From: Stefan Roese <sr@denx.de>
To: benh@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] [POWERPC] AMCC Kilauea (405EX): Disable EMAC loopback mode
Date: Fri, 22 Feb 2008 22:54:51 +0100 [thread overview]
Message-ID: <200802222254.52273.sr@denx.de> (raw)
In-Reply-To: <1203715656.6976.7.camel@pasglop>
On Friday 22 February 2008, Benjamin Herrenschmidt wrote:
> On Fri, 2008-02-22 at 09:32 +0100, Stefan Roese wrote:
> > 405EX(r) has SDR0_MFR[E0CS/E1CS] set after reset. This selects
> > the internal loopback mode. Clear these bits so that both EMACs
> > don't use loopback mode as default.
> >
> > Signed-off-by: Stefan Roese <sr@denx.de>
> > ---
> > I'm not sure if this should be done here in the board platform code,
> > or in the newemac driver or perhaps in some code common for 405EX.
> >
> > Any thoughts on this welcome.
>
> This should be done in EMAC since we also need to force internal
> loopback & clocking when probing the PHY or we might not probe
> it properly (and fail reset) if there is no link.
Yes. Valentines patches are a first step to this.
> I need to work on that.
That would be great. Thanks.
BTW: Any news on the generic phy-lib plans for ibm_newemac?
Best regards,
Stefan
next prev parent reply other threads:[~2008-02-22 21:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-22 8:32 [PATCH] [POWERPC] AMCC Kilauea (405EX): Disable EMAC loopback mode Stefan Roese
2008-02-22 20:36 ` Josh Boyer
2008-02-22 21:49 ` Stefan Roese
2008-02-22 21:27 ` Benjamin Herrenschmidt
2008-02-22 21:54 ` Stefan Roese [this message]
2008-04-21 23:46 ` Benjamin Herrenschmidt
2008-04-22 5:15 ` Stefan Roese
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