From: Grant Likely <grant.likely@secretlab.ca> To: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: linux-kernel@vger.kernel.org, sodaville@linutronix.de, devicetree-discuss@lists.ozlabs.org, x86@kernel.org Subject: Re: [PATCH TIP 02/14] x86: Add device tree support Date: Wed, 16 Feb 2011 14:31:26 -0700 [thread overview] Message-ID: <20110216213126.GC22837@angua.secretlab.ca> (raw) In-Reply-To: <1295843342-1122-3-git-send-email-bigeasy@linutronix.de> On Mon, Jan 24, 2011 at 09:58:50AM +0530, Sebastian Andrzej Siewior wrote: > This patch adds minimal support for device tree support on x86. It will > be passed to the kernel via setup_data which requires atleast boot > protocol 2.09. > Memory size, restricted memory regions, boot arguments are gathered the > traditional way so things like cmd_line are just here to let the code > compile. > The current plan is use the device tree as an extension and to gather > informations from it which can not be enumerated and have to be > hardcoded otherwise. This includes things like > - which devices are on this I2C/ SPI bus? > - how are the interrupts wired to IO APIC? > - where could my hpet be? > > Cc: devicetree-discuss@lists.ozlabs.org > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> > Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> > --- [...] > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index d5ed94d..5d21095 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -297,6 +297,13 @@ config X86_BIGSMP > ---help--- > This option is needed for the systems that have more than 8 CPUs > > +config X86_OF > + bool "Support for device tree" > + select OF > + select OF_EARLY_FLATTREE > + ---help--- > + Device tree support on X86. > + On ARM and MIPS, this is called 'config USE_OF'. It would be nice to have some commonality. Maybe I should move the user-visible option to drivers/of/Kconfig. Or perhaps I should just make CONFIG_OF itself user visible. thoughts? g.
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From: Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org> To: Sebastian Andrzej Siewior <bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org> Cc: sodaville-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org, devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Subject: Re: [PATCH TIP 02/14] x86: Add device tree support Date: Wed, 16 Feb 2011 14:31:26 -0700 [thread overview] Message-ID: <20110216213126.GC22837@angua.secretlab.ca> (raw) In-Reply-To: <1295843342-1122-3-git-send-email-bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org> On Mon, Jan 24, 2011 at 09:58:50AM +0530, Sebastian Andrzej Siewior wrote: > This patch adds minimal support for device tree support on x86. It will > be passed to the kernel via setup_data which requires atleast boot > protocol 2.09. > Memory size, restricted memory regions, boot arguments are gathered the > traditional way so things like cmd_line are just here to let the code > compile. > The current plan is use the device tree as an extension and to gather > informations from it which can not be enumerated and have to be > hardcoded otherwise. This includes things like > - which devices are on this I2C/ SPI bus? > - how are the interrupts wired to IO APIC? > - where could my hpet be? > > Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org > Signed-off-by: Sebastian Andrzej Siewior <bigeasy-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org> > Signed-off-by: Dirk Brandewie <dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> > --- [...] > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig > index d5ed94d..5d21095 100644 > --- a/arch/x86/Kconfig > +++ b/arch/x86/Kconfig > @@ -297,6 +297,13 @@ config X86_BIGSMP > ---help--- > This option is needed for the systems that have more than 8 CPUs > > +config X86_OF > + bool "Support for device tree" > + select OF > + select OF_EARLY_FLATTREE > + ---help--- > + Device tree support on X86. > + On ARM and MIPS, this is called 'config USE_OF'. It would be nice to have some commonality. Maybe I should move the user-visible option to drivers/of/Kconfig. Or perhaps I should just make CONFIG_OF itself user visible. thoughts? g.
next prev parent reply other threads:[~2011-02-16 21:31 UTC|newest] Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-01-24 4:28 Device tree on x86, part v3 Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-01-24 4:28 ` [PATCH TIP 01/14] x86/e820: remove conditional early mapping in parse_e820_ext Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-02-03 20:57 ` Grant Likely 2011-01-24 4:28 ` [PATCH TIP 02/14] x86: Add device tree support Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-01-24 4:34 ` Sebastian Andrzej Siewior 2011-01-24 4:34 ` Sebastian Andrzej Siewior 2011-02-16 21:27 ` Grant Likely 2011-02-16 21:27 ` Grant Likely 2011-02-17 11:05 ` [sodaville] " Sebastian Andrzej Siewior 2011-02-17 11:05 ` Sebastian Andrzej Siewior 2011-02-16 21:26 ` Grant Likely 2011-02-17 11:03 ` Sebastian Andrzej Siewior 2011-02-17 11:03 ` Sebastian Andrzej Siewior 2011-02-16 21:31 ` Grant Likely [this message] 2011-02-16 21:31 ` Grant Likely 2011-02-17 11:31 ` [sodaville] " Sebastian Andrzej Siewior 2011-02-17 11:31 ` Sebastian Andrzej Siewior 2011-02-17 17:02 ` Grant Likely 2011-01-24 4:28 ` [PATCH TIP 03/14] x86/dtb: Add a device tree for CE4100 Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-01-27 5:00 ` David Gibson 2011-01-27 5:00 ` David Gibson 2011-01-27 9:11 ` Sebastian Andrzej Siewior 2011-01-27 9:11 ` Sebastian Andrzej Siewior 2011-02-03 20:59 ` Grant Likely 2011-02-03 21:32 ` Mitch Bradley 2011-02-03 21:32 ` Mitch Bradley 2011-02-04 9:40 ` Sebastian Andrzej Siewior 2011-02-04 9:40 ` Sebastian Andrzej Siewior 2011-02-02 18:58 ` [PATCH TIP v2 " Sebastian Andrzej Siewior 2011-02-02 18:58 ` Sebastian Andrzej Siewior 2011-02-03 21:07 ` Grant Likely 2011-02-03 21:07 ` Grant Likely 2011-02-04 10:06 ` Sebastian Andrzej Siewior 2011-02-04 10:06 ` Sebastian Andrzej Siewior 2011-02-16 21:44 ` Grant Likely 2011-02-16 21:44 ` Grant Likely 2011-02-22 11:21 ` [sodaville] " Sebastian Andrzej Siewior 2011-02-22 11:21 ` Sebastian Andrzej Siewior 2011-01-24 4:28 ` [PATCH TIP 04/14] x86/dtb: add irq domain abstraction Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-01-24 4:28 ` [PATCH TIP 05/14] x86/dtb: add early parsing of APIC and IO APIC Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-02-16 21:47 ` Grant Likely 2011-02-16 21:47 ` Grant Likely 2011-01-24 4:28 ` [PATCH TIP 06/14] x86/dtb: add support hpet Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-01-24 4:28 ` [PATCH OF 07/14] of: move of_irq_map_pci() into generic code Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-02-10 13:57 ` Michal Simek 2011-02-16 21:53 ` Grant Likely 2011-02-16 21:53 ` Grant Likely 2011-02-17 7:49 ` Michal Simek 2011-02-17 7:49 ` Michal Simek 2011-02-17 7:49 ` Michal Simek 2011-01-24 4:28 ` [PATCH TIP 08/14] x86/dtb: add support for PCI devices backed by dtb nodes Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-02-16 21:59 ` Grant Likely 2011-02-16 21:59 ` Grant Likely 2011-02-22 11:21 ` [sodaville] " Sebastian Andrzej Siewior 2011-02-22 11:21 ` Sebastian Andrzej Siewior 2011-01-24 4:28 ` [PATCH TIP 09/14] x86/dtb: Add generic bus probe Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-02-04 10:21 ` [PATCH v2 " Sebastian Andrzej Siewior 2011-02-04 10:21 ` Sebastian Andrzej Siewior 2011-02-16 22:04 ` Grant Likely 2011-02-16 22:04 ` Grant Likely 2011-01-24 4:28 ` [PATCH TIP 10/14] x86/ioapic: Add OF bindings for IO-APIC Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-02-16 22:04 ` Grant Likely 2011-01-24 4:28 ` [PATCH TIP 11/14] x86/ce4100: use OF for ioapic Sebastian Andrzej Siewior 2011-01-24 4:28 ` Sebastian Andrzej Siewior 2011-01-24 4:29 ` [PATCH OF 12/14] x86/rtc: don't register rtc if we the DT blob Sebastian Andrzej Siewior 2011-01-24 4:29 ` Sebastian Andrzej Siewior 2011-02-16 22:08 ` Grant Likely 2011-02-16 22:08 ` Grant Likely 2011-02-16 22:09 ` Grant Likely 2011-02-16 22:09 ` Grant Likely 2011-02-17 13:13 ` [sodaville] " Sebastian Andrzej Siewior 2011-02-17 13:13 ` Sebastian Andrzej Siewior 2011-01-24 4:29 ` [PATCH OF 13/14] rtc/cmos: add OF bindings Sebastian Andrzej Siewior 2011-01-24 4:29 ` Sebastian Andrzej Siewior 2011-01-24 4:38 ` Sebastian Andrzej Siewior 2011-01-24 4:38 ` Sebastian Andrzej Siewior 2011-02-16 22:11 ` Grant Likely 2011-02-16 22:11 ` Grant Likely 2011-02-17 13:26 ` [sodaville] " Sebastian Andrzej Siewior 2011-02-17 13:26 ` Sebastian Andrzej Siewior 2011-02-17 16:46 ` Grant Likely 2011-01-24 4:29 ` [PATCH TIP 14/14] x86/pci: remove warning Sebastian Andrzej Siewior 2011-01-24 4:29 ` Sebastian Andrzej Siewior
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