Merge commit 'origin'

Manual fixup of conflicts on:

	arch/powerpc/include/asm/dcr-regs.h
	drivers/net/ibm_newemac/core.h

8 files changed, 647 insertions, 32 deletions

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d402e8d813ce..ebacc0af40fe 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -540,6 +540,15 @@ config SENSORS_LM93
 	  This driver can also be built as a module.  If so, the module
 	  will be called lm93.
 
+config SENSORS_MAX1111
+	tristate "Maxim MAX1111 Multichannel, Serial 8-bit ADC chip"
+	depends on SPI_MASTER
+	help
+	  Say y here to support Maxim's MAX1111 ADC chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max1111.
+
 config SENSORS_MAX1619
 	tristate "Maxim MAX1619 sensor chip"
 	depends on I2C
@@ -791,6 +800,13 @@ config SENSORS_W83627EHF
 	  This driver can also be built as a module.  If so, the module
 	  will be called w83627ehf.
 
+config SENSORS_ULTRA45
+	tristate "Sun Ultra45 PIC16F747"
+	depends on SPARC64
+	help
+	  This driver provides support for the Ultra45 workstation environmental
+	  sensors.
+
 config SENSORS_HDAPS
 	tristate "IBM Hard Drive Active Protection System (hdaps)"
 	depends on INPUT && X86
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index 950134ab8426..042d5a78622e 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_SENSORS_FSCHMD)	+= fschmd.o
 obj-$(CONFIG_SENSORS_FSCPOS)	+= fscpos.o
 obj-$(CONFIG_SENSORS_GL518SM)	+= gl518sm.o
 obj-$(CONFIG_SENSORS_GL520SM)	+= gl520sm.o
+obj-$(CONFIG_SENSORS_ULTRA45)	+= ultra45_env.o
 obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o
 obj-$(CONFIG_SENSORS_I5K_AMB)	+= i5k_amb.o
 obj-$(CONFIG_SENSORS_IBMAEM)	+= ibmaem.o
@@ -59,6 +60,7 @@ obj-$(CONFIG_SENSORS_LM87)	+= lm87.o
 obj-$(CONFIG_SENSORS_LM90)	+= lm90.o
 obj-$(CONFIG_SENSORS_LM92)	+= lm92.o
 obj-$(CONFIG_SENSORS_LM93)	+= lm93.o
+obj-$(CONFIG_SENSORS_MAX1111)	+= max1111.o
 obj-$(CONFIG_SENSORS_MAX1619)	+= max1619.o
 obj-$(CONFIG_SENSORS_MAX6650)	+= max6650.o
 obj-$(CONFIG_SENSORS_PC87360)	+= pc87360.o
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index d568c65c1370..d9e7a49d6cbf 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -279,7 +279,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
 		{ "OTES1 Fan",		36, 2, 60, 1, 0 },
 		{ NULL, 0, 0, 0, 0, 0 } }
 	},
-	{ 0x0011, NULL /* Abit AT8 32X, need DMI string */, {
+	{ 0x0011, "AT8 32X(ATI RD580-ULI M1575)", {
 		{ "CPU Core",		 0, 0, 10, 1, 0 },
 		{ "DDR",		 1, 0, 20, 1, 0 },
 		{ "DDR VTT",		 2, 0, 10, 1, 0 },
@@ -303,6 +303,7 @@ static const struct abituguru3_motherboard_info abituguru3_motherboards[] = {
 		{ "SYS Fan",		34, 2, 60, 1, 0 },
 		{ "AUX1 Fan",		35, 2, 60, 1, 0 },
 		{ "AUX2 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX3 Fan",		37, 2, 60, 1, 0 },
 		{ NULL, 0, 0, 0, 0, 0 } }
 	},
 	{ 0x0012, NULL /* Abit AN8 32X, need DMI string */, {
diff --git a/drivers/hwmon/ad7414.c b/drivers/hwmon/ad7414.c
index ce8d94fbfd7e..bfda8c80ef24 100644
--- a/drivers/hwmon/ad7414.c
+++ b/drivers/hwmon/ad7414.c
@@ -69,7 +69,7 @@ static inline int ad7414_write(struct i2c_client *client, u8 reg, u8 value)
 	return i2c_smbus_write_byte_data(client, reg, value);
 }
 
-struct ad7414_data *ad7414_update_device(struct device *dev)
+static struct ad7414_data *ad7414_update_device(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 	struct ad7414_data *data = i2c_get_clientdata(client);
diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c
index d191118ba0cb..d6b490d3e36f 100644
--- a/drivers/hwmon/atxp1.c
+++ b/drivers/hwmon/atxp1.c
@@ -31,7 +31,7 @@
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("System voltages control via Attansic ATXP1");
-MODULE_VERSION("0.6.2");
+MODULE_VERSION("0.6.3");
 MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>");
 
 #define ATXP1_VID	0x00
@@ -289,16 +289,16 @@ static int atxp1_detect(struct i2c_client *new_client, int kind,
 	if (!((i2c_smbus_read_byte_data(new_client, 0x3e) == 0) &&
 	     (i2c_smbus_read_byte_data(new_client, 0x3f) == 0) &&
 	     (i2c_smbus_read_byte_data(new_client, 0xfe) == 0) &&
-	     (i2c_smbus_read_byte_data(new_client, 0xff) == 0) )) {
+	     (i2c_smbus_read_byte_data(new_client, 0xff) == 0)))
+		return -ENODEV;
 
-		/* No vendor ID, now checking if registers 0x10,0x11 (non-existent)
-		 * showing the same as register 0x00 */
-		temp = i2c_smbus_read_byte_data(new_client, 0x00);
+	/* No vendor ID, now checking if registers 0x10,0x11 (non-existent)
+	 * showing the same as register 0x00 */
+	temp = i2c_smbus_read_byte_data(new_client, 0x00);
 
-		if (!((i2c_smbus_read_byte_data(new_client, 0x10) == temp) &&
-			 (i2c_smbus_read_byte_data(new_client, 0x11) == temp) ))
-			return -ENODEV;
-	}
+	if (!((i2c_smbus_read_byte_data(new_client, 0x10) == temp) &&
+	      (i2c_smbus_read_byte_data(new_client, 0x11) == temp)))
+		return -ENODEV;
 
 	/* Get VRM */
 	temp = vid_which_vrm();
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index 30cdb0956779..d793cc011990 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -46,6 +46,8 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
+#include <linux/string.h>
+#include <linux/dmi.h>
 #include <asm/io.h>
 
 #define DRVNAME "it87"
@@ -236,6 +238,8 @@ struct it87_sio_data {
 	/* Values read from Super-I/O config space */
 	u8 revision;
 	u8 vid_value;
+	/* Values set based on DMI strings */
+	u8 skip_pwm;
 };
 
 /* For each registered chip, we need to keep some data in memory.
@@ -273,10 +277,10 @@ struct it87_data {
 static inline int has_16bit_fans(const struct it87_data *data)
 {
 	/* IT8705F Datasheet 0.4.1, 3h == Version G.
-	   IT8712F Datasheet 0.9.1, section 8.3.5 indicates 7h == Version I.
+	   IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
 	   These are the first revisions with 16bit tachometer support. */
 	return (data->type == it87 && data->revision >= 0x03)
-	    || (data->type == it8712 && data->revision >= 0x07)
+	    || (data->type == it8712 && data->revision >= 0x08)
 	    || data->type == it8716
 	    || data->type == it8718;
 }
@@ -964,6 +968,7 @@ static int __init it87_find(unsigned short *address,
 {
 	int err = -ENODEV;
 	u16 chip_type;
+	const char *board_vendor, *board_name;
 
 	superio_enter();
 	chip_type = force_id ? force_id : superio_inw(DEVID);
@@ -1022,6 +1027,24 @@ static int __init it87_find(unsigned short *address,
 			pr_info("it87: in7 is VCCH (+5V Stand-By)\n");
 	}
 
+	/* Disable specific features based on DMI strings */
+	board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
+	board_name = dmi_get_system_info(DMI_BOARD_NAME);
+	if (board_vendor && board_name) {
+		if (strcmp(board_vendor, "nVIDIA") == 0
+		 && strcmp(board_name, "FN68PT") == 0) {
+			/* On the Shuttle SN68PT, FAN_CTL2 is apparently not
+			   connected to a fan, but to something else. One user
+			   has reported instant system power-off when changing
+			   the PWM2 duty cycle, so we disable it.
+			   I use the board name string as the trigger in case
+			   the same board is ever used in other systems. */
+			pr_info("it87: Disabling pwm2 due to "
+				"hardware constraints\n");
+			sio_data->skip_pwm = (1 << 1);
+		}
+	}
+
 exit:
 	superio_exit();
 	return err;
@@ -1168,25 +1191,33 @@ static int __devinit it87_probe(struct platform_device *pdev)
 	}
 
 	if (enable_pwm_interface) {
-		if ((err = device_create_file(dev,
-		     &sensor_dev_attr_pwm1_enable.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm2_enable.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm3_enable.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm1.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm2.dev_attr))
-		 || (err = device_create_file(dev,
-		     &sensor_dev_attr_pwm3.dev_attr))
-		 || (err = device_create_file(dev,
-		     &dev_attr_pwm1_freq))
-		 || (err = device_create_file(dev,
-		     &dev_attr_pwm2_freq))
-		 || (err = device_create_file(dev,
-		     &dev_attr_pwm3_freq)))
-			goto ERROR4;
+		if (!(sio_data->skip_pwm & (1 << 0))) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm1_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm1.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm1_freq)))
+				goto ERROR4;
+		}
+		if (!(sio_data->skip_pwm & (1 << 1))) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm2_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm2.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm2_freq)))
+				goto ERROR4;
+		}
+		if (!(sio_data->skip_pwm & (1 << 2))) {
+			if ((err = device_create_file(dev,
+			     &sensor_dev_attr_pwm3_enable.dev_attr))
+			 || (err = device_create_file(dev,
+			     &sensor_dev_attr_pwm3.dev_attr))
+			 || (err = device_create_file(dev,
+			     &dev_attr_pwm3_freq)))
+				goto ERROR4;
+		}
 	}
 
 	if (data->type == it8712 || data->type == it8716
@@ -1546,6 +1577,7 @@ static int __init sm_it87_init(void)
 	unsigned short isa_address=0;
 	struct it87_sio_data sio_data;
 
+	memset(&sio_data, 0, sizeof(struct it87_sio_data));
 	err = it87_find(&isa_address, &sio_data);
 	if (err)
 		return err;
diff --git a/drivers/hwmon/max1111.c b/drivers/hwmon/max1111.c
new file mode 100644
index 000000000000..bfaa665ccf32
--- /dev/null
+++ b/drivers/hwmon/max1111.c
@@ -0,0 +1,244 @@
+/*
+ * max1111.c - +2.7V, Low-Power, Multichannel, Serial 8-bit ADCs
+ *
+ * Based on arch/arm/mach-pxa/corgi_ssp.c
+ *
+ * Copyright (C) 2004-2005 Richard Purdie
+ *
+ * Copyright (C) 2008 Marvell International Ltd.
+ * 	Eric Miao <eric.miao@marvell.com>
+ *
+ *  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
+ *  publishhed by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/spi/spi.h>
+
+#define MAX1111_TX_BUF_SIZE	1
+#define MAX1111_RX_BUF_SIZE	2
+
+/* MAX1111 Commands */
+#define MAX1111_CTRL_PD0      (1u << 0)
+#define MAX1111_CTRL_PD1      (1u << 1)
+#define MAX1111_CTRL_SGL      (1u << 2)
+#define MAX1111_CTRL_UNI      (1u << 3)
+#define MAX1111_CTRL_SEL_SH   (5)	/* NOTE: bit 4 is ignored */
+#define MAX1111_CTRL_STR      (1u << 7)
+
+struct max1111_data {
+	struct spi_device	*spi;
+	struct device		*hwmon_dev;
+	struct spi_message	msg;
+	struct spi_transfer	xfer[2];
+	uint8_t *tx_buf;
+	uint8_t *rx_buf;
+};
+
+static int max1111_read(struct device *dev, int channel)
+{
+	struct max1111_data *data = dev_get_drvdata(dev);
+	uint8_t v1, v2;
+	int err;
+
+	data->tx_buf[0] = (channel << MAX1111_CTRL_SEL_SH) |
+		MAX1111_CTRL_PD0 | MAX1111_CTRL_PD1 |
+		MAX1111_CTRL_SGL | MAX1111_CTRL_UNI | MAX1111_CTRL_STR;
+
+	err = spi_sync(data->spi, &data->msg);
+	if (err < 0) {
+		dev_err(dev, "spi_sync failed with %d\n", err);
+		return err;
+	}
+
+	v1 = data->rx_buf[0];
+	v2 = data->rx_buf[1];
+
+	if ((v1 & 0xc0) || (v2 & 0x3f))
+		return -EINVAL;
+
+	return (v1 << 2) | (v2 >> 6);
+}
+
+#ifdef CONFIG_SHARPSL_PM
+static struct max1111_data *the_max1111;
+
+int max1111_read_channel(int channel)
+{
+	return max1111_read(&the_max1111->spi->dev, channel);
+}
+EXPORT_SYMBOL(max1111_read_channel);
+#endif
+
+/*
+ * NOTE: SPI devices do not have a default 'name' attribute, which is
+ * likely to be used by hwmon applications to distinguish between
+ * different devices, explicitly add a name attribute here.
+ */
+static ssize_t show_name(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "max1111\n");
+}
+
+static ssize_t show_adc(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	int channel = to_sensor_dev_attr(attr)->index;
+	int ret;
+
+	ret = max1111_read(dev, channel);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%d\n", ret);
+}
+
+#define MAX1111_ADC_ATTR(_id)		\
+	SENSOR_DEVICE_ATTR(adc##_id##_in, S_IRUGO, show_adc, NULL, _id)
+
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+static MAX1111_ADC_ATTR(0);
+static MAX1111_ADC_ATTR(1);
+static MAX1111_ADC_ATTR(2);
+static MAX1111_ADC_ATTR(3);
+
+static struct attribute *max1111_attributes[] = {
+	&dev_attr_name.attr,
+	&sensor_dev_attr_adc0_in.dev_attr.attr,
+	&sensor_dev_attr_adc1_in.dev_attr.attr,
+	&sensor_dev_attr_adc2_in.dev_attr.attr,
+	&sensor_dev_attr_adc3_in.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group max1111_attr_group = {
+	.attrs	= max1111_attributes,
+};
+
+static int setup_transfer(struct max1111_data *data)
+{
+	struct spi_message *m;
+	struct spi_transfer *x;
+
+	data->tx_buf = kmalloc(MAX1111_TX_BUF_SIZE, GFP_KERNEL);
+	if (!data->tx_buf)
+		return -ENOMEM;
+
+	data->rx_buf = kmalloc(MAX1111_RX_BUF_SIZE, GFP_KERNEL);
+	if (!data->rx_buf) {
+		kfree(data->tx_buf);
+		return -ENOMEM;
+	}
+
+	m = &data->msg;
+	x = &data->xfer[0];
+
+	spi_message_init(m);
+
+	x->tx_buf = &data->tx_buf[0];
+	x->len = 1;
+	spi_message_add_tail(x, m);
+
+	x++;
+	x->rx_buf = &data->rx_buf[0];
+	x->len = 2;
+	spi_message_add_tail(x, m);
+
+	return 0;
+}
+
+static int __devinit max1111_probe(struct spi_device *spi)
+{
+	struct max1111_data *data;
+	int err;
+
+	spi->bits_per_word = 8;
+	spi->mode = SPI_MODE_0;
+	err = spi_setup(spi);
+	if (err < 0)
+		return err;
+
+	data = kzalloc(sizeof(struct max1111_data), GFP_KERNEL);
+	if (data == NULL) {
+		dev_err(&spi->dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	err = setup_transfer(data);
+	if (err)
+		goto err_free_data;
+
+	data->spi = spi;
+	spi_set_drvdata(spi, data);
+
+	err = sysfs_create_group(&spi->dev.kobj, &max1111_attr_group);
+	if (err) {
+		dev_err(&spi->dev, "failed to create attribute group\n");
+		goto err_free_all;
+	}
+
+	data->hwmon_dev = hwmon_device_register(&spi->dev);
+	if (IS_ERR(data->hwmon_dev)) {
+		dev_err(&spi->dev, "failed to create hwmon device\n");
+		err = PTR_ERR(data->hwmon_dev);
+		goto err_remove;
+	}
+
+#ifdef CONFIG_SHARPSL_PM
+	the_max1111 = data;
+#endif
+	return 0;
+
+err_remove:
+	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
+err_free_all:
+	kfree(data->rx_buf);
+	kfree(data->tx_buf);
+err_free_data:
+	kfree(data);
+	return err;
+}
+
+static int __devexit max1111_remove(struct spi_device *spi)
+{
+	struct max1111_data *data = spi_get_drvdata(spi);
+
+	hwmon_device_unregister(data->hwmon_dev);
+	sysfs_remove_group(&spi->dev.kobj, &max1111_attr_group);
+	kfree(data->rx_buf);
+	kfree(data->tx_buf);
+	kfree(data);
+	return 0;
+}
+
+static struct spi_driver max1111_driver = {
+	.driver		= {
+		.name	= "max1111",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= max1111_probe,
+	.remove		= __devexit_p(max1111_remove),
+};
+
+static int __init max1111_init(void)
+{
+	return spi_register_driver(&max1111_driver);
+}
+module_init(max1111_init);
+
+static void __exit max1111_exit(void)
+{
+	spi_unregister_driver(&max1111_driver);
+}
+module_exit(max1111_exit);
+
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>");
+MODULE_DESCRIPTION("MAX1111 ADC Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/ultra45_env.c b/drivers/hwmon/ultra45_env.c
new file mode 100644
index 000000000000..68e90abeba96
--- /dev/null
+++ b/drivers/hwmon/ultra45_env.c
@@ -0,0 +1,320 @@
+/* ultra45_env.c: Driver for Ultra45 PIC16F747 environmental monitor.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/io.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+#define DRV_MODULE_VERSION	"0.1"
+
+MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
+MODULE_DESCRIPTION("Ultra45 environmental monitor driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_MODULE_VERSION);
+
+/* PIC device registers */
+#define REG_CMD		0x00UL
+#define  REG_CMD_RESET	0x80
+#define  REG_CMD_ESTAR	0x01
+#define REG_STAT	0x01UL
+#define  REG_STAT_FWVER	0xf0
+#define  REG_STAT_TGOOD	0x08
+#define  REG_STAT_STALE	0x04
+#define  REG_STAT_BUSY	0x02
+#define  REG_STAT_FAULT	0x01
+#define REG_DATA	0x40UL
+#define REG_ADDR	0x41UL
+#define REG_SIZE	0x42UL
+
+/* Registers accessed indirectly via REG_DATA/REG_ADDR */
+#define IREG_FAN0		0x00
+#define IREG_FAN1		0x01
+#define IREG_FAN2		0x02
+#define IREG_FAN3		0x03
+#define IREG_FAN4		0x04
+#define IREG_FAN5		0x05
+#define IREG_LCL_TEMP		0x06
+#define IREG_RMT1_TEMP		0x07
+#define IREG_RMT2_TEMP		0x08
+#define IREG_RMT3_TEMP		0x09
+#define IREG_LM95221_TEMP	0x0a
+#define IREG_FIRE_TEMP		0x0b
+#define IREG_LSI1064_TEMP	0x0c
+#define IREG_FRONT_TEMP		0x0d
+#define IREG_FAN_STAT		0x0e
+#define IREG_VCORE0		0x0f
+#define IREG_VCORE1		0x10
+#define IREG_VMEM0		0x11
+#define IREG_VMEM1		0x12
+#define IREG_PSU_TEMP		0x13
+
+struct env {
+	void __iomem	*regs;
+	spinlock_t	lock;
+
+	struct device	*hwmon_dev;
+};
+
+static u8 env_read(struct env *p, u8 ireg)
+{
+	u8 ret;
+
+	spin_lock(&p->lock);
+	writeb(ireg, p->regs + REG_ADDR);
+	ret = readb(p->regs + REG_DATA);
+	spin_unlock(&p->lock);
+
+	return ret;
+}
+
+static void env_write(struct env *p, u8 ireg, u8 val)
+{
+	spin_lock(&p->lock);
+	writeb(ireg, p->regs + REG_ADDR);
+	writeb(val, p->regs + REG_DATA);
+	spin_unlock(&p->lock);
+}
+
+/* There seems to be a adr7462 providing these values, thus a lot
+ * of these calculations are borrowed from the adt7470 driver.
+ */
+#define FAN_PERIOD_TO_RPM(x)	((90000 * 60) / (x))
+#define FAN_RPM_TO_PERIOD	FAN_PERIOD_TO_RPM
+#define FAN_PERIOD_INVALID	(0xff << 8)
+#define FAN_DATA_VALID(x)	((x) && (x) != FAN_PERIOD_INVALID)
+
+static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	int rpm, period;
+	u8 val;
+
+	val = env_read(p, IREG_FAN0 + fan_nr);
+	period = (int) val << 8;
+	if (FAN_DATA_VALID(period))
+		rpm = FAN_PERIOD_TO_RPM(period);
+	else
+		rpm = 0;
+
+	return sprintf(buf, "%d\n", rpm);
+}
+
+static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	int rpm = simple_strtol(buf, NULL, 10);
+	struct env *p = dev_get_drvdata(dev);
+	int period;
+	u8 val;
+
+	if (!rpm)
+		return -EINVAL;
+
+	period = FAN_RPM_TO_PERIOD(rpm);
+	val = period >> 8;
+	env_write(p, IREG_FAN0 + fan_nr, val);
+
+	return count;
+}
+
+static ssize_t show_fan_fault(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	u8 val = env_read(p, IREG_FAN_STAT);
+	return sprintf(buf, "%d\n", (val & (1 << fan_nr)) ? 1 : 0);
+}
+
+#define fan(index)							\
+static SENSOR_DEVICE_ATTR(fan##index##_speed, S_IRUGO | S_IWUSR,	\
+		show_fan_speed, set_fan_speed, index);			\
+static SENSOR_DEVICE_ATTR(fan##index##_fault, S_IRUGO,			\
+		show_fan_fault, NULL, index)
+
+fan(0);
+fan(1);
+fan(2);
+fan(3);
+fan(4);
+
+static SENSOR_DEVICE_ATTR(psu_fan_fault, S_IRUGO, show_fan_fault, NULL, 6);
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int temp_nr = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	s8 val;
+
+	val = env_read(p, IREG_LCL_TEMP + temp_nr);
+	return sprintf(buf, "%d\n", ((int) val) - 64);
+}
+
+static SENSOR_DEVICE_ATTR(adt7462_local_temp, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(cpu0_temp, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(cpu1_temp, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(motherboard_temp, S_IRUGO, show_temp, NULL, 3);
+static SENSOR_DEVICE_ATTR(lm95221_local_temp, S_IRUGO, show_temp, NULL, 4);
+static SENSOR_DEVICE_ATTR(fire_temp, S_IRUGO, show_temp, NULL, 5);
+static SENSOR_DEVICE_ATTR(lsi1064_local_temp, S_IRUGO, show_temp, NULL, 6);
+static SENSOR_DEVICE_ATTR(front_panel_temp, S_IRUGO, show_temp, NULL, 7);
+static SENSOR_DEVICE_ATTR(psu_temp, S_IRUGO, show_temp, NULL, 13);
+
+static ssize_t show_stat_bit(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int index = to_sensor_dev_attr(attr)->index;
+	struct env *p = dev_get_drvdata(dev);
+	u8 val;
+
+	val = readb(p->regs + REG_STAT);
+	return sprintf(buf, "%d\n", (val & (1 << index)) ? 1 : 0);
+}
+
+static SENSOR_DEVICE_ATTR(fan_failure, S_IRUGO, show_stat_bit, NULL, 0);
+static SENSOR_DEVICE_ATTR(env_bus_busy, S_IRUGO, show_stat_bit, NULL, 1);
+static SENSOR_DEVICE_ATTR(env_data_stale, S_IRUGO, show_stat_bit, NULL, 2);
+static SENSOR_DEVICE_ATTR(tpm_self_test_passed, S_IRUGO, show_stat_bit, NULL, 3);
+
+static ssize_t show_fwver(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct env *p = dev_get_drvdata(dev);
+	u8 val;
+
+	val = readb(p->regs + REG_STAT);
+	return sprintf(buf, "%d\n", val >> 4);
+}
+
+static SENSOR_DEVICE_ATTR(firmware_version, S_IRUGO, show_fwver, NULL, 0);
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "ultra45\n");
+}
+
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+static struct attribute *env_attributes[] = {
+	&sensor_dev_attr_fan0_speed.dev_attr.attr,
+	&sensor_dev_attr_fan0_fault.dev_attr.attr,
+	&sensor_dev_attr_fan1_speed.dev_attr.attr,
+	&sensor_dev_attr_fan1_fault.dev_attr.attr,
+	&sensor_dev_attr_fan2_speed.dev_attr.attr,
+	&sensor_dev_attr_fan2_fault.dev_attr.attr,
+	&sensor_dev_attr_fan3_speed.dev_attr.attr,
+	&sensor_dev_attr_fan3_fault.dev_attr.attr,
+	&sensor_dev_attr_fan4_speed.dev_attr.attr,
+	&sensor_dev_attr_fan4_fault.dev_attr.attr,
+	&sensor_dev_attr_psu_fan_fault.dev_attr.attr,
+	&sensor_dev_attr_adt7462_local_temp.dev_attr.attr,
+	&sensor_dev_attr_cpu0_temp.dev_attr.attr,
+	&sensor_dev_attr_cpu1_temp.dev_attr.attr,
+	&sensor_dev_attr_motherboard_temp.dev_attr.attr,
+	&sensor_dev_attr_lm95221_local_temp.dev_attr.attr,
+	&sensor_dev_attr_fire_temp.dev_attr.attr,
+	&sensor_dev_attr_lsi1064_local_temp.dev_attr.attr,
+	&sensor_dev_attr_front_panel_temp.dev_attr.attr,
+	&sensor_dev_attr_psu_temp.dev_attr.attr,
+	&sensor_dev_attr_fan_failure.dev_attr.attr,
+	&sensor_dev_attr_env_bus_busy.dev_attr.attr,
+	&sensor_dev_attr_env_data_stale.dev_attr.attr,
+	&sensor_dev_attr_tpm_self_test_passed.dev_attr.attr,
+	&sensor_dev_attr_firmware_version.dev_attr.attr,
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group env_group = {
+	.attrs = env_attributes,
+};
+
+static int __devinit env_probe(struct of_device *op,
+			       const struct of_device_id *match)
+{
+	struct env *p = kzalloc(sizeof(*p), GFP_KERNEL);
+	int err = -ENOMEM;
+
+	if (!p)
+		goto out;
+
+	spin_lock_init(&p->lock);
+
+	p->regs = of_ioremap(&op->resource[0], 0, REG_SIZE, "pic16f747");
+	if (!p->regs)
+		goto out_free;
+
+	err = sysfs_create_group(&op->dev.kobj, &env_group);
+	if (err)
+		goto out_iounmap;
+
+	p->hwmon_dev = hwmon_device_register(&op->dev);
+	if (IS_ERR(p->hwmon_dev)) {
+		err = PTR_ERR(p->hwmon_dev);
+		goto out_sysfs_remove_group;
+	}
+
+	dev_set_drvdata(&op->dev, p);
+	err = 0;
+
+out:
+	return err;
+
+out_sysfs_remove_group:
+	sysfs_remove_group(&op->dev.kobj, &env_group);
+
+out_iounmap:
+	of_iounmap(&op->resource[0], p->regs, REG_SIZE);
+
+out_free:
+	kfree(p);
+	goto out;
+}
+
+static int __devexit env_remove(struct of_device *op)
+{
+	struct env *p = dev_get_drvdata(&op->dev);
+
+	if (p) {
+		sysfs_remove_group(&op->dev.kobj, &env_group);
+		hwmon_device_unregister(p->hwmon_dev);
+		of_iounmap(&op->resource[0], p->regs, REG_SIZE);
+		kfree(p);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id env_match[] = {
+	{
+		.name = "env-monitor",
+		.compatible = "SUNW,ebus-pic16f747-env",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, env_match);
+
+static struct of_platform_driver env_driver = {
+	.name		= "ultra45_env",
+	.match_table	= env_match,
+	.probe		= env_probe,
+	.remove		= __devexit_p(env_remove),
+};
+
+static int __init env_init(void)
+{
+	return of_register_driver(&env_driver, &of_bus_type);
+}
+
+static void __exit env_exit(void)
+{
+	of_unregister_driver(&env_driver);
+}
+
+module_init(env_init);
+module_exit(env_exit);