usb/host/uhci-grlib.c

1 // SPDX-License-Identifier: GPL-2.0
9  * (C) Copyright 1999-2002 Johannes Erdfelt, johannes@erdfelt.com
16  *               support from usb-ohci.c by Adam Richter, adam@yggdrasil.com).
17  * (C) Copyright 1999 Gregory P. Smith (from usb-ohci.c)
18  * (C) Copyright 2004-2007 Alan Stern, stern@rowland.harvard.edu
34 	 * with bit 7 (0x80) turned on then the current little-endian  in uhci_grlib_init()
36 	 * byte-swapped; hence the register interface and presumably  in uhci_grlib_init()
37 	 * also the descriptors are big-endian.  in uhci_grlib_init()
40 		uhci->big_endian_mmio = 1;  in uhci_grlib_init()
41 		uhci->big_endian_desc = 1;  in uhci_grlib_init()
44 	uhci->rh_numports = uhci_count_ports(hcd);  in uhci_grlib_init()
47 	uhci->reset_hc = uhci_generic_reset_hc;  in uhci_grlib_init()
48 	uhci->check_and_reset_hc = uhci_generic_check_and_reset_hc;  in uhci_grlib_init()
50 	uhci->configure_hc = NULL;  in uhci_grlib_init()
51 	uhci->resume_detect_interrupts_are_broken = NULL;  in uhci_grlib_init()
52 	uhci->global_suspend_mode_is_broken = NULL;  in uhci_grlib_init()
92 	struct device_node *dn = op->dev.of_node;  in uhci_hcd_grlib_probe()
100 		return -ENODEV;  in uhci_hcd_grlib_probe()
102 	dev_dbg(&op->dev, "initializing GRUSBHC UHCI USB Controller\n");  in uhci_hcd_grlib_probe()
109 	op->dev.dma_mask = &op->dev.coherent_dma_mask;  in uhci_hcd_grlib_probe()
110 	hcd = usb_create_hcd(&uhci_grlib_hc_driver, &op->dev,  in uhci_hcd_grlib_probe()
113 		return -ENOMEM;  in uhci_hcd_grlib_probe()
115 	hcd->rsrc_start = res.start;  in uhci_hcd_grlib_probe()
116 	hcd->rsrc_len = resource_size(&res);  in uhci_hcd_grlib_probe()
121 		rv = -EBUSY;  in uhci_hcd_grlib_probe()
125 	hcd->regs = devm_ioremap_resource(&op->dev, &res);  in uhci_hcd_grlib_probe()
126 	if (IS_ERR(hcd->regs)) {  in uhci_hcd_grlib_probe()
127 		rv = PTR_ERR(hcd->regs);  in uhci_hcd_grlib_probe()
133 	uhci->regs = hcd->regs;  in uhci_hcd_grlib_probe()
139 	device_wakeup_enable(hcd->self.controller);  in uhci_hcd_grlib_probe()
154 	dev_dbg(&op->dev, "stopping GRLIB GRUSBHC UHCI USB Controller\n");  in uhci_hcd_grlib_remove()
158 	irq_dispose_mapping(hcd->irq);  in uhci_hcd_grlib_remove()
189 		.name = "grlib-uhci",