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							- /*
 
-  *  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 <linux/platform_data/video-pxafb.h>
 
- #include <linux/platform_data/mmc-pxamci.h>
 
- #include <mach/udc.h>
 
- #include <mach/pxa27x-udc.h>
 
- #include <linux/platform_data/irda-pxaficp.h>
 
- #include <linux/platform_data/usb-ohci-pxa27x.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!\n");
 
- 		goto err;
 
- 	}
 
- 	ret = gpio_direction_output(BALLOON3_GPIO_RUN_BACKLIGHT, 1);
 
- 	if (ret) {
 
- 		pr_err("Setting BKL-ON GPIO direction failed!\n");
 
- 		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\n", __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
 
- 	},
 
- };
 
- 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,
 
- 	},
 
- 	.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[] = {
 
- 	REGULATOR_SUPPLY("vcc_core", NULL),
 
- };
 
- 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
 
 
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