diff options
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 71 |
1 files changed, 24 insertions, 47 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c index e400cbdc3419..bf2562995fc8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c @@ -44,7 +44,6 @@ struct mac_delay_struct { u32 rx_delay; bool tx_inv; bool rx_inv; - bool fine_tune; }; struct mediatek_dwmac_plat_data { @@ -105,16 +104,28 @@ static int mt2712_set_interface(struct mediatek_dwmac_plat_data *plat) return 0; } -static void mt2712_delay_ps2stage(struct mac_delay_struct *mac_delay) +static void mt2712_delay_ps2stage(struct mediatek_dwmac_plat_data *plat) { - if (mac_delay->fine_tune) { - /* 170ps per stage for fine tune delay macro circuit*/ - mac_delay->tx_delay /= 170; - mac_delay->rx_delay /= 170; - } else { - /* 550ps per stage for coarse tune delay macro circuit*/ + struct mac_delay_struct *mac_delay = &plat->mac_delay; + + switch (plat->phy_mode) { + case PHY_INTERFACE_MODE_MII: + case PHY_INTERFACE_MODE_RMII: + /* 550ps per stage for MII/RMII */ mac_delay->tx_delay /= 550; mac_delay->rx_delay /= 550; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_ID: + /* 170ps per stage for RGMII */ + mac_delay->tx_delay /= 170; + mac_delay->rx_delay /= 170; + break; + default: + dev_err(plat->dev, "phy interface not supported\n"); + break; } } @@ -123,7 +134,7 @@ static int mt2712_set_delay(struct mediatek_dwmac_plat_data *plat) struct mac_delay_struct *mac_delay = &plat->mac_delay; u32 delay_val = 0, fine_val = 0; - mt2712_delay_ps2stage(mac_delay); + mt2712_delay_ps2stage(plat); switch (plat->phy_mode) { case PHY_INTERFACE_MODE_MII: @@ -167,13 +178,10 @@ static int mt2712_set_delay(struct mediatek_dwmac_plat_data *plat) fine_val = ETH_RMII_DLY_TX_INV; break; case PHY_INTERFACE_MODE_RGMII: - /* the PHY is not responsible for inserting any internal - * delay by itself in PHY_INTERFACE_MODE_RGMII case, - * so Ethernet MAC will insert delays for both transmit - * and receive path here. - */ - if (mac_delay->fine_tune) - fine_val = ETH_FINE_DLY_GTXC | ETH_FINE_DLY_RXC; + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_ID: + fine_val = ETH_FINE_DLY_GTXC | ETH_FINE_DLY_RXC; delay_val |= FIELD_PREP(ETH_DLY_GTXC_ENABLE, !!mac_delay->tx_delay); delay_val |= FIELD_PREP(ETH_DLY_GTXC_STAGES, mac_delay->tx_delay); @@ -183,36 +191,6 @@ static int mt2712_set_delay(struct mediatek_dwmac_plat_data *plat) delay_val |= FIELD_PREP(ETH_DLY_RXC_STAGES, mac_delay->rx_delay); delay_val |= FIELD_PREP(ETH_DLY_RXC_INV, mac_delay->rx_inv); break; - case PHY_INTERFACE_MODE_RGMII_TXID: - /* the PHY should insert an internal delay for the transmit - * path in PHY_INTERFACE_MODE_RGMII_TXID case, - * so Ethernet MAC will insert the delay for receive path here. - */ - if (mac_delay->fine_tune) - fine_val = ETH_FINE_DLY_RXC; - - delay_val |= FIELD_PREP(ETH_DLY_RXC_ENABLE, !!mac_delay->rx_delay); - delay_val |= FIELD_PREP(ETH_DLY_RXC_STAGES, mac_delay->rx_delay); - delay_val |= FIELD_PREP(ETH_DLY_RXC_INV, mac_delay->rx_inv); - break; - case PHY_INTERFACE_MODE_RGMII_RXID: - /* the PHY should insert an internal delay for the receive - * path in PHY_INTERFACE_MODE_RGMII_RXID case, - * so Ethernet MAC will insert the delay for transmit path here. - */ - if (mac_delay->fine_tune) - fine_val = ETH_FINE_DLY_GTXC; - - delay_val |= FIELD_PREP(ETH_DLY_GTXC_ENABLE, !!mac_delay->tx_delay); - delay_val |= FIELD_PREP(ETH_DLY_GTXC_STAGES, mac_delay->tx_delay); - delay_val |= FIELD_PREP(ETH_DLY_GTXC_INV, mac_delay->tx_inv); - break; - case PHY_INTERFACE_MODE_RGMII_ID: - /* the PHY should insert internal delays for both transmit - * and receive path in PHY_INTERFACE_MODE_RGMII_RXID case, - * so Ethernet MAC will NOT insert any delay here. - */ - break; default: dev_err(plat->dev, "phy interface not supported\n"); return -EINVAL; @@ -270,7 +248,6 @@ static int mediatek_dwmac_config_dt(struct mediatek_dwmac_plat_data *plat) mac_delay->tx_inv = of_property_read_bool(plat->np, "mediatek,txc-inverse"); mac_delay->rx_inv = of_property_read_bool(plat->np, "mediatek,rxc-inverse"); - mac_delay->fine_tune = of_property_read_bool(plat->np, "mediatek,fine-tune"); plat->rmii_rxc = of_property_read_bool(plat->np, "mediatek,rmii-rxc"); return 0; |