From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from ns.lynxeye.de ([87.118.118.114] helo=lynxeye.de) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YS3m3-0007iY-Jv for barebox@lists.infradead.org; Sun, 01 Mar 2015 13:19:16 +0000 Received: from tellur.intern.lynxeye.de (p57B5E414.dip0.t-ipconnect.de [87.181.228.20]) by lynxeye.de (Postfix) with ESMTPA id 655E326C2009 for ; Sun, 1 Mar 2015 14:17:28 +0100 (CET) From: Lucas Stach Date: Sun, 1 Mar 2015 14:17:06 +0100 Message-Id: <1425215842-6982-9-git-send-email-dev@lynxeye.de> In-Reply-To: <1425215842-6982-1-git-send-email-dev@lynxeye.de> References: <1425215842-6982-1-git-send-email-dev@lynxeye.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 08/24] MCI: imx: convert to streaming DMA ops To: barebox@lists.infradead.org Move to the common streaming DMA ops in order to get rid of the direct usage of the ARM MMU functions for the cache maintenance. Signed-off-by: Lucas Stach --- drivers/mci/imx-esdhc.c | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) diff --git a/drivers/mci/imx-esdhc.c b/drivers/mci/imx-esdhc.c index 23bdc1f..8b45500 100644 --- a/drivers/mci/imx-esdhc.c +++ b/drivers/mci/imx-esdhc.c @@ -22,6 +22,7 @@ */ #include #include +#include #include #include #include @@ -31,7 +32,6 @@ #include #include #include -#include #include #include #include @@ -211,6 +211,7 @@ esdhc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, struct mci_data *data) u32 irqstat; struct fsl_esdhc_host *host = to_fsl_esdhc(mci); void __iomem *regs = host->regs; + unsigned int num_bytes = 0; int ret; esdhc_write32(regs + SDHCI_INT_STATUS, -1); @@ -225,12 +226,15 @@ esdhc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, struct mci_data *data) err = esdhc_setup_data(mci, data); if(err) return err; - if (data->flags & MMC_DATA_WRITE) { - dma_flush_range((unsigned long)data->src, - (unsigned long)(data->src + data->blocks * 512)); - } else - dma_clean_range((unsigned long)data->src, - (unsigned long)(data->src + data->blocks * 512)); + + num_bytes = data->blocks * data->blocksize; + + if (data->flags & MMC_DATA_WRITE) + dma_sync_single_for_device((unsigned long)data->src, + num_bytes, DMA_TO_DEVICE); + else + dma_sync_single_for_device((unsigned long)data->dest, + num_bytes, DMA_FROM_DEVICE); } @@ -313,10 +317,12 @@ esdhc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, struct mci_data *data) } while (!(irqstat & IRQSTAT_TC) && (esdhc_read32(regs + SDHCI_PRESENT_STATE) & PRSSTAT_DLA)); - if (data->flags & MMC_DATA_READ) { - dma_inv_range((unsigned long)data->dest, - (unsigned long)(data->dest + data->blocks * 512)); - } + if (data->flags & MMC_DATA_WRITE) + dma_sync_single_for_cpu((unsigned long)data->src, + num_bytes, DMA_TO_DEVICE); + else + dma_sync_single_for_cpu((unsigned long)data->dest, + num_bytes, DMA_FROM_DEVICE); #endif } -- 2.1.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox