diff options
Diffstat (limited to 'drivers/usb/host/ehci-omap.c')
-rw-r--r-- | drivers/usb/host/ehci-omap.c | 167 |
1 files changed, 1 insertions, 166 deletions
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index bb55eb4a7d48..d7fe287d0678 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c | |||
@@ -56,15 +56,6 @@ | |||
56 | #define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8 | 56 | #define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8 |
57 | #define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0 | 57 | #define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0 |
58 | 58 | ||
59 | /* Errata i693 */ | ||
60 | static struct clk *utmi_p1_fck; | ||
61 | static struct clk *utmi_p2_fck; | ||
62 | static struct clk *xclk60mhsp1_ck; | ||
63 | static struct clk *xclk60mhsp2_ck; | ||
64 | static struct clk *usbhost_p1_fck; | ||
65 | static struct clk *usbhost_p2_fck; | ||
66 | static struct clk *init_60m_fclk; | ||
67 | |||
68 | /*-------------------------------------------------------------------------*/ | 59 | /*-------------------------------------------------------------------------*/ |
69 | 60 | ||
70 | static const struct hc_driver ehci_omap_hc_driver; | 61 | static const struct hc_driver ehci_omap_hc_driver; |
@@ -80,40 +71,6 @@ static inline u32 ehci_read(void __iomem *base, u32 reg) | |||
80 | return __raw_readl(base + reg); | 71 | return __raw_readl(base + reg); |
81 | } | 72 | } |
82 | 73 | ||
83 | /* Erratum i693 workaround sequence */ | ||
84 | static void omap_ehci_erratum_i693(struct ehci_hcd *ehci) | ||
85 | { | ||
86 | int ret = 0; | ||
87 | |||
88 | /* Switch to the internal 60 MHz clock */ | ||
89 | ret = clk_set_parent(utmi_p1_fck, init_60m_fclk); | ||
90 | if (ret != 0) | ||
91 | ehci_err(ehci, "init_60m_fclk set parent" | ||
92 | "failed error:%d\n", ret); | ||
93 | |||
94 | ret = clk_set_parent(utmi_p2_fck, init_60m_fclk); | ||
95 | if (ret != 0) | ||
96 | ehci_err(ehci, "init_60m_fclk set parent" | ||
97 | "failed error:%d\n", ret); | ||
98 | |||
99 | clk_enable(usbhost_p1_fck); | ||
100 | clk_enable(usbhost_p2_fck); | ||
101 | |||
102 | /* Wait 1ms and switch back to the external clock */ | ||
103 | mdelay(1); | ||
104 | ret = clk_set_parent(utmi_p1_fck, xclk60mhsp1_ck); | ||
105 | if (ret != 0) | ||
106 | ehci_err(ehci, "xclk60mhsp1_ck set parent" | ||
107 | "failed error:%d\n", ret); | ||
108 | |||
109 | ret = clk_set_parent(utmi_p2_fck, xclk60mhsp2_ck); | ||
110 | if (ret != 0) | ||
111 | ehci_err(ehci, "xclk60mhsp2_ck set parent" | ||
112 | "failed error:%d\n", ret); | ||
113 | |||
114 | clk_disable(usbhost_p1_fck); | ||
115 | clk_disable(usbhost_p2_fck); | ||
116 | } | ||
117 | 74 | ||
118 | static void omap_ehci_soft_phy_reset(struct usb_hcd *hcd, u8 port) | 75 | static void omap_ehci_soft_phy_reset(struct usb_hcd *hcd, u8 port) |
119 | { | 76 | { |
@@ -195,50 +152,6 @@ static int omap_ehci_init(struct usb_hcd *hcd) | |||
195 | return rc; | 152 | return rc; |
196 | } | 153 | } |
197 | 154 | ||
198 | static int omap_ehci_hub_control( | ||
199 | struct usb_hcd *hcd, | ||
200 | u16 typeReq, | ||
201 | u16 wValue, | ||
202 | u16 wIndex, | ||
203 | char *buf, | ||
204 | u16 wLength | ||
205 | ) | ||
206 | { | ||
207 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); | ||
208 | u32 __iomem *status_reg = &ehci->regs->port_status[ | ||
209 | (wIndex & 0xff) - 1]; | ||
210 | u32 temp; | ||
211 | unsigned long flags; | ||
212 | int retval = 0; | ||
213 | |||
214 | spin_lock_irqsave(&ehci->lock, flags); | ||
215 | |||
216 | if (typeReq == SetPortFeature && wValue == USB_PORT_FEAT_SUSPEND) { | ||
217 | temp = ehci_readl(ehci, status_reg); | ||
218 | if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0) { | ||
219 | retval = -EPIPE; | ||
220 | goto done; | ||
221 | } | ||
222 | |||
223 | temp &= ~PORT_WKCONN_E; | ||
224 | temp |= PORT_WKDISC_E | PORT_WKOC_E; | ||
225 | ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); | ||
226 | |||
227 | omap_ehci_erratum_i693(ehci); | ||
228 | |||
229 | set_bit((wIndex & 0xff) - 1, &ehci->suspended_ports); | ||
230 | goto done; | ||
231 | } | ||
232 | |||
233 | spin_unlock_irqrestore(&ehci->lock, flags); | ||
234 | |||
235 | /* Handle the hub control events here */ | ||
236 | return ehci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); | ||
237 | done: | ||
238 | spin_unlock_irqrestore(&ehci->lock, flags); | ||
239 | return retval; | ||
240 | } | ||
241 | |||
242 | static void disable_put_regulator( | 155 | static void disable_put_regulator( |
243 | struct ehci_hcd_omap_platform_data *pdata) | 156 | struct ehci_hcd_omap_platform_data *pdata) |
244 | { | 157 | { |
@@ -351,79 +264,9 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) | |||
351 | goto err_pm_runtime; | 264 | goto err_pm_runtime; |
352 | } | 265 | } |
353 | 266 | ||
354 | /* get clocks */ | ||
355 | utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); | ||
356 | if (IS_ERR(utmi_p1_fck)) { | ||
357 | ret = PTR_ERR(utmi_p1_fck); | ||
358 | dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); | ||
359 | goto err_add_hcd; | ||
360 | } | ||
361 | |||
362 | xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck"); | ||
363 | if (IS_ERR(xclk60mhsp1_ck)) { | ||
364 | ret = PTR_ERR(xclk60mhsp1_ck); | ||
365 | dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret); | ||
366 | goto err_utmi_p1_fck; | ||
367 | } | ||
368 | |||
369 | utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk"); | ||
370 | if (IS_ERR(utmi_p2_fck)) { | ||
371 | ret = PTR_ERR(utmi_p2_fck); | ||
372 | dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); | ||
373 | goto err_xclk60mhsp1_ck; | ||
374 | } | ||
375 | |||
376 | xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck"); | ||
377 | if (IS_ERR(xclk60mhsp2_ck)) { | ||
378 | ret = PTR_ERR(xclk60mhsp2_ck); | ||
379 | dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret); | ||
380 | goto err_utmi_p2_fck; | ||
381 | } | ||
382 | |||
383 | usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk"); | ||
384 | if (IS_ERR(usbhost_p1_fck)) { | ||
385 | ret = PTR_ERR(usbhost_p1_fck); | ||
386 | dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret); | ||
387 | goto err_xclk60mhsp2_ck; | ||
388 | } | ||
389 | |||
390 | usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk"); | ||
391 | if (IS_ERR(usbhost_p2_fck)) { | ||
392 | ret = PTR_ERR(usbhost_p2_fck); | ||
393 | dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret); | ||
394 | goto err_usbhost_p1_fck; | ||
395 | } | ||
396 | |||
397 | init_60m_fclk = clk_get(dev, "init_60m_fclk"); | ||
398 | if (IS_ERR(init_60m_fclk)) { | ||
399 | ret = PTR_ERR(init_60m_fclk); | ||
400 | dev_err(dev, "init_60m_fclk failed error:%d\n", ret); | ||
401 | goto err_usbhost_p2_fck; | ||
402 | } | ||
403 | 267 | ||
404 | return 0; | 268 | return 0; |
405 | 269 | ||
406 | err_usbhost_p2_fck: | ||
407 | clk_put(usbhost_p2_fck); | ||
408 | |||
409 | err_usbhost_p1_fck: | ||
410 | clk_put(usbhost_p1_fck); | ||
411 | |||
412 | err_xclk60mhsp2_ck: | ||
413 | clk_put(xclk60mhsp2_ck); | ||
414 | |||
415 | err_utmi_p2_fck: | ||
416 | clk_put(utmi_p2_fck); | ||
417 | |||
418 | err_xclk60mhsp1_ck: | ||
419 | clk_put(xclk60mhsp1_ck); | ||
420 | |||
421 | err_utmi_p1_fck: | ||
422 | clk_put(utmi_p1_fck); | ||
423 | |||
424 | err_add_hcd: | ||
425 | usb_remove_hcd(hcd); | ||
426 | |||
427 | err_pm_runtime: | 270 | err_pm_runtime: |
428 | disable_put_regulator(pdata); | 271 | disable_put_regulator(pdata); |
429 | pm_runtime_put_sync(dev); | 272 | pm_runtime_put_sync(dev); |
@@ -454,14 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) | |||
454 | iounmap(hcd->regs); | 297 | iounmap(hcd->regs); |
455 | usb_put_hcd(hcd); | 298 | usb_put_hcd(hcd); |
456 | 299 | ||
457 | clk_put(utmi_p1_fck); | ||
458 | clk_put(utmi_p2_fck); | ||
459 | clk_put(xclk60mhsp1_ck); | ||
460 | clk_put(xclk60mhsp2_ck); | ||
461 | clk_put(usbhost_p1_fck); | ||
462 | clk_put(usbhost_p2_fck); | ||
463 | clk_put(init_60m_fclk); | ||
464 | |||
465 | pm_runtime_put_sync(dev); | 300 | pm_runtime_put_sync(dev); |
466 | pm_runtime_disable(dev); | 301 | pm_runtime_disable(dev); |
467 | 302 | ||
@@ -532,7 +367,7 @@ static const struct hc_driver ehci_omap_hc_driver = { | |||
532 | * root hub support | 367 | * root hub support |
533 | */ | 368 | */ |
534 | .hub_status_data = ehci_hub_status_data, | 369 | .hub_status_data = ehci_hub_status_data, |
535 | .hub_control = omap_ehci_hub_control, | 370 | .hub_control = ehci_hub_control, |
536 | .bus_suspend = ehci_bus_suspend, | 371 | .bus_suspend = ehci_bus_suspend, |
537 | .bus_resume = ehci_bus_resume, | 372 | .bus_resume = ehci_bus_resume, |
538 | 373 | ||