From patchwork Thu Sep 27 14:07:38 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anand Moon X-Patchwork-Id: 10618059 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0049515E8 for ; Thu, 27 Sep 2018 14:08:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E57FD2B71E for ; Thu, 27 Sep 2018 14:08:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D9ABB2B731; Thu, 27 Sep 2018 14:08:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3B2522B71E for ; Thu, 27 Sep 2018 14:08:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728144AbeI0U0z (ORCPT ); Thu, 27 Sep 2018 16:26:55 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:42102 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727175AbeI0U0y (ORCPT ); Thu, 27 Sep 2018 16:26:54 -0400 Received: by mail-pg1-f194.google.com with SMTP id i4-v6so1443884pgq.9; Thu, 27 Sep 2018 07:08:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=6x61LsIEMPBlMr59UuLtUedNy+MpQHDFd6/mORvL11w=; b=hK5oxA1kT3GF/C0NdnkiSQKmbAxE8f0r24KbjjU2EKGiTUP36hhvdhM64exlFWt9pv cQos8Flq+D6+etuwtu61Yv9nVht0FVRQqqGP+g7PcXwgfK43piS1EAHZKQUo60S9mA0p b8E13xBBc5VqSKuR7zpuqB+uP4sDdY3XP3XlclSZ7+dH27IbQVRCI44geuk2oiN5JNr2 ZTK3MoEZnyD+fn+fy+Wv6PKoecV6k4Vd+l+YnRrkFAYXrenwjimiwuu3CDBdemz5FL89 VDZaQpzlkuVspjKrCH8Xar4PnPl2BTLVQGWzlXSs7aL4g9EY7k+yuP39TUeG3Z0PNySu l9aA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=6x61LsIEMPBlMr59UuLtUedNy+MpQHDFd6/mORvL11w=; b=fOFyyB777k9H8+eFJOzHC1PcXi299dT6z0mJejwR2kU280HimWf3v40PG0FVa0/13R uekscmHQqHKxrVJBJumiO2cHcycZFuWSh+Itcpd+en5TXKzTlASXpsgy4QrITeplSucl h0vvspumRLi1VuysSu1Dflr/5QWyoZ8inP1n+2UedStrx7x9o9y+dnqqBvIWP/vZuujg jvHvN6TOpt34yLFxp6fP1iFFyvhR6WgywcYV17/+PsZeGk2KihujV61g9QFSY9NFnJz+ mPBIcEstVwVaZKtRYm1oa543TmKJGm6+Dn9hZZT7Kk2RGudQvm7b3eyp52s5vZXokDIs Xxgw== X-Gm-Message-State: ABuFfohCOnW5p2ZGF4D5I6Sl7avetlQ2IT+aZYEsMOxkvFW511qLzSOa 0/uvbiAzgoiqxLclvkVrhoY= X-Google-Smtp-Source: ACcGV615vJqnSIKgvgZ3wV3wvJQoyk/Afvl/CmrUd9Ref4PhlrIehb8cxmfaUyh1+OyTEBCXOonkaA== X-Received: by 2002:a63:1b52:: with SMTP id b18-v6mr10408382pgm.303.1538057307578; Thu, 27 Sep 2018 07:08:27 -0700 (PDT) Received: from localhost.localdomain ([103.51.74.185]) by smtp.gmail.com with ESMTPSA id r205-v6sm4259763pgr.11.2018.09.27.07.08.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 27 Sep 2018 07:08:27 -0700 (PDT) From: Anand Moon To: Rob Herring , Mark Rutland , Kukjin Kim , Krzysztof Kozlowski , Jaehoon Chung , Ulf Hansson , Marek Szyprowski Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org Subject: [PATCHv5 6/6] mmc: dw_mmc-exynos: Add tuning for sdr and ddr timing for USH-I mode Date: Thu, 27 Sep 2018 14:07:38 +0000 Message-Id: <20180927140738.1006-7-linux.amoon@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180927140738.1006-1-linux.amoon@gmail.com> References: <20180927140738.1006-1-linux.amoon@gmail.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add tuning for sdr and ddr timing for USH-I mode sdr104/sdr50/ddr50 for host controller. Cc: Jaehoon Chung Cc: Marek Szyprowski Signed-off-by: Anand Moon --- No changes from previous patch --- drivers/mmc/host/dw_mmc-exynos.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index ab47b018716a..d46c3439b508 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -253,6 +253,8 @@ static void dw_mci_exynos_config_hs400(struct dw_mci *host, u32 timing) if (timing == MMC_TIMING_MMC_HS400) { dqs |= DATA_STROBE_EN; strobe = DQS_CTRL_RD_DELAY(strobe, priv->dqs_delay); + } else if (timing == MMC_TIMING_UHS_SDR104) { + dqs &= 0xffffff00; } else { dqs &= ~DATA_STROBE_EN; } @@ -312,6 +314,15 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios) if (ios->bus_width == MMC_BUS_WIDTH_8) wanted <<= 1; break; + case MMC_TIMING_UHS_SDR104: + case MMC_TIMING_UHS_SDR50: + clksel = (priv->sdr_timing & 0xfff8ffff) | + (priv->ciu_div << 16); + break; + case MMC_TIMING_UHS_DDR50: + clksel = (priv->ddr_timing & 0xfff8ffff) | + (priv->ciu_div << 16); + break; default: clksel = priv->sdr_timing; }