Hi, This series adds SMP support for Broadcom's Northstar Plus SoC. There are similar SMP enablement methods for many ARMv7 bsed SoCs. BCM NSP SoC, has a typical such mechanism - after power-on, the secondary core is held in a standby state, primary core provides a startup address for the secondary core and wakes it up. Booting of the secondary core is serialized using pen_release global variable. The startup address is programmed at a special register location which is defined in the device tree using a "secondary-boot-reg" property in a node whose "enable-method" property matches. The first patch adds cpu-enable-method in the device tree bindings documentation. It also updates ARM CPU device tree documentation with Broadcom Northstar Plus CPU details. The second patch adds SMP support to the BCM NSP device tree file. Finally, third patch, enables SMP on BCM NSP. It also consolidates common SMP handling between BCM NSP and BCM Kona. This patch series is constructed based on Linux v4.3-rc2. The source code is available at GITHUB: https://github.com/Broadcom/cygnus-linux/tree/nsp-smp-v1 Kapil Hali (3): dt-bindings: add SMP enable-method for Broadcom NSP ARM: dts: add SMP support for Broadcom NSP ARM: BCM: Add SMP support for Broadcom NSP .../bindings/arm/bcm/brcm,nsp-cpu-method.txt | 36 ++++++ Documentation/devicetree/bindings/arm/cpus.txt | 1 + arch/arm/boot/dts/bcm-nsp.dtsi | 33 +++-- arch/arm/mach-bcm/Kconfig | 2 + arch/arm/mach-bcm/Makefile | 8 +- arch/arm/mach-bcm/bcm_nsp.h | 19 +++ arch/arm/mach-bcm/headsmp.S | 37 ++++++ arch/arm/mach-bcm/{kona_smp.c => platsmp.c} | 142 +++++++++++++++++++-- 8 files changed, 255 insertions(+), 23 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,nsp-cpu-method.txt create mode 100644 arch/arm/mach-bcm/bcm_nsp.h create mode 100644 arch/arm/mach-bcm/headsmp.S rename arch/arm/mach-bcm/{kona_smp.c => platsmp.c} (63%) -- 2.1.0 -- 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
