From: MarkLee 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 Signed-off-by: David S. Miller --- --- 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: