net: phy: broadcom: Add BCM Cygnus PHY

Add Ethernet PHY for BCM Cygnus SoC

Signed-off-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Steve Rae <srae@broadcom.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/phy/broadcom.c

@@ -137,6 +137,24 @@ static int bcm5482_config(struct phy_device *phydev)
 	return 0;
 }
 
+static int bcm_cygnus_startup(struct phy_device *phydev)
+{
+	/* Read the Status (2x to make sure link is right) */
+	genphy_update_link(phydev);
+	genphy_parse_link(phydev);
+
+	return 0;
+}
+
+static int bcm_cygnus_config(struct phy_device *phydev)
+{
+	genphy_config_aneg(phydev);
+
+	phy_reset(phydev);
+
+	return 0;
+}
+
 /*
  * Find out if PHY is in copper or serdes mode by looking at Expansion Reg
  * 0x42 - "Operating Mode Status Register"
@@ -264,11 +282,22 @@ static struct phy_driver BCM5482S_driver = {
 	.shutdown = &genphy_shutdown,
 };
 
+static struct phy_driver BCM_CYGNUS_driver = {
+	.name = "Broadcom CYGNUS GPHY",
+	.uid = 0xae025200,
+	.mask = 0xfffff0,
+	.features = PHY_GBIT_FEATURES,
+	.config = &bcm_cygnus_config,
+	.startup = &bcm_cygnus_startup,
+	.shutdown = &genphy_shutdown,
+};
+
 int phy_broadcom_init(void)
 {
 	phy_register(&BCM5482S_driver);
 	phy_register(&BCM5464S_driver);
 	phy_register(&BCM5461S_driver);
+	phy_register(&BCM_CYGNUS_driver);
 
 	return 0;
 }