1 // SPDX-License-Identifier: GPL-2.0
3  * dwmac-ingenic.c - Ingenic SoCs DWMAC specific glue layer
9 #include <linux/clk.h>
76 	struct ingenic_mac *mac = plat_dat->bsp_priv;  in ingenic_mac_init()  local
79 	if (mac->soc_info->set_mode) {  in ingenic_mac_init()
80 		ret = mac->soc_info->set_mode(plat_dat);  in ingenic_mac_init()
90 	struct ingenic_mac *mac = plat_dat->bsp_priv;  in jz4775_mac_set_mode()  local
93 	switch (plat_dat->interface) {  in jz4775_mac_set_mode()
97 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_MII\n");  in jz4775_mac_set_mode()
103 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_GMII\n");  in jz4775_mac_set_mode()
109 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RMII\n");  in jz4775_mac_set_mode()
118 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RGMII\n");  in jz4775_mac_set_mode()
122 		dev_err(mac->dev, "Unsupported interface %d", plat_dat->interface);  in jz4775_mac_set_mode()
123 		return -EINVAL;  in jz4775_mac_set_mode()
126 	/* Update MAC PHY control register */  in jz4775_mac_set_mode()
127 	return regmap_update_bits(mac->regmap, 0, mac->soc_info->mask, val);  in jz4775_mac_set_mode()
132 	struct ingenic_mac *mac = plat_dat->bsp_priv;  in x1000_mac_set_mode()  local
134 	switch (plat_dat->interface) {  in x1000_mac_set_mode()
136 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RMII\n");  in x1000_mac_set_mode()
140 		dev_err(mac->dev, "Unsupported interface %d", plat_dat->interface);  in x1000_mac_set_mode()
141 		return -EINVAL;  in x1000_mac_set_mode()
144 	/* Update MAC PHY control register */  in x1000_mac_set_mode()
145 	return regmap_update_bits(mac->regmap, 0, mac->soc_info->mask, 0);  in x1000_mac_set_mode()
150 	struct ingenic_mac *mac = plat_dat->bsp_priv;  in x1600_mac_set_mode()  local
153 	switch (plat_dat->interface) {  in x1600_mac_set_mode()
156 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RMII\n");  in x1600_mac_set_mode()
160 		dev_err(mac->dev, "Unsupported interface %d", plat_dat->interface);  in x1600_mac_set_mode()
161 		return -EINVAL;  in x1600_mac_set_mode()
164 	/* Update MAC PHY control register */  in x1600_mac_set_mode()
165 	return regmap_update_bits(mac->regmap, 0, mac->soc_info->mask, val);  in x1600_mac_set_mode()
170 	struct ingenic_mac *mac = plat_dat->bsp_priv;  in x1830_mac_set_mode()  local
173 	switch (plat_dat->interface) {  in x1830_mac_set_mode()
177 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RMII\n");  in x1830_mac_set_mode()
181 		dev_err(mac->dev, "Unsupported interface %d", plat_dat->interface);  in x1830_mac_set_mode()
182 		return -EINVAL;  in x1830_mac_set_mode()
185 	/* Update MAC PHY control register */  in x1830_mac_set_mode()
186 	return regmap_update_bits(mac->regmap, 0, mac->soc_info->mask, val);  in x1830_mac_set_mode()
191 	struct ingenic_mac *mac = plat_dat->bsp_priv;  in x2000_mac_set_mode()  local
194 	switch (plat_dat->interface) {  in x2000_mac_set_mode()
199 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RMII\n");  in x2000_mac_set_mode()
208 		if (mac->tx_delay == 0)  in x2000_mac_set_mode()
212 				   FIELD_PREP(MACPHYC_TX_DELAY_MASK, (mac->tx_delay + 9750) / 19500 - 1);  in x2000_mac_set_mode()
214 		if (mac->rx_delay == 0)  in x2000_mac_set_mode()
218 				   FIELD_PREP(MACPHYC_RX_DELAY_MASK, (mac->rx_delay + 9750) / 19500 - 1);  in x2000_mac_set_mode()
220 		dev_dbg(mac->dev, "MAC PHY Control Register: PHY_INTERFACE_MODE_RGMII\n");  in x2000_mac_set_mode()
224 		dev_err(mac->dev, "Unsupported interface %d", plat_dat->interface);  in x2000_mac_set_mode()
225 		return -EINVAL;  in x2000_mac_set_mode()
228 	/* Update MAC PHY control register */  in x2000_mac_set_mode()
229 	return regmap_update_bits(mac->regmap, 0, mac->soc_info->mask, val);  in x2000_mac_set_mode()
236 	struct ingenic_mac *mac;  in ingenic_mac_probe()  local
245 	plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);  in ingenic_mac_probe()
249 	mac = devm_kzalloc(&pdev->dev, sizeof(*mac), GFP_KERNEL);  in ingenic_mac_probe()
250 	if (!mac) {  in ingenic_mac_probe()
251 		ret = -ENOMEM;  in ingenic_mac_probe()
255 	data = of_device_get_match_data(&pdev->dev);  in ingenic_mac_probe()
257 		dev_err(&pdev->dev, "No of match data provided\n");  in ingenic_mac_probe()
258 		ret = -EINVAL;  in ingenic_mac_probe()
262 	/* Get MAC PHY control register */  in ingenic_mac_probe()
263 	mac->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "mode-reg");  in ingenic_mac_probe()
264 	if (IS_ERR(mac->regmap)) {  in ingenic_mac_probe()
265 		dev_err(&pdev->dev, "%s: Failed to get syscon regmap\n", __func__);  in ingenic_mac_probe()
266 		ret = PTR_ERR(mac->regmap);  in ingenic_mac_probe()
270 	if (!of_property_read_u32(pdev->dev.of_node, "tx-clk-delay-ps", &tx_delay_ps)) {  in ingenic_mac_probe()
273 			mac->tx_delay = tx_delay_ps * 1000;  in ingenic_mac_probe()
275 			dev_err(&pdev->dev, "Invalid TX clock delay: %dps\n", tx_delay_ps);  in ingenic_mac_probe()
276 			ret = -EINVAL;  in ingenic_mac_probe()
281 	if (!of_property_read_u32(pdev->dev.of_node, "rx-clk-delay-ps", &rx_delay_ps)) {  in ingenic_mac_probe()
284 			mac->rx_delay = rx_delay_ps * 1000;  in ingenic_mac_probe()
286 			dev_err(&pdev->dev, "Invalid RX clock delay: %dps\n", rx_delay_ps);  in ingenic_mac_probe()
287 			ret = -EINVAL;  in ingenic_mac_probe()
292 	mac->soc_info = data;  in ingenic_mac_probe()
293 	mac->dev = &pdev->dev;  in ingenic_mac_probe()
295 	plat_dat->bsp_priv = mac;  in ingenic_mac_probe()
301 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);  in ingenic_mac_probe()
329 	ret = ingenic_mac_init(priv->plat);  in ingenic_mac_resume()
378 	{ .compatible = "ingenic,jz4775-mac", .data = &jz4775_soc_info },
379 	{ .compatible = "ingenic,x1000-mac", .data = &x1000_soc_info },
380 	{ .compatible = "ingenic,x1600-mac", .data = &x1600_soc_info },
381 	{ .compatible = "ingenic,x1830-mac", .data = &x1830_soc_info },
382 	{ .compatible = "ingenic,x2000-mac", .data = &x2000_soc_info },
391 		.name	= "ingenic-mac",