diff options
| author | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-07-26 09:51:16 -0300 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2019-07-31 13:25:27 -0600 |
| commit | ccf988b66d697efcd0ceccc2398e0d9b909cd17c (patch) | |
| tree | 94022b812a20419675e4cac5af1540d75523d31d /Documentation/i2c/busses/i2c-nforce2.rst | |
| parent | 09f4c750a8c7d1fc0b7bb3a7aa1de55de897a375 (diff) | |
docs: i2c: convert to ReST and add to driver-api bookset
Convert each file at I2C subsystem, renaming them to .rst and
adding to the driver-api book.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/i2c/busses/i2c-nforce2.rst')
| -rw-r--r-- | Documentation/i2c/busses/i2c-nforce2.rst | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/i2c/busses/i2c-nforce2.rst b/Documentation/i2c/busses/i2c-nforce2.rst new file mode 100644 index 000000000000..83181445268f --- /dev/null +++ b/Documentation/i2c/busses/i2c-nforce2.rst @@ -0,0 +1,53 @@ +========================= +Kernel driver i2c-nforce2 +========================= + +Supported adapters: + * nForce2 MCP 10de:0064 + * nForce2 Ultra 400 MCP 10de:0084 + * nForce3 Pro150 MCP 10de:00D4 + * nForce3 250Gb MCP 10de:00E4 + * nForce4 MCP 10de:0052 + * nForce4 MCP-04 10de:0034 + * nForce MCP51 10de:0264 + * nForce MCP55 10de:0368 + * nForce MCP61 10de:03EB + * nForce MCP65 10de:0446 + * nForce MCP67 10de:0542 + * nForce MCP73 10de:07D8 + * nForce MCP78S 10de:0752 + * nForce MCP79 10de:0AA2 + +Datasheet: + not publicly available, but seems to be similar to the + AMD-8111 SMBus 2.0 adapter. + +Authors: + - Hans-Frieder Vogt <hfvogt@gmx.net>, + - Thomas Leibold <thomas@plx.com>, + - Patrick Dreker <patrick@dreker.de> + +Description +----------- + +i2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2 MCP. + +If your ``lspci -v`` listing shows something like the following:: + + 00:01.1 SMBus: nVidia Corporation: Unknown device 0064 (rev a2) + Subsystem: Asustek Computer, Inc.: Unknown device 0c11 + Flags: 66Mhz, fast devsel, IRQ 5 + I/O ports at c000 [size=32] + Capabilities: <available only to root> + +then this driver should support the SMBuses of your motherboard. + + +Notes +----- + +The SMBus adapter in the nForce2 chipset seems to be very similar to the +SMBus 2.0 adapter in the AMD-8111 south bridge. However, I could only get +the driver to work with direct I/O access, which is different to the EC +interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the +Asus A7N8X lists two SMBuses, both of which are supported by this driver. |