Commit | Line | Data |
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550a7375 FB |
1 | /* |
2 | * Copyright (C) 2005-2007 by Texas Instruments | |
3 | * Some code has been taken from tusb6010.c | |
4 | * Copyrights for that are attributable to: | |
5 | * Copyright (C) 2006 Nokia Corporation | |
550a7375 FB |
6 | * Tony Lindgren <tony@atomide.com> |
7 | * | |
8 | * This file is part of the Inventra Controller Driver for Linux. | |
9 | * | |
10 | * The Inventra Controller Driver for Linux is free software; you | |
11 | * can redistribute it and/or modify it under the terms of the GNU | |
12 | * General Public License version 2 as published by the Free Software | |
13 | * Foundation. | |
14 | * | |
15 | * The Inventra Controller Driver for Linux is distributed in | |
16 | * the hope that it will be useful, but WITHOUT ANY WARRANTY; | |
17 | * without even the implied warranty of MERCHANTABILITY or | |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
19 | * License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with The Inventra Controller Driver for Linux ; if not, | |
23 | * write to the Free Software Foundation, Inc., 59 Temple Place, | |
24 | * Suite 330, Boston, MA 02111-1307 USA | |
25 | * | |
26 | */ | |
27 | #include <linux/module.h> | |
28 | #include <linux/kernel.h> | |
29 | #include <linux/sched.h> | |
550a7375 FB |
30 | #include <linux/init.h> |
31 | #include <linux/list.h> | |
550a7375 | 32 | #include <linux/io.h> |
00a0b1d5 | 33 | #include <linux/of.h> |
dc09886b FB |
34 | #include <linux/platform_device.h> |
35 | #include <linux/dma-mapping.h> | |
207b0e1f HH |
36 | #include <linux/pm_runtime.h> |
37 | #include <linux/err.h> | |
12a19b5f | 38 | #include <linux/delay.h> |
c9721438 | 39 | #include <linux/usb/musb-omap.h> |
ca784be3 | 40 | #include <linux/usb/omap_control_usb.h> |
550a7375 | 41 | |
550a7375 FB |
42 | #include "musb_core.h" |
43 | #include "omap2430.h" | |
44 | ||
a3cee12a FB |
45 | struct omap2430_glue { |
46 | struct device *dev; | |
47 | struct platform_device *musb; | |
c9721438 | 48 | enum omap_musb_vbus_id_status status; |
1e5acb8d | 49 | struct work_struct omap_musb_mailbox_work; |
ca784be3 | 50 | struct device *control_otghs; |
a3cee12a | 51 | }; |
c20aebb9 | 52 | #define glue_to_musb(g) platform_get_drvdata(g->musb) |
a3cee12a | 53 | |
4b58ed11 | 54 | static struct omap2430_glue *_glue; |
c9721438 | 55 | |
550a7375 FB |
56 | static struct timer_list musb_idle_timer; |
57 | ||
58 | static void musb_do_idle(unsigned long _musb) | |
59 | { | |
60 | struct musb *musb = (void *)_musb; | |
61 | unsigned long flags; | |
62 | u8 power; | |
63 | u8 devctl; | |
64 | ||
550a7375 FB |
65 | spin_lock_irqsave(&musb->lock, flags); |
66 | ||
84e250ff | 67 | switch (musb->xceiv->state) { |
550a7375 | 68 | case OTG_STATE_A_WAIT_BCON: |
550a7375 FB |
69 | |
70 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
71 | if (devctl & MUSB_DEVCTL_BDEVICE) { | |
84e250ff | 72 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 FB |
73 | MUSB_DEV_MODE(musb); |
74 | } else { | |
84e250ff | 75 | musb->xceiv->state = OTG_STATE_A_IDLE; |
550a7375 FB |
76 | MUSB_HST_MODE(musb); |
77 | } | |
78 | break; | |
550a7375 FB |
79 | case OTG_STATE_A_SUSPEND: |
80 | /* finish RESUME signaling? */ | |
81 | if (musb->port1_status & MUSB_PORT_STAT_RESUME) { | |
82 | power = musb_readb(musb->mregs, MUSB_POWER); | |
83 | power &= ~MUSB_POWER_RESUME; | |
5c8a86e1 | 84 | dev_dbg(musb->controller, "root port resume stopped, power %02x\n", power); |
550a7375 FB |
85 | musb_writeb(musb->mregs, MUSB_POWER, power); |
86 | musb->is_active = 1; | |
87 | musb->port1_status &= ~(USB_PORT_STAT_SUSPEND | |
88 | | MUSB_PORT_STAT_RESUME); | |
89 | musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16; | |
8b125df5 | 90 | usb_hcd_poll_rh_status(musb->hcd); |
550a7375 | 91 | /* NOTE: it might really be A_WAIT_BCON ... */ |
84e250ff | 92 | musb->xceiv->state = OTG_STATE_A_HOST; |
550a7375 FB |
93 | } |
94 | break; | |
550a7375 FB |
95 | case OTG_STATE_A_HOST: |
96 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
97 | if (devctl & MUSB_DEVCTL_BDEVICE) | |
84e250ff | 98 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 | 99 | else |
84e250ff | 100 | musb->xceiv->state = OTG_STATE_A_WAIT_BCON; |
550a7375 FB |
101 | default: |
102 | break; | |
103 | } | |
104 | spin_unlock_irqrestore(&musb->lock, flags); | |
105 | } | |
106 | ||
107 | ||
743411b3 | 108 | static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout) |
550a7375 FB |
109 | { |
110 | unsigned long default_timeout = jiffies + msecs_to_jiffies(3); | |
111 | static unsigned long last_timer; | |
112 | ||
113 | if (timeout == 0) | |
114 | timeout = default_timeout; | |
115 | ||
116 | /* Never idle if active, or when VBUS timeout is not set as host */ | |
117 | if (musb->is_active || ((musb->a_wait_bcon == 0) | |
84e250ff | 118 | && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) { |
5c8a86e1 | 119 | dev_dbg(musb->controller, "%s active, deleting timer\n", |
42c0bf1c | 120 | usb_otg_state_string(musb->xceiv->state)); |
550a7375 FB |
121 | del_timer(&musb_idle_timer); |
122 | last_timer = jiffies; | |
123 | return; | |
124 | } | |
125 | ||
126 | if (time_after(last_timer, timeout)) { | |
127 | if (!timer_pending(&musb_idle_timer)) | |
128 | last_timer = timeout; | |
129 | else { | |
5c8a86e1 | 130 | dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n"); |
550a7375 FB |
131 | return; |
132 | } | |
133 | } | |
134 | last_timer = timeout; | |
135 | ||
5c8a86e1 | 136 | dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n", |
42c0bf1c | 137 | usb_otg_state_string(musb->xceiv->state), |
550a7375 FB |
138 | (unsigned long)jiffies_to_msecs(timeout - jiffies)); |
139 | mod_timer(&musb_idle_timer, timeout); | |
140 | } | |
141 | ||
743411b3 | 142 | static void omap2430_musb_set_vbus(struct musb *musb, int is_on) |
550a7375 | 143 | { |
d445b6da | 144 | struct usb_otg *otg = musb->xceiv->otg; |
550a7375 | 145 | u8 devctl; |
594632ef | 146 | unsigned long timeout = jiffies + msecs_to_jiffies(1000); |
550a7375 FB |
147 | /* HDRC controls CPEN, but beware current surges during device |
148 | * connect. They can trigger transient overcurrent conditions | |
149 | * that must be ignored. | |
150 | */ | |
151 | ||
152 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
153 | ||
154 | if (is_on) { | |
594632ef | 155 | if (musb->xceiv->state == OTG_STATE_A_IDLE) { |
12a19b5f | 156 | int loops = 100; |
594632ef HH |
157 | /* start the session */ |
158 | devctl |= MUSB_DEVCTL_SESSION; | |
159 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
160 | /* | |
161 | * Wait for the musb to set as A device to enable the | |
162 | * VBUS | |
163 | */ | |
164 | while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) { | |
165 | ||
12a19b5f | 166 | mdelay(5); |
594632ef HH |
167 | cpu_relax(); |
168 | ||
12a19b5f N |
169 | if (time_after(jiffies, timeout) |
170 | || loops-- <= 0) { | |
594632ef HH |
171 | dev_err(musb->controller, |
172 | "configured as A device timeout"); | |
594632ef HH |
173 | break; |
174 | } | |
175 | } | |
176 | ||
bb467cf5 | 177 | otg_set_vbus(otg, 1); |
594632ef HH |
178 | } else { |
179 | musb->is_active = 1; | |
d445b6da | 180 | otg->default_a = 1; |
594632ef HH |
181 | musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; |
182 | devctl |= MUSB_DEVCTL_SESSION; | |
183 | MUSB_HST_MODE(musb); | |
184 | } | |
550a7375 FB |
185 | } else { |
186 | musb->is_active = 0; | |
187 | ||
188 | /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and | |
189 | * jumping right to B_IDLE... | |
190 | */ | |
191 | ||
d445b6da | 192 | otg->default_a = 0; |
84e250ff | 193 | musb->xceiv->state = OTG_STATE_B_IDLE; |
550a7375 FB |
194 | devctl &= ~MUSB_DEVCTL_SESSION; |
195 | ||
196 | MUSB_DEV_MODE(musb); | |
197 | } | |
198 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
199 | ||
5c8a86e1 | 200 | dev_dbg(musb->controller, "VBUS %s, devctl %02x " |
550a7375 | 201 | /* otg %3x conf %08x prcm %08x */ "\n", |
42c0bf1c | 202 | usb_otg_state_string(musb->xceiv->state), |
550a7375 FB |
203 | musb_readb(musb->mregs, MUSB_DEVCTL)); |
204 | } | |
550a7375 | 205 | |
743411b3 | 206 | static int omap2430_musb_set_mode(struct musb *musb, u8 musb_mode) |
550a7375 FB |
207 | { |
208 | u8 devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
209 | ||
210 | devctl |= MUSB_DEVCTL_SESSION; | |
211 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
212 | ||
96a274d1 | 213 | return 0; |
550a7375 FB |
214 | } |
215 | ||
c20aebb9 FB |
216 | static inline void omap2430_low_level_exit(struct musb *musb) |
217 | { | |
218 | u32 l; | |
219 | ||
220 | /* in any role */ | |
221 | l = musb_readl(musb->mregs, OTG_FORCESTDBY); | |
222 | l |= ENABLEFORCE; /* enable MSTANDBY */ | |
223 | musb_writel(musb->mregs, OTG_FORCESTDBY, l); | |
c20aebb9 FB |
224 | } |
225 | ||
226 | static inline void omap2430_low_level_init(struct musb *musb) | |
227 | { | |
228 | u32 l; | |
229 | ||
c20aebb9 FB |
230 | l = musb_readl(musb->mregs, OTG_FORCESTDBY); |
231 | l &= ~ENABLEFORCE; /* disable MSTANDBY */ | |
232 | musb_writel(musb->mregs, OTG_FORCESTDBY, l); | |
233 | } | |
234 | ||
c9721438 | 235 | void omap_musb_mailbox(enum omap_musb_vbus_id_status status) |
594632ef | 236 | { |
c9721438 | 237 | struct omap2430_glue *glue = _glue; |
712d8efa | 238 | |
f8c4b0e7 AK |
239 | if (!glue) { |
240 | pr_err("%s: musb core is not yet initialized\n", __func__); | |
241 | return; | |
242 | } | |
243 | glue->status = status; | |
244 | ||
245 | if (!glue_to_musb(glue)) { | |
80ab72e1 | 246 | pr_err("%s: musb core is not yet ready\n", __func__); |
c9721438 KVA |
247 | return; |
248 | } | |
712d8efa | 249 | |
c9721438 | 250 | schedule_work(&glue->omap_musb_mailbox_work); |
712d8efa | 251 | } |
c9721438 | 252 | EXPORT_SYMBOL_GPL(omap_musb_mailbox); |
712d8efa | 253 | |
c9721438 | 254 | static void omap_musb_set_mailbox(struct omap2430_glue *glue) |
712d8efa | 255 | { |
1e5acb8d | 256 | struct musb *musb = glue_to_musb(glue); |
594632ef HH |
257 | struct device *dev = musb->controller; |
258 | struct musb_hdrc_platform_data *pdata = dev->platform_data; | |
259 | struct omap_musb_board_data *data = pdata->board_data; | |
c83a8542 | 260 | struct usb_otg *otg = musb->xceiv->otg; |
594632ef | 261 | |
c9721438 KVA |
262 | switch (glue->status) { |
263 | case OMAP_MUSB_ID_GROUND: | |
264 | dev_dbg(dev, "ID GND\n"); | |
594632ef | 265 | |
c83a8542 KVA |
266 | otg->default_a = true; |
267 | musb->xceiv->state = OTG_STATE_A_IDLE; | |
c9721438 | 268 | musb->xceiv->last_event = USB_EVENT_ID; |
032ec49f | 269 | if (musb->gadget_driver) { |
c9721438 | 270 | pm_runtime_get_sync(dev); |
ca784be3 KVA |
271 | omap_control_usb_set_mode(glue->control_otghs, |
272 | USB_MODE_HOST); | |
70045c57 | 273 | omap2430_musb_set_vbus(musb, 1); |
594632ef HH |
274 | } |
275 | break; | |
276 | ||
c9721438 KVA |
277 | case OMAP_MUSB_VBUS_VALID: |
278 | dev_dbg(dev, "VBUS Connect\n"); | |
594632ef | 279 | |
c83a8542 KVA |
280 | otg->default_a = false; |
281 | musb->xceiv->state = OTG_STATE_B_IDLE; | |
c9721438 | 282 | musb->xceiv->last_event = USB_EVENT_VBUS; |
7acc6197 | 283 | if (musb->gadget_driver) |
c9721438 | 284 | pm_runtime_get_sync(dev); |
ca784be3 | 285 | omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); |
594632ef HH |
286 | break; |
287 | ||
c9721438 KVA |
288 | case OMAP_MUSB_ID_FLOAT: |
289 | case OMAP_MUSB_VBUS_OFF: | |
290 | dev_dbg(dev, "VBUS Disconnect\n"); | |
594632ef | 291 | |
c9721438 | 292 | musb->xceiv->last_event = USB_EVENT_NONE; |
032ec49f | 293 | if (musb->gadget_driver) { |
2c1fe89d | 294 | omap2430_musb_set_vbus(musb, 0); |
032ec49f FB |
295 | pm_runtime_mark_last_busy(dev); |
296 | pm_runtime_put_autosuspend(dev); | |
297 | } | |
7acc6197 | 298 | |
bb467cf5 KVA |
299 | if (data->interface_type == MUSB_INTERFACE_UTMI) |
300 | otg_set_vbus(musb->xceiv->otg, 0); | |
301 | ||
ca784be3 KVA |
302 | omap_control_usb_set_mode(glue->control_otghs, |
303 | USB_MODE_DISCONNECT); | |
594632ef HH |
304 | break; |
305 | default: | |
c9721438 | 306 | dev_dbg(dev, "ID float\n"); |
594632ef | 307 | } |
594632ef HH |
308 | } |
309 | ||
c9721438 KVA |
310 | |
311 | static void omap_musb_mailbox_work(struct work_struct *mailbox_work) | |
312 | { | |
313 | struct omap2430_glue *glue = container_of(mailbox_work, | |
314 | struct omap2430_glue, omap_musb_mailbox_work); | |
315 | omap_musb_set_mailbox(glue); | |
316 | } | |
317 | ||
baef653a PDS |
318 | static irqreturn_t omap2430_musb_interrupt(int irq, void *__hci) |
319 | { | |
320 | unsigned long flags; | |
321 | irqreturn_t retval = IRQ_NONE; | |
322 | struct musb *musb = __hci; | |
323 | ||
324 | spin_lock_irqsave(&musb->lock, flags); | |
325 | ||
326 | musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); | |
327 | musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); | |
328 | musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); | |
329 | ||
330 | if (musb->int_usb || musb->int_tx || musb->int_rx) | |
331 | retval = musb_interrupt(musb); | |
332 | ||
333 | spin_unlock_irqrestore(&musb->lock, flags); | |
334 | ||
335 | return retval; | |
336 | } | |
337 | ||
743411b3 | 338 | static int omap2430_musb_init(struct musb *musb) |
550a7375 | 339 | { |
ad579699 S |
340 | u32 l; |
341 | int status = 0; | |
ea65df57 | 342 | struct device *dev = musb->controller; |
c9721438 | 343 | struct omap2430_glue *glue = dev_get_drvdata(dev->parent); |
ea65df57 HK |
344 | struct musb_hdrc_platform_data *plat = dev->platform_data; |
345 | struct omap_musb_board_data *data = plat->board_data; | |
550a7375 | 346 | |
84e250ff DB |
347 | /* We require some kind of external transceiver, hooked |
348 | * up through ULPI. TWL4030-family PMICs include one, | |
349 | * which needs a driver, drivers aren't always needed. | |
350 | */ | |
b16604f2 KVA |
351 | if (dev->parent->of_node) |
352 | musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent, | |
353 | "usb-phy", 0); | |
354 | else | |
355 | musb->xceiv = devm_usb_get_phy_dev(dev, 0); | |
356 | ||
a90199bb FB |
357 | if (IS_ERR(musb->xceiv)) { |
358 | status = PTR_ERR(musb->xceiv); | |
359 | ||
360 | if (status == -ENXIO) | |
361 | return status; | |
362 | ||
84e250ff | 363 | pr_err("HS USB OTG: no transceiver configured\n"); |
25736e0c | 364 | return -EPROBE_DEFER; |
84e250ff DB |
365 | } |
366 | ||
baef653a PDS |
367 | musb->isr = omap2430_musb_interrupt; |
368 | ||
7acc6197 HH |
369 | status = pm_runtime_get_sync(dev); |
370 | if (status < 0) { | |
ad579699 | 371 | dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status); |
7acc6197 HH |
372 | goto err1; |
373 | } | |
550a7375 | 374 | |
8573e6a6 | 375 | l = musb_readl(musb->mregs, OTG_INTERFSEL); |
de2e1b0c MM |
376 | |
377 | if (data->interface_type == MUSB_INTERFACE_UTMI) { | |
378 | /* OMAP4 uses Internal PHY GS70 which uses UTMI interface */ | |
379 | l &= ~ULPI_12PIN; /* Disable ULPI */ | |
380 | l |= UTMI_8BIT; /* Enable UTMI */ | |
381 | } else { | |
382 | l |= ULPI_12PIN; | |
383 | } | |
384 | ||
8573e6a6 | 385 | musb_writel(musb->mregs, OTG_INTERFSEL, l); |
550a7375 FB |
386 | |
387 | pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, " | |
388 | "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n", | |
8573e6a6 FB |
389 | musb_readl(musb->mregs, OTG_REVISION), |
390 | musb_readl(musb->mregs, OTG_SYSCONFIG), | |
391 | musb_readl(musb->mregs, OTG_SYSSTATUS), | |
392 | musb_readl(musb->mregs, OTG_INTERFSEL), | |
393 | musb_readl(musb->mregs, OTG_SIMENABLE)); | |
550a7375 | 394 | |
550a7375 FB |
395 | setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb); |
396 | ||
c9721438 KVA |
397 | if (glue->status != OMAP_MUSB_UNKNOWN) |
398 | omap_musb_set_mailbox(glue); | |
399 | ||
3bf6db9b KVA |
400 | usb_phy_init(musb->xceiv); |
401 | ||
c04352a5 | 402 | pm_runtime_put_noidle(musb->controller); |
550a7375 | 403 | return 0; |
7acc6197 HH |
404 | |
405 | err1: | |
7acc6197 | 406 | return status; |
550a7375 FB |
407 | } |
408 | ||
002eda13 HH |
409 | static void omap2430_musb_enable(struct musb *musb) |
410 | { | |
411 | u8 devctl; | |
412 | unsigned long timeout = jiffies + msecs_to_jiffies(1000); | |
413 | struct device *dev = musb->controller; | |
c9721438 | 414 | struct omap2430_glue *glue = dev_get_drvdata(dev->parent); |
002eda13 HH |
415 | struct musb_hdrc_platform_data *pdata = dev->platform_data; |
416 | struct omap_musb_board_data *data = pdata->board_data; | |
417 | ||
c9721438 | 418 | switch (glue->status) { |
002eda13 | 419 | |
c9721438 | 420 | case OMAP_MUSB_ID_GROUND: |
ca784be3 | 421 | omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST); |
08dec56e FC |
422 | if (data->interface_type != MUSB_INTERFACE_UTMI) |
423 | break; | |
424 | devctl = musb_readb(musb->mregs, MUSB_DEVCTL); | |
425 | /* start the session */ | |
426 | devctl |= MUSB_DEVCTL_SESSION; | |
427 | musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); | |
428 | while (musb_readb(musb->mregs, MUSB_DEVCTL) & | |
429 | MUSB_DEVCTL_BDEVICE) { | |
430 | cpu_relax(); | |
431 | ||
432 | if (time_after(jiffies, timeout)) { | |
433 | dev_err(dev, "configured as A device timeout"); | |
434 | break; | |
002eda13 HH |
435 | } |
436 | } | |
437 | break; | |
438 | ||
c9721438 | 439 | case OMAP_MUSB_VBUS_VALID: |
ca784be3 | 440 | omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); |
002eda13 HH |
441 | break; |
442 | ||
443 | default: | |
444 | break; | |
445 | } | |
446 | } | |
447 | ||
448 | static void omap2430_musb_disable(struct musb *musb) | |
449 | { | |
c9721438 KVA |
450 | struct device *dev = musb->controller; |
451 | struct omap2430_glue *glue = dev_get_drvdata(dev->parent); | |
452 | ||
ca784be3 KVA |
453 | if (glue->status != OMAP_MUSB_UNKNOWN) |
454 | omap_control_usb_set_mode(glue->control_otghs, | |
455 | USB_MODE_DISCONNECT); | |
550a7375 FB |
456 | } |
457 | ||
743411b3 | 458 | static int omap2430_musb_exit(struct musb *musb) |
550a7375 | 459 | { |
19b9a83e | 460 | del_timer_sync(&musb_idle_timer); |
550a7375 | 461 | |
c20aebb9 | 462 | omap2430_low_level_exit(musb); |
c20aebb9 | 463 | |
550a7375 FB |
464 | return 0; |
465 | } | |
743411b3 | 466 | |
f7ec9437 | 467 | static const struct musb_platform_ops omap2430_ops = { |
743411b3 FB |
468 | .init = omap2430_musb_init, |
469 | .exit = omap2430_musb_exit, | |
470 | ||
743411b3 FB |
471 | .set_mode = omap2430_musb_set_mode, |
472 | .try_idle = omap2430_musb_try_idle, | |
473 | ||
474 | .set_vbus = omap2430_musb_set_vbus, | |
002eda13 HH |
475 | |
476 | .enable = omap2430_musb_enable, | |
477 | .disable = omap2430_musb_disable, | |
743411b3 | 478 | }; |
dc09886b FB |
479 | |
480 | static u64 omap2430_dmamask = DMA_BIT_MASK(32); | |
481 | ||
41ac7b3a | 482 | static int omap2430_probe(struct platform_device *pdev) |
dc09886b | 483 | { |
c1f01be4 | 484 | struct resource musb_resources[3]; |
dc09886b | 485 | struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data; |
00a0b1d5 | 486 | struct omap_musb_board_data *data; |
dc09886b | 487 | struct platform_device *musb; |
a3cee12a | 488 | struct omap2430_glue *glue; |
00a0b1d5 KVA |
489 | struct device_node *np = pdev->dev.of_node; |
490 | struct musb_hdrc_config *config; | |
dc09886b FB |
491 | int ret = -ENOMEM; |
492 | ||
b1183c24 | 493 | glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL); |
a3cee12a FB |
494 | if (!glue) { |
495 | dev_err(&pdev->dev, "failed to allocate glue context\n"); | |
496 | goto err0; | |
497 | } | |
498 | ||
2f771164 | 499 | musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); |
dc09886b FB |
500 | if (!musb) { |
501 | dev_err(&pdev->dev, "failed to allocate musb device\n"); | |
2f771164 | 502 | goto err0; |
dc09886b FB |
503 | } |
504 | ||
505 | musb->dev.parent = &pdev->dev; | |
506 | musb->dev.dma_mask = &omap2430_dmamask; | |
507 | musb->dev.coherent_dma_mask = omap2430_dmamask; | |
508 | ||
a3cee12a FB |
509 | glue->dev = &pdev->dev; |
510 | glue->musb = musb; | |
c9721438 | 511 | glue->status = OMAP_MUSB_UNKNOWN; |
a3cee12a | 512 | |
00a0b1d5 KVA |
513 | if (np) { |
514 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); | |
515 | if (!pdata) { | |
516 | dev_err(&pdev->dev, | |
8b513d0c | 517 | "failed to allocate musb platform data\n"); |
2f771164 | 518 | goto err2; |
00a0b1d5 KVA |
519 | } |
520 | ||
521 | data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); | |
522 | if (!data) { | |
523 | dev_err(&pdev->dev, | |
8df4ce75 | 524 | "failed to allocate musb board data\n"); |
2f771164 | 525 | goto err2; |
00a0b1d5 KVA |
526 | } |
527 | ||
528 | config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL); | |
b37457d8 | 529 | if (!config) { |
00a0b1d5 KVA |
530 | dev_err(&pdev->dev, |
531 | "failed to allocate musb hdrc config\n"); | |
2f771164 | 532 | goto err2; |
00a0b1d5 KVA |
533 | } |
534 | ||
535 | of_property_read_u32(np, "mode", (u32 *)&pdata->mode); | |
eee44da0 | 536 | of_property_read_u32(np, "interface-type", |
00a0b1d5 | 537 | (u32 *)&data->interface_type); |
eee44da0 KVA |
538 | of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); |
539 | of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); | |
00a0b1d5 KVA |
540 | of_property_read_u32(np, "power", (u32 *)&pdata->power); |
541 | config->multipoint = of_property_read_bool(np, "multipoint"); | |
ca784be3 KVA |
542 | pdata->has_mailbox = of_property_read_bool(np, |
543 | "ti,has-mailbox"); | |
00a0b1d5 KVA |
544 | |
545 | pdata->board_data = data; | |
546 | pdata->config = config; | |
547 | } | |
548 | ||
ca784be3 KVA |
549 | if (pdata->has_mailbox) { |
550 | glue->control_otghs = omap_get_control_dev(); | |
551 | if (IS_ERR(glue->control_otghs)) { | |
552 | dev_vdbg(&pdev->dev, "Failed to get control device\n"); | |
4b7e450f WY |
553 | ret = PTR_ERR(glue->control_otghs); |
554 | goto err2; | |
ca784be3 KVA |
555 | } |
556 | } else { | |
557 | glue->control_otghs = ERR_PTR(-ENODEV); | |
558 | } | |
f7ec9437 FB |
559 | pdata->platform_ops = &omap2430_ops; |
560 | ||
a3cee12a | 561 | platform_set_drvdata(pdev, glue); |
dc09886b | 562 | |
c9721438 KVA |
563 | /* |
564 | * REVISIT if we ever have two instances of the wrapper, we will be | |
565 | * in big trouble | |
566 | */ | |
567 | _glue = glue; | |
568 | ||
1e5acb8d KVA |
569 | INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work); |
570 | ||
3a0ddc71 | 571 | memset(musb_resources, 0x00, sizeof(*musb_resources) * |
09fc7d22 FB |
572 | ARRAY_SIZE(musb_resources)); |
573 | ||
574 | musb_resources[0].name = pdev->resource[0].name; | |
575 | musb_resources[0].start = pdev->resource[0].start; | |
576 | musb_resources[0].end = pdev->resource[0].end; | |
577 | musb_resources[0].flags = pdev->resource[0].flags; | |
578 | ||
579 | musb_resources[1].name = pdev->resource[1].name; | |
580 | musb_resources[1].start = pdev->resource[1].start; | |
581 | musb_resources[1].end = pdev->resource[1].end; | |
582 | musb_resources[1].flags = pdev->resource[1].flags; | |
583 | ||
c1f01be4 KVA |
584 | musb_resources[2].name = pdev->resource[2].name; |
585 | musb_resources[2].start = pdev->resource[2].start; | |
586 | musb_resources[2].end = pdev->resource[2].end; | |
587 | musb_resources[2].flags = pdev->resource[2].flags; | |
588 | ||
09fc7d22 FB |
589 | ret = platform_device_add_resources(musb, musb_resources, |
590 | ARRAY_SIZE(musb_resources)); | |
dc09886b FB |
591 | if (ret) { |
592 | dev_err(&pdev->dev, "failed to add resources\n"); | |
65b3d52d | 593 | goto err2; |
dc09886b FB |
594 | } |
595 | ||
596 | ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); | |
597 | if (ret) { | |
598 | dev_err(&pdev->dev, "failed to add platform_data\n"); | |
65b3d52d | 599 | goto err2; |
dc09886b FB |
600 | } |
601 | ||
3006dc8c KVA |
602 | pm_runtime_enable(&pdev->dev); |
603 | ||
dc09886b FB |
604 | ret = platform_device_add(musb); |
605 | if (ret) { | |
606 | dev_err(&pdev->dev, "failed to register musb device\n"); | |
65b3d52d | 607 | goto err2; |
dc09886b FB |
608 | } |
609 | ||
207b0e1f | 610 | return 0; |
03491761 | 611 | |
65b3d52d | 612 | err2: |
b1183c24 | 613 | platform_device_put(musb); |
a3cee12a | 614 | |
dc09886b FB |
615 | err0: |
616 | return ret; | |
617 | } | |
618 | ||
fb4e98ab | 619 | static int omap2430_remove(struct platform_device *pdev) |
dc09886b | 620 | { |
a3cee12a | 621 | struct omap2430_glue *glue = platform_get_drvdata(pdev); |
dc09886b | 622 | |
1e5acb8d | 623 | cancel_work_sync(&glue->omap_musb_mailbox_work); |
f039df58 | 624 | platform_device_unregister(glue->musb); |
dc09886b FB |
625 | |
626 | return 0; | |
627 | } | |
628 | ||
c20aebb9 | 629 | #ifdef CONFIG_PM |
c20aebb9 | 630 | |
7acc6197 | 631 | static int omap2430_runtime_suspend(struct device *dev) |
c20aebb9 FB |
632 | { |
633 | struct omap2430_glue *glue = dev_get_drvdata(dev); | |
634 | struct musb *musb = glue_to_musb(glue); | |
635 | ||
afb76df1 VZ |
636 | if (musb) { |
637 | musb->context.otg_interfsel = musb_readl(musb->mregs, | |
638 | OTG_INTERFSEL); | |
e25bec16 | 639 | |
afb76df1 VZ |
640 | omap2430_low_level_exit(musb); |
641 | usb_phy_set_suspend(musb->xceiv, 1); | |
642 | } | |
c20aebb9 FB |
643 | |
644 | return 0; | |
645 | } | |
646 | ||
7acc6197 | 647 | static int omap2430_runtime_resume(struct device *dev) |
c20aebb9 FB |
648 | { |
649 | struct omap2430_glue *glue = dev_get_drvdata(dev); | |
650 | struct musb *musb = glue_to_musb(glue); | |
c20aebb9 | 651 | |
afb76df1 VZ |
652 | if (musb) { |
653 | omap2430_low_level_init(musb); | |
654 | musb_writel(musb->mregs, OTG_INTERFSEL, | |
655 | musb->context.otg_interfsel); | |
e25bec16 | 656 | |
afb76df1 VZ |
657 | usb_phy_set_suspend(musb->xceiv, 0); |
658 | } | |
c20aebb9 FB |
659 | |
660 | return 0; | |
661 | } | |
662 | ||
663 | static struct dev_pm_ops omap2430_pm_ops = { | |
7acc6197 HH |
664 | .runtime_suspend = omap2430_runtime_suspend, |
665 | .runtime_resume = omap2430_runtime_resume, | |
c20aebb9 FB |
666 | }; |
667 | ||
668 | #define DEV_PM_OPS (&omap2430_pm_ops) | |
669 | #else | |
670 | #define DEV_PM_OPS NULL | |
671 | #endif | |
672 | ||
00a0b1d5 KVA |
673 | #ifdef CONFIG_OF |
674 | static const struct of_device_id omap2430_id_table[] = { | |
675 | { | |
676 | .compatible = "ti,omap4-musb" | |
677 | }, | |
678 | { | |
679 | .compatible = "ti,omap3-musb" | |
680 | }, | |
681 | {}, | |
682 | }; | |
683 | MODULE_DEVICE_TABLE(of, omap2430_id_table); | |
684 | #endif | |
685 | ||
dc09886b | 686 | static struct platform_driver omap2430_driver = { |
e9e8c85e | 687 | .probe = omap2430_probe, |
7690417d | 688 | .remove = omap2430_remove, |
dc09886b FB |
689 | .driver = { |
690 | .name = "musb-omap2430", | |
c20aebb9 | 691 | .pm = DEV_PM_OPS, |
00a0b1d5 | 692 | .of_match_table = of_match_ptr(omap2430_id_table), |
dc09886b FB |
693 | }, |
694 | }; | |
695 | ||
696 | MODULE_DESCRIPTION("OMAP2PLUS MUSB Glue Layer"); | |
697 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); | |
698 | MODULE_LICENSE("GPL v2"); | |
699 | ||
700 | static int __init omap2430_init(void) | |
701 | { | |
e9e8c85e | 702 | return platform_driver_register(&omap2430_driver); |
dc09886b | 703 | } |
c9721438 | 704 | subsys_initcall(omap2430_init); |
dc09886b FB |
705 | |
706 | static void __exit omap2430_exit(void) | |
707 | { | |
708 | platform_driver_unregister(&omap2430_driver); | |
709 | } | |
710 | module_exit(omap2430_exit); |