path: root/arch/arm/mach-pxa/stargate2.c

/*
 *  linux/arch/arm/mach-pxa/stargate2.c
 *
 *  Author:	Ed C. Epp
 *  Created:	Nov 05, 2002
 *  Copyright:	Intel Corp.
 *
 *  Modified 2009:  Jonathan Cameron <jic23@cam.ac.uk>
 *
 *  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/init.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/sched.h>
#include <linux/bitops.h>
#include <linux/fb.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/regulator/machine.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/plat-ram.h>
#include <linux/mtd/partitions.h>

#include <linux/i2c/pcf857x.h>
#include <linux/i2c/at24.h>
#include <linux/smc91x.h>
#include <linux/gpio.h>
#include <linux/leds.h>

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

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/mach/flash.h>

#include <mach/pxa27x.h>
#include <plat/i2c.h>
#include <mach/mmc.h>
#include <mach/udc.h>
#include <mach/pxa2xx_spi.h>
#include <mach/pxa27x-udc.h>

#include <linux/spi/spi.h>
#include <linux/mfd/da903x.h>
#include <linux/sht15.h>

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

#define STARGATE_NR_IRQS	(IRQ_BOARD_START + 8)

/* Bluetooth */
#define SG2_BT_RESET		81

/* SD */
#define SG2_GPIO_nSD_DETECT	90
#define SG2_SD_POWER_ENABLE	89

static unsigned long sg2_im2_unified_pin_config[] __initdata = {
	/* Device Identification for wakeup*/
	GPIO102_GPIO,
	/* DA9030 */
	GPIO1_GPIO,

	/* MMC */
	GPIO32_MMC_CLK,
	GPIO112_MMC_CMD,
	GPIO92_MMC_DAT_0,
	GPIO109_MMC_DAT_1,
	GPIO110_MMC_DAT_2,
	GPIO111_MMC_DAT_3,

	/* 802.15.4 radio - driver out of mainline */
	GPIO22_GPIO,			/* CC_RSTN */
	GPIO114_GPIO,			/* CC_FIFO */
	GPIO116_GPIO,			/* CC_CCA */
	GPIO0_GPIO,			/* CC_FIFOP */
	GPIO16_GPIO,			/* CCSFD */
	GPIO115_GPIO,			/* Power enable */

	/* I2C */
	GPIO117_I2C_SCL,
	GPIO118_I2C_SDA,

	/* SSP 3 - 802.15.4 radio */
	GPIO39_GPIO,			/* Chip Select */
	GPIO34_SSP3_SCLK,
	GPIO35_SSP3_TXD,
	GPIO41_SSP3_RXD,

	/* SSP 2 to daughter boards */
	GPIO11_SSP2_RXD,
	GPIO38_SSP2_TXD,
	GPIO36_SSP2_SCLK,
	GPIO37_GPIO, /* chip select */

	/* SSP 1 - to daughter boards */
	GPIO24_GPIO,			/* Chip Select */
	GPIO23_SSP1_SCLK,
	GPIO25_SSP1_TXD,
	GPIO26_SSP1_RXD,

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

	/* STUART  - IM2 via debug board not sure on SG2*/
	GPIO46_STUART_RXD,
	GPIO47_STUART_TXD,

	/* Basic sensor board */
	GPIO96_GPIO,	/* accelerometer interrupt */
	GPIO99_GPIO,	/* ADC interrupt */

	/* SHT15 */
	GPIO100_GPIO,
	GPIO98_GPIO,

	/* Basic sensor board */
	GPIO96_GPIO,	/* accelerometer interrupt */
	GPIO99_GPIO,	/* ADC interrupt */

	/* Connector pins specified as gpios */
	GPIO94_GPIO, /* large basic connector pin 14 */
	GPIO10_GPIO, /* large basic connector pin 23 */
};

static struct sht15_platform_data platform_data_sht15 = {
	.gpio_data =  100,
	.gpio_sck  =  98,
};

static struct platform_device sht15 = {
	.name = "sht15",
	.id = -1,
	.dev = {
		.platform_data = &platform_data_sht15,
	},
};

static struct regulator_consumer_supply stargate2_sensor_3_con[] = {
	{
		.dev = &sht15.dev,
		.supply = "vcc",
	},
};

enum stargate2_ldos{
	vcc_vref,
	vcc_cc2420,
	/* a mote connector? */
	vcc_mica,
	/* the CSR bluecore chip */
	vcc_bt,
	/* The two voltages available to sensor boards */
	vcc_sensor_1_8,
	vcc_sensor_3,
	/* directly connected to the pxa27x */
	vcc_sram_ext,
	vcc_pxa_pll,
	vcc_pxa_usim, /* Reference voltage for certain gpios */
	vcc_pxa_mem,
	vcc_pxa_flash,
	vcc_pxa_core, /*Dc-Dc buck not yet supported */
	vcc_lcd,
	vcc_bb,
	vcc_bbio, /*not sure!*/
	vcc_io, /* cc2420 802.15.4 radio and pxa vcc_io ?*/
};

/* The values of the various regulator constraints are obviously dependent
 * on exactly what is wired to each ldo.  Unfortunately this information is
 * not generally available.  More information has been requested from Xbow.
 */
static struct regulator_init_data stargate2_ldo_init_data[] = {
	[vcc_bbio] = {
		.constraints = { /* board default 1.8V */
			.name = "vcc_bbio",
			.min_uV = 1800000,
			.max_uV = 1800000,
		},
	},
	[vcc_bb] = {
		.constraints = { /* board default 2.8V */
			.name = "vcc_bb",
			.min_uV = 2700000,
			.max_uV = 3000000,
		},
	},
	[vcc_pxa_flash] = {
		.constraints = {/* default is 1.8V */
			.name = "vcc_pxa_flash",
			.min_uV = 1800000,
			.max_uV = 1800000,
		},
	},
	[vcc_cc2420] = { /* also vcc_io */
		.constraints = {
			/* board default is 2.8V */
			.name = "vcc_cc2420",
			.min_uV = 2700000,
			.max_uV = 3300000,
		},
	},
	[vcc_vref] = { /* Reference for what? */
		.constraints = { /* default 1.8V */
			.name = "vcc_vref",
			.