diff options
| author | MarkLee <Mark-MC.Lee@mediatek.com> | 2019-11-13 10:38:44 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-11-14 15:13:28 -0800 |
| commit | 8d66a8183d0cc3a3667f9e179999736fad4519f3 (patch) | |
| tree | 8c3b10fd674fc09286a2e2b16423452f14c7daaf /drivers/net | |
| parent | 5ac9eda060c74aaa399d0c3ddd6bc244c8e2de96 (diff) | |
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')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 |
2 files changed, 3 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(ð->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(ð->tx_napi); diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index b16d8d9b196a..85830fe14a1b 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -85,6 +85,7 @@ #define MTK_GDMA_TCS_EN BIT(21) #define MTK_GDMA_UCS_EN BIT(20) #define MTK_GDMA_TO_PDMA 0x0 +#define MTK_GDMA_DROP_ALL 0x7777 /* Unicast Filter MAC Address Register - Low */ #define MTK_GDMA_MAC_ADRL(x) (0x508 + (x * 0x1000)) |