diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 971a57224821..0e84c22b5075 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -37,6 +37,21 @@ config DM_MDIO_MUX
 	  This is currently implemented in net/mdio-mux-uclass.c
 	  Look in include/miiphy.h for details.
 
+config DM_DSA
+	bool "Enable Driver Model for DSA switches"
+	depends on DM_ETH && DM_MDIO
+	depends on PHY_FIXED
+	help
+	  Enable driver model for DSA switches
+
+	  Adds UCLASS_DSA class supporting switches that follow the Distributed
+	  Switch Architecture (DSA).  These switches rely on the presence of a
+	  management switch port connected to an Ethernet controller capable of
+	  receiving frames from the switch.  This host Ethernet controller is
+	  called the "master" Ethernet interface in DSA terminology.
+	  This is currently implemented in net/dsa-uclass.c, refer to
+	  include/net/dsa.h for API details.
+
 config MDIO_SANDBOX
 	depends on DM_MDIO && SANDBOX
 	default y
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h
index ae4425d7a57a..d75de368c5a8 100644
--- a/include/dm/uclass-id.h
+++ b/include/dm/uclass-id.h
@@ -46,6 +46,7 @@ enum uclass_id {
 	UCLASS_DISPLAY,		/* Display (e.g. DisplayPort, HDMI) */
 	UCLASS_DSI_HOST,	/* Display Serial Interface host */
 	UCLASS_DMA,		/* Direct Memory Access */
+	UCLASS_DSA,		/* Distributed (Ethernet) Switch Architecture */
 	UCLASS_EFI,		/* EFI managed devices */
 	UCLASS_ETH,		/* Ethernet device */
 	UCLASS_ETH_PHY,		/* Ethernet PHY device */
diff --git a/include/net.h b/include/net.h
index 13da69b7c145..b95d6a6f60eb 100644
--- a/include/net.h
+++ b/include/net.h
@@ -499,7 +499,13 @@ struct icmp_hdr {
  * maximum packet size and multiple of 32 bytes =  1536
  */
 #define PKTSIZE			1522
+#ifndef CONFIG_DM_DSA
 #define PKTSIZE_ALIGN		1536
+#else
+/* Maximum DSA tagging overhead (headroom and/or tailroom) */
+#define DSA_MAX_OVR		256
+#define PKTSIZE_ALIGN		(1536 + DSA_MAX_OVR)
+#endif
 
 /*
  * Maximum receive ring size; that is, the number of packets
diff --git a/include/net/dsa.h b/include/net/dsa.h
new file mode 100644
index 000000000000..0f31a908c9d1
--- /dev/null
+++ b/include/net/dsa.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2019-2021 NXP Semiconductors
+ */
+
+#ifndef __DSA_H__
+#define __DSA_H__
+
+#include <phy.h>
+#include <net.h>
+
+/**
+ * DSA stands for Distributed Switch Architecture and it is infrastructure
+ * intended to support drivers for Switches that rely on an intermediary
+ * Ethernet device for I/O.  These switches may support cascading allowing
+ * them to be arranged as a tree.
+ * DSA is documented in detail in the Linux kernel documentation under
+ * Documentation/networking/dsa/dsa.txt
+ * The network layout of such a switch is shown below:
+ *
+ *                      |------|
+ *                      | eth0 | <--- master eth device (regular eth driver)
+ *                      |------|
+ *                        ^  |
+ * tag added by switch -->|  |
+ *                        |  |
+ *                        |  |<-- tag added by DSA driver
+ *                        |  v
+ *      |--------------------------------------|
+ *      |             | CPU port |             | <-- DSA (switch) device
+ *      |             ------------             |     (DSA driver)
+ *      | _________  _________       _________ |
+ *      | | port0 |  | port1 |  ...  | portn | | <-- ports as eth devices
+ *      |-+-------+--+-------+-------+-------+-|     ('dsa-port' eth driver)
+ *
+ * In U-Boot the intent is to allow access to front panel ports (shown at the
+ * bottom of the picture) through the master Ethernet dev (eth0 in the picture).
+ * Front panel ports are presented as regular Ethernet devices in U-Boot and
+ * they are expected to support the typical networking commands.
+ * In general DSA switches require the use of tags, extra headers added both by
+ * software on Tx and by the switch on Rx.  These tags carry at a minimum port
+ * information and switch information for cascaded set-ups.
+ * In U-Boot these tags are inserted and parsed by the DSA switch driver, the
+ * class code helps with headroom/tailroom for the extra headers.
+ *
+ * TODO:
+ * - handle switch cascading, for now U-Boot only supports stand-alone switches.
+ * - Add support to probe DSA switches connected to a MDIO bus, this is needed
+ * to convert switch drivers that are now under drivers/net/phy.
+ */
+
+#define DSA_PORT_NAME_LENGTH	16
+
+/* Maximum number of ports each DSA device can have */
+#define DSA_MAX_PORTS		12
+
+/**
+ * struct dsa_ops - DSA operations
+ *
+ * @port_enable:  Initialize a switch port for I/O.
+ * @port_disable: Disable I/O for a port.
+ * @xmit:         Insert the DSA tag for transmission.
+ *                DSA drivers receive a copy of the packet with headroom and
+ *                tailroom reserved and set to 0. 'packet' points to headroom
+ *                and 'length' is updated to include both head and tailroom.
+ * @rcv:          Process the DSA tag on reception and return the port index
+ *                from the h/w provided tag. Return the index via 'portp'.
+ *                'packet' and 'length' describe the frame as received from
+ *                master including any additional headers.
+ */
+struct dsa_ops {
+	int (*port_enable)(struct udevice *dev, int port,
+			   struct phy_device *phy);
+	void (*port_disable)(struct udevice *dev, int port,
+			     struct phy_device *phy);
+	int (*xmit)(struct udevice *dev, int port, void *packet, int length);
+	int (*rcv)(struct udevice *dev, int *portp, void *packet, int length);
+};
+
+#define dsa_get_ops(dev) ((struct dsa_ops *)(dev)->driver->ops)
+
+/**
+ * struct dsa_port_pdata - DSA port platform data
+ *
+ * @phy:   PHY device associated with this port.
+ *         The uclass code attempts to set this field for all ports except CPU
+ *         port, based on DT information.  It may be NULL.
+ * @index: Port index in the DSA switch, set by the uclass code.
+ * @name:  Name of the port Eth device.  If a label property is present in the
+ *         port DT node, it is used as name.
+ */
+struct dsa_port_pdata {
+	struct phy_device *phy;
+	u32 index;
+	char name[DSA_PORT_NAME_LENGTH];
+};
+
+/**
+ * struct dsa_pdata - Per-device platform data for DSA DM
+ *
+ * @num_ports:   Number of ports the device has, must be <= DSA_MAX_PORTS.
+ *		 This number is extracted from the DT 'ports' node of this
+ *		 DSA device, and it counts the CPU port and all the other
+ *		 port subnodes including the disabled ones.
+ * @cpu_port:    Index of the switch port linked to the master Ethernet.
+ *		 The uclass code sets this based on DT information.
+ * @master_node: OF node of the host Ethernet controller.
+ * @cpu_port_node: DT node of the switch's CPU port.
+ */
+struct dsa_pdata {
+	int num_ports;
+	u32 cpu_port;
+	ofnode master_node;
+	ofnode cpu_port_node;
+};
+
+/**
+ * dsa_set_tagging() - Configure the headroom and/or tailroom sizes
+ *
+ * The DSA class code allocates headroom and tailroom on Tx before
+ * calling the DSA driver's xmit function.
+ * All drivers must call this at probe time.
+ *
+ * @dev:	DSA device pointer
+ * @headroom:	Size, in bytes, of headroom needed for the DSA tag.
+ * @tailroom:	Size, in bytes, of tailroom needed for the DSA tag.
+ *		Total headroom and tailroom size should not exceed
+ *		DSA_MAX_OVR.
+ * @return 0 if OK, -ve on error
+ */
+int dsa_set_tagging(struct udevice *dev, ushort headroom, ushort tailroom);
+
+/* DSA helpers */
+
+/**
+ * dsa_get_master() - Return a reference to the master Ethernet device
+ *
+ * Can be called at driver probe time or later.
+ *
+ * @dev:	DSA device pointer
+ * @return Master Eth 'udevice' pointer if OK, NULL on error
+ */
+struct udevice *dsa_get_master(struct udevice *dev);
+
+/**
+ * dsa_port_get_pdata() - Helper that returns the platdata of an active
+ *			(non-CPU) DSA port device.
+ *
+ * Can be called at driver probe time or later.
+ *
+ * @pdev:	DSA port device pointer
+ * @return 'dsa_port_pdata' pointer if OK, NULL on error
+ */
+static inline struct dsa_port_pdata *
+	dsa_port_get_pdata(struct udevice *pdev)
+{
+	struct eth_pdata *eth = dev_get_plat(pdev);
+
+	if (!eth)
+		return NULL;
+
+	return eth->priv_pdata;
+}
+
+#endif /* __DSA_H__ */
diff --git a/net/Makefile b/net/Makefile
index 76527f704c47..fb3eba840fff 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_NET)      += arp.o
 obj-$(CONFIG_CMD_BOOTP) += bootp.o
 obj-$(CONFIG_CMD_CDP)  += cdp.o
 obj-$(CONFIG_CMD_DNS)  += dns.o
+obj-$(CONFIG_DM_DSA)   += dsa-uclass.o
 ifdef CONFIG_DM_ETH
 obj-$(CONFIG_NET)      += eth-uclass.o
 else
diff --git a/net/dsa-uclass.c b/net/dsa-uclass.c
new file mode 100644
index 000000000000..2ce9ddb90d25
--- /dev/null
+++ b/net/dsa-uclass.c
@@ -0,0 +1,478 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2019-2021 NXP
+ */
+
+#include <net/dsa.h>
+#include <dm/lists.h>
+#include <dm/device_compat.h>
+#include <dm/device-internal.h>
+#include <dm/uclass-internal.h>
+#include <linux/bitmap.h>
+#include <miiphy.h>
+
+#define DSA_PORT_CHILD_DRV_NAME "dsa-port"
+
+/* per-device internal state structure */
+struct dsa_priv {
+	struct phy_device *cpu_port_fixed_phy;
+	struct udevice *master_dev;
+	int num_ports;
+	u32 cpu_port;
+	int headroom;
+	int tailroom;
+};
+
+/* external API */
+int dsa_set_tagging(struct udevice *dev, ushort headroom, ushort tailroom)
+{
+	struct dsa_priv *priv;
+
+	if (!dev || !dev_get_uclass_priv(dev))
+		return -ENODEV;
+
+	if (headroom + tailroom > DSA_MAX_OVR)
+		return -EINVAL;
+
+	priv = dev_get_uclass_priv(dev);
+
+	if (headroom > 0)
+		priv->headroom = headroom;
+	if (tailroom > 0)
+		priv->tailroom = tailroom;
+
+	return 0;
+}
+
+/* returns the DSA master Ethernet device */
+struct udevice *dsa_get_master(struct udevice *dev)
+{
+	struct dsa_priv *priv = dev_get_uclass_priv(dev);
+
+	if (!priv)
+		return NULL;
+
+	return priv->master_dev;
+}
+
+/*
+ * Start the desired port, the CPU port and the master Eth interface.
+ * TODO: if cascaded we may need to _start ports in other switches too
+ */
+static int dsa_port_start(struct udevice *pdev)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct dsa_priv *priv = dev_get_uclass_priv(dev);
+	struct udevice *master = dsa_get_master(dev);
+	struct dsa_ops *ops = dsa_get_ops(dev);
+	int err;
+
+	if (!priv)
+		return -ENODEV;
+
+	if (!master) {
+		dev_err(pdev, "DSA master Ethernet device not found!\n");
+		return -EINVAL;
+	}
+
+	if (ops->port_enable) {
+		struct dsa_port_pdata *port_pdata;
+
+		port_pdata = dev_get_parent_plat(pdev);
+		err = ops->port_enable(dev, port_pdata->index,
+				       port_pdata->phy);
+		if (err)
+			return err;
+
+		err = ops->port_enable(dev, priv->cpu_port,
+				       priv->cpu_port_fixed_phy);
+		if (err)
+			return err;
+	}
+
+	return eth_get_ops(master)->start(master);
+}
+
+/* Stop the desired port, the CPU port and the master Eth interface */
+static void dsa_port_stop(struct udevice *pdev)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct dsa_priv *priv = dev_get_uclass_priv(dev);
+	struct udevice *master = dsa_get_master(dev);
+	struct dsa_ops *ops = dsa_get_ops(dev);
+
+	if (!priv)
+		return;
+
+	if (ops->port_disable) {
+		struct dsa_port_pdata *port_pdata;
+
+		port_pdata = dev_get_parent_plat(pdev);
+		ops->port_disable(dev, port_pdata->index, port_pdata->phy);
+		ops->port_disable(dev, priv->cpu_port, NULL);
+	}
+
+	/*
+	 * stop master only if it's active, don't probe it otherwise.
+	 * Under normal usage it would be active because we're using it, but
+	 * during tear-down it may have been removed ahead of us.
+	 */
+	if (master && device_active(master))
+		eth_get_ops(master)->stop(master);
+}
+
+/*
+ * Insert a DSA tag and call master Ethernet send on the resulting packet
+ * We copy the frame to a stack buffer where we have reserved headroom and
+ * tailroom space.  Headroom and tailroom are set to 0.
+ */
+static int dsa_port_send(struct udevice *pdev, void *packet, int length)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct dsa_priv *priv = dev_get_uclass_priv(dev);
+	int head = priv->headroom, tail = priv->tailroom;
+	struct udevice *master = dsa_get_master(dev);
+	struct dsa_ops *ops = dsa_get_ops(dev);
+	uchar dsa_packet_tmp[PKTSIZE_ALIGN];
+	struct dsa_port_pdata *port_pdata;
+	int err;
+
+	if (!master)
+		return -EINVAL;
+
+	if (length + head + tail > PKTSIZE_ALIGN)
+		return -EINVAL;
+
+	memset(dsa_packet_tmp, 0, head);
+	memset(dsa_packet_tmp + head + length, 0, tail);
+	memcpy(dsa_packet_tmp + head, packet, length);
+	length += head + tail;
+	/* copy back to preserve original buffer alignment */
+	memcpy(packet, dsa_packet_tmp, length);
+
+	port_pdata = dev_get_parent_plat(pdev);
+	err = ops->xmit(dev, port_pdata->index, packet, length);
+	if (err)
+		return err;
+
+	return eth_get_ops(master)->send(master, packet, length);
+}
+
+/* Receive a frame from master Ethernet, process it and pass it on */
+static int dsa_port_recv(struct udevice *pdev, int flags, uchar **packetp)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct dsa_priv *priv = dev_get_uclass_priv(dev);
+	int head = priv->headroom, tail = priv->tailroom;
+	struct udevice *master = dsa_get_master(dev);
+	struct dsa_ops *ops = dsa_get_ops(dev);
+	struct dsa_port_pdata *port_pdata;
+	int length, port_index, err;
+
+	if (!master)
+		return -EINVAL;
+
+	length = eth_get_ops(master)->recv(master, flags, packetp);
+	if (length <= 0)
+		return length;
+
+	/*
+	 * If we receive frames from a different port or frames that DSA driver
+	 * doesn't like we discard them here.
+	 * In case of discard we return with no frame and expect to be called
+	 * again instead of looping here, so upper layer can deal with timeouts.
+	 */
+	port_pdata = dev_get_parent_plat(pdev);
+	err = ops->rcv(dev, &port_index, *packetp, length);
+	if (err || port_index != port_pdata->index || (length <= head + tail)) {
+		if (eth_get_ops(master)->free_pkt)
+			eth_get_ops(master)->free_pkt(master, *packetp, length);
+		return -EAGAIN;
+	}
+
+	/*
+	 * We move the pointer over headroom here to avoid a copy.  If free_pkt
+	 * gets called we move the pointer back before calling master free_pkt.
+	 */
+	*packetp += head;
+
+	return length - head - tail;
+}
+
+static int dsa_port_free_pkt(struct udevice *pdev, uchar *packet, int length)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct udevice *master = dsa_get_master(dev);
+	struct dsa_priv *priv;
+
+	if (!master)
+		return -EINVAL;
+
+	priv = dev_get_uclass_priv(dev);
+	if (eth_get_ops(master)->free_pkt) {
+		/* return the original pointer and length to master Eth */
+		packet -= priv->headroom;
+		length += priv->headroom - priv->tailroom;
+
+		return eth_get_ops(master)->free_pkt(master, packet, length);
+	}
+
+	return 0;
+}
+
+static int dsa_port_of_to_pdata(struct udevice *pdev)
+{
+	struct dsa_port_pdata *port_pdata;
+	struct dsa_pdata *dsa_pdata;
+	struct eth_pdata *eth_pdata;
+	struct udevice *dev;
+	const char *label;
+	u32 index;
+	int err;
+
+	if (!pdev)
+		return -ENODEV;
+
+	err = ofnode_read_u32(dev_ofnode(pdev), "reg", &index);
+	if (err)
+		return err;
+
+	dev = dev_get_parent(pdev);
+	dsa_pdata = dev_get_uclass_plat(dev);
+
+	port_pdata = dev_get_parent_plat(pdev);
+	port_pdata->index = index;
+
+	label = ofnode_read_string(dev_ofnode(pdev), "label");
+	if (label)
+		strncpy(port_pdata->name, label, DSA_PORT_NAME_LENGTH);
+
+	eth_pdata = dev_get_plat(pdev);
+	eth_pdata->priv_pdata = port_pdata;
+
+	dev_dbg(pdev, "port %d node %s\n", port_pdata->index,
+		ofnode_get_name(dev_ofnode(pdev)));
+
+	return 0;
+}
+
+static const struct eth_ops dsa_port_ops = {
+	.start		= dsa_port_start,
+	.send		= dsa_port_send,
+	.recv		= dsa_port_recv,
+	.stop		= dsa_port_stop,
+	.free_pkt	= dsa_port_free_pkt,
+};
+
+static int dsa_port_probe(struct udevice *pdev)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct eth_pdata *eth_pdata, *master_pdata;
+	unsigned char env_enetaddr[ARP_HLEN];
+	struct dsa_port_pdata *port_pdata;
+	struct dsa_priv *dsa_priv;
+	struct udevice *master;
+
+	port_pdata = dev_get_parent_plat(pdev);
+	dsa_priv = dev_get_uclass_priv(dev);
+
+	port_pdata->phy = dm_eth_phy_connect(pdev);
+	if (!port_pdata->phy)
+		return -ENODEV;
+
+	/*
+	 * Inherit port's hwaddr from the DSA master, unless the port already
+	 * has a unique MAC address specified in the environment.
+	 */
+	eth_env_get_enetaddr_by_index("eth", dev_seq(pdev), env_enetaddr);
+	if (!is_zero_ethaddr(env_enetaddr))
+		return 0;
+
+	master = dsa_get_master(dev);
+	if (!master)
+		return 0;
+
+	master_pdata = dev_get_plat(master);
+	eth_pdata = dev_get_plat(pdev);
+	memcpy(eth_pdata->enetaddr, master_pdata->enetaddr, ARP_HLEN);
+	eth_env_set_enetaddr_by_index("eth", dev_seq(pdev),
+				      master_pdata->enetaddr);
+
+	return 0;
+}
+
+static int dsa_port_remove(struct udevice *pdev)
+{
+	struct udevice *dev = dev_get_parent(pdev);
+	struct dsa_port_pdata *port_pdata;
+	struct dsa_priv *dsa_priv;
+
+	port_pdata = dev_get_parent_plat(pdev);
+	dsa_priv = dev_get_uclass_priv(dev);
+
+	port_pdata->phy = NULL;
+
+	return 0;
+}
+
+U_BOOT_DRIVER(dsa_port) = {
+	.name	= DSA_PORT_CHILD_DRV_NAME,
+	.id	= UCLASS_ETH,
+	.ops	= &dsa_port_ops,
+	.probe	= dsa_port_probe,
+	.remove	= dsa_port_remove,
+	.of_to_plat = dsa_port_of_to_pdata,
+	.plat_auto = sizeof(struct eth_pdata),
+};
+
+/*
+ * This function mostly deals with pulling information out of the device tree
+ * into the pdata structure.
+ * It goes through the list of switch ports, registers an eth device for each
+ * front panel port and identifies the cpu port connected to master eth device.
+ * TODO: support cascaded switches
+ */
+static int dsa_post_bind(struct udevice *dev)
+{
+	struct dsa_pdata *pdata = dev_get_uclass_plat(dev);
+	ofnode node = dev_ofnode(dev), pnode;
+	int i, err, first_err = 0;
+
+	if (!pdata || !ofnode_valid(node))
+		return -ENODEV;
+
+	pdata->master_node = ofnode_null();
+
+	node = ofnode_find_subnode(node, "ports");
+	if (!ofnode_valid(node))
+		node = ofnode_find_subnode(node, "ethernet-ports");
+	if (!ofnode_valid(node)) {
+		dev_err(dev, "ports node is missing under DSA device!\n");
+		return -EINVAL;
+	}
+
+	pdata->num_ports = ofnode_get_child_count(node);
+	if (pdata->num_ports <= 0 || pdata->num_ports > DSA_MAX_PORTS) {
+		dev_err(dev, "invalid number of ports (%d)\n",
+			pdata->num_ports);
+		return -EINVAL;
+	}
+
+	/* look for the CPU port */
+	ofnode_for_each_subnode(pnode, node) {
+		u32 ethernet;
+
+		if (ofnode_read_u32(pnode, "ethernet", &ethernet))
+			continue;
+
+		pdata->master_node = ofnode_get_by_phandle(ethernet);
+		pdata->cpu_port_node = pnode;
+		break;
+	}
+
+	if (!ofnode_valid(pdata->master_node)) {
+		dev_err(dev, "master eth node missing!\n");
+		return -EINVAL;
+	}
+
+	if (ofnode_read_u32(pnode, "reg", &pdata->cpu_port)) {
+		dev_err(dev, "CPU port node not valid!\n");
+		return -EINVAL;
+	}
+
+	dev_dbg(dev, "master node %s on port %d\n",
+		ofnode_get_name(pdata->master_node), pdata->cpu_port);
+
+	for (i = 0; i < pdata->num_ports; i++) {
+		char name[DSA_PORT_NAME_LENGTH];
+		struct udevice *pdev;
+
+		/*
+		 * If this is the CPU port don't register it as an ETH device,
+		 * we skip it on purpose since I/O to/from it from the CPU
+		 * isn't useful.
+		 */
+		if (i == pdata->cpu_port)
+			continue;
+
+		/*
+		 * Set up default port names.  If present, DT port labels
+		 * will override the default port names.
+		 */
+		snprintf(name, DSA_PORT_NAME_LENGTH, "%s@%d", dev->name, i);
+
+		ofnode_for_each_subnode(pnode, node) {
+			u32 reg;
+
+			if (ofnode_read_u32(pnode, "reg", &reg))
+				continue;
+
+			if (reg == i)
+				break;
+		}
+
+		/*
+		 * skip registration if port id not found or if the port
+		 * is explicitly disabled in DT
+		 */
+		if (!ofnode_valid(pnode) || !ofnode_is_available(pnode))
+			continue;
+
+		err = device_bind_driver_to_node(dev, DSA_PORT_CHILD_DRV_NAME,
+						 name, pnode, &pdev);
+		if (pdev) {
+			struct dsa_port_pdata *port_pdata;
+
+			port_pdata = dev_get_parent_plat(pdev);
+			strncpy(port_pdata->name, name, DSA_PORT_NAME_LENGTH);
+			pdev->name = port_pdata->name;
+		}
+
+		/* try to bind all ports but keep 1st error */
+		if (err && !first_err)
+			first_err = err;
+	}
+
+	if (first_err)
+		return first_err;
+
+	dev_dbg(dev, "DSA ports successfully bound\n");
+
+	return 0;
+}
+
+/**
+ * Initialize the uclass per device internal state structure (priv).
+ * TODO: pick up references to other switch devices here, if we're cascaded.
+ */
+static int dsa_pre_probe(struct udevice *dev)
+{
+	struct dsa_pdata *pdata = dev_get_uclass_plat(dev);
+	struct dsa_priv *priv = dev_get_uclass_priv(dev);
+
+	if (!pdata || !priv)
+		return -ENODEV;
+
+	priv->num_ports = pdata->num_ports;
+	priv->cpu_port = pdata->cpu_port;
+	priv->cpu_port_fixed_phy = fixed_phy_create(pdata->cpu_port_node);
+	if (!priv->cpu_port_fixed_phy) {
+		dev_err(dev, "Failed to register fixed-link for CPU port\n");
+		return -ENODEV;
+	}
+
+	uclass_find_device_by_ofnode(UCLASS_ETH, pdata->master_node,
+				     &priv->master_dev);
+	return 0;
+}
+
+UCLASS_DRIVER(dsa) = {
+	.id = UCLASS_DSA,
+	.name = "dsa",
+	.post_bind = dsa_post_bind,
+	.pre_probe = dsa_pre_probe,
+	.per_device_auto = sizeof(struct dsa_priv),
+	.per_device_plat_auto = sizeof(struct dsa_pdata),
+	.per_child_plat_auto = sizeof(struct dsa_port_pdata),
+	.flags = DM_UC_FLAG_SEQ_ALIAS,
+};
