1 /*
2  * Generic DWMAC platform driver
3  *
4  * Copyright (C) 2007-2011  STMicroelectronics Ltd
5  * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
6  *
7  * This file is licensed under the terms of the GNU General Public
8  * License version 2. This program is licensed "as is" without any
9  * warranty of any kind, whether express or implied.
10  */
11 
12 #include <linux/module.h>
13 #include <linux/of.h>
14 #include <linux/platform_device.h>
15 
16 #include "stmmac.h"
17 #include "stmmac_platform.h"
18 
19 static int dwmac_generic_probe(struct platform_device *pdev)
20 {
21 	struct plat_stmmacenet_data *plat_dat;
22 	struct stmmac_resources stmmac_res;
23 	int ret;
24 
25 	ret = stmmac_get_platform_resources(pdev, &stmmac_res);
26 	if (ret)
27 		return ret;
28 
29 	if (pdev->dev.of_node) {
30 		plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);
31 		if (IS_ERR(plat_dat)) {
32 			dev_err(&pdev->dev, "dt configuration failed\n");
33 			return PTR_ERR(plat_dat);
34 		}
35 	} else {
36 		plat_dat = dev_get_platdata(&pdev->dev);
37 		if (!plat_dat) {
38 			dev_err(&pdev->dev, "no platform data provided\n");
39 			return  -EINVAL;
40 		}
41 
42 		/* Set default value for multicast hash bins */
43 		plat_dat->multicast_filter_bins = HASH_TABLE_SIZE;
44 
45 		/* Set default value for unicast filter entries */
46 		plat_dat->unicast_filter_entries = 1;
47 	}
48 
49 	/* Custom initialisation (if needed) */
50 	if (plat_dat->init) {
51 		ret = plat_dat->init(pdev, plat_dat->bsp_priv);
52 		if (ret)
53 			return ret;
54 	}
55 
56 	return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
57 }
58 
59 static const struct of_device_id dwmac_generic_match[] = {
60 	{ .compatible = "st,spear600-gmac"},
61 	{ .compatible = "snps,dwmac-3.610"},
62 	{ .compatible = "snps,dwmac-3.70a"},
63 	{ .compatible = "snps,dwmac-3.710"},
64 	{ .compatible = "snps,dwmac"},
65 	{ }
66 };
67 MODULE_DEVICE_TABLE(of, dwmac_generic_match);
68 
69 static struct platform_driver dwmac_generic_driver = {
70 	.probe  = dwmac_generic_probe,
71 	.remove = stmmac_pltfr_remove,
72 	.driver = {
73 		.name           = STMMAC_RESOURCE_NAME,
74 		.pm		= &stmmac_pltfr_pm_ops,
75 		.of_match_table = of_match_ptr(dwmac_generic_match),
76 	},
77 };
78 module_platform_driver(dwmac_generic_driver);
79 
80 MODULE_DESCRIPTION("Generic dwmac driver");
81 MODULE_LICENSE("GPL v2");
82