1 // SPDX-License-Identifier: GPL-2.0
3  * Renesas RCar Gen2 USB PHY driver
13 #include <generic-phy.h>
53 	struct rcar_gen2_phy *priv = dev_get_priv(phy->dev);  in rcar_gen2_phy_phy_init()
54 	u16 chan = phy->id & 0xffff;  in rcar_gen2_phy_phy_init()
55 	u16 mode = (phy->id >> 16) & 0xffff;  in rcar_gen2_phy_phy_init()
67 	clrsetbits_le32(priv->regs + USBHS_UGCTRL2, clrmask, setmask);  in rcar_gen2_phy_phy_init()
74 	struct rcar_gen2_phy *priv = dev_get_priv(phy->dev);  in rcar_gen2_phy_phy_power_on()
78 	/* Power on USBHS PHY */  in rcar_gen2_phy_phy_power_on()
79 	clrbits_le32(priv->regs + USBHS_UGCTRL, USBHS_UGCTRL_PLLRESET);  in rcar_gen2_phy_phy_power_on()
81 	setbits_le16(priv->regs + USBHS_LPSTS, USBHS_LPSTS_SUSPM);  in rcar_gen2_phy_phy_power_on()
84 		value = readl(priv->regs + USBHS_UGSTS);  in rcar_gen2_phy_phy_power_on()
86 			setbits_le32(priv->regs + USBHS_UGCTRL,  in rcar_gen2_phy_phy_power_on()
93 	return -ETIMEDOUT;  in rcar_gen2_phy_phy_power_on()
98 	struct rcar_gen2_phy *priv = dev_get_priv(phy->dev);  in rcar_gen2_phy_phy_power_off()
100 	/* Power off USBHS PHY */  in rcar_gen2_phy_phy_power_off()
101 	clrbits_le32(priv->regs + USBHS_UGCTRL, USBHS_UGCTRL_CONNECT);  in rcar_gen2_phy_phy_power_off()
103 	clrbits_le16(priv->regs + USBHS_LPSTS, USBHS_LPSTS_SUSPM);  in rcar_gen2_phy_phy_power_off()
105 	setbits_le32(priv->regs + USBHS_UGCTRL, USBHS_UGCTRL_PLLRESET);  in rcar_gen2_phy_phy_power_off()
113 	if (args->args_count != 2) {  in rcar_gen2_phy_of_xlate()
114 		dev_err(phy->dev, "Invalid DT PHY argument count: %d\n",  in rcar_gen2_phy_of_xlate()
115 			args->args_count);  in rcar_gen2_phy_of_xlate()
116 		return -EINVAL;  in rcar_gen2_phy_of_xlate()
119 	if (args->args[0] != 0 && args->args[0] != 2) {  in rcar_gen2_phy_of_xlate()
120 		dev_err(phy->dev, "Invalid DT PHY channel: %d\n",  in rcar_gen2_phy_of_xlate()
121 			args->args[0]);  in rcar_gen2_phy_of_xlate()
122 		return -EINVAL;  in rcar_gen2_phy_of_xlate()
125 	if (args->args[1] != 0 && args->args[1] != 1) {  in rcar_gen2_phy_of_xlate()
126 		dev_err(phy->dev, "Invalid DT PHY mode: %d\n",  in rcar_gen2_phy_of_xlate()
127 			args->args[1]);  in rcar_gen2_phy_of_xlate()
128 		return -EINVAL;  in rcar_gen2_phy_of_xlate()
131 	if (args->args_count)  in rcar_gen2_phy_of_xlate()
132 		phy->id = args->args[0] | (args->args[1] << 16);  in rcar_gen2_phy_of_xlate()
134 		phy->id = 0;  in rcar_gen2_phy_of_xlate()
151 	priv->regs = dev_read_addr(dev);  in rcar_gen2_phy_probe()
152 	if (priv->regs == FDT_ADDR_T_NONE)  in rcar_gen2_phy_probe()
153 		return -EINVAL;  in rcar_gen2_phy_probe()
156 	ret = clk_get_by_index(dev, 0, &priv->clk);  in rcar_gen2_phy_probe()
160 	ret = clk_enable(&priv->clk);  in rcar_gen2_phy_probe()
171 	clk_disable(&priv->clk);  in rcar_gen2_phy_remove()
172 	clk_free(&priv->clk);  in rcar_gen2_phy_remove()
178 	{ .compatible = "renesas,rcar-gen2-usb-phy", },
183 	.name		= "rcar-gen2-phy",