[U-Boot] NET: SDP3430: trouble with shifting from LAN9C916 to SMC91XX driver

[Ben Warren <biggerbadderben@gmail.com>]

Nishanth Menon wrote:
> On Wed, Oct 14, 2009 at 2:00 PM, Ben Warren <biggerbadderben@gmail.com> wrote:
> [...]
>   
>> The SMC911x chips all contain the magic value 0x87654321 @ offset 0x64.
>> Your board has something else there (it's obviously not an endianness
>> issue, so ignore the error message text).  I think you need to learn
>> more about your board, in particular which SMCS chip you're using, which
>> data width and where it's located in memory.  This is a simple
>> memory-mapped device, and once you find out where it's located, it
>> should 'just work'
>>
>> Here's a datasheet for reference.  See page 68 for the memory map.
>>
>> http://www.smsc.com/media/Downloads_Public/Data_Sheets/9116.pdf
>>     
>
> 9116 seems to use memory mapped regs, while 91c96 [1] page 39 shows it
> to use banked register access. So unfortunately, SMC911X would not
> support this chip as I cannot even see the banked registers in
> smc911x.[ch]. so unfortuantely, I cant switch to SMC911X driver and
> will have to wait till lan91c96.c becomes NET_MULTI to be able to
> remove the warning in sdp3430 build.
>
>   
I guess I misunderstood in thinking that you'd switched chips on the 
board design.
> In fact, I think the following boards use the legacy LAN91C96 driver:
> include/configs/apollon.h
> include/configs/assabet.h
> include/configs/B2.h
> include/configs/gcplus.h
> include/configs/lubbock.h
> include/configs/omap1510inn.h
> include/configs/omap1610h2.h
> include/configs/omap1610inn.h
> include/configs/omap2420h4.h
> include/configs/omap5912osk.h
> include/configs/omap730p2.h
> to confirm a non ti board which uses this legacy chip,  I tried
> building B2, and yep, I see the same warning which was plaguing me
> :(..
>
> Do let me know if there are alternatives available.
>
>   
The alternative that most immediately jumps to mind is for you to 
convert the LAN91C96 driver to NET_MULTI :)  It's pretty easy to do and 
would help the "community" in a big way.
> Regards,
> Nishanth Menon
>
> Ref:
> [1] http://www.embeddedsys.com/subpages/resources/images/documents/LAN91C96_datasheet.pdf
>   
regards,
Ben