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 1YTdhb-00086o-Nx for barebox@lists.infradead.org; Thu, 05 Mar 2015 21:53:10 +0000 Received: from tellur.intern.lynxeye.de (p57B5E414.dip0.t-ipconnect.de [87.181.228.20]) by lynxeye.de (Postfix) with ESMTPA id 1463026C2013 for ; Thu, 5 Mar 2015 22:50:31 +0100 (CET) From: Lucas Stach Date: Thu, 5 Mar 2015 22:50:09 +0100 Message-Id: <1425592221-23774-19-git-send-email-dev@lynxeye.de> In-Reply-To: <1425592221-23774-1-git-send-email-dev@lynxeye.de> References: <1425592221-23774-1-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 v2 15/27] net: at91_ether: 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/net/at91_ether.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/at91_ether.c b/drivers/net/at91_ether.c index 9597639..5a74837 100644 --- a/drivers/net/at91_ether.c +++ b/drivers/net/at91_ether.c @@ -35,7 +35,6 @@ #include #include #include -#include #include #include "at91_ether.h" @@ -200,7 +199,8 @@ static int at91_ether_send(struct eth_device *edev, void *packet, int length) { while (!(at91_emac_read(AT91_EMAC_TSR) & AT91_EMAC_TSR_BNQ)); - dma_flush_range((ulong) packet, (ulong)packet + length); + dma_sync_single_for_device((unsigned long)packet, length, DMA_TO_DEVICE); + /* Set address of the data in the Transmit Address register */ at91_emac_write(AT91_EMAC_TAR, (unsigned long) packet); /* Set length of the packet in the Transmit Control register */ @@ -211,6 +211,8 @@ static int at91_ether_send(struct eth_device *edev, void *packet, int length) at91_emac_write(AT91_EMAC_TSR, at91_emac_read(AT91_EMAC_TSR) | AT91_EMAC_TSR_COMP); + dma_sync_single_for_cpu((unsigned long)packet, length, DMA_TO_DEVICE); + return 0; } @@ -225,7 +227,11 @@ static int at91_ether_rx(struct eth_device *edev) size = rbfp->size & RBF_SIZE; + dma_sync_single_for_cpu((unsigned long)rbfp->addr, size, + DMA_FROM_DEVICE); net_receive(edev, (unsigned char *)(rbfp->addr & RBF_ADDR), size); + dma_sync_single_for_device((unsigned long)rbfp->addr, size, + DMA_FROM_DEVICE); rbfp->addr &= ~RBF_OWNER; if (rbfp->addr & RBF_WRAP) -- 2.1.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox