1 files changed, 106 insertions, 13 deletions

diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 6c92072b4c28..b38e4f2de674 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -503,7 +503,7 @@ static void mtk_gmac0_rgmii_adjust(struct mtk_eth *eth,
 static void mtk_setup_bridge_switch(struct mtk_eth *eth)
 {
 	/* Force Port1 XGMAC Link Up */
-	mtk_m32(eth, 0, MTK_XGMAC_FORCE_LINK(MTK_GMAC1_ID),
+	mtk_m32(eth, 0, MTK_XGMAC_FORCE_MODE(MTK_GMAC1_ID),
 		MTK_XGMAC_STS(MTK_GMAC1_ID));
 
 	/* Adjust GSW bridge IPG to 11 */
@@ -532,6 +532,26 @@ static struct phylink_pcs *mtk_mac_select_pcs(struct phylink_config *config,
 	return NULL;
 }
 
+static int mtk_mac_prepare(struct phylink_config *config, unsigned int mode,
+			   phy_interface_t iface)
+{
+	struct mtk_mac *mac = container_of(config, struct mtk_mac,
+					   phylink_config);
+	struct mtk_eth *eth = mac->hw;
+
+	if (mtk_interface_mode_is_xgmii(eth, iface) &&
+	    mac->id != MTK_GMAC1_ID) {
+		mtk_m32(mac->hw, XMAC_MCR_TRX_DISABLE,
+			XMAC_MCR_TRX_DISABLE, MTK_XMAC_MCR(mac->id));
+
+		mtk_m32(mac->hw, MTK_XGMAC_FORCE_MODE(mac->id) |
+				 MTK_XGMAC_FORCE_LINK(mac->id),
+			MTK_XGMAC_FORCE_MODE(mac->id), MTK_XGMAC_STS(mac->id));
+	}
+
+	return 0;
+}
+
 static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
 			   const struct phylink_link_state *state)
 {
@@ -573,6 +593,12 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
 			}
 			break;
 		case PHY_INTERFACE_MODE_INTERNAL:
+			if (mac->id == MTK_GMAC2_ID &&
+			    MTK_HAS_CAPS(eth->soc->caps, MTK_2P5GPHY)) {
+				err = mtk_gmac_2p5gphy_path_setup(eth, mac->id);
+				if (err)
+					goto init_err;
+			}
 			break;
 		default:
 			goto err_phy;
@@ -644,12 +670,12 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
 	}
 
 	/* Setup gmac */
-	if (mtk_is_netsys_v3_or_greater(eth) &&
-	    mac->interface == PHY_INTERFACE_MODE_INTERNAL) {
+	if (mtk_interface_mode_is_xgmii(eth, state->interface)) {
 		mtk_w32(mac->hw, MTK_GDMA_XGDM_SEL, MTK_GDMA_EG_CTRL(mac->id));
 		mtk_w32(mac->hw, MAC_MCR_FORCE_LINK_DOWN, MTK_MAC_MCR(mac->id));
 
-		mtk_setup_bridge_switch(eth);
+		if (mac->id == MTK_GMAC1_ID)
+			mtk_setup_bridge_switch(eth);
 	}
 
 	return;
@@ -696,10 +722,19 @@ static void mtk_mac_link_down(struct phylink_config *config, unsigned int mode,
 {
 	struct mtk_mac *mac = container_of(config, struct mtk_mac,
 					   phylink_config);
-	u32 mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id));
 
-	mcr &= ~(MAC_MCR_TX_EN | MAC_MCR_RX_EN | MAC_MCR_FORCE_LINK);
-	mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id));
+	if (!mtk_interface_mode_is_xgmii(mac->hw, interface)) {
+		/* GMAC modes */
+		mtk_m32(mac->hw,
+			MAC_MCR_TX_EN | MAC_MCR_RX_EN | MAC_MCR_FORCE_LINK, 0,
+			MTK_MAC_MCR(mac->id));
+	} else if (mac->id != MTK_GMAC1_ID) {
+		/* XGMAC except for built-in switch */
+		mtk_m32(mac->hw, XMAC_MCR_TRX_DISABLE, XMAC_MCR_TRX_DISABLE,
+			MTK_XMAC_MCR(mac->id));
+		mtk_m32(mac->hw, MTK_XGMAC_FORCE_LINK(mac->id), 0,
+			MTK_XGMAC_STS(mac->id));
+	}
 }
 
 static void mtk_set_queue_speed(struct mtk_eth *eth, unsigned int idx,
@@ -771,13 +806,12 @@ static void mtk_set_queue_speed(struct mtk_eth *eth, unsigned int idx,
 	mtk_w32(eth, val, soc->reg_map->qdma.qtx_sch + ofs);
 }
 
-static void mtk_mac_link_up(struct phylink_config *config,
-			    struct phy_device *phy,
-			    unsigned int mode, phy_interface_t interface,
-			    int speed, int duplex, bool tx_pause, bool rx_pause)
+static void mtk_gdm_mac_link_up(struct mtk_mac *mac,
+				struct phy_device *phy,
+				unsigned int mode, phy_interface_t interface,
+				int speed, int duplex, bool tx_pause,
+				bool rx_pause)
 {
-	struct mtk_mac *mac = container_of(config, struct mtk_mac,
-					   phylink_config);
 	u32 mcr;
 
 	mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id));
@@ -811,6 +845,56 @@ static void mtk_mac_link_up(struct phylink_config *config,
 	mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id));
 }
 
+static void mtk_xgdm_mac_link_up(struct mtk_mac *mac,
+				 struct phy_device *phy,
+				 unsigned int mode, phy_interface_t interface,
+				 int speed, int duplex, bool tx_pause,
+				 bool rx_pause)
+{
+	u32 mcr;
+
+	if (mac->id == MTK_GMAC1_ID)
+		return;
+
+	/* Eliminate the interference(before link-up) caused by PHY noise */
+	mtk_m32(mac->hw, XMAC_LOGIC_RST, 0, MTK_XMAC_LOGIC_RST(mac->id));
+	mdelay(20);
+	mtk_m32(mac->hw, XMAC_GLB_CNTCLR, XMAC_GLB_CNTCLR,
+		MTK_XMAC_CNT_CTRL(mac->id));
+
+	mtk_m32(mac->hw, MTK_XGMAC_FORCE_LINK(mac->id),
+		MTK_XGMAC_FORCE_LINK(mac->id), MTK_XGMAC_STS(mac->id));
+
+	mcr = mtk_r32(mac->hw, MTK_XMAC_MCR(mac->id));
+	mcr &= ~(XMAC_MCR_FORCE_TX_FC | XMAC_MCR_FORCE_RX_FC |
+		 XMAC_MCR_TRX_DISABLE);
+	/* Configure pause modes -
+	 * phylink will avoid these for half duplex
+	 */
+	if (tx_pause)
+		mcr |= XMAC_MCR_FORCE_TX_FC;
+	if (rx_pause)
+		mcr |= XMAC_MCR_FORCE_RX_FC;
+
+	mtk_w32(mac->hw, mcr, MTK_XMAC_MCR(mac->id));
+}
+
+static void mtk_mac_link_up(struct phylink_config *config,
+			    struct phy_device *phy,
+			    unsigned int mode, phy_interface_t interface,
+			    int speed, int duplex, bool tx_pause, bool rx_pause)
+{
+	struct mtk_mac *mac = container_of(config, struct mtk_mac,
+					   phylink_config);
+
+	if (mtk_interface_mode_is_xgmii(mac->hw, interface))
+		mtk_xgdm_mac_link_up(mac, phy, mode, interface, speed, duplex,
+				     tx_pause, rx_pause);
+	else
+		mtk_gdm_mac_link_up(mac, phy, mode, interface, speed, duplex,
+				    tx_pause, rx_pause);
+}
+
 static void mtk_mac_disable_tx_lpi(struct phylink_config *config)
 {
 	struct mtk_mac *mac = container_of(config, struct mtk_mac,
@@ -828,6 +912,9 @@ static int mtk_mac_enable_tx_lpi(struct phylink_config *config, u32 timer,
 	struct mtk_eth *eth = mac->hw;
 	u32 val;
 
+	if (mtk_interface_mode_is_xgmii(eth, mac->interface))
+		return -EOPNOTSUPP;
+
 	/* Tx idle timer in ms */
 	timer = DIV_ROUND_UP(timer, 1000);
 
@@ -858,6 +945,7 @@ static int mtk_mac_enable_tx_lpi(struct phylink_config *config, u32 timer,
 }
 
 static const struct phylink_mac_ops mtk_phylink_ops = {
+	.mac_prepare = mtk_mac_prepare,
 	.mac_select_pcs = mtk_mac_select_pcs,
 	.mac_config = mtk_mac_config,
 	.mac_finish = mtk_mac_finish,
@@ -4768,6 +4856,11 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
 
 	mac->phylink = phylink;
 
+	if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_2P5GPHY) &&
+	    id == MTK_GMAC2_ID)
+		__set_bit(PHY_INTERFACE_MODE_INTERNAL,
+			  mac->phylink_config.supported_interfaces);
+
 	SET_NETDEV_DEV(eth->netdev[id], eth->dev);
 	eth->netdev[id]->watchdog_timeo = 5 * HZ;
 	eth->netdev[id]->netdev_ops = &mtk_netdev_ops;