From: pavel@denx.de (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 1/2] ARM: socfpga: support suspend to ram
Date: Mon, 25 May 2015 14:41:33 +0200 [thread overview]
Message-ID: <20150525124133.GF9943@amd> (raw)
In-Reply-To: <1432317735-29413-2-git-send-email-atull@opensource.altera.com>
Hi!
> Suspend-to-RAM and EDAC support are mutually exclusive on SOCFPGA
> platforms. CONFIG_SOCFPGA_SUSPEND enables suspend-to-RAM and
> prevents selecting CONFIG_EDAC_ALTERA_MC.
Do we went to have the dependency at the .config time? We would like
to do generic kernels booting on many machines, this kind of breaks
that...
> + /*
> + * This code assumes that the bootloader has already
> + * properly configured the sdram controller:
Which bootloaders can do that?
> + * sdr.ctrlcfg.lowpwreq.selfrfshmask = 3
> + * sdr.ctrlcfg.lowpwrtiming.clkdisablecycles = 8
> + * sdr.ctrlcfg.dramtiming4.selfrfshexit = 512
Would it make sense to configure it in Linux?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
WARNING: multiple messages have this Message-ID (diff)
From: Pavel Machek <pavel-ynQEQJNshbs@public.gmane.org>
To: Alan Tull <atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
Cc: Dinh Nguyen
<dinguyen-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>,
Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Steffen Trumtrar
<s.trumtrar-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Delicious Quinoq
<delicious.quinoa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v4 1/2] ARM: socfpga: support suspend to ram
Date: Mon, 25 May 2015 14:41:33 +0200 [thread overview]
Message-ID: <20150525124133.GF9943@amd> (raw)
In-Reply-To: <1432317735-29413-2-git-send-email-atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
Hi!
> Suspend-to-RAM and EDAC support are mutually exclusive on SOCFPGA
> platforms. CONFIG_SOCFPGA_SUSPEND enables suspend-to-RAM and
> prevents selecting CONFIG_EDAC_ALTERA_MC.
Do we went to have the dependency at the .config time? We would like
to do generic kernels booting on many machines, this kind of breaks
that...
> + /*
> + * This code assumes that the bootloader has already
> + * properly configured the sdram controller:
Which bootloaders can do that?
> + * sdr.ctrlcfg.lowpwreq.selfrfshmask = 3
> + * sdr.ctrlcfg.lowpwrtiming.clkdisablecycles = 8
> + * sdr.ctrlcfg.dramtiming4.selfrfshexit = 512
Would it make sense to configure it in Linux?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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WARNING: multiple messages have this Message-ID (diff)
From: Pavel Machek <pavel@denx.de>
To: Alan Tull <atull@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>,
Rob Herring <robh+dt@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Steffen Trumtrar <s.trumtrar@pengutronix.de>,
Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Russell King <linux@arm.linux.org.uk>,
linux-arm-kernel@lists.infradead.org,
Delicious Quinoq <delicious.quinoa@gmail.com>
Subject: Re: [PATCH v4 1/2] ARM: socfpga: support suspend to ram
Date: Mon, 25 May 2015 14:41:33 +0200 [thread overview]
Message-ID: <20150525124133.GF9943@amd> (raw)
In-Reply-To: <1432317735-29413-2-git-send-email-atull@opensource.altera.com>
Hi!
> Suspend-to-RAM and EDAC support are mutually exclusive on SOCFPGA
> platforms. CONFIG_SOCFPGA_SUSPEND enables suspend-to-RAM and
> prevents selecting CONFIG_EDAC_ALTERA_MC.
Do we went to have the dependency at the .config time? We would like
to do generic kernels booting on many machines, this kind of breaks
that...
> + /*
> + * This code assumes that the bootloader has already
> + * properly configured the sdram controller:
Which bootloaders can do that?
> + * sdr.ctrlcfg.lowpwreq.selfrfshmask = 3
> + * sdr.ctrlcfg.lowpwrtiming.clkdisablecycles = 8
> + * sdr.ctrlcfg.dramtiming4.selfrfshexit = 512
Would it make sense to configure it in Linux?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2015-05-25 12:41 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-22 18:02 [PATCH v4 0/2] socfpga: support suspend to ram Alan Tull
2015-05-22 18:02 ` Alan Tull
2015-05-22 18:02 ` Alan Tull
2015-05-22 18:02 ` [PATCH v4 1/2] ARM: " Alan Tull
2015-05-22 18:02 ` Alan Tull
2015-05-22 18:02 ` Alan Tull
2015-05-25 12:41 ` Pavel Machek [this message]
2015-05-25 12:41 ` Pavel Machek
2015-05-25 12:41 ` Pavel Machek
2015-05-26 21:40 ` atull
2015-05-26 21:40 ` atull
2015-05-26 21:40 ` atull
2015-05-26 21:56 ` Pavel Machek
2015-05-26 21:56 ` Pavel Machek
2015-05-26 21:56 ` Pavel Machek
2015-05-28 20:21 ` atull
2015-05-28 20:21 ` atull
2015-05-28 20:21 ` atull
2015-05-26 13:48 ` Dinh Nguyen
2015-05-26 13:48 ` Dinh Nguyen
2015-05-26 13:48 ` Dinh Nguyen
2015-05-27 20:25 ` atull
2015-05-27 20:25 ` atull
2015-05-27 20:25 ` atull
2015-05-28 15:07 ` Dinh Nguyen
2015-05-28 15:07 ` Dinh Nguyen
2015-05-28 15:07 ` Dinh Nguyen
2015-05-28 20:23 ` atull
2015-05-28 20:23 ` atull
2015-05-28 20:23 ` atull
2015-05-22 18:02 ` [PATCH v4 2/2] ARM: socfpga: dts: add sdram controller dt binding doc Alan Tull
2015-05-22 18:02 ` Alan Tull
2015-05-22 18:02 ` Alan Tull
2015-05-25 12:39 ` Pavel Machek
2015-05-25 12:39 ` Pavel Machek
2015-05-26 21:37 ` atull
2015-05-26 21:37 ` atull
2015-05-26 21:37 ` atull
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