From patchwork Fri Aug 26 02:44:14 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Liu X-Patchwork-Id: 111700 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7B9C3B70C2 for ; Fri, 26 Aug 2011 12:39:13 +1000 (EST) Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QwmK3-0005lZ-Rv; Fri, 26 Aug 2011 02:39:08 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QwmK3-0004xL-DU; Fri, 26 Aug 2011 02:39:07 +0000 Received: from db3ehsobe002.messaging.microsoft.com ([213.199.154.140] helo=DB3EHSOBE002.bigfish.com) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QwmK0-0004x2-Dp for linux-arm-kernel@lists.infradead.org; Fri, 26 Aug 2011 02:39:05 +0000 Received: from mail73-db3-R.bigfish.com (10.3.81.251) by DB3EHSOBE002.bigfish.com (10.3.84.22) with Microsoft SMTP Server id 14.1.225.22; Fri, 26 Aug 2011 02:39:01 +0000 Received: from mail73-db3 (localhost.localdomain [127.0.0.1]) by mail73-db3-R.bigfish.com (Postfix) with ESMTP id 0FB9017D81C2; Fri, 26 Aug 2011 02:39:01 +0000 (UTC) X-SpamScore: 0 X-BigFish: VS0(zzzz1202hzz8275dhz2dh87h2a8h668h839h62h) X-Spam-TCS-SCL: 1:0 X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPVD:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-FB-DOMAIN-IP-MATCH: fail Received: from mail73-db3 (localhost.localdomain [127.0.0.1]) by mail73-db3 (MessageSwitch) id 1314326340775109_8553; Fri, 26 Aug 2011 02:39:00 +0000 (UTC) Received: from DB3EHSMHS005.bigfish.com (unknown [10.3.81.240]) by mail73-db3.bigfish.com (Postfix) with ESMTP id AE453B70051; Fri, 26 Aug 2011 02:39:00 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by DB3EHSMHS005.bigfish.com (10.3.87.105) with Microsoft SMTP Server (TLS) id 14.1.225.22; Fri, 26 Aug 2011 02:39:00 +0000 Received: from az33smr01.freescale.net (10.64.34.199) by 039-SN1MMR1-001.039d.mgd.msft.net (10.84.1.13) with Microsoft SMTP Server id 14.1.323.2; Thu, 25 Aug 2011 21:38:58 -0500 Received: from r64343-desktop.ap.freescale.net (r64343-desktop.ap.freescale.net [10.192.242.36]) by az33smr01.freescale.net (8.13.1/8.13.0) with ESMTP id p7Q2ct8u004483; Thu, 25 Aug 2011 21:38:56 -0500 (CDT) From: Jason Liu To: Subject: [[PATCH v2] ARM: i.MX: initialize l2x0 at early_init time Date: Fri, 26 Aug 2011 10:44:14 +0800 Message-ID: <1314326654-19128-1-git-send-email-jason.hui@linaro.org> X-Mailer: git-send-email 1.7.4.1 MIME-Version: 1.0 X-OriginatorOrg: sigmatel.com X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110825_223904_649522_3AD98DE6 X-CRM114-Status: GOOD ( 14.42 ) X-Spam-Score: -0.7 (/) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-0.7 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [213.199.154.140 listed in list.dnswl.org] Cc: s.hauer@pengutronix.de, patches@linaro.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org This can make the l2 cache work at early time which will benefit the boot up time. Tested on i.mx31pdk board, test result shows: Before: arch_initcall(mxc_init_l2x0); [ 0.558755] console [ttymxc0] enabled After: early_initcall(mxc_init_l2x0); [ 0.555716] console [ttymxc0] enabled Signed-off-by: Jason Liu Cc: Sascha Hauer --- arch/arm/mach-imx/cache-l2x0.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-imx/cache-l2x0.c b/arch/arm/mach-imx/cache-l2x0.c index 69d1322..e5538a4 100644 --- a/arch/arm/mach-imx/cache-l2x0.c +++ b/arch/arm/mach-imx/cache-l2x0.c @@ -53,4 +53,4 @@ static int mxc_init_l2x0(void) return 0; } -arch_initcall(mxc_init_l2x0); +early_initcall(mxc_init_l2x0);