[U-Boot] [PATCH 4/4] net: macb: Drop local cache flush

[Vignesh Raghavendra]

Now that arch specific dma mapping APIs take care of cache
flush/invalidate, drop local cache flush operation.

Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
---
 drivers/net/macb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index 1a532b0e5a4f..1ded76b6d7b6 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -331,8 +331,6 @@ static int _macb_send(struct macb_device *macb, const char *name, void *packet,
 	macb->tx_ring[tx_head].addr = paddr;
 	barrier();
 	macb_flush_ring_desc(macb, TX);
-	/* Do we need check paddr and length is dcache line aligned? */
-	flush_dcache_range(paddr, paddr + ALIGN(length, ARCH_DMA_MINALIGN));
 	macb_writel(macb, NCR, MACB_BIT(TE) | MACB_BIT(RE) | MACB_BIT(TSTART));
 
 	/*
@@ -348,7 +346,7 @@ static int _macb_send(struct macb_device *macb, const char *name, void *packet,
 		udelay(1);
 	}
 
-	dma_unmap_single(packet, length, paddr);
+	dma_unmap_single(packet, length, DMA_TO_DEVICE);
 
 	if (i <= MACB_TX_TIMEOUT) {
 		if (ctrl & MACB_BIT(TX_UNDERRUN))
-- 
2.24.0