From patchwork Mon Jan 13 05:58:36 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anson Huang X-Patchwork-Id: 3473641 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 C5ABC9F2E9 for ; Mon, 13 Jan 2014 06:01:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A8E3E2010E for ; Mon, 13 Jan 2014 06:01:01 +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 6DDF920107 for ; Mon, 13 Jan 2014 06:01:00 +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 1W2aZ0-0004KU-BB; Mon, 13 Jan 2014 05:59:54 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1W2aYm-00056q-1u; Mon, 13 Jan 2014 05:59:40 +0000 Received: from co9ehsobe001.messaging.microsoft.com ([207.46.163.24] helo=co9outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1W2aYR-00053s-2c for linux-arm-kernel@lists.infradead.org; Mon, 13 Jan 2014 05:59:20 +0000 Received: from mail41-co9-R.bigfish.com (10.236.132.237) by CO9EHSOBE015.bigfish.com (10.236.130.78) with Microsoft SMTP Server id 14.1.225.22; Mon, 13 Jan 2014 05:58:57 +0000 Received: from mail41-co9 (localhost [127.0.0.1]) by mail41-co9-R.bigfish.com (Postfix) with ESMTP id 39E773400D0; Mon, 13 Jan 2014 05:58:57 +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 mail41-co9 (localhost.localdomain [127.0.0.1]) by mail41-co9 (MessageSwitch) id 1389592735444420_928; Mon, 13 Jan 2014 05:58:55 +0000 (UTC) Received: from CO9EHSMHS013.bigfish.com (unknown [10.236.132.241]) by mail41-co9.bigfish.com (Postfix) with ESMTP id 5D2BF840047; Mon, 13 Jan 2014 05:58:55 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO9EHSMHS013.bigfish.com (10.236.130.23) with Microsoft SMTP Server (TLS) id 14.16.227.3; Mon, 13 Jan 2014 05:58:55 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-003.039d.mgd.msft.net (10.84.1.16) with Microsoft SMTP Server (TLS) id 14.3.158.2; Mon, 13 Jan 2014 05:58:54 +0000 Received: from ubuntu.ap.freescale.net (ubuntu-010192242118.ap.freescale.net [10.192.242.118]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id s0D5wl67021728; Sun, 12 Jan 2014 22:58:52 -0700 From: Anson Huang To: , Subject: [PATCH V3 3/5] ARM: imx: add suspend in ocram support on i.mx6dl Date: Mon, 13 Jan 2014 13:58:36 +0800 Message-ID: <1389592718-9999-3-git-send-email-b20788@freescale.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1389592718-9999-1-git-send-email-b20788@freescale.com> References: <1389592718-9999-1-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_005919_319522_9A708B59 X-CRM114-Status: GOOD ( 12.46 ) 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 --- Changes since V2: Only do necessary change based on i.mx6q's suspend to ocram function, only cpu type and MMDC IOs' info need changed. arch/arm/mach-imx/pm-imx6q.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c index 8997f58..670070b 100644 --- a/arch/arm/mach-imx/pm-imx6q.c +++ b/arch/arm/mach-imx/pm-imx6q.c @@ -66,6 +66,7 @@ #define MX6Q_SUSPEND_OCRAM_SIZE 0x1000 #define MX6_MAX_MMDC_IO_NUM 33 #define MX6Q_MMDC_IO_NUM 33 +#define MX6DL_MMDC_IO_NUM 33 static void __iomem *ccm_base; static void __iomem *suspend_ocram_base; @@ -103,6 +104,18 @@ static u32 imx6q_mmdc_io_dsm_offset[] = { 0x74c /* GPR_ADDS */ }; +static u32 imx6dl_mmdc_io_dsm_offset[] = { + 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 @@ -425,6 +438,16 @@ static int __init imx6q_ocram_suspend_init(void) readl_relaxed(*(&pm_info->iomuxc_base.vbase) + imx6q_mmdc_io_dsm_offset[i]); } + } else if (cpu_is_imx6dl()) { + pm_info->cpu_type = MXC_CPU_IMX6DL; + pm_info->mmdc_io_num = MX6DL_MMDC_IO_NUM; + for (i = 0; i < MX6DL_MMDC_IO_NUM; i++) { + pm_info->mmdc_io_val[i][0] = + imx6dl_mmdc_io_dsm_offset[i]; + pm_info->mmdc_io_val[i][1] = + readl_relaxed(*(&pm_info->iomuxc_base.vbase) + + imx6dl_mmdc_io_dsm_offset[i]); + } } imx6_suspend_in_ocram_fn = (void *)fncpy(