1 // SPDX-License-Identifier: GPL-1.0+
6  * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
7  * (C) Copyright 2002 Hewlett-Packard Company
12  * Modified for of_platform bus from ohci-sa1111.c
33 		dev_err(hcd->self.controller, "can't start %s\n",  in ohci_ppc_of_start()
34 			hcd->self.bus_name);  in ohci_ppc_of_start()
48 	 * generic hardware linkage
87 	struct device_node *dn = op->dev.of_node;  in ohci_hcd_ppc_of_probe()
98 		return -ENODEV;  in ohci_hcd_ppc_of_probe()
101 		of_device_is_compatible(dn, "ohci-bigendian") ||  in ohci_hcd_ppc_of_probe()
102 		of_device_is_compatible(dn, "ohci-be");  in ohci_hcd_ppc_of_probe()
104 	dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n");  in ohci_hcd_ppc_of_probe()
110 	hcd = usb_create_hcd(&ohci_ppc_of_hc_driver, &op->dev, "PPC-OF USB");  in ohci_hcd_ppc_of_probe()
112 		return -ENOMEM;  in ohci_hcd_ppc_of_probe()
114 	hcd->rsrc_start = res.start;  in ohci_hcd_ppc_of_probe()
115 	hcd->rsrc_len = resource_size(&res);  in ohci_hcd_ppc_of_probe()
117 	hcd->regs = devm_ioremap_resource(&op->dev, &res);  in ohci_hcd_ppc_of_probe()
118 	if (IS_ERR(hcd->regs)) {  in ohci_hcd_ppc_of_probe()
119 		rv = PTR_ERR(hcd->regs);  in ohci_hcd_ppc_of_probe()
125 		dev_err(&op->dev, "%s: irq_of_parse_and_map failed\n",  in ohci_hcd_ppc_of_probe()
127 		rv = -EBUSY;  in ohci_hcd_ppc_of_probe()
133 		ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC;  in ohci_hcd_ppc_of_probe()
134 		if (of_device_is_compatible(dn, "fsl,mpc5200-ohci"))  in ohci_hcd_ppc_of_probe()
135 			ohci->flags |= OHCI_QUIRK_FRAME_NO;  in ohci_hcd_ppc_of_probe()
136 		if (of_device_is_compatible(dn, "mpc5200-ohci"))  in ohci_hcd_ppc_of_probe()
137 			ohci->flags |= OHCI_QUIRK_FRAME_NO;  in ohci_hcd_ppc_of_probe()
144 		device_wakeup_enable(hcd->self.controller);  in ohci_hcd_ppc_of_probe()
149 	np = of_find_compatible_node(NULL, NULL, "ibm,usb-ehci-440epx");  in ohci_hcd_ppc_of_probe()
151 	/* Work around - At this point ohci_run has executed, the  in ohci_hcd_ppc_of_probe()
153 	* set up.  If the ehci driver is loaded, put the ohci core in  in ohci_hcd_ppc_of_probe()
154 	* the suspended state.  The ehci driver will bring it out of  in ohci_hcd_ppc_of_probe()
155 	* suspended state when / if a non-high speed USB device is  in ohci_hcd_ppc_of_probe()
156 	* attached to the USB Host port.  If the ehci driver is not  in ohci_hcd_ppc_of_probe()
158 	* the ehci driver is loaded.  in ohci_hcd_ppc_of_probe()
163 				writel_be((readl_be(&ohci->regs->control) |  in ohci_hcd_ppc_of_probe()
164 					OHCI_USB_SUSPEND), &ohci->regs->control);  in ohci_hcd_ppc_of_probe()
165 					(void) readl_be(&ohci->regs->control);  in ohci_hcd_ppc_of_probe()
169 			pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__);  in ohci_hcd_ppc_of_probe()
184 	dev_dbg(&op->dev, "stopping PPC-OF USB Controller\n");  in ohci_hcd_ppc_of_remove()
188 	irq_dispose_mapping(hcd->irq);  in ohci_hcd_ppc_of_remove()
197 		.compatible = "ohci-bigendian",
201 		.compatible = "ohci-be",
207 		.compatible = "ohci-le",
216 #error "No endianness selected for ppc-of-ohci"
225 		.name = "ppc-of-ohci",