mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 08:51:13 +00:00
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
|
From: MarkLee <Mark-MC.Lee@mediatek.com>
|
||
|
|
Date: Wed, 13 Nov 2019 10:38:44 +0800
|
||
|
|
Subject: [PATCH] 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>
|
||
|
|
---
|
||
|
|
|
||
|
|
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
|
||
|
|
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
|
||
|
|
@@ -2310,6 +2310,8 @@ static int mtk_stop(struct net_device *d
|
||
|
|
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);
|
||
|
|
--- 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))
|