From: Stephan Linz <linz@mazet.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] SMSC91C111 performance...
Date: Thu, 26 Feb 2004 19:20:35 +0100 [thread overview]
Message-ID: <0402261920350J.00467@pcj86> (raw)
In-Reply-To: <r02010100-1032-80CEF306686E11D8BE5000039387ACB6@[10.0.1.1]>
> What is the performance of the driver inside u-boot?
>
>
> Get around up to 2 secs delay to "ping alive" and
Yes, the SMSC91C111 has an very long auto-negotation cycle...
> downloading a 2.5MByte binary with tftp takes up to 7 secs.
Wow, about 3 MBit -- that's good for the Chip. The SMSC91C111 self isn't
fast enough. It has an non performant chip design (there are only 2x2KByte
for FIFO). My latest tests with an PXA255 a/o NIOS + SMSC91C111 @ 32 bit bus
results the same...
Best Regards,
Stephan Linz
next prev parent reply other threads:[~2004-02-26 18:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-26 15:14 [U-Boot-Users] SMSC91C111 performance Richard Klingler
2004-02-26 18:20 ` Stephan Linz [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-02-26 18:22 Richard Klingler
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