net: tsec: Add the compatible string "gianfar" support

Add compatible string "gianfar" support and update the
device-tree-bindings doc.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

doc/device-tree-bindings/net/fsl-tsec-phy.txt

@@ -2,7 +2,7 @@
 
 Properties:
 
-  - compatible : Should be "fsl,etsec2"
+  - compatible : Should be "fsl,etsec2" or "gianfar"
   - reg : Offset and length of the register set for the device
   - phy-handle : See ethernet.txt file in the same directory.
   - phy-connection-type : See ethernet.txt file in the same directory. This

drivers/net/tsec.c

@@ -803,11 +803,14 @@ int tsec_probe(struct udevice *dev)
 	struct tsec_private *priv = dev_get_priv(dev);
 	struct ofnode_phandle_args phandle_args;
 	u32 tbiaddr = CONFIG_SYS_TBIPA_VALUE;
+	struct tsec_data *data;
 	const char *phy_mode;
 	fdt_addr_t reg;
 	ofnode parent;
 	int ret;
 
+	data = (struct tsec_data *)dev_get_driver_data(dev);
+
 	pdata->iobase = (phys_addr_t)dev_read_addr(dev);
 	priv->regs = dev_remap_addr(dev);
 
@@ -828,7 +831,7 @@ int tsec_probe(struct udevice *dev)
 			return -ENOENT;
 		}
 
-		priv->phyregs_sgmii = map_physmem(reg + TSEC_MDIO_REGS_OFFSET,
+		priv->phyregs_sgmii = map_physmem(reg + data->mdio_regs_off,
 						  0, MAP_NOCACHE);
 	}
 
@@ -880,8 +883,17 @@ static const struct eth_ops tsec_ops = {
 	.mcast = tsec_mcast_addr,
 };
 
+static struct tsec_data etsec2_data = {
+	.mdio_regs_off = TSEC_MDIO_REGS_OFFSET,
+};
+
+static struct tsec_data gianfar_data = {
+	.mdio_regs_off = 0x0,
+};
+
 static const struct udevice_id tsec_ids[] = {
-	{ .compatible = "fsl,etsec2" },
+	{ .compatible = "fsl,etsec2", .data = (ulong)&etsec2_data },
+	{ .compatible = "gianfar", .data = (ulong)&gianfar_data },
 	{ }
 };
 

include/tsec.h

@@ -394,6 +394,10 @@ struct tsec {
 
 #define TX_BUF_CNT	2
 
+struct tsec_data {
+	u32 mdio_regs_off;
+};
+
 struct tsec_private {
 	struct txbd8 __iomem txbd[TX_BUF_CNT];
 	struct rxbd8 __iomem rxbd[PKTBUFSRX];