PC87431 is not - need full datasheet.

Corey Minyard cminyard at mvista.com
Thu Jan 6 04:40:30 CET 2005


Mark Studebaker wrote:

> thanks for the info about the datasheet requiring an NDA.
> Unfortunately this means things will be difficult.
> But it may be sufficient just to get KCS over I2C working to it.
>
> The chip uses KCS over I2C.
> Corey, can we do that with the IPMI KCS driver? Do we need to
> write code to register with the KCS module to route KCS messages
> to a particlar address on a particular i2c bus?
> How would we do that - or does IPMI already have that capability?
>
> Once that is done, then the standard modules
> bmcsensors -> i2c-ipmi -> ipmi-msghdlr -> ipmi_kcs_sm
> should work.
>
> right Corey?

Well, I don't think so.  There is no such thing as KCS over I2C.  There 
is something called the SMB interface, which is part of the newer IPMI 
driver version from openipmi.sf.net.  I really don't know that much 
about it, someone else did that work and I don't have any hardware that 
supports it.  But if you are running IPMI over I2C, that's probably what 
it is.

Oh wait, the line:
  The Host interface of PC87431 is IPMI 1.5/2.0 SSIF (SMBus)
means that it should support the standard interface that the IPMI SMB 
driver uses.  IIRC, configuring it is kind of a pain, but it is supposed 
to work.

-Corey

>
> mds
>
>
>
>
> Ilia Stolov wrote:
>
>> Mark Studebaker <mds4 <at> verizon.net> writes:
>>
>>
>>> ask National Semiconductor.
>>>
>>> Chan Min Wai (System Administrator) wrote:
>>>
>>>> Hello all,
>>>>
>>>> I'm on Ticket #1853
>>>>
>>>> Is there anyway I can help to obtain a full data sheet?
>>>> What kind of full data sheet do you need?
>>>>
>>>> What should be included?
>>>>
>>>> I would like to help in this, I've contact Intel Support and I think
>>>> they will help in somewhere. So please tell me what do you really want
>>>> and I'll try my best to get that. However I'll have no promise about
>>>> what I can get, but I'll try my very best on this issue.
>>>>
>>>>
>>>>
>>>>> ADM1026 is supported.
>>>>> PC87431 is not - need full datasheet.
>>>>> These are both listed on our new drivers and supported chips pages 
>>>>> for your
>>>>> information.
>>>>> If ADM1026 is not found, perhaps the SMBus master is not supported.
>>>>> See FAQ.
>>>>>
>>>>> MDS 12/31/04
>>>>
>>>>
>>>>
>>>> Regards
>>>>
>>>> Chan Min Wai
>>>>
>>>>
>>>
>>
>> Following by recently requests about National's PC87431 mBMC device, 
>> please find the following information:
>> 1. The PC87431 is fully IPMI 1.5 compliant device with remote    LAN 
>> manageability support
>> 2. The Host interface of PC87431 is IPMI 1.5/2.0 SSIF (SMBus)
>> 3. The PC87431 supports all mandatory commands of IPMI 1.5
>> 4. System configuration and sensor list can be read using regular 
>> IPMI    SDR commands
>> 5. Specific sensor data can be obtained using IPMI "Get Sensor 
>> Reading"    command
>>
>> More information about PC87431 can be found on:
>> http://www.national.com/pf/PC/PC87431M.html
>>
>> The full PC87431 datasheet can be obtained under NDA.
>>
>> For more information about IPMI specification, please see IPMI 
>> developers web-site:
>> http://developer.intel.com/design/servers/ipmi/index.htm
>>
>> Attached are sample sources of SSIF interface implementation for 
>> PC87431.
>> Sources provided under BSD license agreement.
>>
>>
>>
>>
>>
>>
>>
>



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