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Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/pcnet.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/pcnet.c b/drivers/net/pcnet.c
index 843a6fc..7b87660 100644
--- a/drivers/net/pcnet.c
+++ b/drivers/net/pcnet.c
@@ -364,6 +364,7 @@ static int pcnet_init(struct eth_device *dev, bd_t *bis)
RX_RING_LEN_BITS);
lp->init_block.rx_ring = PCI_TO_MEM_LE(dev, lp->rx_ring);
lp->init_block.tx_ring = PCI_TO_MEM_LE(dev, lp->tx_ring);
+ flush_dcache_range((unsigned long)lp, (unsigned long)&lp->rx_buf);
PCNET_DEBUG1("\ntlen_rlen=0x%x rx_ring=0x%x tx_ring=0x%x\n",
lp->init_block.tlen_rlen,
@@ -407,8 +408,13 @@ static int pcnet_send(struct eth_device *dev, void *packet, int pkt_len)
PCNET_DEBUG2("Tx%d: %d bytes from 0x%p ", lp->cur_tx, pkt_len,
packet);
+ flush_dcache_range((unsigned long)packet,
+ (unsigned long)packet + pkt_len);
+
/* Wait for completion by testing the OWN bit */
for (i = 1000; i > 0; i--) {
+ invalidate_dcache_range((unsigned long)entry,
+ (unsigned long)entry + sizeof(*entry));
status = le16_to_cpu(entry->status);
if ((status & 0x8000) == 0)
break;
@@ -431,6 +437,8 @@ static int pcnet_send(struct eth_device *dev, void *packet, int pkt_len)
entry->misc = 0x00000000;
entry->base = PCI_TO_MEM_LE(dev, packet);
entry->status = cpu_to_le16(status);
+ flush_dcache_range((unsigned long)entry,
+ (unsigned long)entry + sizeof(*entry));
/* Trigger an immediate send poll. */
pcnet_write_csr(dev, 0, 0x0008);
@@ -451,6 +459,8 @@ static int pcnet_recv (struct eth_device *dev)
while (1) {
entry = &lp->rx_ring[lp->cur_rx];
+ invalidate_dcache_range((unsigned long)entry,
+ (unsigned long)entry + sizeof(*entry));
/*
* If we own the next entry, it's a new packet. Send it up.
*/
@@ -479,6 +489,10 @@ static int pcnet_recv (struct eth_device *dev)
printf("%s: Rx%d: invalid packet length %d\n",
dev->name, lp->cur_rx, pkt_len);
} else {
+ invalidate_dcache_range(
+ (unsigned long)lp->rx_buf[lp->cur_rx],
+ (unsigned long)lp->rx_buf[lp->cur_rx] +
+ pkt_len);
NetReceive(lp->rx_buf[lp->cur_rx], pkt_len);
PCNET_DEBUG2("Rx%d: %d bytes from 0x%p\n",
lp->cur_rx, pkt_len,
@@ -486,6 +500,8 @@ static int pcnet_recv (struct eth_device *dev)
}
}
entry->status |= cpu_to_le16(0x8000);
+ flush_dcache_range((unsigned long)entry,
+ (unsigned long)entry + sizeof(*entry));
if (++lp->cur_rx >= RX_RING_SIZE)
lp->cur_rx = 0;