1 // SPDX-License-Identifier: GPL-2.0-or-later
20 #include <linux/reset.h>
63 	writel(val, phy->base + reg);  in u2_phy_w32()
68 	return readl(phy->base + reg);  in u2_phy_r32()
97 	regmap_update_bits(phy->sysctl, RT_SYSC_REG_CLKCFG1,  in ralink_usb_phy_power_on()
98 			   phy->clk, phy->clk);  in ralink_usb_phy_power_on()
101 	regmap_update_bits(phy->sysctl, RT_SYSC_REG_SYSCFG1,  in ralink_usb_phy_power_on()
105 	/* deassert the reset lines */  in ralink_usb_phy_power_on()
106 	reset_control_deassert(phy->rsthost);  in ralink_usb_phy_power_on()
107 	reset_control_deassert(phy->rstdev);  in ralink_usb_phy_power_on()
110 	 * The SDK kernel had a delay of 100ms. however on device  in ralink_usb_phy_power_on()
111 	 * testing showed that 10ms is enough  in ralink_usb_phy_power_on()
115 	if (phy->base)  in ralink_usb_phy_power_on()
119 	regmap_read(phy->sysctl, RT_SYSC_REG_USB_PHY_CFG, &t);  in ralink_usb_phy_power_on()
120 	dev_info(&phy->phy->dev, "remote usb device wakeup %s\n",  in ralink_usb_phy_power_on()
123 		dev_info(&phy->phy->dev, "UTMI 8bit 60MHz\n");  in ralink_usb_phy_power_on()
125 		dev_info(&phy->phy->dev, "UTMI 16bit 30MHz\n");  in ralink_usb_phy_power_on()
135 	regmap_update_bits(phy->sysctl, RT_SYSC_REG_CLKCFG1,  in ralink_usb_phy_power_off()
136 			   phy->clk, 0);  in ralink_usb_phy_power_off()
138 	/* assert the reset lines */  in ralink_usb_phy_power_off()
139 	reset_control_assert(phy->rstdev);  in ralink_usb_phy_power_off()
140 	reset_control_assert(phy->rsthost);  in ralink_usb_phy_power_off()
153 		.compatible = "ralink,rt3352-usbphy",
158 		.compatible = "mediatek,mt7620-usbphy",
163 		.compatible = "mediatek,mt7628-usbphy",
172 	struct device *dev = &pdev->dev;  in ralink_usb_phy_probe()
177 	match = of_match_device(ralink_usb_phy_of_match, &pdev->dev);  in ralink_usb_phy_probe()
179 		return -ENODEV;  in ralink_usb_phy_probe()
183 		return -ENOMEM;  in ralink_usb_phy_probe()
185 	phy->clk = (uintptr_t)match->data;  in ralink_usb_phy_probe()
186 	phy->base = NULL;  in ralink_usb_phy_probe()
188 	phy->sysctl = syscon_regmap_lookup_by_phandle(dev->of_node, "ralink,sysctl");  in ralink_usb_phy_probe()
189 	if (IS_ERR(phy->sysctl)) {  in ralink_usb_phy_probe()
191 		return PTR_ERR(phy->sysctl);  in ralink_usb_phy_probe()
195 	if (of_device_is_compatible(dev->of_node, "mediatek,mt7628-usbphy")) {  in ralink_usb_phy_probe()
196 		phy->base = devm_platform_ioremap_resource(pdev, 0);  in ralink_usb_phy_probe()
197 		if (IS_ERR(phy->base)) {  in ralink_usb_phy_probe()
199 			return PTR_ERR(phy->base);  in ralink_usb_phy_probe()
203 	phy->rsthost = devm_reset_control_get(&pdev->dev, "host");  in ralink_usb_phy_probe()
204 	if (IS_ERR(phy->rsthost)) {  in ralink_usb_phy_probe()
205 		dev_err(dev, "host reset is missing\n");  in ralink_usb_phy_probe()
206 		return PTR_ERR(phy->rsthost);  in ralink_usb_phy_probe()
209 	phy->rstdev = devm_reset_control_get(&pdev->dev, "device");  in ralink_usb_phy_probe()
210 	if (IS_ERR(phy->rstdev)) {  in ralink_usb_phy_probe()
211 		dev_err(dev, "device reset is missing\n");  in ralink_usb_phy_probe()
212 		return PTR_ERR(phy->rstdev);  in ralink_usb_phy_probe()
215 	phy->phy = devm_phy_create(dev, NULL, &ralink_usb_phy_ops);  in ralink_usb_phy_probe()
216 	if (IS_ERR(phy->phy)) {  in ralink_usb_phy_probe()
218 		return PTR_ERR(phy->phy);  in ralink_usb_phy_probe()
220 	phy_set_drvdata(phy->phy, phy);  in ralink_usb_phy_probe()
231 		.name  = "ralink-usb-phy",