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
dwmac_generic_probe(struct platform_device * pdev)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 goto err_remove_config_dt;
54 }
55
56 ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
57 if (ret)
58 goto err_exit;
59
60 return 0;
61
62 err_exit:
63 if (plat_dat->exit)
64 plat_dat->exit(pdev, plat_dat->bsp_priv);
65 err_remove_config_dt:
66 if (pdev->dev.of_node)
67 stmmac_remove_config_dt(pdev, plat_dat);
68
69 return ret;
70 }
71
72 static const struct of_device_id dwmac_generic_match[] = {
73 { .compatible = "st,spear600-gmac"},
74 { .compatible = "snps,dwmac-3.40a"},
75 { .compatible = "snps,dwmac-3.50a"},
76 { .compatible = "snps,dwmac-3.610"},
77 { .compatible = "snps,dwmac-3.70a"},
78 { .compatible = "snps,dwmac-3.710"},
79 { .compatible = "snps,dwmac-4.00"},
80 { .compatible = "snps,dwmac-4.10a"},
81 { .compatible = "snps,dwmac"},
82 { .compatible = "snps,dwxgmac-2.10"},
83 { .compatible = "snps,dwxgmac"},
84 { }
85 };
86 MODULE_DEVICE_TABLE(of, dwmac_generic_match);
87
88 static struct platform_driver dwmac_generic_driver = {
89 .probe = dwmac_generic_probe,
90 .remove = stmmac_pltfr_remove,
91 .driver = {
92 .name = STMMAC_RESOURCE_NAME,
93 .pm = &stmmac_pltfr_pm_ops,
94 .of_match_table = of_match_ptr(dwmac_generic_match),
95 },
96 };
97 module_platform_driver(dwmac_generic_driver);
98
99 MODULE_DESCRIPTION("Generic dwmac driver");
100 MODULE_LICENSE("GPL v2");
101