From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755829AbaFPTjb (ORCPT ); Mon, 16 Jun 2014 15:39:31 -0400 Received: from mail-ig0-f179.google.com ([209.85.213.179]:60253 "EHLO mail-ig0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755777AbaFPTja (ORCPT ); Mon, 16 Jun 2014 15:39:30 -0400 From: Alex Elder To: mporter@linaro.org, bcm@fixthebug.org, linux@arm.linux.org.uk, devicetree@vger.kernel.org, arnd@arndb.de, sboyd@codeaurora.org Cc: bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 0/5] ARM: SMP: support Broadcom mobile SoCs Date: Mon, 16 Jun 2014 14:39:42 -0500 Message-Id: <1402947587-13898-1-git-send-email-elder@linaro.org> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: - I would prefer to document the binding in a separate file in the way suggested here: https://lkml.org/lkml/2014/5/20/559 But for now I'm keeping this independent of that. - 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 is available here: http://git.linaro.org/landing-teams/working/broadcom/kernel.git Branch review/bcm-smp-v5 History 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 (5): devicetree: bindings: document Broadcom CPU enable method 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 Documentation/devicetree/bindings/arm/cpus.txt | 12 ++ 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 +++++++++++++++++++++++++ 7 files changed, 271 insertions(+), 3 deletions(-) create mode 100644 arch/arm/mach-bcm/kona_smp.c -- 1.9.1