1 ========================= 1 =========================
2 Kernel driver i2c-nforce2 2 Kernel driver i2c-nforce2
3 ========================= 3 =========================
4 4
5 Supported adapters: 5 Supported adapters:
6 * nForce2 MCP 10de:0064 6 * nForce2 MCP 10de:0064
7 * nForce2 Ultra 400 MCP 10de:0084 7 * nForce2 Ultra 400 MCP 10de:0084
8 * nForce3 Pro150 MCP 10de:00D4 8 * nForce3 Pro150 MCP 10de:00D4
9 * nForce3 250Gb MCP 10de:00E4 9 * nForce3 250Gb MCP 10de:00E4
10 * nForce4 MCP 10de:0052 10 * nForce4 MCP 10de:0052
11 * nForce4 MCP-04 10de:0034 11 * nForce4 MCP-04 10de:0034
12 * nForce MCP51 10de:0264 12 * nForce MCP51 10de:0264
13 * nForce MCP55 10de:0368 13 * nForce MCP55 10de:0368
14 * nForce MCP61 10de:03EB 14 * nForce MCP61 10de:03EB
15 * nForce MCP65 10de:0446 15 * nForce MCP65 10de:0446
16 * nForce MCP67 10de:0542 16 * nForce MCP67 10de:0542
17 * nForce MCP73 10de:07D8 17 * nForce MCP73 10de:07D8
18 * nForce MCP78S 10de:0752 18 * nForce MCP78S 10de:0752
19 * nForce MCP79 10de:0AA2 19 * nForce MCP79 10de:0AA2
20 20
21 Datasheet: 21 Datasheet:
22 not publicly available, but seems t 22 not publicly available, but seems to be similar to the
23 AMD-8111 SMBus 2.0 adapter. 23 AMD-8111 SMBus 2.0 adapter.
24 24
25 Authors: 25 Authors:
26 - Hans-Frieder Vogt <hfvogt@gmx.net>, 26 - Hans-Frieder Vogt <hfvogt@gmx.net>,
27 - Thomas Leibold <thomas@plx.com>, 27 - Thomas Leibold <thomas@plx.com>,
28 - Patrick Dreker <patrick@dreker.de> 28 - Patrick Dreker <patrick@dreker.de>
29 29
30 Description 30 Description
31 ----------- 31 -----------
32 32
33 i2c-nforce2 is a driver for the SMBuses includ 33 i2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2 MCP.
34 34
35 If your ``lspci -v`` listing shows something l 35 If your ``lspci -v`` listing shows something like the following::
36 36
37 00:01.1 SMBus: nVidia Corporation: Unknown d 37 00:01.1 SMBus: nVidia Corporation: Unknown device 0064 (rev a2)
38 Subsystem: Asustek Computer, Inc.: U 38 Subsystem: Asustek Computer, Inc.: Unknown device 0c11
39 Flags: 66Mhz, fast devsel, IRQ 5 39 Flags: 66Mhz, fast devsel, IRQ 5
40 I/O ports at c000 [size=32] 40 I/O ports at c000 [size=32]
41 Capabilities: <available only to roo 41 Capabilities: <available only to root>
42 42
43 then this driver should support the SMBuses of 43 then this driver should support the SMBuses of your motherboard.
44 44
45 45
46 Notes 46 Notes
47 ----- 47 -----
48 48
49 The SMBus adapter in the nForce2 chipset seems 49 The SMBus adapter in the nForce2 chipset seems to be very similar to the
50 SMBus 2.0 adapter in the AMD-8111 south bridge 50 SMBus 2.0 adapter in the AMD-8111 south bridge. However, I could only get
51 the driver to work with direct I/O access, whi 51 the driver to work with direct I/O access, which is different to the EC
52 interface of the AMD-8111. Tested on Asus A7N8 52 interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the
53 Asus A7N8X lists two SMBuses, both of which ar 53 Asus A7N8X lists two SMBuses, both of which are supported by this driver.
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