1 // SPDX-License-Identifier: GPL-2.0
3 * PS3 OHCI Host Controller driver
5 * Copyright (C) 2006 Sony Computer Entertainment Inc.
6 * Copyright 2006 Sony Corp.
9 #include <asm/firmware.h>
12 static int ps3_ohci_hc_reset(struct usb_hcd *hcd)
14 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
16 ohci->flags |= OHCI_QUIRK_BE_MMIO;
18 return ohci_init(ohci);
21 static int ps3_ohci_hc_start(struct usb_hcd *hcd)
24 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
26 /* Handle root hub init quirk in spider south bridge. */
27 /* Also set PwrOn2PwrGood to 0x7f (254ms). */
29 ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
30 &ohci->regs->roothub.a);
31 ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
33 result = ohci_run(ohci);
36 dev_err(hcd->self.controller, "can't start %s\n",
44 static const struct hc_driver ps3_ohci_hc_driver = {
45 .description = hcd_name,
46 .product_desc = "PS3 OHCI Host Controller",
47 .hcd_priv_size = sizeof(struct ohci_hcd),
49 .flags = HCD_MEMORY | HCD_USB11,
50 .reset = ps3_ohci_hc_reset,
51 .start = ps3_ohci_hc_start,
53 .shutdown = ohci_shutdown,
54 .urb_enqueue = ohci_urb_enqueue,
55 .urb_dequeue = ohci_urb_dequeue,
56 .endpoint_disable = ohci_endpoint_disable,
57 .get_frame_number = ohci_get_frame,
58 .hub_status_data = ohci_hub_status_data,
59 .hub_control = ohci_hub_control,
60 .start_port_reset = ohci_start_port_reset,
61 #if defined(CONFIG_PM)
62 .bus_suspend = ohci_bus_suspend,
63 .bus_resume = ohci_bus_resume,
67 static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
72 static u64 dummy_mask = DMA_BIT_MASK(32);
79 result = ps3_open_hv_device(dev);
82 dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed: %s\n",
83 __func__, __LINE__, ps3_result(result));
88 result = ps3_dma_region_create(dev->d_region);
91 dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
92 "(%d)\n", __func__, __LINE__, result);
93 BUG_ON("check region type");
97 result = ps3_mmio_region_create(dev->m_region);
100 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
103 goto fail_mmio_region;
106 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
107 __LINE__, dev->m_region->lpar_addr);
109 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
112 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
113 __func__, __LINE__, virq);
118 dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
120 hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core));
123 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
126 goto fail_create_hcd;
129 hcd->rsrc_start = dev->m_region->lpar_addr;
130 hcd->rsrc_len = dev->m_region->len;
132 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
133 dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
136 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
139 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
145 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
146 (unsigned long)hcd->rsrc_start);
147 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
148 (unsigned long)hcd->rsrc_len);
149 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
150 (unsigned long)hcd->regs);
151 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
152 (unsigned long)virq);
154 ps3_system_bus_set_drvdata(dev, hcd);
156 result = usb_add_hcd(hcd, virq, 0);
159 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
160 __func__, __LINE__, result);
164 device_wakeup_enable(hcd->self.controller);
170 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
173 ps3_io_irq_destroy(virq);
175 ps3_free_mmio_region(dev->m_region);
177 ps3_dma_region_free(dev->d_region);
179 ps3_close_hv_device(dev);
185 static int ps3_ohci_remove(struct ps3_system_bus_device *dev)
188 struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
192 dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
193 dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
200 ps3_system_bus_set_drvdata(dev, NULL);
205 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
208 ps3_io_irq_destroy(tmp);
209 ps3_free_mmio_region(dev->m_region);
211 ps3_dma_region_free(dev->d_region);
212 ps3_close_hv_device(dev);
217 static int __init ps3_ohci_driver_register(struct ps3_system_bus_driver *drv)
219 return firmware_has_feature(FW_FEATURE_PS3_LV1)
220 ? ps3_system_bus_driver_register(drv)
224 static void ps3_ohci_driver_unregister(struct ps3_system_bus_driver *drv)
226 if (firmware_has_feature(FW_FEATURE_PS3_LV1))
227 ps3_system_bus_driver_unregister(drv);
230 MODULE_ALIAS(PS3_MODULE_ALIAS_OHCI);
232 static struct ps3_system_bus_driver ps3_ohci_driver = {
233 .core.name = "ps3-ohci-driver",
234 .core.owner = THIS_MODULE,
235 .match_id = PS3_MATCH_ID_OHCI,
236 .probe = ps3_ohci_probe,
237 .remove = ps3_ohci_remove,
238 .shutdown = ps3_ohci_remove,