[mirror_ubuntu-artful-kernel.git] / arch / arm / mach-pxa / lubbock.c

/*
 *  linux/arch/arm/mach-pxa/lubbock.c
 *
 *  Support for the Intel DBPXA250 Development Platform.
 *
 *  Author:	Nicolas Pitre
 *  Created:	Jun 15, 2001
 *  Copyright:	MontaVista Software Inc.
 *
 *  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/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/major.h>
#include <linux/fb.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <asm/arch/pxa2xx_spi.h>

#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.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 <asm/hardware/sa1111.h>

#include <asm/arch/pxa-regs.h>
#include <asm/arch/lubbock.h>
#include <asm/arch/udc.h>
#include <asm/arch/irda.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/mmc.h>

#include "generic.h"


#define LUB_MISC_WR		__LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)

void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
{
	unsigned long flags;

	local_irq_save(flags);
	LUB_MISC_WR = (LUB_MISC_WR & ~mask) | (set & mask);
	local_irq_restore(flags);
}
EXPORT_SYMBOL(lubbock_set_misc_wr);

static unsigned long lubbock_irq_enabled;

static void lubbock_mask_irq(unsigned int irq)
{
	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
}

static void lubbock_unmask_irq(unsigned int irq)
{
	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	/* the irq can be acknowledged only if deasserted, so it's done here */
	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
	LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
}

static struct irq_chip lubbock_irq_chip = {
	.name		= "FPGA",
	.ack		= lubbock_mask_irq,
	.mask		= lubbock_mask_irq,
	.unmask		= lubbock_unmask_irq,
};

static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
				struct pt_regs *regs)
{
	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	do {
		GEDR(0) = GPIO_bit(0);	/* clear our parent irq */
		if (likely(pending)) {
			irq = LUBBOCK_IRQ(0) + __ffs(pending);
			desc = irq_desc + irq;
			desc_handle_irq(irq, desc, regs);
		}
		pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	} while (pending);
}

static void __init lubbock_init_irq(void)
{
	int irq;

	pxa_init_irq();

	/* setup extra lubbock irqs */
	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
		set_irq_chip(irq, &lubbock_irq_chip);
		set_irq_handler(irq, do_level_IRQ);
		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
	}

	set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
	set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
}

#ifdef CONFIG_PM

static int lubbock_irq_resume(struct sys_device *dev)
{
	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
	return 0;
}

static struct sysdev_class lubbock_irq_sysclass = {
	set_kset_name("cpld_irq"),
	.resume = lubbock_irq_resume,
};

static struct sys_device lubbock_irq_device = {
	.cls = &lubbock_irq_sysclass,
};

static int __init lubbock_irq_device_init(void)
{
	int ret = sysdev_class_register(&lubbock_irq_sysclass);
	if (ret == 0)
		ret = sysdev_register(&lubbock_irq_device);
	return ret;
}

device_initcall(lubbock_irq_device_init);

#endif

static int lubbock_udc_is_connected(void)
{
	return (LUB_MISC_RD & (1 << 9)) == 0;
}

static struct pxa2xx_udc_mach_info udc_info __initdata = {
	.udc_is_connected	= lubbock_udc_is_connected,
	// no D+ pullup; lubbock can't connect/disconnect in software
};

static struct platform_device lub_audio_device = {
	.name		= "pxa2xx-ac97",
	.id		= -1,
};

static struct resource sa1111_resources[] = {
	[0] = {
		.start	= 0x10000000,
		.end	= 0x10001fff,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= LUBBOCK_SA1111_IRQ,
		.end	= LUBBOCK_SA1111_IRQ,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device sa1111_device = {
	.name		= "sa1111",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(sa1111_resources),
	.resource	= sa1111_resources,
};

static struct resource smc91x_resources[] = {
	[0] = {
		.name	= "smc91x-regs",
		.start	= 0x0c000c00,
		.end	= 0x0c0fffff,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= LUBBOCK_ETH_IRQ,
		.end	= LUBBOCK_ETH_IRQ,
		.flags	= IORESOURCE_IRQ,
	},
	[2] = {
		.name	= "smc91x-attrib",
		.start	= 0x0e000000,
		.end	= 0x0e0fffff,
		.flags	= IORESOURCE_MEM,
	},
};

/* ADS7846 is connected through SSP ... and if your board has J5 populated,
 * you can select it to replace the ucb1400 by switching the touchscreen cable
 * (to J5) and poking board registers (as done below).  Else it's only useful
 * for the temperature sensors.
 */
static struct resource pxa_ssp_resources[] = {
	[0] = {
		.start	= __PREG(SSCR0_P(1)),
		.end	= __PREG(SSCR0_P(1)) + 0x14,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= IRQ_SSP,
		.end	= IRQ_SSP,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct pxa2xx_spi_master pxa_ssp_master_info = {
	.ssp_type	= PXA25x_SSP,
	.clock_enable	= CKEN3_SSP,
	.num_chipselect	= 0,
};

static struct platform_device pxa_ssp = {
	.name		= "pxa2xx-spi",
	.id		= 1,
	.resource	= pxa_ssp_resources,
	.num_resources	= ARRAY_SIZE(pxa_ssp_resources),
	.dev = {
		.platform_data	= &pxa_ssp_master_info,
	},
};

static int lubbock_ads7846_pendown_state(void)
{
	/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
	return 0;
}

static struct ads7846_platform_data ads_info = {
	.model			= 7846,
	.vref_delay_usecs	= 100,		/* internal, no cap */
	.get_pendown_state	= lubbock_ads7846_pendown_state,
	// .x_plate_ohms		= 500,	/* GUESS! */
	// .y_plate_ohms		= 500,	/* GUESS! */
};

static void ads7846_cs(u32 command)
{
	static const unsigned	TS_nCS = 1 << 11;
	lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
}

static struct pxa2xx_spi_chip ads_hw = {
	.tx_threshold		= 1,
	.rx_threshold		= 2,
	.cs_control		= ads7846_cs,
};

static struct spi_board_info spi_board_info[] __initdata = { {
	.modalias	= "ads7846",
	.platform_data	= &ads_info,
	.controller_data = &ads_hw,
	.irq		= LUBBOCK_BB_IRQ,
	.max_speed_hz	= 120000 /* max sample rate at 3V */
				* 26 /* command + data + overhead */,
	.bus_num	= 1,
	.chip_select	= 0,
},
};

static struct platform_device smc91x_device = {
	.name		= "smc91x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,
};

static struct resource flash_resources[] = {
	[0] = {
		.start	= 0x00000000,
		.end	= SZ_64M - 1,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= 0x04000000,
		.end	= 0x04000000 + SZ_64M - 1,
		.flags	= IORESOURCE_MEM,
	},
};

static struct mtd_partition lubbock_partitions[] = {
	{
		.name =		"Bootloader",
		.size =		0x00040000,
		.offset =	0,
		.mask_flags =	MTD_WRITEABLE  /* force read-only */
	},{
		.name =		"Kernel",
		.size =		0x00100000,
		.offset =	0x00040000,
	},{
		.name =		"Filesystem",
		.size =		MTDPART_SIZ_FULL,
		.offset =	0x00140000
	}
};

static struct flash_platform_data lubbock_flash_data[2] = {
	{
		.map_name	= "cfi_probe",
		.parts		= lubbock_partitions,
		.nr_parts	= ARRAY_SIZE(lubbock_partitions),
	}, {
		.map_name	= "cfi_probe",
		.parts		= NULL,
		.nr_parts	= 0,
	}
};

static struct platform_device lubbock_flash_device[2] = {
	{
		.name		= "pxa2xx-flash",
		.id		= 0,
		.dev = {
			.platform_data = &lubbock_flash_data[0],
		},
		.resource = &flash_resources[0],
		.num_resources = 1,
	},
	{
		.name		= "pxa2xx-flash",
		.id		= 1,
		.dev = {
			.platform_data = &lubbock_flash_data[1],
		},
		.resource = &flash_resources[1],
		.num_resources = 1,
	},
};

static struct platform_device *devices[] __initdata = {
	&sa1111_device,
	&lub_audio_device,
	&smc91x_device,
	&lubbock_flash_device[0],
	&lubbock_flash_device[1],
	&pxa_ssp,
};

static struct pxafb_mach_info sharp_lm8v31 __initdata = {
	.pixclock	= 270000,
	.xres		= 640,
	.yres		= 480,
	.bpp		= 16,
	.hsync_len	= 1,
	.left_margin	= 3,
	.right_margin	= 3,
	.vsync_len	= 1,
	.upper_margin	= 0,
	.lower_margin	= 0,
	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	.cmap_greyscale	= 0,
	.cmap_inverse	= 0,
	.cmap_static	= 0,
	.lccr0		= LCCR0_SDS,
	.lccr3		= LCCR3_PCP | LCCR3_Acb(255),
};

#define	MMC_POLL_RATE		msecs_to_jiffies(1000)

static void lubbock_mmc_poll(unsigned long);
static irqreturn_t (*mmc_detect_int)(int, void *, struct pt_regs *);

static struct timer_list mmc_timer = {
	.function	= lubbock_mmc_poll,
};

static void lubbock_mmc_poll(unsigned long data)
{
	unsigned long flags;

	/* clear any previous irq state, then ... */
	local_irq_save(flags);
	LUB_IRQ_SET_CLR &= ~(1 << 0);
	local_irq_restore(flags);

	/* poll until mmc/sd card is removed */
	if (LUB_IRQ_SET_CLR & (1 << 0))
		mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	else {
		(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL);
		enable_irq(LUBBOCK_SD_IRQ);
	}
}

static irqreturn_t lubbock_detect_int(int irq, void *data, struct pt_regs *regs)
{
	/* IRQ is level triggered; disable, and poll for removal */
	disable_irq(irq);
	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);

	return mmc_detect_int(irq, data, regs);
}

static int lubbock_mci_init(struct device *dev,
		irqreturn_t (*detect_int)(int, void *, struct pt_regs *),
		void *data)
{
	/* setup GPIO for PXA25x MMC controller	*/
	pxa_gpio_mode(GPIO6_MMCCLK_MD);
	pxa_gpio_mode(GPIO8_MMCCS0_MD);

	/* detect card insert/eject */
	mmc_detect_int = detect_int;
	init_timer(&mmc_timer);
	mmc_timer.data = (unsigned long) data;
	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
			IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
}

static int lubbock_mci_get_ro(struct device *dev)
{
	return (LUB_MISC_RD & (1 << 2)) != 0;
}

static void lubbock_mci_exit(struct device *dev, void *data)
{
	free_irq(LUBBOCK_SD_IRQ, data);
	del_timer_sync(&mmc_timer);
}

static struct pxamci_platform_data lubbock_mci_platform_data = {
	.ocr_mask	= MMC_VDD_32_33|MMC_VDD_33_34,
	.detect_delay	= 1,
	.init 		= lubbock_mci_init,
	.get_ro		= lubbock_mci_get_ro,
	.exit 		= lubbock_mci_exit,
};

static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
{
	unsigned long flags;

	local_irq_save(flags);
	if (mode & IR_SIRMODE) {
		LUB_MISC_WR &= ~(1 << 4);
	} else if (mode & IR_FIRMODE) {
		LUB_MISC_WR |= 1 << 4;
	}
	local_irq_restore(flags);
}

static struct pxaficp_platform_data lubbock_ficp_platform_data = {
	.transceiver_cap  = IR_SIRMODE | IR_FIRMODE,
	.transceiver_mode = lubbock_irda_transceiver_mode,
};

static void __init lubbock_init(void)
{
	int flashboot = (LUB_CONF_SWITCHES & 1);

	pxa_set_udc_info(&udc_info);
	set_pxa_fb_info(&sharp_lm8v31);
	pxa_set_mci_info(&lubbock_mci_platform_data);
	pxa_set_ficp_info(&lubbock_ficp_platform_data);

	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
		(BOOT_DEF & 1) ? 2 : 4;
	/* Compensate for the nROMBT switch which swaps the flash banks */
	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
	       flashboot?"Flash":"ROM", flashboot);

	lubbock_flash_data[flashboot^1].name = "application-flash";
	lubbock_flash_data[flashboot].name = "boot-rom";
	(void) platform_add_devices(devices, ARRAY_SIZE(devices));

	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}

static struct map_desc lubbock_io_desc[] __initdata = {
  	{	/* CPLD */
		.virtual	=  LUBBOCK_FPGA_VIRT,
		.pfn		= __phys_to_pfn(LUBBOCK_FPGA_PHYS),
		.length		= 0x00100000,
		.type		= MT_DEVICE
	}
};

static void __init lubbock_map_io(void)
{
	pxa_map_io();
	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));

	/* SSP data pins */
	pxa_gpio_mode(GPIO23_SCLK_MD);
	pxa_gpio_mode(GPIO25_STXD_MD);
	pxa_gpio_mode(GPIO26_SRXD_MD);

	/* This enables the BTUART */
	pxa_gpio_mode(GPIO42_BTRXD_MD);
	pxa_gpio_mode(GPIO43_BTTXD_MD);
	pxa_gpio_mode(GPIO44_BTCTS_MD);
	pxa_gpio_mode(GPIO45_BTRTS_MD);

	/* This is for the SMC chip select */
	pxa_gpio_mode(GPIO79_nCS_3_MD);

	/* setup sleep mode values */
	PWER  = 0x00000002;
	PFER  = 0x00000000;
	PRER  = 0x00000002;
	PGSR0 = 0x00008000;
	PGSR1 = 0x003F0202;
	PGSR2 = 0x0001C000;
	PCFR |= PCFR_OPDE;
}

MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
	/* Maintainer: MontaVista Software Inc. */
	.phys_io	= 0x40000000,
	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
	.map_io		= lubbock_map_io,
	.init_irq	= lubbock_init_irq,
	.timer		= &pxa_timer,
	.init_machine	= lubbock_init,
MACHINE_END
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/arm/mach-pxa/lubbock.c
	3	*
	4	* Support for the Intel DBPXA250 Development Platform.
	5	*
	6	* Author: Nicolas Pitre
	7	* Created: Jun 15, 2001
	8	* Copyright: MontaVista Software Inc.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License version 2 as
	12	* published by the Free Software Foundation.
	13	*/
	14	#include <linux/module.h>
	15	#include <linux/kernel.h>
	16	#include <linux/init.h>
d052d1be	17	#include <linux/platform_device.h>
22f11c4e	18	#include <linux/sysdev.h>
1da177e4 LT	19	#include <linux/major.h>
	20	#include <linux/fb.h>
	21	#include <linux/interrupt.h>
74ec71e1 TP	22	#include <linux/mtd/mtd.h>
74ec71e1 TP	23	#include <linux/mtd/partitions.h>
1da177e4	24
9df5db80 DB	25	#include <linux/spi/spi.h>
	26	#include <linux/spi/ads7846.h>
	27	#include <asm/arch/pxa2xx_spi.h>
	28
1da177e4 LT	29	#include <asm/setup.h>
	30	#include <asm/memory.h>
	31	#include <asm/mach-types.h>
	32	#include <asm/hardware.h>
	33	#include <asm/irq.h>
74ec71e1	34	#include <asm/sizes.h>
1da177e4 LT	35
	36	#include <asm/mach/arch.h>
	37	#include <asm/mach/map.h>
	38	#include <asm/mach/irq.h>
74ec71e1	39	#include <asm/mach/flash.h>
1da177e4 LT	40
	41	#include <asm/hardware/sa1111.h>
	42
	43	#include <asm/arch/pxa-regs.h>
	44	#include <asm/arch/lubbock.h>
	45	#include <asm/arch/udc.h>
6f475c01	46	#include <asm/arch/irda.h>
1da177e4 LT	47	#include <asm/arch/pxafb.h>
	48	#include <asm/arch/mmc.h>
	49
	50	#include "generic.h"
	51
	52
	53	#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
	54
	55	void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
	56	{
	57	unsigned long flags;
	58
	59	local_irq_save(flags);
	60	LUB_MISC_WR = (LUB_MISC_WR & ~mask) \| (set & mask);
	61	local_irq_restore(flags);
	62	}
	63	EXPORT_SYMBOL(lubbock_set_misc_wr);
	64
	65	static unsigned long lubbock_irq_enabled;
	66
	67	static void lubbock_mask_irq(unsigned int irq)
	68	{
	69	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	70	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
	71	}
	72
	73	static void lubbock_unmask_irq(unsigned int irq)
	74	{
	75	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	76	/* the irq can be acknowledged only if deasserted, so it's done here */
	77	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
	78	LUB_IRQ_MASK_EN = (lubbock_irq_enabled \|= (1 << lubbock_irq));
	79	}
	80
38c677cb DB	81	static struct irq_chip lubbock_irq_chip = {
38c677cb DB	82	.name = "FPGA",
1da177e4 LT	83	.ack = lubbock_mask_irq,
	84	.mask = lubbock_mask_irq,
	85	.unmask = lubbock_unmask_irq,
	86	};
	87
	88	static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
	89	struct pt_regs *regs)
	90	{
	91	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	92	do {
	93	GEDR(0) = GPIO_bit(0); /* clear our parent irq */
	94	if (likely(pending)) {
	95	irq = LUBBOCK_IRQ(0) + __ffs(pending);
	96	desc = irq_desc + irq;
664399e1	97	desc_handle_irq(irq, desc, regs);
1da177e4 LT	98	}
	99	pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	100	} while (pending);
	101	}
	102
	103	static void __init lubbock_init_irq(void)
	104	{
	105	int irq;
	106
	107	pxa_init_irq();
	108
	109	/* setup extra lubbock irqs */
	110	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
	111	set_irq_chip(irq, &lubbock_irq_chip);
	112	set_irq_handler(irq, do_level_IRQ);
	113	set_irq_flags(irq, IRQF_VALID \| IRQF_PROBE);
	114	}
	115
	116	set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
	117	set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
	118	}
	119
22f11c4e NP	120	#ifdef CONFIG_PM
	121
	122	static int lubbock_irq_resume(struct sys_device *dev)
	123	{
	124	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
	125	return 0;
	126	}
	127
	128	static struct sysdev_class lubbock_irq_sysclass = {
	129	set_kset_name("cpld_irq"),
	130	.resume = lubbock_irq_resume,
	131	};
	132
	133	static struct sys_device lubbock_irq_device = {
	134	.cls = &lubbock_irq_sysclass,
	135	};
	136
	137	static int __init lubbock_irq_device_init(void)
	138	{
	139	int ret = sysdev_class_register(&lubbock_irq_sysclass);
	140	if (ret == 0)
	141	ret = sysdev_register(&lubbock_irq_device);
	142	return ret;
	143	}
	144
	145	device_initcall(lubbock_irq_device_init);
	146
	147	#endif
	148
1da177e4 LT	149	static int lubbock_udc_is_connected(void)
	150	{
	151	return (LUB_MISC_RD & (1 << 9)) == 0;
	152	}
	153
	154	static struct pxa2xx_udc_mach_info udc_info __initdata = {
	155	.udc_is_connected = lubbock_udc_is_connected,
	156	// no D+ pullup; lubbock can't connect/disconnect in software
	157	};
	158
2cef2d55 NP	159	static struct platform_device lub_audio_device = {
	160	.name = "pxa2xx-ac97",
	161	.id = -1,
	162	};
	163
1da177e4 LT	164	static struct resource sa1111_resources[] = {
	165	[0] = {
	166	.start = 0x10000000,
	167	.end = 0x10001fff,
	168	.flags = IORESOURCE_MEM,
	169	},
	170	[1] = {
	171	.start = LUBBOCK_SA1111_IRQ,
	172	.end = LUBBOCK_SA1111_IRQ,
	173	.flags = IORESOURCE_IRQ,
	174	},
	175	};
	176
	177	static struct platform_device sa1111_device = {
	178	.name = "sa1111",
	179	.id = -1,
	180	.num_resources = ARRAY_SIZE(sa1111_resources),
	181	.resource = sa1111_resources,
	182	};
	183
	184	static struct resource smc91x_resources[] = {
	185	[0] = {
	186	.name = "smc91x-regs",
85eb226c	187	.start = 0x0c000c00,
1da177e4 LT	188	.end = 0x0c0fffff,
	189	.flags = IORESOURCE_MEM,
	190	},
	191	[1] = {
	192	.start = LUBBOCK_ETH_IRQ,
	193	.end = LUBBOCK_ETH_IRQ,
	194	.flags = IORESOURCE_IRQ,
	195	},
	196	[2] = {
	197	.name = "smc91x-attrib",
	198	.start = 0x0e000000,
	199	.end = 0x0e0fffff,
	200	.flags = IORESOURCE_MEM,
	201	},
	202	};
	203
9df5db80 DB	204	/* ADS7846 is connected through SSP ... and if your board has J5 populated,
	205	* you can select it to replace the ucb1400 by switching the touchscreen cable
	206	* (to J5) and poking board registers (as done below). Else it's only useful
	207	* for the temperature sensors.
	208	*/
	209	static struct resource pxa_ssp_resources[] = {
	210	[0] = {
	211	.start = __PREG(SSCR0_P(1)),
	212	.end = __PREG(SSCR0_P(1)) + 0x14,
	213	.flags = IORESOURCE_MEM,
	214	},
	215	[1] = {
	216	.start = IRQ_SSP,
	217	.end = IRQ_SSP,
	218	.flags = IORESOURCE_IRQ,
	219	},
	220	};
	221
	222	static struct pxa2xx_spi_master pxa_ssp_master_info = {
	223	.ssp_type = PXA25x_SSP,
	224	.clock_enable = CKEN3_SSP,
	225	.num_chipselect = 0,
	226	};
	227
	228	static struct platform_device pxa_ssp = {
	229	.name = "pxa2xx-spi",
	230	.id = 1,
	231	.resource = pxa_ssp_resources,
	232	.num_resources = ARRAY_SIZE(pxa_ssp_resources),
	233	.dev = {
	234	.platform_data = &pxa_ssp_master_info,
	235	},
	236	};
	237
	238	static int lubbock_ads7846_pendown_state(void)
	239	{
	240	/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
	241	return 0;
	242	}
	243
	244	static struct ads7846_platform_data ads_info = {
	245	.model = 7846,
	246	.vref_delay_usecs = 100, /* internal, no cap */
	247	.get_pendown_state = lubbock_ads7846_pendown_state,
	248	// .x_plate_ohms = 500, /* GUESS! */
	249	// .y_plate_ohms = 500, /* GUESS! */
	250	};
	251
	252	static void ads7846_cs(u32 command)
	253	{
	254	static const unsigned TS_nCS = 1 << 11;
	255	lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
	256	}
	257
	258	static struct pxa2xx_spi_chip ads_hw = {
	259	.tx_threshold = 1,
	260	.rx_threshold = 2,
	261	.cs_control = ads7846_cs,
	262	};
	263
	264	static struct spi_board_info spi_board_info[] __initdata = { {
	265	.modalias = "ads7846",
	266	.platform_data = &ads_info,
	267	.controller_data = &ads_hw,
268	.irq = LUBBOCK_BB_IRQ,
269	.max_speed_hz = 120000 /* max sample rate at 3V */
270	* 26 /* command + data + overhead */,
271	.bus_num = 1,
272	.chip_select = 0,
273	},
274	};
275
1da177e4 LT	276	static struct platform_device smc91x_device = {
	277	.name = "smc91x",
	278	.id = -1,
	279	.num_resources = ARRAY_SIZE(smc91x_resources),
	280	.resource = smc91x_resources,
	281	};
	282
74ec71e1 TP	283	static struct resource flash_resources[] = {
	284	[0] = {
	285	.start = 0x00000000,
	286	.end = SZ_64M - 1,
	287	.flags = IORESOURCE_MEM,
	288	},
	289	[1] = {
	290	.start = 0x04000000,
	291	.end = 0x04000000 + SZ_64M - 1,
	292	.flags = IORESOURCE_MEM,
	293	},
	294	};
	295
	296	static struct mtd_partition lubbock_partitions[] = {
	297	{
	298	.name = "Bootloader",
	299	.size = 0x00040000,
	300	.offset = 0,
	301	.mask_flags = MTD_WRITEABLE /* force read-only */
	302	},{
	303	.name = "Kernel",
	304	.size = 0x00100000,
	305	.offset = 0x00040000,
	306	},{
	307	.name = "Filesystem",
	308	.size = MTDPART_SIZ_FULL,
	309	.offset = 0x00140000
	310	}
	311	};
	312
	313	static struct flash_platform_data lubbock_flash_data[2] = {
	314	{
	315	.map_name = "cfi_probe",
	316	.parts = lubbock_partitions,
	317	.nr_parts = ARRAY_SIZE(lubbock_partitions),
	318	}, {
	319	.map_name = "cfi_probe",
	320	.parts = NULL,
	321	.nr_parts = 0,
	322	}
	323	};
	324
	325	static struct platform_device lubbock_flash_device[2] = {
	326	{
	327	.name = "pxa2xx-flash",
	328	.id = 0,
	329	.dev = {
	330	.platform_data = &lubbock_flash_data[0],
	331	},
	332	.resource = &flash_resources[0],
	333	.num_resources = 1,
	334	},
	335	{
	336	.name = "pxa2xx-flash",
	337	.id = 1,
	338	.dev = {
	339	.platform_data = &lubbock_flash_data[1],
	340	},
	341	.resource = &flash_resources[1],
	342	.num_resources = 1,
	343	},
	344	};
	345
1da177e4 LT	346	static struct platform_device *devices[] __initdata = {
1da177e4 LT	347	&sa1111_device,
2cef2d55	348	&lub_audio_device,
1da177e4	349	&smc91x_device,
74ec71e1 TP	350	&lubbock_flash_device[0],
74ec71e1 TP	351	&lubbock_flash_device[1],
9df5db80	352	&pxa_ssp,
1da177e4 LT	353	};
	354
	355	static struct pxafb_mach_info sharp_lm8v31 __initdata = {
	356	.pixclock = 270000,
	357	.xres = 640,
	358	.yres = 480,
	359	.bpp = 16,
	360	.hsync_len = 1,
	361	.left_margin = 3,
	362	.right_margin = 3,
	363	.vsync_len = 1,
	364	.upper_margin = 0,
	365	.lower_margin = 0,
	366	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	367	.cmap_greyscale = 0,
	368	.cmap_inverse = 0,
	369	.cmap_static = 0,
	370	.lccr0 = LCCR0_SDS,
	371	.lccr3 = LCCR3_PCP \| LCCR3_Acb(255),
	372	};
	373
85eb226c DB	374	#define MMC_POLL_RATE msecs_to_jiffies(1000)
	375
	376	static void lubbock_mmc_poll(unsigned long);
	377	static irqreturn_t (mmc_detect_int)(int, void , struct pt_regs *);
	378
	379	static struct timer_list mmc_timer = {
	380	.function = lubbock_mmc_poll,
	381	};
	382
	383	static void lubbock_mmc_poll(unsigned long data)
	384	{
	385	unsigned long flags;
	386
	387	/* clear any previous irq state, then ... */
	388	local_irq_save(flags);
	389	LUB_IRQ_SET_CLR &= ~(1 << 0);
	390	local_irq_restore(flags);
	391
	392	/* poll until mmc/sd card is removed */
	393	if (LUB_IRQ_SET_CLR & (1 << 0))
	394	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	395	else {
	396	(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL);
	397	enable_irq(LUBBOCK_SD_IRQ);
	398	}
	399	}
	400
	401	static irqreturn_t lubbock_detect_int(int irq, void data, struct pt_regs regs)
	402	{
	403	/* IRQ is level triggered; disable, and poll for removal */
	404	disable_irq(irq);
	405	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	406
	407	return mmc_detect_int(irq, data, regs);
	408	}
	409
	410	static int lubbock_mci_init(struct device *dev,
	411	irqreturn_t (detect_int)(int, void , struct pt_regs *),
	412	void *data)
1da177e4 LT	413	{
	414	/* setup GPIO for PXA25x MMC controller */
	415	pxa_gpio_mode(GPIO6_MMCCLK_MD);
	416	pxa_gpio_mode(GPIO8_MMCCS0_MD);
	417
85eb226c DB	418	/* detect card insert/eject */
	419	mmc_detect_int = detect_int;
	420	init_timer(&mmc_timer);
	421	mmc_timer.data = (unsigned long) data;
	422	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea	423	IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c DB	424	}
	425
	426	static int lubbock_mci_get_ro(struct device *dev)
	427	{
	428	return (LUB_MISC_RD & (1 << 2)) != 0;
	429	}
	430
	431	static void lubbock_mci_exit(struct device dev, void data)
	432	{
	433	free_irq(LUBBOCK_SD_IRQ, data);
	434	del_timer_sync(&mmc_timer);
1da177e4 LT	435	}
	436
	437	static struct pxamci_platform_data lubbock_mci_platform_data = {
	438	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
85eb226c	439	.detect_delay = 1,
1da177e4	440	.init = lubbock_mci_init,
85eb226c DB	441	.get_ro = lubbock_mci_get_ro,
85eb226c DB	442	.exit = lubbock_mci_exit,
1da177e4 LT	443	};
1da177e4 LT	444
6f475c01 NP	445	static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
	446	{
	447	unsigned long flags;
	448
	449	local_irq_save(flags);
	450	if (mode & IR_SIRMODE) {
	451	LUB_MISC_WR &= ~(1 << 4);
	452	} else if (mode & IR_FIRMODE) {
	453	LUB_MISC_WR \|= 1 << 4;
	454	}
	455	local_irq_restore(flags);
	456	}
	457
	458	static struct pxaficp_platform_data lubbock_ficp_platform_data = {
	459	.transceiver_cap = IR_SIRMODE \| IR_FIRMODE,
	460	.transceiver_mode = lubbock_irda_transceiver_mode,
	461	};
	462
1da177e4 LT	463	static void __init lubbock_init(void)
1da177e4 LT	464	{
74ec71e1 TP	465	int flashboot = (LUB_CONF_SWITCHES & 1);
74ec71e1 TP	466
1da177e4 LT	467	pxa_set_udc_info(&udc_info);
	468	set_pxa_fb_info(&sharp_lm8v31);
	469	pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01	470	pxa_set_ficp_info(&lubbock_ficp_platform_data);
74ec71e1 TP	471
	472	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
	473	(BOOT_DEF & 1) ? 2 : 4;
	474	/* Compensate for the nROMBT switch which swaps the flash banks */
	475	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
	476	flashboot?"Flash":"ROM", flashboot);
	477
	478	lubbock_flash_data[flashboot^1].name = "application-flash";
	479	lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4	480	(void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80 DB	481
9df5db80 DB	482	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4 LT	483	}
	484
	485	static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb DS	486	{ /* CPLD */
	487	.virtual = LUBBOCK_FPGA_VIRT,
	488	.pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
	489	.length = 0x00100000,
	490	.type = MT_DEVICE
	491	}
1da177e4 LT	492	};
	493
	494	static void __init lubbock_map_io(void)
	495	{
	496	pxa_map_io();
	497	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
	498
9df5db80 DB	499	/* SSP data pins */
	500	pxa_gpio_mode(GPIO23_SCLK_MD);
	501	pxa_gpio_mode(GPIO25_STXD_MD);
	502	pxa_gpio_mode(GPIO26_SRXD_MD);
	503
1da177e4 LT	504	/* This enables the BTUART */
	505	pxa_gpio_mode(GPIO42_BTRXD_MD);
	506	pxa_gpio_mode(GPIO43_BTTXD_MD);
	507	pxa_gpio_mode(GPIO44_BTCTS_MD);
	508	pxa_gpio_mode(GPIO45_BTRTS_MD);
	509
	510	/* This is for the SMC chip select */
	511	pxa_gpio_mode(GPIO79_nCS_3_MD);
	512
	513	/* setup sleep mode values */
	514	PWER = 0x00000002;
	515	PFER = 0x00000000;
	516	PRER = 0x00000002;
	517	PGSR0 = 0x00008000;
	518	PGSR1 = 0x003F0202;
	519	PGSR2 = 0x0001C000;
	520	PCFR \|= PCFR_OPDE;
	521	}
	522
	523	MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6	524	/* Maintainer: MontaVista Software Inc. */
e9dea0c6	525	.phys_io = 0x40000000,
68070bde	526	.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 RK	527	.map_io = lubbock_map_io,
e9dea0c6 RK	528	.init_irq = lubbock_init_irq,
1da177e4	529	.timer = &pxa_timer,
e9dea0c6	530	.init_machine = lubbock_init,
1da177e4	531	MACHINE_END