1/* 2 * PS3 OHCI Host Controller driver 3 * 4 * Copyright (C) 2006 Sony Computer Entertainment Inc. 5 * Copyright 2006 Sony Corp. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; version 2 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21#include <asm/ps3.h> 22 23static int ps3_ohci_hc_reset(struct usb_hcd *hcd) 24{ 25 struct ohci_hcd *ohci = hcd_to_ohci(hcd); 26 27 ohci->flags |= OHCI_QUIRK_BE_MMIO; 28 ohci_hcd_init(ohci); 29 return ohci_init(ohci); 30} 31 32static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd) 33{ 34 int result; 35 struct ohci_hcd *ohci = hcd_to_ohci(hcd); 36 37 /* Handle root hub init quirk in spider south bridge. */ 38 /* Also set PwrOn2PwrGood to 0x7f (254ms). */ 39 40 ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM, 41 &ohci->regs->roothub.a); 42 ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b); 43 44 result = ohci_run(ohci); 45 46 if (result < 0) { 47 err("can't start %s", hcd->self.bus_name); 48 ohci_stop(hcd); 49 } 50 51 return result; 52} 53 54static const struct hc_driver ps3_ohci_hc_driver = { 55 .description = hcd_name, 56 .product_desc = "PS3 OHCI Host Controller", 57 .hcd_priv_size = sizeof(struct ohci_hcd), 58 .irq = ohci_irq, 59 .flags = HCD_MEMORY | HCD_USB11, 60 .reset = ps3_ohci_hc_reset, 61 .start = ps3_ohci_hc_start, 62 .stop = ohci_stop, 63 .shutdown = ohci_shutdown, 64 .urb_enqueue = ohci_urb_enqueue, 65 .urb_dequeue = ohci_urb_dequeue, 66 .endpoint_disable = ohci_endpoint_disable, 67 .get_frame_number = ohci_get_frame, 68 .hub_status_data = ohci_hub_status_data, 69 .hub_control = ohci_hub_control, 70 .hub_irq_enable = ohci_rhsc_enable, 71 .start_port_reset = ohci_start_port_reset, 72#if defined(CONFIG_PM) 73 .bus_suspend = ohci_bus_suspend, 74 .bus_resume = ohci_bus_resume, 75#endif 76}; 77 78static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev) 79{ 80 int result; 81 struct usb_hcd *hcd; 82 unsigned int virq; 83 static u64 dummy_mask = DMA_32BIT_MASK; 84 85 if (usb_disabled()) { 86 result = -ENODEV; 87 goto fail_start; 88 } 89 90 result = ps3_mmio_region_create(dev->m_region); 91 92 if (result) { 93 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", 94 __func__, __LINE__); 95 result = -EPERM; 96 goto fail_mmio; 97 } 98 99 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, 100 __LINE__, dev->m_region->lpar_addr); 101 102 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); 103 104 if (result) { 105 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", 106 __func__, __LINE__, virq); 107 result = -EPERM; 108 goto fail_irq; 109 } 110 111 dev->core.power.power_state = PMSG_ON; 112 dev->core.dma_mask = &dummy_mask; 113 114 hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id); 115 116 if (!hcd) { 117 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, 118 __LINE__); 119 result = -ENOMEM; 120 goto fail_create_hcd; 121 } 122 123 hcd->rsrc_start = dev->m_region->lpar_addr; 124 hcd->rsrc_len = dev->m_region->len; 125 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); 126 127 if (!hcd->regs) { 128 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, 129 __LINE__); 130 result = -EPERM; 131 goto fail_ioremap; 132 } 133 134 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, 135 (unsigned long)hcd->rsrc_start); 136 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, 137 (unsigned long)hcd->rsrc_len); 138 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, 139 (unsigned long)hcd->regs); 140 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, 141 (unsigned long)virq); 142 143 ps3_system_bus_set_driver_data(dev, hcd); 144 145 result = usb_add_hcd(hcd, virq, IRQF_DISABLED); 146 147 if (result) { 148 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", 149 __func__, __LINE__, result); 150 goto fail_add_hcd; 151 } 152 153 return result; 154 155fail_add_hcd: 156 iounmap(hcd->regs); 157fail_ioremap: 158 usb_put_hcd(hcd); 159fail_create_hcd: 160 ps3_io_irq_destroy(virq); 161fail_irq: 162 ps3_free_mmio_region(dev->m_region); 163fail_mmio: 164fail_start: 165 return result; 166} 167 168static int ps3_ohci_sb_remove (struct ps3_system_bus_device *dev) 169{ 170 struct usb_hcd *hcd = 171 (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); 172 173 usb_put_hcd(hcd); 174 ps3_system_bus_set_driver_data(dev, NULL); 175 176 return 0; 177} 178 179MODULE_ALIAS("ps3-ohci"); 180 181static struct ps3_system_bus_driver ps3_ohci_sb_driver = { 182 .match_id = PS3_MATCH_ID_OHCI, 183 .core = { 184 .name = "ps3-ohci-driver", 185 }, 186 .probe = ps3_ohci_sb_probe, 187 .remove = ps3_ohci_sb_remove, 188}; 189