LXR linux/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
  19static 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
  62err_exit:
  63        if (plat_dat->exit)
  64                plat_dat->exit(pdev, plat_dat->bsp_priv);
  65err_remove_config_dt:
  66        if (pdev->dev.of_node)
  67                stmmac_remove_config_dt(pdev, plat_dat);
  68
  69        return ret;
  70}
  71
  72static 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};
  85MODULE_DEVICE_TABLE(of, dwmac_generic_match);
  86
  87static 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};
  96module_platform_driver(dwmac_generic_driver);
  97
  98MODULE_DESCRIPTION("Generic dwmac driver");
  99MODULE_LICENSE("GPL v2");
 100