From: Andrew Lunn <andrew@lunn.ch>
To: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
Andrew Lunn <andrew@lunn.ch>, Jason Cooper <jason@lakedaemon.net>,
Arnd Bergmann <arnd@arndb.de>, Wolfram Sang <wsa@the-dreams.de>,
stable@vger.kernel.org, linux-i2c@vger.kernel.org,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Gregory CLEMENT <gregory.clement@free-electrons.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 1/2] ARM: mvebu: Add support to get the ID and the revision of a SoC
Date: Mon, 6 Jan 2014 01:17:09 +0100 [thread overview]
Message-ID: <20140106001709.GD4093@lunn.ch> (raw)
In-Reply-To: <52C9F32D.5080007@gmail.com>
> >>Does that power down really disable reading from PCIe controller
> >>registers or is it just PHY power down?
> >
> >I haven't experimented with it, but every block that has a clock gate
> >has a power down, so I doubt it is just a phy power down.
>
> Ok, I see. But it isn't documented in the public FS, is it? If there is
> an extra powerdown register for each ip block, I guess it will also
> break reading from its registers.
Hi Sebastian
The public Kirkwood FS has a memory power management control register,
Offset 0x20118. It is unclear what it actually does, and if you can
still access registers when it is off. We would have to poke it and
see.
Andrew
next prev parent reply other threads:[~2014-01-06 0:17 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-03 9:59 [PATCH v2 0/2] Fix i2c bus hang on A0 version of the Armada XP SoCs Gregory CLEMENT
[not found] ` <1388743185-24822-1-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-03 9:59 ` [PATCH v2 1/2] ARM: mvebu: Add support to get the ID and the revision of a SoC Gregory CLEMENT
2014-01-03 14:47 ` Andrew Lunn
2014-01-03 14:51 ` Gregory CLEMENT
[not found] ` <52C6CE7E.5010800-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-03 15:13 ` Gregory CLEMENT
2014-01-03 16:41 ` Andrew Lunn
2014-01-03 19:30 ` Gregory CLEMENT
[not found] ` <1388743185-24822-2-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-03 18:48 ` Thomas Petazzoni
2014-01-03 19:25 ` Gregory CLEMENT
2014-01-03 18:59 ` Jason Gunthorpe
2014-01-03 19:35 ` Gregory CLEMENT
2014-01-05 14:25 ` Arnd Bergmann
2014-01-05 15:40 ` Andrew Lunn
[not found] ` <20140105154023.GA2048-g2DYL2Zd6BY@public.gmane.org>
2014-01-05 17:27 ` Jason Gunthorpe
[not found] ` <20140105172756.GA11280-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2014-01-05 17:37 ` Sebastian Hesselbarth
2014-01-05 23:07 ` Jason Gunthorpe
2014-01-05 23:12 ` Sebastian Hesselbarth
[not found] ` <52C9E6D0.3000406-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-01-05 23:40 ` Jason Gunthorpe
2014-01-06 0:05 ` Sebastian Hesselbarth
2014-01-06 0:17 ` Andrew Lunn [this message]
[not found] ` <20140106001709.GD4093-g2DYL2Zd6BY@public.gmane.org>
2014-01-06 9:55 ` Gregory CLEMENT
2014-01-06 10:10 ` Gregory CLEMENT
2014-01-05 19:17 ` Arnd Bergmann
[not found] ` <201401052017.10982.arnd-r2nGTMty4D4@public.gmane.org>
2014-01-05 23:51 ` Andrew Lunn
2014-01-06 15:37 ` Arnd Bergmann
[not found] ` <201401061637.28194.arnd-r2nGTMty4D4@public.gmane.org>
2014-01-06 16:24 ` Andrew Lunn
[not found] ` <20140106162442.GB13111-g2DYL2Zd6BY@public.gmane.org>
2014-01-07 14:41 ` Arnd Bergmann
2014-01-06 10:28 ` Gregory CLEMENT
2014-01-03 9:59 ` [PATCH v2 2/2] i2c: mv64xxx: Fix bus hang on A0 version of the Armada XP SoCs Gregory CLEMENT
[not found] ` <1388743185-24822-3-git-send-email-gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-03 12:20 ` Gregory CLEMENT
2014-01-03 18:49 ` Thomas Petazzoni
2014-01-03 19:31 ` Gregory CLEMENT
2014-01-05 14:33 ` Arnd Bergmann
[not found] ` <201401051533.58931.arnd-r2nGTMty4D4@public.gmane.org>
2014-01-06 9:09 ` Gregory CLEMENT
[not found] ` <52CA72BF.10604-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-01-07 9:03 ` Arnd Bergmann
[not found] ` <201401071003.31309.arnd-r2nGTMty4D4@public.gmane.org>
2014-01-07 13:17 ` Gregory CLEMENT
2014-01-07 20:50 ` Arnd Bergmann
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