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 <[email protected]>
   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-3.50a"},
  75         { .compatible = "snps,dwmac-3.610"},
  76         { .compatible = "snps,dwmac-3.70a"},
  77         { .compatible = "snps,dwmac-3.710"},
  78         { .compatible = "snps,dwmac-4.00"},
  79         { .compatible = "snps,dwmac-4.10a"},
  80         { .compatible = "snps,dwmac"},
  81         { .compatible = "snps,dwxgmac-2.10"},
  82         { .compatible = "snps,dwxgmac"},
  83         { }
  84 };
  85 MODULE_DEVICE_TABLE(of, dwmac_generic_match);
  86
  87 static struct platform_driver dwmac_generic_driver = {
  88         .probe  = dwmac_generic_probe,
  89         .remove = stmmac_pltfr_remove,
  90         .driver = {
  91                 .name           = STMMAC_RESOURCE_NAME,
  92                 .pm             = &stmmac_pltfr_pm_ops,
  93                 .of_match_table = of_match_ptr(dwmac_generic_match),
  94         },
  95 };
  96 module_platform_driver(dwmac_generic_driver);
  97
  98 MODULE_DESCRIPTION("Generic dwmac driver");
  99 MODULE_LICENSE("GPL v2");