net: phy: Add Broadcom BCM53xx switch driver

Add a minimalistic Broadcom BCM53xx (roboswitch) switch driver similar
to the Marvell MV88E617x. This takes care of configuring the minimum
amount out of the switch hardware such that each user visible port
(configurable) and the CPU port can forward packets between each other
while preserving isolation with other ports.

This is useful for e.g: the Lamobo R1 board featuring a Broadcom
BCM53125 switch.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>

5 files changed, 651 insertions, 0 deletions

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index e32f1eb1c0..95b7534323 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -12,6 +12,23 @@ menuconfig PHYLIB
 
 if PHYLIB
 
+config B53_SWITCH
+	bool "Broadcom BCM53xx (RoboSwitch) Ethernet switch PHY support."
+	help
+	  Enable support for Broadcom BCM53xx (RoboSwitch) Ethernet switches.
+	  This currently supports BCM53125 and similar models.
+
+if B53_SWITCH
+
+config B53_CPU_PORT
+	int "CPU port"
+	default 8
+
+config B53_PHY_PORTS
+	hex "Bitmask of PHY ports"
+
+endif # B53_SWITCH
+
 config MV88E61XX_SWITCH
 	bool "Marvel MV88E61xx Ethernet switch PHY support."
 
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 1e264b2f2b..f1980371c3 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -6,6 +6,7 @@
 #
 
 obj-$(CONFIG_BITBANGMII) += miiphybb.o
+obj-$(CONFIG_B53_SWITCH) += b53.o
 obj-$(CONFIG_MV88E61XX_SWITCH) += mv88e61xx.o
 obj-$(CONFIG_MV88E6352_SWITCH) += mv88e6352.o
 
diff --git a/drivers/net/phy/b53.c b/drivers/net/phy/b53.c
new file mode 100644
index 0000000000..185a2cddab
--- /dev/null
+++ b/drivers/net/phy/b53.c
@@ -0,0 +1,629 @@
+/*
+ * Copyright (C) 2017
+ * Broadcom
+ * Florian Fainelli <f.fainelli@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * PHY driver for Broadcom BCM53xx (roboswitch) Ethernet switches.
+ *
+ * This driver configures the b53 for basic use as a PHY. The switch supports
+ * vendor tags and VLAN configuration that can affect the switching decisions.
+ * This driver uses a simple configuration in which all ports are only allowed
+ * to send frames to the CPU port and receive frames from the CPU port this
+ * providing port isolation (no cross talk).
+ *
+ * The configuration determines which PHY ports to activate using the
+ * CONFIG_B53_PHY_PORTS bitmask. Set bit N will active port N and so on.
+ *
+ * This driver was written primarily for the Lamobo R1 platform using a BCM53152
+ * switch but the BCM53xx being largely register compatible, extending it to
+ * cover other switches would be trivial.
+ */
+
+#include <common.h>
+
+#include <errno.h>
+#include <malloc.h>
+#include <miiphy.h>
+#include <netdev.h>
+
+/* Pseudo-PHY address (non configurable) to access internal registers */
+#define BRCM_PSEUDO_PHY_ADDR		30
+
+/* Maximum number of ports possible */
+#define B53_N_PORTS			9
+
+#define B53_CTRL_PAGE			0x00 /* Control */
+#define B53_MGMT_PAGE			0x02 /* Management Mode */
+/* Port VLAN Page */
+#define B53_PVLAN_PAGE			0x31
+
+/* Control Page registers */
+#define B53_PORT_CTRL(i)		(0x00 + (i))
+#define   PORT_CTRL_RX_DISABLE		BIT(0)
+#define   PORT_CTRL_TX_DISABLE		BIT(1)
+#define   PORT_CTRL_RX_BCST_EN		BIT(2) /* Broadcast RX (P8 only) */
+#define   PORT_CTRL_RX_MCST_EN		BIT(3) /* Multicast RX (P8 only) */
+#define   PORT_CTRL_RX_UCST_EN		BIT(4) /* Unicast RX (P8 only) */
+
+/* Switch Mode Control Register (8 bit) */
+#define B53_SWITCH_MODE			0x0b
+#define   SM_SW_FWD_MODE		BIT(0)	/* 1 = Managed Mode */
+#define   SM_SW_FWD_EN			BIT(1)	/* Forwarding Enable */
+
+/* IMP Port state override register (8 bit) */
+#define B53_PORT_OVERRIDE_CTRL		0x0e
+#define   PORT_OVERRIDE_LINK		BIT(0)
+#define   PORT_OVERRIDE_FULL_DUPLEX	BIT(1) /* 0 = Half Duplex */
+#define   PORT_OVERRIDE_SPEED_S		2
+#define   PORT_OVERRIDE_SPEED_10M	(0 << PORT_OVERRIDE_SPEED_S)
+#define   PORT_OVERRIDE_SPEED_100M	(1 << PORT_OVERRIDE_SPEED_S)
+#define   PORT_OVERRIDE_SPEED_1000M	(2 << PORT_OVERRIDE_SPEED_S)
+/* BCM5325 only */
+#define   PORT_OVERRIDE_RV_MII_25	BIT(4)
+#define   PORT_OVERRIDE_RX_FLOW		BIT(4)
+#define   PORT_OVERRIDE_TX_FLOW		BIT(5)
+/* BCM5301X only, requires setting 1000M */
+#define   PORT_OVERRIDE_SPEED_2000M	BIT(6)
+#define   PORT_OVERRIDE_EN		BIT(7) /* Use the register contents */
+
+#define B53_RGMII_CTRL_IMP		0x60
+#define   RGMII_CTRL_ENABLE_GMII	BIT(7)
+#define   RGMII_CTRL_TIMING_SEL		BIT(2)
+#define   RGMII_CTRL_DLL_RXC		BIT(1)
+#define   RGMII_CTRL_DLL_TXC		BIT(0)
+
+/* Switch control (8 bit) */
+#define B53_SWITCH_CTRL			0x22
+#define  B53_MII_DUMB_FWDG_EN		BIT(6)
+
+/* Software reset register (8 bit) */
+#define B53_SOFTRESET			0x79
+#define   SW_RST			BIT(7)
+#define   EN_CH_RST			BIT(6)
+#define   EN_SW_RST			BIT(4)
+
+/* Fast Aging Control register (8 bit) */
+#define B53_FAST_AGE_CTRL		0x88
+#define   FAST_AGE_STATIC		BIT(0)
+#define   FAST_AGE_DYNAMIC		BIT(1)
+#define   FAST_AGE_PORT			BIT(2)
+#define   FAST_AGE_VLAN			BIT(3)
+#define   FAST_AGE_STP			BIT(4)
+#define   FAST_AGE_MC			BIT(5)
+#define   FAST_AGE_DONE			BIT(7)
+
+/* Port VLAN mask (16 bit) IMP port is always 8, also on 5325 & co */
+#define B53_PVLAN_PORT_MASK(i)		((i) * 2)
+
+/* MII registers */
+#define REG_MII_PAGE    0x10    /* MII Page register */
+#define REG_MII_ADDR    0x11    /* MII Address register */
+#define REG_MII_DATA0   0x18    /* MII Data register 0 */
+#define REG_MII_DATA1   0x19    /* MII Data register 1 */
+#define REG_MII_DATA2   0x1a    /* MII Data register 2 */
+#define REG_MII_DATA3   0x1b    /* MII Data register 3 */
+
+#define REG_MII_PAGE_ENABLE     BIT(0)
+#define REG_MII_ADDR_WRITE      BIT(0)
+#define REG_MII_ADDR_READ       BIT(1)
+
+struct b53_device {
+	struct mii_dev	*bus;
+	unsigned int cpu_port;
+};
+
+static int b53_mdio_op(struct mii_dev *bus, u8 page, u8 reg, u16 op)
+{
+	int ret;
+	int i;
+	u16 v;
+
+	/* set page number */
+	v = (page << 8) | REG_MII_PAGE_ENABLE;
+	ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_PAGE, v);
+	if (ret)
+		return ret;
+
+	/* set register address */
+	v = (reg << 8) | op;
+	ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_ADDR, v);
+	if (ret)
+		return ret;
+
+	/* check if operation completed */
+	for (i = 0; i < 5; ++i) {
+		v = bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			      REG_MII_ADDR);
+		if (!(v & (REG_MII_ADDR_WRITE | REG_MII_ADDR_READ)))
+			break;
+
+		udelay(100);
+	}
+
+	if (i == 5)
+		return -EIO;
+
+	return 0;
+}
+
+static int b53_mdio_read8(struct mii_dev *bus, u8 page, u8 reg, u8 *val)
+{
+	int ret;
+
+	ret = b53_mdio_op(bus, page, reg, REG_MII_ADDR_READ);
+	if (ret)
+		return ret;
+
+	*val = bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_DATA0) & 0xff;
+
+	return 0;
+}
+
+static int b53_mdio_read16(struct mii_dev *bus, u8 page, u8 reg, u16 *val)
+{
+	int ret;
+
+	ret = b53_mdio_op(bus, page, reg, REG_MII_ADDR_READ);
+	if (ret)
+		return ret;
+
+	*val = bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_DATA0);
+
+	return 0;
+}
+
+static int b53_mdio_read32(struct mii_dev *bus, u8 page, u8 reg, u32 *val)
+{
+	int ret;
+
+	ret = b53_mdio_op(bus, page, reg, REG_MII_ADDR_READ);
+	if (ret)
+		return ret;
+
+	*val = bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_DATA0);
+	*val |= bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			  REG_MII_DATA1) << 16;
+
+	return 0;
+}
+
+static int b53_mdio_read48(struct mii_dev *bus, u8 page, u8 reg, u64 *val)
+{
+	u64 temp = 0;
+	int i;
+	int ret;
+
+	ret = b53_mdio_op(bus, page, reg, REG_MII_ADDR_READ);
+	if (ret)
+		return ret;
+
+	for (i = 2; i >= 0; i--) {
+		temp <<= 16;
+		temp |= bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+				  REG_MII_DATA0 + i);
+	}
+
+	*val = temp;
+
+	return 0;
+}
+
+static int b53_mdio_read64(struct mii_dev *bus, u8 page, u8 reg, u64 *val)
+{
+	u64 temp = 0;
+	int i;
+	int ret;
+
+	ret = b53_mdio_op(bus, page, reg, REG_MII_ADDR_READ);
+	if (ret)
+		return ret;
+
+	for (i = 3; i >= 0; i--) {
+		temp <<= 16;
+		temp |= bus->read(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+				  REG_MII_DATA0 + i);
+	}
+
+	*val = temp;
+
+	return 0;
+}
+
+static int b53_mdio_write8(struct mii_dev *bus, u8 page, u8 reg, u8 value)
+{
+	int ret;
+
+	ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_DATA0, value);
+	if (ret)
+		return ret;
+
+	return b53_mdio_op(bus, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write16(struct mii_dev *bus, u8 page, u8 reg,
+			    u16 value)
+{
+	int ret;
+
+	ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR, MDIO_DEVAD_NONE,
+			 REG_MII_DATA0, value);
+	if (ret)
+		return ret;
+
+	return b53_mdio_op(bus, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write32(struct mii_dev *bus, u8 page, u8 reg,
+			    u32 value)
+{
+	unsigned int i;
+	u32 temp = value;
+
+	for (i = 0; i < 2; i++) {
+		int ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR,
+				     MDIO_DEVAD_NONE,
+				     REG_MII_DATA0 + i, temp & 0xffff);
+		if (ret)
+			return ret;
+		temp >>= 16;
+	}
+
+	return b53_mdio_op(bus, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write48(struct mii_dev *bus, u8 page, u8 reg,
+			    u64 value)
+{
+	unsigned int i;
+	u64 temp = value;
+
+	for (i = 0; i < 3; i++) {
+		int ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR,
+				     MDIO_DEVAD_NONE,
+				     REG_MII_DATA0 + i, temp & 0xffff);
+		if (ret)
+			return ret;
+		temp >>= 16;
+	}
+
+	return b53_mdio_op(bus, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static int b53_mdio_write64(struct mii_dev *bus, u8 page, u8 reg,
+			    u64 value)
+{
+	unsigned int i;
+	u64 temp = value;
+
+	for (i = 0; i < 4; i++) {
+		int ret = bus->write(bus, BRCM_PSEUDO_PHY_ADDR,
+				     MDIO_DEVAD_NONE,
+				     REG_MII_DATA0 + i, temp & 0xffff);
+		if (ret)
+			return ret;
+		temp >>= 16;
+	}
+
+	return b53_mdio_op(bus, page, reg, REG_MII_ADDR_WRITE);
+}
+
+static inline int b53_read8(struct b53_device *dev, u8 page,
+			    u8 reg, u8 *value)
+{
+	return b53_mdio_read8(dev->bus, page, reg, value);
+}
+
+static inline int b53_read16(struct b53_device *dev, u8 page,
+			     u8 reg, u16 *value)
+{
+	return b53_mdio_read16(dev->bus, page, reg, value);
+}
+
+static inline int b53_read32(struct b53_device *dev, u8 page,
+			     u8 reg, u32 *value)
+{
+	return b53_mdio_read32(dev->bus, page, reg, value);
+}
+
+static inline int b53_read48(struct b53_device *dev, u8 page,
+			     u8 reg, u64 *value)
+{
+	return b53_mdio_read48(dev->bus, page, reg, value);
+}
+
+static inline int b53_read64(struct b53_device *dev, u8 page,
+			     u8 reg, u64 *value)
+{
+	return b53_mdio_read64(dev->bus, page, reg, value);
+}
+
+static inline int b53_write8(struct b53_device *dev, u8 page,
+			     u8 reg, u8 value)
+{
+	return b53_mdio_write8(dev->bus, page, reg, value);
+}
+
+static inline int b53_write16(struct b53_device *dev, u8 page,
+			      u8 reg, u16 value)
+{
+	return b53_mdio_write16(dev->bus, page, reg, value);
+}
+
+static inline int b53_write32(struct b53_device *dev, u8 page,
+			      u8 reg, u32 value)
+{
+	return b53_mdio_write32(dev->bus, page, reg, value);
+}
+
+static inline int b53_write48(struct b53_device *dev, u8 page,
+			      u8 reg, u64 value)
+{
+	return b53_mdio_write48(dev->bus, page, reg, value);
+}
+
+static inline int b53_write64(struct b53_device *dev, u8 page,
+			      u8 reg, u64 value)
+{
+	return b53_mdio_write64(dev->bus, page, reg, value);
+}
+
+static int b53_flush_arl(struct b53_device *dev, u8 mask)
+{
+	unsigned int i;
+
+	b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
+		   FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask);
+
+	for (i = 0; i < 10; i++) {
+		u8 fast_age_ctrl;
+
+		b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
+			  &fast_age_ctrl);
+
+		if (!(fast_age_ctrl & FAST_AGE_DONE))
+			goto out;
+
+		mdelay(1);
+	}
+
+	return -ETIMEDOUT;
+out:
+	/* Only age dynamic entries (default behavior) */
+	b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC);
+	return 0;
+}
+
+static int b53_switch_reset(struct phy_device *phydev)
+{
+	struct b53_device *dev = phydev->priv;
+	unsigned int timeout = 1000;
+	u8 mgmt;
+	u8 reg;
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, &reg);
+	reg |= SW_RST | EN_SW_RST | EN_CH_RST;
+	b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg);
+
+	do {
+		b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, &reg);
+		if (!(reg & SW_RST))
+			break;
+
+		mdelay(1);
+	} while (timeout-- > 0);
+
+	if (timeout == 0)
+		return -ETIMEDOUT;
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+	if (!(mgmt & SM_SW_FWD_EN)) {
+		mgmt &= ~SM_SW_FWD_MODE;
+		mgmt |= SM_SW_FWD_EN;
+
+		b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+		b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+		if (!(mgmt & SM_SW_FWD_EN)) {
+			printf("Failed to enable switch!\n");
+			return -EINVAL;
+		}
+	}
+
+	/* Include IMP port in dumb forwarding mode when no tagging protocol
+	 * is configured
+	 */
+	b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt);
+	mgmt |= B53_MII_DUMB_FWDG_EN;
+	b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt);
+
+	return b53_flush_arl(dev, FAST_AGE_STATIC);
+}
+
+static void b53_enable_cpu_port(struct phy_device *phydev)
+{
+	struct b53_device *dev = phydev->priv;
+	u8 port_ctrl;
+
+	port_ctrl = PORT_CTRL_RX_BCST_EN |
+		    PORT_CTRL_RX_MCST_EN |
+		    PORT_CTRL_RX_UCST_EN;
+	b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(dev->cpu_port), port_ctrl);
+
+	port_ctrl = PORT_OVERRIDE_EN | PORT_OVERRIDE_LINK |
+		    PORT_OVERRIDE_FULL_DUPLEX | PORT_OVERRIDE_SPEED_1000M;
+	b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, port_ctrl);
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_RGMII_CTRL_IMP, &port_ctrl);
+}
+
+static void b53_imp_vlan_setup(struct b53_device *dev, int cpu_port)
+{
+	unsigned int port;
+	u16 pvlan;
+
+	/* Enable the IMP port to be in the same VLAN as the other ports
+	 * on a per-port basis such that we only have Port i and IMP in
+	 * the same VLAN.
+	 */
+	for (port = 0; port < B53_N_PORTS; port++) {
+		if (!((1 << port) & CONFIG_B53_PHY_PORTS))
+			continue;
+
+		b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port),
+			   &pvlan);
+		pvlan |= BIT(cpu_port);
+		b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port),
+			    pvlan);
+	}
+}
+
+static int b53_port_enable(struct phy_device *phydev, unsigned int port)
+{
+	struct b53_device *dev = phydev->priv;
+	unsigned int cpu_port = dev->cpu_port;
+	u16 pvlan;
+
+	/* Clear the Rx and Tx disable bits and set to no spanning tree */
+	b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0);
+
+	/* Set this port, and only this one to be in the default VLAN */
+	b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan);
+	pvlan &= ~0x1ff;
+	pvlan |= BIT(port);
+	b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan);
+
+	b53_imp_vlan_setup(dev, cpu_port);
+
+	return 0;
+}
+
+static int b53_switch_init(struct phy_device *phydev)
+{
+	static int init;
+	int ret;
+
+	if (init)
+		return 0;
+
+	ret = b53_switch_reset(phydev);
+	if (ret < 0)
+		return ret;
+
+	b53_enable_cpu_port(phydev);
+
+	init = 1;
+
+	return 0;
+}
+
+static int b53_probe(struct phy_device *phydev)
+{
+	struct b53_device *dev;
+	int ret;
+
+	dev = malloc(sizeof(*dev));
+	if (!dev)
+		return -ENOMEM;
+
+	memset(dev, 0, sizeof(*dev));
+
+	phydev->priv = dev;
+	dev->bus = phydev->bus;
+	dev->cpu_port = CONFIG_B53_CPU_PORT;
+
+	ret = b53_switch_reset(phydev);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int b53_phy_config(struct phy_device *phydev)
+{
+	unsigned int port;
+	int res;
+
+	res = b53_switch_init(phydev);
+	if (res < 0)
+		return res;
+
+	for (port = 0; port < B53_N_PORTS; port++) {
+		if (!((1 << port) & CONFIG_B53_PHY_PORTS))
+			continue;
+
+		res = b53_port_enable(phydev, port);
+		if (res < 0) {
+			printf("Error enabling port %i\n", port);
+			continue;
+		}
+
+		res = genphy_config_aneg(phydev);
+		if (res < 0) {
+			printf("Error setting PHY %i autoneg\n", port);
+			continue;
+		}
+
+		res = 0;
+	}
+
+	return res;
+}
+
+static int b53_phy_startup(struct phy_device *phydev)
+{
+	unsigned int port;
+	int res;
+
+	for (port = 0; port < B53_N_PORTS; port++) {
+		if (!((1 << port) & CONFIG_B53_PHY_PORTS))
+			continue;
+
+		phydev->addr = port;
+
+		res = genphy_startup(phydev);
+		if (res < 0)
+			continue;
+		else
+			break;
+	}
+
+	/* Since we are connected directly to the switch, hardcode the link
+	 * parameters to match those of the CPU port configured in
+	 * b53_enable_cpu_port, we cannot be dependent on the user-facing port
+	 * settings (e.g: 100Mbits/sec would not work here)
+	 */
+	phydev->speed = 1000;
+	phydev->duplex = 1;
+	phydev->link = 1;
+
+	return 0;
+}
+
+static struct phy_driver b53_driver = {
+	.name = "Broadcom BCM53125",
+	.uid = 0x03625c00,
+	.mask = 0xfffffc00,
+	.features = PHY_GBIT_FEATURES,
+	.probe = b53_probe,
+	.config = b53_phy_config,
+	.startup = b53_phy_startup,
+	.shutdown = &genphy_shutdown,
+};
+
+int phy_b53_init(void)
+{
+	phy_register(&b53_driver);
+
+	return 0;
+}
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index fd3dd556c8..e31f3aa3a9 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -461,6 +461,9 @@ static LIST_HEAD(phy_drivers);
 
 int phy_init(void)
 {
+#ifdef CONFIG_B53_SWITCH
+	phy_b53_init();
+#endif
 #ifdef CONFIG_MV88E61XX_SWITCH
 	phy_mv88e61xx_init();
 #endif
diff --git a/include/phy.h b/include/phy.h
index 50f1e12f8c..0543ec10c2 100644
--- a/include/phy.h
+++ b/include/phy.h
@@ -257,6 +257,7 @@ int gen10g_startup(struct phy_device *phydev);
 int gen10g_shutdown(struct phy_device *phydev);
 int gen10g_discover_mmds(struct phy_device *phydev);
 
+int phy_b53_init(void);
 int phy_mv88e61xx_init(void);
 int phy_aquantia_init(void);
 int phy_atheros_init(void);