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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /Documentation/i2c/busses/i2c-nforce2
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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1Kernel driver i2c-nforce2
2
3Supported adapters:
4 * nForce2 MCP 10de:0064
5 * nForce2 Ultra 400 MCP 10de:0084
6 * nForce3 Pro150 MCP 10de:00D4
7 * nForce3 250Gb MCP 10de:00E4
8 * nForce4 MCP 10de:0052
9
10Datasheet: not publically available, but seems to be similar to the
11 AMD-8111 SMBus 2.0 adapter.
12
13Authors:
14 Hans-Frieder Vogt <hfvogt@arcor.de>,
15 Thomas Leibold <thomas@plx.com>,
16 Patrick Dreker <patrick@dreker.de>
17
18Description
19-----------
20
21i2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2 MCP.
22
23If your 'lspci -v' listing shows something like the following,
24
2500:01.1 SMBus: nVidia Corporation: Unknown device 0064 (rev a2)
26 Subsystem: Asustek Computer, Inc.: Unknown device 0c11
27 Flags: 66Mhz, fast devsel, IRQ 5
28 I/O ports at c000 [size=32]
29 Capabilities: <available only to root>
30
31then this driver should support the SMBuses of your motherboard.
32
33
34Notes
35-----
36
37The SMBus adapter in the nForce2 chipset seems to be very similar to the
38SMBus 2.0 adapter in the AMD-8111 southbridge. However, I could only get
39the driver to work with direct I/O access, which is different to the EC
40interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the
41Asus A7N8X lists two SMBuses, both of which are supported by this driver.