1 // SPDX-License-Identifier: GPL-2.0
3  * PMC MSP EHCI (Host Controller Driver) for USB.
5  * (C) Copyright 2006-2010 PMC-Sierra Inc
39 static void usb_hcd_tdi_set_mode(struct ehci_hcd *ehci)  in usb_hcd_tdi_set_mode()  argument
45 	struct ehci_regs *reg_base = ehci->regs;  in usb_hcd_tdi_set_mode()
53 	val = ehci_readl(ehci, (u32 *)base);  in usb_hcd_tdi_set_mode()
54 	ehci_writel(ehci, (val | USB_CTRL_MODE_STREAM_DISABLE),  in usb_hcd_tdi_set_mode()
58 	val = ehci_readl(ehci, (u32 *)statreg);  in usb_hcd_tdi_set_mode()
60 	ehci_writel(ehci, val, (u32 *)statreg);  in usb_hcd_tdi_set_mode()
63 	ehci_writel(ehci, USB_CTRL_FIFO_THRESH, (u32 *)fiforeg);  in usb_hcd_tdi_set_mode()
72 	struct ehci_hcd		*ehci = hcd_to_ehci(hcd);  in ehci_msp_setup()  local
75 	ehci->big_endian_mmio = 1;  in ehci_msp_setup()
76 	ehci->big_endian_desc = 1;  in ehci_msp_setup()
78 	ehci->caps = hcd->regs;  in ehci_msp_setup()
79 	hcd->has_tt = 1;  in ehci_msp_setup()
85 	usb_hcd_tdi_set_mode(ehci);  in ehci_msp_setup()
98 	struct platform_device *pdev = &dev->dev;  in usb_hcd_msp_map_regs()
105 		return -ENOMEM;  in usb_hcd_msp_map_regs()
107 	if (!request_mem_region(res->start, res_len, "mab regs"))  in usb_hcd_msp_map_regs()
108 		return -EBUSY;  in usb_hcd_msp_map_regs()
110 	dev->mab_regs = ioremap(res->start, res_len);  in usb_hcd_msp_map_regs()
111 	if (dev->mab_regs == NULL) {  in usb_hcd_msp_map_regs()
112 		retval = -ENOMEM;  in usb_hcd_msp_map_regs()
119 		retval = -ENOMEM;  in usb_hcd_msp_map_regs()
123 	if (!request_mem_region(res->start, res_len, "usbid regs")) {  in usb_hcd_msp_map_regs()
124 		retval = -EBUSY;  in usb_hcd_msp_map_regs()
127 	dev->usbid_regs = ioremap(res->start, res_len);  in usb_hcd_msp_map_regs()
128 	if (dev->usbid_regs == NULL) {  in usb_hcd_msp_map_regs()
129 		retval = -ENOMEM;  in usb_hcd_msp_map_regs()
137 	release_mem_region(res->start, res_len);  in usb_hcd_msp_map_regs()
139 	iounmap(dev->mab_regs);  in usb_hcd_msp_map_regs()
143 	release_mem_region(res->start, res_len);  in usb_hcd_msp_map_regs()
144 	dev_err(&pdev->dev, "Failed to map non-EHCI regs.\n");  in usb_hcd_msp_map_regs()
149  * usb_hcd_msp_probe - initialize PMC MSP-based HCDs
163 	struct ehci_hcd		*ehci ;  in usb_hcd_msp_probe()  local
165 	hcd = usb_create_hcd(driver, &dev->dev, "pmcmsp");  in usb_hcd_msp_probe()
167 		return -ENOMEM;  in usb_hcd_msp_probe()
171 		pr_debug("No IOMEM resource info for %s.\n", dev->name);  in usb_hcd_msp_probe()
172 		retval = -ENOMEM;  in usb_hcd_msp_probe()
175 	hcd->rsrc_start = res->start;  in usb_hcd_msp_probe()
176 	hcd->rsrc_len = resource_size(res);  in usb_hcd_msp_probe()
177 	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, dev->name)) {  in usb_hcd_msp_probe()
178 		retval = -EBUSY;  in usb_hcd_msp_probe()
181 	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);  in usb_hcd_msp_probe()
182 	if (!hcd->regs) {  in usb_hcd_msp_probe()
184 		retval = -ENOMEM;  in usb_hcd_msp_probe()
190 		dev_err(&dev->dev, "No IRQ resource info for %s.\n", dev->name);  in usb_hcd_msp_probe()
191 		retval = -ENOMEM;  in usb_hcd_msp_probe()
195 	/* Map non-EHCI register spaces */  in usb_hcd_msp_probe()
200 	ehci = hcd_to_ehci(hcd);  in usb_hcd_msp_probe()
201 	ehci->big_endian_mmio = 1;  in usb_hcd_msp_probe()
202 	ehci->big_endian_desc = 1;  in usb_hcd_msp_probe()
205 	retval = usb_add_hcd(hcd, res->start, IRQF_SHARED);  in usb_hcd_msp_probe()
207 		device_wakeup_enable(hcd->self.controller);  in usb_hcd_msp_probe()
213 	iounmap(hcd->regs);  in usb_hcd_msp_probe()
215 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);  in usb_hcd_msp_probe()
225  * usb_hcd_msp_remove - shutdown processing for PMC MSP-based HCDs
239 	iounmap(hcd->regs);  in usb_hcd_msp_remove()
240 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);  in usb_hcd_msp_remove()
246 	.product_desc =		"PMC MSP EHCI",
250 	 * generic hardware linkage
296 		return -ENODEV;  in ehci_hcd_msp_drv_probe()
317 MODULE_ALIAS("pmcmsp-ehci");
323 		.name	= "pmcmsp-ehci",