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--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2210,6 +2210,31 @@ static int mtk_start_dma(struct mtk_eth
return 0;
}
+static void mtk_gdm_config(struct mtk_eth *eth, u32 config)
+{
+ int i;
+
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
+ return;
+
+ for (i = 0; i < MTK_MAC_COUNT; i++) {
+ u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
+
+ /* default setup the forward port to send frame to PDMA */
+ val &= ~0xffff;
+
+ /* Enable RX checksum */
+ val |= MTK_GDMA_ICS_EN | MTK_GDMA_TCS_EN | MTK_GDMA_UCS_EN;
+
+ val |= config;
+
+ mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
+ }
+ /* Reset and enable PSE */
+ mtk_w32(eth, RST_GL_PSE, MTK_RST_GL);
+ mtk_w32(eth, 0, MTK_RST_GL);
+}
+
static int mtk_open(struct net_device *dev)
{
struct mtk_mac *mac = netdev_priv(dev);
@@ -2230,6 +2255,8 @@ static int mtk_open(struct net_device *d
if (err)
return err;
+ mtk_gdm_config(eth, MTK_GDMA_TO_PDMA);
+
napi_enable(ð->tx_napi);
napi_enable(ð->rx_napi);
mtk_tx_irq_enable(eth, MTK_TX_DONE_INT);
@@ -2285,6 +2312,8 @@ 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);
@@ -2411,8 +2440,6 @@ static int mtk_hw_init(struct mtk_eth *e
mtk_w32(eth, 0, MTK_QDMA_DELAY_INT);
mtk_tx_irq_disable(eth, ~0);
mtk_rx_irq_disable(eth, ~0);
- mtk_w32(eth, RST_GL_PSE, MTK_RST_GL);
- mtk_w32(eth, 0, MTK_RST_GL);
/* FE int grouping */
mtk_w32(eth, MTK_TX_DONE_INT, MTK_PDMA_INT_GRP1);
@@ -2421,19 +2448,6 @@ static int mtk_hw_init(struct mtk_eth *e
mtk_w32(eth, MTK_RX_DONE_INT, MTK_QDMA_INT_GRP2);
mtk_w32(eth, 0x21021000, MTK_FE_INT_GRP);
- for (i = 0; i < MTK_MAC_COUNT; i++) {
- u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i));
-
- /* setup the forward port to send frame to PDMA */
- val &= ~0xffff;
-
- /* Enable RX checksum */
- val |= MTK_GDMA_ICS_EN | MTK_GDMA_TCS_EN | MTK_GDMA_UCS_EN;
-
- /* setup the mac dma */
- mtk_w32(eth, val, MTK_GDMA_FWD_CFG(i));
- }
-
return 0;
err_disable_pm:
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -84,6 +84,8 @@
#define MTK_GDMA_ICS_EN BIT(22)
#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))
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