From: Eric Anholt <eric@anholt.net>
To: Arnd Bergmann <arnd@arndb.de>, Alexander Aring <alex.aring@gmail.com>
Cc: linux-rpi-kernel@lists.infradead.org,
Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Florian Fainelli <f.fainelli@gmail.com>,
Jason Cooper <jason@lakedaemon.net>,
Scott Branden <sbranden@broadcom.com>,
Marc Zyngier <marc.zyngier@arm.com>, Ray Jui <rjui@broadcom.com>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
bcm-kernel-feedback-list@broadcom.com,
Kumar Gala <galak@codeaurora.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 0/8] Raspberry Pi 2 support.
Date: Thu, 24 Dec 2015 16:01:40 -0800 [thread overview]
Message-ID: <87lh8jqtuj.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <201512222223.52449.arnd@arndb.de>
[-- Attachment #1: Type: text/plain, Size: 675 bytes --]
Arnd Bergmann <arnd@arndb.de> writes:
> On Tuesday 22 December 2015, Alexander Aring wrote:
>> Later while booting the kernel hangs forever, the solution on my side
>> was to enable:
>>
>> CONFIG_HAVE_ARM_ARCH_TIMER
>>
>> I think this doesn't use the BCM2835 timer anymore and some cortex-a7
>> related "generic timer", or?
>
> Right, but I don't see how that relates to the irqchip. Is the BCM2835 timer
> connected to a secondary irqchip, while the arch timer connects to the primary GIC?
The 2835 timer is a "peripheral", and connects to the second level
irqchip, while the arm arch timer can give us per-cpu interrupts in the
first level controller.
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 818 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: Eric Anholt <eric@anholt.net>
To: Arnd Bergmann <arnd@arndb.de>, Alexander Aring <alex.aring@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org,
Florian Fainelli <f.fainelli@gmail.com>,
Jason Cooper <jason@lakedaemon.net>,
Scott Branden <sbranden@broadcom.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Marc Zyngier <marc.zyngier@arm.com>, Ray Jui <rjui@broadcom.com>,
linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
bcm-kernel-feedback-list@broadcom.com,
linux-rpi-kernel@lists.infradead.org,
Kumar Gala <galak@codeaurora.org>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 0/8] Raspberry Pi 2 support.
Date: Thu, 24 Dec 2015 16:01:40 -0800 [thread overview]
Message-ID: <87lh8jqtuj.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <201512222223.52449.arnd@arndb.de>
[-- Attachment #1.1: Type: text/plain, Size: 675 bytes --]
Arnd Bergmann <arnd@arndb.de> writes:
> On Tuesday 22 December 2015, Alexander Aring wrote:
>> Later while booting the kernel hangs forever, the solution on my side
>> was to enable:
>>
>> CONFIG_HAVE_ARM_ARCH_TIMER
>>
>> I think this doesn't use the BCM2835 timer anymore and some cortex-a7
>> related "generic timer", or?
>
> Right, but I don't see how that relates to the irqchip. Is the BCM2835 timer
> connected to a secondary irqchip, while the arch timer connects to the primary GIC?
The 2835 timer is a "peripheral", and connects to the second level
irqchip, while the arm arch timer can give us per-cpu interrupts in the
first level controller.
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 818 bytes --]
[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: eric@anholt.net (Eric Anholt)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/8] Raspberry Pi 2 support.
Date: Thu, 24 Dec 2015 16:01:40 -0800 [thread overview]
Message-ID: <87lh8jqtuj.fsf@eliezer.anholt.net> (raw)
In-Reply-To: <201512222223.52449.arnd@arndb.de>
Arnd Bergmann <arnd@arndb.de> writes:
> On Tuesday 22 December 2015, Alexander Aring wrote:
>> Later while booting the kernel hangs forever, the solution on my side
>> was to enable:
>>
>> CONFIG_HAVE_ARM_ARCH_TIMER
>>
>> I think this doesn't use the BCM2835 timer anymore and some cortex-a7
>> related "generic timer", or?
>
> Right, but I don't see how that relates to the irqchip. Is the BCM2835 timer
> connected to a secondary irqchip, while the arch timer connects to the primary GIC?
The 2835 timer is a "peripheral", and connects to the second level
irqchip, while the arm arch timer can give us per-cpu interrupts in the
first level controller.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 818 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20151224/f28d54c2/attachment.sig>
next prev parent reply other threads:[~2015-12-25 0:01 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 23:55 [PATCH v2 0/8] Raspberry Pi 2 support Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` [PATCH v2 1/8] irq: bcm2836: Fix initialization of the LOCAL_IRQ_CNT*IRQ timers Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` [PATCH v2 2/8] irq: bcm2836: Add SMP support for the 2836 Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-17 5:17 ` Baruch Siach
2015-12-17 5:17 ` Baruch Siach
2015-12-17 5:17 ` Baruch Siach
2015-12-16 23:55 ` [PATCH v2 3/8] dt-bindings: Add root properties for Raspberry Pi 2 Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-19 4:18 ` Rob Herring
2015-12-19 4:18 ` Rob Herring
2015-12-16 23:55 ` [PATCH v2 4/8] ARM: bcm2835: Split the DT for peripherals from the DT for the CPU Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-18 10:00 ` Alexander Aring
2015-12-18 10:00 ` Alexander Aring
2015-12-21 23:09 ` Eric Anholt
2015-12-21 23:09 ` Eric Anholt
2015-12-21 23:09 ` Eric Anholt
2015-12-16 23:55 ` [PATCH v2 5/8] ARM: bcm2835: Move the CPU/peripheral include out of common RPi DT Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` [PATCH v2 6/8] ARM: bcm2835: Add devicetree for bcm2836 and Raspberry Pi 2 B Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-22 10:11 ` Alexander Aring
2015-12-22 10:11 ` Alexander Aring
2015-12-16 23:55 ` [PATCH v2 7/8] ARM: bcm2835: Add a compat string for bcm2836 machine probe Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-16 23:55 ` [PATCH v2 8/8] ARM: bcm2835: Add Kconfig support for bcm2836 Eric Anholt
2015-12-16 23:55 ` Eric Anholt
2015-12-26 22:38 ` Eric Anholt
2015-12-26 22:38 ` Eric Anholt
2016-01-03 21:53 ` Noralf Trønnes
2016-01-03 21:53 ` Noralf Trønnes
2015-12-17 0:03 ` [PATCH v2 0/8] Raspberry Pi 2 support Arnd Bergmann
2015-12-17 0:03 ` Arnd Bergmann
2015-12-17 0:37 ` Eric Anholt
2015-12-17 0:37 ` Eric Anholt
2015-12-17 0:37 ` Eric Anholt
2015-12-17 8:48 ` Stefan Wahren
2015-12-17 8:48 ` Stefan Wahren
2015-12-17 10:26 ` Arnd Bergmann
2015-12-17 10:26 ` Arnd Bergmann
2015-12-17 10:26 ` Arnd Bergmann
2015-12-18 10:08 ` Alexander Aring
2015-12-18 10:08 ` Alexander Aring
2015-12-18 10:55 ` Alexander Aring
2015-12-18 10:55 ` Alexander Aring
2015-12-20 22:11 ` Alexander Aring
2015-12-20 22:11 ` Alexander Aring
2015-12-20 22:11 ` Alexander Aring
2015-12-21 23:07 ` Eric Anholt
2015-12-21 23:07 ` Eric Anholt
2015-12-22 14:26 ` Alexander Aring
2015-12-22 14:26 ` Alexander Aring
2015-12-22 14:26 ` Alexander Aring
2015-12-22 19:01 ` Eric Anholt
2015-12-22 19:01 ` Eric Anholt
2015-12-22 19:01 ` Eric Anholt
2015-12-26 21:38 ` Noralf Trønnes
2015-12-26 21:38 ` Noralf Trønnes
2015-12-21 23:11 ` Arnd Bergmann
2015-12-21 23:11 ` Arnd Bergmann
2015-12-22 14:20 ` Alexander Aring
2015-12-22 14:20 ` Alexander Aring
2015-12-22 14:20 ` Alexander Aring
2015-12-22 21:23 ` Arnd Bergmann
2015-12-22 21:23 ` Arnd Bergmann
2015-12-22 21:23 ` Arnd Bergmann
2015-12-25 0:01 ` Eric Anholt [this message]
2015-12-25 0:01 ` Eric Anholt
2015-12-25 0:01 ` Eric Anholt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87lh8jqtuj.fsf@eliezer.anholt.net \
--to=eric@anholt.net \
--cc=alex.aring@gmail.com \
--cc=arnd@arndb.de \
--cc=bcm-kernel-feedback-list@broadcom.com \
--cc=devicetree@vger.kernel.org \
--cc=f.fainelli@gmail.com \
--cc=galak@codeaurora.org \
--cc=ijc+devicetree@hellion.org.uk \
--cc=jason@lakedaemon.net \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rpi-kernel@lists.infradead.org \
--cc=marc.zyngier@arm.com \
--cc=mark.rutland@arm.com \
--cc=rjui@broadcom.com \
--cc=robh+dt@kernel.org \
--cc=sbranden@broadcom.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.