From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754918AbaGKXrx (ORCPT ); Fri, 11 Jul 2014 19:47:53 -0400 Received: from lhrrgout.huawei.com ([194.213.3.17]:58631 "EHLO lhrrgout.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751509AbaGKXrw (ORCPT ); Fri, 11 Jul 2014 19:47:52 -0400 From: Liu Hua To: , , , , , CC: , , , , , , Liu Hua Subject: [RFC PATCH 1/2] irqchip: GIC: introduce ICPIDR2 register interface Date: Fri, 11 Jul 2014 14:46:16 +0800 Message-ID: <1405061177-43834-2-git-send-email-sdu.liu@huawei.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1405061177-43834-1-git-send-email-sdu.liu@huawei.com> References: <1405061177-43834-1-git-send-email-sdu.liu@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.107.197.247] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Peripheral ID2 Register provides a four-bit architecturally-defined architecture revision field. So we can identify the GIC verison from this register. It is useful sometimes. Signed-off-by: Liu Hua --- include/linux/irqchip/arm-gic.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h index 45e2d8c..872a562 100644 --- a/include/linux/irqchip/arm-gic.h +++ b/include/linux/irqchip/arm-gic.h @@ -38,6 +38,7 @@ #define GIC_DIST_SOFTINT 0xf00 #define GIC_DIST_SGI_PENDING_CLEAR 0xf10 #define GIC_DIST_SGI_PENDING_SET 0xf20 +#define GIC_DIST_ICPIDR2 0xfe8 #define GICH_HCR 0x0 #define GICH_VTR 0x4 -- 1.9.0