From patchwork Mon Jan 13 11:53:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 3474851 Return-Path: X-Original-To: patchwork-linux-arm@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 9B3139F169 for ; Mon, 13 Jan 2014 11:55:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D29482010E for ; Mon, 13 Jan 2014 11:55:41 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE25120107 for ; Mon, 13 Jan 2014 11:55:40 +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 1W2g6X-0006Bq-Le; Mon, 13 Jan 2014 11:54:54 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1W2g6N-0004pT-JY; Mon, 13 Jan 2014 11:54:43 +0000 Received: from va3ehsobe006.messaging.microsoft.com ([216.32.180.16] helo=va3outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W2g66-0004m1-CG for linux-arm-kernel@lists.infradead.org; Mon, 13 Jan 2014 11:54:28 +0000 Received: from mail33-va3-R.bigfish.com (10.7.14.252) by VA3EHSOBE008.bigfish.com (10.7.40.28) with Microsoft SMTP Server id 14.1.225.22; Mon, 13 Jan 2014 11:54:04 +0000 Received: from mail33-va3 (localhost [127.0.0.1]) by mail33-va3-R.bigfish.com (Postfix) with ESMTP id AEB19120075; Mon, 13 Jan 2014 11:54:04 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 3 X-BigFish: VS3(zzzz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h2189h1d1ah1d2ah1fc6h1082kzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h2327h2336h2438h2461h1155h) Received: from mail33-va3 (localhost.localdomain [127.0.0.1]) by mail33-va3 (MessageSwitch) id 1389614041906475_22104; Mon, 13 Jan 2014 11:54:01 +0000 (UTC) Received: from VA3EHSMHS005.bigfish.com (unknown [10.7.14.234]) by mail33-va3.bigfish.com (Postfix) with ESMTP id D61D12A0049; Mon, 13 Jan 2014 11:54:01 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by VA3EHSMHS005.bigfish.com (10.7.99.15) with Microsoft SMTP Server (TLS) id 14.16.227.3; Mon, 13 Jan 2014 11:53:58 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-004.039d.mgd.msft.net (10.84.1.14) with Microsoft SMTP Server (TLS) id 14.3.158.2; Mon, 13 Jan 2014 11:53:57 +0000 Received: from ubuntu.ap.freescale.net (ubuntu-010192242118.ap.freescale.net [10.192.242.118]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id s0DBrnDh013138; Mon, 13 Jan 2014 04:53:56 -0700 From: Anson Huang To: , Subject: [PATCH V4 4/6] ARM: imx: add suspend in ocram support on i.mx6dl Date: Mon, 13 Jan 2014 19:53:49 +0800 Message-ID: <1389614031-7253-4-git-send-email-b20788@freescale.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1389614031-7253-1-git-send-email-b20788@freescale.com> References: <1389614031-7253-1-git-send-email-b20788@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140113_065426_509552_45978C04 X-CRM114-Status: GOOD ( 10.65 ) X-Spam-Score: -4.2 (----) Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.3 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 i.MX6DL's suspend in ocram function is derived from i.MX6Q, the only difference is the offset of DDR IO pins. It can lower the DDR IO power from ~26mA@1.5V to ~15mA@1.5V, measured on i.MX6Q/DL SabreSD board, R25. Signed-off-by: Anson Huang --- arch/arm/mach-imx/pm-imx6q.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c index 42ac301..826bf8a 100644 --- a/arch/arm/mach-imx/pm-imx6q.c +++ b/arch/arm/mach-imx/pm-imx6q.c @@ -100,6 +100,18 @@ static const u32 imx6q_mmdc_io_dsm_offset[] __initconst = { 0x74c /* GPR_ADDS */ }; +static const u32 imx6dl_mmdc_io_dsm_offset[] __initconst = { + 0x470, 0x474, 0x478, 0x47c, /* DQM0 ~ DQM3 */ + 0x480, 0x484, 0x488, 0x48c, /* DQM4 ~ DQM7 */ + 0x464, 0x490, 0x4ac, 0x4b0, /* CAS, RAS, SDCLK_0, SDCLK_1 */ + 0x4bc, 0x4c0, 0x4c4, 0x4c8, /* DRAM_SDQS0 ~ DRAM_SDQS3 */ + 0x4cc, 0x4d0, 0x4d4, 0x4d8, /* DRAM_SDQS4 ~ DRAM_SDQS7 */ + 0x764, 0x770, 0x778, 0x77c, /* GPR_B0DS ~ GPR_B3DS */ + 0x780, 0x784, 0x78c, 0x748, /* GPR_B4DS ~ GPR_B7DS */ + 0x4b4, 0x4b8, 0x750, 0x760, /* SODT0, SODT1, DDRMODE_CTL, DDRMODE */ + 0x74c /* GPR_ADDS */ +}; + /* * This structure is for passing necessary data for low level ocram * suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct @@ -413,6 +425,10 @@ static int __init imx6q_ocram_suspend_init(void) pm_info->cpu_type = MXC_CPU_IMX6Q; pm_info->mmdc_io_num = ARRAY_SIZE(imx6q_mmdc_io_dsm_offset); mmdc_offset_array = imx6q_mmdc_io_dsm_offset; + } else if (cpu_is_imx6dl()) { + pm_info->cpu_type = MXC_CPU_IMX6DL; + pm_info->mmdc_io_num = ARRAY_SIZE(imx6dl_mmdc_io_dsm_offset); + mmdc_offset_array = imx6dl_mmdc_io_dsm_offset; } if (!mmdc_offset_array) {