From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Subject: [PATCH] mmc: sdhci-s3c: add quirk about BROKEN_ADMA_ZEROLEN_DESC Date: Tue, 12 Jul 2011 17:30:47 +0900 Message-ID: <4E1C0637.2090603@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7BIT Return-path: Received: from mailout1.samsung.com ([203.254.224.24]:16373 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751583Ab1GLIai (ORCPT ); Tue, 12 Jul 2011 04:30:38 -0400 Received: from epcpsbgm2.samsung.com (mailout1.samsung.com [203.254.224.24]) by mailout1.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTP id <0LO700A2AOYYF5C0@mailout1.samsung.com> for linux-mmc@vger.kernel.org; Tue, 12 Jul 2011 17:30:36 +0900 (KST) Received: from TNRNDGASPAPP1.tn.corp.samsungelectronics.net ([165.213.149.150]) by mmp1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LO70077HOZ0QV@mmp1.samsung.com> for linux-mmc@vger.kernel.org; Tue, 12 Jul 2011 17:30:36 +0900 (KST) Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: "linux-mmc@vger.kernel.org" Cc: Chris Ball , Ben Dooks , Kyungmin Park This patch is added the quirk for Samsung SoCs. Samsung SoCs need to set QUIRK_BROKEN_ADMA_ZEROLEN_DESC. (If ADMA operation is more than 65535, maybe set by zero.) Signed-off-by: Jaehoon Chung Signed-off-by: Kyungmin Park --- drivers/mmc/host/sdhci-s3c.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 460ffaf..03da44a 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -502,6 +502,9 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev) /* This host supports the Auto CMD12 */ host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12; + /* Samsung SoCs need BROKEN_ADMA_ZEROLEN_DESC */ + host->quirks |= SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC; + if (pdata->cd_type == S3C_SDHCI_CD_NONE || pdata->cd_type == S3C_SDHCI_CD_PERMANENT) host->quirks |= SDHCI_QUIRK_BROKEN_CARD_DETECTION;