[deliverable/linux.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/gpio.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/syscore_ops.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/smc91x.h>

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

#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <mach/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 <mach/pxa25x.h>
#include <mach/audio.h>
#include <mach/lubbock.h>
#include <mach/udc.h>
#include <mach/irda.h>
#include <mach/pxafb.h>
#include <mach/mmc.h>
#include <mach/pm.h>
#include <mach/smemc.h>

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

static unsigned long lubbock_pin_config[] __initdata = {
	GPIO15_nCS_1,	/* CS1 - Flash */
	GPIO78_nCS_2,	/* CS2 - Baseboard FGPA */
	GPIO79_nCS_3,	/* CS3 - SMC ethernet */
	GPIO80_nCS_4,	/* CS4 - SA1111 */

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

	/* AC97 */
	GPIO28_AC97_BITCLK,
	GPIO29_AC97_SDATA_IN_0,
	GPIO30_AC97_SDATA_OUT,
	GPIO31_AC97_SYNC,

	/* LCD - 16bpp DSTN */
	GPIOxx_LCD_DSTN_16BPP,

	/* 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_HEXLED		__LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
#define LUB_MISC_WR		__LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)

void lubbock_set_hexled(uint32_t value)
{
	LUB_HEXLED = value;
}

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(struct irq_data *d)
{
	int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
}

static void lubbock_unmask_irq(struct irq_data *d)
{
	int lubbock_irq = (d->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",
	.irq_ack	= lubbock_mask_irq,
	.irq_mask	= lubbock_mask_irq,
	.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 {
		/* clear our parent irq */
		desc->irq_data.chip->irq_ack(&desc->irq_data);
		if (likely(pending)) {
			irq = LUBBOCK_IRQ(0) + __ffs(pending);
			generic_handle_irq(irq);
		}
		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++) {
		irq_set_chip_and_handler(irq, &lubbock_irq_chip,
					 handle_level_irq);
		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
	}

	irq_set_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
}

#ifdef CONFIG_PM

static void lubbock_irq_resume(void)
{
	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
}

static struct syscore_ops lubbock_irq_syscore_ops = {
	.resume = lubbock_irq_resume,
};

static int __init lubbock_irq_device_init(void)
{
	if (machine_is_lubbock()) {
		register_syscore_ops(&lubbock_irq_syscore_ops);
		return 0;
	}
	return -ENODEV;
}

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 sa1111_platform_data sa1111_info = {
	.irq_base	= LUBBOCK_SA1111_IRQ_BASE,
};

static struct platform_device sa1111_device = {
	.name		= "sa1111",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(sa1111_resources),
	.resource	= sa1111_resources,
	.dev		= {
		.platform_data	= &sa1111_info,
	},
};

/* 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	= 1,
};

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 smc91x_platdata lubbock_smc91x_info = {
	.flags	= SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_IO_SHIFT_2,
};

static struct platform_device smc91x_device = {
	.name		= "smc91x",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(smc91x_resources),
	.resource	= smc91x_resources,
	.dev		= {
		.platform_data = &lubbock_smc91x_info,
	},
};

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],
};

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_ms	= 10,
	.init 			= lubbock_mci_init,
	.get_ro			= lubbock_mci_get_ro,
	.exit 			= lubbock_mci_exit,
	.gpio_card_detect	= -1,
	.gpio_card_ro		= -1,
	.gpio_power		= -1,
};

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;
	}
	pxa2xx_transceiver_mode(dev, mode);
	local_irq_restore(flags);
}

static struct pxaficp_platform_data lubbock_ficp_platform_data = {
	.gpio_pwdown		= -1,
	.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_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);
	pxa_set_stuart_info(NULL);

	clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
	pxa_set_udc_info(&udc_info);
	pxa_set_fb_info(NULL, &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 =
		(__raw_readl(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));

	pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
	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)
{
	pxa25x_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. */
	.map_io		= lubbock_map_io,
	.nr_irqs	= LUBBOCK_NR_IRQS,
	.init_irq	= lubbock_init_irq,
	.handle_irq	= pxa25x_handle_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	*/
2f8163ba	14	#include <linux/gpio.h>
1da177e4 LT	15	#include <linux/module.h>
	16	#include <linux/kernel.h>
	17	#include <linux/init.h>
d052d1be	18	#include <linux/platform_device.h>
2eaa03b5	19	#include <linux/syscore_ops.h>
1da177e4 LT	20	#include <linux/major.h>
	21	#include <linux/fb.h>
	22	#include <linux/interrupt.h>
74ec71e1 TP	23	#include <linux/mtd/mtd.h>
74ec71e1 TP	24	#include <linux/mtd/partitions.h>
3aed74cd	25	#include <linux/smc91x.h>
1da177e4	26
9df5db80 DB	27	#include <linux/spi/spi.h>
9df5db80 DB	28	#include <linux/spi/ads7846.h>
8348c259	29	#include <linux/spi/pxa2xx_spi.h>
9df5db80	30
1da177e4 LT	31	#include <asm/setup.h>
	32	#include <asm/memory.h>
	33	#include <asm/mach-types.h>
a09e64fb	34	#include <mach/hardware.h>
1da177e4	35	#include <asm/irq.h>
74ec71e1	36	#include <asm/sizes.h>
1da177e4 LT	37
	38	#include <asm/mach/arch.h>
	39	#include <asm/mach/map.h>
	40	#include <asm/mach/irq.h>
74ec71e1	41	#include <asm/mach/flash.h>
1da177e4 LT	42
	43	#include <asm/hardware/sa1111.h>
	44
51c62982	45	#include <mach/pxa25x.h>
a09e64fb RK	46	#include <mach/audio.h>
	47	#include <mach/lubbock.h>
	48	#include <mach/udc.h>
	49	#include <mach/irda.h>
	50	#include <mach/pxafb.h>
	51	#include <mach/mmc.h>
54386145	52	#include <mach/pm.h>
ad68bb9f	53	#include <mach/smemc.h>
1da177e4 LT	54
1da177e4 LT	55	#include "generic.h"
c1ed406c	56	#include "clock.h"
46c41e62	57	#include "devices.h"
1da177e4	58
9b02b2df	59	static unsigned long lubbock_pin_config[] __initdata = {
9b02b2df	60	GPIO15_nCS_1, /* CS1 - Flash */
4a5c5eab	61	GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
9b02b2df	62	GPIO79_nCS_3, /* CS3 - SMC ethernet */
4a5c5eab	63	GPIO80_nCS_4, /* CS4 - SA1111 */
9b02b2df	64
	65	/* SSP data pins */
	66	GPIO23_SSP1_SCLK,
	67	GPIO25_SSP1_TXD,
	68	GPIO26_SSP1_RXD,
	69
c11b6a42 EM	70	/* AC97 */
	71	GPIO28_AC97_BITCLK,
	72	GPIO29_AC97_SDATA_IN_0,
	73	GPIO30_AC97_SDATA_OUT,
	74	GPIO31_AC97_SYNC,
	75
4a5c5eab	76	/* LCD - 16bpp DSTN */
07bae6c3	77	GPIOxx_LCD_DSTN_16BPP,
4a5c5eab	78
9b02b2df	79	/* BTUART */
	80	GPIO42_BTUART_RXD,
	81	GPIO43_BTUART_TXD,
	82	GPIO44_BTUART_CTS,
	83	GPIO45_BTUART_RTS,
	84
	85	/* PC Card */
	86	GPIO48_nPOE,
	87	GPIO49_nPWE,
	88	GPIO50_nPIOR,
	89	GPIO51_nPIOW,
	90	GPIO52_nPCE_1,
	91	GPIO53_nPCE_2,
	92	GPIO54_nPSKTSEL,
	93	GPIO55_nPREG,
	94	GPIO56_nPWAIT,
	95	GPIO57_nIOIS16,
	96
	97	/* MMC */
	98	GPIO6_MMC_CLK,
	99	GPIO8_MMC_CS0,
	100
	101	/* wakeup */
	102	GPIO1_GPIO \| WAKEUP_ON_EDGE_RISE,
	103	};
1da177e4	104
54386145	105	#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
1da177e4 LT	106	#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
1da177e4 LT	107
54386145 EM	108	void lubbock_set_hexled(uint32_t value)
	109	{
	110	LUB_HEXLED = value;
	111	}
	112
1da177e4 LT	113	void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
	114	{
	115	unsigned long flags;
	116
	117	local_irq_save(flags);
	118	LUB_MISC_WR = (LUB_MISC_WR & ~mask) \| (set & mask);
	119	local_irq_restore(flags);
	120	}
	121	EXPORT_SYMBOL(lubbock_set_misc_wr);
	122
	123	static unsigned long lubbock_irq_enabled;
	124
a3f4c927	125	static void lubbock_mask_irq(struct irq_data *d)
1da177e4	126	{
a3f4c927	127	int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
1da177e4 LT	128	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
	129	}
	130
a3f4c927	131	static void lubbock_unmask_irq(struct irq_data *d)
1da177e4	132	{
a3f4c927	133	int lubbock_irq = (d->irq - LUBBOCK_IRQ(0));
1da177e4 LT	134	/* the irq can be acknowledged only if deasserted, so it's done here */
	135	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
	136	LUB_IRQ_MASK_EN = (lubbock_irq_enabled \|= (1 << lubbock_irq));
	137	}
	138
38c677cb DB	139	static struct irq_chip lubbock_irq_chip = {
38c677cb DB	140	.name = "FPGA",
a3f4c927 LB	141	.irq_ack = lubbock_mask_irq,
	142	.irq_mask = lubbock_mask_irq,
	143	.irq_unmask = lubbock_unmask_irq,
1da177e4 LT	144	};
1da177e4 LT	145
10dd5ce2	146	static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
1da177e4 LT	147	{
	148	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	149	do {
a3f4c927 LB	150	/* clear our parent irq */
a3f4c927 LB	151	desc->irq_data.chip->irq_ack(&desc->irq_data);
1da177e4 LT	152	if (likely(pending)) {
1da177e4 LT	153	irq = LUBBOCK_IRQ(0) + __ffs(pending);
d8aa0251	154	generic_handle_irq(irq);
1da177e4 LT	155	}
	156	pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	157	} while (pending);
	158	}
	159
	160	static void __init lubbock_init_irq(void)
	161	{
	162	int irq;
	163
cd49104d	164	pxa25x_init_irq();
1da177e4 LT	165
	166	/* setup extra lubbock irqs */
	167	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
f38c02f3 TG	168	irq_set_chip_and_handler(irq, &lubbock_irq_chip,
f38c02f3 TG	169	handle_level_irq);
1da177e4 LT	170	set_irq_flags(irq, IRQF_VALID \| IRQF_PROBE);
	171	}
	172
6845664a TG	173	irq_set_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
6845664a TG	174	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
1da177e4 LT	175	}
1da177e4 LT	176
22f11c4e NP	177	#ifdef CONFIG_PM
22f11c4e NP	178
2eaa03b5	179	static void lubbock_irq_resume(void)
22f11c4e NP	180	{
22f11c4e NP	181	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
22f11c4e NP	182	}
22f11c4e NP	183
2eaa03b5	184	static struct syscore_ops lubbock_irq_syscore_ops = {
22f11c4e NP	185	.resume = lubbock_irq_resume,
	186	};
	187
22f11c4e NP	188	static int __init lubbock_irq_device_init(void)
22f11c4e NP	189	{
16f159b1	190	if (machine_is_lubbock()) {
2eaa03b5 RW	191	register_syscore_ops(&lubbock_irq_syscore_ops);
2eaa03b5 RW	192	return 0;
16f159b1	193	}
2eaa03b5	194	return -ENODEV;
22f11c4e NP	195	}
	196
	197	device_initcall(lubbock_irq_device_init);
	198
	199	#endif
	200
1da177e4 LT	201	static int lubbock_udc_is_connected(void)
	202	{
	203	return (LUB_MISC_RD & (1 << 9)) == 0;
	204	}
	205
	206	static struct pxa2xx_udc_mach_info udc_info __initdata = {
	207	.udc_is_connected = lubbock_udc_is_connected,
	208	// no D+ pullup; lubbock can't connect/disconnect in software
	209	};
	210
	211	static struct resource sa1111_resources[] = {
	212	[0] = {
	213	.start = 0x10000000,
	214	.end = 0x10001fff,
	215	.flags = IORESOURCE_MEM,
	216	},
	217	[1] = {
	218	.start = LUBBOCK_SA1111_IRQ,
	219	.end = LUBBOCK_SA1111_IRQ,
	220	.flags = IORESOURCE_IRQ,
	221	},
	222	};
	223
19851c58	224	static struct sa1111_platform_data sa1111_info = {
6ac6b817	225	.irq_base = LUBBOCK_SA1111_IRQ_BASE,
19851c58 EM	226	};
19851c58 EM	227
1da177e4 LT	228	static struct platform_device sa1111_device = {
	229	.name = "sa1111",
	230	.id = -1,
	231	.num_resources = ARRAY_SIZE(sa1111_resources),
	232	.resource = sa1111_resources,
19851c58 EM	233	.dev = {
	234	.platform_data = &sa1111_info,
	235	},
1da177e4 LT	236	};
1da177e4 LT	237
9df5db80 DB	238	/* ADS7846 is connected through SSP ... and if your board has J5 populated,
	239	* you can select it to replace the ucb1400 by switching the touchscreen cable
	240	* (to J5) and poking board registers (as done below). Else it's only useful
	241	* for the temperature sensors.
	242	*/
9df5db80	243	static struct pxa2xx_spi_master pxa_ssp_master_info = {
1f4de5a0	244	.num_chipselect = 1,
9df5db80 DB	245	};
9df5db80 DB	246
9df5db80 DB	247	static int lubbock_ads7846_pendown_state(void)
	248	{
	249	/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
	250	return 0;
	251	}
	252
	253	static struct ads7846_platform_data ads_info = {
	254	.model = 7846,
	255	.vref_delay_usecs = 100, /* internal, no cap */
	256	.get_pendown_state = lubbock_ads7846_pendown_state,
	257	// .x_plate_ohms = 500, /* GUESS! */
	258	// .y_plate_ohms = 500, /* GUESS! */
	259	};
	260
	261	static void ads7846_cs(u32 command)
	262	{
	263	static const unsigned TS_nCS = 1 << 11;
	264	lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
	265	}
	266
	267	static struct pxa2xx_spi_chip ads_hw = {
	268	.tx_threshold = 1,
	269	.rx_threshold = 2,
	270	.cs_control = ads7846_cs,
	271	};
	272
	273	static struct spi_board_info spi_board_info[] __initdata = { {
	274	.modalias = "ads7846",
	275	.platform_data = &ads_info,
	276	.controller_data = &ads_hw,
	277	.irq = LUBBOCK_BB_IRQ,
	278	.max_speed_hz = 120000 /* max sample rate at 3V */
	279	* 26 /* command + data + overhead */,
	280	.bus_num = 1,
	281	.chip_select = 0,
	282	},
	283	};
	284
e21e2d46 RK	285	static struct resource smc91x_resources[] = {
	286	[0] = {
	287	.name = "smc91x-regs",
	288	.start = 0x0c000c00,
	289	.end = 0x0c0fffff,
	290	.flags = IORESOURCE_MEM,
	291	},
	292	[1] = {
	293	.start = LUBBOCK_ETH_IRQ,
	294	.end = LUBBOCK_ETH_IRQ,
	295	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
	296	},
	297	[2] = {
	298	.name = "smc91x-attrib",
	299	.start = 0x0e000000,
	300	.end = 0x0e0fffff,
	301	.flags = IORESOURCE_MEM,
	302	},
	303	};
	304
3aed74cd EM	305	static struct smc91x_platdata lubbock_smc91x_info = {
	306	.flags = SMC91X_USE_16BIT \| SMC91X_NOWAIT \| SMC91X_IO_SHIFT_2,
	307	};
	308
1da177e4 LT	309	static struct platform_device smc91x_device = {
	310	.name = "smc91x",
	311	.id = -1,
	312	.num_resources = ARRAY_SIZE(smc91x_resources),
	313	.resource = smc91x_resources,
3aed74cd EM	314	.dev = {
	315	.platform_data = &lubbock_smc91x_info,
	316	},
1da177e4 LT	317	};
1da177e4 LT	318
74ec71e1 TP	319	static struct resource flash_resources[] = {
	320	[0] = {
	321	.start = 0x00000000,
	322	.end = SZ_64M - 1,
	323	.flags = IORESOURCE_MEM,
	324	},
	325	[1] = {
	326	.start = 0x04000000,
	327	.end = 0x04000000 + SZ_64M - 1,
	328	.flags = IORESOURCE_MEM,
	329	},
	330	};
	331
	332	static struct mtd_partition lubbock_partitions[] = {
	333	{
	334	.name = "Bootloader",
	335	.size = 0x00040000,
	336	.offset = 0,
	337	.mask_flags = MTD_WRITEABLE /* force read-only */
	338	},{
	339	.name = "Kernel",
	340	.size = 0x00100000,
	341	.offset = 0x00040000,
	342	},{
	343	.name = "Filesystem",
	344	.size = MTDPART_SIZ_FULL,
	345	.offset = 0x00140000
	346	}
	347	};
	348
	349	static struct flash_platform_data lubbock_flash_data[2] = {
	350	{
	351	.map_name = "cfi_probe",
	352	.parts = lubbock_partitions,
	353	.nr_parts = ARRAY_SIZE(lubbock_partitions),
	354	}, {
	355	.map_name = "cfi_probe",
	356	.parts = NULL,
	357	.nr_parts = 0,
	358	}
	359	};
	360
	361	static struct platform_device lubbock_flash_device[2] = {
	362	{
	363	.name = "pxa2xx-flash",
	364	.id = 0,
	365	.dev = {
	366	.platform_data = &lubbock_flash_data[0],
	367	},
	368	.resource = &flash_resources[0],
	369	.num_resources = 1,
	370	},
	371	{
	372	.name = "pxa2xx-flash",
	373	.id = 1,
	374	.dev = {
	375	.platform_data = &lubbock_flash_data[1],
	376	},
	377	.resource = &flash_resources[1],
	378	.num_resources = 1,
	379	},
	380	};
	381
1da177e4 LT	382	static struct platform_device *devices[] __initdata = {
	383	&sa1111_device,
	384	&smc91x_device,
74ec71e1 TP	385	&lubbock_flash_device[0],
74ec71e1 TP	386	&lubbock_flash_device[1],
1da177e4 LT	387	};
1da177e4 LT	388
d14b272b	389	static struct pxafb_mode_info sharp_lm8v31_mode = {
1da177e4 LT	390	.pixclock = 270000,
	391	.xres = 640,
	392	.yres = 480,
	393	.bpp = 16,
	394	.hsync_len = 1,
	395	.left_margin = 3,
	396	.right_margin = 3,
	397	.vsync_len = 1,
	398	.upper_margin = 0,
	399	.lower_margin = 0,
	400	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	401	.cmap_greyscale = 0,
d14b272b RP	402	};
	403
	404	static struct pxafb_mach_info sharp_lm8v31 = {
	405	.modes = &sharp_lm8v31_mode,
	406	.num_modes = 1,
1da177e4 LT	407	.cmap_inverse = 0,
1da177e4 LT	408	.cmap_static = 0,
0454bd09	409	.lcd_conn = LCD_COLOR_DSTN_16BPP \| LCD_PCLK_EDGE_FALL \|
ffebabe0	410	LCD_AC_BIAS_FREQ(255),
1da177e4 LT	411	};
1da177e4 LT	412
85eb226c DB	413	#define MMC_POLL_RATE msecs_to_jiffies(1000)
	414
	415	static void lubbock_mmc_poll(unsigned long);
40220c1a	416	static irq_handler_t mmc_detect_int;
85eb226c DB	417
	418	static struct timer_list mmc_timer = {
	419	.function = lubbock_mmc_poll,
	420	};
	421
	422	static void lubbock_mmc_poll(unsigned long data)
	423	{
	424	unsigned long flags;
	425
	426	/* clear any previous irq state, then ... */
	427	local_irq_save(flags);
	428	LUB_IRQ_SET_CLR &= ~(1 << 0);
	429	local_irq_restore(flags);
	430
	431	/* poll until mmc/sd card is removed */
	432	if (LUB_IRQ_SET_CLR & (1 << 0))
	433	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	434	else {
2326eb98	435	(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
85eb226c DB	436	enable_irq(LUBBOCK_SD_IRQ);
	437	}
	438	}
	439
0cd61b68	440	static irqreturn_t lubbock_detect_int(int irq, void *data)
85eb226c DB	441	{
	442	/* IRQ is level triggered; disable, and poll for removal */
	443	disable_irq(irq);
	444	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	445
0cd61b68	446	return mmc_detect_int(irq, data);
85eb226c DB	447	}
	448
	449	static int lubbock_mci_init(struct device *dev,
40220c1a	450	irq_handler_t detect_int,
85eb226c	451	void *data)
1da177e4	452	{
85eb226c DB	453	/* detect card insert/eject */
	454	mmc_detect_int = detect_int;
	455	init_timer(&mmc_timer);
	456	mmc_timer.data = (unsigned long) data;
	457	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea	458	IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c DB	459	}
	460
	461	static int lubbock_mci_get_ro(struct device *dev)
	462	{
	463	return (LUB_MISC_RD & (1 << 2)) != 0;
	464	}
	465
	466	static void lubbock_mci_exit(struct device dev, void data)
	467	{
	468	free_irq(LUBBOCK_SD_IRQ, data);
	469	del_timer_sync(&mmc_timer);
1da177e4 LT	470	}
	471
	472	static struct pxamci_platform_data lubbock_mci_platform_data = {
7a648256	473	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
f97cab28	474	.detect_delay_ms = 10,
7a648256 RJ	475	.init = lubbock_mci_init,
	476	.get_ro = lubbock_mci_get_ro,
	477	.exit = lubbock_mci_exit,
	478	.gpio_card_detect = -1,
	479	.gpio_card_ro = -1,
	480	.gpio_power = -1,
1da177e4 LT	481	};
1da177e4 LT	482
6f475c01 NP	483	static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
	484	{
	485	unsigned long flags;
	486
	487	local_irq_save(flags);
	488	if (mode & IR_SIRMODE) {
	489	LUB_MISC_WR &= ~(1 << 4);
	490	} else if (mode & IR_FIRMODE) {
	491	LUB_MISC_WR \|= 1 << 4;
	492	}
0fc3ff31	493	pxa2xx_transceiver_mode(dev, mode);
6f475c01 NP	494	local_irq_restore(flags);
	495	}
	496
	497	static struct pxaficp_platform_data lubbock_ficp_platform_data = {
c4bd0172 MV	498	.gpio_pwdown = -1,
	499	.transceiver_cap = IR_SIRMODE \| IR_FIRMODE,
	500	.transceiver_mode = lubbock_irda_transceiver_mode,
6f475c01 NP	501	};
6f475c01 NP	502
1da177e4 LT	503	static void __init lubbock_init(void)
1da177e4 LT	504	{
74ec71e1 TP	505	int flashboot = (LUB_CONF_SWITCHES & 1);
74ec71e1 TP	506
9b02b2df	507	pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
9b02b2df	508
cc155c6f RK	509	pxa_set_ffuart_info(NULL);
	510	pxa_set_btuart_info(NULL);
	511	pxa_set_stuart_info(NULL);
	512
c1ed406c	513	clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
1da177e4	514	pxa_set_udc_info(&udc_info);
4321e1a1	515	pxa_set_fb_info(NULL, &sharp_lm8v31);
1da177e4	516	pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01	517	pxa_set_ficp_info(&lubbock_ficp_platform_data);
9f19d638	518	pxa_set_ac97_info(NULL);
74ec71e1 TP	519
74ec71e1 TP	520	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
ad68bb9f	521	(__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
74ec71e1 TP	522	/* Compensate for the nROMBT switch which swaps the flash banks */
	523	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
	524	flashboot?"Flash":"ROM", flashboot);
	525
	526	lubbock_flash_data[flashboot^1].name = "application-flash";
	527	lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4	528	(void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80	529
e172274c	530	pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
9df5db80	531	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4 LT	532	}
	533
	534	static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb DS	535	{ /* CPLD */
	536	.virtual = LUBBOCK_FPGA_VIRT,
	537	.pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
	538	.length = 0x00100000,
	539	.type = MT_DEVICE
	540	}
1da177e4 LT	541	};
	542
	543	static void __init lubbock_map_io(void)
	544	{
851982c1	545	pxa25x_map_io();
1da177e4 LT	546	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
1da177e4 LT	547
1da177e4 LT	548	PCFR \|= PCFR_OPDE;
	549	}
	550
	551	MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6	552	/* Maintainer: MontaVista Software Inc. */
e9dea0c6	553	.map_io = lubbock_map_io,
6ac6b817	554	.nr_irqs = LUBBOCK_NR_IRQS,
e9dea0c6	555	.init_irq = lubbock_init_irq,
8a97ae2f	556	.handle_irq = pxa25x_handle_irq,
1da177e4	557	.timer = &pxa_timer,
e9dea0c6	558	.init_machine = lubbock_init,
1da177e4	559	MACHINE_END