From patchwork Fri Jun 19 12:57:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Faiz Abbas X-Patchwork-Id: 210854 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9D68CC433E3 for ; Fri, 19 Jun 2020 12:58:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 77DE2208C7 for ; Fri, 19 Jun 2020 12:58:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="zCPXUfb3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732590AbgFSM6a (ORCPT ); Fri, 19 Jun 2020 08:58:30 -0400 Received: from lelv0142.ext.ti.com ([198.47.23.249]:51676 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732495AbgFSM6a (ORCPT ); Fri, 19 Jun 2020 08:58:30 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 05JCwEZk082648; Fri, 19 Jun 2020 07:58:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1592571494; bh=1yyZ02rdUuurElexq779NNOoFqWvEfOJ8Vx4K01CaMQ=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=zCPXUfb33ipipjCsbHs074rbzD6imzHxj+jvtm9s9hOx63ZR4eX80uUnwrq4GyTZR pH9dUrN1fJQQyb56D98ERrxE7SSuS2CmZNp/qts1kgrrgigIoobK6je0BTNyifqaue iJhXPf2aEGDpL2kxlZbHtQscelfeBM2pcFieRuns= Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 05JCwEYN105675 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 19 Jun 2020 07:58:14 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 19 Jun 2020 07:58:14 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Fri, 19 Jun 2020 07:58:14 -0500 Received: from a0230074-Latitude-E7470.ent.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 05JCw2Hm015675; Fri, 19 Jun 2020 07:58:11 -0500 From: Faiz Abbas To: , , , , , , , , CC: Subject: [PATCH 2/7] mmc: sdhci_am654: Add flag for PHY calibration Date: Fri, 19 Jun 2020 18:27:56 +0530 Message-ID: <20200619125801.9530-3-faiz_abbas@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200619125801.9530-1-faiz_abbas@ti.com> References: <20200619125801.9530-1-faiz_abbas@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Not all controllers need calibration for the PHY DLL. Add a DLL_CALIB flag to indicate the same. Signed-off-by: Faiz Abbas --- drivers/mmc/host/sdhci_am654.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/sdhci_am654.c b/drivers/mmc/host/sdhci_am654.c index 061b4398a4f1..85a05344f825 100644 --- a/drivers/mmc/host/sdhci_am654.c +++ b/drivers/mmc/host/sdhci_am654.c @@ -97,6 +97,7 @@ struct sdhci_am654_driver_data { #define FREQSEL_2_BIT (1 << 1) #define STRBSEL_4_BIT (1 << 2) #define DLL_PRESENT (1 << 3) +#define DLL_CALIB (1 << 4) }; struct timing_data { @@ -325,7 +326,8 @@ static const struct sdhci_pltfm_data sdhci_am654_pdata = { static const struct sdhci_am654_driver_data sdhci_am654_drvdata = { .pdata = &sdhci_am654_pdata, - .flags = IOMUX_PRESENT | FREQSEL_2_BIT | STRBSEL_4_BIT | DLL_PRESENT, + .flags = IOMUX_PRESENT | FREQSEL_2_BIT | STRBSEL_4_BIT | DLL_PRESENT | + DLL_CALIB, }; static struct sdhci_ops sdhci_j721e_8bit_ops = { @@ -348,7 +350,7 @@ static const struct sdhci_pltfm_data sdhci_j721e_8bit_pdata = { static const struct sdhci_am654_driver_data sdhci_j721e_8bit_drvdata = { .pdata = &sdhci_j721e_8bit_pdata, - .flags = DLL_PRESENT, + .flags = DLL_PRESENT | DLL_CALIB, }; static struct sdhci_ops sdhci_j721e_4bit_ops = { @@ -469,7 +471,7 @@ static int sdhci_am654_init(struct sdhci_host *host) mask = OTAPDLYENA_MASK | OTAPDLYSEL_MASK; regmap_update_bits(sdhci_am654->base, PHY_CTRL4, mask, 0x0); - if (sdhci_am654->flags & DLL_PRESENT) { + if (sdhci_am654->flags & DLL_CALIB) { regmap_read(sdhci_am654->base, PHY_STAT1, &val); if (~val & CALDONE_MASK) { /* Calibrate IO lines */