summaryrefslogtreecommitdiffstats
path: root/target/linux/brcm47xx/patches-3.0/0034-USB-OHCI-remove-old-SSB-OHCI-driver.patch
blob: 18c3e9f8e5d38642fabff690035e8f082f0bc810 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
From 8483de69568d1da9c106683d35d2b79c729b56c2 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 26 Nov 2011 21:36:50 +0100
Subject: [PATCH 21/21] USB: OHCI: remove old SSB OHCI driver

This is now replaced by the new ssb USB driver, which also supports
devices with an EHCI controller.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
 drivers/usb/host/Kconfig    |   13 --
 drivers/usb/host/ohci-hcd.c |   19 ---
 drivers/usb/host/ohci-ssb.c |  260 -------------------------------------------
 3 files changed, 0 insertions(+), 292 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-ssb.c

--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -351,19 +351,6 @@ config USB_OHCI_HCD_PCI
 	  Enables support for PCI-bus plug-in USB controller cards.
 	  If unsure, say Y.
 
-config USB_OHCI_HCD_SSB
-	bool "OHCI support for Broadcom SSB OHCI core"
-	depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
-	default n
-	---help---
-	  Support for the Sonics Silicon Backplane (SSB) attached
-	  Broadcom USB OHCI core.
-
-	  This device is present in some embedded devices with
-	  Broadcom based SSB bus.
-
-	  If unsure, say N.
-
 config USB_OHCI_SH
 	bool "OHCI support for SuperH USB controller"
 	depends on USB_OHCI_HCD && SUPERH
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1079,11 +1079,6 @@ MODULE_LICENSE ("GPL");
 #define PS3_SYSTEM_BUS_DRIVER	ps3_ohci_driver
 #endif
 
-#ifdef CONFIG_USB_OHCI_HCD_SSB
-#include "ohci-ssb.c"
-#define SSB_OHCI_DRIVER		ssb_ohci_driver
-#endif
-
 #ifdef CONFIG_MFD_SM501
 #include "ohci-sm501.c"
 #define SM501_OHCI_DRIVER	ohci_hcd_sm501_driver
@@ -1128,7 +1123,6 @@ MODULE_LICENSE ("GPL");
 	!defined(PS3_SYSTEM_BUS_DRIVER) && \
 	!defined(SM501_OHCI_DRIVER) && \
 	!defined(TMIO_OHCI_DRIVER) && \
-	!defined(SSB_OHCI_DRIVER) && \
 	!defined(PLATFORM_OHCI_DRIVER)
 #error "missing bus glue for ohci-hcd"
 #endif
@@ -1195,12 +1189,6 @@ static int __init ohci_hcd_mod_init(void
 		goto error_pci;
 #endif
 
-#ifdef SSB_OHCI_DRIVER
-	retval = ssb_driver_register(&SSB_OHCI_DRIVER);
-	if (retval)
-		goto error_ssb;
-#endif
-
 #ifdef SM501_OHCI_DRIVER
 	retval = platform_driver_register(&SM501_OHCI_DRIVER);
 	if (retval < 0)
@@ -1234,10 +1222,6 @@ static int __init ohci_hcd_mod_init(void
 	platform_driver_unregister(&SM501_OHCI_DRIVER);
  error_sm501:
 #endif
-#ifdef SSB_OHCI_DRIVER
-	ssb_driver_unregister(&SSB_OHCI_DRIVER);
- error_ssb:
-#endif
 #ifdef PCI_DRIVER
 	pci_unregister_driver(&PCI_DRIVER);
  error_pci:
@@ -1288,9 +1272,6 @@ static void __exit ohci_hcd_mod_exit(voi
 #ifdef SM501_OHCI_DRIVER
 	platform_driver_unregister(&SM501_OHCI_DRIVER);
 #endif
-#ifdef SSB_OHCI_DRIVER
-	ssb_driver_unregister(&SSB_OHCI_DRIVER);
-#endif
 #ifdef PCI_DRIVER
 	pci_unregister_driver(&PCI_DRIVER);
 #endif
--- a/drivers/usb/host/ohci-ssb.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * Sonics Silicon Backplane
- * Broadcom USB-core OHCI driver
- *
- * Copyright 2007 Michael Buesch <mb@bu3sch.de>
- *
- * Derived from the OHCI-PCI driver
- * Copyright 1999 Roman Weissgaerber
- * Copyright 2000-2002 David Brownell
- * Copyright 1999 Linus Torvalds
- * Copyright 1999 Gregory P. Smith
- *
- * Derived from the USBcore related parts of Broadcom-SB
- * Copyright 2005 Broadcom Corporation
- *
- * Licensed under the GNU/GPL. See COPYING for details.
- */
-#include <linux/ssb/ssb.h>
-
-
-#define SSB_OHCI_TMSLOW_HOSTMODE	(1 << 29)
-
-struct ssb_ohci_device {
-	struct ohci_hcd ohci; /* _must_ be at the beginning. */
-
-	u32 enable_flags;
-};
-
-static inline
-struct ssb_ohci_device *hcd_to_ssb_ohci(struct usb_hcd *hcd)
-{
-	return (struct ssb_ohci_device *)(hcd->hcd_priv);
-}
-
-
-static int ssb_ohci_reset(struct usb_hcd *hcd)
-{
-	struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
-	struct ohci_hcd *ohci = &ohcidev->ohci;
-	int err;
-
-	ohci_hcd_init(ohci);
-	err = ohci_init(ohci);
-
-	return err;
-}
-
-static int ssb_ohci_start(struct usb_hcd *hcd)
-{
-	struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
-	struct ohci_hcd *ohci = &ohcidev->ohci;
-	int err;
-
-	err = ohci_run(ohci);
-	if (err < 0) {
-		ohci_err(ohci, "can't start\n");
-		ohci_stop(hcd);
-	}
-
-	return err;
-}
-
-static const struct hc_driver ssb_ohci_hc_driver = {
-	.description		= "ssb-usb-ohci",
-	.product_desc		= "SSB OHCI Controller",
-	.hcd_priv_size		= sizeof(struct ssb_ohci_device),
-
-	.irq			= ohci_irq,
-	.flags			= HCD_MEMORY | HCD_USB11,
-
-	.reset			= ssb_ohci_reset,
-	.start			= ssb_ohci_start,
-	.stop			= ohci_stop,
-	.shutdown		= ohci_shutdown,
-
-	.urb_enqueue		= ohci_urb_enqueue,
-	.urb_dequeue		= ohci_urb_dequeue,
-	.endpoint_disable	= ohci_endpoint_disable,
-
-	.get_frame_number	= ohci_get_frame,
-
-	.hub_status_data	= ohci_hub_status_data,
-	.hub_control		= ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend		= ohci_bus_suspend,
-	.bus_resume		= ohci_bus_resume,
-#endif
-
-	.start_port_reset	= ohci_start_port_reset,
-};
-
-static void ssb_ohci_detach(struct ssb_device *dev)
-{
-	struct usb_hcd *hcd = ssb_get_drvdata(dev);
-
-	if (hcd->driver->shutdown)
-		hcd->driver->shutdown(hcd);
-	usb_remove_hcd(hcd);
-	iounmap(hcd->regs);
-	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-	usb_put_hcd(hcd);
-	ssb_device_disable(dev, 0);
-}
-
-static int ssb_ohci_attach(struct ssb_device *dev)
-{
-	struct ssb_ohci_device *ohcidev;
-	struct usb_hcd *hcd;
-	int err = -ENOMEM;
-	u32 tmp, flags = 0;
-
-	if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
-	    dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
-		return -EOPNOTSUPP;
-
-	if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) {
-		/* Put the device into host-mode. */
-		flags |= SSB_OHCI_TMSLOW_HOSTMODE;
-		ssb_device_enable(dev, flags);
-	} else if (dev->id.coreid == SSB_DEV_USB20_HOST) {
-		/*
-		 * USB 2.0 special considerations:
-		 *
-		 * In addition to the standard SSB reset sequence, the Host
-		 * Control Register must be programmed to bring the USB core
-		 * and various phy components out of reset.
-		 */
-		ssb_device_enable(dev, 0);
-		ssb_write32(dev, 0x200, 0x7ff);
-
-		/* Change Flush control reg */
-		tmp = ssb_read32(dev, 0x400);
-		tmp &= ~8;
-		ssb_write32(dev, 0x400, tmp);
-		tmp = ssb_read32(dev, 0x400);
-
-		/* Change Shim control reg */
-		tmp = ssb_read32(dev, 0x304);
-		tmp &= ~0x100;
-		ssb_write32(dev, 0x304, tmp);
-		tmp = ssb_read32(dev, 0x304);
-
-		udelay(1);
-
-		/* Work around for 5354 failures */
-		if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) {
-			/* Change syn01 reg */
-			tmp = 0x00fe00fe;
-			ssb_write32(dev, 0x894, tmp);
-
-			/* Change syn03 reg */
-			tmp = ssb_read32(dev, 0x89c);
-			tmp |= 0x1;
-			ssb_write32(dev, 0x89c, tmp);
-		}
-	} else
-		ssb_device_enable(dev, 0);
-
-	hcd = usb_create_hcd(&ssb_ohci_hc_driver, dev->dev,
-			dev_name(dev->dev));
-	if (!hcd)
-		goto err_dev_disable;
-	ohcidev = hcd_to_ssb_ohci(hcd);
-	ohcidev->enable_flags = flags;
-
-	tmp = ssb_read32(dev, SSB_ADMATCH0);
-	hcd->rsrc_start = ssb_admatch_base(tmp);
-	hcd->rsrc_len = ssb_admatch_size(tmp);
-	hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs)
-		goto err_put_hcd;
-	err = usb_add_hcd(hcd, dev->irq, IRQF_DISABLED | IRQF_SHARED);
-	if (err)
-		goto err_iounmap;
-
-	ssb_set_drvdata(dev, hcd);
-
-	return err;
-
-err_iounmap:
-	iounmap(hcd->regs);
-err_put_hcd:
-	usb_put_hcd(hcd);
-err_dev_disable:
-	ssb_device_disable(dev, flags);
-	return err;
-}
-
-static int ssb_ohci_probe(struct ssb_device *dev,
-		const struct ssb_device_id *id)
-{
-	int err;
-	u16 chipid_top;
-
-	/* USBcores are only connected on embedded devices. */
-	chipid_top = (dev->bus->chip_id & 0xFF00);
-	if (chipid_top != 0x4700 && chipid_top != 0x5300)
-		return -ENODEV;
-
-	/* TODO: Probably need checks here; is the core connected? */
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	/* We currently always attach SSB_DEV_USB11_HOSTDEV
-	 * as HOST OHCI. If we want to attach it as Client device,
-	 * we must branch here and call into the (yet to
-	 * be written) Client mode driver. Same for remove(). */
-
-	err = ssb_ohci_attach(dev);
-
-	return err;
-}
-
-static void ssb_ohci_remove(struct ssb_device *dev)
-{
-	ssb_ohci_detach(dev);
-}
-
-#ifdef CONFIG_PM
-
-static int ssb_ohci_suspend(struct ssb_device *dev, pm_message_t state)
-{
-	ssb_device_disable(dev, 0);
-
-	return 0;
-}
-
-static int ssb_ohci_resume(struct ssb_device *dev)
-{
-	struct usb_hcd *hcd = ssb_get_drvdata(dev);
-	struct ssb_ohci_device *ohcidev = hcd_to_ssb_ohci(hcd);
-
-	ssb_device_enable(dev, ohcidev->enable_flags);
-
-	ohci_finish_controller_resume(hcd);
-	return 0;
-}
-
-#else /* !CONFIG_PM */
-#define ssb_ohci_suspend	NULL
-#define ssb_ohci_resume	NULL
-#endif /* CONFIG_PM */
-
-static const struct ssb_device_id ssb_ohci_table[] = {
-	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV),
-	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV),
-	SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV),
-	SSB_DEVTABLE_END
-};
-MODULE_DEVICE_TABLE(ssb, ssb_ohci_table);
-
-static struct ssb_driver ssb_ohci_driver = {
-	.name		= KBUILD_MODNAME,
-	.id_table	= ssb_ohci_table,
-	.probe		= ssb_ohci_probe,
-	.remove		= ssb_ohci_remove,
-	.suspend	= ssb_ohci_suspend,
-	.resume		= ssb_ohci_resume,
-};