1 files changed, 39 insertions, 4 deletions

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 6152f6dbf1bc..ad01db156972 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1182,6 +1182,34 @@ fec_restart(struct net_device *ndev)
 
 }
 
+static int fec_enet_ipc_handle_init(struct fec_enet_private *fep)
+{
+	if (!(of_machine_is_compatible("fsl,imx8qm") ||
+	      of_machine_is_compatible("fsl,imx8qxp") ||
+	      of_machine_is_compatible("fsl,imx8dxl")))
+		return 0;
+
+	return imx_scu_get_handle(&fep->ipc_handle);
+}
+
+static void fec_enet_ipg_stop_set(struct fec_enet_private *fep, bool enabled)
+{
+	struct device_node *np = fep->pdev->dev.of_node;
+	u32 rsrc_id, val;
+	int idx;
+
+	if (!np || !fep->ipc_handle)
+		return;
+
+	idx = of_alias_get_id(np, "ethernet");
+	if (idx < 0)
+		idx = 0;
+	rsrc_id = idx ? IMX_SC_R_ENET_1 : IMX_SC_R_ENET_0;
+
+	val = enabled ? 1 : 0;
+	imx_sc_misc_set_control(fep->ipc_handle, rsrc_id, IMX_SC_C_IPG_STOP, val);
+}
+
 static void fec_enet_stop_mode(struct fec_enet_private *fep, bool enabled)
 {
 	struct fec_platform_data *pdata = fep->pdev->dev.platform_data;
@@ -1197,6 +1225,8 @@ static void fec_enet_stop_mode(struct fec_enet_private *fep, bool enabled)
 					   BIT(stop_gpr->bit), 0);
 	} else if (pdata && pdata->sleep_mode_enable) {
 		pdata->sleep_mode_enable(enabled);
+	} else {
+		fec_enet_ipg_stop_set(fep, enabled);
 	}
 }
 
@@ -2140,13 +2170,13 @@ static int fec_enet_mii_probe(struct net_device *ndev)
 				continue;
 			if (dev_id--)
 				continue;
-			strlcpy(mdio_bus_id, fep->mii_bus->id, MII_BUS_ID_SIZE);
+			strscpy(mdio_bus_id, fep->mii_bus->id, MII_BUS_ID_SIZE);
 			break;
 		}
 
 		if (phy_id >= PHY_MAX_ADDR) {
 			netdev_info(ndev, "no PHY, assuming direct connection to switch\n");
-			strlcpy(mdio_bus_id, "fixed-0", MII_BUS_ID_SIZE);
+			strscpy(mdio_bus_id, "fixed-0", MII_BUS_ID_SIZE);
 			phy_id = 0;
 		}
 
@@ -2330,9 +2360,9 @@ static void fec_enet_get_drvinfo(struct net_device *ndev,
 {
 	struct fec_enet_private *fep = netdev_priv(ndev);
 
-	strlcpy(info->driver, fep->pdev->dev.driver->name,
+	strscpy(info->driver, fep->pdev->dev.driver->name,
 		sizeof(info->driver));
-	strlcpy(info->bus_info, dev_name(&ndev->dev), sizeof(info->bus_info));
+	strscpy(info->bus_info, dev_name(&ndev->dev), sizeof(info->bus_info));
 }
 
 static int fec_enet_get_regs_len(struct net_device *ndev)
@@ -3859,6 +3889,10 @@ fec_probe(struct platform_device *pdev)
 	    !of_property_read_bool(np, "fsl,err006687-workaround-present"))
 		fep->quirks |= FEC_QUIRK_ERR006687;
 
+	ret = fec_enet_ipc_handle_init(fep);
+	if (ret)
+		goto failed_ipc_init;
+
 	if (of_get_property(np, "fsl,magic-packet", NULL))
 		fep->wol_flag |= FEC_WOL_HAS_MAGIC_PACKET;
 
@@ -4056,6 +4090,7 @@ failed_rgmii_delay:
 		of_phy_deregister_fixed_link(np);
 	of_node_put(phy_node);
 failed_stop_mode:
+failed_ipc_init:
 failed_phy:
 	dev_id--;
 failed_ioremap: