diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/zynq_gem.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 946dc1b6a9..1b5b6fd942 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -46,6 +46,7 @@ /* Wrap bit, last descriptor */ #define ZYNQ_GEM_TXBUF_WRAP_MASK 0x40000000 #define ZYNQ_GEM_TXBUF_LAST_MASK 0x00008000 /* Last buffer */ +#define ZYNQ_GEM_TXBUF_USED_MASK 0x80000000 /* Used by Hw */ #define ZYNQ_GEM_NWCTRL_TXEN_MASK 0x00000008 /* Enable transmit */ #define ZYNQ_GEM_NWCTRL_RXEN_MASK 0x00000004 /* Enable receive */ @@ -405,14 +406,19 @@ static int zynq_gem_send(struct eth_device *dev, void *ptr, int len) u32 addr, size; struct zynq_gem_priv *priv = dev->priv; struct zynq_gem_regs *regs = (struct zynq_gem_regs *)dev->iobase; + struct emac_bd *current_bd = &priv->tx_bd[1]; /* Setup Tx BD */ memset(priv->tx_bd, 0, sizeof(struct emac_bd)); priv->tx_bd->addr = (ulong)ptr; priv->tx_bd->status = (len & ZYNQ_GEM_TXBUF_FRMLEN_MASK) | - ZYNQ_GEM_TXBUF_LAST_MASK | - ZYNQ_GEM_TXBUF_WRAP_MASK; + ZYNQ_GEM_TXBUF_LAST_MASK; + /* Dummy descriptor to mark it as the last in descriptor chain */ + current_bd->addr = 0x0; + current_bd->status = ZYNQ_GEM_TXBUF_WRAP_MASK | + ZYNQ_GEM_TXBUF_LAST_MASK| + ZYNQ_GEM_TXBUF_USED_MASK; /* setup BD */ writel((ulong)priv->tx_bd, ®s->txqbase); |
