1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
Kernel driver i2c-nforce2
-------------------------
Status: Well tested
Supported adapters:
* nVidia nForce2 SMBus PCI interface
(10de:0064, included in nForce2 MCP,
10de:0084, included in nForce2 Ultra 400 MCP)
Datasheet: not publicly available, but seems to be similar to the
AMD-8111 SMBus 2.0 adapter.
* nVidia nForce3 SMBus PCI interface
(10de:00d4, included in nForce3 Pro150 MCP,
10de:00e4, included in nForce3 250Gb MCP)
Datasheet: same as for nForce2 SMBus PCI interface
* nVidia nForce4 SMBus PCI interface
(10de:0052, included in nForce4 MCP)
(10de:0034, included in nForce4 MCP-04)
(10de:0264, included in nForce4 MCP51)
(10de:0368, included in nForce4 MCP55)
(10de:03eb, included in nForce MCP61)
(10de:0446, included in nForce MCP65)
Datasheet: same as for nForce2 SMBus PCI interface
Author: Hans-Frieder Vogt <hfvogt@arcor.de>
Description
-----------
i2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2,
nForce3 and nForce4 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 nForce2/3/4 chipset seems to be very similar to the
SMBus 2.0 adapter in the AMD-8111 southbridge. 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.
|
