2 files changed, 1066 insertions, 660 deletions

diff --git a/io-module/eeprom/eeprom.bin b/io-module/eeprom/eeprom.bin
new file mode 100644
index 0000000..985f368
--- /dev/null
+++ b/io-module/eeprom/eeprom.bin
diff --git a/io-module/mts_io.c b/io-module/mts_io.c
index bc5db24..d95eed5 100644
--- a/io-module/mts_io.c
+++ b/io-module/mts_io.c
@@ -36,25 +36,36 @@
 #include <linux/device.h>
 #include <linux/bitops.h>
 #include <linux/spi/spi.h>
+#include <linux/i2c/at24.h>
+#include <linux/kmod.h>
 
 #include "mts_io.h"
 
-#define DRIVER_VERSION	"v0.2.0"
+#define DRIVER_VERSION	"v0.4.0"
 #define DRIVER_AUTHOR	"James Maki <jmaki@multitech.com>"
 #define DRIVER_DESC	"MTCDP IO Controller"
 #define DRIVER_NAME	"mts-io"
 
 #define PLATFORM_NAME	"mtcdp"
 
-#define DEBUG 0
+#define DEBUG		1
 
+#define __log(level, name, format, args...) \
+	printk(level "[" name "] " DRIVER_NAME ":%s:%d: " format "\n" , \
+			__func__ , __LINE__ , ## args)
+
+#define log_emerg(format, args...)	__log(KERN_EMERG, "EMERG", format , ## args)
+#define log_alert(format, args...)	__log(KERN_ALERT, "ALERT", format , ## args)
+#define log_crit(format, args...)	__log(KERN_CRIT, "CRIT", format , ## args)
+#define log_error(format, args...)	__log(KERN_ERR, "ERROR", format , ## args)
+#define log_warning(format, args...)	__log(KERN_WARNING, "WARNING", format , ## args)
+#define log_notice(format, args...)	__log(KERN_NOTICE, "NOTICE", format , ## args)
+#define log_info(format, args...)	__log(KERN_INFO, "INFO", format , ## args)
 #if DEBUG
-#  define dbg(fmt, args...)	printk(KERN_DEBUG DRIVER_NAME ": " fmt "\n" , ##args)
+#  define log_debug(format, args...)	__log(KERN_DEBUG, "DEBUG", format , ## args)
 #else
-#  define dbg(fmt, args...)	do {} while (0)
+#  define log_debug(format, args...) do {} while (0)
 #endif
-#define error(fmt, args...)	printk(KERN_ERR DRIVER_NAME ": " fmt "\n" , ##args)
-#define info(fmt, args...)	printk(KERN_INFO DRIVER_NAME ": " fmt "\n" , ##args)
 
 enum {
 	LED_OFF,
@@ -62,41 +73,6 @@ enum {
 	LED_FLASHING,
 };
 
-#define BOARD_REVA		0
-#define BOARD_REVB		1
-#define BOARD_REVC		2
-
-static u8 board_rev = BOARD_REVA;
-
-#define LED_CD_BIT		BIT(0)
-#define EXTSERIAL_RI_BIT	BIT(1)
-#define EXTSERIAL_DSR_BIT	BIT(2)
-#define CS0_BIT3		BIT(3)
-#define LED_SIG1_BIT		BIT(4)
-#define LED_SIG2_BIT		BIT(5)
-#define LED_SIG3_BIT		BIT(6)
-#define EXTSERIAL_DCD_BIT	BIT(7)
-
-#define GPIO_VER0		AT91_PIN_PA23
-#define GPIO_VER1		AT91_PIN_PA24
-#define GPIO_STATUS_LED		AT91_PIN_PA30
-#define GPIO_LS_LED		AT91_PIN_PC9
-#define GPIO_ENIO		AT91_PIN_PC15
-#define GPIO_ETH0_ENABLED	AT91_PIN_PB31
-#define GPIO_RADIO_RESET	AT91_PIN_PB30
-#define GPIO_OPTRST		AT91_PIN_PA22
-#define GPIO_RSERSRC		AT91_PIN_PC7
-#define GPIO_DBSERON		AT91_PIN_PC6
-#define GPIO_DTR1		AT91_PIN_PC10
-#define GPIO_RXD1MON		AT91_PIN_PC8
-#define GPIO_EXTIN0		AT91_PIN_PB13
-#define GPIO_EXTIN1		AT91_PIN_PB12
-#define GPIO_EXTIN2		AT91_PIN_PB11
-#define GPIO_EXTIN3		AT91_PIN_PB10
-#define GPIO_EXTIN4		AT91_PIN_PB9
-#define GPIO_EXTIN5		AT91_PIN_PB8
-#define GPIO_GPS_NINT2		AT91_PIN_PC2
-
 #define LED_STATUS_CONTROLLABLE		0
 #define LED_LS_CONTROLLABLE		0
 
@@ -104,28 +80,332 @@ static u8 board_rev = BOARD_REVA;
 static int led_mode_status = LED_OFF;
 #endif
 
-static struct spi_device *spi_sregout;
-static u8 spi_sregout_byte;
-static DEFINE_MUTEX(spi_sregout_mutex);
+#define SOUT_LED_CD_BIT			BIT(0)
+#define SOUT_EXTSERIAL_RI_BIT		BIT(1)
+#define SOUT_EXTSERIAL_DSR_BIT		BIT(2)
+#define SOUT_LED_DTR			BIT(3)
+#define SOUT_LED_SIG1_BIT		BIT(4)
+#define SOUT_LED_SIG2_BIT		BIT(5)
+#define SOUT_LED_SIG3_BIT		BIT(6)
+#define SOUT_EXTSERIAL_DCD_BIT		BIT(7)
+
+enum {
+	GPIO_DIR_INPUT,
+	GPIO_DIR_OUTPUT,
+};
+
+struct gpio_pin {
+	char name[32];
+	unsigned pin;
+	int direction;
+	int output_value;
+	int use_pullup;
+};
 
-static struct spi_device *spi_temp;
+static struct gpio_pin *gpio_pins;
+
+static struct gpio_pin gpio_pins_mtcdp_0_0[] = {
+	{
+		.name = "ENIO",
+		.pin = AT91_PIN_PC15,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "ETH0_ENABLED",
+		.pin = AT91_PIN_PB31,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "RADIO_RESET",
+		.pin = AT91_PIN_PB30,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "DEVICE_RESET",
+		.pin = AT91_PIN_PA22,
+		.direction = GPIO_DIR_INPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+#if LED_LS_CONTROLLABLE
+	{
+		.name = "LS_LED",
+		.pin = AT91_PIN_PC9,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+#endif
+#if LED_STATUS_CONTROLLABLE
+	{
+		.name = "STATUS_LED",
+		.pin = AT91_PIN_PA30,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+#endif
+	{
+		.name = "RSERSRC",
+		.pin = AT91_PIN_PC7,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "DTR1",
+		.pin = AT91_PIN_PC10,
+		.direction = GPIO_DIR_INPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+	{ },
+};
 
-static int spi_sregout_write(struct spi_device *spi, const u8 value)
+static struct gpio_pin gpio_pins_mtcdp_1_0[] = {
+	{
+		.name = "ENIO",
+		.pin = AT91_PIN_PC15,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "ETH0_ENABLED",
+		.pin = AT91_PIN_PB31,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "RADIO_RESET",
+		.pin = AT91_PIN_PB30,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "DEVICE_RESET",
+		.pin = AT91_PIN_PA22,
+		.direction = GPIO_DIR_INPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+#if LED_LS_CONTROLLABLE
+	{
+		.name = "LS_LED",
+		.pin = AT91_PIN_PC9,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+#endif
+#if LED_STATUS_CONTROLLABLE
+	{
+		.name = "STATUS_LED",
+		.pin = AT91_PIN_PA30,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+#endif
+	{
+		.name = "RSERSRC",
+		.pin = AT91_PIN_PC7,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 1,
+		.use_pullup = 0,
+	},
+	{
+		.name = "TXD1",
+		.pin = AT91_PIN_PB17,
+		.direction = GPIO_DIR_OUTPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+	{
+		.name = "DTR1",
+		.pin = AT91_PIN_PB18,
+		.direction = GPIO_DIR_INPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+	{
+		.name = "DC_NINT1",
+		.pin = AT91_PIN_PB8,
+		.direction = GPIO_DIR_INPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+	{
+		.name = "DC_NINT2",
+		.pin = AT91_PIN_PB9,
+		.direction = GPIO_DIR_INPUT,
+		.output_value = 0,
+		.use_pullup = 0,
+	},
+	{ },
+};
+
+struct gpio_pin *gpio_pin_by_name(const char *name) {
+	struct gpio_pin *pin;
+
+	for (pin = gpio_pins; *pin->name; pin++) {
+		if (!strcmp(pin->name, name)) {
+			return pin;
+		}
+	}
+
+	log_error("pin named %s not found", name);
+
+	return NULL;
+}
+
+static uint8_t __capa_mask[] = {
+	0x01,
+	0x02,
+	0x04,
+	0x08,
+	0x10,
+	0x20,
+	0x40,
+	0x80
+};
+
+#define DEVICE_CAPA_INDEX(c)			((c) >> 3)
+#define DEVICE_CAPA_MASK(c)			__capa_mask[(c) & 0x07]
+
+#define DEVICE_CAPA(capa_buf, c)		((capa_buf)[DEVICE_CAPA_INDEX(c)] & DEVICE_CAPA_MASK(c))
+#define DEVICE_CAPA_SET(capa_buf, c) \
+do { \
+	(capa_buf)[DEVICE_CAPA_INDEX(c)] |= DEVICE_CAPA_MASK(c); \
+}while (0)
+#define DEVICE_CAPA_CLEAR(capa_buf, c) \
+do { \
+	(capa_buf)[DEVICE_CAPA_INDEX(c)] &= ~DEVICE_CAPA_MASK(c); \
+} while (0)
+
+struct mts_id_eeprom_overlay {
+	char vendor_id[32];
+	char product_id[32];
+	char device_id[32];
+	char hw_version[32];
+	uint8_t capa[32];
+	uint8_t reserved[352];
+};
+
+extern uint8_t mts_id_eeprom[512];
+struct mts_id_eeprom_overlay *id_eeprom =
+  (struct mts_id_eeprom_overlay *) mts_id_eeprom;
+
+#define HWV_MTCDP_0_0			"MTCDP-0.0"
+#define HWV_MTCDP_1_0			"MTCDP-1.0"
+
+static int mts_id_eeprom_load(void)
 {
-	return spi_write(spi, &value, 1);
+	if (id_eeprom->vendor_id[0] == 0xFF) {
+		log_error("uninitialized eeprom");
+		return -EIO;
+	} else if (id_eeprom->vendor_id[0] == 0x00) {
+		log_debug("MTCDP-0.0 hardware found");
+		strcpy(id_eeprom->hw_version, HWV_MTCDP_0_0);
+		gpio_pins = gpio_pins_mtcdp_0_0;
+	} else {
+		gpio_pins = gpio_pins_mtcdp_1_0;
+	}
+
+	log_info("vendor_id: %.32s", id_eeprom->vendor_id);
+	log_info("product_id: %.32s",  id_eeprom->product_id);
+	log_info("device_id: %.32s",  id_eeprom->device_id);
+	log_info("hw_version: %.32s",  id_eeprom->hw_version);
+	log_info("capa: %02X",  id_eeprom->capa[0]);
+
+	return 0;
 }
 
-static int spi_temp_read(struct spi_device *spi, u16 *value)
+static struct spi_device *spi_sout_dev;
+static u8 spi_sout_value;
+static DEFINE_MUTEX(spi_sout_mutex);
+
+static struct spi_device *spi_dout_dev;
+static u8 spi_dout_value;
+static DEFINE_MUTEX(spi_dout_mutex);
+
+static struct spi_device *spi_din_dev;
+
+static struct spi_device *spi_board_temp_dev;
+
+static inline int spi_writen(struct spi_device *spi, const u8 *buf, size_t len)
 {
 	int tmp;
-	u8 buf[2] = {0, 0};
+	u8 *tx;
+
+	tx = kmalloc(len, GFP_KERNEL);
+	if (!tx) {
+		return -ENOMEM;
+	}
+
+	memcpy(tx, buf, len);
+	tmp = spi_write(spi, tx, len);
 
-	tmp = spi_read(spi, buf, 2);
-	*value = buf[0] << 8 | buf[1];
+	kfree(tx);
 
 	return tmp;
 }
 
+static inline int spi_readn(struct spi_device *spi, u8 *buf, size_t len)
+{
+	int tmp;
+	u8 *rx;
+
+	rx = kmalloc(len, GFP_KERNEL);
+	if (!rx) {
+		return -ENOMEM;
+	}
+
+	tmp = spi_read(spi, rx, len);
+	memcpy(buf, rx, len);
+
+	kfree(rx);
+
+	return tmp;
+}
+
+#define ADC_SHTIME_DEFAULT			0x05
+#define ADC_STARTUP_DEFAULT			0x04
+#define ADC_PRESCALE_DEFAULT			0x3F
+#define ADC_MODE_DEFAULT \
+	((ADC_SHTIME_DEFAULT & 0x0F) << 24) | \
+	((ADC_STARTUP_DEFAULT & 0x1F) << 16) | \
+	((ADC_PRESCALE_DEFAULT & 0x3F) << 8)
+
+#define ADC_CR_OFFSET			0x00
+#define ADC_MR_OFFSET			0x04
+#define ADC_CHER_OFFSET			0x10
+#define ADC_CHDR_OFFSET			0x14
+#define ADC_CHSR_OFFSET			0x18
+#define ADC_SR_OFFSET			0x1C
+#define ADC_LDCR_OFFSET			0x20
+#define ADC_IER_OFFSET			0x14
+#define ADC_IDR_OFFSET			0x28
+#define ADC_IMR_OFFSET			0x2C
+#define ADC_CDR0_OFFSET			0x30
+#define ADC_CDR1_OFFSET			0x34
+#define ADC_CDR2_OFFSET			0x38
+#define ADC_CDR3_OFFSET			0x3C
+
+void __iomem *adc_base;
+struct clk *adc_clk;
+
+#define ADC_CONVERT_RESET(base)			writel(0x01, base + ADC_CR_OFFSET)
+#define ADC_CONVERT_START(base)			writel(0x02, base + ADC_CR_OFFSET)
+
 #define BLINK_PER_SEC		8
 #define BLINK_INTERVAL		(HZ / BLINK_PER_SEC)
 #define RESET_HOLD_COUNT	(BLINK_PER_SEC * 3)
@@ -142,11 +422,15 @@ static DECLARE_DELAYED_WORK(blink_work, blink_callback);
 
 static void blink_callback(struct work_struct *ignored)
 {
-	unsigned long reset_pressed = !at91_get_gpio_value(GPIO_OPTRST);
+	struct gpio_pin *pin;
+	int reset_pressed;
 	struct pid *vpid = NULL;
 
 	mutex_lock(&mts_io_mutex);
 
+	pin = gpio_pin_by_name("DEVICE_RESET");
+	reset_pressed = !at91_get_gpio_value(pin->pin);
+
 	if (reset_pid > 0) {
 		vpid = find_vpid(reset_pid);
 	}
@@ -169,7 +453,8 @@ static void blink_callback(struct work_struct *ignored)
 
 #if LED_STATUS_CONTROLLABLE
 	if (led_mode_status == LED_FLASHING) {
-		at91_set_gpio_value(GPIO_STATUS_LED, !at91_get_gpio_value(GPIO_STATUS_LED));
+		pin = gpio_pin_by_name("STATUS_LED");
+		at91_set_gpio_value(pin->pin, !at91_get_gpio_value(pin->pin));
 	}
 #endif
 
@@ -181,15 +466,16 @@ static void blink_callback(struct work_struct *ignored)
 static int radio_reset(void)
 {
 	int ret;
+	struct gpio_pin *pin = gpio_pin_by_name("RADIO_RESET");
 
-	ret = at91_set_gpio_value(GPIO_RADIO_RESET, 0);
+	ret = at91_set_gpio_value(pin->pin, 0);
 	if (ret) {
 		return ret;
 	}
 
 	mdelay(250);
 
-	ret = at91_set_gpio_value(GPIO_RADIO_RESET, 1);
+	ret = at91_set_gpio_value(pin->pin, 1);
 
 	return ret;
 }
@@ -205,15 +491,34 @@ static int ADT7302_to_celsius(int value)
 	return value;
 }
 
-static ssize_t show_radio_reset(struct device *dev,
+
+#define MTS_ATTR_MODE_RW		S_IWUSR | S_IRUGO
+#define MTS_ATTR_MODE_RO		S_IRUGO
+
+#define MTS_ATTR_NAME(name)		mts_attr_##name
+#define MTS_ATTR_SHOW(name)		mts_attr_show_##name
+#define MTS_ATTR_STORE(name)		mts_attr_store_##name
+
+#define MTS_ATTR(name, attr_name, attr_mode, show, store) \
+static struct device_attribute MTS_ATTR_NAME(name) = \
+	.attr = { \
+		.name = attr_name, \
+		.mode = attr_mode, \
+	}, \
+	.show = show, \
+	.store = store, \
+}
+
+static ssize_t mts_attr_show_radio_reset(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("RADIO_RESET");
 
 	mutex_lock(&mts_io_mutex);
 
-	value = at91_get_gpio_value(GPIO_RADIO_RESET);
+	value = at91_get_gpio_value(pin->pin);
 
 	mutex_unlock(&mts_io_mutex);
 
@@ -224,8 +529,8 @@ static ssize_t show_radio_reset(struct device *dev,
 	return sprintf(buf, "%d\n", value);
 }
 
-static ssize_t store_radio_reset(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_store_radio_reset(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int value;
 	int err;
@@ -253,21 +558,22 @@ static ssize_t store_radio_reset(struct device *dev, struct device_attribute *at
 static struct device_attribute dev_attr_radio_reset = {
 	.attr = {
 		.name = "radio-reset",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_radio_reset,
-	.store = store_radio_reset,
+	.show = mts_attr_show_radio_reset,
+	.store = mts_attr_store_radio_reset,
 };
 
-static ssize_t show_eth0_enabled(struct device *dev,
+static ssize_t mts_attr_show_eth0_enabled(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("ETH0_ENABLED");
 
 	mutex_lock(&mts_io_mutex);
 
-	value = at91_get_gpio_value(GPIO_ETH0_ENABLED);
+	value = at91_get_gpio_value(pin->pin);
 
 	mutex_unlock(&mts_io_mutex);
 
@@ -278,11 +584,12 @@ static ssize_t show_eth0_enabled(struct device *dev,
 	return sprintf(buf, "%d\n", value);
 }
 
-static ssize_t store_eth0_enabled(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_store_eth0_enabled(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int value;
 	int err;
+	struct gpio_pin *pin = gpio_pin_by_name("ETH0_ENABLED");
 
 	if (sscanf(buf, "%i", &value) != 1) {
 		return -EINVAL;
@@ -290,7 +597,7 @@ static ssize_t store_eth0_enabled(struct device *dev, struct device_attribute *a
 
 	mutex_lock(&mts_io_mutex);
 
-	err = at91_set_gpio_value(GPIO_ETH0_ENABLED, value);
+	err = at91_set_gpio_value(pin->pin, value);
 
 	mutex_unlock(&mts_io_mutex);
 
@@ -304,487 +611,540 @@ static ssize_t store_eth0_enabled(struct device *dev, struct device_attribute *a
 static struct device_attribute dev_attr_eth0_enabled = {
 	.attr = {
 		.name = "eth0-enabled",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_eth0_enabled,
-	.store = store_eth0_enabled,
+	.show = mts_attr_show_eth0_enabled,
+	.store = mts_attr_store_eth0_enabled,
 };
 
-static ssize_t show_extserial_dcd(struct device *dev,
-			struct device_attribute *attr,
-			char *buf)
+
+static ssize_t mts_attr_store_sout(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int value;
+	u8 bit;
 
-	if (!spi_sregout) {
-		error("device not present");
+	if (!spi_sout_dev) {
+		log_notice("sout device not present");
 		return -ENODEV;
 	}
 
-	mutex_lock(&spi_sregout_mutex);
-
-	value = spi_sregout_byte & EXTSERIAL_DCD_BIT ? 0 : 1;
-
-	mutex_unlock(&spi_sregout_mutex);
-
-	return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t store_extserial_dcd(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	int value;
-
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
+	if (!strcmp(attr->attr.name, "extserial-ri")) {
+		bit = SOUT_EXTSERIAL_RI_BIT;
+	} else if (!strcmp(attr->attr.name, "extserial-dsr")) {
+		bit = SOUT_EXTSERIAL_DSR_BIT;
+	} else if (!strcmp(attr->attr.name, "extserial-dcd")) {
+		bit = SOUT_EXTSERIAL_DCD_BIT;
+	} else if (!strcmp(attr->attr.name, "led-cd") || !strcmp(attr->attr.name, "led-sdk-b")) {
+		bit = SOUT_LED_CD_BIT;
+	} else if (!strcmp(attr->attr.name, "led-dtr") || !strcmp(attr->attr.name, "led-sdk-f")) {
+		bit = SOUT_LED_DTR;
+	} else if (!strcmp(attr->attr.name, "led-sig1") || !strcmp(attr->attr.name, "led-sdk-c")) {
+		bit = SOUT_LED_SIG1_BIT;
+	} else if (!strcmp(attr->attr.name, "led-sig2") || !strcmp(attr->attr.name, "led-sdk-d")) {
+		bit = SOUT_LED_SIG2_BIT;
+	} else if (!strcmp(attr->attr.name, "led-sig3") || !strcmp(attr->attr.name, "led-sdk-e")) {
+		bit = SOUT_LED_SIG3_BIT;
+	} else {
+		log_notice("sout attr does not exists");
+		return -ENOENT;
 	}
 
 	if (sscanf(buf, "%i", &value) != 1) {
+		log_notice("sout attr invalid argument");
 		return -EINVAL;
 	}
 
-	mutex_lock(&spi_sregout_mutex);
+	mutex_lock(&spi_sout_mutex);
 
 	if (value) {
-		spi_sregout_byte &= ~EXTSERIAL_DCD_BIT;
+		spi_sout_value &= ~bit;
 	} else {
-		spi_sregout_byte |= EXTSERIAL_DCD_BIT;
+		spi_sout_value |= bit;
 	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
+	spi_writen(spi_sout_dev, &spi_sout_value, 1);
 
-	mutex_unlock(&spi_sregout_mutex);
+	mutex_unlock(&spi_sout_mutex);
 
 	return count;
 }
 
-static struct device_attribute dev_attr_extserial_dcd = {
-	.attr = {
-		.name = "extserial-dcd",
-		.mode = 0644,
-	},
-	.show = show_extserial_dcd,
-	.store = store_extserial_dcd,
-};
-
-static ssize_t show_extserial_ri(struct device *dev,
+static ssize_t mts_attr_show_sout(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int value;
+	u8 bit;
 
-	if (!spi_sregout) {
-		error("device not present");
+	if (!spi_sout_dev) {
+		log_error("sout device not present");
 		return -ENODEV;
 	}
 
-	mutex_lock(&spi_sregout_mutex);
-
-	value = spi_sregout_byte & EXTSERIAL_RI_BIT ? 0 : 1;
-
-	mutex_unlock(&spi_sregout_mutex);
-
-	return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t store_extserial_ri(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	int value;
-
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
+	if (!strcmp(attr->attr.name, "extserial-ri")) {
+		bit = SOUT_EXTSERIAL_RI_BIT;
+	} else if (!strcmp(attr->attr.name, "extserial-dsr")) {
+		bit = SOUT_EXTSERIAL_DSR_BIT;
+	} else if (!strcmp(attr->attr.name, "extserial-dcd")) {
+		bit = SOUT_EXTSERIAL_DCD_BIT;
+	} else if (!strcmp(attr->attr.name, "led-cd") || !strcmp(attr->attr.name, "led-sdk-b")) {
+		bit = SOUT_LED_CD_BIT;
+	} else if (!strcmp(attr->attr.name, "led-dtr") || !strcmp(attr->attr.name, "led-sdk-f")) {
+		bit = SOUT_LED_DTR;
+	} else if (!strcmp(attr->attr.name, "led-sig1") || !strcmp(attr->attr.name, "led-sdk-c")) {
+		bit = SOUT_LED_SIG1_BIT;
+	} else if (!strcmp(attr->attr.name, "led-sig2") || !strcmp(attr->attr.name, "led-sdk-d")) {
+		bit = SOUT_LED_SIG2_BIT;
+	} else if (!strcmp(attr->attr.name, "led-sig3") || !strcmp(attr->attr.name, "led-sdk-e")) {
+		bit = SOUT_LED_SIG3_BIT;
+	} else {
+		log_notice("sout attr does not exists");
+		return -ENOENT;
 	}
 
-	if (sscanf(buf, "%i", &value) != 1) {
-		return -EINVAL;
-	}
+	mutex_lock(&spi_sout_mutex);
 
-	mutex_lock(&spi_sregout_mutex);
+	value = spi_sout_value & bit ? 0 : 1;
 
-	if (value) {
-		spi_sregout_byte &= ~EXTSERIAL_RI_BIT;
-	} else {
-		spi_sregout_byte |= EXTSERIAL_RI_BIT;
-	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
-
-	mutex_unlock(&spi_sregout_mutex);
+	mutex_unlock(&spi_sout_mutex);
 
-	return count;
+	return sprintf(buf, "%d\n", value);
 }
 
+static struct device_attribute dev_attr_extserial_dcd = {
+	.attr = {
+		.name = "extserial-dcd",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
+
 static struct device_attribute dev_attr_extserial_ri = {
 	.attr = {
 		.name = "extserial-ri",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_extserial_ri,
-	.store = store_extserial_ri,
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
 };
 
-static ssize_t show_extserial_dsr(struct device *dev,
-			struct device_attribute *attr,
-			char *buf)
-{
-	int value;
-
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
-
-	mutex_lock(&spi_sregout_mutex);
-
-	value = spi_sregout_byte & EXTSERIAL_DSR_BIT ? 0 : 1;
-
-	mutex_unlock(&spi_sregout_mutex);
-
-	return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t store_extserial_dsr(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	int value;
-
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
-
-	if (sscanf(buf, "%i", &value) != 1) {
-		return -EINVAL;
-	}
-
-	mutex_lock(&spi_sregout_mutex);
-
-	if (value) {
-		spi_sregout_byte &= ~EXTSERIAL_DSR_BIT;
-	} else {
-		spi_sregout_byte |= EXTSERIAL_DSR_BIT;
-	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
-
-	mutex_unlock(&spi_sregout_mutex);
-
-	return count;
-}
-
 static struct device_attribute dev_attr_extserial_dsr = {
 	.attr = {
 		.name = "extserial-dsr",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_extserial_dsr,
-	.store = store_extserial_dsr,
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
 };
 
-static ssize_t show_extserial_dtr(struct device *dev,
-			struct device_attribute *attr,
-			char *buf)
-{
-	int value;
-
-	mutex_lock(&mts_io_mutex);
-
-	value = !at91_get_gpio_value(GPIO_DTR1);
-
-	mutex_unlock(&mts_io_mutex);
+static struct device_attribute dev_attr_led_cd = {
+	.attr = {
+		.name = "led-cd",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	if (value < 0) {
-		return value;
-	}
+static struct device_attribute dev_attr_led_sdk_b = {
+	.attr = {
+		.name = "led-sdk-b",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	return sprintf(buf, "%d\n", value);
-}
+static struct device_attribute dev_attr_led_sig1 = {
+	.attr = {
+		.name = "led-sig1",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-static struct device_attribute dev_attr_extserial_dtr = {
+static struct device_attribute dev_attr_led_sdk_c = {
 	.attr = {
-		.name = "extserial-dtr",
-		.mode = 0444,
+		.name = "led-sdk-c",
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_extserial_dtr,
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
 };
 
-static ssize_t show_led_sig1(struct device *dev,
-			struct device_attribute *attr,
-			char *buf)
-{
-	int value;
+static struct device_attribute dev_attr_led_sig2 = {
+	.attr = {
+		.name = "led-sig2",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
+static struct device_attribute dev_attr_led_sdk_d = {
+	.attr = {
+		.name = "led-sdk-d",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	mutex_lock(&spi_sregout_mutex);
+static struct device_attribute dev_attr_led_sig3 = {
+	.attr = {
+		.name = "led-sig3",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	value = spi_sregout_byte & LED_SIG1_BIT ? 0 : 1;
+static struct device_attribute dev_attr_led_sdk_e = {
+	.attr = {
+		.name = "led-sdk-e",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	mutex_unlock(&spi_sregout_mutex);
+static struct device_attribute dev_attr_led_dtr = {
+	.attr = {
+		.name = "led-dtr",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-	return sprintf(buf, "%d\n", value);
-}
+static struct device_attribute dev_attr_led_sdk_f = {
+	.attr = {
+		.name = "led-sdk-f",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_sout,
+	.store = mts_attr_store_sout,
+};
 
-static ssize_t store_led_sig1(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_store_dout(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int value;
+	u8 bit;
 
-	if (!spi_sregout) {
-		error("device not present");
+	if (!spi_dout_dev) {
+		log_notice("dout device not present");
 		return -ENODEV;
 	}
 
+	if (!strcmp(attr->attr.name, "dout0")) {
+		bit = BIT(0);
+	} else if (!strcmp(attr->attr.name, "dout1")) {
+		bit = BIT(1);
+	} else if (!strcmp(attr->attr.name, "dout2")) {
+		bit = BIT(2);
+	} else if (!strcmp(attr->attr.name, "dout3")) {
+		bit = BIT(3);
+	} else if (!strcmp(attr->attr.name, "dout4")) {
+		bit = BIT(4);
+	} else if (!strcmp(attr->attr.name, "dout5")) {
+		bit = BIT(5);
+	} else if (!strcmp(attr->attr.name, "dout6")) {
+		bit = BIT(6);
+	} else if (!strcmp(attr->attr.name, "dout7")) {
+		bit = BIT(7);
+	} else {
+		log_notice("dout attr does not exists");
+		return -ENOENT;
+	}
+
 	if (sscanf(buf, "%i", &value) != 1) {
+		log_notice("dout attr invalid argument");
 		return -EINVAL;
 	}
 
-	mutex_lock(&spi_sregout_mutex);
+	mutex_lock(&spi_dout_mutex);
 
 	if (value) {
-		spi_sregout_byte &= ~LED_SIG1_BIT;
+		spi_dout_value |= bit;
 	} else {
-		spi_sregout_byte |= LED_SIG1_BIT;
+		spi_dout_value &= ~bit;
 	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
+	spi_writen(spi_dout_dev, &spi_dout_value, 1);
 
-	mutex_unlock(&spi_sregout_mutex);
+	mutex_unlock(&spi_dout_mutex);
 
 	return count;
 }
 
-static struct device_attribute dev_attr_led_sig1 = {
-	.attr = {
-		.name = "led-sig1",
-		.mode = 0644,
-	},
-	.show = show_led_sig1,
-	.store = store_led_sig1,
-};
-
-static struct device_attribute dev_attr_led_sdk_c = {
-	.attr = {
-		.name = "led-sdk-c",
-		.mode = 0644,
-	},
-	.show = show_led_sig1,
-	.store = store_led_sig1,
-};
-
-static ssize_t show_led_sig2(struct device *dev,
+static ssize_t mts_attr_show_dout(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int value;
+	u8 bit;
 
-	if (!spi_sregout) {
-		error("device not present");
+	if (!spi_dout_dev) {
+		log_error("dout device not present");
 		return -ENODEV;
 	}
 
-	mutex_lock(&spi_sregout_mutex);
+	if (!strcmp(attr->attr.name, "dout0")) {
+		bit = BIT(0);
+	} else if (!strcmp(attr->attr.name, "dout1")) {
+		bit = BIT(1);
+	} else if (!strcmp(attr->attr.name, "dout2")) {
+		bit = BIT(2);
+	} else if (!strcmp(attr->attr.name, "dout3")) {
+		bit = BIT(3);
+	} else if (!strcmp(attr->attr.name, "dout4")) {
+		bit = BIT(4);
+	} else if (!strcmp(attr->attr.name, "dout5")) {
+		bit = BIT(5);
+	} else if (!strcmp(attr->attr.name, "dout6")) {
+		bit = BIT(6);
+	} else if (!strcmp(attr->attr.name, "dout7")) {
+		bit = BIT(7);
+	} else {
+		log_notice("dout attr does not exists");
+		return -ENOENT;
+	}
 
-	value = spi_sregout_byte & LED_SIG2_BIT ? 0 : 1;
+	mutex_lock(&spi_dout_mutex);
 
-	mutex_unlock(&spi_sregout_mutex);
+	value = spi_dout_value & bit ? 1 : 0;
+
+	mutex_unlock(&spi_dout_mutex);
 
 	return sprintf(buf, "%d\n", value);
 }
 
-static ssize_t store_led_sig2(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	int value;
-
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
+static struct device_attribute dev_attr_dout0 = {
+	.attr = {
+		.name = "dout0",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
+};
 
-	if (sscanf(buf, "%i", &value) != 1) {
-		return -EINVAL;
-	}
+static struct device_attribute dev_attr_dout1 = {
+	.attr = {
+		.name = "dout1",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
+};
 
-	mutex_lock(&spi_sregout_mutex);
+static struct device_attribute dev_attr_dout2 = {
+	.attr = {
+		.name = "dout2",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
+};
 
-	if (value) {
-		spi_sregout_byte &= ~LED_SIG2_BIT;
-	} else {
-		spi_sregout_byte |= LED_SIG2_BIT;
-	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
+static struct device_attribute dev_attr_dout3 = {
+	.attr = {
+		.name = "dout3",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
+};
 
-	mutex_unlock(&spi_sregout_mutex);
+static struct device_attribute dev_attr_dout4 = {
+	.attr = {
+		.name = "dout4",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
+};
 
-	return count;
-}
+static struct device_attribute dev_attr_dout5 = {
+	.attr = {
+		.name = "dout5",
+		.mode = MTS_ATTR_MODE_RW,
+	},
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
+};
 
-static struct device_attribute dev_attr_led_sig2 = {
+static struct device_attribute dev_attr_dout6 = {
 	.attr = {
-		.name = "led-sig2",
-		.mode = 0644,
+		.name = "dout6",
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_led_sig2,
-	.store = store_led_sig2,
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
 };
 
-static struct device_attribute dev_attr_led_sdk_d = {
+static struct device_attribute dev_attr_dout7 = {
 	.attr = {
-		.name = "led-sdk-d",
-		.mode = 0644,
+		.name = "dout7",
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_led_sig2,
-	.store = store_led_sig2,
+	.show = mts_attr_show_dout,
+	.store = mts_attr_store_dout,
 };
 
-static ssize_t show_led_sig3(struct device *dev,
+static ssize_t mts_attr_show_din(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
-	int value;
-
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
-
-	mutex_lock(&spi_sregout_mutex);
-
-	value = spi_sregout_byte & LED_SIG3_BIT ? 0 : 1;
-
-	mutex_unlock(&spi_sregout_mutex);
-
-	return sprintf(buf, "%d\n", value);
-}
-
-static ssize_t store_led_sig3(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
-{
-	int value;
+	int tmp;
+	u8 bit;
+	u8 byte;
 
-	if (!spi_sregout) {
-		error("device not present");
+	if (!spi_din_dev) {
+		log_error("din device not present");
 		return -ENODEV;
 	}
 
-	if (sscanf(buf, "%i", &value) != 1) {
-		return -EINVAL;
+	if (!strcmp(attr->attr.name, "din0")) {
+		bit = BIT(0);
+	} else if (!strcmp(attr->attr.name, "din1")) {
+		bit = BIT(1);
+	} else if (!strcmp(attr->attr.name, "din2")) {
+		bit = BIT(2);
+	} else if (!strcmp(attr->attr.name, "din3")) {
+		bit = BIT(3);
+	} else if (!strcmp(attr->attr.name, "din4")) {
+		bit = BIT(4);
+	} else if (!strcmp(attr->attr.name, "din5")) {
+		bit = BIT(5);
+	} else if (!strcmp(attr->attr.name, "din6")) {
+		bit = BIT(6);
+	} else if (!strcmp(attr->attr.name, "din7")) {
+		bit = BIT(7);
+	} else {
+		log_notice("din attr does not exists");
+		return -ENOENT;
 	}
 
-	mutex_lock(&spi_sregout_mutex);
-
-	if (value) {
-		spi_sregout_byte &= ~LED_SIG3_BIT;
-	} else {
-		spi_sregout_byte |= LED_SIG3_BIT;
+	tmp = spi_readn(spi_din_dev, &byte, 1);
+	if (tmp) {
+		log_error("spi_read failed %d", tmp);
+		return tmp;
 	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
 
-	mutex_unlock(&spi_sregout_mutex);
+	tmp = byte & bit ? 1 : 0;
 
-	return count;
+	return sprintf(buf, "%d\n", tmp);
 }
 
-static struct device_attribute dev_attr_led_sig3 = {
+static struct device_attribute dev_attr_din0 = {
 	.attr = {
-		.name = "led-sig3",
-		.mode = 0644,
+		.name = "din0",
+		.mode = MTS_ATTR_MODE_RO,
 	},
-	.show = show_led_sig3,
-	.store = store_led_sig3,
+	.show = mts_attr_show_din,
 };
 
-static struct device_attribute dev_attr_led_sdk_e = {
+static struct device_attribute dev_attr_din1 = {
 	.attr = {
-		.name = "led-sdk-e",
-		.mode = 0644,
+		.name = "din1",
+		.mode = MTS_ATTR_MODE_RO,
 	},
-	.show = show_led_sig3,
-	.store = store_led_sig3,
+	.show = mts_attr_show_din,
 };
 
-static ssize_t show_led_cd(struct device *dev,
-			struct device_attribute *attr,
-			char *buf)
-{
-	int value;
+static struct device_attribute dev_attr_din2 = {
+	.attr = {
+		.name = "din2",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_din,
+};
 
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
+static struct device_attribute dev_attr_din3 = {
+	.attr = {
+		.name = "din3",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_din,
+};
 
-	mutex_lock(&spi_sregout_mutex);
+static struct device_attribute dev_attr_din4 = {
+	.attr = {
+		.name = "din4",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_din,
+};
 
-	value = spi_sregout_byte & LED_CD_BIT ? 0 : 1;
+static struct device_attribute dev_attr_din5 = {
+	.attr = {
+		.name = "din5",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_din,
+};
 
-	mutex_unlock(&spi_sregout_mutex);
+static struct device_attribute dev_attr_din6 = {
+	.attr = {
+		.name = "din6",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_din,
+};
+
+static struct device_attribute dev_attr_din7 = {
+	.attr = {
+		.name = "din7",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_din,
+};
 
-	return sprintf(buf, "%d\n", value);
-}
 
-static ssize_t store_led_cd(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_show_extserial_dtr(struct device *dev,
+			struct device_attribute *attr,
+			char *buf)
 {
 	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("DTR1");
 
-	if (!spi_sregout) {
-		error("device not present");
-		return -ENODEV;
-	}
+	mutex_lock(&mts_io_mutex);
 
-	if (sscanf(buf, "%i", &value) != 1) {
-		return -EINVAL;
-	}
+	value = !at91_get_gpio_value(pin->pin);
 
-	mutex_lock(&spi_sregout_mutex);
+	mutex_unlock(&mts_io_mutex);
 
-	if (value) {
-		spi_sregout_byte &= ~LED_CD_BIT;
-	} else {
-		spi_sregout_byte |= LED_CD_BIT;
+	if (value < 0) {
+		return value;
 	}
-	spi_sregout_write(spi_sregout, spi_sregout_byte);
-
-	mutex_unlock(&spi_sregout_mutex);
 
-	return count;
+	return sprintf(buf, "%d\n", value);
 }
 
-static struct device_attribute dev_attr_led_cd = {
-	.attr = {
-		.name = "led-cd",
-		.mode = 0644,
-	},
-	.show = show_led_cd,
-	.store = store_led_cd,
-};
-
-static struct device_attribute dev_attr_led_sdk_b = {
+static struct device_attribute dev_attr_extserial_dtr = {
 	.attr = {
-		.name = "led-sdk-b",
-		.mode = 0644,
+		.name = "extserial-dtr",
+		.mode = MTS_ATTR_MODE_RO,
 	},
-	.show = show_led_cd,
-	.store = store_led_cd,
+	.show = mts_attr_show_extserial_dtr,
 };
 
 #if LED_STATUS_CONTROLLABLE
-static ssize_t show_led_status(struct device *dev,
+static ssize_t mts_attr_show_led_status(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	return sprintf(buf, "%d\n", led_mode_status);
 }
 
-static ssize_t store_led_status(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_store_led_status(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int value;
 	int ret;
+	struct gpio_pin *pin = gpio_pin_by_name("STATUS_LED");
 
 	if (sscanf(buf, "%i", &value) != 1) {
 		return -EINVAL;
@@ -795,19 +1155,19 @@ static ssize_t store_led_status(struct device *dev, struct device_attribute *att
 	switch (value) {
 	case LED_OFF:
 		led_mode_status = LED_OFF;
-		ret = at91_set_gpio_value(GPIO_STATUS_LED, 1);
+		ret = at91_set_gpio_value(pin->pin, 1);
 
 		break;
 
 	case LED_ON:
 		led_mode_status = LED_ON;
-		ret = at91_set_gpio_value(GPIO_STATUS_LED, 0);
+		ret = at91_set_gpio_value(pin->pin, 0);
 
 		break;
 
 	case LED_FLASHING:
 		led_mode_status = LED_FLASHING;
-		ret = at91_set_gpio_value(GPIO_STATUS_LED, 0);
+		ret = at91_set_gpio_value(pin->pin, 0);
 
 		break;
 
@@ -823,32 +1183,33 @@ static ssize_t store_led_status(struct device *dev, struct device_attribute *att
 static struct device_attribute dev_attr_led_status = {
 	.attr = {
 		.name = "led-status",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_led_status,
-	.store = store_led_status,
+	.show = mts_attr_show_led_status,
+	.store = mts_attr_store_led_status,
 };
 
 static struct device_attribute dev_attr_led_sdk_a = {
 	.attr = {
 		.name = "led-sdk-a",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_led_status,
-	.store = store_led_status,
+	.show = mts_attr_show_led_status,
+	.store = mts_attr_store_led_status,
 };
 #endif
 
 #if LED_LS_CONTROLLABLE
-static ssize_t show_led_ls(struct device *dev,
+static ssize_t mts_attr_show_led_ls(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("LS_LED");
 
 	mutex_lock(&mts_io_mutex);
 
-	value = at91_get_gpio_value(GPIO_LS_LED);
+	value = at91_get_gpio_value(pin->pin);
 
 	mutex_unlock(&mts_io_mutex);
 
@@ -859,11 +1220,12 @@ static ssize_t show_led_ls(struct device *dev,
 	return sprintf(buf, "%d\n", !value);
 }
 
-static ssize_t store_led_ls(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_store_led_ls(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int value;
 	int err;
+	struct gpio_pin *pin = gpio_pin_by_name("LS_LED");
 
 	if (sscanf(buf, "%i", &value) != 1) {
 		return -EINVAL;
@@ -871,7 +1233,7 @@ static ssize_t store_led_ls(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&mts_io_mutex);
 
-	err = at91_set_gpio_value(GPIO_LS_LED, !value);
+	err = at91_set_gpio_value(pin->pin, !value);
 
 	mutex_unlock(&mts_io_mutex);
 
@@ -885,22 +1247,23 @@ static ssize_t store_led_ls(struct device *dev, struct device_attribute *attr,
 static struct device_attribute dev_attr_led_ls = {
 	.attr = {
 		.name = "led-ls",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_led_ls,
-	.store = store_led_ls,
+	.show = mts_attr_show_led_ls,
+	.store = mts_attr_store_led_ls,
 };
 #endif
 
-static ssize_t show_reset(struct device *dev,
+static ssize_t mts_attr_show_reset(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int value;
+	struct gpio_pin *pin = gpio_pin_by_name("DEVICE_RESET");
 
 	mutex_lock(&mts_io_mutex);
 
-	value = !at91_get_gpio_value(GPIO_OPTRST);
+	value = !at91_get_gpio_value(pin->pin);
 
 	mutex_unlock(&mts_io_mutex);
 
@@ -914,12 +1277,12 @@ static ssize_t show_reset(struct device *dev,
 static struct device_attribute dev_attr_reset = {
 	.attr = {
 		.name = "reset",
-		.mode = 0444,
+		.mode = MTS_ATTR_MODE_RO,
 	},
-	.show = show_reset,
+	.show = mts_attr_show_reset,
 };
 
-static ssize_t show_reset_monitor(struct device *dev,
+static ssize_t mts_attr_show_reset_monitor(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
@@ -934,8 +1297,8 @@ static ssize_t show_reset_monitor(struct device *dev,
 	return ret;
 }
 
-static ssize_t store_reset_monitor(struct device *dev, struct device_attribute *attr,
-			 const char *buf, size_t count)
+static ssize_t mts_attr_store_reset_monitor(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
 {
 	pid_t pid;
 	int short_signal;
@@ -959,26 +1322,32 @@ static ssize_t store_reset_monitor(struct device *dev, struct device_attribute *
 static struct device_attribute dev_attr_reset_monitor = {
 	.attr = {
 		.name = "reset-monitor",
-		.mode = 0644,
+		.mode = MTS_ATTR_MODE_RW,
 	},
-	.show = show_reset_monitor,
-	.store = store_reset_monitor,
+	.show = mts_attr_show_reset_monitor,
+	.store = mts_attr_store_reset_monitor,
 };
 
-static ssize_t show_board_temperature(struct device *dev,
+static ssize_t mts_attr_show_board_temperature(struct device *dev,
 			struct device_attribute *attr,
 			char *buf)
 {
 	int tmp;
 	u16 temp_raw;
 
-	tmp = spi_temp_read(spi_temp, &temp_raw);
+	if (!spi_board_temp_dev) {
+		log_notice("spi_board_temp device not present");
+		return -ENODEV;
+	}
+
+	tmp = spi_readn(spi_board_temp_dev, (u8 *) buf, 2);
 	if (tmp) {
-		error("spi_read temp failed %d", tmp);
+		log_error("spi_readn failed %d", tmp);
 		return tmp;
 	}
+	temp_raw = ((u8 *) buf)[0] << 8 | ((u8 *) buf)[1];
 
-	dbg("temp: 0x%04X", temp_raw);
+	log_debug("temp: 0x%04X", temp_raw);
 
 	return sprintf(buf, "%d\n", ADT7302_to_celsius(temp_raw));
 }
@@ -986,36 +1355,131 @@ static ssize_t show_board_temperature(struct device *dev,
 static struct device_attribute dev_attr_board_temperature = {
 	.attr = {
 		.name = "board-temperature",
-		.mode = 0444,
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_board_temperature,
+};
+
+static ssize_t mts_attr_show_adc(struct device *dev,
+			struct device_attribute *attr,
+			char *buf)
+{
+	int offset;
+	u32 value;
+
+	if (!strcmp(id_eeprom->hw_version, HWV_MTCDP_0_0)) {
+		log_debug("ADC not available on 0.0 hw");
+		return -ENODEV;
+	}
+
+	if (!strcmp(attr->attr.name, "adc0")) {
+		offset = ADC_CDR0_OFFSET;
+	} else if (!strcmp(attr->attr.name, "adc1")) {
+		offset = ADC_CDR1_OFFSET;
+	} else if (!strcmp(attr->attr.name, "adc2")) {
+		offset = ADC_CDR2_OFFSET;
+	} else if (!strcmp(attr->attr.name, "adc3")) {
+		offset = ADC_CDR3_OFFSET;
+	} else {
+		log_notice("adc attr does not exists");
+		return -ENOENT;
+	}
+
+	ADC_CONVERT_START(adc_base);
+
+	value = 0;
+	while (value != 0x0F) {
+		value = readl(adc_base + ADC_SR_OFFSET) & 0x0F;
+	}
+
+	return sprintf(buf, "%lu\n", (unsigned long) readl(adc_base + offset));
+}
+
+static struct device_attribute dev_attr_adc0 = {
+	.attr = {
+		.name = "adc0",
+		.mode = MTS_ATTR_MODE_RO,
 	},
-	.show = show_board_temperature,
+	.show = mts_attr_show_adc,
+};
+
+static struct device_attribute dev_attr_adc1 = {
+	.attr = {
+		.name = "adc1",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_adc,
+};
+
+static struct device_attribute dev_attr_adc2 = {
+	.attr = {
+		.name = "adc2",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_adc,
+};
+
+static struct device_attribute dev_attr_adc3 = {
+	.attr = {
+		.name = "adc3",
+		.mode = MTS_ATTR_MODE_RO,
+	},
+	.show = mts_attr_show_adc,
 };
 
 static struct attribute *platform_attributes[] = {
+	&dev_attr_reset.attr,
+	&dev_attr_reset_monitor.attr,
 	&dev_attr_radio_reset.attr,
 	&dev_attr_eth0_enabled.attr,
+	&dev_attr_extserial_dtr.attr,
+#if LED_LS_CONTROLLABLE
+	&dev_attr_led_ls.attr,
+#endif
+#if LED_STATUS_CONTROLLABLE
+	&dev_attr_led_status.attr,
+	&dev_attr_led_sdk_a.attr,
+#endif
+
 	&dev_attr_extserial_dcd.attr,
 	&dev_attr_extserial_ri.attr,
 	&dev_attr_extserial_dsr.attr,
-	&dev_attr_extserial_dtr.attr,
+	&dev_attr_led_cd.attr,
+	&dev_attr_led_sdk_b.attr,
 	&dev_attr_led_sig1.attr,
 	&dev_attr_led_sdk_c.attr,
 	&dev_attr_led_sig2.attr,
 	&dev_attr_led_sdk_d.attr,
 	&dev_attr_led_sig3.attr,
 	&dev_attr_led_sdk_e.attr,
-	&dev_attr_led_cd.attr,
-	&dev_attr_led_sdk_b.attr,
-#if LED_STATUS_CONTROLLABLE
-	&dev_attr_led_status.attr,
-	&dev_attr_led_sdk_a.attr,
-#endif
-#if LED_LS_CONTROLLABLE
-	&dev_attr_led_ls.attr,
-#endif
-	&dev_attr_reset.attr,
-	&dev_attr_reset_monitor.attr,
+	&dev_attr_led_dtr.attr,
+	&dev_attr_led_sdk_f.attr,
+
+	&dev_attr_dout0.attr,
+	&dev_attr_dout1.attr,
+	&dev_attr_dout2.attr,
+	&dev_attr_dout3.attr,
+	&dev_attr_dout4.attr,
+	&dev_attr_dout5.attr,
+	&dev_attr_dout6.attr,
+	&dev_attr_dout7.attr,
+
+	&dev_attr_din0.attr,
+	&dev_attr_din1.attr,
+	&dev_attr_din2.attr,
+	&dev_attr_din3.attr,
+	&dev_attr_din4.attr,
+	&dev_attr_din5.attr,
+	&dev_attr_din6.attr,
+	&dev_attr_din7.attr,
+
 	&dev_attr_board_temperature.attr,
+
+	&dev_attr_adc0.attr,
+	&dev_attr_adc1.attr,
+	&dev_attr_adc2.attr,
+	&dev_attr_adc3.attr,
+
 	NULL,
 };
 
@@ -1025,218 +1489,128 @@ static struct attribute_group platform_attribute_group = {
 
 static struct platform_device *mts_io_platform_device;
 
-enum {
-	DIR_INPUT,
-	DIR_OUTPUT,
-};
+static int __devinit mts_spi_sout_probe(struct spi_device *spi)
+{
+	int tmp;
 
-struct gpio_pin_info {
-	char name[32];
-	unsigned long pin;
-	int direction;
-	int output_value;
-	int use_pullup;
-	int board_rev_added;
-};
+	spi->max_speed_hz = 1 * 1000 * 1000;
+	spi->mode = 0;
 
-static struct gpio_pin_info gpio_pins[] = {
-	/*
-	 * GPIO_{VER0,VER1} need to be first in the list.
-	 */
-	{
-		.name = "GPIO_VER0",
-		.pin = GPIO_VER0,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-	{
-		.name = "GPIO_VER1",
-		.pin = GPIO_VER1,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-	{
-		.name = "GPIO_ENIO",
-		.pin = GPIO_ENIO,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-	{
-		.name = "GPIO_ETH0_ENABLED",
-		.pin = AT91_PIN_PB31,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-	{
-		.name = "GPIO_RADIO_RESET",
-		.pin = GPIO_RADIO_RESET,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-	{
-		.name = "GPIO_OPTRST",
-		.pin = GPIO_OPTRST,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-#if LED_LS_CONTROLLABLE
-	{
-		.name = "GPIO_LS_LED",
-		.pin = GPIO_LS_LED,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-#endif
-#if LED_STATUS_CONTROLLABLE
-	{
-		.name = "GPIO_STATUS_LED",
-		.pin = GPIO_STATUS_LED,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVA,
-	},
-#endif
-	{
-		.name = "GPIO_RSERSRC",
-		.pin = GPIO_RSERSRC,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-	{
-		.name = "GPIO_DBSERON",
-		.pin = GPIO_DBSERON,
-		.direction = DIR_OUTPUT,
-		.output_value = 1,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-	{
-		.name = "GPIO_DTR1",
-		.pin = GPIO_DTR1,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-	{
-		.name = "GPIO_RXD1MON",
-		.pin = GPIO_RXD1MON,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-	{
-		.name = "GPIO_EXTIN0",
-		.pin = GPIO_EXTIN0,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-	{
-		.name = "GPIO_EXTIN1",
-		.pin = GPIO_EXTIN1,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-	{
-		.name = "GPIO_EXTIN2",
-		.pin = GPIO_EXTIN2,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVB,
-	},
-#if 0
-	{
-		.name = "GPIO_EXTIN3",
-		.pin = GPIO_EXTIN3,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVC,
-	},
-	{
-		.name = "GPIO_EXTIN4",
-		.pin = GPIO_EXTIN4,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVC,
-	},
-	{
-		.name = "GPIO_EXTIN5",
-		.pin = GPIO_EXTIN5,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVC,
-	},
-	{
-		.name = "GPIO_GPS_NINT2",
-		.pin = GPIO_GPS_NINT2,
-		.direction = DIR_INPUT,
-		.output_value = 0,
-		.use_pullup = 0,
-		.board_rev_added = BOARD_REVC,
+	tmp = spi_setup(spi);
+	if (tmp < 0) {
+		log_error("spi_setup sout failed");
+		return tmp;
+	}
+
+	spi_sout_value = 0xFF;
+	spi_writen(spi, &spi_sout_value, 1);
+
+	spi_sout_dev = spi;
+
+	return 0;
+}
+
+static int mts_spi_sout_remove(struct spi_device *spi)
+{
+	spi_sout_dev = NULL;
+
+	return 0;
+}
+
+static struct spi_driver mts_spi_sout_driver = {
+	.driver = {
+		.name = "mts-io-sout",
+		.bus = &spi_bus_type,
+		.owner = THIS_MODULE,
 	},
-#endif
+
+	.probe = mts_spi_sout_probe,
+	.remove = __devexit_p(mts_spi_sout_remove),
 };
 
-static int __devinit mts_spi_sregout_probe(struct spi_device *spi)
+static int __devinit mts_spi_dout_probe(struct spi_device *spi)
 {
 	int tmp;
 
+	if (!strcmp(id_eeprom->hw_version, HWV_MTCDP_0_0)) {
+		log_debug("digital outputs not available on 0.0 hw");
+		return -ENODEV;
+	}
+
 	spi->max_speed_hz = 1 * 1000 * 1000;
 	spi->mode = 0;
 
 	tmp = spi_setup(spi);
 	if (tmp < 0) {
+		log_error("spi_setup dout failed");
 		return tmp;
 	}
 
-	spi_sregout_byte = 0xFF;
-	spi_sregout_write(spi, spi_sregout_byte);
+	spi_dout_value = 0x00;
+	spi_writen(spi, &spi_dout_value, 1);
 
-	spi_sregout = spi;
+	spi_dout_dev = spi;
 
 	return 0;
 }
 
-static int mts_spi_sregout_remove(struct spi_device *spi)
+static int mts_spi_dout_remove(struct spi_device *spi)
 {
+	spi_dout_dev = NULL;
+
 	return 0;
 }
 
-static struct spi_driver mts_spi_sregout_driver = {
+static struct spi_driver mts_spi_dout_driver = {
 	.driver = {
-		.name = "mts-io-sregout",
+		.name = "mts-io-dout",
 		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 	},
 
-	.probe = mts_spi_sregout_probe,
-	.remove = __devexit_p(mts_spi_sregout_remove),
+	.probe = mts_spi_dout_probe,
+	.remove = __devexit_p(mts_spi_dout_remove),
+};
+
+static int __devinit mts_spi_din_probe(struct spi_device *spi)
+{
+	int tmp;
+
+	if (!strcmp(id_eeprom->hw_version, HWV_MTCDP_0_0)) {
+		log_debug("digital inputs not available on 0.0 hw");
+		return -ENODEV;
+	}
+
+	spi->max_speed_hz = 1 * 1000 * 1000;
+	spi->mode = SPI_CPHA;
+
+	tmp = spi_setup(spi);
+	if (tmp < 0) {
+		log_error("spi_setup din failed");
+		return tmp;
+	}
+
+	spi_din_dev = spi;
+
+	return 0;
+}
+
+static int mts_spi_din_remove(struct spi_device *spi)
+{
+	spi_din_dev = NULL;
+
+	return 0;
+}
+
+static struct spi_driver mts_spi_din_driver = {
+	.driver = {
+		.name = "mts-io-din",
+		.bus = &spi_bus_type,
+		.owner = THIS_MODULE,
+	},
+
+	.probe = mts_spi_din_probe,
+	.remove = __devexit_p(mts_spi_din_remove),
 };
 
 static int __devinit mts_spi_board_temp_probe(struct spi_device *spi)
@@ -1248,17 +1622,19 @@ static int __devinit mts_spi_board_temp_probe(struct spi_device *spi)
 
 	tmp = spi_setup(spi);
 	if (tmp < 0) {
-		error("spi_setup board-tmp");
+		log_error("spi_setup board-temp failed");
 		return tmp;
 	}
 
-	spi_temp = spi;
+	spi_board_temp_dev = spi;
 
 	return 0;
 }
 
 static int mts_spi_board_temp_remove(struct spi_device *spi)
 {
+	spi_board_temp_dev = NULL;
+
 	return 0;
 }
 
@@ -1275,10 +1651,15 @@ static struct spi_driver mts_spi_board_temp_driver = {
 
 static int __init mts_io_init(void)
 {
-	int i;
+	struct gpio_pin *pin;
 	int ret;
 
-	info("init");
+	log_info("init: " DRIVER_VERSION);
+
+	ret = mts_id_eeprom_load();
+	if (ret) {
+		goto error1;
+	}
 
 	mts_io_platform_device = platform_device_alloc(PLATFORM_NAME, -1);
 	if (!mts_io_platform_device) {
@@ -1297,81 +1678,104 @@ static int __init mts_io_init(void)
 		goto error3;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(gpio_pins); i++) {
-		gpio_request(gpio_pins[i].pin, gpio_pins[i].name);
-
-		if (board_rev >= gpio_pins[i].board_rev_added) {
-			if (gpio_pins[i].direction == DIR_OUTPUT) {
-				at91_set_gpio_output(gpio_pins[i].pin,
-						gpio_pins[i].output_value);
-			} else {
-				at91_set_gpio_input(gpio_pins[i].pin,
-						gpio_pins[i].use_pullup);
-			}
-		}
-
-		if (i == 1) {
-			board_rev = (at91_get_gpio_value(GPIO_VER1) << 1) |
-					at91_get_gpio_value(GPIO_VER0);
-			board_rev ^= 0x03;
-			info("board rev: %d", board_rev);
-
-			if (board_rev == BOARD_REVA) {
-				error("rev A boards are not supported");
-				ret = -EIO;
-				goto error3;
-			}
-		}
+	ret = spi_register_driver(&mts_spi_sout_driver);
+	if (ret) {
+		goto error4;
 	}
 
-	at91_set_gpio_value(GPIO_ENIO, 0);
+	ret = spi_register_driver(&mts_spi_board_temp_driver);
+	if (ret) {
+		goto error7;
+	}
 
-	ret = spi_register_driver(&mts_spi_sregout_driver);
+	ret = spi_register_driver(&mts_spi_dout_driver);
 	if (ret) {
-		goto error3;
+		goto error5;
 	}
 
-	ret = spi_register_driver(&mts_spi_board_temp_driver);
+	ret = spi_register_driver(&mts_spi_din_driver);
 	if (ret) {
-		goto error4;
+		goto error6;
+	}
+
+	adc_base = ioremap(AT91SAM9260_BASE_ADC, SZ_16K);
+	if (!adc_base) {
+		goto error8;
 	}
 
+	adc_clk = clk_get(NULL, "adc_clk");
+	if (!adc_clk) {
+		goto error9;
+	}
+	clk_enable(adc_clk);
+
+	ADC_CONVERT_RESET(adc_base);
+	writel(ADC_MODE_DEFAULT, adc_base + ADC_MR_OFFSET);
+	writel(0x000F0F0F, adc_base + ADC_IDR_OFFSET);
+	if (!strcmp(id_eeprom->hw_version, HWV_MTCDP_0_0)) {
+		writel(0x0F, adc_base + ADC_CHDR_OFFSET);
+	} else {
+		writel(0x0F, adc_base + ADC_CHER_OFFSET);
+	}
+
+	for (pin = gpio_pins; *pin->name; pin++) {
+		gpio_request(pin->pin, pin->name);
+
+		if (pin->direction == GPIO_DIR_OUTPUT) {
+			at91_set_gpio_output(pin->pin, pin->output_value);
+		} else {
+			at91_set_gpio_input(pin->pin, pin->use_pullup);
+		}
+	}
+
+	pin = gpio_pin_by_name("ENIO");
+	at91_set_gpio_value(pin->pin, 0);
+
 	blink_callback(NULL);
 
 	return 0;
 
+error9:
+	iounmap(adc_base);
+error8:
+	spi_unregister_driver(&mts_spi_board_temp_driver);
+error7:
+	spi_unregister_driver(&mts_spi_din_driver);
+error6:
+	spi_unregister_driver(&mts_spi_dout_driver);
+error5:
+	spi_unregister_driver(&mts_spi_sout_driver);
 error4:
-	spi_unregister_driver(&mts_spi_sregout_driver);
+	sysfs_remove_group(&mts_io_platform_device->dev.kobj,
+				&platform_attribute_group);
 error3:
 	platform_device_del(mts_io_platform_device);
 error2:
 	platform_device_put(mts_io_platform_device);
 error1:
-	error("init failed: %d", ret);
+	log_error("init failed: %d", ret);
 
 	return ret;
 }
 
 static void __exit mts_io_exit(void)
 {
-	int i;
-
 	cancel_delayed_work_sync(&blink_work);
 
-	spi_unregister_driver(&mts_spi_board_temp_driver);
-	spi_unregister_driver(&mts_spi_sregout_driver);
+	iounmap(adc_base);
+	clk_disable(adc_clk);
+	clk_put(adc_clk);
 
-	for (i = 0; i < ARRAY_SIZE(gpio_pins); i++) {
-		if (board_rev >= gpio_pins[i].board_rev_added) {
-			at91_set_gpio_input(gpio_pins[i].pin, gpio_pins[i].use_pullup);
-		}
-	}
+	spi_unregister_driver(&mts_spi_din_driver);
+	spi_unregister_driver(&mts_spi_dout_driver);
+	spi_unregister_driver(&mts_spi_board_temp_driver);
+	spi_unregister_driver(&mts_spi_sout_driver);
 
 	sysfs_remove_group(&mts_io_platform_device->dev.kobj,
 				&platform_attribute_group);
 	platform_device_unregister(mts_io_platform_device);
 
-	info("exiting");
+	log_info("exiting");
 }
 
 module_init(mts_io_init);
@@ -1382,5 +1786,7 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
 
-
-
+MODULE_ALIAS("mts-io-sout");
+MODULE_ALIAS("mts-io-board-temp");
+MODULE_ALIAS("mts-io-dout");
+MODULE_ALIAS("mts-io-din");