[MinnowBoard] Purpose of EEPROM

John Hawley john.hawley at intel.com
Thu Aug 13 15:43:31 UTC 2015


With the obvious caveat, that if you are using exactly the same memory
we are using with the same CPUs we are using, then you'll need to
populate the EEPROM with your SPD data for your memory.  In all
likelihood you'll want to populate the EEPROM with your SPD data to be sure.

Speaking to the SMBus, that may just come down to the Linux driver not
having SMBus support on the Baytrail CPU, which is why you might be
having problems.

- John

On 08/12/2015 09:43 PM, Grigory V. Korotov wrote:
> Hi. This is SPD. It don't need to be programmed. All necessary parameters hardcoded in firmware.  
> 
> 
> 
>> 13 авг. 2015 г., в 1:41, David Scully <dscully at sbimagingsystems.com> написал(а):
>>
>> Hello,
>>
>> I'm currently looking to build a custom board based on the Minnowboard Max
>> design. One of the things I've noticed is that a 2K EEPROM is attached to
>> the SMBus (U33).
>>
>> How is this EEPROM used on the Minnowboard? Is any of the information
>> contained in the device required for booting? If so, is any of the factory
>> programming procedure publicly available?
>>
>> I was attempting to dump the contents from userspace eeprog or even probing
>> the device with i2cdetect, but I'm having trouble probing the SMBus at all
>> (Ubuntu 14.04).
>>
>> Thanks,
>> David
>>
>>
>>
>> --
>> View this message in context: http://minnowboard.57273.x6.nabble.com/Purpose-of-EEPROM-tp1823.html
>> Sent from the MinnowBoard mailing list archive at Nabble.com.
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