diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/cpsw.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/net/cpsw.c b/drivers/net/cpsw.c index e2395dbeb9..9919d3919f 100644 --- a/drivers/net/cpsw.c +++ b/drivers/net/cpsw.c @@ -910,8 +910,22 @@ out: return ret; } +static int cpsw_reap_completed_packets(struct cpsw_priv *priv) +{ + int timeout = CPDMA_TIMEOUT; + + /* reap completed packets */ + while (timeout-- && + (cpdma_process(priv, &priv->tx_chan, NULL, NULL) >= 0)) + ; + + return timeout; +} + static void _cpsw_halt(struct cpsw_priv *priv) { + cpsw_reap_completed_packets(priv); + writel(0, priv->dma_regs + CPDMA_TXCONTROL); writel(0, priv->dma_regs + CPDMA_RXCONTROL); @@ -925,18 +939,12 @@ static void _cpsw_halt(struct cpsw_priv *priv) static int _cpsw_send(struct cpsw_priv *priv, void *packet, int length) { - void *buffer; - int len; - int timeout = CPDMA_TIMEOUT; + int timeout; flush_dcache_range((unsigned long)packet, (unsigned long)packet + ALIGN(length, PKTALIGN)); - /* first reap completed packets */ - while (timeout-- && - (cpdma_process(priv, &priv->tx_chan, &buffer, &len) >= 0)) - ; - + timeout = cpsw_reap_completed_packets(priv); if (timeout == -1) { printf("cpdma_process timeout\n"); return -ETIMEDOUT; |