On 4/7/06, Mark Rages <markrages at gmail.com> wrote:
> I'm guessing I need to get this interface working:
>
> 00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a2)
> Subsystem: nVidia Corporation: Unknown device cb84
>
> This has PCI ID 10de:0264.
>
> I tried hacking adding this ID to the nforce2 driver, but I still
> can't get anything from decode-dimms.pl.
>
> What do I need to do?
Replying to myself.
I noticed that the lspci -v output looks like this:
00:0a.1 SMBus: nVidia Corporation MCP51 SMBus (rev a2)
Subsystem: nVidia Corporation: Unknown device cb84
Flags: 66Mhz, fast devsel, IRQ 5
I/O ports at 0600 [size=64]
I/O ports at 0700 [size=64]
Capabilities: [44] Power Management version 2
The hacked i2c-nforce2 wasn't working because the call to
pci_read_config_word() was returning 0x00 for the iobase .
I made another quick hack to i2c-nforce2 to hardcode iobase=0x600 for
the first smbus interface and iobase=0x700 for the second smbus
interface.
Now the modules load and decode-dimms.pl is working.
I'm not much of a kernel hacker, so tell me if you need any more information.
Regards,
Mark
markrages at gmail
--
You think that it is a secret, but it never has been one.
- fortune cookie
