Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[sfrench/cifs-2.6.git] / drivers / net / ethernet / stmicro / stmmac / dwmac-generic.c
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                         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-3.610"},
75         { .compatible = "snps,dwmac-3.70a"},
76         { .compatible = "snps,dwmac-3.710"},
77         { .compatible = "snps,dwmac"},
78         { }
79 };
80 MODULE_DEVICE_TABLE(of, dwmac_generic_match);
81
82 static struct platform_driver dwmac_generic_driver = {
83         .probe  = dwmac_generic_probe,
84         .remove = stmmac_pltfr_remove,
85         .driver = {
86                 .name           = STMMAC_RESOURCE_NAME,
87                 .pm             = &stmmac_pltfr_pm_ops,
88                 .of_match_table = of_match_ptr(dwmac_generic_match),
89         },
90 };
91 module_platform_driver(dwmac_generic_driver);
92
93 MODULE_DESCRIPTION("Generic dwmac driver");
94 MODULE_LICENSE("GPL v2");