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 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 | 137 +++++++++++ drivers/soc/mediatek/mtk-scpsys.c | 250 ++++++++++++++++++++ include/linux/soc/mediatek/scpsys.h | 9 + 8 files changed, 429 insertions(+), 2 deletions(-) create mode 100644 include/linux/soc/mediatek/scpsys.h -- 1.7.9.5 -- 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
