Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755935Ab0KKL0P (ORCPT ); Thu, 11 Nov 2010 06:26:15 -0500 Received: from am1ehsobe002.messaging.microsoft.com ([213.199.154.205]:13733 "EHLO AM1EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755564Ab0KKL0O (ORCPT ); Thu, 11 Nov 2010 06:26:14 -0500 X-SpamScore: 0 X-BigFish: VS0(zzzz1202hzz8275bhz2dh2a8h668h61h) X-Spam-TCS-SCL: 0:0 X-Forefront-Antispam-Report: KIP:(null);UIP:(null);IPVD:NLI;H:de01egw01.freescale.net;RD:de01egw01.freescale.net;EFVD:NLI From: Li Yang To: CC: , , , Li Yang Subject: [PATCH v2] fsldma: add support to 36-bit physical address Date: Thu, 11 Nov 2010 20:16:29 +0800 Message-ID: <1289477789-10651-1-git-send-email-leoli@freescale.com> X-Mailer: git-send-email 1.6.6-rc1.GIT X-OriginalArrivalTime: 11 Nov 2010 11:26:51.0926 (UTC) FILETIME=[565C5B60:01CB8193] MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: freescale.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1338 Lines: 42 Expand the dma_mask of fsldma device to 36-bit, indicating that the DMA engine can deal with 36-bit physical address and does not need the SWIOTLB to create bounce buffer for it when doing dma_map_*(). Signed-off-by: Li Yang --- Add more detailed commit message drivers/dma/fsldma.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index cea08be..8c79b37 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -1,7 +1,7 @@ /* * Freescale MPC85xx, MPC83xx DMA Engine support * - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. + * Copyright (C) 2007-2010 Freescale Semiconductor, Inc. All rights reserved. * * Author: * Zhang Wei , Jul 2007 @@ -1338,6 +1338,8 @@ static int __devinit fsldma_of_probe(struct platform_device *op, fdev->common.device_control = fsl_dma_device_control; fdev->common.dev = &op->dev; + dma_set_mask(&(op->dev), DMA_BIT_MASK(36)); + dev_set_drvdata(&op->dev, fdev); /* -- 1.6.6-rc1.GIT -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/