From: John Schmoller <jschmoller@xes-inc.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] several problems with ethernet on MCF5445x
Date: Tue, 23 Mar 2010 10:11:06 -0500 [thread overview]
Message-ID: <1269357066.11854.16.camel@johns> (raw)
In-Reply-To: <4BA8E333.24696.1444C53@w.wegner.astro-kom.de>
On Tue, 2010-03-23 at 15:50 +0100, w.wegner at astro-kom.de wrote:
> Dear list,
>
> I am trying to get ethernet to work on my custom MCF54455 board
> and having some trouble.
>
> I have a DP83848J PHY connected in MII mode to each of the FEC0
> and FEC1 ports (seperate MDIO connection). Both PHYs are set to
> address 0x0. *)
Are you sure this is what you want? From the data sheet:
Strapping PHY Address 0 puts the part into Isolate Mode.
When in the MII isolate mode, the DP83848J does not
respond to packet data present at TXD[3:0], TX_EN inputs
and presents a high impedance on the TX_CLK, RX_CLK,
RX_DV, RX_ER, RXD[3:0], COL, and CRS outputs. When
in Isolate mode, the DP83848J will continue to respond to
all management transactions.
John
next prev parent reply other threads:[~2010-03-23 15:11 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-23 14:50 [U-Boot] several problems with ethernet on MCF5445x w.wegner at astro-kom.de
2010-03-23 15:11 ` John Schmoller [this message]
2010-03-23 15:40 ` w.wegner at astro-kom.de
2010-03-23 16:10 ` Liew Tsi Chung-R5AAHP
2010-03-26 13:13 ` w.wegner at astro-kom.de
2010-03-26 14:55 ` w.wegner at astro-kom.de
2010-03-26 15:08 ` w.wegner at astro-kom.de
2010-03-26 16:19 ` Wolfgang Wegner
2010-03-30 17:19 ` [U-Boot] [PATCH] fix lockup in mcfmii/mii_discover_phy() in case communication fails Wolfgang Wegner
2010-03-30 17:19 ` [U-Boot] [PATCH] add CONFIG_SYS_FEC_NO_SHARED_PHY for MCF5445x Wolfgang Wegner
2010-03-30 17:19 ` [U-Boot] [PATCH] add CONFIG_SYS_FEC_FULL_MII " Wolfgang Wegner
2010-03-30 17:24 ` [U-Boot] [PATCH] add CONFIG_SYS_FEC_NO_SHARED_PHY " Liew Tsi Chung-R5AAHP
2010-04-05 5:44 ` [U-Boot] [PATCH] fix lockup in mcfmii/mii_discover_phy() in case communication fails Ben Warren
2010-04-06 8:38 ` w.wegner at astro-kom.de
2010-04-06 9:13 ` [U-Boot] [PATCH v2 RFC] " Wolfgang Wegner
2010-04-06 17:10 ` Ben Warren
2010-04-06 9:15 ` [U-Boot] [PATCH] " w.wegner at astro-kom.de
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