[U-Boot] FSL DDR @ 83xx

Kumar Gala galak at kernel.crashing.org
Tue Dec 9 20:04:58 CET 2008


On Dec 9, 2008, at 12:01 PM, Andre Schwarz wrote:

> Jon Loeliger schrieb:
>> On Mon, 2008-12-08 at 18:02 +0100, Andre Schwarz wrote:
>>
>>> Kim,
>>>
>>> I'd like to change my DDR setup code since it looks like my computed
>>> values are not perfectly stable on our 8343 based board.
>>>
>>> This implies using a fake SPD and the related code to set up the  
>>> controller.
>>>
>>> Is the "new" common FSL DDR setup code (cpu/mpc8xxx/ddr/*) stable  
>>> for
>>> 83xx or shall I stick to cpu/mpc83xx/spd_sdram.c for a while ?
>>>
>>
>> The new, common DDR code in use by the FSL boards does not
>> yet cover the 83xx family, though the plan is to eventually
>> do so.
>>
>> Patches in that direction, are, naturally, welcome... :-)
>>
>> jdl
>>
>>
>>
> Is anybody working on this ?
> The spd_sdram code lacks support for 3 bank adress bits and various
> termination schemes which
> are essential for tiny boards with soldered memory.
>
> Of course I could contribute for the 8343.
> But I don't now about the "others" (85xx/86x) in detail and don't want
> to scatter #ifdefs all over the code ...
>
> regards,
> André

I don't believe anyone is currently working on getting the new ddr  
code to be used w/83xx.  Feel free to submit patches that does this  
and we will review them as they are posted.

- k


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