From: Scott Shu <scott.shu@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
Arnd Bergmann <arnd@arndb.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Heiko Stuebner <heiko@sntech.de>,
Yingjoe Chen <yingjoe.chen@mediatek.com>,
Marc Carino <marc.ceeeee@gmail.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Radha Mohan Chintakuntla <rchintakuntla@cavium.com>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>
Cc: <loda.chou@mediatek.com>, <jades.shih@mediatek.com>,
<scott.shu@gmail.com>, <wsd_upstream@mediatek.com>
Subject: [PATCH v2 0/6] This series adds SMP support for the MediaTek MT6580.
Date: Fri, 10 Jul 2015 14:04:03 +0800 [thread overview]
Message-ID: <1436508249-49338-1-git-send-email-scott.shu@mediatek.com> (raw)
In-Reply-To: <Scott Shu <scott.shu@gmail.com>
This patchset adds support SMP on MediaTek MT6580 Cortex-A7 quad-core SoC.
This is based on v4.1-rc1 and following patch series:
(1) Yingjoe Chen's "Add SMP bringup support for mt65xx socs" [1]
(2) Mars Cheng's "Add mt6580 basic chip support" [2]
(3) Sascha Hauer's "Mediatek SCPSYS power domain support" [3]
The secondary cores are power off as default on MT6580, this change adds
a new enable-method to turn on power to the cores during booting process.
The System Power Manager (SPM) inside the SCPSYS is for the CPU MTCMOS
power domain control. Please check [3] for more information about SCPSYS.
[1] https://lkml.org/lkml/2015/5/16/33
[2] https://lkml.org/lkml/2015/7/7/122
[3] https://lkml.org/lkml/2015/6/9/172
Change in v2:
1. Rebase to 4.2-rc1
2. Fix using usleep() in atomic context
3. Put a timeout in cpu power on/off sequence
4. Fix some coding style
Scott Shu (6):
Document: bindings: DT: Add SMP enable method for MT6580 SoC
platform
soc: Mediatek: Add SCPSYS CPU power domain driver
ARM: mediatek: add smp bringup code for MT6580
ARM: Mediatek: enable GPT6 on boot up to make arch timer working
for MT6580
ARM: dts: mt6580: Add device nodes to the MT6580 dtsi file
ARM: dts: mt6580: enable basic SMP bringup for MT6580
Documentation/devicetree/bindings/arm/cpus.txt | 1 +
arch/arm/boot/dts/mt6580.dtsi | 25 +++
arch/arm/mach-mediatek/Makefile | 2 +-
arch/arm/mach-mediatek/generic.h | 23 +++
arch/arm/mach-mediatek/hotplug.c | 267 +++++++++++++++++++++++++
arch/arm/mach-mediatek/mediatek.c | 4 +-
arch/arm/mach-mediatek/platsmp.c | 139 ++++++++++++-
7 files changed, 458 insertions(+), 3 deletions(-)
create mode 100644 arch/arm/mach-mediatek/generic.h
create mode 100644 arch/arm/mach-mediatek/hotplug.c
next parent reply other threads:[~2015-07-10 6:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <Scott Shu <scott.shu@gmail.com>
2015-07-10 6:04 ` Scott Shu [this message]
2015-07-10 6:04 ` [PATCH v2 1/6] Document: bindings: DT: Add SMP enable method for MT6580 SoC platform Scott Shu
2015-07-10 6:04 ` [PATCH v2 2/6] soc: Mediatek: Add SCPSYS CPU power domain driver Scott Shu
2015-07-10 14:31 ` Matthias Brugger
2015-07-13 4:18 ` Scott Shu
2015-07-18 2:23 ` Scott Shu
2015-07-10 6:04 ` [PATCH v2 3/6] ARM: mediatek: add smp bringup code for MT6580 Scott Shu
2015-07-10 6:04 ` [PATCH v2 4/6] ARM: Mediatek: enable GPT6 on boot up to make arch timer working " Scott Shu
2015-07-10 6:04 ` [PATCH v2 5/6] ARM: dts: mt6580: Add device nodes to the MT6580 dtsi file Scott Shu
2015-07-10 6:04 ` [PATCH v2 6/6] ARM: dts: mt6580: enable basic SMP bringup for MT6580 Scott Shu
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