From patchwork Mon Mar 10 14:41:50 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 3803511 X-Patchwork-Delegate: vinod.koul@intel.com Return-Path: X-Original-To: patchwork-dmaengine@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 0369D9F1CD for ; Mon, 10 Mar 2014 14:47:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3D65C20258 for ; Mon, 10 Mar 2014 14:47:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3EB6920251 for ; Mon, 10 Mar 2014 14:47:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754013AbaCJOpM (ORCPT ); Mon, 10 Mar 2014 10:45:12 -0400 Received: from top.free-electrons.com ([176.31.233.9]:49538 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753993AbaCJOpI (ORCPT ); Mon, 10 Mar 2014 10:45:08 -0400 Received: by mail.free-electrons.com (Postfix, from userid 106) id 38CF78B8; Mon, 10 Mar 2014 15:45:12 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from localhost (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id DD62B816; Mon, 10 Mar 2014 15:45:11 +0100 (CET) From: Maxime Ripard To: Emilio Lopez , Dan Williams , Vinod Koul Cc: Mike Turquette , linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-sunxi@googlegroups.com, kevin.z.m.zh@gmail.com, sunny@allwinnertech.com, shuge@allwinnertech.com, zhuzhenhua@allwinnertech.com, andriy.shevchenko@intel.com, Maxime Ripard Subject: [PATCH v4 5/7] ARM: sun6i: Protect SDRAM gating bit Date: Mon, 10 Mar 2014 15:41:50 +0100 Message-Id: <1394462512-11620-6-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1394462512-11620-1-git-send-email-maxime.ripard@free-electrons.com> References: <1394462512-11620-1-git-send-email-maxime.ripard@free-electrons.com> Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Prevent the SDRAM controller from being gated by force-enabling it in the machine code. Signed-off-by: Maxime Ripard --- arch/arm/mach-sunxi/sun6i.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-sunxi/sun6i.c b/arch/arm/mach-sunxi/sun6i.c index 6b3905505fe0..1ccb27524a9e 100644 --- a/arch/arm/mach-sunxi/sun6i.c +++ b/arch/arm/mach-sunxi/sun6i.c @@ -34,6 +34,11 @@ static void __init sun6i_dt_init(void) clk = clk_get(NULL, "cpu"); if (!IS_ERR(clk)) clk_prepare_enable(clk); + + /* DDR gating clock */ + clk = clk_get(NULL, "ahb1_sdram"); + if (!IS_ERR(clk)) + clk_prepare_enable(clk); } extern void __init sun6i_reset_init(void);