net: hix5hd2_gmac: add generic compatible string

The "hix5hd2" is SoC name, add the generic ethernet driver name.
The "hisi-gemac-v1" is the basic version and "hisi-gemac-v2" adds
the SG/TXCSUM/TSO/UFO features.
Signed-off-by: NDongpo Li <lidongpo@hisilicon.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/hisilicon-hix5hd2-gmac.txt

 Hisilicon hix5hd2 gmac controller
 
 Required properties:
-- compatible: should be "hisilicon,hix5hd2-gmac".
+- compatible: should contain one of the following SoC strings:
+	* "hisilicon,hix5hd2-gemac"
+	* "hisilicon,hi3798cv200-gemac"
+	and one of the following version string:
+	* "hisilicon,hisi-gemac-v1"
+	* "hisilicon,hisi-gemac-v2"
 - reg: specifies base physical address(s) and size of the device registers.
   The first region is the MAC register base and size.
   The second region is external interface control register.
@@ -20,7 +25,7 @@ Required properties:
 
 Example:
 	gmac0: ethernet@f9840000 {
-		compatible = "hisilicon,hix5hd2-gmac";
+		compatible = "hisilicon,hix5hd2-gemac", "hisilicon,hisi-gemac-v1";
 		reg = <0xf9840000 0x1000>,<0xf984300c 0x4>;
 		interrupts = <0 71 4>;
 		#address-cells = <1>;

drivers/net/ethernet/hisilicon/hix5hd2_gmac.c

@@ -189,6 +189,10 @@
 #define dma_cnt(n)			((n) >> 5)
 #define dma_byte(n)			((n) << 5)
 
+#define HW_CAP_TSO			BIT(0)
+#define GEMAC_V1			0
+#define GEMAC_V2			(GEMAC_V1 | HW_CAP_TSO)
+
 struct hix5hd2_desc {
 	__le32 buff_addr;
 	__le32 cmd;
@@ -1021,7 +1025,10 @@ static int hix5hd2_dev_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id hix5hd2_of_match[] = {
-	{.compatible = "hisilicon,hix5hd2-gmac",},
+	{ .compatible = "hisilicon,hisi-gemac-v1", .data = (void *)GEMAC_V1 },
+	{ .compatible = "hisilicon,hisi-gemac-v2", .data = (void *)GEMAC_V2 },
+	{ .compatible = "hisilicon,hix5hd2-gemac", .data = (void *)GEMAC_V1 },
+	{ .compatible = "hisilicon,hi3798cv200-gemac", .data = (void *)GEMAC_V2 },
 	{},
 };
 
@@ -1029,7 +1036,7 @@ MODULE_DEVICE_TABLE(of, hix5hd2_of_match);
 
 static struct platform_driver hix5hd2_dev_driver = {
 	.driver = {
-		.name = "hix5hd2-gmac",
+		.name = "hisi-gemac",
 		.of_match_table = hix5hd2_of_match,
 	},
 	.probe = hix5hd2_dev_probe,
@@ -1038,6 +1045,6 @@ static struct platform_driver hix5hd2_dev_driver = {
 
 module_platform_driver(hix5hd2_dev_driver);
 
-MODULE_DESCRIPTION("HISILICON HIX5HD2 Ethernet driver");
+MODULE_DESCRIPTION("HISILICON Gigabit Ethernet MAC driver");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:hix5hd2-gmac");
+MODULE_ALIAS("platform:hisi-gemac");