From patchwork Thu Aug 22 11:00:44 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Christophe PLAGNIOL-VILLARD X-Patchwork-Id: 2848170 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id E3375BF546 for ; Thu, 22 Aug 2013 11:00:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B03112042C for ; Thu, 22 Aug 2013 11:00:42 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 87A9C20190 for ; Thu, 22 Aug 2013 11:00:37 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VCSd0-0006NK-GS; Thu, 22 Aug 2013 11:00:34 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VCScy-0004UZ-1x; Thu, 22 Aug 2013 11:00:32 +0000 Received: from 7.mo2.mail-out.ovh.net ([188.165.48.182] helo=mo2.mail-out.ovh.net) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VCScv-0004Th-6P for linux-arm-kernel@lists.infradead.org; Thu, 22 Aug 2013 11:00:30 +0000 Received: from mail416.ha.ovh.net (gw6.ovh.net [213.251.189.206]) by mo2.mail-out.ovh.net (Postfix) with SMTP id F2F99DC344C for ; Thu, 22 Aug 2013 13:00:03 +0200 (CEST) Received: from b0.ovh.net (HELO queueout) (213.186.33.50) by b0.ovh.net with SMTP; 22 Aug 2013 13:00:02 +0200 Received: from ns203013.ovh.net (HELO localhost) (plagnioj%jcrosoft.com@91.121.171.124) by ns0.ovh.net with SMTP; 22 Aug 2013 12:59:59 +0200 From: Jean-Christophe PLAGNIOL-VILLARD To: linux-arm-kernel@lists.infradead.org X-Ovh-Mailout: 178.32.228.2 (mo2.mail-out.ovh.net) Subject: [PATCH 1/1] ARM: at91: sam9g45: shutdown ddr1 too when rebooting Date: Thu, 22 Aug 2013 13:00:44 +0200 Message-Id: <1377169244-20462-1-git-send-email-plagnioj@jcrosoft.com> X-Mailer: git-send-email 1.8.3.2 X-Ovh-Tracer-Id: 17234994299332439037 X-Ovh-Remote: 91.121.171.124 (ns203013.ovh.net) X-Ovh-Local: 213.186.33.20 (ns0.ovh.net) X-OVH-SPAMSTATE: OK X-OVH-SPAMSCORE: -100 X-OVH-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeeikedrgeefucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-Spam-Check: DONE|U 0.5/N X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrfeeikedrgeefucetufdoteggodetrfcurfhrohhfihhlvgemucfqggfjnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130822_070029_364736_3E38AA24 X-CRM114-Status: GOOD ( 10.21 ) X-Spam-Score: -1.9 (-) Cc: Nicolas Ferre , Jean-Christophe PLAGNIOL-VILLARD X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-7.0 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP as on ddr0 we need to cleanly shutdown ddr1 if used before rebootinh Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Cc: Nicolas Ferre --- arch/arm/mach-at91/at91sam9g45_reset.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mach-at91/at91sam9g45_reset.S b/arch/arm/mach-at91/at91sam9g45_reset.S index 721a1a3..3fd634d 100644 --- a/arch/arm/mach-at91/at91sam9g45_reset.S +++ b/arch/arm/mach-at91/at91sam9g45_reset.S @@ -21,6 +21,8 @@ at91sam9g45_restart: ldr r5, =at91_ramc_base @ preload constants ldr r0, [r5] + add r5, #4 @ ddr1 + ldr r5, [r5] ldr r4, =at91_rstc_base ldr r1, [r4] @@ -30,6 +32,8 @@ at91sam9g45_restart: .balign 32 @ align to cache line + str r2, [r5, #AT91_DDRSDRC_RTR] @ disable DDR1 access + str r3, [r5, #AT91_DDRSDRC_LPR] @ power down DDR1 str r2, [r0, #AT91_DDRSDRC_RTR] @ disable DDR0 access str r3, [r0, #AT91_DDRSDRC_LPR] @ power down DDR0 str r4, [r1, #AT91_RSTC_CR] @ reset processor