提交 dec2165f 编写于 作者: S Sonic Zhang 提交者: David S. Miller

stmmac: hardware TX COE doesn't work when force_thresh_dma_mode is set

Clear the TX COE bit when force_thresh_dma_mode is set even hardware
dma capability says support.

Tested on BF609.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Acked-by: NGiuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 c405abe2
......@@ -2755,7 +2755,11 @@ static int stmmac_hw_init(struct stmmac_priv *priv)
priv->plat->enh_desc = priv->dma_cap.enh_desc;
priv->plat->pmt = priv->dma_cap.pmt_remote_wake_up;
priv->plat->tx_coe = priv->dma_cap.tx_coe;
/* TXCOE doesn't work in thresh DMA mode */
if (priv->plat->force_thresh_dma_mode)
priv->plat->tx_coe = 0;
else
priv->plat->tx_coe = priv->dma_cap.tx_coe;
if (priv->dma_cap.rx_coe_type2)
priv->plat->rx_coe = STMMAC_RX_COE_TYPE2;
......
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