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Merge tag 'remoteproc-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad...
[linux-2.6-block.git] / drivers / usb / host / ohci-ps3.c
CommitLineData
6a6c957e
GL		 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
7a4eb7fd 21#include <asm/firmware.h>
6a6c957e
GL		 22#include <asm/ps3.h>
23
24static int ps3_ohci_hc_reset(struct usb_hcd *hcd)
25{
26 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
27
28 ohci->flags |= OHCI_QUIRK_BE_MMIO;
29 ohci_hcd_init(ohci);
30 return ohci_init(ohci);
31}
32
33static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd)
34{
35 int result;
36 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
37
38 /* Handle root hub init quirk in spider south bridge. */
39 /* Also set PwrOn2PwrGood to 0x7f (254ms). */
40
41 ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
42 &ohci->regs->roothub.a);
43 ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
44
45 result = ohci_run(ohci);
46
47 if (result < 0) {
8ab60ea0
GKH		 48 dev_err(hcd->self.controller, "can't start %s\n",
49 hcd->self.bus_name);
6a6c957e
GL		 50 ohci_stop(hcd);
51 }
52
53 return result;
54}
55
56static const struct hc_driver ps3_ohci_hc_driver = {
57 .description = hcd_name,
58 .product_desc = "PS3 OHCI Host Controller",
59 .hcd_priv_size = sizeof(struct ohci_hcd),
60 .irq = ohci_irq,
61 .flags = HCD_MEMORY | HCD_USB11,
62 .reset = ps3_ohci_hc_reset,
63 .start = ps3_ohci_hc_start,
64 .stop = ohci_stop,
65 .shutdown = ohci_shutdown,
66 .urb_enqueue = ohci_urb_enqueue,
67 .urb_dequeue = ohci_urb_dequeue,
68 .endpoint_disable = ohci_endpoint_disable,
69 .get_frame_number = ohci_get_frame,
70 .hub_status_data = ohci_hub_status_data,
71 .hub_control = ohci_hub_control,
6a6c957e
GL		 72 .start_port_reset = ohci_start_port_reset,
73#if defined(CONFIG_PM)
74 .bus_suspend = ohci_bus_suspend,
75 .bus_resume = ohci_bus_resume,
76#endif
77};
78
31348517 79static int __devinit ps3_ohci_probe(struct ps3_system_bus_device *dev)
6a6c957e
GL		 80{
81 int result;
82 struct usb_hcd *hcd;
83 unsigned int virq;
284901a9 84 static u64 dummy_mask = DMA_BIT_MASK(32);
6a6c957e
GL		 85
86 if (usb_disabled()) {
87 result = -ENODEV;
88 goto fail_start;
89 }
90
7a4eb7fd
GL		 91 result = ps3_open_hv_device(dev);
92
93 if (result) {
94 dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed: %s\n",
95 __func__, __LINE__, ps3_result(result));
96 result = -EPERM;
97 goto fail_open;
98 }
99
100 result = ps3_dma_region_create(dev->d_region);
101
102 if (result) {
103 dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
104 "(%d)\n", __func__, __LINE__, result);
105 BUG_ON("check region type");
106 goto fail_dma_region;
107 }
108
6a6c957e
GL		 109 result = ps3_mmio_region_create(dev->m_region);
110
111 if (result) {
112 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
113 __func__, __LINE__);
114 result = -EPERM;
7a4eb7fd 115 goto fail_mmio_region;
6a6c957e
GL		 116 }
117
118 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
119 __LINE__, dev->m_region->lpar_addr);
120
dc4f60c2 121 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
6a6c957e
GL		 122
123 if (result) {
124 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
125 __func__, __LINE__, virq);
126 result = -EPERM;
127 goto fail_irq;
128 }
129
6a6c957e
GL		 130 dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
131
7071a3ce 132 hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core));
6a6c957e
GL		 133
134 if (!hcd) {
135 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
136 __LINE__);
137 result = -ENOMEM;
138 goto fail_create_hcd;
139 }
140
141 hcd->rsrc_start = dev->m_region->lpar_addr;
142 hcd->rsrc_len = dev->m_region->len;
7a4eb7fd
GL		 143
144 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
145 dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
146 __func__, __LINE__);
147
6a6c957e
GL		 148 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
149
150 if (!hcd->regs) {
151 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
152 __LINE__);
153 result = -EPERM;
154 goto fail_ioremap;
155 }
156
157 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
158 (unsigned long)hcd->rsrc_start);
159 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
160 (unsigned long)hcd->rsrc_len);
161 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
162 (unsigned long)hcd->regs);
163 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
164 (unsigned long)virq);
165
03fa68c2 166 ps3_system_bus_set_drvdata(dev, hcd);
6a6c957e 167
b5dd18d8 168 result = usb_add_hcd(hcd, virq, 0);
6a6c957e
GL		 169
170 if (result) {
171 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
172 __func__, __LINE__, result);
173 goto fail_add_hcd;
174 }
175
176 return result;
177
178fail_add_hcd:
179 iounmap(hcd->regs);
180fail_ioremap:
7a4eb7fd 181 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
6a6c957e
GL		 182 usb_put_hcd(hcd);
183fail_create_hcd:
dc4f60c2 184 ps3_io_irq_destroy(virq);
6a6c957e
GL		 185fail_irq:
186 ps3_free_mmio_region(dev->m_region);
7a4eb7fd
GL		 187fail_mmio_region:
188 ps3_dma_region_free(dev->d_region);
189fail_dma_region:
190 ps3_close_hv_device(dev);
191fail_open:
6a6c957e
GL		 192fail_start:
193 return result;
194}
195
ddcb01ff 196static int ps3_ohci_remove(struct ps3_system_bus_device *dev)
6a6c957e 197{
7a4eb7fd 198 unsigned int tmp;
03fa68c2 199 struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
6a6c957e 200
7a4eb7fd
GL		 201 BUG_ON(!hcd);
202
203 dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
204 dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
205
206 tmp = hcd->irq;
207
ddcb01ff 208 ohci_shutdown(hcd);
7a4eb7fd
GL		 209 usb_remove_hcd(hcd);
210
03fa68c2 211 ps3_system_bus_set_drvdata(dev, NULL);
6a6c957e 212
7a4eb7fd
GL		 213 BUG_ON(!hcd->regs);
214 iounmap(hcd->regs);
215
216 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
217 usb_put_hcd(hcd);
218
219 ps3_io_irq_destroy(tmp);
220 ps3_free_mmio_region(dev->m_region);
221
222 ps3_dma_region_free(dev->d_region);
223 ps3_close_hv_device(dev);
224
6a6c957e
GL		 225 return 0;
226}
227
31348517 228static int __init ps3_ohci_driver_register(struct ps3_system_bus_driver *drv)
7a4eb7fd
GL		 229{
230 return firmware_has_feature(FW_FEATURE_PS3_LV1)
231 ? ps3_system_bus_driver_register(drv)
232 : 0;
233}
234
235static void ps3_ohci_driver_unregister(struct ps3_system_bus_driver *drv)
236{
237 if (firmware_has_feature(FW_FEATURE_PS3_LV1))
238 ps3_system_bus_driver_unregister(drv);
239}
240
241MODULE_ALIAS(PS3_MODULE_ALIAS_OHCI);
6a6c957e 242
7a4eb7fd
GL		 243static struct ps3_system_bus_driver ps3_ohci_driver = {
244 .core.name = "ps3-ohci-driver",
245 .core.owner = THIS_MODULE,
6a6c957e 246 .match_id = PS3_MATCH_ID_OHCI,
7a4eb7fd
GL		 247 .probe = ps3_ohci_probe,
248 .remove = ps3_ohci_remove,
249 .shutdown = ps3_ohci_remove,
6a6c957e 250};
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