[mirror_ubuntu-bionic-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 irqchip lubbock_irq_chip = {
	.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
	81	static struct irqchip lubbock_irq_chip = {
	82	.ack = lubbock_mask_irq,
	83	.mask = lubbock_mask_irq,
	84	.unmask = lubbock_unmask_irq,
	85	};
	86
	87	static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
	88	struct pt_regs *regs)
	89	{
	90	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	91	do {
	92	GEDR(0) = GPIO_bit(0); /* clear our parent irq */
	93	if (likely(pending)) {
	94	irq = LUBBOCK_IRQ(0) + __ffs(pending);
	95	desc = irq_desc + irq;
664399e1	96	desc_handle_irq(irq, desc, regs);
1da177e4 LT	97	}
	98	pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
	99	} while (pending);
	100	}
	101
	102	static void __init lubbock_init_irq(void)
	103	{
	104	int irq;
	105
	106	pxa_init_irq();
	107
	108	/* setup extra lubbock irqs */
	109	for (irq = LUBBOCK_IRQ(0); irq <= LUBBOCK_LAST_IRQ; irq++) {
	110	set_irq_chip(irq, &lubbock_irq_chip);
	111	set_irq_handler(irq, do_level_IRQ);
	112	set_irq_flags(irq, IRQF_VALID \| IRQF_PROBE);
	113	}
	114
	115	set_irq_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
	116	set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
	117	}
	118
22f11c4e NP	119	#ifdef CONFIG_PM
	120
	121	static int lubbock_irq_resume(struct sys_device *dev)
	122	{
	123	LUB_IRQ_MASK_EN = lubbock_irq_enabled;
	124	return 0;
	125	}
	126
	127	static struct sysdev_class lubbock_irq_sysclass = {
	128	set_kset_name("cpld_irq"),
	129	.resume = lubbock_irq_resume,
	130	};
	131
	132	static struct sys_device lubbock_irq_device = {
	133	.cls = &lubbock_irq_sysclass,
	134	};
	135
	136	static int __init lubbock_irq_device_init(void)
	137	{
	138	int ret = sysdev_class_register(&lubbock_irq_sysclass);
	139	if (ret == 0)
	140	ret = sysdev_register(&lubbock_irq_device);
	141	return ret;
	142	}
	143
	144	device_initcall(lubbock_irq_device_init);
	145
	146	#endif
	147
1da177e4 LT	148	static int lubbock_udc_is_connected(void)
	149	{
	150	return (LUB_MISC_RD & (1 << 9)) == 0;
	151	}
	152
	153	static struct pxa2xx_udc_mach_info udc_info __initdata = {
	154	.udc_is_connected = lubbock_udc_is_connected,
	155	// no D+ pullup; lubbock can't connect/disconnect in software
	156	};
	157
2cef2d55 NP	158	static struct platform_device lub_audio_device = {
	159	.name = "pxa2xx-ac97",
	160	.id = -1,
	161	};
	162
1da177e4 LT	163	static struct resource sa1111_resources[] = {
	164	[0] = {
	165	.start = 0x10000000,
	166	.end = 0x10001fff,
	167	.flags = IORESOURCE_MEM,
	168	},
	169	[1] = {
	170	.start = LUBBOCK_SA1111_IRQ,
	171	.end = LUBBOCK_SA1111_IRQ,
	172	.flags = IORESOURCE_IRQ,
	173	},
	174	};
	175
	176	static struct platform_device sa1111_device = {
	177	.name = "sa1111",
	178	.id = -1,
	179	.num_resources = ARRAY_SIZE(sa1111_resources),
	180	.resource = sa1111_resources,
	181	};
	182
	183	static struct resource smc91x_resources[] = {
	184	[0] = {
	185	.name = "smc91x-regs",
85eb226c	186	.start = 0x0c000c00,
1da177e4 LT	187	.end = 0x0c0fffff,
	188	.flags = IORESOURCE_MEM,
	189	},
	190	[1] = {
	191	.start = LUBBOCK_ETH_IRQ,
	192	.end = LUBBOCK_ETH_IRQ,
	193	.flags = IORESOURCE_IRQ,
	194	},
	195	[2] = {
	196	.name = "smc91x-attrib",
	197	.start = 0x0e000000,
	198	.end = 0x0e0fffff,
	199	.flags = IORESOURCE_MEM,
	200	},
	201	};
	202
9df5db80 DB	203	/* ADS7846 is connected through SSP ... and if your board has J5 populated,
	204	* you can select it to replace the ucb1400 by switching the touchscreen cable
	205	* (to J5) and poking board registers (as done below). Else it's only useful
	206	* for the temperature sensors.
	207	*/
	208	static struct resource pxa_ssp_resources[] = {
	209	[0] = {
	210	.start = __PREG(SSCR0_P(1)),
	211	.end = __PREG(SSCR0_P(1)) + 0x14,
	212	.flags = IORESOURCE_MEM,
	213	},
	214	[1] = {
	215	.start = IRQ_SSP,
	216	.end = IRQ_SSP,
	217	.flags = IORESOURCE_IRQ,
	218	},
	219	};
	220
	221	static struct pxa2xx_spi_master pxa_ssp_master_info = {
	222	.ssp_type = PXA25x_SSP,
	223	.clock_enable = CKEN3_SSP,
	224	.num_chipselect = 0,
	225	};
	226
	227	static struct platform_device pxa_ssp = {
	228	.name = "pxa2xx-spi",
	229	.id = 1,
	230	.resource = pxa_ssp_resources,
	231	.num_resources = ARRAY_SIZE(pxa_ssp_resources),
	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
1da177e4 LT	275	static struct platform_device smc91x_device = {
	276	.name = "smc91x",
	277	.id = -1,
	278	.num_resources = ARRAY_SIZE(smc91x_resources),
	279	.resource = smc91x_resources,
	280	};
	281
74ec71e1 TP	282	static struct resource flash_resources[] = {
	283	[0] = {
	284	.start = 0x00000000,
	285	.end = SZ_64M - 1,
	286	.flags = IORESOURCE_MEM,
	287	},
	288	[1] = {
	289	.start = 0x04000000,
	290	.end = 0x04000000 + SZ_64M - 1,
	291	.flags = IORESOURCE_MEM,
	292	},
	293	};
	294
	295	static struct mtd_partition lubbock_partitions[] = {
	296	{
	297	.name = "Bootloader",
	298	.size = 0x00040000,
	299	.offset = 0,
	300	.mask_flags = MTD_WRITEABLE /* force read-only */
	301	},{
	302	.name = "Kernel",
	303	.size = 0x00100000,
	304	.offset = 0x00040000,
	305	},{
	306	.name = "Filesystem",
	307	.size = MTDPART_SIZ_FULL,
	308	.offset = 0x00140000
	309	}
	310	};
	311
	312	static struct flash_platform_data lubbock_flash_data[2] = {
	313	{
	314	.map_name = "cfi_probe",
	315	.parts = lubbock_partitions,
	316	.nr_parts = ARRAY_SIZE(lubbock_partitions),
	317	}, {
	318	.map_name = "cfi_probe",
	319	.parts = NULL,
	320	.nr_parts = 0,
	321	}
	322	};
	323
	324	static struct platform_device lubbock_flash_device[2] = {
	325	{
	326	.name = "pxa2xx-flash",
	327	.id = 0,
	328	.dev = {
	329	.platform_data = &lubbock_flash_data[0],
	330	},
	331	.resource = &flash_resources[0],
	332	.num_resources = 1,
	333	},
	334	{
	335	.name = "pxa2xx-flash",
	336	.id = 1,
	337	.dev = {
	338	.platform_data = &lubbock_flash_data[1],
	339	},
	340	.resource = &flash_resources[1],
	341	.num_resources = 1,
	342	},
	343	};
	344
1da177e4 LT	345	static struct platform_device *devices[] __initdata = {
1da177e4 LT	346	&sa1111_device,
2cef2d55	347	&lub_audio_device,
1da177e4	348	&smc91x_device,
74ec71e1 TP	349	&lubbock_flash_device[0],
74ec71e1 TP	350	&lubbock_flash_device[1],
9df5db80	351	&pxa_ssp,
1da177e4 LT	352	};
	353
	354	static struct pxafb_mach_info sharp_lm8v31 __initdata = {
	355	.pixclock = 270000,
	356	.xres = 640,
	357	.yres = 480,
	358	.bpp = 16,
	359	.hsync_len = 1,
	360	.left_margin = 3,
	361	.right_margin = 3,
	362	.vsync_len = 1,
	363	.upper_margin = 0,
	364	.lower_margin = 0,
	365	.sync = FB_SYNC_HOR_HIGH_ACT \| FB_SYNC_VERT_HIGH_ACT,
	366	.cmap_greyscale = 0,
	367	.cmap_inverse = 0,
	368	.cmap_static = 0,
	369	.lccr0 = LCCR0_SDS,
	370	.lccr3 = LCCR3_PCP \| LCCR3_Acb(255),
	371	};
	372
85eb226c DB	373	#define MMC_POLL_RATE msecs_to_jiffies(1000)
	374
	375	static void lubbock_mmc_poll(unsigned long);
	376	static irqreturn_t (mmc_detect_int)(int, void , struct pt_regs *);
	377
	378	static struct timer_list mmc_timer = {
	379	.function = lubbock_mmc_poll,
	380	};
	381
	382	static void lubbock_mmc_poll(unsigned long data)
	383	{
	384	unsigned long flags;
	385
	386	/* clear any previous irq state, then ... */
	387	local_irq_save(flags);
	388	LUB_IRQ_SET_CLR &= ~(1 << 0);
	389	local_irq_restore(flags);
	390
	391	/* poll until mmc/sd card is removed */
	392	if (LUB_IRQ_SET_CLR & (1 << 0))
	393	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	394	else {
	395	(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data, NULL);
	396	enable_irq(LUBBOCK_SD_IRQ);
	397	}
	398	}
	399
	400	static irqreturn_t lubbock_detect_int(int irq, void data, struct pt_regs regs)
	401	{
	402	/* IRQ is level triggered; disable, and poll for removal */
	403	disable_irq(irq);
	404	mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
	405
	406	return mmc_detect_int(irq, data, regs);
	407	}
	408
	409	static int lubbock_mci_init(struct device *dev,
	410	irqreturn_t (detect_int)(int, void , struct pt_regs *),
	411	void *data)
1da177e4 LT	412	{
	413	/* setup GPIO for PXA25x MMC controller */
	414	pxa_gpio_mode(GPIO6_MMCCLK_MD);
	415	pxa_gpio_mode(GPIO8_MMCCS0_MD);
	416
85eb226c DB	417	/* detect card insert/eject */
	418	mmc_detect_int = detect_int;
	419	init_timer(&mmc_timer);
	420	mmc_timer.data = (unsigned long) data;
	421	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
52e405ea	422	IRQF_SAMPLE_RANDOM, "lubbock-sd-detect", data);
85eb226c DB	423	}
	424
	425	static int lubbock_mci_get_ro(struct device *dev)
	426	{
	427	return (LUB_MISC_RD & (1 << 2)) != 0;
	428	}
	429
	430	static void lubbock_mci_exit(struct device dev, void data)
	431	{
	432	free_irq(LUBBOCK_SD_IRQ, data);
	433	del_timer_sync(&mmc_timer);
1da177e4 LT	434	}
	435
	436	static struct pxamci_platform_data lubbock_mci_platform_data = {
	437	.ocr_mask = MMC_VDD_32_33\|MMC_VDD_33_34,
85eb226c	438	.detect_delay = 1,
1da177e4	439	.init = lubbock_mci_init,
85eb226c DB	440	.get_ro = lubbock_mci_get_ro,
85eb226c DB	441	.exit = lubbock_mci_exit,
1da177e4 LT	442	};
1da177e4 LT	443
6f475c01 NP	444	static void lubbock_irda_transceiver_mode(struct device *dev, int mode)
	445	{
	446	unsigned long flags;
	447
	448	local_irq_save(flags);
	449	if (mode & IR_SIRMODE) {
	450	LUB_MISC_WR &= ~(1 << 4);
	451	} else if (mode & IR_FIRMODE) {
	452	LUB_MISC_WR \|= 1 << 4;
	453	}
	454	local_irq_restore(flags);
	455	}
	456
	457	static struct pxaficp_platform_data lubbock_ficp_platform_data = {
	458	.transceiver_cap = IR_SIRMODE \| IR_FIRMODE,
	459	.transceiver_mode = lubbock_irda_transceiver_mode,
	460	};
	461
1da177e4 LT	462	static void __init lubbock_init(void)
1da177e4 LT	463	{
74ec71e1 TP	464	int flashboot = (LUB_CONF_SWITCHES & 1);
74ec71e1 TP	465
1da177e4 LT	466	pxa_set_udc_info(&udc_info);
	467	set_pxa_fb_info(&sharp_lm8v31);
	468	pxa_set_mci_info(&lubbock_mci_platform_data);
6f475c01	469	pxa_set_ficp_info(&lubbock_ficp_platform_data);
74ec71e1 TP	470
	471	lubbock_flash_data[0].width = lubbock_flash_data[1].width =
	472	(BOOT_DEF & 1) ? 2 : 4;
	473	/* Compensate for the nROMBT switch which swaps the flash banks */
	474	printk(KERN_NOTICE "Lubbock configured to boot from %s (bank %d)\n",
	475	flashboot?"Flash":"ROM", flashboot);
	476
	477	lubbock_flash_data[flashboot^1].name = "application-flash";
	478	lubbock_flash_data[flashboot].name = "boot-rom";
1da177e4	479	(void) platform_add_devices(devices, ARRAY_SIZE(devices));
9df5db80 DB	480
9df5db80 DB	481	spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
1da177e4 LT	482	}
	483
	484	static struct map_desc lubbock_io_desc[] __initdata = {
6f9182eb DS	485	{ /* CPLD */
	486	.virtual = LUBBOCK_FPGA_VIRT,
	487	.pfn = __phys_to_pfn(LUBBOCK_FPGA_PHYS),
	488	.length = 0x00100000,
	489	.type = MT_DEVICE
	490	}
1da177e4 LT	491	};
	492
	493	static void __init lubbock_map_io(void)
	494	{
	495	pxa_map_io();
	496	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
	497
9df5db80 DB	498	/* SSP data pins */
	499	pxa_gpio_mode(GPIO23_SCLK_MD);
	500	pxa_gpio_mode(GPIO25_STXD_MD);
	501	pxa_gpio_mode(GPIO26_SRXD_MD);
	502
1da177e4 LT	503	/* This enables the BTUART */
	504	pxa_gpio_mode(GPIO42_BTRXD_MD);
	505	pxa_gpio_mode(GPIO43_BTTXD_MD);
	506	pxa_gpio_mode(GPIO44_BTCTS_MD);
	507	pxa_gpio_mode(GPIO45_BTRTS_MD);
	508
	509	/* This is for the SMC chip select */
	510	pxa_gpio_mode(GPIO79_nCS_3_MD);
	511
	512	/* setup sleep mode values */
	513	PWER = 0x00000002;
	514	PFER = 0x00000000;
	515	PRER = 0x00000002;
	516	PGSR0 = 0x00008000;
	517	PGSR1 = 0x003F0202;
	518	PGSR2 = 0x0001C000;
	519	PCFR \|= PCFR_OPDE;
	520	}
	521
	522	MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
e9dea0c6	523	/* Maintainer: MontaVista Software Inc. */
e9dea0c6	524	.phys_io = 0x40000000,
68070bde	525	.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
e9dea0c6 RK	526	.map_io = lubbock_map_io,
e9dea0c6 RK	527	.init_irq = lubbock_init_irq,
1da177e4	528	.timer = &pxa_timer,
e9dea0c6	529	.init_machine = lubbock_init,
1da177e4	530	MACHINE_END