Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756117Ab2BMDhB (ORCPT ); Sun, 12 Feb 2012 22:37:01 -0500 Received: from ch1ehsobe003.messaging.microsoft.com ([216.32.181.183]:46164 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754097Ab2BMDg7 (ORCPT ); Sun, 12 Feb 2012 22:36:59 -0500 X-SpamScore: 3 X-BigFish: VS3(zzzz1202h1082kzzz2dh2a8h668h839h) X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPV:NLI;H:mail.freescale.net;RD:none;EFVD:NLI From: Huang Shijie To: CC: , , , , , , , , , , , , Huang Shijie Subject: [PATCH v4 0/2] patch set about the MXS-DMA Date: Mon, 13 Feb 2012 11:38:21 +0800 Message-ID: <1329104303-13566-1-git-send-email-b32955@freescale.com> X-Mailer: git-send-email 1.7.3.2 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: 2560 Lines: 59 patch 1: move the mxs dma header to a more common place. Beside the mx23/mx28, the apbh-dma is also used by MX50 and MX6Q. So move the mxs dma header file to a more common place, and rename it to mxs-dma.h patch 2: rewrite the last parameter of mxs_dma_prep_slave_sg(). In the new GPMI version, some hardware behavior changes. The WAIT4END bit should be set in the middle one of the ECC READ page DMA chain. The DMA chain should be set like this: +-----+ +-----+ +-----+ | cmd | ------------> | cmd | ------------------> | cmd | +-----+ +-----+ +-----+ ^ ^ | | | | set WAIT4END here too set WAIT4END here So rewrite the last parameter of mxs_dma_prep_slave_sg(), use the dma_ctrl_flags to set the proper DMA bit for DMA Command Structure. And change the relative drivers with the dma_ctrl_flags. TEST: Tested the mxs-mmc driver and gpmi-nand drive with the two patches in MX28 board. v3 --> v4: [1] create a new folder include/linux/fsl/ for store the Freescale's header files. [2] add more CCs. v2 --> v3: [1] remove field gpmi_version, use GPMI_IS_MX6Q() instead. v1 --> v2: [1] squash the trial patches into single patch. [2] use the dma_ctrl_flags. Huang Shijie (2): mxs-dma : move the mxs dma.h to a more common place mxs-dma : rewrite the last parameter of mxs_dma_prep_slave_sg() drivers/dma/mxs-dma.c | 34 +++++++++++++++++--- drivers/mmc/host/mxs-mmc.c | 12 +++--- drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 24 ++++++++++--- drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 2 +- .../mach/dma.h => include/linux/fsl/mxs-dma.h | 0 sound/soc/mxs/mxs-pcm.c | 2 +- sound/soc/mxs/mxs-pcm.h | 2 +- sound/soc/mxs/mxs-saif.c | 2 +- 8 files changed, 57 insertions(+), 21 deletions(-) rename arch/arm/mach-mxs/include/mach/dma.h => include/linux/fsl/mxs-dma.h (100%) -- 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/