1 /* 2 * Copyright 2005-2009 MontaVista Software, Inc. 3 * Copyright 2008 Freescale Semiconductor, Inc. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License as published by the 7 * Free Software Foundation; either version 2 of the License, or (at your 8 * option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software Foundation, 17 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 18 * 19 * Ported to 834x by Randy Vinson <rvinson@mvista.com> using code provided 20 * by Hunter Wu. 21 * Power Management support by Dave Liu <daveliu@freescale.com>, 22 * Jerry Huang <Chang-Ming.Huang@freescale.com> and 23 * Anton Vorontsov <avorontsov@ru.mvista.com>. 24 */ 25 26 #include <linux/kernel.h> 27 #include <linux/types.h> 28 #include <linux/delay.h> 29 #include <linux/pm.h> 30 #include <linux/platform_device.h> 31 #include <linux/fsl_devices.h> 32 33 #include "ehci-fsl.h" 34 35 /* configure so an HC device and id are always provided */ 36 /* always called with process context; sleeping is OK */ 37 38 /** 39 * usb_hcd_fsl_probe - initialize FSL-based HCDs 40 * @drvier: Driver to be used for this HCD 41 * @pdev: USB Host Controller being probed 42 * Context: !in_interrupt() 43 * 44 * Allocates basic resources for this USB host controller. 45 * 46 */ 47 static int usb_hcd_fsl_probe(const struct hc_driver *driver, 48 struct platform_device *pdev) 49 { 50 struct fsl_usb2_platform_data *pdata; 51 struct usb_hcd *hcd; 52 struct resource *res; 53 int irq; 54 int retval; 55 56 pr_debug("initializing FSL-SOC USB Controller\n"); 57 58 /* Need platform data for setup */ 59 pdata = (struct fsl_usb2_platform_data *)pdev->dev.platform_data; 60 if (!pdata) { 61 dev_err(&pdev->dev, 62 "No platform data for %s.\n", dev_name(&pdev->dev)); 63 return -ENODEV; 64 } 65 66 /* 67 * This is a host mode driver, verify that we're supposed to be 68 * in host mode. 69 */ 70 if (!((pdata->operating_mode == FSL_USB2_DR_HOST) || 71 (pdata->operating_mode == FSL_USB2_MPH_HOST) || 72 (pdata->operating_mode == FSL_USB2_DR_OTG))) { 73 dev_err(&pdev->dev, 74 "Non Host Mode configured for %s. Wrong driver linked.\n", 75 dev_name(&pdev->dev)); 76 return -ENODEV; 77 } 78 79 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); 80 if (!res) { 81 dev_err(&pdev->dev, 82 "Found HC with no IRQ. Check %s setup!\n", 83 dev_name(&pdev->dev)); 84 return -ENODEV; 85 } 86 irq = res->start; 87 88 hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); 89 if (!hcd) { 90 retval = -ENOMEM; 91 goto err1; 92 } 93 94 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 95 if (!res) { 96 dev_err(&pdev->dev, 97 "Found HC with no register addr. Check %s setup!\n", 98 dev_name(&pdev->dev)); 99 retval = -ENODEV; 100 goto err2; 101 } 102 hcd->rsrc_start = res->start; 103 hcd->rsrc_len = resource_size(res); 104 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, 105 driver->description)) { 106 dev_dbg(&pdev->dev, "controller already in use\n"); 107 retval = -EBUSY; 108 goto err2; 109 } 110 hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); 111 112 if (hcd->regs == NULL) { 113 dev_dbg(&pdev->dev, "error mapping memory\n"); 114 retval = -EFAULT; 115 goto err3; 116 } 117 118 pdata->regs = hcd->regs; 119 120 if (pdata->power_budget) 121 hcd->power_budget = pdata->power_budget; 122 123 /* 124 * do platform specific init: check the clock, grab/config pins, etc. 125 */ 126 if (pdata->init && pdata->init(pdev)) { 127 retval = -ENODEV; 128 goto err3; 129 } 130 131 /* Enable USB controller, 83xx or 8536 */ 132 if (pdata->have_sysif_regs) 133 setbits32(hcd->regs + FSL_SOC_USB_CTRL, 0x4); 134 135 /* Don't need to set host mode here. It will be done by tdi_reset() */ 136 137 retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED); 138 if (retval != 0) 139 goto err4; 140 141 #ifdef CONFIG_USB_OTG 142 if (pdata->operating_mode == FSL_USB2_DR_OTG) { 143 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 144 145 ehci->transceiver = otg_get_transceiver(); 146 dev_dbg(&pdev->dev, "hcd=0x%p ehci=0x%p, transceiver=0x%p\n", 147 hcd, ehci, ehci->transceiver); 148 149 if (ehci->transceiver) { 150 retval = otg_set_host(ehci->transceiver, 151 &ehci_to_hcd(ehci)->self); 152 if (retval) { 153 if (ehci->transceiver) 154 put_device(ehci->transceiver->dev); 155 goto err4; 156 } 157 } else { 158 dev_err(&pdev->dev, "can't find transceiver\n"); 159 retval = -ENODEV; 160 goto err4; 161 } 162 } 163 #endif 164 return retval; 165 166 err4: 167 iounmap(hcd->regs); 168 err3: 169 release_mem_region(hcd->rsrc_start, hcd->rsrc_len); 170 err2: 171 usb_put_hcd(hcd); 172 err1: 173 dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval); 174 if (pdata->exit) 175 pdata->exit(pdev); 176 return retval; 177 } 178 179 /* may be called without controller electrically present */ 180 /* may be called with controller, bus, and devices active */ 181 182 /** 183 * usb_hcd_fsl_remove - shutdown processing for FSL-based HCDs 184 * @dev: USB Host Controller being removed 185 * Context: !in_interrupt() 186 * 187 * Reverses the effect of usb_hcd_fsl_probe(). 188 * 189 */ 190 static void usb_hcd_fsl_remove(struct usb_hcd *hcd, 191 struct platform_device *pdev) 192 { 193 struct fsl_usb2_platform_data *pdata = pdev->dev.platform_data; 194 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 195 196 if (ehci->transceiver) { 197 otg_set_host(ehci->transceiver, NULL); 198 put_device(ehci->transceiver->dev); 199 } 200 201 usb_remove_hcd(hcd); 202 203 /* 204 * do platform specific un-initialization: 205 * release iomux pins, disable clock, etc. 206 */ 207 if (pdata->exit) 208 pdata->exit(pdev); 209 iounmap(hcd->regs); 210 release_mem_region(hcd->rsrc_start, hcd->rsrc_len); 211 usb_put_hcd(hcd); 212 } 213 214 static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, 215 enum fsl_usb2_phy_modes phy_mode, 216 unsigned int port_offset) 217 { 218 u32 portsc; 219 220 portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); 221 portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW); 222 223 switch (phy_mode) { 224 case FSL_USB2_PHY_ULPI: 225 portsc |= PORT_PTS_ULPI; 226 break; 227 case FSL_USB2_PHY_SERIAL: 228 portsc |= PORT_PTS_SERIAL; 229 break; 230 case FSL_USB2_PHY_UTMI_WIDE: 231 portsc |= PORT_PTS_PTW; 232 /* fall through */ 233 case FSL_USB2_PHY_UTMI: 234 portsc |= PORT_PTS_UTMI; 235 break; 236 case FSL_USB2_PHY_NONE: 237 break; 238 } 239 ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); 240 } 241 242 static void ehci_fsl_usb_setup(struct ehci_hcd *ehci) 243 { 244 struct usb_hcd *hcd = ehci_to_hcd(ehci); 245 struct fsl_usb2_platform_data *pdata; 246 void __iomem *non_ehci = hcd->regs; 247 u32 temp; 248 249 pdata = hcd->self.controller->platform_data; 250 251 /* Enable PHY interface in the control reg. */ 252 if (pdata->have_sysif_regs) { 253 temp = in_be32(non_ehci + FSL_SOC_USB_CTRL); 254 out_be32(non_ehci + FSL_SOC_USB_CTRL, temp | 0x00000004); 255 out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0000001b); 256 } 257 258 #if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE) 259 /* 260 * Turn on cache snooping hardware, since some PowerPC platforms 261 * wholly rely on hardware to deal with cache coherent 262 */ 263 264 /* Setup Snooping for all the 4GB space */ 265 /* SNOOP1 starts from 0x0, size 2G */ 266 out_be32(non_ehci + FSL_SOC_USB_SNOOP1, 0x0 | SNOOP_SIZE_2GB); 267 /* SNOOP2 starts from 0x80000000, size 2G */ 268 out_be32(non_ehci + FSL_SOC_USB_SNOOP2, 0x80000000 | SNOOP_SIZE_2GB); 269 #endif 270 271 if ((pdata->operating_mode == FSL_USB2_DR_HOST) || 272 (pdata->operating_mode == FSL_USB2_DR_OTG)) 273 ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0); 274 275 if (pdata->operating_mode == FSL_USB2_MPH_HOST) { 276 unsigned int chip, rev, svr; 277 278 svr = mfspr(SPRN_SVR); 279 chip = svr >> 16; 280 rev = (svr >> 4) & 0xf; 281 282 /* Deal with USB Erratum #14 on MPC834x Rev 1.0 & 1.1 chips */ 283 if ((rev == 1) && (chip >= 0x8050) && (chip <= 0x8055)) 284 ehci->has_fsl_port_bug = 1; 285 286 if (pdata->port_enables & FSL_USB2_PORT0_ENABLED) 287 ehci_fsl_setup_phy(ehci, pdata->phy_mode, 0); 288 if (pdata->port_enables & FSL_USB2_PORT1_ENABLED) 289 ehci_fsl_setup_phy(ehci, pdata->phy_mode, 1); 290 } 291 292 if (pdata->have_sysif_regs) { 293 #ifdef CONFIG_PPC_85xx 294 out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x00000008); 295 out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000080); 296 #else 297 out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); 298 out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); 299 #endif 300 out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); 301 } 302 } 303 304 /* called after powerup, by probe or system-pm "wakeup" */ 305 static int ehci_fsl_reinit(struct ehci_hcd *ehci) 306 { 307 ehci_fsl_usb_setup(ehci); 308 ehci_port_power(ehci, 0); 309 310 return 0; 311 } 312 313 /* called during probe() after chip reset completes */ 314 static int ehci_fsl_setup(struct usb_hcd *hcd) 315 { 316 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 317 int retval; 318 struct fsl_usb2_platform_data *pdata; 319 320 pdata = hcd->self.controller->platform_data; 321 ehci->big_endian_desc = pdata->big_endian_desc; 322 ehci->big_endian_mmio = pdata->big_endian_mmio; 323 324 /* EHCI registers start at offset 0x100 */ 325 ehci->caps = hcd->regs + 0x100; 326 ehci->regs = hcd->regs + 0x100 + 327 HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase)); 328 dbg_hcs_params(ehci, "reset"); 329 dbg_hcc_params(ehci, "reset"); 330 331 /* cache this readonly data; minimize chip reads */ 332 ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); 333 334 hcd->has_tt = 1; 335 336 retval = ehci_halt(ehci); 337 if (retval) 338 return retval; 339 340 /* data structure init */ 341 retval = ehci_init(hcd); 342 if (retval) 343 return retval; 344 345 ehci->sbrn = 0x20; 346 347 ehci_reset(ehci); 348 349 retval = ehci_fsl_reinit(ehci); 350 return retval; 351 } 352 353 struct ehci_fsl { 354 struct ehci_hcd ehci; 355 356 #ifdef CONFIG_PM 357 /* Saved USB PHY settings, need to restore after deep sleep. */ 358 u32 usb_ctrl; 359 #endif 360 }; 361 362 #ifdef CONFIG_PM 363 364 #ifdef CONFIG_PPC_MPC512x 365 static int ehci_fsl_mpc512x_drv_suspend(struct device *dev) 366 { 367 struct usb_hcd *hcd = dev_get_drvdata(dev); 368 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 369 struct fsl_usb2_platform_data *pdata = dev->platform_data; 370 u32 tmp; 371 372 #ifdef DEBUG 373 u32 mode = ehci_readl(ehci, hcd->regs + FSL_SOC_USB_USBMODE); 374 mode &= USBMODE_CM_MASK; 375 tmp = ehci_readl(ehci, hcd->regs + 0x140); /* usbcmd */ 376 377 dev_dbg(dev, "suspend=%d already_suspended=%d " 378 "mode=%d usbcmd %08x\n", pdata->suspended, 379 pdata->already_suspended, mode, tmp); 380 #endif 381 382 /* 383 * If the controller is already suspended, then this must be a 384 * PM suspend. Remember this fact, so that we will leave the 385 * controller suspended at PM resume time. 386 */ 387 if (pdata->suspended) { 388 dev_dbg(dev, "already suspended, leaving early\n"); 389 pdata->already_suspended = 1; 390 return 0; 391 } 392 393 dev_dbg(dev, "suspending...\n"); 394 395 hcd->state = HC_STATE_SUSPENDED; 396 dev->power.power_state = PMSG_SUSPEND; 397 398 /* ignore non-host interrupts */ 399 clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); 400 401 /* stop the controller */ 402 tmp = ehci_readl(ehci, &ehci->regs->command); 403 tmp &= ~CMD_RUN; 404 ehci_writel(ehci, tmp, &ehci->regs->command); 405 406 /* save EHCI registers */ 407 pdata->pm_command = ehci_readl(ehci, &ehci->regs->command); 408 pdata->pm_command &= ~CMD_RUN; 409 pdata->pm_status = ehci_readl(ehci, &ehci->regs->status); 410 pdata->pm_intr_enable = ehci_readl(ehci, &ehci->regs->intr_enable); 411 pdata->pm_frame_index = ehci_readl(ehci, &ehci->regs->frame_index); 412 pdata->pm_segment = ehci_readl(ehci, &ehci->regs->segment); 413 pdata->pm_frame_list = ehci_readl(ehci, &ehci->regs->frame_list); 414 pdata->pm_async_next = ehci_readl(ehci, &ehci->regs->async_next); 415 pdata->pm_configured_flag = 416 ehci_readl(ehci, &ehci->regs->configured_flag); 417 pdata->pm_portsc = ehci_readl(ehci, &ehci->regs->port_status[0]); 418 pdata->pm_usbgenctrl = ehci_readl(ehci, 419 hcd->regs + FSL_SOC_USB_USBGENCTRL); 420 421 /* clear the W1C bits */ 422 pdata->pm_portsc &= cpu_to_hc32(ehci, ~PORT_RWC_BITS); 423 424 pdata->suspended = 1; 425 426 /* clear PP to cut power to the port */ 427 tmp = ehci_readl(ehci, &ehci->regs->port_status[0]); 428 tmp &= ~PORT_POWER; 429 ehci_writel(ehci, tmp, &ehci->regs->port_status[0]); 430 431 return 0; 432 } 433 434 static int ehci_fsl_mpc512x_drv_resume(struct device *dev) 435 { 436 struct usb_hcd *hcd = dev_get_drvdata(dev); 437 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 438 struct fsl_usb2_platform_data *pdata = dev->platform_data; 439 u32 tmp; 440 441 dev_dbg(dev, "suspend=%d already_suspended=%d\n", 442 pdata->suspended, pdata->already_suspended); 443 444 /* 445 * If the controller was already suspended at suspend time, 446 * then don't resume it now. 447 */ 448 if (pdata->already_suspended) { 449 dev_dbg(dev, "already suspended, leaving early\n"); 450 pdata->already_suspended = 0; 451 return 0; 452 } 453 454 if (!pdata->suspended) { 455 dev_dbg(dev, "not suspended, leaving early\n"); 456 return 0; 457 } 458 459 pdata->suspended = 0; 460 461 dev_dbg(dev, "resuming...\n"); 462 463 /* set host mode */ 464 tmp = USBMODE_CM_HOST | (pdata->es ? USBMODE_ES : 0); 465 ehci_writel(ehci, tmp, hcd->regs + FSL_SOC_USB_USBMODE); 466 467 ehci_writel(ehci, pdata->pm_usbgenctrl, 468 hcd->regs + FSL_SOC_USB_USBGENCTRL); 469 ehci_writel(ehci, ISIPHYCTRL_PXE | ISIPHYCTRL_PHYE, 470 hcd->regs + FSL_SOC_USB_ISIPHYCTRL); 471 472 /* restore EHCI registers */ 473 ehci_writel(ehci, pdata->pm_command, &ehci->regs->command); 474 ehci_writel(ehci, pdata->pm_intr_enable, &ehci->regs->intr_enable); 475 ehci_writel(ehci, pdata->pm_frame_index, &ehci->regs->frame_index); 476 ehci_writel(ehci, pdata->pm_segment, &ehci->regs->segment); 477 ehci_writel(ehci, pdata->pm_frame_list, &ehci->regs->frame_list); 478 ehci_writel(ehci, pdata->pm_async_next, &ehci->regs->async_next); 479 ehci_writel(ehci, pdata->pm_configured_flag, 480 &ehci->regs->configured_flag); 481 ehci_writel(ehci, pdata->pm_portsc, &ehci->regs->port_status[0]); 482 483 set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); 484 hcd->state = HC_STATE_RUNNING; 485 dev->power.power_state = PMSG_ON; 486 487 tmp = ehci_readl(ehci, &ehci->regs->command); 488 tmp |= CMD_RUN; 489 ehci_writel(ehci, tmp, &ehci->regs->command); 490 491 usb_hcd_resume_root_hub(hcd); 492 493 return 0; 494 } 495 #else 496 static inline int ehci_fsl_mpc512x_drv_suspend(struct device *dev) 497 { 498 return 0; 499 } 500 501 static inline int ehci_fsl_mpc512x_drv_resume(struct device *dev) 502 { 503 return 0; 504 } 505 #endif /* CONFIG_PPC_MPC512x */ 506 507 static struct ehci_fsl *hcd_to_ehci_fsl(struct usb_hcd *hcd) 508 { 509 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 510 511 return container_of(ehci, struct ehci_fsl, ehci); 512 } 513 514 static int ehci_fsl_drv_suspend(struct device *dev) 515 { 516 struct usb_hcd *hcd = dev_get_drvdata(dev); 517 struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd); 518 void __iomem *non_ehci = hcd->regs; 519 520 if (of_device_is_compatible(dev->parent->of_node, 521 "fsl,mpc5121-usb2-dr")) { 522 return ehci_fsl_mpc512x_drv_suspend(dev); 523 } 524 525 ehci_prepare_ports_for_controller_suspend(hcd_to_ehci(hcd), 526 device_may_wakeup(dev)); 527 if (!fsl_deep_sleep()) 528 return 0; 529 530 ehci_fsl->usb_ctrl = in_be32(non_ehci + FSL_SOC_USB_CTRL); 531 return 0; 532 } 533 534 static int ehci_fsl_drv_resume(struct device *dev) 535 { 536 struct usb_hcd *hcd = dev_get_drvdata(dev); 537 struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd); 538 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 539 void __iomem *non_ehci = hcd->regs; 540 541 if (of_device_is_compatible(dev->parent->of_node, 542 "fsl,mpc5121-usb2-dr")) { 543 return ehci_fsl_mpc512x_drv_resume(dev); 544 } 545 546 ehci_prepare_ports_for_controller_resume(ehci); 547 if (!fsl_deep_sleep()) 548 return 0; 549 550 usb_root_hub_lost_power(hcd->self.root_hub); 551 552 /* Restore USB PHY settings and enable the controller. */ 553 out_be32(non_ehci + FSL_SOC_USB_CTRL, ehci_fsl->usb_ctrl); 554 555 ehci_reset(ehci); 556 ehci_fsl_reinit(ehci); 557 558 return 0; 559 } 560 561 static int ehci_fsl_drv_restore(struct device *dev) 562 { 563 struct usb_hcd *hcd = dev_get_drvdata(dev); 564 565 usb_root_hub_lost_power(hcd->self.root_hub); 566 return 0; 567 } 568 569 static struct dev_pm_ops ehci_fsl_pm_ops = { 570 .suspend = ehci_fsl_drv_suspend, 571 .resume = ehci_fsl_drv_resume, 572 .restore = ehci_fsl_drv_restore, 573 }; 574 575 #define EHCI_FSL_PM_OPS (&ehci_fsl_pm_ops) 576 #else 577 #define EHCI_FSL_PM_OPS NULL 578 #endif /* CONFIG_PM */ 579 580 #ifdef CONFIG_USB_OTG 581 static int ehci_start_port_reset(struct usb_hcd *hcd, unsigned port) 582 { 583 struct ehci_hcd *ehci = hcd_to_ehci(hcd); 584 u32 status; 585 586 if (!port) 587 return -EINVAL; 588 589 port--; 590 591 /* start port reset before HNP protocol time out */ 592 status = readl(&ehci->regs->port_status[port]); 593 if (!(status & PORT_CONNECT)) 594 return -ENODEV; 595 596 /* khubd will finish the reset later */ 597 if (ehci_is_TDI(ehci)) { 598 writel(PORT_RESET | 599 (status & ~(PORT_CSC | PORT_PEC | PORT_OCC)), 600 &ehci->regs->port_status[port]); 601 } else { 602 writel(PORT_RESET, &ehci->regs->port_status[port]); 603 } 604 605 return 0; 606 } 607 #else 608 #define ehci_start_port_reset NULL 609 #endif /* CONFIG_USB_OTG */ 610 611 612 static const struct hc_driver ehci_fsl_hc_driver = { 613 .description = hcd_name, 614 .product_desc = "Freescale On-Chip EHCI Host Controller", 615 .hcd_priv_size = sizeof(struct ehci_fsl), 616 617 /* 618 * generic hardware linkage 619 */ 620 .irq = ehci_irq, 621 .flags = HCD_USB2 | HCD_MEMORY, 622 623 /* 624 * basic lifecycle operations 625 */ 626 .reset = ehci_fsl_setup, 627 .start = ehci_run, 628 .stop = ehci_stop, 629 .shutdown = ehci_shutdown, 630 631 /* 632 * managing i/o requests and associated device resources 633 */ 634 .urb_enqueue = ehci_urb_enqueue, 635 .urb_dequeue = ehci_urb_dequeue, 636 .endpoint_disable = ehci_endpoint_disable, 637 .endpoint_reset = ehci_endpoint_reset, 638 639 /* 640 * scheduling support 641 */ 642 .get_frame_number = ehci_get_frame, 643 644 /* 645 * root hub support 646 */ 647 .hub_status_data = ehci_hub_status_data, 648 .hub_control = ehci_hub_control, 649 .bus_suspend = ehci_bus_suspend, 650 .bus_resume = ehci_bus_resume, 651 .start_port_reset = ehci_start_port_reset, 652 .relinquish_port = ehci_relinquish_port, 653 .port_handed_over = ehci_port_handed_over, 654 655 .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, 656 }; 657 658 static int ehci_fsl_drv_probe(struct platform_device *pdev) 659 { 660 if (usb_disabled()) 661 return -ENODEV; 662 663 /* FIXME we only want one one probe() not two */ 664 return usb_hcd_fsl_probe(&ehci_fsl_hc_driver, pdev); 665 } 666 667 static int ehci_fsl_drv_remove(struct platform_device *pdev) 668 { 669 struct usb_hcd *hcd = platform_get_drvdata(pdev); 670 671 /* FIXME we only want one one remove() not two */ 672 usb_hcd_fsl_remove(hcd, pdev); 673 return 0; 674 } 675 676 MODULE_ALIAS("platform:fsl-ehci"); 677 678 static struct platform_driver ehci_fsl_driver = { 679 .probe = ehci_fsl_drv_probe, 680 .remove = ehci_fsl_drv_remove, 681 .shutdown = usb_hcd_platform_shutdown, 682 .driver = { 683 .name = "fsl-ehci", 684 .pm = EHCI_FSL_PM_OPS, 685 }, 686 }; 687