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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-08 17:33:47 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-08 19:18:18 +0100
commit097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (patch)
tree9034d676d9096857a380aab9d99e3e88fccb6bfe /Documentation/hwmon/dme1737
parentc41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff)
parentaeee90dfa01844168cd7f8051d0a0f969c573067 (diff)
Merge Linus' latest into master
Conflicts: drivers/watchdog/at91rm9200_wdt.c drivers/watchdog/davinci_wdt.c drivers/watchdog/ep93xx_wdt.c drivers/watchdog/ixp2000_wdt.c drivers/watchdog/ixp4xx_wdt.c drivers/watchdog/ks8695_wdt.c drivers/watchdog/omap_wdt.c drivers/watchdog/pnx4008_wdt.c drivers/watchdog/sa1100_wdt.c drivers/watchdog/wdt285.c
Diffstat (limited to 'Documentation/hwmon/dme1737')
-rw-r--r--Documentation/hwmon/dme173753
1 files changed, 37 insertions, 16 deletions
diff --git a/Documentation/hwmon/dme1737 b/Documentation/hwmon/dme1737
index b1fe00999439..001d2e70bc11 100644
--- a/Documentation/hwmon/dme1737
+++ b/Documentation/hwmon/dme1737
@@ -10,6 +10,10 @@ Supported chips:
Prefix: 'sch311x'
Addresses scanned: none, address read from Super-I/O config space
Datasheet: http://www.nuhorizons.com/FeaturedProducts/Volume1/SMSC/311x.pdf
+ * SMSC SCH5027
+ Prefix: 'sch5027'
+ Addresses scanned: I2C 0x2c, 0x2d, 0x2e
+ Datasheet: Provided by SMSC upon request and under NDA
Authors:
Juerg Haefliger <juergh@gmail.com>
@@ -27,33 +31,31 @@ Module Parameters
following boards:
- VIA EPIA SN18000
-Note that there is no need to use this parameter if the driver loads without
-complaining. The driver will say so if it is necessary.
-
Description
-----------
This driver implements support for the hardware monitoring capabilities of the
-SMSC DME1737 and Asus A8000 (which are the same) and SMSC SCH311x Super-I/O
-chips. These chips feature monitoring of 3 temp sensors temp[1-3] (2 remote
-diodes and 1 internal), 7 voltages in[0-6] (6 external and 1 internal) and up
-to 6 fan speeds fan[1-6]. Additionally, the chips implement up to 5 PWM
-outputs pwm[1-3,5-6] for controlling fan speeds both manually and
+SMSC DME1737 and Asus A8000 (which are the same), SMSC SCH5027, and SMSC
+SCH311x Super-I/O chips. These chips feature monitoring of 3 temp sensors
+temp[1-3] (2 remote diodes and 1 internal), 7 voltages in[0-6] (6 external and
+1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement
+up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
automatically.
-For the DME1737 and A8000, fan[1-2] and pwm[1-2] are always present. Fan[3-6]
-and pwm[3,5-6] are optional features and their availability depends on the
-configuration of the chip. The driver will detect which features are present
-during initialization and create the sysfs attributes accordingly.
+For the DME1737, A8000 and SCH5027, fan[1-2] and pwm[1-2] are always present.
+Fan[3-6] and pwm[3,5-6] are optional features and their availability depends on
+the configuration of the chip. The driver will detect which features are
+present during initialization and create the sysfs attributes accordingly.
For the SCH311x, fan[1-3] and pwm[1-3] are always present and fan[4-6] and
pwm[5-6] don't exist.
-The hardware monitoring features of the DME1737 and A8000 are only accessible
-via SMBus, while the SCH311x only provides access via the ISA bus. The driver
-will therefore register itself as an I2C client driver if it detects a DME1737
-or A8000 and as a platform driver if it detects a SCH311x chip.
+The hardware monitoring features of the DME1737, A8000, and SCH5027 are only
+accessible via SMBus, while the SCH311x only provides access via the ISA bus.
+The driver will therefore register itself as an I2C client driver if it detects
+a DME1737, A8000, or SCH5027 and as a platform driver if it detects a SCH311x
+chip.
Voltage Monitoring
@@ -64,6 +66,7 @@ scaling resistors. The values returned by the driver therefore reflect true
millivolts and don't need scaling. The voltage inputs are mapped as follows
(the last column indicates the input ranges):
+DME1737, A8000:
in0: +5VTR (+5V standby) 0V - 6.64V
in1: Vccp (processor core) 0V - 3V
in2: VCC (internal +3.3V) 0V - 4.38V
@@ -72,6 +75,24 @@ millivolts and don't need scaling. The voltage inputs are mapped as follows
in5: VTR (+3.3V standby) 0V - 4.38V
in6: Vbat (+3.0V) 0V - 4.38V
+SCH311x:
+ in0: +2.5V 0V - 6.64V
+ in1: Vccp (processor core) 0V - 2V
+ in2: VCC (internal +3.3V) 0V - 4.38V
+ in3: +5V 0V - 6.64V
+ in4: +12V 0V - 16V
+ in5: VTR (+3.3V standby) 0V - 4.38V
+ in6: Vbat (+3.0V) 0V - 4.38V
+
+SCH5027:
+ in0: +5VTR (+5V standby) 0V - 6.64V
+ in1: Vccp (processor core) 0V - 3V
+ in2: VCC (internal +3.3V) 0V - 4.38V
+ in3: V2_IN 0V - 1.5V
+ in4: V1_IN 0V - 1.5V
+ in5: VTR (+3.3V standby) 0V - 4.38V
+ in6: Vbat (+3.0V) 0V - 4.38V
+
Each voltage input has associated min and max limits which trigger an alarm
when crossed.