drivers/ethernet/eth_litex_liteeth.c - third_party/github/zephyrproject-rtos/zephyr - Git at Google

 /*
  * Copyright (c) 2019 Antmicro <www.antmicro.com>
  * Copyright (c) 2024 Vogl Electronic GmbH
  *
  * SPDX-License-Identifier: Apache-2.0
  */

 #define DT_DRV_COMPAT litex_liteeth

 #define LOG_MODULE_NAME eth_litex_liteeth
 #define LOG_LEVEL CONFIG_ETHERNET_LOG_LEVEL

 #include <zephyr/logging/log.h>
 LOG_MODULE_REGISTER(LOG_MODULE_NAME);

 #include <zephyr/kernel.h>
 #include <zephyr/device.h>
 #include <soc.h>
 #include <stdbool.h>
 #include <zephyr/net/ethernet.h>
 #include <zephyr/net/net_if.h>
 #include <zephyr/net/net_pkt.h>
 #include <zephyr/net/phy.h>

 #include <zephyr/sys/printk.h>
 #include <zephyr/irq.h>

 #include "eth.h"

 #define MAX_TX_FAILURE K_MSEC(100)

 #define ETH_LITEX_SLOT_SIZE 0x0800

 struct eth_litex_dev_data {
 	struct net_if *iface;
 	uint8_t mac_addr[6];
 	uint8_t txslot;
 	struct k_mutex tx_mutex;
 	struct k_sem sem_tx_ready;
 };

 struct eth_litex_config {
 	const struct device *phy_dev;
 	void (*config_func)(const struct device *dev);
 	bool random_mac_address;
 	uint32_t rx_slot_addr;
 	uint32_t rx_length_addr;
 	uint32_t rx_ev_pending_addr;
 	uint32_t rx_ev_enable_addr;
 	uint32_t tx_start_addr;
 	uint32_t tx_ready_addr;
 	uint32_t tx_slot_addr;
 	uint32_t tx_length_addr;
 	uint32_t tx_ev_pending_addr;
 	uint32_t tx_ev_enable_addr;
 	uint32_t tx_buf_addr;
 	uint32_t rx_buf_addr;
 	uint8_t tx_buf_n;
 	uint8_t rx_buf_n;
 };

 static int eth_initialize(const struct device *dev)
 {
 	const struct eth_litex_config *config = dev->config;
 	struct eth_litex_dev_data *context = dev->data;

 	k_mutex_init(&context->tx_mutex);
 	k_sem_init(&context->sem_tx_ready, 1, 1);

 	config->config_func(dev);

 	if (config->random_mac_address) {
 		/* generate random MAC address */
 		gen_random_mac(context->mac_addr, 0x10, 0xe2, 0xd5);
 	}

 	return 0;
 }

 static int eth_tx(const struct device *dev, struct net_pkt *pkt)
 {
 	uint16_t len;
 	struct eth_litex_dev_data *context = dev->data;
 	const struct eth_litex_config *config = dev->config;
 	int ret;

 	k_mutex_lock(&context->tx_mutex, K_FOREVER);

 	/* get data from packet and send it */
 	len = net_pkt_get_len(pkt);
 	net_pkt_read(pkt,
 		     UINT_TO_POINTER(config->tx_buf_addr + (context->txslot * ETH_LITEX_SLOT_SIZE)),
 		     len);

 	litex_write8(context->txslot, config->tx_slot_addr);
 	litex_write16(len, config->tx_length_addr);

 	/* wait for the device to be ready to transmit */
 	ret = k_sem_take(&context->sem_tx_ready, MAX_TX_FAILURE);
 	if (ret < 0) {
 		goto error;
 	};
 	/* start transmitting */
 	litex_write8(1, config->tx_start_addr);

 	/* change slot */
 	context->txslot = (context->txslot + 1) % config->tx_buf_n;

 	k_mutex_unlock(&context->tx_mutex);

 	return 0;
 error:
 	k_mutex_unlock(&context->tx_mutex);
 	LOG_ERR("TX fifo failed");
 	return -EIO;
 }

 static void eth_rx(const struct device *port)
 {
 	struct net_pkt *pkt;
 	struct eth_litex_dev_data *context = port->data;
 	const struct eth_litex_config *config = port->config;

 	int r;
 	uint16_t len = 0;
 	uint8_t rxslot = 0;

 	if (!net_if_flag_is_set(context->iface, NET_IF_UP)) {
 		return;
 	}

 	/* get frame's length */
 	len = litex_read16(config->rx_length_addr);

 	/* which slot is the frame in */
 	rxslot = litex_read8(config->rx_slot_addr);

 	/* obtain rx buffer */
 	pkt = net_pkt_rx_alloc_with_buffer(context->iface, len, AF_UNSPEC, 0,
 					   K_NO_WAIT);
 	if (pkt == NULL) {
 		LOG_ERR("Failed to obtain RX buffer of length %u", len);
 		return;
 	}

 	/* copy data to buffer */
 	if (net_pkt_write(pkt,
 			  UINT_TO_POINTER(config->rx_buf_addr + (rxslot * ETH_LITEX_SLOT_SIZE)),
 			  len) != 0) {
 		LOG_ERR("Failed to append RX buffer to context buffer");
 		net_pkt_unref(pkt);
 		return;
 	}

 	/* receive data */
 	r = net_recv_data(context->iface, pkt);
 	if (r < 0) {
 		LOG_ERR("Failed to enqueue frame into RX queue: %d", r);
 		net_pkt_unref(pkt);
 	}
 }

 static void eth_irq_handler(const struct device *port)
 {
 	struct eth_litex_dev_data *context = port->data;
 	const struct eth_litex_config *config = port->config;
 	/* check sram reader events (tx) */
 	if (litex_read8(config->tx_ev_pending_addr) & BIT(0)) {
 		k_sem_give(&context->sem_tx_ready);

 		/* ack reader irq */
 		litex_write8(BIT(0), config->tx_ev_pending_addr);
 	}

 	/* check sram writer events (rx) */
 	if (litex_read8(config->rx_ev_pending_addr) & BIT(0)) {
 		eth_rx(port);

 		/* ack writer irq */
 		litex_write8(BIT(0), config->rx_ev_pending_addr);
 	}
 }

 static int eth_set_config(const struct device *dev, enum ethernet_config_type type,
 			  const struct ethernet_config *config)
 {
 	struct eth_litex_dev_data *context = dev->data;
 	int ret = -ENOTSUP;

 	switch (type) {
 	case ETHERNET_CONFIG_TYPE_MAC_ADDRESS:
 		memcpy(context->mac_addr, config->mac_address.addr, sizeof(context->mac_addr));
 		ret = net_if_set_link_addr(context->iface, context->mac_addr,
 					   sizeof(context->mac_addr), NET_LINK_ETHERNET);
 		break;
 	default:
 		break;
 	}

 	return ret;
 }

 static int eth_start(const struct device *dev)
 {
 	struct eth_litex_dev_data *context = dev->data;
 	const struct eth_litex_config *config = dev->config;

 	if (litex_read8(config->tx_ready_addr)) {
 		k_sem_give(&context->sem_tx_ready);
 	}

 	litex_write8(1, config->tx_ev_enable_addr);
 	litex_write8(1, config->rx_ev_enable_addr);

 	litex_write8(BIT(0), config->tx_ev_pending_addr);
 	litex_write8(BIT(0), config->rx_ev_pending_addr);

 	return 0;
 }

 static int eth_stop(const struct device *dev)
 {
 	const struct eth_litex_config *config = dev->config;

 	litex_write8(0, config->tx_ev_enable_addr);
 	litex_write8(0, config->rx_ev_enable_addr);

 	return 0;
 }

 static const struct device *eth_get_phy(const struct device *dev)
 {
 	const struct eth_litex_config *config = dev->config;

 	return config->phy_dev;
 }

 static void phy_link_state_changed(const struct device *phy_dev,
 				   struct phy_link_state *state,
 				   void *user_data)
 {
 	const struct device *dev = (const struct device *)user_data;
 	struct eth_litex_dev_data *context = dev->data;

 	ARG_UNUSED(phy_dev);

 	if (state->is_up) {
 		net_eth_carrier_on(context->iface);
 	} else {
 		net_eth_carrier_off(context->iface);
 	}
 }

 static void eth_iface_init(struct net_if *iface)
 {
 	const struct device *port = net_if_get_device(iface);
 	const struct eth_litex_config *config = port->config;
 	struct eth_litex_dev_data *context = port->data;

 	/* set interface */
 	if (context->iface == NULL) {
 		context->iface = iface;
 	}

 	/* initialize ethernet L2 */
 	ethernet_init(iface);

 	/* set MAC address */
 	if (net_if_set_link_addr(iface, context->mac_addr, sizeof(context->mac_addr),
 			     NET_LINK_ETHERNET) < 0) {
 		LOG_ERR("setting mac failed");
 		return;
 	}

 	if (config->phy_dev == NULL) {
 		LOG_WRN("No PHY device");
 		return;
 	}

 	net_if_carrier_off(iface);

 	if (device_is_ready(config->phy_dev)) {
 		phy_link_callback_set(config->phy_dev, phy_link_state_changed, (void *)port);
 	} else {
 		LOG_ERR("PHY device not ready");
 	}
 }

 static enum ethernet_hw_caps eth_caps(const struct device *dev)
 {
 	ARG_UNUSED(dev);

 	return
 #ifdef CONFIG_NET_VLAN
 		ETHERNET_HW_VLAN |
 #endif
 		ETHERNET_LINK_10BASE | ETHERNET_LINK_100BASE | ETHERNET_LINK_1000BASE;
 }

 static const struct ethernet_api eth_api = {
 	.iface_api.init = eth_iface_init,
 	.start = eth_start,
 	.stop = eth_stop,
 	.get_capabilities = eth_caps,
 	.set_config = eth_set_config,
 	.get_phy = eth_get_phy,
 	.send = eth_tx
 };

 #define ETH_LITEX_SLOT_RX_ADDR(n)                                                                  \
 	DT_INST_REG_ADDR_BY_NAME_OR(n, rx_buffers, (DT_INST_REG_ADDR_BY_NAME(n, buffers)))
 #define ETH_LITEX_SLOT_TX_ADDR(n)                                                                  \
 	DT_INST_REG_ADDR_BY_NAME_OR(n, tx_buffers,                                                 \
 				    (DT_INST_REG_ADDR_BY_NAME(n, buffers) +                        \
 				     (DT_INST_REG_SIZE_BY_NAME(n, buffers) / 2)))
 #define ETH_LITEX_SLOT_RX_N(n)                                                                     \
 	(DT_INST_REG_SIZE_BY_NAME_OR(n, rx_buffers, (DT_INST_REG_SIZE_BY_NAME(n, buffers) / 2)) /  \
 	 ETH_LITEX_SLOT_SIZE)
 #define ETH_LITEX_SLOT_TX_N(n)                                                                     \
 	(DT_INST_REG_SIZE_BY_NAME_OR(n, tx_buffers, (DT_INST_REG_SIZE_BY_NAME(n, buffers) / 2)) /  \
 	 ETH_LITEX_SLOT_SIZE)

 #define ETH_LITEX_INIT(n)                                                                          \
                                                                                                    \
 	static void eth_irq_config##n(const struct device *dev)                                    \
 	{                                                                                          \
 		IRQ_CONNECT(DT_INST_IRQN(n), DT_INST_IRQ(n, priority), eth_irq_handler,            \
 			    DEVICE_DT_INST_GET(n), 0);                                             \
                                                                                                    \
 		irq_enable(DT_INST_IRQN(n));                                                       \
 	}                                                                                          \
                                                                                                    \
 	static struct eth_litex_dev_data eth_data##n = {                                           \
 		.mac_addr = DT_INST_PROP_OR(n, local_mac_address, {0}),			           \
 	};                                                                                         \
                                                                                                    \
 	static const struct eth_litex_config eth_config##n = {                                     \
 		.phy_dev = DEVICE_DT_GET_OR_NULL(DT_INST_PHANDLE(n, phy_handle)),                  \
 		.config_func = eth_irq_config##n,                                                  \
 		.random_mac_address = DT_INST_PROP(n, zephyr_random_mac_address),                  \
 		.rx_slot_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_slot),                              \
 		.rx_length_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_length),                          \
 		.rx_ev_pending_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_ev_pending),                  \
 		.rx_ev_enable_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_ev_enable),                    \
 		.tx_start_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_start),                            \
 		.tx_ready_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_ready),                            \
 		.tx_slot_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_slot),                              \
 		.tx_length_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_length),                          \
 		.tx_ev_pending_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_ev_pending),                  \
 		.tx_ev_enable_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_ev_enable),                    \
 		.rx_buf_addr = ETH_LITEX_SLOT_RX_ADDR(n),                                          \
 		.tx_buf_addr = ETH_LITEX_SLOT_TX_ADDR(n),                                          \
 		.rx_buf_n = ETH_LITEX_SLOT_RX_N(n),                                                \
 		.tx_buf_n = ETH_LITEX_SLOT_TX_N(n),                                                \
                                                                                                    \
 	};                                                                                         \
                                                                                                    \
 	ETH_NET_DEVICE_DT_INST_DEFINE(n, eth_initialize, NULL, &eth_data##n, &eth_config##n,       \
 				      CONFIG_ETH_INIT_PRIORITY, &eth_api, NET_ETH_MTU);

 DT_INST_FOREACH_STATUS_OKAY(ETH_LITEX_INIT);
	/*
	* Copyright (c) 2019 Antmicro <www.antmicro.com>
	* Copyright (c) 2024 Vogl Electronic GmbH
	*
	* SPDX-License-Identifier: Apache-2.0
	*/

	#define DT_DRV_COMPAT litex_liteeth

	#define LOG_MODULE_NAME eth_litex_liteeth
	#define LOG_LEVEL CONFIG_ETHERNET_LOG_LEVEL

	#include <zephyr/logging/log.h>
	LOG_MODULE_REGISTER(LOG_MODULE_NAME);

	#include <zephyr/kernel.h>
	#include <zephyr/device.h>
	#include <soc.h>
	#include <stdbool.h>
	#include <zephyr/net/ethernet.h>
	#include <zephyr/net/net_if.h>
	#include <zephyr/net/net_pkt.h>
	#include <zephyr/net/phy.h>

	#include <zephyr/sys/printk.h>
	#include <zephyr/irq.h>

	#include "eth.h"

	#define MAX_TX_FAILURE K_MSEC(100)

	#define ETH_LITEX_SLOT_SIZE 0x0800

	struct eth_litex_dev_data {
	struct net_if *iface;
	uint8_t mac_addr[6];
	uint8_t txslot;
	struct k_mutex tx_mutex;
	struct k_sem sem_tx_ready;
	};

	struct eth_litex_config {
	const struct device *phy_dev;
	void (config_func)(const struct device dev);
	bool random_mac_address;
	uint32_t rx_slot_addr;
	uint32_t rx_length_addr;
	uint32_t rx_ev_pending_addr;
	uint32_t rx_ev_enable_addr;
	uint32_t tx_start_addr;
	uint32_t tx_ready_addr;
	uint32_t tx_slot_addr;
	uint32_t tx_length_addr;
	uint32_t tx_ev_pending_addr;
	uint32_t tx_ev_enable_addr;
	uint32_t tx_buf_addr;
	uint32_t rx_buf_addr;
	uint8_t tx_buf_n;
	uint8_t rx_buf_n;
	};

	static int eth_initialize(const struct device *dev)
	{
	const struct eth_litex_config *config = dev->config;
	struct eth_litex_dev_data *context = dev->data;

	k_mutex_init(&context->tx_mutex);
	k_sem_init(&context->sem_tx_ready, 1, 1);

	config->config_func(dev);

	if (config->random_mac_address) {
	/* generate random MAC address */
	gen_random_mac(context->mac_addr, 0x10, 0xe2, 0xd5);
	}

	return 0;
	}

	static int eth_tx(const struct device dev, struct net_pkt pkt)
	{
	uint16_t len;
	struct eth_litex_dev_data *context = dev->data;
	const struct eth_litex_config *config = dev->config;
	int ret;

	k_mutex_lock(&context->tx_mutex, K_FOREVER);

	/* get data from packet and send it */
	len = net_pkt_get_len(pkt);
	net_pkt_read(pkt,
	UINT_TO_POINTER(config->tx_buf_addr + (context->txslot * ETH_LITEX_SLOT_SIZE)),
	len);

	litex_write8(context->txslot, config->tx_slot_addr);
	litex_write16(len, config->tx_length_addr);

	/* wait for the device to be ready to transmit */
	ret = k_sem_take(&context->sem_tx_ready, MAX_TX_FAILURE);
	if (ret < 0) {
	goto error;
	};
	/* start transmitting */
	litex_write8(1, config->tx_start_addr);

	/* change slot */
	context->txslot = (context->txslot + 1) % config->tx_buf_n;

	k_mutex_unlock(&context->tx_mutex);

	return 0;
	error:
	k_mutex_unlock(&context->tx_mutex);
	LOG_ERR("TX fifo failed");
	return -EIO;
	}

	static void eth_rx(const struct device *port)
	{
	struct net_pkt *pkt;
	struct eth_litex_dev_data *context = port->data;
	const struct eth_litex_config *config = port->config;

	int r;
	uint16_t len = 0;
	uint8_t rxslot = 0;

	if (!net_if_flag_is_set(context->iface, NET_IF_UP)) {
	return;
	}

	/* get frame's length */
	len = litex_read16(config->rx_length_addr);

	/* which slot is the frame in */
	rxslot = litex_read8(config->rx_slot_addr);

	/* obtain rx buffer */
	pkt = net_pkt_rx_alloc_with_buffer(context->iface, len, AF_UNSPEC, 0,
	K_NO_WAIT);
	if (pkt == NULL) {
	LOG_ERR("Failed to obtain RX buffer of length %u", len);
	return;
	}

	/* copy data to buffer */
	if (net_pkt_write(pkt,
	UINT_TO_POINTER(config->rx_buf_addr + (rxslot * ETH_LITEX_SLOT_SIZE)),
	len) != 0) {
	LOG_ERR("Failed to append RX buffer to context buffer");
	net_pkt_unref(pkt);
	return;
	}

	/* receive data */
	r = net_recv_data(context->iface, pkt);
	if (r < 0) {
	LOG_ERR("Failed to enqueue frame into RX queue: %d", r);
	net_pkt_unref(pkt);
	}
	}

	static void eth_irq_handler(const struct device *port)
	{
	struct eth_litex_dev_data *context = port->data;
	const struct eth_litex_config *config = port->config;
	/* check sram reader events (tx) */
	if (litex_read8(config->tx_ev_pending_addr) & BIT(0)) {
	k_sem_give(&context->sem_tx_ready);

	/* ack reader irq */
	litex_write8(BIT(0), config->tx_ev_pending_addr);
	}

	/* check sram writer events (rx) */
	if (litex_read8(config->rx_ev_pending_addr) & BIT(0)) {
	eth_rx(port);

	/* ack writer irq */
	litex_write8(BIT(0), config->rx_ev_pending_addr);
	}
	}

	static int eth_set_config(const struct device *dev, enum ethernet_config_type type,
	const struct ethernet_config *config)
	{
	struct eth_litex_dev_data *context = dev->data;
	int ret = -ENOTSUP;

	switch (type) {
	case ETHERNET_CONFIG_TYPE_MAC_ADDRESS:
	memcpy(context->mac_addr, config->mac_address.addr, sizeof(context->mac_addr));
	ret = net_if_set_link_addr(context->iface, context->mac_addr,
	sizeof(context->mac_addr), NET_LINK_ETHERNET);
	break;
	default:
	break;
	}

	return ret;
	}

	static int eth_start(const struct device *dev)
	{
	struct eth_litex_dev_data *context = dev->data;
	const struct eth_litex_config *config = dev->config;

	if (litex_read8(config->tx_ready_addr)) {
	k_sem_give(&context->sem_tx_ready);
	}

	litex_write8(1, config->tx_ev_enable_addr);
	litex_write8(1, config->rx_ev_enable_addr);

	litex_write8(BIT(0), config->tx_ev_pending_addr);
	litex_write8(BIT(0), config->rx_ev_pending_addr);

	return 0;
	}

	static int eth_stop(const struct device *dev)
	{
	const struct eth_litex_config *config = dev->config;

	litex_write8(0, config->tx_ev_enable_addr);
	litex_write8(0, config->rx_ev_enable_addr);

	return 0;
	}

	static const struct device eth_get_phy(const struct device dev)
	{
	const struct eth_litex_config *config = dev->config;

	return config->phy_dev;
	}

	static void phy_link_state_changed(const struct device *phy_dev,
	struct phy_link_state *state,
	void *user_data)
	{
	const struct device dev = (const struct device )user_data;
	struct eth_litex_dev_data *context = dev->data;

	ARG_UNUSED(phy_dev);

	if (state->is_up) {
	net_eth_carrier_on(context->iface);
	} else {
	net_eth_carrier_off(context->iface);
	}
	}

	static void eth_iface_init(struct net_if *iface)
	{
	const struct device *port = net_if_get_device(iface);
	const struct eth_litex_config *config = port->config;
	struct eth_litex_dev_data *context = port->data;

	/* set interface */
	if (context->iface == NULL) {
	context->iface = iface;
	}

	/* initialize ethernet L2 */
	ethernet_init(iface);

	/* set MAC address */
	if (net_if_set_link_addr(iface, context->mac_addr, sizeof(context->mac_addr),
	NET_LINK_ETHERNET) < 0) {
	LOG_ERR("setting mac failed");
	return;
	}

	if (config->phy_dev == NULL) {
	LOG_WRN("No PHY device");
	return;
	}

	net_if_carrier_off(iface);

	if (device_is_ready(config->phy_dev)) {
	phy_link_callback_set(config->phy_dev, phy_link_state_changed, (void *)port);
	} else {
	LOG_ERR("PHY device not ready");
	}
	}

	static enum ethernet_hw_caps eth_caps(const struct device *dev)
	{
	ARG_UNUSED(dev);

	return
	#ifdef CONFIG_NET_VLAN
	ETHERNET_HW_VLAN \|
	#endif
	ETHERNET_LINK_10BASE \| ETHERNET_LINK_100BASE \| ETHERNET_LINK_1000BASE;
	}

	static const struct ethernet_api eth_api = {
	.iface_api.init = eth_iface_init,
	.start = eth_start,
	.stop = eth_stop,
	.get_capabilities = eth_caps,
	.set_config = eth_set_config,
	.get_phy = eth_get_phy,
	.send = eth_tx
	};

	#define ETH_LITEX_SLOT_RX_ADDR(n) \
	DT_INST_REG_ADDR_BY_NAME_OR(n, rx_buffers, (DT_INST_REG_ADDR_BY_NAME(n, buffers)))
	#define ETH_LITEX_SLOT_TX_ADDR(n) \
	DT_INST_REG_ADDR_BY_NAME_OR(n, tx_buffers, \
	(DT_INST_REG_ADDR_BY_NAME(n, buffers) + \
	(DT_INST_REG_SIZE_BY_NAME(n, buffers) / 2)))
	#define ETH_LITEX_SLOT_RX_N(n) \
	(DT_INST_REG_SIZE_BY_NAME_OR(n, rx_buffers, (DT_INST_REG_SIZE_BY_NAME(n, buffers) / 2)) / \
	ETH_LITEX_SLOT_SIZE)
	#define ETH_LITEX_SLOT_TX_N(n) \
	(DT_INST_REG_SIZE_BY_NAME_OR(n, tx_buffers, (DT_INST_REG_SIZE_BY_NAME(n, buffers) / 2)) / \
	ETH_LITEX_SLOT_SIZE)

	#define ETH_LITEX_INIT(n) \
	\
	static void eth_irq_config##n(const struct device *dev) \
	{ \
	IRQ_CONNECT(DT_INST_IRQN(n), DT_INST_IRQ(n, priority), eth_irq_handler, \
	DEVICE_DT_INST_GET(n), 0); \
	\
	irq_enable(DT_INST_IRQN(n)); \
	} \
	\
	static struct eth_litex_dev_data eth_data##n = { \
	.mac_addr = DT_INST_PROP_OR(n, local_mac_address, {0}), \
	}; \
	\
	static const struct eth_litex_config eth_config##n = { \
	.phy_dev = DEVICE_DT_GET_OR_NULL(DT_INST_PHANDLE(n, phy_handle)), \
	.config_func = eth_irq_config##n, \
	.random_mac_address = DT_INST_PROP(n, zephyr_random_mac_address), \
	.rx_slot_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_slot), \
	.rx_length_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_length), \
	.rx_ev_pending_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_ev_pending), \
	.rx_ev_enable_addr = DT_INST_REG_ADDR_BY_NAME(n, rx_ev_enable), \
	.tx_start_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_start), \
	.tx_ready_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_ready), \
	.tx_slot_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_slot), \
	.tx_length_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_length), \
	.tx_ev_pending_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_ev_pending), \
	.tx_ev_enable_addr = DT_INST_REG_ADDR_BY_NAME(n, tx_ev_enable), \
	.rx_buf_addr = ETH_LITEX_SLOT_RX_ADDR(n), \
	.tx_buf_addr = ETH_LITEX_SLOT_TX_ADDR(n), \
	.rx_buf_n = ETH_LITEX_SLOT_RX_N(n), \
	.tx_buf_n = ETH_LITEX_SLOT_TX_N(n), \
	\
	}; \
	\
	ETH_NET_DEVICE_DT_INST_DEFINE(n, eth_initialize, NULL, &eth_data##n, &eth_config##n, \
	CONFIG_ETH_INIT_PRIORITY, &eth_api, NET_ETH_MTU);

	DT_INST_FOREACH_STATUS_OKAY(ETH_LITEX_INIT);