This patchset adds support SMP on MediaTek MT6580 Cortex-A7 quad-core SoC. This is based on v4.2-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/2015/6/30/119 [3] https://lkml.org/lkml/2015/6/9/172 Change in v4: 1. Remove boot_lock and pen_release stuff 2. Fix some coding style Change in v3: 1. Add CPU power control in SCPSYS driver 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 (8): Document: bindings: DT: Add SMP enable method for MT6580 SoC platform dt-bindings: soc: Add SCPSYS compatible support for mt6580 soc: Mediatek: Add SCPSYS CPU power domain driver ARM: multi_v7_defconfig: enable INFRACFG and SCPSYS modules 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 + .../devicetree/bindings/soc/mediatek/scpsys.txt | 2 +- arch/arm/boot/dts/mt6580.dtsi | 26 +++ arch/arm/configs/multi_v7_defconfig | 2 + arch/arm/mach-mediatek/mediatek.c | 4 +- arch/arm/mach-mediatek/platsmp.c | 67 ++++++ drivers/soc/mediatek/mtk-scpsys.c | 250 +++++++++++++++++++++ include/linux/soc/mediatek/scpsys.h | 9 + 8 files changed, 359 insertions(+), 2 deletions(-) create mode 100644 include/linux/soc/mediatek/scpsys.h -- 1.9.1 ************* Email Confidentiality Notice ******************** The information contained in this e-mail message (including any attachments) may be confidential, proprietary, privileged, or otherwise exempt from disclosure under applicable laws. It is intended to be conveyed only to the designated recipient(s). Any use, dissemination, distribution, printing, retaining or copying of this e-mail (including its attachments) by unintended recipient(s) is strictly prohibited and may be unlawful. If you are not an intended recipient of this e-mail, or believe that you have received this e-mail in error, please notify the sender immediately (by replying to this e-mail), delete any and all copies of this e-mail (including any attachments) from your system, and do not disclose the content of this e-mail to any other person. Thank you! -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
