musb_dsps.c revision 78c289f8769aaefcc52d26ca53c8b2ee545fb332
1/* 2 * Texas Instruments DSPS platforms "glue layer" 3 * 4 * Copyright (C) 2012, by Texas Instruments 5 * 6 * Based on the am35x "glue layer" code. 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 * musb_dsps.c will be a common file for all the TI DSPS platforms 27 * such as dm64x, dm36x, dm35x, da8x, am35x and ti81x. 28 * For now only ti81x is using this and in future davinci.c, am35x.c 29 * da8xx.c would be merged to this file after testing. 30 */ 31 32#include <linux/init.h> 33#include <linux/io.h> 34#include <linux/err.h> 35#include <linux/platform_device.h> 36#include <linux/dma-mapping.h> 37#include <linux/pm_runtime.h> 38#include <linux/module.h> 39#include <linux/usb/nop-usb-xceiv.h> 40 41#include <linux/of.h> 42#include <linux/of_device.h> 43#include <linux/of_address.h> 44 45#include <plat/usb.h> 46 47#include "musb_core.h" 48 49/** 50 * avoid using musb_readx()/musb_writex() as glue layer should not be 51 * dependent on musb core layer symbols. 52 */ 53static inline u8 dsps_readb(const void __iomem *addr, unsigned offset) 54 { return __raw_readb(addr + offset); } 55 56static inline u32 dsps_readl(const void __iomem *addr, unsigned offset) 57 { return __raw_readl(addr + offset); } 58 59static inline void dsps_writeb(void __iomem *addr, unsigned offset, u8 data) 60 { __raw_writeb(data, addr + offset); } 61 62static inline void dsps_writel(void __iomem *addr, unsigned offset, u32 data) 63 { __raw_writel(data, addr + offset); } 64 65/** 66 * DSPS musb wrapper register offset. 67 * FIXME: This should be expanded to have all the wrapper registers from TI DSPS 68 * musb ips. 69 */ 70struct dsps_musb_wrapper { 71 u16 revision; 72 u16 control; 73 u16 status; 74 u16 eoi; 75 u16 epintr_set; 76 u16 epintr_clear; 77 u16 epintr_status; 78 u16 coreintr_set; 79 u16 coreintr_clear; 80 u16 coreintr_status; 81 u16 phy_utmi; 82 u16 mode; 83 84 /* bit positions for control */ 85 unsigned reset:5; 86 87 /* bit positions for interrupt */ 88 unsigned usb_shift:5; 89 u32 usb_mask; 90 u32 usb_bitmap; 91 unsigned drvvbus:5; 92 93 unsigned txep_shift:5; 94 u32 txep_mask; 95 u32 txep_bitmap; 96 97 unsigned rxep_shift:5; 98 u32 rxep_mask; 99 u32 rxep_bitmap; 100 101 /* bit positions for phy_utmi */ 102 unsigned otg_disable:5; 103 104 /* bit positions for mode */ 105 unsigned iddig:5; 106 /* miscellaneous stuff */ 107 u32 musb_core_offset; 108 u8 poll_seconds; 109}; 110 111/** 112 * DSPS glue structure. 113 */ 114struct dsps_glue { 115 struct device *dev; 116 struct platform_device *musb; /* child musb pdev */ 117 const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */ 118 struct timer_list timer; /* otg_workaround timer */ 119}; 120 121/** 122 * dsps_musb_enable - enable interrupts 123 */ 124static void dsps_musb_enable(struct musb *musb) 125{ 126 struct device *dev = musb->controller; 127 struct platform_device *pdev = to_platform_device(dev->parent); 128 struct dsps_glue *glue = platform_get_drvdata(pdev); 129 const struct dsps_musb_wrapper *wrp = glue->wrp; 130 void __iomem *reg_base = musb->ctrl_base; 131 u32 epmask, coremask; 132 133 /* Workaround: setup IRQs through both register sets. */ 134 epmask = ((musb->epmask & wrp->txep_mask) << wrp->txep_shift) | 135 ((musb->epmask & wrp->rxep_mask) << wrp->rxep_shift); 136 coremask = (wrp->usb_bitmap & ~MUSB_INTR_SOF); 137 138 dsps_writel(reg_base, wrp->epintr_set, epmask); 139 dsps_writel(reg_base, wrp->coreintr_set, coremask); 140 /* Force the DRVVBUS IRQ so we can start polling for ID change. */ 141 if (is_otg_enabled(musb)) 142 dsps_writel(reg_base, wrp->coreintr_set, 143 (1 << wrp->drvvbus) << wrp->usb_shift); 144} 145 146/** 147 * dsps_musb_disable - disable HDRC and flush interrupts 148 */ 149static void dsps_musb_disable(struct musb *musb) 150{ 151 struct device *dev = musb->controller; 152 struct platform_device *pdev = to_platform_device(dev->parent); 153 struct dsps_glue *glue = platform_get_drvdata(pdev); 154 const struct dsps_musb_wrapper *wrp = glue->wrp; 155 void __iomem *reg_base = musb->ctrl_base; 156 157 dsps_writel(reg_base, wrp->coreintr_clear, wrp->usb_bitmap); 158 dsps_writel(reg_base, wrp->epintr_clear, 159 wrp->txep_bitmap | wrp->rxep_bitmap); 160 dsps_writeb(musb->mregs, MUSB_DEVCTL, 0); 161 dsps_writel(reg_base, wrp->eoi, 0); 162} 163 164static void otg_timer(unsigned long _musb) 165{ 166 struct musb *musb = (void *)_musb; 167 void __iomem *mregs = musb->mregs; 168 struct device *dev = musb->controller; 169 struct platform_device *pdev = to_platform_device(dev->parent); 170 struct dsps_glue *glue = platform_get_drvdata(pdev); 171 const struct dsps_musb_wrapper *wrp = glue->wrp; 172 u8 devctl; 173 unsigned long flags; 174 175 /* 176 * We poll because DSPS IP's won't expose several OTG-critical 177 * status change events (from the transceiver) otherwise. 178 */ 179 devctl = dsps_readb(mregs, MUSB_DEVCTL); 180 dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl, 181 otg_state_string(musb->xceiv->state)); 182 183 spin_lock_irqsave(&musb->lock, flags); 184 switch (musb->xceiv->state) { 185 case OTG_STATE_A_WAIT_BCON: 186 devctl &= ~MUSB_DEVCTL_SESSION; 187 dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl); 188 189 devctl = dsps_readb(musb->mregs, MUSB_DEVCTL); 190 if (devctl & MUSB_DEVCTL_BDEVICE) { 191 musb->xceiv->state = OTG_STATE_B_IDLE; 192 MUSB_DEV_MODE(musb); 193 } else { 194 musb->xceiv->state = OTG_STATE_A_IDLE; 195 MUSB_HST_MODE(musb); 196 } 197 break; 198 case OTG_STATE_A_WAIT_VFALL: 199 musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; 200 dsps_writel(musb->ctrl_base, wrp->coreintr_set, 201 MUSB_INTR_VBUSERROR << wrp->usb_shift); 202 break; 203 case OTG_STATE_B_IDLE: 204 if (!is_peripheral_enabled(musb)) 205 break; 206 207 devctl = dsps_readb(mregs, MUSB_DEVCTL); 208 if (devctl & MUSB_DEVCTL_BDEVICE) 209 mod_timer(&glue->timer, 210 jiffies + wrp->poll_seconds * HZ); 211 else 212 musb->xceiv->state = OTG_STATE_A_IDLE; 213 break; 214 default: 215 break; 216 } 217 spin_unlock_irqrestore(&musb->lock, flags); 218} 219 220static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) 221{ 222 struct device *dev = musb->controller; 223 struct platform_device *pdev = to_platform_device(dev->parent); 224 struct dsps_glue *glue = platform_get_drvdata(pdev); 225 static unsigned long last_timer; 226 227 if (!is_otg_enabled(musb)) 228 return; 229 230 if (timeout == 0) 231 timeout = jiffies + msecs_to_jiffies(3); 232 233 /* Never idle if active, or when VBUS timeout is not set as host */ 234 if (musb->is_active || (musb->a_wait_bcon == 0 && 235 musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { 236 dev_dbg(musb->controller, "%s active, deleting timer\n", 237 otg_state_string(musb->xceiv->state)); 238 del_timer(&glue->timer); 239 last_timer = jiffies; 240 return; 241 } 242 243 if (time_after(last_timer, timeout) && timer_pending(&glue->timer)) { 244 dev_dbg(musb->controller, 245 "Longer idle timer already pending, ignoring...\n"); 246 return; 247 } 248 last_timer = timeout; 249 250 dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", 251 otg_state_string(musb->xceiv->state), 252 jiffies_to_msecs(timeout - jiffies)); 253 mod_timer(&glue->timer, timeout); 254} 255 256static irqreturn_t dsps_interrupt(int irq, void *hci) 257{ 258 struct musb *musb = hci; 259 void __iomem *reg_base = musb->ctrl_base; 260 struct device *dev = musb->controller; 261 struct platform_device *pdev = to_platform_device(dev->parent); 262 struct dsps_glue *glue = platform_get_drvdata(pdev); 263 const struct dsps_musb_wrapper *wrp = glue->wrp; 264 unsigned long flags; 265 irqreturn_t ret = IRQ_NONE; 266 u32 epintr, usbintr; 267 268 spin_lock_irqsave(&musb->lock, flags); 269 270 /* Get endpoint interrupts */ 271 epintr = dsps_readl(reg_base, wrp->epintr_status); 272 musb->int_rx = (epintr & wrp->rxep_bitmap) >> wrp->rxep_shift; 273 musb->int_tx = (epintr & wrp->txep_bitmap) >> wrp->txep_shift; 274 275 if (epintr) 276 dsps_writel(reg_base, wrp->epintr_status, epintr); 277 278 /* Get usb core interrupts */ 279 usbintr = dsps_readl(reg_base, wrp->coreintr_status); 280 if (!usbintr && !epintr) 281 goto eoi; 282 283 musb->int_usb = (usbintr & wrp->usb_bitmap) >> wrp->usb_shift; 284 if (usbintr) 285 dsps_writel(reg_base, wrp->coreintr_status, usbintr); 286 287 dev_dbg(musb->controller, "usbintr (%x) epintr(%x)\n", 288 usbintr, epintr); 289 /* 290 * DRVVBUS IRQs are the only proxy we have (a very poor one!) for 291 * DSPS IP's missing ID change IRQ. We need an ID change IRQ to 292 * switch appropriately between halves of the OTG state machine. 293 * Managing DEVCTL.SESSION per Mentor docs requires that we know its 294 * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set. 295 * Also, DRVVBUS pulses for SRP (but not at 5V) ... 296 */ 297 if ((usbintr & MUSB_INTR_BABBLE) && is_host_enabled(musb)) 298 pr_info("CAUTION: musb: Babble Interrupt Occured\n"); 299 300 if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) { 301 int drvvbus = dsps_readl(reg_base, wrp->status); 302 void __iomem *mregs = musb->mregs; 303 u8 devctl = dsps_readb(mregs, MUSB_DEVCTL); 304 int err; 305 306 err = is_host_enabled(musb) && (musb->int_usb & 307 MUSB_INTR_VBUSERROR); 308 if (err) { 309 /* 310 * The Mentor core doesn't debounce VBUS as needed 311 * to cope with device connect current spikes. This 312 * means it's not uncommon for bus-powered devices 313 * to get VBUS errors during enumeration. 314 * 315 * This is a workaround, but newer RTL from Mentor 316 * seems to allow a better one: "re"-starting sessions 317 * without waiting for VBUS to stop registering in 318 * devctl. 319 */ 320 musb->int_usb &= ~MUSB_INTR_VBUSERROR; 321 musb->xceiv->state = OTG_STATE_A_WAIT_VFALL; 322 mod_timer(&glue->timer, 323 jiffies + wrp->poll_seconds * HZ); 324 WARNING("VBUS error workaround (delay coming)\n"); 325 } else if (is_host_enabled(musb) && drvvbus) { 326 musb->is_active = 1; 327 MUSB_HST_MODE(musb); 328 musb->xceiv->otg->default_a = 1; 329 musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; 330 del_timer(&glue->timer); 331 } else { 332 musb->is_active = 0; 333 MUSB_DEV_MODE(musb); 334 musb->xceiv->otg->default_a = 0; 335 musb->xceiv->state = OTG_STATE_B_IDLE; 336 } 337 338 /* NOTE: this must complete power-on within 100 ms. */ 339 dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", 340 drvvbus ? "on" : "off", 341 otg_state_string(musb->xceiv->state), 342 err ? " ERROR" : "", 343 devctl); 344 ret = IRQ_HANDLED; 345 } 346 347 if (musb->int_tx || musb->int_rx || musb->int_usb) 348 ret |= musb_interrupt(musb); 349 350 eoi: 351 /* EOI needs to be written for the IRQ to be re-asserted. */ 352 if (ret == IRQ_HANDLED || epintr || usbintr) 353 dsps_writel(reg_base, wrp->eoi, 1); 354 355 /* Poll for ID change */ 356 if (is_otg_enabled(musb) && musb->xceiv->state == OTG_STATE_B_IDLE) 357 mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); 358 359 spin_unlock_irqrestore(&musb->lock, flags); 360 361 return ret; 362} 363 364static int dsps_musb_init(struct musb *musb) 365{ 366 struct device *dev = musb->controller; 367 struct musb_hdrc_platform_data *plat = dev->platform_data; 368 struct platform_device *pdev = to_platform_device(dev->parent); 369 struct dsps_glue *glue = platform_get_drvdata(pdev); 370 const struct dsps_musb_wrapper *wrp = glue->wrp; 371 struct omap_musb_board_data *data = plat->board_data; 372 void __iomem *reg_base = musb->ctrl_base; 373 u32 rev, val; 374 int status; 375 376 /* mentor core register starts at offset of 0x400 from musb base */ 377 musb->mregs += wrp->musb_core_offset; 378 379 /* NOP driver needs change if supporting dual instance */ 380 usb_nop_xceiv_register(); 381 musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); 382 if (IS_ERR_OR_NULL(musb->xceiv)) 383 return -ENODEV; 384 385 /* Returns zero if e.g. not clocked */ 386 rev = dsps_readl(reg_base, wrp->revision); 387 if (!rev) { 388 status = -ENODEV; 389 goto err0; 390 } 391 392 if (is_host_enabled(musb)) 393 setup_timer(&glue->timer, otg_timer, (unsigned long) musb); 394 395 /* Reset the musb */ 396 dsps_writel(reg_base, wrp->control, (1 << wrp->reset)); 397 398 /* Start the on-chip PHY and its PLL. */ 399 if (data->set_phy_power) 400 data->set_phy_power(1); 401 402 musb->isr = dsps_interrupt; 403 404 /* reset the otgdisable bit, needed for host mode to work */ 405 val = dsps_readl(reg_base, wrp->phy_utmi); 406 val &= ~(1 << wrp->otg_disable); 407 dsps_writel(musb->ctrl_base, wrp->phy_utmi, val); 408 409 /* clear level interrupt */ 410 dsps_writel(reg_base, wrp->eoi, 0); 411 412 return 0; 413err0: 414 usb_put_phy(musb->xceiv); 415 usb_nop_xceiv_unregister(); 416 return status; 417} 418 419static int dsps_musb_exit(struct musb *musb) 420{ 421 struct device *dev = musb->controller; 422 struct musb_hdrc_platform_data *plat = dev->platform_data; 423 struct omap_musb_board_data *data = plat->board_data; 424 struct platform_device *pdev = to_platform_device(dev->parent); 425 struct dsps_glue *glue = platform_get_drvdata(pdev); 426 427 if (is_host_enabled(musb)) 428 del_timer_sync(&glue->timer); 429 430 /* Shutdown the on-chip PHY and its PLL. */ 431 if (data->set_phy_power) 432 data->set_phy_power(0); 433 434 /* NOP driver needs change if supporting dual instance */ 435 usb_put_phy(musb->xceiv); 436 usb_nop_xceiv_unregister(); 437 438 return 0; 439} 440 441static struct musb_platform_ops dsps_ops = { 442 .init = dsps_musb_init, 443 .exit = dsps_musb_exit, 444 445 .enable = dsps_musb_enable, 446 .disable = dsps_musb_disable, 447 448 .try_idle = dsps_musb_try_idle, 449}; 450 451static u64 musb_dmamask = DMA_BIT_MASK(32); 452 453static int __devinit dsps_create_musb_pdev(struct dsps_glue *glue, u8 id) 454{ 455 struct device *dev = glue->dev; 456 struct platform_device *pdev = to_platform_device(dev); 457 struct musb_hdrc_platform_data *pdata = dev->platform_data; 458 struct platform_device *musb; 459 struct resource *res; 460 struct resource resources[2]; 461 char res_name[10]; 462 int ret; 463 464 /* get memory resource */ 465 sprintf(res_name, "musb%d", id); 466 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name); 467 if (!res) { 468 dev_err(dev, "%s get mem resource failed\n", res_name); 469 ret = -ENODEV; 470 goto err0; 471 } 472 res->parent = NULL; 473 resources[0] = *res; 474 475 /* get irq resource */ 476 sprintf(res_name, "musb%d-irq", id); 477 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name); 478 if (!res) { 479 dev_err(dev, "%s get irq resource failed\n", res_name); 480 ret = -ENODEV; 481 goto err0; 482 } 483 strcpy((u8 *)res->name, "mc"); 484 res->parent = NULL; 485 resources[1] = *res; 486 487 /* allocate the child platform device */ 488 musb = platform_device_alloc("musb-hdrc", -1); 489 if (!musb) { 490 dev_err(dev, "failed to allocate musb device\n"); 491 ret = -ENOMEM; 492 goto err0; 493 } 494 495 musb->dev.parent = dev; 496 musb->dev.dma_mask = &musb_dmamask; 497 musb->dev.coherent_dma_mask = musb_dmamask; 498 499 glue->musb = musb; 500 501 pdata->platform_ops = &dsps_ops; 502 503 ret = platform_device_add_resources(musb, resources, 2); 504 if (ret) { 505 dev_err(dev, "failed to add resources\n"); 506 goto err1; 507 } 508 509 ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); 510 if (ret) { 511 dev_err(dev, "failed to add platform_data\n"); 512 goto err1; 513 } 514 515 ret = platform_device_add(musb); 516 if (ret) { 517 dev_err(dev, "failed to register musb device\n"); 518 goto err1; 519 } 520 521 return 0; 522 523err1: 524 platform_device_put(musb); 525err0: 526 return ret; 527} 528 529static void __devexit dsps_delete_musb_pdev(struct dsps_glue *glue) 530{ 531 platform_device_del(glue->musb); 532 platform_device_put(glue->musb); 533} 534 535static int __devinit dsps_probe(struct platform_device *pdev) 536{ 537 const struct platform_device_id *id = platform_get_device_id(pdev); 538 const struct dsps_musb_wrapper *wrp = 539 (struct dsps_musb_wrapper *)id->driver_data; 540 struct dsps_glue *glue; 541 struct resource *iomem; 542 int ret; 543 544 /* allocate glue */ 545 glue = kzalloc(sizeof(*glue), GFP_KERNEL); 546 if (!glue) { 547 dev_err(&pdev->dev, "unable to allocate glue memory\n"); 548 ret = -ENOMEM; 549 goto err0; 550 } 551 552 /* get memory resource */ 553 iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 554 if (!iomem) { 555 dev_err(&pdev->dev, "failed to get usbss mem resourse\n"); 556 ret = -ENODEV; 557 goto err1; 558 } 559 560 glue->dev = &pdev->dev; 561 562 glue->wrp = kmemdup(wrp, sizeof(*wrp), GFP_KERNEL); 563 if (!glue->wrp) { 564 dev_err(&pdev->dev, "failed to duplicate wrapper struct memory\n"); 565 ret = -ENOMEM; 566 goto err1; 567 } 568 platform_set_drvdata(pdev, glue); 569 570 /* create the child platform device for first instances of musb */ 571 ret = dsps_create_musb_pdev(glue, 0); 572 if (ret != 0) { 573 dev_err(&pdev->dev, "failed to create child pdev\n"); 574 goto err2; 575 } 576 577 /* enable the usbss clocks */ 578 pm_runtime_enable(&pdev->dev); 579 580 ret = pm_runtime_get_sync(&pdev->dev); 581 if (ret < 0) { 582 dev_err(&pdev->dev, "pm_runtime_get_sync FAILED"); 583 goto err3; 584 } 585 586 return 0; 587 588err3: 589 pm_runtime_disable(&pdev->dev); 590err2: 591 kfree(glue->wrp); 592err1: 593 kfree(glue); 594err0: 595 return ret; 596} 597static int __devexit dsps_remove(struct platform_device *pdev) 598{ 599 struct dsps_glue *glue = platform_get_drvdata(pdev); 600 601 /* delete the child platform device */ 602 dsps_delete_musb_pdev(glue); 603 604 /* disable usbss clocks */ 605 pm_runtime_put(&pdev->dev); 606 pm_runtime_disable(&pdev->dev); 607 kfree(glue->wrp); 608 kfree(glue); 609 return 0; 610} 611 612#ifdef CONFIG_PM_SLEEP 613static int dsps_suspend(struct device *dev) 614{ 615 struct musb_hdrc_platform_data *plat = dev->platform_data; 616 struct omap_musb_board_data *data = plat->board_data; 617 618 /* Shutdown the on-chip PHY and its PLL. */ 619 if (data->set_phy_power) 620 data->set_phy_power(0); 621 622 return 0; 623} 624 625static int dsps_resume(struct device *dev) 626{ 627 struct musb_hdrc_platform_data *plat = dev->platform_data; 628 struct omap_musb_board_data *data = plat->board_data; 629 630 /* Start the on-chip PHY and its PLL. */ 631 if (data->set_phy_power) 632 data->set_phy_power(1); 633 634 return 0; 635} 636#endif 637 638static SIMPLE_DEV_PM_OPS(dsps_pm_ops, dsps_suspend, dsps_resume); 639 640static const struct dsps_musb_wrapper ti81xx_driver_data __devinitconst = { 641 .revision = 0x00, 642 .control = 0x14, 643 .status = 0x18, 644 .eoi = 0x24, 645 .epintr_set = 0x38, 646 .epintr_clear = 0x40, 647 .epintr_status = 0x30, 648 .coreintr_set = 0x3c, 649 .coreintr_clear = 0x44, 650 .coreintr_status = 0x34, 651 .phy_utmi = 0xe0, 652 .mode = 0xe8, 653 .reset = 0, 654 .otg_disable = 21, 655 .iddig = 8, 656 .usb_shift = 0, 657 .usb_mask = 0x1ff, 658 .usb_bitmap = (0x1ff << 0), 659 .drvvbus = 8, 660 .txep_shift = 0, 661 .txep_mask = 0xffff, 662 .txep_bitmap = (0xffff << 0), 663 .rxep_shift = 16, 664 .rxep_mask = 0xfffe, 665 .rxep_bitmap = (0xfffe << 16), 666 .musb_core_offset = 0x400, 667 .poll_seconds = 2, 668}; 669 670static const struct platform_device_id musb_dsps_id_table[] __devinitconst = { 671 { 672 .name = "musb-ti81xx", 673 .driver_data = (kernel_ulong_t) &ti81xx_driver_data, 674 }, 675 { }, /* Terminating Entry */ 676}; 677MODULE_DEVICE_TABLE(platform, musb_dsps_id_table); 678 679static const struct of_device_id musb_dsps_of_match[] __devinitconst = { 680 { .compatible = "musb-ti81xx", }, 681 { .compatible = "ti,ti81xx-musb", }, 682 { .compatible = "ti,am335x-musb", }, 683 { }, 684}; 685MODULE_DEVICE_TABLE(of, musb_dsps_of_match); 686 687static struct platform_driver dsps_usbss_driver = { 688 .probe = dsps_probe, 689 .remove = __devexit_p(dsps_remove), 690 .driver = { 691 .name = "musb-dsps", 692 .pm = &dsps_pm_ops, 693 .of_match_table = musb_dsps_of_match, 694 }, 695 .id_table = musb_dsps_id_table, 696}; 697 698MODULE_DESCRIPTION("TI DSPS MUSB Glue Layer"); 699MODULE_AUTHOR("Ravi B <ravibabu@ti.com>"); 700MODULE_AUTHOR("Ajay Kumar Gupta <ajay.gupta@ti.com>"); 701MODULE_LICENSE("GPL v2"); 702 703static int __init dsps_init(void) 704{ 705 return platform_driver_register(&dsps_usbss_driver); 706} 707subsys_initcall(dsps_init); 708 709static void __exit dsps_exit(void) 710{ 711 platform_driver_unregister(&dsps_usbss_driver); 712} 713module_exit(dsps_exit); 714