b53: provide PHY access to swconfig

Thanks to this change swconfig can access port PHYs e.g. when setting
port link state with a generic helper.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 48622

target/linux/generic/files/drivers/net/phy/b53/b53_common.c

@@ -794,6 +794,26 @@ static int b53_port_get_link(struct switch_dev *dev, int port,
 
 }
 
+static int b53_phy_read16(struct switch_dev *dev, int addr, u8 reg, u16 *value)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	if (priv->ops->phy_read16)
+		return priv->ops->phy_read16(priv, addr, reg, value);
+
+	return b53_read16(priv, B53_PORT_MII_PAGE(addr), reg, value);
+}
+
+static int b53_phy_write16(struct switch_dev *dev, int addr, u8 reg, u16 value)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	if (priv->ops->phy_write16)
+		return priv->ops->phy_write16(priv, addr, reg, value);
+
+	return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg, value);
+}
+
 static int b53_global_reset_switch(struct switch_dev *dev)
 {
 	struct b53_device *priv = sw_to_b53(dev);
@@ -1002,6 +1022,8 @@ static const struct switch_dev_ops b53_switch_ops_25 = {
 	.apply_config = b53_global_apply_config,
 	.reset_switch = b53_global_reset_switch,
 	.get_port_link = b53_port_get_link,
+	.phy_read16 = b53_phy_read16,
+	.phy_write16 = b53_phy_write16,
 };
 
 static const struct switch_dev_ops b53_switch_ops_65 = {
@@ -1025,6 +1047,8 @@ static const struct switch_dev_ops b53_switch_ops_65 = {
 	.apply_config = b53_global_apply_config,
 	.reset_switch = b53_global_reset_switch,
 	.get_port_link = b53_port_get_link,
+	.phy_read16 = b53_phy_read16,
+	.phy_write16 = b53_phy_write16,
 };
 
 static const struct switch_dev_ops b53_switch_ops = {
@@ -1048,6 +1072,8 @@ static const struct switch_dev_ops b53_switch_ops = {
 	.apply_config = b53_global_apply_config,
 	.reset_switch = b53_global_reset_switch,
 	.get_port_link = b53_port_get_link,
+	.phy_read16 = b53_phy_read16,
+	.phy_write16 = b53_phy_write16,
 };
 
 struct b53_chip_data {

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

@@ -238,6 +238,24 @@ static int b53_mdio_write64(struct b53_device *dev, u8 page, u8 reg,
 	return b53_mdio_op(dev, page, reg, REG_MII_ADDR_WRITE);
 }
 
+static int b53_mdio_phy_read16(struct b53_device *dev, int addr, u8 reg,
+			       u16 *value)
+{
+	struct mii_bus *bus = dev->priv;
+
+	*value = mdiobus_read(bus, addr, reg);
+
+	return 0;
+}
+
+static int b53_mdio_phy_write16(struct b53_device *dev, int addr, u8 reg,
+				u16 value)
+{
+	struct mii_bus *bus = dev->priv;
+
+	return mdiobus_write(bus, addr, reg, value);
+}
+
 static struct b53_io_ops b53_mdio_ops = {
 	.read8 = b53_mdio_read8,
 	.read16 = b53_mdio_read16,
@@ -249,6 +267,8 @@ static struct b53_io_ops b53_mdio_ops = {
 	.write32 = b53_mdio_write32,
 	.write48 = b53_mdio_write48,
 	.write64 = b53_mdio_write64,
+	.phy_read16 = b53_mdio_phy_read16,
+	.phy_write16 = b53_mdio_phy_write16,
 };
 
 static int b53_phy_probe(struct phy_device *phydev)

target/linux/generic/files/drivers/net/phy/b53/b53_priv.h

@@ -36,6 +36,8 @@ struct b53_io_ops {
 	int (*write32)(struct b53_device *dev, u8 page, u8 reg, u32 value);
 	int (*write48)(struct b53_device *dev, u8 page, u8 reg, u64 value);
 	int (*write64)(struct b53_device *dev, u8 page, u8 reg, u64 value);
+	int (*phy_read16)(struct b53_device *dev, int addr, u8 reg, u16 *value);
+	int (*phy_write16)(struct b53_device *dev, int addr, u8 reg, u16 value);
 };
 
 enum {