From: jgunthorpe@obsidianresearch.com (Jason Gunthorpe)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/2] ARM: kirkwood: Ensure that kirkwood_ge0[01]_init() finds its clock
Date: Mon, 28 Jan 2013 11:28:18 -0700 [thread overview]
Message-ID: <20130128182818.GC9436@obsidianresearch.com> (raw)
In-Reply-To: <51053F81.6020904@gmail.com>
On Sun, Jan 27, 2013 at 03:53:53PM +0100, Sebastian Hesselbarth wrote:
> I just want Simon to confirm that Kirkwood's gbe is really loosing the
> contents of its MAC address registers during gated clocks, which is from
> a HW point of view very unlikely.
FWIW, there are two block power management controls on the kirkwood
chips, one is documented to a clock gate, and one is documented to a
be a power down. I wouldn't expect the clock gate to have a problem
with the MAC address, but the powerdown I would expect to wipe it..
Other varients might have only the powerdown..
That said, I'm not sure what Linux uses on Kirkwood, it ideally should
be using both, I think.
Jason
next prev parent reply other threads:[~2013-01-28 18:28 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-27 10:40 [PATCH v2 0/2] Do not gate ge0/1 and runit clocks on Kirkwood Simon Baatz
2013-01-27 10:40 ` [PATCH v2 1/2] ARM: kirkwood: Ensure that kirkwood_ge0[01]_init() finds its clock Simon Baatz
2013-01-27 10:52 ` Sebastian Hesselbarth
2013-01-27 11:08 ` Simon Baatz
2013-01-27 11:18 ` Sebastian Hesselbarth
2013-01-27 14:19 ` Sebastian Hesselbarth
2013-01-27 14:46 ` Jason Cooper
2013-01-27 14:53 ` Sebastian Hesselbarth
2013-01-27 15:24 ` Jason Cooper
2013-01-28 22:31 ` Simon Baatz
2013-01-29 0:48 ` Jason Cooper
2013-01-29 19:42 ` Simon Baatz
2013-01-29 20:08 ` Sebastian Hesselbarth
2013-01-29 20:32 ` Jason Cooper
2013-01-29 20:48 ` Sebastian Hesselbarth
2013-01-29 21:23 ` Jason Cooper
2013-01-30 22:43 ` Jason Cooper
2013-01-30 23:05 ` Jason Gunthorpe
2013-01-31 0:29 ` Jason Cooper
2013-01-31 0:39 ` Jason Gunthorpe
2013-01-30 0:03 ` Simon Baatz
2013-01-30 0:51 ` Sebastian Hesselbarth
2013-01-30 4:26 ` Jason Cooper
2013-01-30 8:30 ` Simon Baatz
2013-01-30 10:16 ` Sebastian Hesselbarth
2013-01-30 14:53 ` Simon Baatz
2013-01-30 23:01 ` Jason Cooper
2013-01-30 23:15 ` Jason Gunthorpe
2013-01-31 0:40 ` Jason Cooper
2013-01-30 23:22 ` Sebastian Hesselbarth
2013-01-31 0:32 ` Jason Cooper
2013-01-31 22:26 ` Simon Baatz
2013-01-31 22:44 ` Simon Baatz
2013-01-31 22:49 ` Sebastian Hesselbarth
2013-02-01 0:11 ` Jason Cooper
2013-02-01 0:01 ` Jason Cooper
2013-02-01 0:19 ` Jason Gunthorpe
2013-02-01 6:14 ` Andrew Lunn
2013-02-01 6:46 ` Jason Gunthorpe
2013-02-02 23:04 ` Simon Baatz
2013-02-03 16:45 ` Jason Cooper
2013-01-28 18:28 ` Jason Gunthorpe [this message]
2013-01-29 6:56 ` Andrew Lunn
2013-01-29 17:29 ` Jason Gunthorpe
2013-01-28 18:22 ` Jason Gunthorpe
2013-01-28 19:46 ` Jason Cooper
2013-01-29 19:54 ` Simon Baatz
2013-01-29 21:13 ` Jason Cooper
2013-01-28 20:26 ` Jason Cooper
2013-01-27 10:40 ` [PATCH v2 2/2] clk: mvebu: Do not gate runit clock on Kirkwood Simon Baatz
2013-01-27 10:55 ` Sebastian Hesselbarth
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