1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 3 * Copyright (C) 2024 Schneider-Electric 4 * 5 * Cl��ment L��ger <clement.leger@bootlin.com> 6 */ 7 8#include <linux/of.h> 9#include <linux/pcs-rzn1-miic.h> 10#include <linux/phylink.h> 11#include <linux/platform_device.h> 12 13#include "stmmac_platform.h" 14#include "stmmac.h" 15 16static int rzn1_dwmac_pcs_init(struct stmmac_priv *priv) 17{ 18 struct device_node *np = priv->device->of_node; 19 struct device_node *pcs_node; 20 struct phylink_pcs *pcs; 21 22 pcs_node = of_parse_phandle(np, "pcs-handle", 0); 23 24 if (pcs_node) { 25 pcs = miic_create(priv->device, pcs_node); 26 of_node_put(pcs_node); 27 if (IS_ERR(pcs)) 28 return PTR_ERR(pcs); 29 30 priv->hw->phylink_pcs = pcs; 31 } 32 33 return 0; 34} 35 36static void rzn1_dwmac_pcs_exit(struct stmmac_priv *priv) 37{ 38 if (priv->hw->phylink_pcs) 39 miic_destroy(priv->hw->phylink_pcs); 40} 41 42static int rzn1_dwmac_probe(struct platform_device *pdev) 43{ 44 struct plat_stmmacenet_data *plat_dat; 45 struct stmmac_resources stmmac_res; 46 struct device *dev = &pdev->dev; 47 int ret; 48 49 ret = stmmac_get_platform_resources(pdev, &stmmac_res); 50 if (ret) 51 return ret; 52 53 plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac); 54 if (IS_ERR(plat_dat)) 55 return PTR_ERR(plat_dat); 56 57 plat_dat->bsp_priv = plat_dat; 58 plat_dat->pcs_init = rzn1_dwmac_pcs_init; 59 plat_dat->pcs_exit = rzn1_dwmac_pcs_exit; 60 61 ret = stmmac_dvr_probe(dev, plat_dat, &stmmac_res); 62 if (ret) 63 return ret; 64 65 return 0; 66} 67 68static const struct of_device_id rzn1_dwmac_match[] = { 69 { .compatible = "renesas,rzn1-gmac" }, 70 { } 71}; 72MODULE_DEVICE_TABLE(of, rzn1_dwmac_match); 73 74static struct platform_driver rzn1_dwmac_driver = { 75 .probe = rzn1_dwmac_probe, 76 .remove_new = stmmac_pltfr_remove, 77 .driver = { 78 .name = "rzn1-dwmac", 79 .of_match_table = rzn1_dwmac_match, 80 }, 81}; 82module_platform_driver(rzn1_dwmac_driver); 83 84MODULE_AUTHOR("Cl��ment L��ger <clement.leger@bootlin.com>"); 85MODULE_DESCRIPTION("Renesas RZN1 DWMAC specific glue layer"); 86MODULE_LICENSE("GPL"); 87