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From: Heiko Schocher <hs@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] 83xx, uec: adjust enet_interface settings on the fly.
Date: Fri, 08 Jan 2010 09:12:29 +0100	[thread overview]
Message-ID: <4B46E8ED.1040008@denx.de> (raw)
In-Reply-To: <D7CCA83BB0796C49BC0BB53B6AB120898BE324@zch01exm21.fsl.freescale.net>

Hello Liu,

Liu Dave-R63238 wrote:
>>> I don't remember why I added the eth_type==GIGA_ETH condition.
>>> If it is possible, please refactor it as Kim.
>> Hmm.. while looking at this code, a question comes in mind:
>> Did this code (eth_type==GIGA_ETH) work correctly?
> 
> Yes, It worked correctly. But later there are lots of change,
> I'm not sure if it is correct right now. 
> 
>> I see there is a switching possible from 1000 to 100 or 10, 
>> but never back to 1000, because the 1000 case did nothing ...?
>> Is this intentionally?
> 
> The code was assuming the initial speed is 1000Mbps, so
> the 1000 case did nothing. 

Hmm.. but what happend, if you connect a 100Mbps, and then
back to the 1000Mpbs?

>> Also uec->uec_info->enet_interface is never updated, which 
>> should be done ... or?
> 
> IIRC, the enet_interface was designed for interface type according
> to board design. So it was placed on uec_info, it is never updated.
> eg: SGMII if board is SGMII connection
>       RGMII if board is RGMII connection...
>       RMII if board is RMII....

Ah, OK, thanks.

bye
Heiko
-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

  reply	other threads:[~2010-01-08  8:12 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-07  8:01 [U-Boot] 83xx, uec: adjust enet_interface settings on the fly Heiko Schocher
2010-01-08  0:59 ` Kim Phillips
2010-01-08  3:11   ` Liu Dave-R63238
2010-01-08  7:37     ` Heiko Schocher
2010-01-08  7:52       ` Liu Dave-R63238
2010-01-08  8:12         ` Heiko Schocher [this message]
2010-01-08  8:14           ` Liu Dave-R63238
2010-01-19  6:49 ` Andy Fleming
2010-01-19  8:42   ` Heiko Schocher
2010-01-20  8:04   ` [U-Boot] 83xx, uec: split enet_interface in two variables, was: " Heiko Schocher
2010-02-01  5:25     ` Ben Warren

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