From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
To: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
"tiejun.chen" <tiejun.chen@windriver.com>,
Lennert Buytenhek <buytenh@wantstofly.org>,
linuxppc-dev@lists.ozlabs.org, David Miller <davem@davemloft.net>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 06/12] ARM: dove: add gigabit ethernet and mvmdio device tree nodes
Date: Wed, 22 May 2013 20:44:20 +0200 [thread overview]
Message-ID: <519D1204.4090701@gmail.com> (raw)
In-Reply-To: <20130522174815.GI31290@titan.lakedaemon.net>
On 05/22/2013 07:48 PM, Jason Cooper wrote:
> On Wed, May 22, 2013 at 07:42:36PM +0200, Sebastian Hesselbarth wrote:
>> Hmm, maybe a little bit too early. While restoring the MAC address now
>> works, another bug arises which I guess is related with phy setup
>> and aneg.
>>
>> Will investigate and update patch set accordingly.
>
> Cool, chances are, we should be able to take that patch in by itself for
> this merge window...
Which patch do you mean? The local-mac-address workaround will only be
available for DT mv643xx_eth because it uses the DT node to store the
MAC.
Anyway, I found the bit that caused the other issue. It is the
Clk125_Bypass_En bit in PORT_SERIAL_CONTROL1 register. What bothers me
about it is:
- Only Dove and Kirkwood have the bit, MV78x00 doesn't have it, Orion5x
doesn't have the register at all. With ppc mv64x60 I can only guess,
but think it is like in Orion5x.
- Reset value of that bit should be 0, but after gating clock on
Kirkwood it is set to 1 causing wrong port clock to be selected.
Also Thomas Petazzoni confirmed that it is set after reset so
either FS is wrong about it or BootROM messes with it.
- Kirkwood and Dove FS tell me that port link must be down when you
change the bit.
As I can't be sure about how mv643xx_eth will behave on other platforms
except Kirkwood and Dove when writing that register, I tend to force
that bit to zero in the driver but only for those two by #ifdefs.
Sebastian
next prev parent reply other threads:[~2013-05-22 18:44 UTC|newest]
Thread overview: 93+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1367854420-8006-1-git-send-email-sebastian.hesselbarth@gmail.com>
2013-05-21 16:41 ` [PATCH v4 00/12] net: mv643xx_eth DT support and fixes Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 01/12] net: mv643xx_eth: use phy_disconnect instead of phy_detach Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 02/12] net: mv643xx_eth: use managed devm_ioremap for port registers Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 03/12] net: mv643xx_eth: add phy_node to platform_data struct Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 04/12] net: mv643xx_eth: use of_phy_connect if phy_node present Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 05/12] net: mv643xx_eth: add DT parsing support Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 06/12] ARM: dove: add gigabit ethernet and mvmdio device tree nodes Sebastian Hesselbarth
2013-05-21 17:48 ` Andrew Lunn
2013-05-22 9:43 ` Sebastian Hesselbarth
2013-05-22 10:04 ` tiejun.chen
2013-05-22 10:13 ` Sebastian Hesselbarth
2013-05-22 13:10 ` Jason Cooper
2013-05-22 16:59 ` Jason Gunthorpe
2013-05-22 17:01 ` Jason Cooper
2013-05-22 17:32 ` Sebastian Hesselbarth
2013-05-22 17:35 ` Jason Cooper
2013-05-22 17:42 ` Sebastian Hesselbarth
2013-05-22 17:48 ` Jason Cooper
2013-05-22 18:44 ` Sebastian Hesselbarth [this message]
2013-05-22 18:49 ` Jason Cooper
2013-05-22 18:55 ` Sebastian Hesselbarth
2013-05-22 18:58 ` Jason Cooper
2013-05-22 19:52 ` Sebastian Hesselbarth
2013-05-22 18:24 ` Jason Gunthorpe
2013-05-22 18:51 ` Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 07/12] ARM: kirkwood: " Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 08/12] ARM: orion5x: " Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 09/12] ARM: dove: remove legacy mv643xx_eth setup Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 10/12] ARM: kirkwood: remove legacy clk alias for mv643xx_eth Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 11/12] ARM: kirkwood: remove redundant DT board files Sebastian Hesselbarth
2013-05-22 20:36 ` Simon Baatz
2013-05-22 20:55 ` Sebastian Hesselbarth
2013-05-22 21:02 ` Jason Cooper
2013-05-22 21:17 ` Sebastian Hesselbarth
2013-05-21 16:41 ` [PATCH v4 12/12] ARM: orion5x: remove legacy mv643xx_eth board setup Sebastian Hesselbarth
2013-05-22 16:16 ` [PATCH v4 00/12] net: mv643xx_eth DT support and fixes Andrew Lunn
2013-05-22 20:04 ` [PATCH 1/2] ARM: kirkwood: proper retain MAC address workaround on DT ethernet Sebastian Hesselbarth
2013-05-22 20:04 ` [PATCH 2/2] net: mv643xx_eth: proper initialization for Kirkwood SoCs Sebastian Hesselbarth
2013-05-22 20:16 ` Jason Gunthorpe
2013-05-22 21:02 ` Sebastian Hesselbarth
2013-05-23 16:01 ` Jason Cooper
2013-05-23 17:11 ` Jason Gunthorpe
2013-05-23 17:23 ` Jason Cooper
2013-05-23 17:53 ` Jason Gunthorpe
2013-05-23 18:40 ` Jason Cooper
2013-05-23 19:01 ` Jason Gunthorpe
2013-05-24 16:46 ` Jason Cooper
2013-05-24 16:53 ` Andrew Lunn
2013-05-24 17:03 ` Jason Cooper
2013-05-24 17:33 ` Jason Gunthorpe
2013-05-28 18:02 ` Jason Cooper
2013-05-23 22:40 ` Sebastian Hesselbarth
2013-05-24 11:03 ` Linus Walleij
2013-05-24 17:01 ` Jason Cooper
2013-05-24 17:13 ` Russell King - ARM Linux
2013-05-24 17:25 ` Sebastian Hesselbarth
2013-05-24 16:53 ` Jason Cooper
2013-05-26 4:04 ` [PATCH 1/2] ARM: kirkwood: proper retain MAC address workaround on DT ethernet David Miller
2013-05-26 20:06 ` Sebastian Hesselbarth
2013-05-27 9:23 ` David Miller
2013-05-27 9:39 ` Benjamin Herrenschmidt
2013-05-27 10:24 ` Sebastian Hesselbarth
2013-05-27 11:50 ` Benjamin Herrenschmidt
2013-05-27 12:47 ` Arnd Bergmann
2013-05-27 21:50 ` Benjamin Herrenschmidt
2013-05-27 22:12 ` Sebastian Hesselbarth
2013-05-27 22:17 ` David Miller
2013-05-27 20:18 ` David Miller
2013-05-27 21:48 ` Benjamin Herrenschmidt
2013-05-27 9:38 ` Benjamin Herrenschmidt
2013-05-29 19:32 ` [PATCH v5 00/13] net: mv643xx_eth DT support and fixes Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 01/13] net: mv643xx_eth: use phy_disconnect instead of phy_detach Sebastian Hesselbarth
2013-05-29 20:00 ` Jason Cooper
2013-05-29 19:32 ` [PATCH v5 02/13] net: mv643xx_eth: use managed devm_ioremap for port registers Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 03/13] net: mv643xx_eth: add phy_node to platform_data struct Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 04/13] net: mv643xx_eth: use of_phy_connect if phy_node present Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 05/13] net: mv643xx_eth: proper initialization for Kirkwood SoCs Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 06/13] net: mv643xx_eth: add DT parsing support Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 07/13] ARM: dove: add gigabit ethernet and mvmdio device tree nodes Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 08/13] ARM: kirkwood: " Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 09/13] ARM: orion5x: " Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 10/13] ARM: dove: remove legacy mv643xx_eth setup Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 11/13] ARM: kirkwood: remove legacy clk alias for mv643xx_eth Sebastian Hesselbarth
2013-05-29 19:32 ` [PATCH v5 12/13] ARM: kirkwood: remove redundant DT board files Sebastian Hesselbarth
2013-05-30 9:06 ` Arnaud Ebalard
2013-05-30 9:08 ` Sebastian Hesselbarth
2013-05-30 19:37 ` Jason Cooper
2013-05-30 22:28 ` Arnaud Ebalard
2013-05-31 11:54 ` Jason Cooper
2013-05-29 19:32 ` [PATCH v5 13/13] ARM: orion5x: remove legacy mv643xx_eth board setup Sebastian Hesselbarth
2013-05-31 0:55 ` [PATCH v5 00/13] net: mv643xx_eth DT support and fixes David Miller
2013-05-31 6:28 ` Sebastian Hesselbarth
2013-05-31 9:32 ` David Miller
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