| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | Kernel driver i2c-nforce2 |
| 2 | |
| 3 | Supported 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 | |
| 10 | Datasheet: not publically available, but seems to be similar to the |
| 11 | AMD-8111 SMBus 2.0 adapter. |
| 12 | |
| 13 | Authors: |
| 14 | Hans-Frieder Vogt <hfvogt@arcor.de>, |
| 15 | Thomas Leibold <thomas@plx.com>, |
| 16 | Patrick Dreker <patrick@dreker.de> |
| 17 | |
| 18 | Description |
| 19 | ----------- |
| 20 | |
| 21 | i2c-nforce2 is a driver for the SMBuses included in the nVidia nForce2 MCP. |
| 22 | |
| 23 | If your 'lspci -v' listing shows something like the following, |
| 24 | |
| 25 | 00:01.1 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 | |
| 31 | then this driver should support the SMBuses of your motherboard. |
| 32 | |
| 33 | |
| 34 | Notes |
| 35 | ----- |
| 36 | |
| 37 | The SMBus adapter in the nForce2 chipset seems to be very similar to the |
| 38 | SMBus 2.0 adapter in the AMD-8111 southbridge. However, I could only get |
| 39 | the driver to work with direct I/O access, which is different to the EC |
| 40 | interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the |
| 41 | Asus A7N8X lists two SMBuses, both of which are supported by this driver. |