From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965828AbeCGTyi (ORCPT ); Wed, 7 Mar 2018 14:54:38 -0500 Received: from mga11.intel.com ([192.55.52.93]:28473 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934658AbeCGTyf (ORCPT ); Wed, 7 Mar 2018 14:54:35 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,437,1515484800"; d="scan'208";a="23760033" Date: Wed, 7 Mar 2018 11:47:05 -0800 From: Ivan Gorinov To: Thomas Gleixner Cc: Linux Kernel Mailing List , Ingo Molnar , Rob Herring , Mark Rutland Subject: [PATCH v4 3/4] of: Documentation: Add x86 local APIC ID property Message-ID: <3a0359afad71abc0c0d682bfcd0dd66055f5d7e5.1520450752.git.ivan.gorinov@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Current x86 Device Tree implementation does not support multiprocessing. Add new "intel,apic-id" property to allow using CPU descriptions in Device Tree data provided by the U-Boot loader. Address specified in 'reg' to be used as default local APIC ID to avoid breaking existing systems with DTB provided by firmware. Signed-off-by: Ivan Gorinov --- Documentation/devicetree/bindings/x86/ce4100.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/x86/ce4100.txt b/Documentation/devicetree/bindings/x86/ce4100.txt index b49ae59..d15de48 100644 --- a/Documentation/devicetree/bindings/x86/ce4100.txt +++ b/Documentation/devicetree/bindings/x86/ce4100.txt @@ -14,11 +14,17 @@ The CPU node compatible = "intel,ce4100"; reg = <0>; lapic = <&lapic0>; + intel,apic-id = <0>; }; The reg property describes the CPU number. The lapic property points to the local APIC timer. +Optional properties: + +- intel,apic-id: local APIC ID. + The address specified in "reg" is used as default local APIC ID. + The SoC node ------------ -- 2.7.4