From patchwork Wed Aug 11 01:01:43 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 176632 Return-path: X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on void.printf.net X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.9 tests=RCVD_IN_DNSWL_LOW autolearn=disabled version=3.2.5 Envelope-to: chris@printf.net Delivery-date: Wed, 11 Aug 2010 02:19:59 +0100 Received: from lists.laptop.org ([18.85.2.145] helo=mail.laptop.org) by void.printf.net with esmtp (Exim 4.69) (envelope-from ) id 1Oizz3-0005RI-MW for chris@printf.net; Wed, 11 Aug 2010 02:19:59 +0100 Received: by mail.laptop.org (Postfix) id 80F012477E; Tue, 10 Aug 2010 21:19:38 -0400 (EDT) Delivered-To: cjb@laptop.org Received: from spam.laptop.org (spam.laptop.org [18.85.46.23]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.laptop.org (Postfix) with ESMTPS id B13FC2477F for ; Tue, 10 Aug 2010 21:19:35 -0400 (EDT) X-ASG-Debug-ID: 1281489589-0b7452a20001-zHW3sV Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by spam.laptop.org with ESMTP id lsjl6SlSxTneK4lD for ; Tue, 10 Aug 2010 21:19:49 -0400 (EDT) X-Barracuda-Envelope-From: linux-mmc-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758200Ab0HKBTs (ORCPT ); Tue, 10 Aug 2010 21:19:48 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:58822 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757687Ab0HKBTs (ORCPT ); Tue, 10 Aug 2010 21:19:48 -0400 Received: from imap1.linux-foundation.org (imap1.linux-foundation.org [140.211.169.55]) by smtp1.linux-foundation.org (8.14.2/8.13.5/Debian-3ubuntu1.1) with ESMTP id o7B1Ej3p015349 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 10 Aug 2010 18:19:13 -0700 Received: from localhost.localdomain (localhost [127.0.0.1]) by imap1.linux-foundation.org (8.13.5.20060308/8.13.5/Debian-3ubuntu1.1) with ESMTP id o7B11i0s027055; Tue, 10 Aug 2010 18:01:44 -0700 Message-Id: <201008110101.o7B11i0s027055@imap1.linux-foundation.org> X-ASG-Orig-Subj: [patch 037/177] sdhci: 8-bit data transfer width support Subject: [patch 037/177] sdhci: 8-bit data transfer width support To: torvalds@linux-foundation.org Cc: akpm@linux-foundation.org, kyungmin.park@samsung.com, grant.likely@secretlab.ca, linux-mmc@vger.kernel.org From: akpm@linux-foundation.org Date: Tue, 10 Aug 2010 18:01:43 -0700 MIME-Version: 1.0 X-MIMEDefang-Filter: lf$Revision: 1.188 $ X-Scanned-By: MIMEDefang 2.63 on 140.211.169.13 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Barracuda-Connect: vger.kernel.org[209.132.180.67] X-Barracuda-Start-Time: 1281489589 X-Barracuda-URL: http://18.85.46.23:8000/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at laptop.org X-Barracuda-Spam-Score: 0.00 X-Barracuda-Spam-Status: No, SCORE=0.00 using global scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=5.5 tests=NO_REAL_NAME X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.2.37633 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- 0.00 NO_REAL_NAME From: does not include a real name diff -puN drivers/mmc/host/sdhci.c~sdhci-8-bit-data-transfer-width-support drivers/mmc/host/sdhci.c --- a/drivers/mmc/host/sdhci.c~sdhci-8-bit-data-transfer-width-support +++ a/drivers/mmc/host/sdhci.c @@ -1159,6 +1159,11 @@ static void sdhci_set_ios(struct mmc_hos ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); + if (ios->bus_width == MMC_BUS_WIDTH_8) + ctrl |= SDHCI_CTRL_8BITBUS; + else + ctrl &= ~SDHCI_CTRL_8BITBUS; + if (ios->bus_width == MMC_BUS_WIDTH_4) ctrl |= SDHCI_CTRL_4BITBUS; else diff -puN drivers/mmc/host/sdhci.h~sdhci-8-bit-data-transfer-width-support drivers/mmc/host/sdhci.h --- a/drivers/mmc/host/sdhci.h~sdhci-8-bit-data-transfer-width-support +++ a/drivers/mmc/host/sdhci.h @@ -72,6 +72,7 @@ #define SDHCI_CTRL_ADMA1 0x08 #define SDHCI_CTRL_ADMA32 0x10 #define SDHCI_CTRL_ADMA64 0x18 +#define SDHCI_CTRL_8BITBUS 0x20 #define SDHCI_POWER_CONTROL 0x29 #define SDHCI_POWER_ON 0x01