Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * OHCI HCD (Host Controller Driver) for USB. | |
3 | * | |
4 | * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> | |
5 | * (C) Copyright 2000-2005 David Brownell | |
6 | * (C) Copyright 2002 Hewlett-Packard Company | |
bd35078f | 7 | * |
1da177e4 LT |
8 | * OMAP Bus Glue |
9 | * | |
10 | * Modified for OMAP by Tony Lindgren <tony@atomide.com> | |
11 | * Based on the 2.4 OMAP OHCI driver originally done by MontaVista Software Inc. | |
12 | * and on ohci-sa1111.c by Christopher Hoover <ch@hpl.hp.com> | |
13 | * | |
14 | * This file is licenced under the GPL. | |
15 | */ | |
16 | ||
f8ce2547 | 17 | #include <linux/clk.h> |
de57a154 | 18 | #include <linux/dma-mapping.h> |
ded017ee | 19 | #include <linux/err.h> |
944e1bff | 20 | #include <linux/gpio.h> |
de57a154 MG |
21 | #include <linux/io.h> |
22 | #include <linux/jiffies.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/usb/otg.h> | |
26 | #include <linux/platform_device.h> | |
27 | #include <linux/signal.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/usb/hcd.h> | |
30 | ||
31 | #include "ohci.h" | |
4e57b681 | 32 | |
1da177e4 LT |
33 | #include <asm/io.h> |
34 | #include <asm/mach-types.h> | |
35 | ||
70c494c3 | 36 | #include <mach/mux.h> |
b924b204 TL |
37 | |
38 | #include <mach/hardware.h> | |
39 | #include <mach/irqs.h> | |
40 | #include <mach/usb.h> | |
1da177e4 LT |
41 | |
42 | ||
43 | /* OMAP-1510 OHCI has its own MMU for DMA */ | |
44 | #define OMAP1510_LB_MEMSIZE 32 /* Should be same as SDRAM size */ | |
45 | #define OMAP1510_LB_CLOCK_DIV 0xfffec10c | |
46 | #define OMAP1510_LB_MMU_CTL 0xfffec208 | |
47 | #define OMAP1510_LB_MMU_LCK 0xfffec224 | |
48 | #define OMAP1510_LB_MMU_LD_TLB 0xfffec228 | |
49 | #define OMAP1510_LB_MMU_CAM_H 0xfffec22c | |
50 | #define OMAP1510_LB_MMU_CAM_L 0xfffec230 | |
51 | #define OMAP1510_LB_MMU_RAM_H 0xfffec234 | |
52 | #define OMAP1510_LB_MMU_RAM_L 0xfffec238 | |
53 | ||
de57a154 | 54 | #define DRIVER_DESC "OHCI OMAP driver" |
1da177e4 LT |
55 | |
56 | #ifdef CONFIG_TPS65010 | |
6d16bfb5 | 57 | #include <linux/i2c/tps65010.h> |
1da177e4 LT |
58 | #else |
59 | ||
60 | #define LOW 0 | |
61 | #define HIGH 1 | |
62 | ||
63 | #define GPIO1 1 | |
64 | ||
65 | static inline int tps65010_set_gpio_out_value(unsigned gpio, unsigned value) | |
66 | { | |
67 | return 0; | |
68 | } | |
69 | ||
70 | #endif | |
71 | ||
72 | extern int usb_disabled(void); | |
73 | extern int ocpi_enable(void); | |
74 | ||
75 | static struct clk *usb_host_ck; | |
bd35078f | 76 | static struct clk *usb_dc_ck; |
de57a154 MG |
77 | |
78 | static const char hcd_name[] = "ohci-omap"; | |
79 | static struct hc_driver __read_mostly ohci_omap_hc_driver; | |
1da177e4 LT |
80 | |
81 | static void omap_ohci_clock_power(int on) | |
82 | { | |
83 | if (on) { | |
bd35078f | 84 | clk_enable(usb_dc_ck); |
1da177e4 LT |
85 | clk_enable(usb_host_ck); |
86 | /* guesstimate for T5 == 1x 32K clock + APLL lock time */ | |
87 | udelay(100); | |
88 | } else { | |
89 | clk_disable(usb_host_ck); | |
bd35078f | 90 | clk_disable(usb_dc_ck); |
1da177e4 LT |
91 | } |
92 | } | |
93 | ||
94 | /* | |
95 | * Board specific gang-switched transceiver power on/off. | |
96 | * NOTE: OSK supplies power from DC, not battery. | |
97 | */ | |
98 | static int omap_ohci_transceiver_power(int on) | |
99 | { | |
100 | if (on) { | |
101 | if (machine_is_omap_innovator() && cpu_is_omap1510()) | |
4c98dc6b | 102 | __raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL) |
bd35078f | 103 | | ((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), |
1da177e4 LT |
104 | INNOVATOR_FPGA_CAM_USB_CONTROL); |
105 | else if (machine_is_omap_osk()) | |
106 | tps65010_set_gpio_out_value(GPIO1, LOW); | |
107 | } else { | |
108 | if (machine_is_omap_innovator() && cpu_is_omap1510()) | |
4c98dc6b | 109 | __raw_writeb(__raw_readb(INNOVATOR_FPGA_CAM_USB_CONTROL) |
bd35078f | 110 | & ~((1 << 5/*usb1*/) | (1 << 3/*usb2*/)), |
1da177e4 LT |
111 | INNOVATOR_FPGA_CAM_USB_CONTROL); |
112 | else if (machine_is_omap_osk()) | |
113 | tps65010_set_gpio_out_value(GPIO1, HIGH); | |
114 | } | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
bd35078f | 119 | #ifdef CONFIG_ARCH_OMAP15XX |
1da177e4 LT |
120 | /* |
121 | * OMAP-1510 specific Local Bus clock on/off | |
122 | */ | |
123 | static int omap_1510_local_bus_power(int on) | |
124 | { | |
125 | if (on) { | |
126 | omap_writel((1 << 1) | (1 << 0), OMAP1510_LB_MMU_CTL); | |
127 | udelay(200); | |
128 | } else { | |
129 | omap_writel(0, OMAP1510_LB_MMU_CTL); | |
130 | } | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | /* | |
136 | * OMAP-1510 specific Local Bus initialization | |
137 | * NOTE: This assumes 32MB memory size in OMAP1510LB_MEMSIZE. | |
bd35078f DB |
138 | * See also arch/mach-omap/memory.h for __virt_to_dma() and |
139 | * __dma_to_virt() which need to match with the physical | |
1da177e4 LT |
140 | * Local Bus address below. |
141 | */ | |
142 | static int omap_1510_local_bus_init(void) | |
143 | { | |
144 | unsigned int tlb; | |
145 | unsigned long lbaddr, physaddr; | |
146 | ||
bd35078f | 147 | omap_writel((omap_readl(OMAP1510_LB_CLOCK_DIV) & 0xfffffff8) | 0x4, |
1da177e4 LT |
148 | OMAP1510_LB_CLOCK_DIV); |
149 | ||
150 | /* Configure the Local Bus MMU table */ | |
151 | for (tlb = 0; tlb < OMAP1510_LB_MEMSIZE; tlb++) { | |
152 | lbaddr = tlb * 0x00100000 + OMAP1510_LB_OFFSET; | |
153 | physaddr = tlb * 0x00100000 + PHYS_OFFSET; | |
154 | omap_writel((lbaddr & 0x0fffffff) >> 22, OMAP1510_LB_MMU_CAM_H); | |
bd35078f | 155 | omap_writel(((lbaddr & 0x003ffc00) >> 6) | 0xc, |
1da177e4 LT |
156 | OMAP1510_LB_MMU_CAM_L); |
157 | omap_writel(physaddr >> 16, OMAP1510_LB_MMU_RAM_H); | |
158 | omap_writel((physaddr & 0x0000fc00) | 0x300, OMAP1510_LB_MMU_RAM_L); | |
159 | omap_writel(tlb << 4, OMAP1510_LB_MMU_LCK); | |
160 | omap_writel(0x1, OMAP1510_LB_MMU_LD_TLB); | |
161 | } | |
162 | ||
163 | /* Enable the walking table */ | |
164 | omap_writel(omap_readl(OMAP1510_LB_MMU_CTL) | (1 << 3), OMAP1510_LB_MMU_CTL); | |
165 | udelay(200); | |
166 | ||
167 | return 0; | |
168 | } | |
bd35078f DB |
169 | #else |
170 | #define omap_1510_local_bus_power(x) {} | |
171 | #define omap_1510_local_bus_init() {} | |
172 | #endif | |
1da177e4 LT |
173 | |
174 | #ifdef CONFIG_USB_OTG | |
175 | ||
176 | static void start_hnp(struct ohci_hcd *ohci) | |
177 | { | |
c2e935a7 RZ |
178 | struct usb_hcd *hcd = ohci_to_hcd(ohci); |
179 | const unsigned port = hcd->self.otg_port - 1; | |
1da177e4 | 180 | unsigned long flags; |
f35ae634 | 181 | u32 l; |
1da177e4 | 182 | |
c2e935a7 | 183 | otg_start_hnp(hcd->phy->otg); |
1da177e4 LT |
184 | |
185 | local_irq_save(flags); | |
c2e935a7 | 186 | hcd->phy->state = OTG_STATE_A_SUSPEND; |
1da177e4 | 187 | writel (RH_PS_PSS, &ohci->regs->roothub.portstatus [port]); |
f35ae634 TL |
188 | l = omap_readl(OTG_CTRL); |
189 | l &= ~OTG_A_BUSREQ; | |
190 | omap_writel(l, OTG_CTRL); | |
1da177e4 LT |
191 | local_irq_restore(flags); |
192 | } | |
193 | ||
194 | #endif | |
195 | ||
196 | /*-------------------------------------------------------------------------*/ | |
197 | ||
de57a154 | 198 | static int ohci_omap_reset(struct usb_hcd *hcd) |
1da177e4 | 199 | { |
bd35078f | 200 | struct ohci_hcd *ohci = hcd_to_ohci(hcd); |
d4f09e28 | 201 | struct omap_usb_config *config = dev_get_platdata(hcd->self.controller); |
1da177e4 LT |
202 | int need_transceiver = (config->otg != 0); |
203 | int ret; | |
204 | ||
bd35078f | 205 | dev_dbg(hcd->self.controller, "starting USB Controller\n"); |
1da177e4 LT |
206 | |
207 | if (config->otg) { | |
de57a154 | 208 | hcd->self.otg_port = config->otg; |
1da177e4 | 209 | /* default/minimum OTG power budget: 8 mA */ |
de57a154 | 210 | hcd->power_budget = 8; |
1da177e4 LT |
211 | } |
212 | ||
213 | /* boards can use OTG transceivers in non-OTG modes */ | |
214 | need_transceiver = need_transceiver | |
215 | || machine_is_omap_h2() || machine_is_omap_h3(); | |
216 | ||
d3645d39 PW |
217 | /* XXX OMAP16xx only */ |
218 | if (config->ocpi_enable) | |
219 | config->ocpi_enable(); | |
1da177e4 | 220 | |
c3df1a26 | 221 | #ifdef CONFIG_USB_OTG |
1da177e4 | 222 | if (need_transceiver) { |
ff9cce82 GKH |
223 | hcd->phy = usb_get_phy(USB_PHY_TYPE_USB2); |
224 | if (!IS_ERR_OR_NULL(hcd->phy)) { | |
c2e935a7 | 225 | int status = otg_set_host(hcd->phy->otg, |
1da177e4 | 226 | &ohci_to_hcd(ohci)->self); |
c2e935a7 RZ |
227 | dev_dbg(hcd->self.controller, "init %s phy, status %d\n", |
228 | hcd->phy->label, status); | |
1da177e4 | 229 | if (status) { |
ff9cce82 | 230 | usb_put_phy(hcd->phy); |
1da177e4 LT |
231 | return status; |
232 | } | |
233 | } else { | |
c2e935a7 | 234 | dev_err(hcd->self.controller, "can't find phy\n"); |
1da177e4 LT |
235 | return -ENODEV; |
236 | } | |
e8b24450 | 237 | ohci->start_hnp = start_hnp; |
1da177e4 LT |
238 | } |
239 | #endif | |
240 | ||
241 | omap_ohci_clock_power(1); | |
242 | ||
9b466c3b | 243 | if (cpu_is_omap15xx()) { |
1da177e4 LT |
244 | omap_1510_local_bus_power(1); |
245 | omap_1510_local_bus_init(); | |
246 | } | |
247 | ||
de57a154 MG |
248 | ret = ohci_setup(hcd); |
249 | if (ret < 0) | |
1da177e4 LT |
250 | return ret; |
251 | ||
de57a154 MG |
252 | if (config->otg || config->rwc) { |
253 | ohci->hc_control = OHCI_CTRL_RWC; | |
254 | writel(OHCI_CTRL_RWC, &ohci->regs->control); | |
255 | } | |
256 | ||
1da177e4 LT |
257 | /* board-specific power switching and overcurrent support */ |
258 | if (machine_is_omap_osk() || machine_is_omap_innovator()) { | |
259 | u32 rh = roothub_a (ohci); | |
260 | ||
261 | /* power switching (ganged by default) */ | |
262 | rh &= ~RH_A_NPS; | |
263 | ||
264 | /* TPS2045 switch for internal transceiver (port 1) */ | |
265 | if (machine_is_omap_osk()) { | |
bc96c0ad | 266 | ohci_to_hcd(ohci)->power_budget = 250; |
1da177e4 LT |
267 | |
268 | rh &= ~RH_A_NOCP; | |
269 | ||
270 | /* gpio9 for overcurrent detction */ | |
271 | omap_cfg_reg(W8_1610_GPIO9); | |
944e1bff | 272 | gpio_request(9, "OHCI overcurrent"); |
40e3925b | 273 | gpio_direction_input(9); |
1da177e4 LT |
274 | |
275 | /* for paranoia's sake: disable USB.PUEN */ | |
276 | omap_cfg_reg(W4_USB_HIGHZ); | |
277 | } | |
278 | ohci_writel(ohci, rh, &ohci->regs->roothub.a); | |
1133cd8a | 279 | ohci->flags &= ~OHCI_QUIRK_HUB_POWER; |
bd35078f DB |
280 | } else if (machine_is_nokia770()) { |
281 | /* We require a self-powered hub, which should have | |
282 | * plenty of power. */ | |
283 | ohci_to_hcd(ohci)->power_budget = 0; | |
1da177e4 LT |
284 | } |
285 | ||
286 | /* FIXME khubd hub requests should manage power switching */ | |
287 | omap_ohci_transceiver_power(1); | |
288 | ||
289 | /* board init will have already handled HMC and mux setup. | |
290 | * any external transceiver should already be initialized | |
291 | * too, so all configured ports use the right signaling now. | |
292 | */ | |
293 | ||
294 | return 0; | |
295 | } | |
296 | ||
1da177e4 LT |
297 | /*-------------------------------------------------------------------------*/ |
298 | ||
1da177e4 LT |
299 | /** |
300 | * usb_hcd_omap_probe - initialize OMAP-based HCDs | |
301 | * Context: !in_interrupt() | |
302 | * | |
303 | * Allocates basic resources for this USB host controller, and | |
304 | * then invokes the start() method for the HCD associated with it | |
305 | * through the hotplug entry's driver_data. | |
306 | */ | |
bd35078f | 307 | static int usb_hcd_omap_probe (const struct hc_driver *driver, |
1da177e4 LT |
308 | struct platform_device *pdev) |
309 | { | |
48944738 | 310 | int retval, irq; |
1da177e4 | 311 | struct usb_hcd *hcd = 0; |
1da177e4 LT |
312 | |
313 | if (pdev->num_resources != 2) { | |
bd35078f | 314 | printk(KERN_ERR "hcd probe: invalid num_resources: %i\n", |
1da177e4 LT |
315 | pdev->num_resources); |
316 | return -ENODEV; | |
317 | } | |
318 | ||
bd35078f | 319 | if (pdev->resource[0].flags != IORESOURCE_MEM |
1da177e4 LT |
320 | || pdev->resource[1].flags != IORESOURCE_IRQ) { |
321 | printk(KERN_ERR "hcd probe: invalid resource type\n"); | |
322 | return -ENODEV; | |
323 | } | |
324 | ||
953a7e84 | 325 | usb_host_ck = clk_get(&pdev->dev, "usb_hhc_ck"); |
1da177e4 LT |
326 | if (IS_ERR(usb_host_ck)) |
327 | return PTR_ERR(usb_host_ck); | |
328 | ||
9b466c3b | 329 | if (!cpu_is_omap15xx()) |
953a7e84 | 330 | usb_dc_ck = clk_get(&pdev->dev, "usb_dc_ck"); |
bd35078f | 331 | else |
953a7e84 | 332 | usb_dc_ck = clk_get(&pdev->dev, "lb_ck"); |
bd35078f DB |
333 | |
334 | if (IS_ERR(usb_dc_ck)) { | |
335 | clk_put(usb_host_ck); | |
336 | return PTR_ERR(usb_dc_ck); | |
337 | } | |
338 | ||
339 | ||
7071a3ce | 340 | hcd = usb_create_hcd (driver, &pdev->dev, dev_name(&pdev->dev)); |
1da177e4 LT |
341 | if (!hcd) { |
342 | retval = -ENOMEM; | |
343 | goto err0; | |
344 | } | |
345 | hcd->rsrc_start = pdev->resource[0].start; | |
346 | hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1; | |
347 | ||
348 | if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { | |
349 | dev_dbg(&pdev->dev, "request_mem_region failed\n"); | |
350 | retval = -EBUSY; | |
351 | goto err1; | |
352 | } | |
353 | ||
55c381e4 RK |
354 | hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); |
355 | if (!hcd->regs) { | |
356 | dev_err(&pdev->dev, "can't ioremap OHCI HCD\n"); | |
357 | retval = -ENOMEM; | |
358 | goto err2; | |
359 | } | |
1da177e4 | 360 | |
48944738 DV |
361 | irq = platform_get_irq(pdev, 0); |
362 | if (irq < 0) { | |
363 | retval = -ENXIO; | |
55c381e4 | 364 | goto err3; |
48944738 | 365 | } |
b5dd18d8 | 366 | retval = usb_add_hcd(hcd, irq, 0); |
bd35078f | 367 | if (retval) |
55c381e4 | 368 | goto err3; |
bd35078f | 369 | |
bd35078f | 370 | return 0; |
55c381e4 RK |
371 | err3: |
372 | iounmap(hcd->regs); | |
1da177e4 LT |
373 | err2: |
374 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); | |
375 | err1: | |
376 | usb_put_hcd(hcd); | |
377 | err0: | |
bd35078f | 378 | clk_put(usb_dc_ck); |
1da177e4 LT |
379 | clk_put(usb_host_ck); |
380 | return retval; | |
381 | } | |
382 | ||
383 | ||
384 | /* may be called with controller, bus, and devices active */ | |
385 | ||
386 | /** | |
387 | * usb_hcd_omap_remove - shutdown processing for OMAP-based HCDs | |
388 | * @dev: USB Host Controller being removed | |
389 | * Context: !in_interrupt() | |
390 | * | |
391 | * Reverses the effect of usb_hcd_omap_probe(), first invoking | |
392 | * the HCD's stop() method. It is always called from a thread | |
393 | * context, normally "rmmod", "apmd", or something similar. | |
1da177e4 | 394 | */ |
bd35078f DB |
395 | static inline void |
396 | usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) | |
1da177e4 | 397 | { |
de57a154 | 398 | dev_dbg(hcd->self.controller, "stopping USB Controller\n"); |
1da177e4 | 399 | usb_remove_hcd(hcd); |
de57a154 | 400 | omap_ohci_clock_power(0); |
ff9cce82 | 401 | if (!IS_ERR_OR_NULL(hcd->phy)) { |
c2e935a7 | 402 | (void) otg_set_host(hcd->phy->otg, 0); |
ff9cce82 | 403 | usb_put_phy(hcd->phy); |
bd35078f | 404 | } |
1da177e4 | 405 | if (machine_is_omap_osk()) |
944e1bff | 406 | gpio_free(9); |
55c381e4 | 407 | iounmap(hcd->regs); |
1da177e4 LT |
408 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
409 | usb_put_hcd(hcd); | |
bd35078f | 410 | clk_put(usb_dc_ck); |
1da177e4 LT |
411 | clk_put(usb_host_ck); |
412 | } | |
413 | ||
414 | /*-------------------------------------------------------------------------*/ | |
415 | ||
3ae5eaec | 416 | static int ohci_hcd_omap_drv_probe(struct platform_device *dev) |
1da177e4 | 417 | { |
3ae5eaec | 418 | return usb_hcd_omap_probe(&ohci_omap_hc_driver, dev); |
1da177e4 LT |
419 | } |
420 | ||
3ae5eaec | 421 | static int ohci_hcd_omap_drv_remove(struct platform_device *dev) |
1da177e4 | 422 | { |
3ae5eaec | 423 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
1da177e4 | 424 | |
3ae5eaec | 425 | usb_hcd_omap_remove(hcd, dev); |
1da177e4 LT |
426 | |
427 | return 0; | |
428 | } | |
429 | ||
430 | /*-------------------------------------------------------------------------*/ | |
431 | ||
432 | #ifdef CONFIG_PM | |
433 | ||
3ae5eaec | 434 | static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message) |
1da177e4 | 435 | { |
3ae5eaec | 436 | struct ohci_hcd *ohci = hcd_to_ohci(platform_get_drvdata(dev)); |
f197b2c5 DB |
437 | |
438 | if (time_before(jiffies, ohci->next_statechange)) | |
439 | msleep(5); | |
440 | ohci->next_statechange = jiffies; | |
441 | ||
442 | omap_ohci_clock_power(0); | |
f197b2c5 | 443 | return 0; |
1da177e4 LT |
444 | } |
445 | ||
3ae5eaec | 446 | static int ohci_omap_resume(struct platform_device *dev) |
1da177e4 | 447 | { |
43bbb7e0 AS |
448 | struct usb_hcd *hcd = platform_get_drvdata(dev); |
449 | struct ohci_hcd *ohci = hcd_to_ohci(hcd); | |
1da177e4 | 450 | |
b404a5b0 | 451 | if (time_before(jiffies, ohci->next_statechange)) |
452 | msleep(5); | |
453 | ohci->next_statechange = jiffies; | |
f197b2c5 | 454 | |
b404a5b0 | 455 | omap_ohci_clock_power(1); |
cfa49b4b | 456 | ohci_resume(hcd, false); |
f197b2c5 | 457 | return 0; |
1da177e4 LT |
458 | } |
459 | ||
460 | #endif | |
461 | ||
462 | /*-------------------------------------------------------------------------*/ | |
463 | ||
464 | /* | |
465 | * Driver definition to register with the OMAP bus | |
466 | */ | |
3ae5eaec | 467 | static struct platform_driver ohci_hcd_omap_driver = { |
1da177e4 LT |
468 | .probe = ohci_hcd_omap_drv_probe, |
469 | .remove = ohci_hcd_omap_drv_remove, | |
dd9048af | 470 | .shutdown = usb_hcd_platform_shutdown, |
1da177e4 LT |
471 | #ifdef CONFIG_PM |
472 | .suspend = ohci_omap_suspend, | |
473 | .resume = ohci_omap_resume, | |
474 | #endif | |
3ae5eaec RK |
475 | .driver = { |
476 | .owner = THIS_MODULE, | |
477 | .name = "ohci", | |
478 | }, | |
1da177e4 LT |
479 | }; |
480 | ||
de57a154 MG |
481 | static const struct ohci_driver_overrides omap_overrides __initconst = { |
482 | .product_desc = "OMAP OHCI", | |
483 | .reset = ohci_omap_reset | |
484 | }; | |
485 | ||
486 | static int __init ohci_omap_init(void) | |
487 | { | |
488 | if (usb_disabled()) | |
489 | return -ENODEV; | |
490 | ||
491 | pr_info("%s: " DRIVER_DESC "\n", hcd_name); | |
492 | ||
493 | ohci_init_driver(&ohci_omap_hc_driver, &omap_overrides); | |
494 | return platform_driver_register(&ohci_hcd_omap_driver); | |
495 | } | |
496 | module_init(ohci_omap_init); | |
497 | ||
498 | static void __exit ohci_omap_cleanup(void) | |
499 | { | |
500 | platform_driver_unregister(&ohci_hcd_omap_driver); | |
501 | } | |
502 | module_exit(ohci_omap_cleanup); | |
503 | ||
504 | MODULE_DESCRIPTION(DRIVER_DESC); | |
f4fce61d | 505 | MODULE_ALIAS("platform:ohci"); |
de57a154 | 506 | MODULE_LICENSE("GPL"); |