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543009e2d4
Adds device id of the ethernet controller on the Sophgo SG2042 SoC. Signed-off-by: Inochi Amaoto <inochiama@gmail.com> Tested-by: Han Gao <rabenda.cn@gmail.com> Link: https://patch.msgid.link/20250708064052.507094-3-inochiama@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Sophgo DWMAC platform driver
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*
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* Copyright (C) 2024 Inochi Amaoto <inochiama@gmail.com>
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*/
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#include <linux/clk.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/platform_device.h>
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#include "stmmac_platform.h"
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static int sophgo_sg2044_dwmac_init(struct platform_device *pdev,
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struct plat_stmmacenet_data *plat_dat,
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struct stmmac_resources *stmmac_res)
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{
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plat_dat->clk_tx_i = devm_clk_get_enabled(&pdev->dev, "tx");
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if (IS_ERR(plat_dat->clk_tx_i))
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return dev_err_probe(&pdev->dev, PTR_ERR(plat_dat->clk_tx_i),
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"failed to get tx clock\n");
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plat_dat->flags |= STMMAC_FLAG_SPH_DISABLE;
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plat_dat->set_clk_tx_rate = stmmac_set_clk_tx_rate;
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plat_dat->multicast_filter_bins = 0;
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plat_dat->unicast_filter_entries = 1;
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return 0;
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}
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static int sophgo_dwmac_probe(struct platform_device *pdev)
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{
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struct plat_stmmacenet_data *plat_dat;
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struct stmmac_resources stmmac_res;
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struct device *dev = &pdev->dev;
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int ret;
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ret = stmmac_get_platform_resources(pdev, &stmmac_res);
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if (ret)
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return dev_err_probe(dev, ret,
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"failed to get platform resources\n");
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plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);
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if (IS_ERR(plat_dat))
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return dev_err_probe(dev, PTR_ERR(plat_dat),
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"failed to parse DT parameters\n");
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ret = sophgo_sg2044_dwmac_init(pdev, plat_dat, &stmmac_res);
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if (ret)
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return ret;
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return stmmac_dvr_probe(dev, plat_dat, &stmmac_res);
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}
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static const struct of_device_id sophgo_dwmac_match[] = {
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{ .compatible = "sophgo,sg2042-dwmac" },
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{ .compatible = "sophgo,sg2044-dwmac" },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, sophgo_dwmac_match);
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static struct platform_driver sophgo_dwmac_driver = {
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.probe = sophgo_dwmac_probe,
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.remove = stmmac_pltfr_remove,
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.driver = {
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.name = "sophgo-dwmac",
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.pm = &stmmac_pltfr_pm_ops,
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.of_match_table = sophgo_dwmac_match,
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},
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};
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module_platform_driver(sophgo_dwmac_driver);
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MODULE_AUTHOR("Inochi Amaoto <inochiama@gmail.com>");
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MODULE_DESCRIPTION("Sophgo DWMAC platform driver");
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MODULE_LICENSE("GPL");
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