4  * SPDX-License-Identifier: Apache-2.0
41 	uint32_t val = base->MAC_MDIO_ADDRESS;  in check_busy()
47 static int do_transaction(struct mdio_transaction *mdio)  in do_transaction()
49 	enet_qos_t *base = mdio->base;  in do_transaction()
51 	int ret;  in do_transaction()
53 	k_mutex_lock(mdio->mdio_bus_mutex, K_FOREVER);  in do_transaction()
55 	if (mdio->op == MDIO_OP_C22_WRITE) {  in do_transaction()
56 		base->MAC_MDIO_DATA =  in do_transaction()
58 			ENET_QOS_REG_PREP(MAC_MDIO_DATA, GD, mdio->write_data);  in do_transaction()
60 	} else if (mdio->op == MDIO_OP_C22_READ) {  in do_transaction()
63 		ret = -EINVAL;  in do_transaction()
67 	base->MAC_MDIO_ADDRESS =  in do_transaction()
72 		ENET_QOS_REG_PREP(MAC_MDIO_ADDRESS, PA, mdio->portaddr) |  in do_transaction()
74 		ENET_QOS_REG_PREP(MAC_MDIO_ADDRESS, RDA, mdio->regaddr);  in do_transaction()
76 	base->MAC_MDIO_ADDRESS =  in do_transaction()
81 	ret = -ETIMEDOUT;  in do_transaction()
82 	for (int i = CONFIG_MDIO_NXP_ENET_QOS_RECHECK_COUNT; i > 0; i--) {  in do_transaction()
95 	if (mdio->op == MDIO_OP_C22_READ) {  in do_transaction()
96 		uint32_t val = mdio->base->MAC_MDIO_DATA;  in do_transaction()
98 		*mdio->read_data =  in do_transaction()
104 	k_mutex_unlock(mdio->mdio_bus_mutex);  in do_transaction()
109 static int nxp_enet_qos_mdio_read(const struct device *dev,  in nxp_enet_qos_mdio_read()
113 	const struct nxp_enet_qos_mdio_config *config = dev->config;  in nxp_enet_qos_mdio_read()
114 	struct nxp_enet_qos_mdio_data *data = dev->data;  in nxp_enet_qos_mdio_read()
115 	enet_qos_t *base = ENET_QOS_MODULE_CFG(config->enet_dev)->base;  in nxp_enet_qos_mdio_read()
122 		.mdio_bus_mutex = &data->mdio_mutex,  in nxp_enet_qos_mdio_read()
128 static int nxp_enet_qos_mdio_write(const struct device *dev,  in nxp_enet_qos_mdio_write()
132 	const struct nxp_enet_qos_mdio_config *config = dev->config;  in nxp_enet_qos_mdio_write()
133 	struct nxp_enet_qos_mdio_data *data = dev->data;  in nxp_enet_qos_mdio_write()
134 	enet_qos_t *base = ENET_QOS_MODULE_CFG(config->enet_dev)->base;  in nxp_enet_qos_mdio_write()
141 		.mdio_bus_mutex = &data->mdio_mutex,  in nxp_enet_qos_mdio_write()
152 static int nxp_enet_qos_mdio_init(const struct device *dev)  in nxp_enet_qos_mdio_init()
154 	const struct nxp_enet_qos_mdio_config *mdio_config = dev->config;  in nxp_enet_qos_mdio_init()
155 	struct nxp_enet_qos_mdio_data *data = dev->data;  in nxp_enet_qos_mdio_init()
156 	const struct nxp_enet_qos_config *config = ENET_QOS_MODULE_CFG(mdio_config->enet_dev);  in nxp_enet_qos_mdio_init()
158 	int ret, divider;  in nxp_enet_qos_mdio_init()  local
160 	ret = k_mutex_init(&data->mdio_mutex);  in nxp_enet_qos_mdio_init()
165 	ret = clock_control_get_rate(config->clock_dev, config->clock_subsys,  in nxp_enet_qos_mdio_init()
173 		divider = 2;  in nxp_enet_qos_mdio_init()
175 		divider = 3;  in nxp_enet_qos_mdio_init()
177 		divider = 0;  in nxp_enet_qos_mdio_init()
179 		divider = 1;  in nxp_enet_qos_mdio_init()
181 		divider = 4;  in nxp_enet_qos_mdio_init()
184 		return -ENOTSUP;  in nxp_enet_qos_mdio_init()
187 	config->base->MAC_MDIO_ADDRESS =  in nxp_enet_qos_mdio_init()
188 		/* Configure the MDIO clock range / divider */  in nxp_enet_qos_mdio_init()
189 		ENET_QOS_REG_PREP(MAC_MDIO_ADDRESS, CR, divider);  in nxp_enet_qos_mdio_init()