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authorMarkLee <Mark-MC.Lee@mediatek.com>2019-11-13 05:38:44 +0300
committerDavid S. Miller <davem@davemloft.net>2019-11-15 02:13:28 +0300
commit8d66a8183d0cc3a3667f9e179999736fad4519f3 (patch)
tree8c3b10fd674fc09286a2e2b16423452f14c7daaf /drivers/net/ethernet/mediatek/mtk_eth_soc.c
parent5ac9eda060c74aaa399d0c3ddd6bc244c8e2de96 (diff)
downloadlinux-8d66a8183d0cc3a3667f9e179999736fad4519f3.tar.xz
net: ethernet: mediatek: Enable GDM GDMA_DROP_ALL mode
Enable GDM GDMA_DROP_ALL mode to drop all packet during the stop operation. This is recommended by the mt762x HW design to drop all packet from GMAC before stopping PDMA. Signed-off-by: MarkLee <Mark-MC.Lee@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mediatek/mtk_eth_soc.c')
-rw-r--r--drivers/net/ethernet/mediatek/mtk_eth_soc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index bb9e260d34e4..1923ba76a1ec 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2279,6 +2279,8 @@ static int mtk_stop(struct net_device *dev)
if (!refcount_dec_and_test(&eth->dma_refcnt))
return 0;
+ mtk_gdm_config(eth, MTK_GDMA_DROP_ALL);
+
mtk_tx_irq_disable(eth, MTK_TX_DONE_INT);
mtk_rx_irq_disable(eth, MTK_RX_DONE_INT);
napi_disable(&eth->tx_napi);