Merge c93506932fc4870b824f8412a34775d37900b04c on remote branch

Change-Id: I17a95af88c915280d5342e5a99a392498fda534f

4 files changed, 80 insertions, 48 deletions

diff --git a/drivers/emac-dwc-eqos/DWC_ETH_QOS_dev.c b/drivers/emac-dwc-eqos/DWC_ETH_QOS_dev.c
index 7ce0a31..b262b23 100644
--- a/drivers/emac-dwc-eqos/DWC_ETH_QOS_dev.c
+++ b/drivers/emac-dwc-eqos/DWC_ETH_QOS_dev.c
@@ -3126,7 +3126,7 @@ static INT set_promiscuous_mode(void)
 
 static INT write_phy_regs(INT phy_id, INT phy_reg, INT phy_reg_data)
 {
-	ULONG RETRYCOUNT = 1000;
+	ULONG RETRYCOUNT = 5000;
 	ULONG vy_count;
 	volatile ULONG VARMAC_GMIIAR;
 
@@ -3139,7 +3139,7 @@ static INT write_phy_regs(INT phy_id, INT phy_reg, INT phy_reg_data)
 			return -Y_FAILURE;
 
 		vy_count++;
-		mdelay(1);
+		udelay(200);
 
 		MAC_GMIIAR_RGRD(VARMAC_GMIIAR);
 		if (GET_VALUE(
@@ -3173,7 +3173,7 @@ static INT write_phy_regs(INT phy_id, INT phy_reg, INT phy_reg_data)
 			return -Y_FAILURE;
 
 		vy_count++;
-		mdelay(1);
+		udelay(200);
 
 		MAC_GMIIAR_RGRD(VARMAC_GMIIAR);
 		if (GET_VALUE(
@@ -3197,7 +3197,7 @@ static INT write_phy_regs(INT phy_id, INT phy_reg, INT phy_reg_data)
 
 static INT read_phy_regs(INT phy_id, INT phy_reg, INT *phy_reg_data)
 {
-	ULONG RETRYCOUNT = 1000;
+	ULONG RETRYCOUNT = 5000;
 	ULONG vy_count;
 	volatile ULONG VARMAC_GMIIAR;
 	ULONG VARMAC_GMIIDR;
@@ -3211,8 +3211,7 @@ static INT read_phy_regs(INT phy_id, INT phy_reg, INT *phy_reg_data)
 			return -Y_FAILURE;
 
 		vy_count++;
-		mdelay(1);
-
+		udelay(200);
 		MAC_GMIIAR_RGRD(VARMAC_GMIIAR);
 		if (GET_VALUE(
 				VARMAC_GMIIAR, MAC_GMIIAR_GB_LPOS,
@@ -3243,7 +3242,7 @@ static INT read_phy_regs(INT phy_id, INT phy_reg, INT *phy_reg_data)
 			return -Y_FAILURE;
 
 		vy_count++;
-		mdelay(1);
+		udelay(200);
 
 		MAC_GMIIAR_RGRD(VARMAC_GMIIAR);
 		if (GET_VALUE(
diff --git a/drivers/emac-dwc-eqos/DWC_ETH_QOS_mdio.c b/drivers/emac-dwc-eqos/DWC_ETH_QOS_mdio.c
index faac49e..defeef8 100644
--- a/drivers/emac-dwc-eqos/DWC_ETH_QOS_mdio.c
+++ b/drivers/emac-dwc-eqos/DWC_ETH_QOS_mdio.c
@@ -445,6 +445,43 @@ void dump_phy_registers(struct DWC_ETH_QOS_prv_data *pdata)
 	pr_alert("\n****************************************************\n");
 }
 
+static void DWC_ETH_QOS_request_phy_wol(struct DWC_ETH_QOS_prv_data *pdata)
+{
+	pdata->phy_wol_supported = 0;
+	pdata->phy_wol_wolopts = 0;
+
+	/* Check if phydev is valid*/
+	/* Check and enable Wake-on-LAN functionality in PHY*/
+	if (pdata->phydev) {
+		struct ethtool_wolinfo wol = {.cmd = ETHTOOL_GWOL};
+		wol.supported = 0;
+		wol.wolopts= 0;
+
+		phy_ethtool_get_wol(pdata->phydev, &wol);
+		pdata->phy_wol_supported = wol.supported;
+
+		/* Try to enable supported Wake-on-LAN features in PHY*/
+		if (wol.supported) {
+
+			device_set_wakeup_capable(&pdata->pdev->dev, 1);
+
+			wol.cmd = ETHTOOL_SWOL;
+			wol.wolopts = wol.supported;
+
+			if (!phy_ethtool_set_wol(pdata->phydev, &wol)){
+				pdata->phy_wol_wolopts = wol.wolopts;
+
+				enable_irq_wake(pdata->phy_irq);
+
+				device_set_wakeup_enable(&pdata->pdev->dev, 1);
+				EMACDBG("Enabled WoL[0x%x] in %s\n", wol.wolopts,
+						 pdata->phydev->drv->name);
+				pdata->wol_enabled = 1;
+			}
+		}
+	}
+}
+
 /*!
  * \brief API to enable or disable PHY hibernation mode
  *
@@ -1007,6 +1044,9 @@ void DWC_ETH_QOS_adjust_link(struct net_device *dev)
 		}
 #endif
 
+		if (pdata->phy_intr_en && !pdata->wol_enabled)
+			DWC_ETH_QOS_request_phy_wol(pdata);
+
 		if (pdata->ipa_enabled && netif_running(dev)) {
 			if (phydev->link == 1)
 				 DWC_ETH_QOS_ipa_offload_event_handler(pdata, EV_PHY_LINK_UP);
@@ -1030,42 +1070,6 @@ void DWC_ETH_QOS_adjust_link(struct net_device *dev)
 	DBGPR_MDIO("<--DWC_ETH_QOS_adjust_link\n");
 }
 
-static void DWC_ETH_QOS_request_phy_wol(struct DWC_ETH_QOS_prv_data *pdata)
-{
-	pdata->phy_wol_supported = 0;
-	pdata->phy_wol_wolopts = 0;
-
-	/* Check if phydev is valid*/
-	/* Check and enable Wake-on-LAN functionality in PHY*/
-	if (pdata->phydev) {
-		struct ethtool_wolinfo wol = {.cmd = ETHTOOL_GWOL};
-		wol.supported = 0;
-		wol.wolopts= 0;
-
-		phy_ethtool_get_wol(pdata->phydev, &wol);
-		pdata->phy_wol_supported = wol.supported;
-
-		/* Try to enable supported Wake-on-LAN features in PHY*/
-		if (wol.supported) {
-
-			device_set_wakeup_capable(&pdata->pdev->dev, 1);
-
-			wol.cmd = ETHTOOL_SWOL;
-			wol.wolopts = wol.supported;
-
-			if (!phy_ethtool_set_wol(pdata->phydev, &wol)){
-				pdata->phy_wol_wolopts = wol.wolopts;
-
-				enable_irq_wake(pdata->phy_irq);
-
-				device_set_wakeup_enable(&pdata->pdev->dev, 1);
-				EMACDBG("Enabled WoL[0x%x] in %s\n", wol.wolopts,
-						 pdata->phydev->drv->name);
-			}
-		}
-	}
-}
-
 bool DWC_ETH_QOS_is_phy_link_up(struct DWC_ETH_QOS_prv_data *pdata)
 {
 	/* PHY driver initializes phydev->link=1.
@@ -1194,10 +1198,8 @@ static int DWC_ETH_QOS_init_phy(struct net_device *dev)
 		phydev->irq = PHY_IGNORE_INTERRUPT;
 		phydev->interrupts =  PHY_INTERRUPT_ENABLED;
 
-		if (phydev->drv->config_intr &&
-			!phydev->drv->config_intr(phydev)){
-			DWC_ETH_QOS_request_phy_wol(pdata);
-		} else {
+		if (!(phydev->drv->config_intr &&
+			!phydev->drv->config_intr(phydev))){
 			EMACERR("Failed to configure PHY interrupts");
 			BUG();
 		}
@@ -1250,6 +1252,21 @@ int DWC_ETH_QOS_mdio_register(struct net_device *dev)
 
 	DBGPR_MDIO("-->DWC_ETH_QOS_mdio_register\n");
 
+	if (pdata->res_data->phy_addr != -1) {
+		phy_reg_read_status =
+		   DWC_ETH_QOS_mdio_read_direct(pdata, pdata->res_data->phy_addr, MII_BMSR,
+										&mii_status);
+		if (phy_reg_read_status == 0) {
+			if (mii_status != 0x0000 && mii_status != 0xffff) {
+				phy_detected = 1;
+				phyaddr = pdata->res_data->phy_addr;
+				EMACINFO("skip_phy_detection (phyaddr)%d\n", phyaddr);
+				goto skip_phy_detection;
+			} else
+				EMACERR("Invlaid phy address specified in device tree\n");
+		}
+	}
+
 	/* find the phy ID or phy address which is connected to our MAC */
 	for (phyaddr = 0; phyaddr < 32; phyaddr++) {
 
@@ -1276,6 +1293,8 @@ int DWC_ETH_QOS_mdio_register(struct net_device *dev)
 		return -ENOLINK;
 	}
 
+	skip_phy_detection:
+
 	pdata->phyaddr = phyaddr;
 	pdata->bus_id = 0x1;
 	pdata->phy_intr_en = false;
@@ -1307,7 +1326,7 @@ int DWC_ETH_QOS_mdio_register(struct net_device *dev)
 	snprintf(new_bus->id, MII_BUS_ID_SIZE, "%s-%x", new_bus->name,
 		 pdata->bus_id);
 	new_bus->priv = dev;
-	new_bus->phy_mask = 0;
+	new_bus->phy_mask = ~(1 << phyaddr);
 	new_bus->parent = &pdata->pdev->dev;
 	ret = mdiobus_register(new_bus);
 	if (ret != 0) {
diff --git a/drivers/emac-dwc-eqos/DWC_ETH_QOS_platform.c b/drivers/emac-dwc-eqos/DWC_ETH_QOS_platform.c
index 50d1e55..62daeb6 100644
--- a/drivers/emac-dwc-eqos/DWC_ETH_QOS_platform.c
+++ b/drivers/emac-dwc-eqos/DWC_ETH_QOS_platform.c
@@ -920,6 +920,16 @@ static int DWC_ETH_QOS_get_dts_config(struct platform_device *pdev)
 		dwc_eth_qos_res_data.is_pinctrl_names = true;
 		EMACDBG("qcom,pinctrl-names present\n");
 	}
+	dwc_eth_qos_res_data.phy_addr = -1;
+	if (of_property_read_bool(pdev->dev.of_node, "emac-phy-addr")) {
+		ret = of_property_read_u32(pdev->dev.of_node, "emac-phy-addr",
+			&dwc_eth_qos_res_data.phy_addr);
+		if (ret) {
+			EMACINFO("Pphy_addr not specified, using dynamic phy detection\n");
+			dwc_eth_qos_res_data.phy_addr = -1;
+		}
+		EMACINFO("phy_addr = %d\n", dwc_eth_qos_res_data.phy_addr);
+	}
 
 	return ret;
 
@@ -1491,6 +1501,8 @@ static int DWC_ETH_QOS_init_gpios(struct device *dev)
 
 		gpio_set_value(dwc_eth_qos_res_data.gpio_phy_reset, PHY_RESET_GPIO_HIGH);
 		EMACDBG("PHY is out of reset successfully\n");
+		/* Add delay of 50ms so that phy should get sufficient time*/
+		mdelay(50);
 	}
 
 	return ret;
diff --git a/drivers/emac-dwc-eqos/DWC_ETH_QOS_yheader.h b/drivers/emac-dwc-eqos/DWC_ETH_QOS_yheader.h
index ee29121..b0a1210 100644
--- a/drivers/emac-dwc-eqos/DWC_ETH_QOS_yheader.h
+++ b/drivers/emac-dwc-eqos/DWC_ETH_QOS_yheader.h
@@ -1584,6 +1584,7 @@ struct DWC_ETH_QOS_res_data {
 	unsigned int emac_hw_version_type;
 	bool early_eth_en;
 	bool pps_lpass_conn_en;
+	int phy_addr;
 };
 
 struct DWC_ETH_QOS_prv_ipa_data {
@@ -1878,6 +1879,7 @@ struct DWC_ETH_QOS_prv_data {
 	struct class* avb_class_b_class;
 	struct delayed_work ipv6_addr_assign_wq;
 	bool print_kpi;
+	bool wol_enabled;
 };
 
 struct ip_params {