Root/target/linux/brcm47xx/patches-3.3/185-USB-OHCI-remove-old-SSB-OHCI-driver.patch

1--- a/drivers/usb/host/Kconfig
2+++ b/drivers/usb/host/Kconfig
3@@ -361,10 +361,15 @@ config USB_OHCI_HCD_PCI
4       If unsure, say Y.
5 
6 config USB_OHCI_HCD_SSB
7- bool "OHCI support for Broadcom SSB OHCI core"
8+ bool "OHCI support for Broadcom SSB OHCI core (DEPRECATED)"
9     depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
10+ select USB_HCD_SSB
11+ select USB_OHCI_HCD_PLATFORM
12     default n
13     ---help---
14+ This option is deprecated now and the driver was removed, use
15+ USB_HCD_SSB and USB_OHCI_HCD_PLATFORM instead.
16+
17       Support for the Sonics Silicon Backplane (SSB) attached
18       Broadcom USB OHCI core.
19 
20--- a/drivers/usb/host/ohci-hcd.c
21+++ b/drivers/usb/host/ohci-hcd.c
22@@ -1081,11 +1081,6 @@ MODULE_LICENSE ("GPL");
23 #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver
24 #endif
25 
26-#ifdef CONFIG_USB_OHCI_HCD_SSB
27-#include "ohci-ssb.c"
28-#define SSB_OHCI_DRIVER ssb_ohci_driver
29-#endif
30-
31 #ifdef CONFIG_MFD_SM501
32 #include "ohci-sm501.c"
33 #define SM501_OHCI_DRIVER ohci_hcd_sm501_driver
34@@ -1134,8 +1129,7 @@ MODULE_LICENSE ("GPL");
35     !defined(SA1111_DRIVER) && \
36     !defined(PS3_SYSTEM_BUS_DRIVER) && \
37     !defined(SM501_OHCI_DRIVER) && \
38- !defined(TMIO_OHCI_DRIVER) && \
39- !defined(SSB_OHCI_DRIVER)
40+ !defined(TMIO_OHCI_DRIVER)
41 #error "missing bus glue for ohci-hcd"
42 #endif
43 
44@@ -1201,12 +1195,6 @@ static int __init ohci_hcd_mod_init(void
45         goto error_pci;
46 #endif
47 
48-#ifdef SSB_OHCI_DRIVER
49- retval = ssb_driver_register(&SSB_OHCI_DRIVER);
50- if (retval)
51- goto error_ssb;
52-#endif
53-
54 #ifdef SM501_OHCI_DRIVER
55     retval = platform_driver_register(&SM501_OHCI_DRIVER);
56     if (retval < 0)
57@@ -1230,10 +1218,6 @@ static int __init ohci_hcd_mod_init(void
58     platform_driver_unregister(&SM501_OHCI_DRIVER);
59  error_sm501:
60 #endif
61-#ifdef SSB_OHCI_DRIVER
62- ssb_driver_unregister(&SSB_OHCI_DRIVER);
63- error_ssb:
64-#endif
65 #ifdef PCI_DRIVER
66     pci_unregister_driver(&PCI_DRIVER);
67  error_pci:
68@@ -1281,9 +1265,6 @@ static void __exit ohci_hcd_mod_exit(voi
69 #ifdef SM501_OHCI_DRIVER
70     platform_driver_unregister(&SM501_OHCI_DRIVER);
71 #endif
72-#ifdef SSB_OHCI_DRIVER
73- ssb_driver_unregister(&SSB_OHCI_DRIVER);
74-#endif
75 #ifdef PCI_DRIVER
76     pci_unregister_driver(&PCI_DRIVER);
77 #endif
78--- a/drivers/usb/host/ohci-ssb.c
79+++ /dev/null
80@@ -1,260 +0,0 @@
81-/*
82- * Sonics Silicon Backplane
83- * Broadcom USB-core OHCI driver
84- *
85- * Copyright 2007 Michael Buesch <m@bues.ch>
86- *
87- * Derived from the OHCI-PCI driver
88- * Copyright 1999 Roman Weissgaerber
89- * Copyright 2000-2002 David Brownell
90- * Copyright 1999 Linus Torvalds
91- * Copyright 1999 Gregory P. Smith
92- *
93- * Derived from the USBcore related parts of Broadcom-SB
94- * Copyright 2005 Broadcom Corporation
95- *
96- * Licensed under the GNU/GPL. See COPYING for details.
97- */
98-#include <linux/ssb/ssb.h>
99-
100-
101-#define SSB_OHCI_TMSLOW_HOSTMODE (1 << 29)
102-
103-struct ssb_ohci_device {
104- struct ohci_hcd ohci; /* _must_ be at the beginning. */
105-
106- u32 enable_flags;
107-};
108-
109-static inline
110-struct ssb_ohci_device *hcd_to_ssb_ohci(struct usb_hcd *hcd)
111-{
112- return (struct ssb_ohci_device *)(hcd->hcd_priv);
113-}
114-
115-
116-static int ssb_ohci_reset(struct usb_hcd *hcd)
117-{
118- struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
119- struct ohci_hcd *ohci = &ohcidev->ohci;
120- int err;
121-
122- ohci_hcd_init(ohci);
123- err = ohci_init(ohci);
124-
125- return err;
126-}
127-
128-static int ssb_ohci_start(struct usb_hcd *hcd)
129-{
130- struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
131- struct ohci_hcd *ohci = &ohcidev->ohci;
132- int err;
133-
134- err = ohci_run(ohci);
135- if (err < 0) {
136- ohci_err(ohci, "can't start\n");
137- ohci_stop(hcd);
138- }
139-
140- return err;
141-}
142-
143-static const struct hc_driver ssb_ohci_hc_driver = {
144- .description = "ssb-usb-ohci",
145- .product_desc = "SSB OHCI Controller",
146- .hcd_priv_size = sizeof(struct ssb_ohci_device),
147-
148- .irq = ohci_irq,
149- .flags = HCD_MEMORY | HCD_USB11,
150-
151- .reset = ssb_ohci_reset,
152- .start = ssb_ohci_start,
153- .stop = ohci_stop,
154- .shutdown = ohci_shutdown,
155-
156- .urb_enqueue = ohci_urb_enqueue,
157- .urb_dequeue = ohci_urb_dequeue,
158- .endpoint_disable = ohci_endpoint_disable,
159-
160- .get_frame_number = ohci_get_frame,
161-
162- .hub_status_data = ohci_hub_status_data,
163- .hub_control = ohci_hub_control,
164-#ifdef CONFIG_PM
165- .bus_suspend = ohci_bus_suspend,
166- .bus_resume = ohci_bus_resume,
167-#endif
168-
169- .start_port_reset = ohci_start_port_reset,
170-};
171-
172-static void ssb_ohci_detach(struct ssb_device *dev)
173-{
174- struct usb_hcd *hcd = ssb_get_drvdata(dev);
175-
176- if (hcd->driver->shutdown)
177- hcd->driver->shutdown(hcd);
178- usb_remove_hcd(hcd);
179- iounmap(hcd->regs);
180- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
181- usb_put_hcd(hcd);
182- ssb_device_disable(dev, 0);
183-}
184-
185-static int ssb_ohci_attach(struct ssb_device *dev)
186-{
187- struct ssb_ohci_device *ohcidev;
188- struct usb_hcd *hcd;
189- int err = -ENOMEM;
190- u32 tmp, flags = 0;
191-
192- if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
193- dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
194- return -EOPNOTSUPP;
195-
196- if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
197- /* Put the device into host-mode. */
198- flags |= SSB_OHCI_TMSLOW_HOSTMODE;
199- ssb_device_enable(dev, flags);
200- } else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
201- /*
202- * USB 2.0 special considerations:
203- *
204- * In addition to the standard SSB reset sequence, the Host
205- * Control Register must be programmed to bring the USB core
206- * and various phy components out of reset.
207- */
208- ssb_device_enable(dev, 0);
209- ssb_write32(dev, 0x200, 0x7ff);
210-
211- /* Change Flush control reg */
212- tmp = ssb_read32(dev, 0x400);
213- tmp &= ~8;
214- ssb_write32(dev, 0x400, tmp);
215- tmp = ssb_read32(dev, 0x400);
216-
217- /* Change Shim control reg */
218- tmp = ssb_read32(dev, 0x304);
219- tmp &= ~0x100;
220- ssb_write32(dev, 0x304, tmp);
221- tmp = ssb_read32(dev, 0x304);
222-
223- udelay(1);
224-
225- /* Work around for 5354 failures */
226- if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
227- /* Change syn01 reg */
228- tmp = 0x00fe00fe;
229- ssb_write32(dev, 0x894, tmp);
230-
231- /* Change syn03 reg */
232- tmp = ssb_read32(dev, 0x89c);
233- tmp |= 0x1;
234- ssb_write32(dev, 0x89c, tmp);
235- }
236- } else
237- ssb_device_enable(dev, 0);
238-
239- hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
240- dev_name(dev->dev));
241- if (!hcd)
242- goto err_dev_disable;
243- ohcidev = hcd_to_ssb_ohci(hcd);
244- ohcidev->enable_flags = flags;
245-
246- tmp = ssb_read32(dev, SSB_ADMATCH0);
247- hcd->rsrc_start = ssb_admatch_base(tmp);
248- hcd->rsrc_len = ssb_admatch_size(tmp);
249- hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
250- if (!hcd->regs)
251- goto err_put_hcd;
252- err = usb_add_hcd(hcd, dev->irq, IRQF_SHARED);
253- if (err)
254- goto err_iounmap;
255-
256- ssb_set_drvdata(dev, hcd);
257-
258- return err;
259-
260-err_iounmap:
261- iounmap(hcd->regs);
262-err_put_hcd:
263- usb_put_hcd(hcd);
264-err_dev_disable:
265- ssb_device_disable(dev, flags);
266- return err;
267-}
268-
269-static int ssb_ohci_probe(struct ssb_device *dev,
270- const struct ssb_device_id *id)
271-{
272- int err;
273- u16 chipid_top;
274-
275- /* USBcores are only connected on embedded devices. */
276- chipid_top = (dev->bus->chip_id & 0xFF00);
277- if (chipid_top != 0x4700 && chipid_top != 0x5300)
278- return -ENODEV;
279-
280- /* TODO: Probably need checks here; is the core connected? */
281-
282- if (usb_disabled())
283- return -ENODEV;
284-
285- /* We currently always attach SSB_DEV_USB11_HOSTDEV
286- * as HOST OHCI. If we want to attach it as Client device,
287- * we must branch here and call into the (yet to
288- * be written) Client mode driver. Same for remove(). */
289-
290- err = ssb_ohci_attach(dev);
291-
292- return err;
293-}
294-
295-static void ssb_ohci_remove(struct ssb_device *dev)
296-{
297- ssb_ohci_detach(dev);
298-}
299-
300-#ifdef CONFIG_PM
301-
302-static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state)
303-{
304- ssb_device_disable(dev, 0);
305-
306- return 0;
307-}
308-
309-static int ssb_ohci_resume(struct ssb_device *dev)
310-{
311- struct usb_hcd *hcd = ssb_get_drvdata(dev);
312- struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
313-
314- ssb_device_enable(dev, ohcidev->enable_flags);
315-
316- ohci_finish_controller_resume(hcd);
317- return 0;
318-}
319-
320-#else /* !CONFIG_PM */
321-#define ssb_ohci_suspend NULL
322-#define ssb_ohci_resume NULL
323-#endif /* CONFIG_PM */
324-
325-static const struct ssb_device_id ssb_ohci_table[] = {
326- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV),
327- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV),
328- SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
329- SSB_DEVTABLE_END
330-};
331-MODULE_DEVICE_TABLE(ssb, ssb_ohci_table);
332-
333-static struct ssb_driver ssb_ohci_driver = {
334- .name = KBUILD_MODNAME,
335- .id_table = ssb_ohci_table,
336- .probe = ssb_ohci_probe,
337- .remove = ssb_ohci_remove,
338- .suspend = ssb_ohci_suspend,
339- .resume = ssb_ohci_resume,
340-};
341

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