From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Scott Shu <scott.shu@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
Sascha Hauer <s.hauer@pengutronix.de>,
Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, wsd_upstream@mediatek.com,
scott.shu@gmail.com, loda.chou@mediatek.com,
linux-kernel@vger.kernel.org, jades.shih@mediatek.com,
linux-mediatek@lists.infradead.org, Mars.Cheng@mediatek.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 5/8] ARM: mediatek: add smp bringup code for MT6580
Date: Wed, 5 Aug 2015 10:44:30 +0100 [thread overview]
Message-ID: <20150805094429.GU7557@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1438696464-59858-6-git-send-email-scott.shu@mediatek.com>
On Tue, Aug 04, 2015 at 09:54:21PM +0800, Scott Shu wrote:
> Add support for cpu enable-method "mediatek,mt6580-smp" for booting
> secondary CPUs on MT6580.
If you have CPU power domain support, and you power up and power down the
CPUs, why do you need the boot_lock and pen_release stuff? Isn't keeping
the power off on a CPU sufficient to prevent it entering the kernel?
--
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WARNING: multiple messages have this Message-ID (diff)
From: Russell King - ARM Linux <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>
To: Scott Shu <scott.shu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Cc: Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
wsd_upstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
scott.shu-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
loda.chou-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
jades.shih-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Mars.Cheng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH v3 5/8] ARM: mediatek: add smp bringup code for MT6580
Date: Wed, 5 Aug 2015 10:44:30 +0100 [thread overview]
Message-ID: <20150805094429.GU7557@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1438696464-59858-6-git-send-email-scott.shu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
On Tue, Aug 04, 2015 at 09:54:21PM +0800, Scott Shu wrote:
> Add support for cpu enable-method "mediatek,mt6580-smp" for booting
> secondary CPUs on MT6580.
If you have CPU power domain support, and you power up and power down the
CPUs, why do you need the boot_lock and pen_release stuff? Isn't keeping
the power off on a CPU sufficient to prevent it entering the kernel?
--
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
--
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WARNING: multiple messages have this Message-ID (diff)
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 5/8] ARM: mediatek: add smp bringup code for MT6580
Date: Wed, 5 Aug 2015 10:44:30 +0100 [thread overview]
Message-ID: <20150805094429.GU7557@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1438696464-59858-6-git-send-email-scott.shu@mediatek.com>
On Tue, Aug 04, 2015 at 09:54:21PM +0800, Scott Shu wrote:
> Add support for cpu enable-method "mediatek,mt6580-smp" for booting
> secondary CPUs on MT6580.
If you have CPU power domain support, and you power up and power down the
CPUs, why do you need the boot_lock and pen_release stuff? Isn't keeping
the power off on a CPU sufficient to prevent it entering the kernel?
--
FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up
according to speedtest.net.
next prev parent reply other threads:[~2015-08-05 9:44 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-04 13:54 [PATCH v3 0/8] This series adds SMP support for the MediaTek MT6580 Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 1/8] Document: bindings: DT: Add SMP enable method for MT6580 SoC platform Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 2/8] dt-bindings: soc: Add SCPSYS compatible support for mt6580 Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 3/8] soc: Mediatek: Add SCPSYS CPU power domain driver Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-05 8:50 ` Sascha Hauer
2015-08-05 8:50 ` Sascha Hauer
2015-08-06 2:59 ` Scott Shu
2015-08-06 2:59 ` Scott Shu
2015-08-06 2:59 ` Scott Shu
2015-08-06 10:03 ` Sascha Hauer
2015-08-06 10:03 ` Sascha Hauer
2015-08-07 1:56 ` Scott Shu
2015-08-07 1:56 ` Scott Shu
2015-08-07 1:56 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 4/8] ARM: multi_v7_defconfig: enable INFRACFG and SCPSYS modules Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 5/8] ARM: mediatek: add smp bringup code for MT6580 Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-05 9:44 ` Russell King - ARM Linux [this message]
2015-08-05 9:44 ` Russell King - ARM Linux
2015-08-05 9:44 ` Russell King - ARM Linux
2015-08-07 2:28 ` Scott Shu
2015-08-07 2:28 ` Scott Shu
2015-08-07 2:28 ` Scott Shu
2015-08-05 16:47 ` Matthias Brugger
2015-08-05 16:47 ` Matthias Brugger
2015-08-06 6:19 ` Sascha Hauer
2015-08-06 6:19 ` Sascha Hauer
2015-08-06 6:19 ` Sascha Hauer
2015-08-07 1:59 ` Scott Shu
2015-08-07 1:59 ` Scott Shu
2015-08-07 1:59 ` Scott Shu
2015-08-06 14:00 ` Scott Shu
2015-08-06 14:00 ` Scott Shu
2015-08-06 14:00 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 6/8] ARM: Mediatek: enable GPT6 on boot up to make arch timer working " Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 7/8] ARM: dts: mt6580: Add device nodes to the MT6580 dtsi file Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` [PATCH v3 8/8] ARM: dts: mt6580: enable basic SMP bringup for MT6580 Scott Shu
2015-08-04 13:54 ` Scott Shu
2015-08-04 13:54 ` Scott Shu
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