2010-11-08 12:20:40     Dual PHY, BF537/BF527, suggestions needed

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2010-11-08 12:20:40     Dual PHY, BF537/BF527, suggestions needed

Tim Shearer (UNITED STATES)

Message: 95646   

 

Hi all,

 

I'm looking to implement a multi-port Ethernet tranceiver for a WAN/LAN gateway application, using the Blackfin's MII interface.

 

Perusing the internets yields a number of choices, mainly involving Micrel parts such as the KSZ8873MLL:    www.micrel.com/_PDF/Ethernet/ksz8873_pb.pdf

  www.micrel.com/page.do?page=/product-info/fastether_sw.jsp

 

If someone could tell me if I'm barking up the wrong tree with this solution, I'd be grateful.  I'm particularly interested in the ability of the existing EMAC driver to support and configure an external switching IC. 

 

If anyone else has done anything similar, and has any recommendations, I'd be grateful.

 

Many thanks,

 

Tim

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2010-11-08 16:06:46     Re: Dual PHY, BF537/BF527, suggestions needed

Robert Cochran (UNITED STATES)

Message: 95647   

 

Have you already looked at the BF518EZ board with the 3-port switch?  I'm asking this since you didn't mention it.  Perhaps you overlooked it.

 

  docs.blackfin.uclinux.org/doku.php?id=hw:boards:bf518f-ezbrd

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2010-11-08 19:47:34     Re: Dual PHY, BF537/BF527, suggestions needed

Mike Frysinger (UNITED STATES)

Message: 95656   

 

as Robert highlighted, the DSA's should work fine with the Blackfin EMAC

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2010-11-09 13:15:02     Re: Dual PHY, BF537/BF527, suggestions needed

Tim Shearer (UNITED STATES)

Message: 95706   

 

Thanks for the reply guys.  I will definitely check out the BF518EZ.  I wasn't aware of any eval boards on the market that had this feature, so I appreciate the suggestion.

 

Regards,

 

Tim

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2010-11-09 19:03:49     Re: Dual PHY, BF537/BF527, suggestions needed

Mike Frysinger (UNITED STATES)

Message: 95716   

 

unfortunately, the switch is in older revs and has been removed since it lacked PTP support.  and the older revs are not for sale.

 

but the u-boot/linux stack has support for it if you want to review how things are done, and the schematics for the old rev is available for reference.

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