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@xxxxxxxxxx>
---
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 2ef24cc..d596834 100644
--- a/drivers/net/at91_ether.c
+++ b/drivers/net/at91_ether.c
@@ -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)
--
2.1.0
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