[linux-block.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/smc91x.h>

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <mach/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/gpio.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 "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,

	/* LCD - 16bpp DSTN */
	GPIO58_LCD_LDD_0,
	GPIO59_LCD_LDD_1,
	GPIO60_LCD_LDD_2,
	GPIO61_LCD_LDD_3,
	GPIO62_LCD_LDD_4,
	GPIO63_LCD_LDD_5,
	GPIO64_LCD_LDD_6,
	GPIO65_LCD_LDD_7,
	GPIO66_LCD_LDD_8,
	GPIO67_LCD_LDD_9,
	GPIO68_LCD_LDD_10,
	GPIO69_LCD_LDD_11,
	GPIO70_LCD_LDD_12,
	GPIO71_LCD_LDD_13,
	GPIO72_LCD_LDD_14,
	GPIO73_LCD_LDD_15,
	GPIO74_LCD_FCLK,
	GPIO75_LCD_LCLK,
	GPIO76_LCD_PCLK,

	/* 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(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);
			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++) {
		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), IRQ_TYPE_EDGE_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	= 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		= 1,
	.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));

	clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
	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));

	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)
{
	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>
3aed74cd	24	#include <linux/smc91x.h>
1da177e4	25
9df5db80 DB	26	#include <linux/spi/spi.h>
9df5db80 DB	27	#include <linux/spi/ads7846.h>
a09e64fb	28	#include <mach/pxa2xx_spi.h>
9df5db80	29
1da177e4 LT	30	#include <asm/setup.h>
	31	#include <asm/memory.h>
	32	#include <asm/mach-types.h>
a09e64fb	33	#include <mach/hardware.h>
1da177e4	34	#include <asm/irq.h>
74ec71e1	35	#include <asm/sizes.h>
1da177e4 LT	36
	37	#include <asm/mach/arch.h>
	38	#include <asm/mach/map.h>
	39	#include <asm/mach/irq.h>
74ec71e1	40	#include <asm/mach/flash.h>
1da177e4 LT	41
	42	#include <asm/hardware/sa1111.h>
	43
51c62982	44	#include <mach/pxa25x.h>
da065a0b	45	#include <mach/gpio.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>
1da177e4 LT	53
1da177e4 LT	54	#include "generic.h"
c1ed406c	55	#include "clock.h"
46c41e62	56	#include "devices.h"
1da177e4	57
9b02b2df	58	static unsigned long lubbock_pin_config[] __initdata = {
9b02b2df	59	GPIO15_nCS_1, /* CS1 - Flash */
4a5c5eab	60	GPIO78_nCS_2, /* CS2 - Baseboard FGPA */
9b02b2df	61	GPIO79_nCS_3, /* CS3 - SMC ethernet */
4a5c5eab	62	GPIO80_nCS_4, /* CS4 - SA1111 */
9b02b2df	63
	64	/* SSP data pins */
	65	GPIO23_SSP1_SCLK,
	66	GPIO25_SSP1_TXD,
	67	GPIO26_SSP1_RXD,
	68
4a5c5eab EM	69	/* LCD - 16bpp DSTN */
	70	GPIO58_LCD_LDD_0,
	71	GPIO59_LCD_LDD_1,
	72	GPIO60_LCD_LDD_2,
	73	GPIO61_LCD_LDD_3,
	74	GPIO62_LCD_LDD_4,
	75	GPIO63_LCD_LDD_5,
	76	GPIO64_LCD_LDD_6,
	77	GPIO65_LCD_LDD_7,
	78	GPIO66_LCD_LDD_8,
	79	GPIO67_LCD_LDD_9,
	80	GPIO68_LCD_LDD_10,
	81	GPIO69_LCD_LDD_11,
	82	GPIO70_LCD_LDD_12,
	83	GPIO71_LCD_LDD_13,
	84	GPIO72_LCD_LDD_14,
	85	GPIO73_LCD_LDD_15,
	86	GPIO74_LCD_FCLK,
	87	GPIO75_LCD_LCLK,
	88	GPIO76_LCD_PCLK,
	89
9b02b2df	90	/* BTUART */
	91	GPIO42_BTUART_RXD,
	92	GPIO43_BTUART_TXD,
	93	GPIO44_BTUART_CTS,
	94	GPIO45_BTUART_RTS,
	95
	96	/* PC Card */
	97	GPIO48_nPOE,
	98	GPIO49_nPWE,
	99	GPIO50_nPIOR,
	100	GPIO51_nPIOW,
	101	GPIO52_nPCE_1,
	102	GPIO53_nPCE_2,
	103	GPIO54_nPSKTSEL,
	104	GPIO55_nPREG,
	105	GPIO56_nPWAIT,
	106	GPIO57_nIOIS16,
	107
	108	/* MMC */
	109	GPIO6_MMC_CLK,
	110	GPIO8_MMC_CS0,
	111
	112	/* wakeup */
	113	GPIO1_GPIO \| WAKEUP_ON_EDGE_RISE,
	114	};
1da177e4	115
54386145	116	#define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
1da177e4 LT	117	#define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
1da177e4 LT	118
54386145 EM	119	void lubbock_set_hexled(uint32_t value)
	120	{
	121	LUB_HEXLED = value;
	122	}
	123
1da177e4 LT	124	void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
	125	{
	126	unsigned long flags;
	127
	128	local_irq_save(flags);
	129	LUB_MISC_WR = (LUB_MISC_WR & ~mask) \| (set & mask);
	130	local_irq_restore(flags);
	131	}
	132	EXPORT_SYMBOL(lubbock_set_misc_wr);
	133
	134	static unsigned long lubbock_irq_enabled;
	135
	136	static void lubbock_mask_irq(unsigned int irq)
	137	{
	138	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	139	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
	140	}
	141
	142	static void lubbock_unmask_irq(unsigned int irq)
	143	{
	144	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
	145	/* the irq can be acknowledged only if deasserted, so it's done here */
	146	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
	147	LUB_IRQ_MASK_EN = (lubbock_irq_enabled \|= (1 << lubbock_irq));
	148	}
	149
38c677cb DB	150	static struct irq_chip lubbock_irq_chip = {
38c677cb DB	151	.name = "FPGA",
1da177e4 LT	152	.ack = lubbock_mask_irq,
	153	.mask = lubbock_mask_irq,
	154	.unmask = lubbock_unmask_irq,
	155	};
	156
10dd5ce2	157	static void lubbock_irq_handler(unsigned int irq, struct irq_desc *desc)
1da177e4 LT	158	{
	159	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	160	do {
	161	GEDR(0) = GPIO_bit(0); /* clear our parent irq */
	162	if (likely(pending)) {
	163	irq = LUBBOCK_IRQ(0) + __ffs(pending);
d8aa0251	164	generic_handle_irq(irq);
1da177e4 LT	165	}
	166	pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	167	} while (pending);
	168	}
	169
	170	static void __init lubbock_init_irq(void)
	171	{
	172	int irq;
	173
cd49104d	174	pxa25x_init_irq();
1da177e4 LT	175
	176	/* setup extra lubbock irqs */
	177	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
	178	set_irq_chip(irq, &lubbock_irq_chip);
10dd5ce2	179	set_irq_handler(irq, handle_level_irq);
1da177e4 LT	180	set_irq_flags(irq, IRQF_VALID \| IRQF_PROBE);
	181	}
	182
	183	set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
6cab4860	184	set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
1da177e4 LT	185	}
1da177e4 LT	186
22f11c4e NP	187	#ifdef CONFIG_PM
	188
	189	static int lubbock_irq_resume(struct sys_device *dev)
	190	{
	191	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
	192	return 0;
	193	}
	194
	195	static struct sysdev_class lubbock_irq_sysclass = {
af5ca3f4	196	.name = "cpld_irq",
22f11c4e NP	197	.resume = lubbock_irq_resume,
	198	};
	199
	200	static struct sys_device lubbock_irq_device = {
	201	.cls = &lubbock_irq_sysclass,
	202	};
	203
	204	static int __init lubbock_irq_device_init(void)
	205	{
16f159b1 RK	206	int ret = -ENODEV;
	207
	208	if (machine_is_lubbock()) {
	209	ret = sysdev_class_register(&lubbock_irq_sysclass);
	210	if (ret == 0)
	211	ret = sysdev_register(&lubbock_irq_device);
	212	}
22f11c4e NP	213	return ret;
	214	}
	215
	216	device_initcall(lubbock_irq_device_init);
	217
	218	#endif
	219
1da177e4 LT	220	static int lubbock_udc_is_connected(void)
	221	{
	222	return (LUB_MISC_RD & (1 << 9)) == 0;
	223	}
	224
	225	static struct pxa2xx_udc_mach_info udc_info __initdata = {
	226	.udc_is_connected = lubbock_udc_is_connected,
	227	// no D+ pullup; lubbock can't connect/disconnect in software
	228	};
	229
	230	static struct resource sa1111_resources[] = {
	231	[0] = {
	232	.start = 0x10000000,
	233	.end = 0x10001fff,
	234	.flags = IORESOURCE_MEM,
	235	},
	236	[1] = {
	237	.start = LUBBOCK_SA1111_IRQ,
	238	.end = LUBBOCK_SA1111_IRQ,
	239	.flags = IORESOURCE_IRQ,
	240	},
	241	};
	242
	243	static struct platform_device sa1111_device = {
	244	.name = "sa1111",
	245	.id = -1,
	246	.num_resources = ARRAY_SIZE(sa1111_resources),
	247	.resource = sa1111_resources,
	248	};
	249
9df5db80 DB	250	/* ADS7846 is connected through SSP ... and if your board has J5 populated,
	251	* you can select it to replace the ucb1400 by switching the touchscreen cable
	252	* (to J5) and poking board registers (as done below). Else it's only useful
	253	* for the temperature sensors.
	254	*/
9df5db80	255	static struct pxa2xx_spi_master pxa_ssp_master_info = {
1f4de5a0	256	.num_chipselect = 1,
9df5db80 DB	257	};
9df5db80 DB	258
9df5db80 DB	259	static int lubbock_ads7846_pendown_state(void)
	260	{
	261	/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
	262	return 0;
	263	}
	264
	265	static struct ads7846_platform_data ads_info = {
	266	.model = 7846,
	267	.vref_delay_usecs = 100, /* internal, no cap */
	268	.get_pendown_state = lubbock_ads7846_pendown_state,
	269	// .x_plate_ohms = 500, /* GUESS! */
	270	// .y_plate_ohms = 500, /* GUESS! */
	271	};
	272
	273	static void ads7846_cs(u32 command)
	274	{
	275	static const unsigned TS_nCS = 1 << 11;
	276	lubbock_set_misc_wr(TS_nCS, (command == PXA2XX_CS_ASSERT) ? 0 : TS_nCS);
	277	}
	278
	279	static struct pxa2xx_spi_chip ads_hw = {
	280	.tx_threshold = 1,
	281	.rx_threshold = 2,
	282	.cs_control = ads7846_cs,
	283	};
	284
	285	static struct spi_board_info spi_board_info[] __initdata = { {
	286	.modalias = "ads7846",
	287	.platform_data = &ads_info,
	288	.controller_data = &ads_hw,
	289	.irq = LUBBOCK_BB_IRQ,
	290	.max_speed_hz = 120000 /* max sample rate at 3V */
	291	* 26 /* command + data + overhead */,
	292	.bus_num = 1,
	293	.chip_select = 0,
	294	},
	295	};
	296
e21e2d46 RK	297	static struct resource smc91x_resources[] = {
	298	[0] = {
	299	.name = "smc91x-regs",
	300	.start = 0x0c000c00,
	301	.end = 0x0c0fffff,
	302	.flags = IORESOURCE_MEM,
	303	},
	304	[1] = {
	305	.start = LUBBOCK_ETH_IRQ,
	306	.end = LUBBOCK_ETH_IRQ,
	307	.flags = IORESOURCE_IRQ \| IORESOURCE_IRQ_HIGHEDGE,
	308	},
	309	[2] = {
	310	.name = "smc91x-attrib",
	311	.start = 0x0e000000,
	312	.end = 0x0e0fffff,
	313	.flags = IORESOURCE_MEM,
	314	},
	315	};
	316
3aed74cd EM	317	static struct smc91x_platdata lubbock_smc91x_info = {
	318	.flags = SMC91X_USE_16BIT \| SMC91X_NOWAIT \| SMC91X_IO_SHIFT_2,
	319	};
	320
1da177e4 LT	321	static struct platform_device smc91x_device = {
	322	.name = "smc91x",
	323	.id = -1,
	324	.num_resources = ARRAY_SIZE(smc91x_resources),
	325	.resource = smc91x_resources,
3aed74cd EM	326	.dev = {
	327	.platform_data = &lubbock_smc91x_info,
	328	},
1da177e4 LT	329	};
1da177e4 LT	330
74ec71e1 TP	331	static struct resource flash_resources[] = {
	332	[0] = {
	333	.start = 0x00000000,
	334	.end = SZ_64M - 1,
	335	.flags = IORESOURCE_MEM,
	336	},
	337	[1] = {
	338	.start = 0x04000000,
	339	.end = 0x04000000 + SZ_64M - 1,
	340	.flags = IORESOURCE_MEM,
	341	},
	342	};
	343
	344	static struct mtd_partition lubbock_partitions[] = {
	345	{
	346	.name = "Bootloader",
	347	.size = 0x00040000,
	348	.offset = 0,
	349	.mask_flags = MTD_WRITEABLE /* force read-only */
	350	},{
	351	.name = "Kernel",
	352	.size = 0x00100000,
	353	.offset = 0x00040000,
	354	},{
	355	.name = "Filesystem",
	356	.size = MTDPART_SIZ_FULL,
	357	.offset = 0x00140000
	358	}
	359	};
	360
	361	static struct flash_platform_data lubbock_flash_data[2] = {
	362	{
	363	.map_name = "cfi_probe",
	364	.parts = lubbock_partitions,
	365	.nr_parts = ARRAY_SIZE(lubbock_partitions),
	366	}, {
	367	.map_name = "cfi_probe",
	368	.parts = NULL,
	369	.nr_parts = 0,
	370	}
	371	};
	372
	373	static struct platform_device lubbock_flash_device[2] = {
	374	{
	375	.name = "pxa2xx-flash",
	376	.id = 0,
	377	.dev = {
	378	.platform_data = &lubbock_flash_data[0],
	379	},
	380	.resource = &flash_resources[0],
	381	.num_resources = 1,
	382	},
	383	{
	384	.name = "pxa2xx-flash",
	385	.id = 1,
	386	.dev = {
	387	.platform_data = &lubbock_flash_data[1],
	388	},
	389	.resource = &flash_resources[1],
	390	.num_resources = 1,
	391	},
	392	};
	393
1da177e4 LT	394	static struct platform_device *devices[] __initdata = {
	395	&sa1111_device,
	396	&smc91x_device,
74ec71e1 TP	397	&lubbock_flash_device[0],
74ec71e1 TP	398	&lubbock_flash_device[1],
1da177e4 LT	399	};
1da177e4 LT	400
d14b272b	401	static struct pxafb_mode_info sharp_lm8v31_mode = {
1da177e4 LT	402	.pixclock = 270000,
	403	.xres = 640,
	404	.yres = 480,
	405	.bpp = 16,
	406	.hsync_len = 1,
	407	.left_margin = 3,
	408	.right_margin = 3,
	409	.vsync_len = 1,
	410	.upper_margin = 0,
	411	.lower_margin = 0,
	412	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	413	.cmap_greyscale = 0,
d14b272b RP	414	};
	415
	416	static struct pxafb_mach_info sharp_lm8v31 = {
	417	.modes = &sharp_lm8v31_mode,
	418	.num_modes = 1,
1da177e4 LT	419	.cmap_inverse = 0,
1da177e4 LT	420	.cmap_static = 0,
0454bd09	421	.lcd_conn = LCD_COLOR_DSTN_16BPP \| LCD_PCLK_EDGE_FALL \|
ffebabe0	422	LCD_AC_BIAS_FREQ(255),
1da177e4 LT	423	};
1da177e4 LT	424
85eb226c DB	425	#define MMC_POLL_RATE msecs_to_jiffies(1000)
	426
	427	static void lubbock_mmc_poll(unsigned long);
40220c1a	428	static irq_handler_t mmc_detect_int;
85eb226c DB	429
	430	static struct timer_list mmc_timer = {
	431	.function = lubbock_mmc_poll,
	432	};
	433
	434	static void lubbock_mmc_poll(unsigned long data)
	435	{
	436	unsigned long flags;
	437
	438	/* clear any previous irq state, then ... */
	439	local_irq_save(flags);
	440	LUB_IRQ_SET_CLR &= ~(1 << 0);
	441	local_irq_restore(flags);
	442
	443	/* poll until mmc/sd card is removed */
	444	if (LUB_IRQ_SET_CLR & (1 << 0))
	445	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	446	else {
2326eb98	447	(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
85eb226c DB	448	enable_irq(LUBBOCK_SD_IRQ);
	449	}
	450	}
	451
0cd61b68	452	static irqreturn_t lubbock_detect_int(int irq, void *data)
85eb226c DB	453	{
	454	/* IRQ is level triggered; disable, and poll for removal */
	455	disable_irq(irq);
	456	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	457
0cd61b68	458	return mmc_detect_int(irq, data);
85eb226c DB	459	}
	460
	461	static int lubbock_mci_init(struct device *dev,
40220c1a	462	irq_handler_t detect_int,
85eb226c	463	void *data)
1da177e4	464	{
85eb226c DB	465	/* detect card insert/eject */
	466	mmc_detect_int = detect_int;
	467	init_timer(&mmc_timer);
	468	mmc_timer.data = (unsigned long) data;
	469	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea	470	IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c DB	471	}
	472
	473	static int lubbock_mci_get_ro(struct device *dev)
	474	{
	475	return (LUB_MISC_RD & (1 << 2)) != 0;
	476	}
	477
	478	static void lubbock_mci_exit(struct device dev, void data)
	479	{
	480	free_irq(LUBBOCK_SD_IRQ, data);
	481	del_timer_sync(&mmc_timer);
1da177e4 LT	482	}
	483
	484	static struct pxamci_platform_data lubbock_mci_platform_data = {
7a648256 RJ	485	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
	486	.detect_delay = 1,
	487	.init = lubbock_mci_init,
	488	.get_ro = lubbock_mci_get_ro,
	489	.exit = lubbock_mci_exit,
	490	.gpio_card_detect = -1,
	491	.gpio_card_ro = -1,
	492	.gpio_power = -1,
1da177e4 LT	493	};
1da177e4 LT	494
6f475c01 NP	495	static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
	496	{
	497	unsigned long flags;
	498
	499	local_irq_save(flags);
	500	if (mode & IR_SIRMODE) {
	501	LUB_MISC_WR &= ~(1 << 4);
	502	} else if (mode & IR_FIRMODE) {
	503	LUB_MISC_WR \|= 1 << 4;
	504	}
0fc3ff31	505	pxa2xx_transceiver_mode(dev, mode);
6f475c01 NP	506	local_irq_restore(flags);
	507	}
	508
	509	static struct pxaficp_platform_data lubbock_ficp_platform_data = {
c4bd0172 MV	510	.gpio_pwdown = -1,
	511	.transceiver_cap = IR_SIRMODE \| IR_FIRMODE,
	512	.transceiver_mode = lubbock_irda_transceiver_mode,
6f475c01 NP	513	};
6f475c01 NP	514
1da177e4 LT	515	static void __init lubbock_init(void)
1da177e4 LT	516	{
74ec71e1 TP	517	int flashboot = (LUB_CONF_SWITCHES & 1);
74ec71e1 TP	518
9b02b2df	519	pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config));
9b02b2df	520
c1ed406c	521	clk_add_alias("SA1111_CLK", NULL, "GPIO11_CLK", NULL);
1da177e4 LT	522	pxa_set_udc_info(&udc_info);
	523	set_pxa_fb_info(&sharp_lm8v31);
	524	pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01	525	pxa_set_ficp_info(&lubbock_ficp_platform_data);
9f19d638	526	pxa_set_ac97_info(NULL);
74ec71e1 TP	527
	528	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
	529	(BOOT_DEF & 1) ? 2 : 4;
	530	/* Compensate for the nROMBT switch which swaps the flash banks */
	531	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
	532	flashboot?"Flash":"ROM", flashboot);
	533
	534	lubbock_flash_data[flashboot^1].name = "application-flash";
	535	lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4	536	(void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80	537
e172274c	538	pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
9df5db80	539	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4 LT	540	}
	541
	542	static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb DS	543	{ /* CPLD */
	544	.virtual = LUBBOCK_FPGA_VIRT,
	545	.pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
	546	.length = 0x00100000,
	547	.type = MT_DEVICE
	548	}
1da177e4 LT	549	};
	550
	551	static void __init lubbock_map_io(void)
	552	{
	553	pxa_map_io();
	554	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
	555
1da177e4 LT	556	PCFR \|= PCFR_OPDE;
	557	}
	558
	559	MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6	560	/* Maintainer: MontaVista Software Inc. */
e9dea0c6	561	.phys_io = 0x40000000,
68070bde	562	.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 RK	563	.map_io = lubbock_map_io,
e9dea0c6 RK	564	.init_irq = lubbock_init_irq,
1da177e4	565	.timer = &pxa_timer,
e9dea0c6	566	.init_machine = lubbock_init,
1da177e4	567	MACHINE_END