Re: Reading SPD on Intel Patsburg on Supermicro X9SRG-F board

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On 29 Jan 2014, at 11:48, Alun Evans <alun@xxxxxxxxxxxxx> wrote:

> Thanks for the responses everyone, inline,
> 
> On 29 Jan 2014, at 10:25, Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> 
>> On Wed, Jan 29, 2014 at 05:42:24PM +0100, Jean Delvare wrote:
>>> Hi Alun,
>>> <snip>
>> 
>>> Please ask Supermicro about it.
> 
> I have put a request in… We’ll see if I get a response.
> 
>>> If the memory slots are behind an I2C
>>> multiplexer, ask them if the multiplexer is I2C-based or GPIO-based. If
>>> I2C-based, ask for the multiplexer type and address. If GPIO-based, ask
>>> for the chip name and pin numbers for the GPIOs. In both case, please
>>> ask which GPIO combinations map to which memory slots.

I inlined the above hunk with my question, and the first response was:

> Received feedback; The memory address does not use mux.  It is hardware defined by Intel.

So I went and clarified I was not talking about the DDR physical address setup by the memory reference code, and I got:

> Per our engineer; There is no hardware connecting to DIMM.

I’m not sure I’ve found the right help here...


A.

-- 
Alun Evans

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