net: tsec: Access eTSEC registers using virtual address

The current code accesses eTSEC registers using physical
address directly, it's not correct, though no problem on
current platforms. It won't work on platforms, which does
not support 1:1 virtual-physical address map.
Signed-off-by: NHou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: NPriyanka Jain <priyanka.jain@nxp.com>

drivers/net/tsec.c

@@ -800,7 +800,7 @@ int tsec_probe(struct udevice *dev)
 	int ret;
 
 	pdata->iobase = (phys_addr_t)dev_read_addr(dev);
-	priv->regs = (struct tsec *)pdata->iobase;
+	priv->regs = dev_remap_addr(dev);
 
 	if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
 				       &phandle_args)) {
@@ -819,8 +819,13 @@ int tsec_probe(struct udevice *dev)
 	}
 
 	reg = ofnode_get_addr_index(parent, 0);
-	priv->phyregs_sgmii = (struct tsec_mii_mng *)
-			(reg + TSEC_MDIO_REGS_OFFSET);
+	if (reg == FDT_ADDR_T_NONE) {
+		printf("No 'reg' property of MII for external PHY\n");
+		return -ENOENT;
+	}
+
+	priv->phyregs_sgmii = map_physmem(reg + TSEC_MDIO_REGS_OFFSET, 0,
+					  MAP_NOCACHE);
 
 	ret = dev_read_phandle_with_args(dev, "tbi-handle", NULL, 0, 0,
 					 &phandle_args);