1 // SPDX-License-Identifier: GPL-2.0+
24 #define FOTG210_RR_ID			BIT(21) /* 1 = B-device, 0 = A-device */
28  * Gemini-specific initialization function, only executed on the
31  * The gemini USB blocks are connected to either Mini-A (host mode) or
32  * Mini-B (peripheral mode) plugs. There is no role switch support on the
33  * Gemini SoC, just either-or.
44 			       enum usb_dr_mode mode)  in fotg210_gemini_init()  argument
46 	struct device *dev = fotg->dev;  in fotg210_gemini_init()
47 	struct device_node *np = dev->of_node;  in fotg210_gemini_init()
49 	bool wakeup;  in fotg210_gemini_init()  local
56 	fotg->map = map;  in fotg210_gemini_init()
57 	wakeup = of_property_read_bool(np, "wakeup-source");  in fotg210_gemini_init()
64 	if (res->start == 0x69000000) {  in fotg210_gemini_init()
65 		fotg->port = GEMINI_PORT_1;  in fotg210_gemini_init()
68 		if (mode == USB_DR_MODE_HOST)  in fotg210_gemini_init()
72 		if (wakeup)  in fotg210_gemini_init()
75 		fotg->port = GEMINI_PORT_0;  in fotg210_gemini_init()
78 		if (mode == USB_DR_MODE_HOST)  in fotg210_gemini_init()
82 		if (wakeup)  in fotg210_gemini_init()
92 	dev_info(dev, "initialized Gemini PHY in %s mode\n",  in fotg210_gemini_init()
93 		 (mode == USB_DR_MODE_HOST) ? "host" : "gadget");  in fotg210_gemini_init()
98  * fotg210_vbus() - Called by gadget driver to enable/disable VBUS
108 	switch (fotg->port) {  in fotg210_vbus()
120 	ret = regmap_update_bits(fotg->map, GEMINI_GLOBAL_MISC_CTRL, mask, val);  in fotg210_vbus()
122 		dev_err(fotg->dev, "failed to %s VBUS\n",  in fotg210_vbus()
124 	dev_info(fotg->dev, "%s: %s VBUS\n", __func__, str_enable_disable(enable));  in fotg210_vbus()
129 	struct device *dev = &pdev->dev;  in fotg210_probe()
130 	enum usb_dr_mode mode;  in fotg210_probe()  local
137 		return -ENOMEM;  in fotg210_probe()
138 	fotg->dev = dev;  in fotg210_probe()
140 	fotg->base = devm_platform_get_and_ioremap_resource(pdev, 0, &fotg->res);  in fotg210_probe()
141 	if (IS_ERR(fotg->base))  in fotg210_probe()
142 		return PTR_ERR(fotg->base);  in fotg210_probe()
144 	fotg->pclk = devm_clk_get_optional_enabled(dev, "PCLK");  in fotg210_probe()
145 	if (IS_ERR(fotg->pclk))  in fotg210_probe()
146 		return PTR_ERR(fotg->pclk);  in fotg210_probe()
148 	mode = usb_get_dr_mode(dev);  in fotg210_probe()
150 	if (of_device_is_compatible(dev->of_node, "cortina,gemini-usb")) {  in fotg210_probe()
151 		ret = fotg210_gemini_init(fotg, fotg->res, mode);  in fotg210_probe()
156 	val = readl(fotg->base + FOTG210_RR);  in fotg210_probe()
157 	if (mode == USB_DR_MODE_PERIPHERAL) {  in fotg210_probe()
172 	struct device *dev = &pdev->dev;  in fotg210_remove()
173 	enum usb_dr_mode mode;  in fotg210_remove()  local
175 	mode = usb_get_dr_mode(dev);  in fotg210_remove()
177 	if (mode == USB_DR_MODE_PERIPHERAL)  in fotg210_remove()
218 MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang");