Messages in this thread | | | From | Alex Elder <> | Subject | [PATCH v6 0/4] ARM: SMP: support Broadcom mobile SoCs | Date | Mon, 30 Jun 2014 17:15:36 -0500 |
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This series adds SMP support for two Broadcom mobile SoC families. It uses CPU_METHOD_OF_DECLARE() so that SMP operations are assigned using device tree rather than adding it to a machine definition in a board file.
The enable method starts a secondary core by writing to a register monitored by CPUs spinning in a ROM-based holding pen loop. The address of this register is recorded as a property in the "cpus" node of the device tree.
-Alex
Notes: - This series previously included the binding as its first patch. That has now been posted separately to facilitate and focus review. - This series is based on v3.16-rc1, plus two recently-posted patches: http://lists.infradead.org/pipermail/linux-arm-kernel/2014-June/264012.html http://lists.infradead.org/pipermail/linux-arm-kernel/2014-June/264024.html - This series, along with the binding patch, is available here: http://git.linaro.org/landing-teams/working/broadcom/kernel.git Branch review/bcm-smp-v6
History v6: - Only change was to separate the binding patch from the series. v5: - No real change; rebased onto v3.16-rc1. v4: - Renamed "platsmp.c" to be "kona_smp.c". - Rebased onto v3.15-rc5 v3: - Dropped definition and use of CPU_METHOD_OF_DECLARE_SETUP() - Added documentation for "enable-method" - Rebased onto v3.15-rc4 v2: - Fixed a Makefile error (:= should have been +=) - No longer set CONFIG_NR_CPUS in bcm_defconfig - Rebased onto v3.15-rc1
Alex Elder (4): ARM: add SMP support for Broadcom mobile SoCs ARM: configs: enable SMP in bcm_defconfig ARM: dts: enable SMP support for bcm28155 ARM: dts: enable SMP support for bcm21664
arch/arm/boot/dts/bcm11351.dtsi | 19 ++++ arch/arm/boot/dts/bcm21664.dtsi | 19 ++++ arch/arm/configs/bcm_defconfig | 1 + arch/arm/mach-bcm/Kconfig | 18 +++- arch/arm/mach-bcm/Makefile | 3 + arch/arm/mach-bcm/kona_smp.c | 202 ++++++++++++++++++++++++++++++++++++++++ 6 files changed, 259 insertions(+), 3 deletions(-) create mode 100644 arch/arm/mach-bcm/kona_smp.c
-- 1.9.1
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