Loading...
1/*
2 * PS3 EHCI 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/firmware.h>
22#include <asm/ps3.h>
23
24static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
25{
26 int result;
27 struct ehci_hcd *ehci = hcd_to_ehci(hcd);
28
29 ehci->big_endian_mmio = 1;
30
31 ehci->caps = hcd->regs;
32 ehci->regs = hcd->regs + HC_LENGTH(ehci, ehci_readl(ehci,
33 &ehci->caps->hc_capbase));
34
35 dbg_hcs_params(ehci, "reset");
36 dbg_hcc_params(ehci, "reset");
37
38 ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
39
40 result = ehci_halt(ehci);
41
42 if (result)
43 return result;
44
45 result = ehci_init(hcd);
46
47 if (result)
48 return result;
49
50 ehci_reset(ehci);
51
52 return result;
53}
54
55static const struct hc_driver ps3_ehci_hc_driver = {
56 .description = hcd_name,
57 .product_desc = "PS3 EHCI Host Controller",
58 .hcd_priv_size = sizeof(struct ehci_hcd),
59 .irq = ehci_irq,
60 .flags = HCD_MEMORY | HCD_USB2,
61 .reset = ps3_ehci_hc_reset,
62 .start = ehci_run,
63 .stop = ehci_stop,
64 .shutdown = ehci_shutdown,
65 .urb_enqueue = ehci_urb_enqueue,
66 .urb_dequeue = ehci_urb_dequeue,
67 .endpoint_disable = ehci_endpoint_disable,
68 .endpoint_reset = ehci_endpoint_reset,
69 .get_frame_number = ehci_get_frame,
70 .hub_status_data = ehci_hub_status_data,
71 .hub_control = ehci_hub_control,
72#if defined(CONFIG_PM)
73 .bus_suspend = ehci_bus_suspend,
74 .bus_resume = ehci_bus_resume,
75#endif
76 .relinquish_port = ehci_relinquish_port,
77 .port_handed_over = ehci_port_handed_over,
78
79 .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
80};
81
82static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev)
83{
84 int result;
85 struct usb_hcd *hcd;
86 unsigned int virq;
87 static u64 dummy_mask = DMA_BIT_MASK(32);
88
89 if (usb_disabled()) {
90 result = -ENODEV;
91 goto fail_start;
92 }
93
94 result = ps3_open_hv_device(dev);
95
96 if (result) {
97 dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
98 __func__, __LINE__);
99 goto fail_open;
100 }
101
102 result = ps3_dma_region_create(dev->d_region);
103
104 if (result) {
105 dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
106 "(%d)\n", __func__, __LINE__, result);
107 BUG_ON("check region type");
108 goto fail_dma_region;
109 }
110
111 result = ps3_mmio_region_create(dev->m_region);
112
113 if (result) {
114 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
115 __func__, __LINE__);
116 result = -EPERM;
117 goto fail_mmio_region;
118 }
119
120 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
121 __LINE__, dev->m_region->lpar_addr);
122
123 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
124
125 if (result) {
126 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
127 __func__, __LINE__, virq);
128 result = -EPERM;
129 goto fail_irq;
130 }
131
132 dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
133
134 hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));
135
136 if (!hcd) {
137 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
138 __LINE__);
139 result = -ENOMEM;
140 goto fail_create_hcd;
141 }
142
143 hcd->rsrc_start = dev->m_region->lpar_addr;
144 hcd->rsrc_len = dev->m_region->len;
145
146 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
147 dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
148 __func__, __LINE__);
149
150 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
151
152 if (!hcd->regs) {
153 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
154 __LINE__);
155 result = -EPERM;
156 goto fail_ioremap;
157 }
158
159 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
160 (unsigned long)hcd->rsrc_start);
161 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
162 (unsigned long)hcd->rsrc_len);
163 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
164 (unsigned long)hcd->regs);
165 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
166 (unsigned long)virq);
167
168 ps3_system_bus_set_drvdata(dev, hcd);
169
170 result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
171
172 if (result) {
173 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
174 __func__, __LINE__, result);
175 goto fail_add_hcd;
176 }
177
178 return result;
179
180fail_add_hcd:
181 iounmap(hcd->regs);
182fail_ioremap:
183 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
184 usb_put_hcd(hcd);
185fail_create_hcd:
186 ps3_io_irq_destroy(virq);
187fail_irq:
188 ps3_free_mmio_region(dev->m_region);
189fail_mmio_region:
190 ps3_dma_region_free(dev->d_region);
191fail_dma_region:
192 ps3_close_hv_device(dev);
193fail_open:
194fail_start:
195 return result;
196}
197
198static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
199{
200 unsigned int tmp;
201 struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
202
203 BUG_ON(!hcd);
204
205 dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
206 dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
207
208 tmp = hcd->irq;
209
210 ehci_shutdown(hcd);
211 usb_remove_hcd(hcd);
212
213 ps3_system_bus_set_drvdata(dev, NULL);
214
215 BUG_ON(!hcd->regs);
216 iounmap(hcd->regs);
217
218 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
219 usb_put_hcd(hcd);
220
221 ps3_io_irq_destroy(tmp);
222 ps3_free_mmio_region(dev->m_region);
223
224 ps3_dma_region_free(dev->d_region);
225 ps3_close_hv_device(dev);
226
227 return 0;
228}
229
230static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
231{
232 return firmware_has_feature(FW_FEATURE_PS3_LV1)
233 ? ps3_system_bus_driver_register(drv)
234 : 0;
235}
236
237static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
238{
239 if (firmware_has_feature(FW_FEATURE_PS3_LV1))
240 ps3_system_bus_driver_unregister(drv);
241}
242
243MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
244
245static struct ps3_system_bus_driver ps3_ehci_driver = {
246 .core.name = "ps3-ehci-driver",
247 .core.owner = THIS_MODULE,
248 .match_id = PS3_MATCH_ID_EHCI,
249 .probe = ps3_ehci_probe,
250 .remove = ps3_ehci_remove,
251 .shutdown = ps3_ehci_remove,
252};
1/*
2 * PS3 EHCI 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/firmware.h>
22#include <asm/ps3.h>
23
24static void ps3_ehci_setup_insnreg(struct ehci_hcd *ehci)
25{
26 /* PS3 HC internal setup register offsets. */
27
28 enum ps3_ehci_hc_insnreg {
29 ps3_ehci_hc_insnreg01 = 0x084,
30 ps3_ehci_hc_insnreg02 = 0x088,
31 ps3_ehci_hc_insnreg03 = 0x08c,
32 };
33
34 /* PS3 EHCI HC errata fix 316 - The PS3 EHCI HC will reset its
35 * internal INSNREGXX setup regs back to the chip default values
36 * on Host Controller Reset (CMD_RESET) or Light Host Controller
37 * Reset (CMD_LRESET). The work-around for this is for the HC
38 * driver to re-initialise these regs when ever the HC is reset.
39 */
40
41 /* Set burst transfer counts to 256 out, 32 in. */
42
43 writel_be(0x01000020, (void __iomem *)ehci->regs +
44 ps3_ehci_hc_insnreg01);
45
46 /* Enable burst transfer counts. */
47
48 writel_be(0x00000001, (void __iomem *)ehci->regs +
49 ps3_ehci_hc_insnreg03);
50}
51
52static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
53{
54 int result;
55 struct ehci_hcd *ehci = hcd_to_ehci(hcd);
56
57 ehci->big_endian_mmio = 1;
58 ehci->caps = hcd->regs;
59
60 result = ehci_setup(hcd);
61 if (result)
62 return result;
63
64 ps3_ehci_setup_insnreg(ehci);
65
66 return result;
67}
68
69static const struct hc_driver ps3_ehci_hc_driver = {
70 .description = hcd_name,
71 .product_desc = "PS3 EHCI Host Controller",
72 .hcd_priv_size = sizeof(struct ehci_hcd),
73 .irq = ehci_irq,
74 .flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
75 .reset = ps3_ehci_hc_reset,
76 .start = ehci_run,
77 .stop = ehci_stop,
78 .shutdown = ehci_shutdown,
79 .urb_enqueue = ehci_urb_enqueue,
80 .urb_dequeue = ehci_urb_dequeue,
81 .endpoint_disable = ehci_endpoint_disable,
82 .endpoint_reset = ehci_endpoint_reset,
83 .get_frame_number = ehci_get_frame,
84 .hub_status_data = ehci_hub_status_data,
85 .hub_control = ehci_hub_control,
86#if defined(CONFIG_PM)
87 .bus_suspend = ehci_bus_suspend,
88 .bus_resume = ehci_bus_resume,
89#endif
90 .relinquish_port = ehci_relinquish_port,
91 .port_handed_over = ehci_port_handed_over,
92
93 .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
94};
95
96static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
97{
98 int result;
99 struct usb_hcd *hcd;
100 unsigned int virq;
101 static u64 dummy_mask = DMA_BIT_MASK(32);
102
103 if (usb_disabled()) {
104 result = -ENODEV;
105 goto fail_start;
106 }
107
108 result = ps3_open_hv_device(dev);
109
110 if (result) {
111 dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n",
112 __func__, __LINE__);
113 goto fail_open;
114 }
115
116 result = ps3_dma_region_create(dev->d_region);
117
118 if (result) {
119 dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
120 "(%d)\n", __func__, __LINE__, result);
121 BUG_ON("check region type");
122 goto fail_dma_region;
123 }
124
125 result = ps3_mmio_region_create(dev->m_region);
126
127 if (result) {
128 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
129 __func__, __LINE__);
130 result = -EPERM;
131 goto fail_mmio_region;
132 }
133
134 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
135 __LINE__, dev->m_region->lpar_addr);
136
137 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
138
139 if (result) {
140 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
141 __func__, __LINE__, virq);
142 result = -EPERM;
143 goto fail_irq;
144 }
145
146 dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
147
148 hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core));
149
150 if (!hcd) {
151 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
152 __LINE__);
153 result = -ENOMEM;
154 goto fail_create_hcd;
155 }
156
157 hcd->rsrc_start = dev->m_region->lpar_addr;
158 hcd->rsrc_len = dev->m_region->len;
159
160 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
161 dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
162 __func__, __LINE__);
163
164 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
165
166 if (!hcd->regs) {
167 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
168 __LINE__);
169 result = -EPERM;
170 goto fail_ioremap;
171 }
172
173 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
174 (unsigned long)hcd->rsrc_start);
175 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
176 (unsigned long)hcd->rsrc_len);
177 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
178 (unsigned long)hcd->regs);
179 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
180 (unsigned long)virq);
181
182 ps3_system_bus_set_drvdata(dev, hcd);
183
184 result = usb_add_hcd(hcd, virq, 0);
185
186 if (result) {
187 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
188 __func__, __LINE__, result);
189 goto fail_add_hcd;
190 }
191
192 device_wakeup_enable(hcd->self.controller);
193 return result;
194
195fail_add_hcd:
196 iounmap(hcd->regs);
197fail_ioremap:
198 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
199 usb_put_hcd(hcd);
200fail_create_hcd:
201 ps3_io_irq_destroy(virq);
202fail_irq:
203 ps3_free_mmio_region(dev->m_region);
204fail_mmio_region:
205 ps3_dma_region_free(dev->d_region);
206fail_dma_region:
207 ps3_close_hv_device(dev);
208fail_open:
209fail_start:
210 return result;
211}
212
213static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
214{
215 unsigned int tmp;
216 struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev);
217
218 BUG_ON(!hcd);
219
220 dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
221 dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
222
223 tmp = hcd->irq;
224
225 usb_remove_hcd(hcd);
226
227 ps3_system_bus_set_drvdata(dev, NULL);
228
229 BUG_ON(!hcd->regs);
230 iounmap(hcd->regs);
231
232 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
233 usb_put_hcd(hcd);
234
235 ps3_io_irq_destroy(tmp);
236 ps3_free_mmio_region(dev->m_region);
237
238 ps3_dma_region_free(dev->d_region);
239 ps3_close_hv_device(dev);
240
241 return 0;
242}
243
244static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv)
245{
246 return firmware_has_feature(FW_FEATURE_PS3_LV1)
247 ? ps3_system_bus_driver_register(drv)
248 : 0;
249}
250
251static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv)
252{
253 if (firmware_has_feature(FW_FEATURE_PS3_LV1))
254 ps3_system_bus_driver_unregister(drv);
255}
256
257MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
258
259static struct ps3_system_bus_driver ps3_ehci_driver = {
260 .core.name = "ps3-ehci-driver",
261 .core.owner = THIS_MODULE,
262 .match_id = PS3_MATCH_ID_EHCI,
263 .probe = ps3_ehci_probe,
264 .remove = ps3_ehci_remove,
265 .shutdown = ps3_ehci_remove,
266};