public inbox for netdev@vger.kernel.org 
 help / color / mirror / Atom feed

From: Michael Williamson <michael.williamson@criticallink•com>
To: Kevin Hilman <khilman@deeprootsystems•com>
Cc: Cyril Chemparathy <cyril@ti•com>,
	tony@atomide•com, netdev@vger•kernel.org,
	davinci-linux-open-source@linux•davincidsp.com,
	linux-omap@vger•kernel.org, davem@davemloft•net
Subject: Re: [PATCH v3 00/10] split out emac cpdma and mdio for reuse
Date: Tue, 07 Sep 2010 22:22:33 -0400	[thread overview]
Message-ID: <4C86F369.6040906@criticallink.com> (raw)
In-Reply-To: <871v95f2xv.fsf@deeprootsystems.com>

On 09/07/2010 09:18 PM, Kevin Hilman wrote:
> Cyril Chemparathy <cyril@ti•com> writes:
> 
>> Davinci's EMAC device has an in-built MDIO controller and a CPDMA engine.
>> These hardware modules are not restricted to EMAC device alone.  For example,
>> CPSW3G (3-port gigabit ethernet switch) hardware uses these very same modules
>> internally.  This patch series separates out EMAC's MDIO and CPDMA
>> functionality, allowing these individual pieces to be reused across TI
>> hardware.  
> 
> OK, queuing this series for 2.6.37 in davinci-next.
> 

So I just pulled this to test it out on a da850 based board (mitydspl138), and I'm having
some problems.  I'm hoping it's just operator error.

I have a TI TLK100PHP PHY at address 0x3.  The boot log shows:

[snip]
davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
davinci_mdio davinci_mdio.0: detected phy mask fffffff7
davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[3]: device 0:03, driver unknown
[snip]

and then in the init scripts, following udev population I get a 
"Configuring network interfaces... "

and the boot process just hangs.

I went back and did a menuconfig, I didn't see an option for TI PHY support, but
shouldn't there be a "generic" PHY driver that defaults if one isn't matched?  I 
do have TI DaVinci EMAC/MDIO/CPDMA support enabled under the Ethernet (10 or 100 Mbit).

Anyway, I've only looked at this for about 15 minutes, and I was hoping anyone might 
point out something obvious.  If there are hints anyone might have for debugging, I'd
appreciate them as well.  Or, if anyone has tested this with a da850 evm, that would 
point me to a problem in the board file.

Thanks for any insight.

-Mike

next prev parent reply	other threads:[~2010-09-08  2:22 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-07 20:25 [PATCH v3 00/10] split out emac cpdma and mdio for reuse Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 01/10] net: davinci_emac: separate out davinci mdio Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 02/10] davinci: add mdio platform devices Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 03/10] omap: " Cyril Chemparathy
2010-09-08  1:00   ` Tony Lindgren
2010-09-07 20:25 ` [PATCH v3 04/10] net: davinci_emac: switch to new mdio Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 05/10] davinci: cleanup unused davinci mdio arch code Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 06/10] omap: " Cyril Chemparathy
2010-09-08  1:00   ` Tony Lindgren
2010-09-07 20:25 ` [PATCH v3 07/10] net: davinci_emac: cleanup unused mdio emac code Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 08/10] net: davinci_emac: separate out cpdma code Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 09/10] net: davinci_emac: switch to new cpdma layer Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 10/10] net: davinci_emac: cleanup unused cpdma code Cyril Chemparathy
2010-09-08  1:18 ` [PATCH v3 00/10] split out emac cpdma and mdio for reuse Kevin Hilman
2010-09-08  2:22   ` Michael Williamson [this message]
2010-09-08 21:59     ` Cyril Chemparathy
2010-09-09  0:47       ` Michael Williamson
2010-09-09 18:43         ` Michael Williamson
2010-09-09 19:51           ` Cyril Chemparathy
2010-09-09 21:24             ` Cyril Chemparathy
2010-09-09 21:45               ` Michael Williamson
2010-09-09 21:25             ` Michael Williamson
2010-09-10 15:23               ` Caglar Akyuz
2010-09-11  8:54                 ` Caglar Akyuz
2010-09-13 14:09                   ` Cyril Chemparathy
2010-09-13 15:46                     ` Cyril Chemparathy
2010-09-13 17:51                     ` Caglar Akyuz
2010-09-10 22:59               ` Cyril Chemparathy
2010-09-11 13:14                 ` Michael Williamson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4C86F369.6040906@criticallink.com \
    --to=michael.williamson@criticallink$(echo .)com \
    --cc=cyril@ti$(echo .)com \
    --cc=davem@davemloft$(echo .)net \
    --cc=davinci-linux-open-source@linux$(echo .)davincidsp.com \
    --cc=khilman@deeprootsystems$(echo .)com \
    --cc=linux-omap@vger$(echo .)kernel.org \
    --cc=netdev@vger$(echo .)kernel.org \
    --cc=tony@atomide$(echo .)com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox