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net: at91_ether: 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 22:50:09 +01:00 committed by Sascha Hauer
parent d8967a857c
commit 575c78c267
1 changed files with 8 additions and 2 deletions
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10
drivers/net/at91_ether.c
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@ -35,7 +35,6 @@
#include <linux/clk.h>
#include <linux/mii.h>
#include <errno.h>
#include <asm/mmu.h>
#include <linux/phy.h>
#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)