diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/macb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/macb.c b/drivers/net/macb.c index ab0d1af30b..ea8ae82dfd 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -120,6 +120,11 @@ static int macb_send(struct eth_device *edev, void *packet, barrier(); writel(MACB_BIT(TE) | MACB_BIT(RE) | MACB_BIT(TSTART), macb->regs + MACB_NCR); + wait_on_timeout(100 * MSECOND, + !(macb->tx_ring[0].ctrl & TXBUF_USED)); + + ctrl = macb->tx_ring[0].ctrl; + if (ctrl & TXBUF_UNDERRUN) printf("TX underrun\n"); if (ctrl & TXBUF_EXHAUSTED) |