diff options
Diffstat (limited to 'drivers/net/bcmgenet.c')
| -rw-r--r-- | drivers/net/bcmgenet.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/net/bcmgenet.c b/drivers/net/bcmgenet.c index 11b6148ab6..1b7e7ba2bf 100644 --- a/drivers/net/bcmgenet.c +++ b/drivers/net/bcmgenet.c @@ -378,8 +378,6 @@ static void rx_descs_init(struct bcmgenet_eth_priv *priv) u32 len_stat, i; void *desc_base = priv->rx_desc_base; - priv->c_index = 0; - len_stat = (RX_BUF_LENGTH << DMA_BUFLENGTH_SHIFT) | DMA_OWN; for (i = 0; i < RX_DESCS; i++) { @@ -403,8 +401,11 @@ static void rx_ring_init(struct bcmgenet_eth_priv *priv) writel(RX_DESCS * DMA_DESC_SIZE / 4 - 1, priv->mac_reg + RDMA_RING_REG_BASE + DMA_END_ADDR); - writel(0x0, priv->mac_reg + RDMA_PROD_INDEX); - writel(0x0, priv->mac_reg + RDMA_CONS_INDEX); + /* cannot init RDMA_PROD_INDEX to 0, so align RDMA_CONS_INDEX on it instead */ + priv->c_index = readl(priv->mac_reg + RDMA_PROD_INDEX); + writel(priv->c_index, priv->mac_reg + RDMA_CONS_INDEX); + priv->rx_index = priv->c_index; + priv->rx_index &= 0xFF; writel((RX_DESCS << DMA_RING_SIZE_SHIFT) | RX_BUF_LENGTH, priv->mac_reg + RDMA_RING_REG_BASE + DMA_RING_BUF_SIZE); writel(DMA_FC_THRESH_VALUE, priv->mac_reg + RDMA_XON_XOFF_THRESH); @@ -421,8 +422,10 @@ static void tx_ring_init(struct bcmgenet_eth_priv *priv) writel(0x0, priv->mac_reg + TDMA_WRITE_PTR); writel(TX_DESCS * DMA_DESC_SIZE / 4 - 1, priv->mac_reg + TDMA_RING_REG_BASE + DMA_END_ADDR); - writel(0x0, priv->mac_reg + TDMA_PROD_INDEX); - writel(0x0, priv->mac_reg + TDMA_CONS_INDEX); + /* cannot init TDMA_CONS_INDEX to 0, so align TDMA_PROD_INDEX on it instead */ + priv->tx_index = readl(priv->mac_reg + TDMA_CONS_INDEX); + writel(priv->tx_index, priv->mac_reg + TDMA_PROD_INDEX); + priv->tx_index &= 0xFF; writel(0x1, priv->mac_reg + TDMA_RING_REG_BASE + DMA_MBUF_DONE_THRESH); writel(0x0, priv->mac_reg + TDMA_FLOW_PERIOD); writel((TX_DESCS << DMA_RING_SIZE_SHIFT) | RX_BUF_LENGTH, @@ -469,8 +472,6 @@ static int bcmgenet_gmac_eth_start(struct udevice *dev) priv->tx_desc_base = priv->mac_reg + GENET_TX_OFF; priv->rx_desc_base = priv->mac_reg + GENET_RX_OFF; - priv->tx_index = 0x0; - priv->rx_index = 0x0; bcmgenet_umac_reset(priv); |