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net: davinci_emac: convert to streaming DMA ops 

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 <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Lucas Stach 2015-03-05 22:50:10 +01:00 committed by Sascha Hauer
parent 575c78c267
commit 4c64171ad9
1 changed files with 5 additions and 4 deletions
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9
drivers/net/davinci_emac.c
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@ -40,12 +40,12 @@
*/
#include <common.h>
#include <dma.h>
#include <io.h>
#include <clock.h>
#include <net.h>
#include <malloc.h>
#include <init.h>
#include <asm/mmu.h>
#include <asm/system.h>
#include <linux/phy.h>
#include <mach/emac_defs.h>
@ -411,7 +411,7 @@ static int davinci_emac_send(struct eth_device *edev, void *packet, int length)
EMAC_CPPI_OWNERSHIP_BIT |
EMAC_CPPI_EOP_BIT),
priv->emac_tx_desc + EMAC_DESC_PKT_FLAG_LEN);
dma_flush_range((ulong) packet, (ulong)packet + length);
dma_sync_single_for_device((unsigned long)packet, length, DMA_TO_DEVICE);
/* Send the packet */
writel(BD_TO_HW(priv->emac_tx_desc), priv->adap_emac + EMAC_TX0HDP);
@ -429,6 +429,7 @@ static int davinci_emac_send(struct eth_device *edev, void *packet, int length)
break;
}
}
dma_sync_single_for_cpu((unsigned long)packet, length, DMA_TO_DEVICE);
dev_dbg(priv->dev, "- emac_send (ret_status %i)\n", ret_status);
return ret_status;
@ -460,9 +461,9 @@ static int davinci_emac_recv(struct eth_device *edev)
pkt = (unsigned char *)readl(rx_curr_desc + EMAC_DESC_BUFFER);
len = readl(rx_curr_desc + EMAC_DESC_BUFF_OFF_LEN) & 0xffff;
dev_dbg(priv->dev, "| emac_recv got packet (length %i)\n", len);
dma_inv_range((ulong)pkt,
(ulong)readl(rx_curr_desc + EMAC_DESC_BUFFER) + len);
dma_sync_single_for_cpu((unsigned long)pkt, len, DMA_FROM_DEVICE);
net_receive(edev, pkt, len);
dma_sync_single_for_device((unsigned long)pkt, len, DMA_FROM_DEVICE);
ret = len;
}