From patchwork Mon Oct 21 14:27:02 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aisheng Dong X-Patchwork-Id: 3078311 Return-Path: X-Original-To: patchwork-linux-mmc@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 D3E649F372 for ; Mon, 21 Oct 2013 14:44:25 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C7A5C20364 for ; Mon, 21 Oct 2013 14:44:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D9DFE20383 for ; Mon, 21 Oct 2013 14:44:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753200Ab3JUOoO (ORCPT ); Mon, 21 Oct 2013 10:44:14 -0400 Received: from tx2ehsobe003.messaging.microsoft.com ([65.55.88.13]:33421 "EHLO tx2outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753109Ab3JUOoN (ORCPT ); Mon, 21 Oct 2013 10:44:13 -0400 Received: from mail211-tx2-R.bigfish.com (10.9.14.252) by TX2EHSOBE006.bigfish.com (10.9.40.26) with Microsoft SMTP Server id 14.1.225.22; Mon, 21 Oct 2013 14:44:13 +0000 Received: from mail211-tx2 (localhost [127.0.0.1]) by mail211-tx2-R.bigfish.com (Postfix) with ESMTP id D335E360188; Mon, 21 Oct 2013 14:44:12 +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(z54eehzzz1f42h208ch1ee6h1de0h1fdah2073h1202h1e76h1d1ah1d2ah1fc6h1082kzz1de098h1de097h8275bhz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh1fb3h1d0ch1d2eh1d3fh1dfeh1dffh1e23h1fe8h1ff5h1155h) Received: from mail211-tx2 (localhost.localdomain [127.0.0.1]) by mail211-tx2 (MessageSwitch) id 1382366650708325_9028; Mon, 21 Oct 2013 14:44:10 +0000 (UTC) Received: from TX2EHSMHS022.bigfish.com (unknown [10.9.14.241]) by mail211-tx2.bigfish.com (Postfix) with ESMTP id A812CAC003F; Mon, 21 Oct 2013 14:44:10 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by TX2EHSMHS022.bigfish.com (10.9.99.122) with Microsoft SMTP Server (TLS) id 14.16.227.3; Mon, 21 Oct 2013 14:44:10 +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, 21 Oct 2013 14:44:09 +0000 Received: from shlinux2.ap.freescale.net (shlinux2.ap.freescale.net [10.192.224.44]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id r9LEi0OG002939; Mon, 21 Oct 2013 07:44:07 -0700 From: Dong Aisheng To: CC: , , , , , , Subject: [PATCH 2/7] mmc: sdhci-esdhc-imx: add SDHCI_TRANSFER_MODE read function Date: Mon, 21 Oct 2013 22:27:02 +0800 Message-ID: <1382365627-26816-3-git-send-email-b29396@freescale.com> X-Mailer: git-send-email 1.7.2.rc3 In-Reply-To: <1382365627-26816-1-git-send-email-b29396@freescale.com> References: <1382365627-26816-1-git-send-email-b29396@freescale.com> MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-7.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 Used to read out the correct value of SDHCI_TRANSFER_MODE register for upper layer. Signed-off-by: Dong Aisheng --- drivers/mmc/host/sdhci-esdhc-imx.c | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 461a4c3..2be77e0 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -385,6 +385,22 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg) return ret; } + if (unlikely(reg == SDHCI_TRANSFER_MODE)) { + if (esdhc_is_usdhc(imx_data)) { + u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL); + ret = m & ESDHC_MIX_CTRL_SDHCI_MASK; + /* Swap AC23 bit */ + if (m & ESDHC_MIX_CTRL_AC23EN) { + ret &= ~ESDHC_MIX_CTRL_AC23EN; + ret |= SDHCI_TRNS_AUTO_CMD23; + } + } else { + ret = readw(host->ioaddr + SDHCI_TRANSFER_MODE); + } + + return ret; + } + return readw(host->ioaddr + reg); }