diff options
| -rw-r--r-- | drivers/net/zynq_gem.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 5f2f87d352c..cfd14665a70 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -578,6 +578,7 @@ static int zynq_gem_free_pkt(struct udevice *dev, uchar *packet, int length) struct zynq_gem_priv *priv = dev_get_priv(dev); struct emac_bd *current_bd = &priv->rx_bd[priv->rxbd_current]; struct emac_bd *first_bd; + dma_addr_t addr; if (current_bd->status & ZYNQ_GEM_RXBUF_SOF_MASK) { priv->rx_first_buf = priv->rxbd_current; @@ -592,6 +593,17 @@ static int zynq_gem_free_pkt(struct udevice *dev, uchar *packet, int length) first_bd->status = 0xF0000000; } + /* Flush the cache for the packet as well */ +#if defined(CONFIG_PHYS_64BIT) + addr = (dma_addr_t)((current_bd->addr & ZYNQ_GEM_RXBUF_ADD_MASK) + | ((dma_addr_t)current_bd->addr_hi << 32)); +#else + addr = current_bd->addr & ZYNQ_GEM_RXBUF_ADD_MASK; +#endif + flush_dcache_range(addr, addr + roundup(PKTSIZE_ALIGN, + ARCH_DMA_MINALIGN)); + barrier(); + if ((++priv->rxbd_current) >= RX_BUF) priv->rxbd_current = 0; |