From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754398AbaDONM6 (ORCPT ); Tue, 15 Apr 2014 09:12:58 -0400 Received: from mail-ie0-f173.google.com ([209.85.223.173]:33483 "EHLO mail-ie0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751586AbaDONM4 (ORCPT ); Tue, 15 Apr 2014 09:12:56 -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 v2 0/5] ARM: SMP: support Broadcom mobile SoCs Date: Tue, 15 Apr 2014 08:12:49 -0500 Message-Id: <1397567574-31599-1-git-send-email-elder@linaro.org> X-Mailer: git-send-email 1.7.9.5 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() (or rather a new variant of that) so that SMP operations are assigned using device tree rather than adding it to a machine definition in a board file. The first patch adds the ability to extract information from device tree nodes having a matching "enable-method" value. This allows additional parameters to be associated with the enable method. This is used for the Broadcom SoCs to efficiently determine the location of a special register used in coordinating the start of secondary CPUs. I have not included a device tree document update here; I would like suggestions on where the new enable method and its parameter should be documented. (I presume in .../arm/cpus.txt, but that could get out of hand as more boards define new enable methods.) -Alex Note: This series is based on v3.15-rc1, plus one more recently-posted patch: http://permalink.gmane.org/gmane.linux.kernel/1683693 History v2: - Fixed a Makefile error (:= should have been +=) - No longer set CONFIG_NR_CPUS in bcm_defconfig - Rebased onto v3.15-rc1 This series is available here: http://git.linaro.org/landing-teams/working/broadcom/kernel.git Branch review/bcm-smp-v2 Alex Elder (5): ARM: introduce CPU_METHOD_OF_DECLARE_SETUP() 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/include/asm/smp.h | 10 +- arch/arm/kernel/devtree.c | 31 +++++-- arch/arm/mach-bcm/Kconfig | 18 +++- arch/arm/mach-bcm/Makefile | 3 + arch/arm/mach-bcm/platsmp.c | 194 +++++++++++++++++++++++++++++++++++++++ 8 files changed, 284 insertions(+), 11 deletions(-) create mode 100644 arch/arm/mach-bcm/platsmp.c -- 1.7.9.5