diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch b/target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch new file mode 100644 index 0000000000..cdcd6a1a33 --- /dev/null +++ b/target/linux/generic/backport-5.4/761-net-ethernet-mediatek-Refine-the-timing-of-GDM-PSE-s.patch @@ -0,0 +1,45 @@ +From: MarkLee <Mark-MC.Lee@mediatek.com> +Date: Wed, 13 Nov 2019 10:38:43 +0800 +Subject: [PATCH] net: ethernet: mediatek: Refine the timing of GDM/PSE setup + +Refine the timing of GDM/PSE setup, move it from mtk_hw_init +to mtk_open. This is recommended by the mt762x HW design to +do GDM/PSE setup only after PDMA has been started. + +We exclude mt7628 in mtk_gdm_config function since it is a old IP +and there is no GDM/PSE block on it. + +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 +@@ -2215,6 +2215,9 @@ static void mtk_gdm_config(struct mtk_et + { + 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)); + +@@ -2253,6 +2256,8 @@ 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); +@@ -2436,8 +2441,6 @@ 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); + +- mtk_gdm_config(eth, MTK_GDMA_TO_PDMA); +- + return 0; + + err_disable_pm: |