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 13:19:14 +0000 Received: from tellur.intern.lynxeye.de (p57B5E414.dip0.t-ipconnect.de [87.181.228.20]) by lynxeye.de (Postfix) with ESMTPA id BF33A26C200A for ; Sun, 1 Mar 2015 14:17:28 +0100 (CET) From: Lucas Stach Date: Sun, 1 Mar 2015 14:17:07 +0100 Message-Id: <1425215842-6982-10-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 09/24] MCI: tegra-sdmmc: 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/tegra-sdmmc.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/mci/tegra-sdmmc.c b/drivers/mci/tegra-sdmmc.c index 0e23d6f..670c280 100644 --- a/drivers/mci/tegra-sdmmc.c +++ b/drivers/mci/tegra-sdmmc.c @@ -17,10 +17,10 @@ * along with this program. If not, see . */ -#include #include #include #include +#include #include #include #include @@ -100,6 +100,7 @@ static int tegra_sdmmc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, struct mci_data *data) { struct tegra_sdmmc_host *host = to_tegra_sdmmc_host(mci); + unsigned int num_bytes = 0; u32 val = 0; int ret; @@ -109,15 +110,15 @@ static int tegra_sdmmc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, /* Set up for a data transfer if we have one */ if (data) { + num_bytes = data->blocks * data->blocksize; + if (data->flags & MMC_DATA_WRITE) { - dma_flush_range((unsigned long)data->src, - (unsigned long)(data->src + - data->blocks * 512)); + dma_sync_single_for_device((unsigned long)data->src, + num_bytes, DMA_TO_DEVICE); writel((u32)data->src, host->regs + SDHCI_DMA_ADDRESS); } else { - dma_clean_range((unsigned long)data->src, - (unsigned long)(data->src + - data->blocks * 512)); + dma_sync_single_for_device((unsigned long)data->dest, + num_bytes, DMA_FROM_DEVICE); writel((u32)data->dest, host->regs + SDHCI_DMA_ADDRESS); } @@ -255,11 +256,12 @@ static int tegra_sdmmc_send_cmd(struct mci_host *mci, struct mci_cmd *cmd, } writel(val, host->regs + SDHCI_INT_STATUS); - 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); } return 0; -- 2.1.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox