1 // SPDX-License-Identifier: GPL-2.0
5 #include <linux/clk-provider.h>
12 #define DRIVER_NAME "dwmac-loongson-pci"
17 	plat->clk_csr = 2;	/* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */  in loongson_default_data()
18 	plat->has_gmac = 1;  in loongson_default_data()
19 	plat->force_sf_dma_mode = 1;  in loongson_default_data()
22 	plat->multicast_filter_bins = HASH_TABLE_SIZE;  in loongson_default_data()
25 	plat->unicast_filter_entries = 1;  in loongson_default_data()
28 	plat->maxmtu = JUMBO_LEN;  in loongson_default_data()
31 	plat->tx_queues_to_use = 1;  in loongson_default_data()
32 	plat->rx_queues_to_use = 1;  in loongson_default_data()
35 	plat->tx_queues_cfg[0].use_prio = false;  in loongson_default_data()
36 	plat->rx_queues_cfg[0].use_prio = false;  in loongson_default_data()
39 	plat->rx_queues_cfg[0].pkt_route = 0x0;  in loongson_default_data()
41 	plat->clk_ref_rate = 125000000;  in loongson_default_data()
42 	plat->clk_ptp_rate = 125000000;  in loongson_default_data()
44 	/* Default to phy auto-detection */  in loongson_default_data()
45 	plat->phy_addr = -1;  in loongson_default_data()
47 	plat->dma_cfg->pbl = 32;  in loongson_default_data()
48 	plat->dma_cfg->pblx8 = true;  in loongson_default_data()
50 	plat->multicast_filter_bins = 256;  in loongson_default_data()
61 	np = dev_of_node(&pdev->dev);  in loongson_dwmac_probe()
65 		return -ENODEV;  in loongson_dwmac_probe()
68 	plat = devm_kzalloc(&pdev->dev, sizeof(*plat), GFP_KERNEL);  in loongson_dwmac_probe()
70 		return -ENOMEM;  in loongson_dwmac_probe()
72 	plat->mdio_bus_data = devm_kzalloc(&pdev->dev,  in loongson_dwmac_probe()
73 					   sizeof(*plat->mdio_bus_data),  in loongson_dwmac_probe()
75 	if (!plat->mdio_bus_data)  in loongson_dwmac_probe()
76 		return -ENOMEM;  in loongson_dwmac_probe()
78 	plat->mdio_node = of_get_child_by_name(np, "mdio");  in loongson_dwmac_probe()
79 	if (plat->mdio_node) {  in loongson_dwmac_probe()
80 		dev_info(&pdev->dev, "Found MDIO subnode\n");  in loongson_dwmac_probe()
81 		plat->mdio_bus_data->needs_reset = true;  in loongson_dwmac_probe()
84 	plat->dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*plat->dma_cfg), GFP_KERNEL);  in loongson_dwmac_probe()
85 	if (!plat->dma_cfg) {  in loongson_dwmac_probe()
86 		ret = -ENOMEM;  in loongson_dwmac_probe()
93 		dev_err(&pdev->dev, "%s: ERROR: failed to enable device\n", __func__);  in loongson_dwmac_probe()
107 	plat->bus_id = of_alias_get_id(np, "ethernet");  in loongson_dwmac_probe()
108 	if (plat->bus_id < 0)  in loongson_dwmac_probe()
109 		plat->bus_id = pci_dev_id(pdev);  in loongson_dwmac_probe()
111 	phy_mode = device_get_phy_mode(&pdev->dev);  in loongson_dwmac_probe()
113 		dev_err(&pdev->dev, "phy_mode not found\n");  in loongson_dwmac_probe()
118 	plat->phy_interface = phy_mode;  in loongson_dwmac_probe()
119 	plat->mac_interface = PHY_INTERFACE_MODE_GMII;  in loongson_dwmac_probe()
130 		dev_err(&pdev->dev, "IRQ macirq not found\n");  in loongson_dwmac_probe()
131 		ret = -ENODEV;  in loongson_dwmac_probe()
137 		dev_info(&pdev->dev, "IRQ eth_wake_irq not found, using macirq\n");  in loongson_dwmac_probe()
143 		dev_err(&pdev->dev, "IRQ eth_lpi not found\n");  in loongson_dwmac_probe()
144 		ret = -ENODEV;  in loongson_dwmac_probe()
148 	ret = stmmac_dvr_probe(&pdev->dev, plat, &res);  in loongson_dwmac_probe()
159 	of_node_put(plat->mdio_node);  in loongson_dwmac_probe()
165 	struct net_device *ndev = dev_get_drvdata(&pdev->dev);  in loongson_dwmac_remove()
169 	of_node_put(priv->plat->mdio_node);  in loongson_dwmac_remove()
170 	stmmac_dvr_remove(&pdev->dev);  in loongson_dwmac_remove()
239 MODULE_DESCRIPTION("Loongson DWMAC PCI driver");