(CONFIG_GPIO_PCF857X) || defined(CONFIG_GPIO_PCF857X_MODULE)
  static struct pcf857x_platform_data balloon3_pcf857x_pdata = {
  	.gpio_base	= BALLOON3_PCF_GPIO_BASE,
  	.n_latch	= 0,
  	.setup		= NULL,
  	.teardown	= NULL,
  	.context	= NULL,
  };
  
  static struct i2c_board_info __initdata balloon3_i2c_devs[] = {
  	{
  		I2C_BOARD_INFO("pcf8574a", 0x38),
  		.platform_data	= &balloon3_pcf857x_pdata,
  	},
  };
  
  static void __init balloon3_i2c_init(void)
  {
  	pxa_set_i2c_info(NULL);
  	i2c_register_board_info(0, ARRAY_AND_SIZE(balloon3_i2c_devs));
  }
  #else
  static inline void balloon3_i2c_init(void) {}
  #endif
  
  /******************************************************************************

   * NAND
   ******************************************************************************/
  #if defined(CONFIG_MTD_NAND_PLATFORM)||defined(CONFIG_MTD_NAND_PLATFORM_MODULE)

  static void balloon3_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
  {
  	struct nand_chip *this = mtd->priv;

  	uint8_t balloon3_ctl_set = 0, balloon3_ctl_clr = 0;

  
  	if (ctrl & NAND_CTRL_CHANGE) {
  		if (ctrl & NAND_CLE)

  			balloon3_ctl_set |= BALLOON3_NAND_CONTROL_FLCLE;

  		else

  			balloon3_ctl_clr |= BALLOON3_NAND_CONTROL_FLCLE;

  
  		if (ctrl & NAND_ALE)

  			balloon3_ctl_set |= BALLOON3_NAND_CONTROL_FLALE;

  		else

  			balloon3_ctl_clr |= BALLOON3_NAND_CONTROL_FLALE;
  
  		if (balloon3_ctl_clr)
  			__raw_writel(balloon3_ctl_clr,
  				BALLOON3_NAND_CONTROL_REG);
  		if (balloon3_ctl_set)
  			__raw_writel(balloon3_ctl_set,

  				BALLOON3_NAND_CONTROL_REG +

  				BALLOON3_FPGA_SETnCLR);

  	}
  
  	if (cmd != NAND_CMD_NONE)
  		writeb(cmd, this->IO_ADDR_W);
  }
  
  static void balloon3_nand_select_chip(struct mtd_info *mtd, int chip)
  {
  	if (chip < 0 || chip > 3)
  		return;

  	/* Assert all nCE lines */
  	__raw_writew(
  		BALLOON3_NAND_CONTROL_FLCE0 | BALLOON3_NAND_CONTROL_FLCE1 |
  		BALLOON3_NAND_CONTROL_FLCE2 | BALLOON3_NAND_CONTROL_FLCE3,

  		BALLOON3_NAND_CONTROL_REG + BALLOON3_FPGA_SETnCLR);

  
  	/* Deassert correct nCE line */

  	__raw_writew(BALLOON3_NAND_CONTROL_FLCE0 << chip,
  		BALLOON3_NAND_CONTROL_REG);

  }

  static int balloon3_nand_dev_ready(struct mtd_info *mtd)
  {
  	return __raw_readl(BALLOON3_NAND_STAT_REG) & BALLOON3_NAND_STAT_RNB;
  }

  static int balloon3_nand_probe(struct platform_device *pdev)
  {

  	uint16_t ver;
  	int ret;

  	__raw_writew(BALLOON3_NAND_CONTROL2_16BIT,

  		BALLOON3_NAND_CONTROL2_REG + BALLOON3_FPGA_SETnCLR);

  
  	ver = __raw_readw(BALLOON3_FPGA_VER);

  	if (ver < 0x4f08)
  		pr_warn("The FPGA code, version 0x%04x, is too old. "

  			"NAND support might be broken in this version!", ver);
  
  	/* Power up the NAND chips */
  	ret = gpio_request(BALLOON3_GPIO_RUN_NAND, "NAND");
  	if (ret)
  		goto err1;
  
  	ret = gpio_direction_output(BALLOON3_GPIO_RUN_NAND, 1);
  	if (ret)
  		goto err2;
  
  	gpio_set_value(BALLOON3_GPIO_RUN_NAND, 1);
  
  	/* Deassert all nCE lines and write protect line */

  	__raw_writel(
  		BALLOON3_NAND_CONTROL_FLCE0 | BALLOON3_NAND_CONTROL_FLCE1 |
  		BALLOON3_NAND_CONTROL_FLCE2 | BALLOON3_NAND_CONTROL_FLCE3 |
  		BALLOON3_NAND_CONTROL_FLWP,

  		BALLOON3_NAND_CONTROL_REG + BALLOON3_FPGA_SETnCLR);

  	return 0;
  
  err2:
  	gpio_free(BALLOON3_GPIO_RUN_NAND);
  err1:
  	return ret;
  }
  
  static void balloon3_nand_remove(struct platform_device *pdev)
  {
  	/* Power down the NAND chips */
  	gpio_set_value(BALLOON3_GPIO_RUN_NAND, 0);
  	gpio_free(BALLOON3_GPIO_RUN_NAND);
  }
  
  static struct mtd_partition balloon3_partition_info[] = {
  	[0] = {
  		.name	= "Boot",
  		.offset	= 0,
  		.size	= SZ_4M,
  	},
  	[1] = {
  		.name	= "RootFS",
  		.offset	= MTDPART_OFS_APPEND,
  		.size	= MTDPART_SIZ_FULL
  	},
  };
  
  static const char *balloon3_part_probes[] = { "cmdlinepart", NULL };
  
  struct platform_nand_data balloon3_nand_pdata = {
  	.chip = {
  		.nr_chips	= 4,
  		.chip_offset	= 0,
  		.nr_partitions	= ARRAY_SIZE(balloon3_partition_info),
  		.partitions	= balloon3_partition_info,
  		.chip_delay	= 50,
  		.part_probe_types = balloon3_part_probes,
  	},
  	.ctrl = {
  		.hwcontrol	= 0,

  		.dev_ready	= balloon3_nand_dev_ready,

  		.select_chip	= balloon3_nand_select_chip,
  		.cmd_ctrl	= balloon3_nand_cmd_ctl,
  		.probe		= balloon3_nand_probe,
  		.remove		= balloon3_nand_remove,
  	},
  };
  
  static struct resource balloon3_nand_resource[] = {
  	[0] = {
  		.start = BALLOON3_NAND_BASE,
  		.end   = BALLOON3_NAND_BASE + 0x4,
  		.flags = IORESOURCE_MEM,
  	},
  };
  
  static struct platform_device balloon3_nand = {
  	.name		= "gen_nand",
  	.num_resources	= ARRAY_SIZE(balloon3_nand_resource),
  	.resource	= balloon3_nand_resource,
  	.id		= -1,
  	.dev		= {
  		.platform_data = &balloon3_nand_pdata,
  	}
  };
  
  static void __init balloon3_nand_init(void)
  {
  	platform_device_register(&balloon3_nand);
  }
  #else
  static inline void balloon3_nand_init(void) {}
  #endif
  
  /******************************************************************************

   * Core power regulator
   ******************************************************************************/
  #if defined(CONFIG_REGULATOR_MAX1586) || \
      defined(CONFIG_REGULATOR_MAX1586_MODULE)
  static struct regulator_consumer_supply balloon3_max1587a_consumers[] = {
  	{
  		.supply	= "vcc_core",
  	}
  };
  
  static struct regulator_init_data balloon3_max1587a_v3_info = {
  	.constraints = {
  		.name		= "vcc_core range",
  		.min_uV		= 900000,
  		.max_uV		= 1705000,
  		.always_on	= 1,
  		.valid_ops_mask	= REGULATOR_CHANGE_VOLTAGE,
  	},
  	.consumer_supplies	= balloon3_max1587a_consumers,
  	.num_consumer_supplies	= ARRAY_SIZE(balloon3_max1587a_consumers),
  };
  
  static struct max1586_subdev_data balloon3_max1587a_subdevs[] = {
  	{
  		.name		= "vcc_core",
  		.id		= MAX1586_V3,
  		.platform_data	= &balloon3_max1587a_v3_info,
  	}
  };
  
  static struct max1586_platform_data balloon3_max1587a_info = {
  	.subdevs     = balloon3_max1587a_subdevs,
  	.num_subdevs = ARRAY_SIZE(balloon3_max1587a_subdevs),
  	.v3_gain     = MAX1586_GAIN_R24_3k32, /* 730..1550 mV */
  };
  
  static struct i2c_board_info __initdata balloon3_pi2c_board_info[] = {
  	{
  		I2C_BOARD_INFO("max1586", 0x14),
  		.platform_data	= &balloon3_max1587a_info,
  	},
  };
  
  static void __init balloon3_pmic_init(void)
  {
  	pxa27x_set_i2c_power_info(NULL);
  	i2c_register_board_info(1, ARRAY_AND_SIZE(balloon3_pi2c_board_info));
  }
  #else
  static inline void balloon3_pmic_init(void) {}
  #endif
  
  /******************************************************************************

   * Machine init
   ******************************************************************************/

  static void __init balloon3_init(void)
  {

  	ARB_CNTRL = ARB_CORE_PARK | 0x234;

  	pxa2xx_mfp_config(ARRAY_AND_SIZE(balloon3_pin_config));

  	pxa_set_ffuart_info(NULL);
  	pxa_set_btuart_info(NULL);
  	pxa_set_stuart_info(NULL);

  	balloon3_i2c_init();

  	balloon3_irda_init();
  	balloon3_lcd_init();
  	balloon3_leds_init();
  	balloon3_mmc_init();

  	balloon3_nand_init();

  	balloon3_nor_init();

  	balloon3_pmic_init();

  	balloon3_ts_init();
  	balloon3_udc_init();
  	balloon3_uhc_init();

  	balloon3_cf_init();

  }
  
  static struct map_desc balloon3_io_desc[] __initdata = {
  	{	/* CPLD/FPGA */

  		.virtual	= (unsigned long)BALLOON3_FPGA_VIRT,

  		.pfn		= __phys_to_pfn(BALLOON3_FPGA_PHYS),
  		.length		= BALLOON3_FPGA_LENGTH,
  		.type		= MT_DEVICE,
  	},
  };
  
  static void __init balloon3_map_io(void)
  {

  	pxa27x_map_io();

  	iotable_init(balloon3_io_desc, ARRAY_SIZE(balloon3_io_desc));
  }
  
  MACHINE_START(BALLOON3, "Balloon3")
  	/* Maintainer: Nick Bane. */

  	.map_io		= balloon3_map_io,

  	.nr_irqs	= BALLOON3_NR_IRQS,

  	.init_irq	= balloon3_init_irq,

  	.handle_irq	= pxa27x_handle_irq,

  	.timer		= &pxa_timer,
  	.init_machine	= balloon3_init,

  	.atag_offset	= 0x100,

  	.restart	= pxa_restart,

  MACHINE_END