[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/pxa2xx-regs.h>
#include <asm/arch/mfp-pxa25x.h>
#include <asm/arch/audio.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"
#include "devices.h"

static unsigned long lubbock_pin_config[] __initdata = {
	GPIO15_nCS_1,	/* CS1 - Flash */
	GPIO79_nCS_3,	/* CS3 - SMC ethernet */

	/* SSP data pins */
	GPIO23_SSP1_SCLK,
	GPIO25_SSP1_TXD,
	GPIO26_SSP1_RXD,

	/* BTUART */
	GPIO42_BTUART_RXD,
	GPIO43_BTUART_TXD,
	GPIO44_BTUART_CTS,
	GPIO45_BTUART_RTS,

	/* PC Card */
	GPIO48_nPOE,
	GPIO49_nPWE,
	GPIO50_nPIOR,
	GPIO51_nPIOW,
	GPIO52_nPCE_1,
	GPIO53_nPCE_2,
	GPIO54_nPSKTSEL,
	GPIO55_nPREG,
	GPIO56_nPWAIT,
	GPIO57_nIOIS16,

	/* MMC */
	GPIO6_MMC_CLK,
	GPIO8_MMC_CS0,

	/* wakeup */
	GPIO1_GPIO | WAKEUP_ON_EDGE_RISE,
};

#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 irq_desc *desc)
{
	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);
		}
		pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	} while (pending);
}

static void __init lubbock_init_irq(void)
{
	int irq;

	pxa25x_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, handle_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 = {
	.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 = -ENODEV;

	if (machine_is_lubbock()) {
		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 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,
};

/* 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 pxa2xx_spi_master pxa_ssp_master_info = {
	.num_chipselect	= 0,
};

static struct platform_device pxa_ssp = {
	.name		= "pxa2xx-spi",
	.id		= 1,
	.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 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 | IORESOURCE_IRQ_HIGHEDGE,
	},
	[2] = {
		.name	= "smc91x-attrib",
		.start	= 0x0e000000,
		.end	= 0x0e0fffff,
		.flags	= IORESOURCE_MEM,
	},
};

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,
	&smc91x_device,
	&lubbock_flash_device[0],
	&lubbock_flash_device[1],
	&pxa_ssp,
};

static struct pxafb_mode_info sharp_lm8v31_mode = {
	.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,
};

static struct pxafb_mach_info sharp_lm8v31 = {
	.modes		= &sharp_lm8v31_mode,
	.num_modes	= 1,
	.cmap_inverse	= 0,
	.cmap_static	= 0,
	.lcd_conn	= LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL |
			  LCD_AC_BIAS_FREQ(255),
};

#define	MMC_POLL_RATE		msecs_to_jiffies(1000)

static void lubbock_mmc_poll(unsigned long);
static irq_handler_t mmc_detect_int;

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);
		enable_irq(LUBBOCK_SD_IRQ);
	}
}

static irqreturn_t lubbock_detect_int(int irq, void *data)
{
	/* 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);
}

static int lubbock_mci_init(struct device *dev,
		irq_handler_t detect_int,
		void *data)
{
	/* 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);

	pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));

	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);
	pxa_set_ac97_info(NULL);

	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));

	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>
8785a8fb	44	#include <asm/arch/pxa2xx-regs.h>
9b02b2df	45	#include <asm/arch/mfp-pxa25x.h>
9f19d638	46	#include <asm/arch/audio.h>
1da177e4 LT	47	#include <asm/arch/lubbock.h>
1da177e4 LT	48	#include <asm/arch/udc.h>
6f475c01	49	#include <asm/arch/irda.h>
1da177e4 LT	50	#include <asm/arch/pxafb.h>
	51	#include <asm/arch/mmc.h>
	52
	53	#include "generic.h"
46c41e62	54	#include "devices.h"
1da177e4	55
9b02b2df	56	static unsigned long lubbock_pin_config[] __initdata = {
	57	GPIO15_nCS_1, /* CS1 - Flash */
	58	GPIO79_nCS_3, /* CS3 - SMC ethernet */
	59
	60	/* SSP data pins */
	61	GPIO23_SSP1_SCLK,
	62	GPIO25_SSP1_TXD,
	63	GPIO26_SSP1_RXD,
	64
	65	/* BTUART */
	66	GPIO42_BTUART_RXD,
	67	GPIO43_BTUART_TXD,
	68	GPIO44_BTUART_CTS,
	69	GPIO45_BTUART_RTS,
	70
	71	/* PC Card */
	72	GPIO48_nPOE,
	73	GPIO49_nPWE,
	74	GPIO50_nPIOR,
	75	GPIO51_nPIOW,
	76	GPIO52_nPCE_1,
	77	GPIO53_nPCE_2,
	78	GPIO54_nPSKTSEL,
	79	GPIO55_nPREG,
	80	GPIO56_nPWAIT,
	81	GPIO57_nIOIS16,
	82
	83	/* MMC */
	84	GPIO6_MMC_CLK,
	85	GPIO8_MMC_CS0,
	86
	87	/* wakeup */
	88	GPIO1_GPIO \| WAKEUP_ON_EDGE_RISE,
	89	};
1da177e4 LT	90
	91	#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
	92
	93	void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
	94	{
	95	unsigned long flags;
	96
	97	local_irq_save(flags);
	98	LUB_MISC_WR = (LUB_MISC_WR & ~mask) \| (set & mask);
	99	local_irq_restore(flags);
	100	}
	101	EXPORT_SYMBOL(lubbock_set_misc_wr);
	102
	103	static unsigned long lubbock_irq_enabled;
	104
	105	static void lubbock_mask_irq(unsigned int irq)
	106	{
	107	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	108	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
	109	}
	110
	111	static void lubbock_unmask_irq(unsigned int irq)
	112	{
	113	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	114	/* the irq can be acknowledged only if deasserted, so it's done here */
	115	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
	116	LUB_IRQ_MASK_EN = (lubbock_irq_enabled \|= (1 << lubbock_irq));
	117	}
	118
38c677cb DB	119	static struct irq_chip lubbock_irq_chip = {
38c677cb DB	120	.name = "FPGA",
1da177e4 LT	121	.ack = lubbock_mask_irq,
	122	.mask = lubbock_mask_irq,
	123	.unmask = lubbock_unmask_irq,
	124	};
	125
10dd5ce2	126	static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
1da177e4 LT	127	{
	128	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	129	do {
	130	GEDR(0) = GPIO_bit(0); /* clear our parent irq */
	131	if (likely(pending)) {
	132	irq = LUBBOCK_IRQ(0) + __ffs(pending);
	133	desc = irq_desc + irq;
0cd61b68	134	desc_handle_irq(irq, desc);
1da177e4 LT	135	}
	136	pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	137	} while (pending);
	138	}
	139
	140	static void __init lubbock_init_irq(void)
	141	{
	142	int irq;
	143
cd49104d	144	pxa25x_init_irq();
1da177e4 LT	145
	146	/* setup extra lubbock irqs */
	147	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
	148	set_irq_chip(irq, &lubbock_irq_chip);
10dd5ce2	149	set_irq_handler(irq, handle_level_irq);
1da177e4 LT	150	set_irq_flags(irq, IRQF_VALID \| IRQF_PROBE);
	151	}
	152
	153	set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
	154	set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
	155	}
	156
22f11c4e NP	157	#ifdef CONFIG_PM
	158
	159	static int lubbock_irq_resume(struct sys_device *dev)
	160	{
	161	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
	162	return 0;
	163	}
	164
	165	static struct sysdev_class lubbock_irq_sysclass = {
af5ca3f4	166	.name = "cpld_irq",
22f11c4e NP	167	.resume = lubbock_irq_resume,
	168	};
	169
	170	static struct sys_device lubbock_irq_device = {
	171	.cls = &lubbock_irq_sysclass,
	172	};
	173
	174	static int __init lubbock_irq_device_init(void)
	175	{
16f159b1 RK	176	int ret = -ENODEV;
	177
	178	if (machine_is_lubbock()) {
	179	ret = sysdev_class_register(&lubbock_irq_sysclass);
	180	if (ret == 0)
	181	ret = sysdev_register(&lubbock_irq_device);
	182	}
22f11c4e NP	183	return ret;
	184	}
	185
	186	device_initcall(lubbock_irq_device_init);
	187
	188	#endif
	189
1da177e4 LT	190	static int lubbock_udc_is_connected(void)
	191	{
	192	return (LUB_MISC_RD & (1 << 9)) == 0;
	193	}
	194
	195	static struct pxa2xx_udc_mach_info udc_info __initdata = {
	196	.udc_is_connected = lubbock_udc_is_connected,
	197	// no D+ pullup; lubbock can't connect/disconnect in software
	198	};
	199
	200	static struct resource sa1111_resources[] = {
	201	[0] = {
	202	.start = 0x10000000,
	203	.end = 0x10001fff,
	204	.flags = IORESOURCE_MEM,
	205	},
	206	[1] = {
	207	.start = LUBBOCK_SA1111_IRQ,
	208	.end = LUBBOCK_SA1111_IRQ,
	209	.flags = IORESOURCE_IRQ,
	210	},
	211	};
	212
	213	static struct platform_device sa1111_device = {
	214	.name = "sa1111",
	215	.id = -1,
	216	.num_resources = ARRAY_SIZE(sa1111_resources),
	217	.resource = sa1111_resources,
	218	};
	219
9df5db80 DB	220	/* ADS7846 is connected through SSP ... and if your board has J5 populated,
	221	* you can select it to replace the ucb1400 by switching the touchscreen cable
	222	* (to J5) and poking board registers (as done below). Else it's only useful
	223	* for the temperature sensors.
	224	*/
9df5db80	225	static struct pxa2xx_spi_master pxa_ssp_master_info = {
9df5db80 DB	226	.num_chipselect = 0,
	227	};
	228
	229	static struct platform_device pxa_ssp = {
	230	.name = "pxa2xx-spi",
	231	.id = 1,
9df5db80 DB	232	.dev = {
	233	.platform_data = &pxa_ssp_master_info,
	234	},
	235	};
	236
	237	static int lubbock_ads7846_pendown_state(void)
	238	{
	239	/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
	240	return 0;
	241	}
	242
	243	static struct ads7846_platform_data ads_info = {
	244	.model = 7846,
	245	.vref_delay_usecs = 100, /* internal, no cap */
	246	.get_pendown_state = lubbock_ads7846_pendown_state,
	247	// .x_plate_ohms = 500, /* GUESS! */
	248	// .y_plate_ohms = 500, /* GUESS! */
	249	};
	250
	251	static void ads7846_cs(u32 command)
	252	{
	253	static const unsigned TS_nCS = 1 << 11;
	254	lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
	255	}
	256
	257	static struct pxa2xx_spi_chip ads_hw = {
	258	.tx_threshold = 1,
	259	.rx_threshold = 2,
	260	.cs_control = ads7846_cs,
	261	};
	262
	263	static struct spi_board_info spi_board_info[] __initdata = { {
	264	.modalias = "ads7846",
	265	.platform_data = &ads_info,
	266	.controller_data = &ads_hw,
	267	.irq = LUBBOCK_BB_IRQ,
	268	.max_speed_hz = 120000 /* max sample rate at 3V */
	269	* 26 /* command + data + overhead */,
	270	.bus_num = 1,
	271	.chip_select = 0,
	272	},
	273	};
	274
e21e2d46 RK	275	static struct resource smc91x_resources[] = {
	276	[0] = {
	277	.name = "smc91x-regs",
	278	.start = 0x0c000c00,
	279	.end = 0x0c0fffff,
	280	.flags = IORESOURCE_MEM,
	281	},
	282	[1] = {
	283	.start = LUBBOCK_ETH_IRQ,
	284	.end = LUBBOCK_ETH_IRQ,
	285	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
	286	},
	287	[2] = {
	288	.name = "smc91x-attrib",
	289	.start = 0x0e000000,
	290	.end = 0x0e0fffff,
	291	.flags = IORESOURCE_MEM,
	292	},
	293	};
	294
1da177e4 LT	295	static struct platform_device smc91x_device = {
	296	.name = "smc91x",
	297	.id = -1,
	298	.num_resources = ARRAY_SIZE(smc91x_resources),
	299	.resource = smc91x_resources,
	300	};
	301
74ec71e1 TP	302	static struct resource flash_resources[] = {
	303	[0] = {
	304	.start = 0x00000000,
	305	.end = SZ_64M - 1,
	306	.flags = IORESOURCE_MEM,
	307	},
	308	[1] = {
	309	.start = 0x04000000,
	310	.end = 0x04000000 + SZ_64M - 1,
	311	.flags = IORESOURCE_MEM,
	312	},
	313	};
	314
	315	static struct mtd_partition lubbock_partitions[] = {
	316	{
	317	.name = "Bootloader",
	318	.size = 0x00040000,
	319	.offset = 0,
	320	.mask_flags = MTD_WRITEABLE /* force read-only */
	321	},{
	322	.name = "Kernel",
	323	.size = 0x00100000,
	324	.offset = 0x00040000,
	325	},{
	326	.name = "Filesystem",
	327	.size = MTDPART_SIZ_FULL,
	328	.offset = 0x00140000
	329	}
	330	};
	331
	332	static struct flash_platform_data lubbock_flash_data[2] = {
	333	{
	334	.map_name = "cfi_probe",
	335	.parts = lubbock_partitions,
	336	.nr_parts = ARRAY_SIZE(lubbock_partitions),
	337	}, {
	338	.map_name = "cfi_probe",
	339	.parts = NULL,
	340	.nr_parts = 0,
	341	}
	342	};
	343
	344	static struct platform_device lubbock_flash_device[2] = {
	345	{
	346	.name = "pxa2xx-flash",
	347	.id = 0,
	348	.dev = {
	349	.platform_data = &lubbock_flash_data[0],
	350	},
	351	.resource = &flash_resources[0],
	352	.num_resources = 1,
	353	},
	354	{
	355	.name = "pxa2xx-flash",
	356	.id = 1,
	357	.dev = {
	358	.platform_data = &lubbock_flash_data[1],
	359	},
	360	.resource = &flash_resources[1],
	361	.num_resources = 1,
	362	},
	363	};
	364
1da177e4 LT	365	static struct platform_device *devices[] __initdata = {
	366	&sa1111_device,
	367	&smc91x_device,
74ec71e1 TP	368	&lubbock_flash_device[0],
74ec71e1 TP	369	&lubbock_flash_device[1],
9df5db80	370	&pxa_ssp,
1da177e4 LT	371	};
1da177e4 LT	372
d14b272b	373	static struct pxafb_mode_info sharp_lm8v31_mode = {
1da177e4 LT	374	.pixclock = 270000,
	375	.xres = 640,
	376	.yres = 480,
	377	.bpp = 16,
	378	.hsync_len = 1,
	379	.left_margin = 3,
	380	.right_margin = 3,
	381	.vsync_len = 1,
	382	.upper_margin = 0,
	383	.lower_margin = 0,
	384	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	385	.cmap_greyscale = 0,
d14b272b RP	386	};
	387
	388	static struct pxafb_mach_info sharp_lm8v31 = {
	389	.modes = &sharp_lm8v31_mode,
	390	.num_modes = 1,
1da177e4 LT	391	.cmap_inverse = 0,
1da177e4 LT	392	.cmap_static = 0,
0454bd09	393	.lcd_conn = LCD_COLOR_DSTN_16BPP \| LCD_PCLK_EDGE_FALL \|
ffebabe0	394	LCD_AC_BIAS_FREQ(255),
1da177e4 LT	395	};
1da177e4 LT	396
85eb226c DB	397	#define MMC_POLL_RATE msecs_to_jiffies(1000)
	398
	399	static void lubbock_mmc_poll(unsigned long);
40220c1a	400	static irq_handler_t mmc_detect_int;
85eb226c DB	401
	402	static struct timer_list mmc_timer = {
	403	.function = lubbock_mmc_poll,
	404	};
	405
	406	static void lubbock_mmc_poll(unsigned long data)
	407	{
	408	unsigned long flags;
	409
	410	/* clear any previous irq state, then ... */
	411	local_irq_save(flags);
	412	LUB_IRQ_SET_CLR &= ~(1 << 0);
	413	local_irq_restore(flags);
	414
	415	/* poll until mmc/sd card is removed */
	416	if (LUB_IRQ_SET_CLR & (1 << 0))
	417	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	418	else {
2326eb98	419	(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
85eb226c DB	420	enable_irq(LUBBOCK_SD_IRQ);
	421	}
	422	}
	423
0cd61b68	424	static irqreturn_t lubbock_detect_int(int irq, void *data)
85eb226c DB	425	{
	426	/* IRQ is level triggered; disable, and poll for removal */
	427	disable_irq(irq);
	428	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	429
0cd61b68	430	return mmc_detect_int(irq, data);
85eb226c DB	431	}
	432
	433	static int lubbock_mci_init(struct device *dev,
40220c1a	434	irq_handler_t detect_int,
85eb226c	435	void *data)
1da177e4	436	{
85eb226c DB	437	/* detect card insert/eject */
	438	mmc_detect_int = detect_int;
	439	init_timer(&mmc_timer);
	440	mmc_timer.data = (unsigned long) data;
	441	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea	442	IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c DB	443	}
	444
	445	static int lubbock_mci_get_ro(struct device *dev)
	446	{
	447	return (LUB_MISC_RD & (1 << 2)) != 0;
	448	}
	449
	450	static void lubbock_mci_exit(struct device dev, void data)
	451	{
	452	free_irq(LUBBOCK_SD_IRQ, data);
	453	del_timer_sync(&mmc_timer);
1da177e4 LT	454	}
	455
	456	static struct pxamci_platform_data lubbock_mci_platform_data = {
	457	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
85eb226c	458	.detect_delay = 1,
1da177e4	459	.init = lubbock_mci_init,
85eb226c DB	460	.get_ro = lubbock_mci_get_ro,
85eb226c DB	461	.exit = lubbock_mci_exit,
1da177e4 LT	462	};
1da177e4 LT	463
6f475c01 NP	464	static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
	465	{
	466	unsigned long flags;
	467
	468	local_irq_save(flags);
	469	if (mode & IR_SIRMODE) {
	470	LUB_MISC_WR &= ~(1 << 4);
	471	} else if (mode & IR_FIRMODE) {
	472	LUB_MISC_WR \|= 1 << 4;
	473	}
	474	local_irq_restore(flags);
	475	}
	476
	477	static struct pxaficp_platform_data lubbock_ficp_platform_data = {
	478	.transceiver_cap = IR_SIRMODE \| IR_FIRMODE,
	479	.transceiver_mode = lubbock_irda_transceiver_mode,
	480	};
	481
1da177e4 LT	482	static void __init lubbock_init(void)
1da177e4 LT	483	{
74ec71e1 TP	484	int flashboot = (LUB_CONF_SWITCHES & 1);
74ec71e1 TP	485
9b02b2df	486	pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
9b02b2df	487
1da177e4 LT	488	pxa_set_udc_info(&udc_info);
	489	set_pxa_fb_info(&sharp_lm8v31);
	490	pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01	491	pxa_set_ficp_info(&lubbock_ficp_platform_data);
9f19d638	492	pxa_set_ac97_info(NULL);
74ec71e1 TP	493
	494	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
	495	(BOOT_DEF & 1) ? 2 : 4;
	496	/* Compensate for the nROMBT switch which swaps the flash banks */
	497	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
	498	flashboot?"Flash":"ROM", flashboot);
	499
	500	lubbock_flash_data[flashboot^1].name = "application-flash";
	501	lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4	502	(void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80 DB	503
9df5db80 DB	504	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4 LT	505	}
	506
	507	static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb DS	508	{ /* CPLD */
	509	.virtual = LUBBOCK_FPGA_VIRT,
	510	.pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
	511	.length = 0x00100000,
	512	.type = MT_DEVICE
	513	}
1da177e4 LT	514	};
	515
	516	static void __init lubbock_map_io(void)
	517	{
	518	pxa_map_io();
	519	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
	520
1da177e4 LT	521	PCFR \|= PCFR_OPDE;
	522	}
	523
	524	MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6	525	/* Maintainer: MontaVista Software Inc. */
e9dea0c6	526	.phys_io = 0x40000000,
68070bde	527	.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 RK	528	.map_io = lubbock_map_io,
e9dea0c6 RK	529	.init_irq = lubbock_init_irq,
1da177e4	530	.timer = &pxa_timer,
e9dea0c6	531	.init_machine = lubbock_init,
1da177e4	532	MACHINE_END