swconfig: fix Broadcom b53 support

This commit fixes a bug in the main swconfig patch where a function
needed by the b53 driver is not exported.
Additionally it adds OF support to the b53_mdio driver for devicetree-
based probing

Signed-off-by: Tobias Schramm <tobleminer@gmail.com>

target/linux/generic/files/drivers/net/phy/b53/b53_mdio.c

@@ -370,6 +370,26 @@ static int b53_phy_read_status(struct phy_device *phydev)
 	return 0;
 }
 
+static const struct of_device_id b53_of_match_1[] = {
+	{ .compatible = "brcm,bcm5325" },
+	{ .compatible = "brcm,bcm5395" },
+	{ .compatible = "brcm,bcm5397" },
+	{ .compatible = "brcm,bcm5398" },
+	{ /* sentinel */ },
+};
+
+static const struct of_device_id b53_of_match_2[] = {
+	{ .compatible = "brcm,bcm53115" },
+	{ .compatible = "brcm,bcm53125" },
+	{ .compatible = "brcm,bcm53128" },
+	{ /* sentinel */ },
+};
+
+static const struct of_device_id b53_of_match_3[] = {
+	{ .compatible = "brcm,bcm5365" },
+	{ /* sentinel */ },
+};
+
 /* BCM5325, BCM539x */
 static struct phy_driver b53_phy_driver_id1 = {
 	.phy_id		= 0x0143bc00,
@@ -381,6 +401,10 @@ static struct phy_driver b53_phy_driver_id1 = {
 	.config_aneg	= b53_phy_config_aneg,
 	.config_init	= b53_phy_config_init,
 	.read_status	= b53_phy_read_status,
+	.mdiodrv.driver = {
+		.name = "bcm539x",
+		.of_match_table = b53_of_match_1,
+	},
 };
 
 /* BCM53125, BCM53128 */
@@ -394,6 +418,10 @@ static struct phy_driver b53_phy_driver_id2 = {
 	.config_aneg	= b53_phy_config_aneg,
 	.config_init	= b53_phy_config_init,
 	.read_status	= b53_phy_read_status,
+	.mdiodrv.driver = {
+		.name = "bcm531xx",
+		.of_match_table = b53_of_match_2,
+	},
 };
 
 /* BCM5365 */
@@ -407,6 +435,10 @@ static struct phy_driver b53_phy_driver_id3 = {
 	.config_aneg	= b53_phy_config_aneg,
 	.config_init	= b53_phy_config_init,
 	.read_status	= b53_phy_read_status,
+	.mdiodrv.driver = {
+		.name = "bcm5365",
+		.of_match_table = b53_of_match_3,
+	},
 };
 
 int __init b53_phy_driver_register(void)

target/linux/generic/files/drivers/net/phy/swconfig.c

@@ -1256,6 +1256,7 @@ switch_generic_set_link(struct switch_dev *dev, int port,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(switch_generic_set_link);
 
 static int __init
 swconfig_init(void)