1 // SPDX-License-Identifier: GPL-2.0+
3  * Microchip's LAN865x 10BASE-T1S MAC-PHY driver
58 	ret = lan865x_set_hw_macaddr_low_bytes(priv->tc6, mac);  in lan865x_set_hw_macaddr()
64 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_H_SADDR1,  in lan865x_set_hw_macaddr()
72 	restore_ret = lan865x_set_hw_macaddr_low_bytes(priv->tc6,  in lan865x_set_hw_macaddr()
73 						       priv->netdev->dev_addr);  in lan865x_set_hw_macaddr()
95 	if (ether_addr_equal(address->sa_data, netdev->dev_addr))  in lan865x_set_mac_address()
98 	ret = lan865x_set_hw_macaddr(priv, address->sa_data);  in lan865x_set_mac_address()
135 	netdev_for_each_mc_addr(ha, priv->netdev) {  in lan865x_set_specific_multicast_addr()
136 		u32 bit_num = lan865x_hash(ha->addr);  in lan865x_set_specific_multicast_addr()
139 			hash_hi |= (1 << (bit_num - BIT(5)));  in lan865x_set_specific_multicast_addr()
145 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_H_HASH, hash_hi);  in lan865x_set_specific_multicast_addr()
147 		netdev_err(priv->netdev, "Failed to write reg_hashh: %d\n",  in lan865x_set_specific_multicast_addr()
152 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_L_HASH, hash_lo);  in lan865x_set_specific_multicast_addr()
154 		netdev_err(priv->netdev, "Failed to write reg_hashl: %d\n",  in lan865x_set_specific_multicast_addr()
165 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_H_HASH,  in lan865x_set_all_multicast_addr()
168 		netdev_err(priv->netdev, "Failed to write reg_hashh: %d\n",  in lan865x_set_all_multicast_addr()
173 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_L_HASH,  in lan865x_set_all_multicast_addr()
176 		netdev_err(priv->netdev, "Failed to write reg_hashl: %d\n",  in lan865x_set_all_multicast_addr()
186 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_H_HASH, 0);  in lan865x_clear_all_multicast_addr()
188 		netdev_err(priv->netdev, "Failed to write reg_hashh: %d\n",  in lan865x_clear_all_multicast_addr()
193 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_L_HASH, 0);  in lan865x_clear_all_multicast_addr()
195 		netdev_err(priv->netdev, "Failed to write reg_hashl: %d\n",  in lan865x_clear_all_multicast_addr()
208 	if (priv->netdev->flags & IFF_PROMISC) {  in lan865x_multicast_work_handler()
213 	} else if (priv->netdev->flags & IFF_ALLMULTI) {  in lan865x_multicast_work_handler()
221 	} else if (!netdev_mc_empty(priv->netdev)) {  in lan865x_multicast_work_handler()
234 	ret = oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_NET_CFG, regval);  in lan865x_multicast_work_handler()
236 		netdev_err(priv->netdev, "Failed to enable promiscuous/multicast/normal mode: %d\n",  in lan865x_multicast_work_handler()
244 	schedule_work(&priv->multicast_work);  in lan865x_set_multicast_list()
252 	return oa_tc6_start_xmit(priv->tc6, skb);  in lan865x_send_packet()
259 	if (oa_tc6_read_register(priv->tc6, LAN865X_REG_MAC_NET_CTL, &regval))  in lan865x_hw_disable()
260 		return -ENODEV;  in lan865x_hw_disable()
264 	if (oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_NET_CTL, regval))  in lan865x_hw_disable()
265 		return -ENODEV;  in lan865x_hw_disable()
276 	phy_stop(netdev->phydev);  in lan865x_net_close()
290 	if (oa_tc6_read_register(priv->tc6, LAN865X_REG_MAC_NET_CTL, &regval))  in lan865x_hw_enable()
291 		return -ENODEV;  in lan865x_hw_enable()
295 	if (oa_tc6_write_register(priv->tc6, LAN865X_REG_MAC_NET_CTL, regval))  in lan865x_hw_enable()
296 		return -ENODEV;  in lan865x_hw_enable()
312 	phy_start(netdev->phydev);  in lan865x_net_open()
333 		return -ENOMEM;  in lan865x_probe()
336 	priv->netdev = netdev;  in lan865x_probe()
337 	priv->spi = spi;  in lan865x_probe()
339 	INIT_WORK(&priv->multicast_work, lan865x_multicast_work_handler);  in lan865x_probe()
341 	priv->tc6 = oa_tc6_init(spi, netdev);  in lan865x_probe()
342 	if (!priv->tc6) {  in lan865x_probe()
343 		ret = -ENODEV;  in lan865x_probe()
350 	 * configured to 01b or 10b for proper operation. In these modes, only  in lan865x_probe()
357 …chip.com/downloads/aemDocuments/documents/AIS/ProductDocuments/Errata/LAN8650-1-Errata-80001075.pdf  in lan865x_probe()
359 	ret = oa_tc6_zero_align_receive_frame_enable(priv->tc6);  in lan865x_probe()
361 		dev_err(&spi->dev, "Failed to set ZARFE: %d\n", ret);  in lan865x_probe()
366 	if (device_get_ethdev_address(&spi->dev, netdev))  in lan865x_probe()
369 	ret = lan865x_set_hw_macaddr(priv, netdev->dev_addr);  in lan865x_probe()
371 		dev_err(&spi->dev, "Failed to configure MAC: %d\n", ret);  in lan865x_probe()
375 	netdev->if_port = IF_PORT_10BASET;  in lan865x_probe()
376 	netdev->irq = spi->irq;  in lan865x_probe()
377 	netdev->netdev_ops = &lan865x_netdev_ops;  in lan865x_probe()
378 	netdev->ethtool_ops = &lan865x_ethtool_ops;  in lan865x_probe()
382 		dev_err(&spi->dev, "Register netdev failed (ret = %d)", ret);  in lan865x_probe()
389 	oa_tc6_exit(priv->tc6);  in lan865x_probe()
391 	free_netdev(priv->netdev);  in lan865x_probe()
399 	cancel_work_sync(&priv->multicast_work);  in lan865x_remove()
400 	unregister_netdev(priv->netdev);  in lan865x_remove()
401 	oa_tc6_exit(priv->tc6);  in lan865x_remove()
402 	free_netdev(priv->netdev);  in lan865x_remove()
427 MODULE_DESCRIPTION(DRV_NAME " 10Base-T1S MACPHY Ethernet Driver");