diff options
| author | Sonic Zhang <sonic.zhang@analog.com> | 2015-01-22 14:55:57 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-26 15:48:01 -0800 |
| commit | dec2165ff38a99f937fe61875d102c6c8596c815 (patch) | |
| tree | ef8058cb2b79fa11fa93f02dcb89d78f1ed6aa06 /drivers | |
| parent | c405abe2e0623b7841a88d43add2c7c9bc3e74a9 (diff) | |
| download | linux-dec2165ff38a99f937fe61875d102c6c8596c815.tar.bz2 | |
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: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 6e2a8fa07da5..5ef493aa5387 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -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; |