1 // SPDX-License-Identifier: GPL-2.0+
16 #include <linux/usb.h>
17 #include <linux/usb/otg.h>
23 #define FOTG210_RR_ID			BIT(21) /* 1 = B-device, 0 = A-device */
27  * Gemini-specific initialization function, only executed on the
30  * The gemini USB blocks are connected to either Mini-A (host mode) or
31  * Mini-B (peripheral mode) plugs. There is no role switch support on the
32  * Gemini SoC, just either-or.
45 	struct device *dev = fotg->dev;  in fotg210_gemini_init()
46 	struct device_node *np = dev->of_node;  in fotg210_gemini_init()
55 	fotg->map = map;  in fotg210_gemini_init()
56 	wakeup = of_property_read_bool(np, "wakeup-source");  in fotg210_gemini_init()
63 	if (res->start == 0x69000000) {  in fotg210_gemini_init()
64 		fotg->port = GEMINI_PORT_1;  in fotg210_gemini_init()
74 		fotg->port = GEMINI_PORT_0;  in fotg210_gemini_init()
97  * fotg210_vbus() - Called by gadget driver to enable/disable VBUS
107 	switch (fotg->port) {  in fotg210_vbus()
119 	ret = regmap_update_bits(fotg->map, GEMINI_GLOBAL_MISC_CTRL, mask, val);  in fotg210_vbus()
121 		dev_err(fotg->dev, "failed to %s VBUS\n",  in fotg210_vbus()
123 	dev_info(fotg->dev, "%s: %s VBUS\n", __func__, enable ? "enable" : "disable");  in fotg210_vbus()
128 	struct device *dev = &pdev->dev;  in fotg210_probe()
136 		return -ENOMEM;  in fotg210_probe()
137 	fotg->dev = dev;  in fotg210_probe()
139 	fotg->base = devm_platform_get_and_ioremap_resource(pdev, 0, &fotg->res);  in fotg210_probe()
140 	if (IS_ERR(fotg->base))  in fotg210_probe()
141 		return PTR_ERR(fotg->base);  in fotg210_probe()
143 	fotg->pclk = devm_clk_get_optional_enabled(dev, "PCLK");  in fotg210_probe()
144 	if (IS_ERR(fotg->pclk))  in fotg210_probe()
145 		return PTR_ERR(fotg->pclk);  in fotg210_probe()
149 	if (of_device_is_compatible(dev->of_node, "cortina,gemini-usb")) {  in fotg210_probe()
150 		ret = fotg210_gemini_init(fotg, fotg->res, mode);  in fotg210_probe()
155 	val = readl(fotg->base + FOTG210_RR);  in fotg210_probe()
171 	struct device *dev = &pdev->dev;  in fotg210_remove()
217 MODULE_AUTHOR("Yuan-Hsin Chen, Feng-Hsin Chiang");