>
>
> On Tue, 02 Jun 2009 18:00:53 +0200, Stefan Reinauer <[email protected]>
> wrote:
>
>> On 02.06.2009 17:13 Uhr, Joseph Smith wrote:
>>
>>> Hello,
>>> Was anyone aware we are doing the do_ram_command() wrong on the i8xx
>>> nothbridges?
>>> We are sending the ram commands to all memory and doing our dummy reads
>>>
>> at
>>
>>> the end.
>>> I just found an Intel doc that says we are supposed to do all the ram
>>> commands to each row of memory.
>>>
>>>
>> ...
>>
>>> I will work on a patch for the i830, we should probibly fix this on the
>>> other Intle northbridges.
>>>
>>>
>> Check the i945 code for an example on how to do it... older chipsets
>> might/might not be different...
>>
>>
> Would it be different for SDRAM vs DDR ?
>
>
You need a couple more steps (different MRS commands etc) for DDR, but
the loop itself is basically the same.
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