stmicro/stmmac/dwmac-generic.c

0001 /*
0002  * Generic DWMAC platform driver
0003  *
0004  * Copyright (C) 2007-2011  STMicroelectronics Ltd
0005  * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
0006  *
0007  * This file is licensed under the terms of the GNU General Public
0008  * License version 2. This program is licensed "as is" without any
0009  * warranty of any kind, whether express or implied.
0010  */
0011
0012 #include <linux/module.h>
0013 #include <linux/of.h>
0014 #include <linux/platform_device.h>
0015
0016 #include "stmmac.h"
0017 #include "stmmac_platform.h"
0018
0019 static int dwmac_generic_probe(struct platform_device *pdev)
0020 {
0021     struct plat_stmmacenet_data *plat_dat;
0022     struct stmmac_resources stmmac_res;
0023     int ret;
0024
0025     ret = stmmac_get_platform_resources(pdev, &stmmac_res);
0026     if (ret)
0027         return ret;
0028
0029     if (pdev->dev.of_node) {
0030         plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
0031         if (IS_ERR(plat_dat)) {
0032             dev_err(&pdev->dev, "dt configuration failed\n");
0033             return PTR_ERR(plat_dat);
0034         }
0035     } else {
0036         plat_dat = dev_get_platdata(&pdev->dev);
0037         if (!plat_dat) {
0038             dev_err(&pdev->dev, "no platform data provided\n");
0039             return  -EINVAL;
0040         }
0041
0042         /* Set default value for multicast hash bins */
0043         plat_dat->multicast_filter_bins = HASH_TABLE_SIZE;
0044
0045         /* Set default value for unicast filter entries */
0046         plat_dat->unicast_filter_entries = 1;
0047     }
0048
0049     /* Custom initialisation (if needed) */
0050     if (plat_dat->init) {
0051         ret = plat_dat->init(pdev, plat_dat->bsp_priv);
0052         if (ret)
0053             goto err_remove_config_dt;
0054     }
0055
0056     ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
0057     if (ret)
0058         goto err_exit;
0059
0060     return 0;
0061
0062 err_exit:
0063     if (plat_dat->exit)
0064         plat_dat->exit(pdev, plat_dat->bsp_priv);
0065 err_remove_config_dt:
0066     if (pdev->dev.of_node)
0067         stmmac_remove_config_dt(pdev, plat_dat);
0068
0069     return ret;
0070 }
0071
0072 static const struct of_device_id dwmac_generic_match[] = {
0073     { .compatible = "st,spear600-gmac"},
0074     { .compatible = "snps,dwmac-3.40a"},
0075     { .compatible = "snps,dwmac-3.50a"},
0076     { .compatible = "snps,dwmac-3.610"},
0077     { .compatible = "snps,dwmac-3.70a"},
0078     { .compatible = "snps,dwmac-3.710"},
0079     { .compatible = "snps,dwmac-4.00"},
0080     { .compatible = "snps,dwmac-4.10a"},
0081     { .compatible = "snps,dwmac"},
0082     { .compatible = "snps,dwxgmac-2.10"},
0083     { .compatible = "snps,dwxgmac"},
0084     { }
0085 };
0086 MODULE_DEVICE_TABLE(of, dwmac_generic_match);
0087
0088 static struct platform_driver dwmac_generic_driver = {
0089     .probe  = dwmac_generic_probe,
0090     .remove = stmmac_pltfr_remove,
0091     .driver = {
0092         .name           = STMMAC_RESOURCE_NAME,
0093         .pm     = &stmmac_pltfr_pm_ops,
0094         .of_match_table = of_match_ptr(dwmac_generic_match),
0095     },
0096 };
0097 module_platform_driver(dwmac_generic_driver);
0098
0099 MODULE_DESCRIPTION("Generic dwmac driver");
0100 MODULE_LICENSE("GPL v2");