1 // SPDX-License-Identifier: GPL-2.0
3  * Generic DWC3 Glue layer
5  * Copyright (C) 2016 - 2018 Xilinx, Inc.
7  * Based on dwc3-omap.c.
11 #include <asm-generic/io.h>
13 #include <dm/device-internal.h>
15 #include <dwc3-uboot.h>
27 	struct dwc3 dwc3;  member
36 	struct dwc3 *dwc3 = &priv->dwc3;  in dm_usb_gadget_handle_interrupts()  local
38 	dwc3_gadget_uboot_handle_interrupt(dwc3);  in dm_usb_gadget_handle_interrupts()
47 	struct dwc3 *dwc3 = &priv->dwc3;  in dwc3_generic_peripheral_probe()  local
49 	rc = dwc3_setup_phy(dev, &priv->phys, &priv->num_phys);  in dwc3_generic_peripheral_probe()
53 	dwc3->regs = map_physmem(priv->base, DWC3_OTG_REGS_END, MAP_NOCACHE);  in dwc3_generic_peripheral_probe()
54 	dwc3->regs += DWC3_GLOBALS_REGS_START;  in dwc3_generic_peripheral_probe()
55 	dwc3->dev = dev;  in dwc3_generic_peripheral_probe()
57 	rc =  dwc3_init(dwc3);  in dwc3_generic_peripheral_probe()
59 		unmap_physmem(dwc3->regs, MAP_NOCACHE);  in dwc3_generic_peripheral_probe()
69 	struct dwc3 *dwc3 = &priv->dwc3;  in dwc3_generic_peripheral_remove()  local
71 	dwc3_remove(dwc3);  in dwc3_generic_peripheral_remove()
72 	dwc3_shutdown_phy(dev, priv->phys, priv->num_phys);  in dwc3_generic_peripheral_remove()
73 	unmap_physmem(dwc3->regs, MAP_NOCACHE);  in dwc3_generic_peripheral_remove()
81 	struct dwc3 *dwc3 = &priv->dwc3;  in dwc3_generic_peripheral_ofdata_to_platdata()  local
84 	priv->base = devfdt_get_addr(dev);  in dwc3_generic_peripheral_ofdata_to_platdata()
86 	dwc3->maximum_speed = usb_get_maximum_speed(node);  in dwc3_generic_peripheral_ofdata_to_platdata()
87 	if (dwc3->maximum_speed == USB_SPEED_UNKNOWN) {  in dwc3_generic_peripheral_ofdata_to_platdata()
89 		return -ENODEV;  in dwc3_generic_peripheral_ofdata_to_platdata()
92 	dwc3->dr_mode = usb_get_dr_mode(node);  in dwc3_generic_peripheral_ofdata_to_platdata()
93 	if (dwc3->dr_mode == USB_DR_MODE_UNKNOWN) {  in dwc3_generic_peripheral_ofdata_to_platdata()
95 		return -ENODEV;  in dwc3_generic_peripheral_ofdata_to_platdata()
102 	.name	= "dwc3-generic-peripheral",
149 	void *base = map_physmem(glue->regs, 0x10000, MAP_NOCACHE);  in dwc3_ti_select_dr_mode()
151 	if (device_is_compatible(dev, "ti,am437x-dwc3"))  in dwc3_ti_select_dr_mode()
154 	utmi_mode = dev_read_u32_default(dev, "utmi-mode",  in dwc3_ti_select_dr_mode()
158 		      dev->name);  in dwc3_ti_select_dr_mode()
208 	const void *fdt = gd->fdt_blob;  in dwc3_glue_bind()
228 			driver = "dwc3-generic-peripheral";  in dwc3_glue_bind()
233 			driver = "xhci-dwc3";  in dwc3_glue_bind()
237 			return -ENODEV;  in dwc3_glue_bind()
260 	ret = reset_get_bulk(dev, &glue->resets);  in dwc3_glue_reset_init()
261 	if (ret == -ENOTSUPP)  in dwc3_glue_reset_init()
266 	ret = reset_deassert_bulk(&glue->resets);  in dwc3_glue_reset_init()
268 		reset_release_bulk(&glue->resets);  in dwc3_glue_reset_init()
280 	ret = clk_get_bulk(dev, &glue->clks);  in dwc3_glue_clk_init()
281 	if (ret == -ENOSYS)  in dwc3_glue_clk_init()
287 	ret = clk_enable_bulk(&glue->clks);  in dwc3_glue_clk_init()
289 		clk_release_bulk(&glue->clks);  in dwc3_glue_clk_init()
305 	glue->regs = dev_read_addr(dev);  in dwc3_glue_probe()
324 		if (ops && ops->select_dr_mode)  in dwc3_glue_probe()
325 			ops->select_dr_mode(dev, index, dr_mode);  in dwc3_glue_probe()
336 	reset_release_bulk(&glue->resets);  in dwc3_glue_remove()
338 	clk_release_bulk(&glue->clks);  in dwc3_glue_remove()
344 	{ .compatible = "xlnx,zynqmp-dwc3" },
345 	{ .compatible = "ti,keystone-dwc3"},
346 	{ .compatible = "ti,dwc3", .data = (ulong)&ti_ops },
347 	{ .compatible = "ti,am437x-dwc3", .data = (ulong)&ti_ops },
352 	.name	= "dwc3-generic-wrapper",