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1/*
2 * ehci-omap.c - driver for USBHOST on OMAP3/4 processors
3 *
4 * Bus Glue for the EHCI controllers in OMAP3/4
5 * Tested on several OMAP3 boards, and OMAP4 Pandaboard
6 *
7 * Copyright (C) 2007-2011 Texas Instruments, Inc.
8 * Author: Vikram Pandita <vikram.pandita@ti.com>
9 * Author: Anand Gadiyar <gadiyar@ti.com>
10 * Author: Keshava Munegowda <keshava_mgowda@ti.com>
11 *
12 * Copyright (C) 2009 Nokia Corporation
13 * Contact: Felipe Balbi <felipe.balbi@nokia.com>
14 *
15 * Based on "ehci-fsl.c" and "ehci-au1xxx.c" ehci glue layers
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 *
31 * TODO (last updated Feb 27, 2010):
32 * - add kernel-doc
33 * - enable AUTOIDLE
34 * - add suspend/resume
35 * - add HSIC and TLL support
36 * - convert to use hwmod and runtime PM
37 */
38
39#include <linux/platform_device.h>
40#include <linux/slab.h>
41#include <linux/usb/ulpi.h>
42#include <plat/usb.h>
43#include <linux/regulator/consumer.h>
44
45/* EHCI Register Set */
46#define EHCI_INSNREG04 (0xA0)
47#define EHCI_INSNREG04_DISABLE_UNSUSPEND (1 << 5)
48#define EHCI_INSNREG05_ULPI (0xA4)
49#define EHCI_INSNREG05_ULPI_CONTROL_SHIFT 31
50#define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT 24
51#define EHCI_INSNREG05_ULPI_OPSEL_SHIFT 22
52#define EHCI_INSNREG05_ULPI_REGADD_SHIFT 16
53#define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8
54#define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0
55
56/*-------------------------------------------------------------------------*/
57
58static const struct hc_driver ehci_omap_hc_driver;
59
60
61static inline void ehci_write(void __iomem *base, u32 reg, u32 val)
62{
63 __raw_writel(val, base + reg);
64}
65
66static inline u32 ehci_read(void __iomem *base, u32 reg)
67{
68 return __raw_readl(base + reg);
69}
70
71static void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port)
72{
73 struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
74 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
75 unsigned reg = 0;
76
77 reg = ULPI_FUNC_CTRL_RESET
78 /* FUNCTION_CTRL_SET register */
79 | (ULPI_SET(ULPI_FUNC_CTRL) << EHCI_INSNREG05_ULPI_REGADD_SHIFT)
80 /* Write */
81 | (2 << EHCI_INSNREG05_ULPI_OPSEL_SHIFT)
82 /* PORTn */
83 | ((port + 1) << EHCI_INSNREG05_ULPI_PORTSEL_SHIFT)
84 /* start ULPI access*/
85 | (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT);
86
87 ehci_write(hcd->regs, EHCI_INSNREG05_ULPI, reg);
88
89 /* Wait for ULPI access completion */
90 while ((ehci_read(hcd->regs, EHCI_INSNREG05_ULPI)
91 & (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT))) {
92 cpu_relax();
93
94 if (time_after(jiffies, timeout)) {
95 dev_dbg(&pdev->dev, "phy reset operation timed out\n");
96 break;
97 }
98 }
99}
100
101static void disable_put_regulator(
102 struct ehci_hcd_omap_platform_data *pdata)
103{
104 int i;
105
106 for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
107 if (pdata->regulator[i]) {
108 regulator_disable(pdata->regulator[i]);
109 regulator_put(pdata->regulator[i]);
110 }
111 }
112}
113
114/* configure so an HC device and id are always provided */
115/* always called with process context; sleeping is OK */
116
117/**
118 * ehci_hcd_omap_probe - initialize TI-based HCDs
119 *
120 * Allocates basic resources for this USB host controller, and
121 * then invokes the start() method for the HCD associated with it
122 * through the hotplug entry's driver_data.
123 */
124static int ehci_hcd_omap_probe(struct platform_device *pdev)
125{
126 struct device *dev = &pdev->dev;
127 struct ehci_hcd_omap_platform_data *pdata = dev->platform_data;
128 struct resource *res;
129 struct usb_hcd *hcd;
130 void __iomem *regs;
131 struct ehci_hcd *omap_ehci;
132 int ret = -ENODEV;
133 int irq;
134 int i;
135 char supply[7];
136
137 if (usb_disabled())
138 return -ENODEV;
139
140 if (!dev->parent) {
141 dev_err(dev, "Missing parent device\n");
142 return -ENODEV;
143 }
144
145 irq = platform_get_irq_byname(pdev, "ehci-irq");
146 if (irq < 0) {
147 dev_err(dev, "EHCI irq failed\n");
148 return -ENODEV;
149 }
150
151 res = platform_get_resource_byname(pdev,
152 IORESOURCE_MEM, "ehci");
153 if (!res) {
154 dev_err(dev, "UHH EHCI get resource failed\n");
155 return -ENODEV;
156 }
157
158 regs = ioremap(res->start, resource_size(res));
159 if (!regs) {
160 dev_err(dev, "UHH EHCI ioremap failed\n");
161 return -ENOMEM;
162 }
163
164 hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
165 dev_name(dev));
166 if (!hcd) {
167 dev_err(dev, "failed to create hcd with err %d\n", ret);
168 ret = -ENOMEM;
169 goto err_io;
170 }
171
172 hcd->rsrc_start = res->start;
173 hcd->rsrc_len = resource_size(res);
174 hcd->regs = regs;
175
176 /* get ehci regulator and enable */
177 for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
178 if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) {
179 pdata->regulator[i] = NULL;
180 continue;
181 }
182 snprintf(supply, sizeof(supply), "hsusb%d", i);
183 pdata->regulator[i] = regulator_get(dev, supply);
184 if (IS_ERR(pdata->regulator[i])) {
185 pdata->regulator[i] = NULL;
186 dev_dbg(dev,
187 "failed to get ehci port%d regulator\n", i);
188 } else {
189 regulator_enable(pdata->regulator[i]);
190 }
191 }
192
193 ret = omap_usbhs_enable(dev);
194 if (ret) {
195 dev_err(dev, "failed to start usbhs with err %d\n", ret);
196 goto err_enable;
197 }
198
199 /*
200 * An undocumented "feature" in the OMAP3 EHCI controller,
201 * causes suspended ports to be taken out of suspend when
202 * the USBCMD.Run/Stop bit is cleared (for example when
203 * we do ehci_bus_suspend).
204 * This breaks suspend-resume if the root-hub is allowed
205 * to suspend. Writing 1 to this undocumented register bit
206 * disables this feature and restores normal behavior.
207 */
208 ehci_write(regs, EHCI_INSNREG04,
209 EHCI_INSNREG04_DISABLE_UNSUSPEND);
210
211 /* Soft reset the PHY using PHY reset command over ULPI */
212 if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY)
213 omap_ehci_soft_phy_reset(pdev, 0);
214 if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY)
215 omap_ehci_soft_phy_reset(pdev, 1);
216
217 omap_ehci = hcd_to_ehci(hcd);
218 omap_ehci->sbrn = 0x20;
219
220 /* we know this is the memory we want, no need to ioremap again */
221 omap_ehci->caps = hcd->regs;
222 omap_ehci->regs = hcd->regs
223 + HC_LENGTH(ehci, readl(&omap_ehci->caps->hc_capbase));
224
225 dbg_hcs_params(omap_ehci, "reset");
226 dbg_hcc_params(omap_ehci, "reset");
227
228 /* cache this readonly data; minimize chip reads */
229 omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params);
230
231 ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
232 if (ret) {
233 dev_err(dev, "failed to add hcd with err %d\n", ret);
234 goto err_add_hcd;
235 }
236
237 /* root ports should always stay powered */
238 ehci_port_power(omap_ehci, 1);
239
240 return 0;
241
242err_add_hcd:
243 omap_usbhs_disable(dev);
244
245err_enable:
246 disable_put_regulator(pdata);
247 usb_put_hcd(hcd);
248
249err_io:
250 iounmap(regs);
251 return ret;
252}
253
254
255/**
256 * ehci_hcd_omap_remove - shutdown processing for EHCI HCDs
257 * @pdev: USB Host Controller being removed
258 *
259 * Reverses the effect of usb_ehci_hcd_omap_probe(), first invoking
260 * the HCD's stop() method. It is always called from a thread
261 * context, normally "rmmod", "apmd", or something similar.
262 */
263static int ehci_hcd_omap_remove(struct platform_device *pdev)
264{
265 struct device *dev = &pdev->dev;
266 struct usb_hcd *hcd = dev_get_drvdata(dev);
267
268 usb_remove_hcd(hcd);
269 omap_usbhs_disable(dev);
270 disable_put_regulator(dev->platform_data);
271 iounmap(hcd->regs);
272 usb_put_hcd(hcd);
273 return 0;
274}
275
276static void ehci_hcd_omap_shutdown(struct platform_device *pdev)
277{
278 struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
279
280 if (hcd->driver->shutdown)
281 hcd->driver->shutdown(hcd);
282}
283
284static struct platform_driver ehci_hcd_omap_driver = {
285 .probe = ehci_hcd_omap_probe,
286 .remove = ehci_hcd_omap_remove,
287 .shutdown = ehci_hcd_omap_shutdown,
288 /*.suspend = ehci_hcd_omap_suspend, */
289 /*.resume = ehci_hcd_omap_resume, */
290 .driver = {
291 .name = "ehci-omap",
292 }
293};
294
295/*-------------------------------------------------------------------------*/
296
297static const struct hc_driver ehci_omap_hc_driver = {
298 .description = hcd_name,
299 .product_desc = "OMAP-EHCI Host Controller",
300 .hcd_priv_size = sizeof(struct ehci_hcd),
301
302 /*
303 * generic hardware linkage
304 */
305 .irq = ehci_irq,
306 .flags = HCD_MEMORY | HCD_USB2,
307
308 /*
309 * basic lifecycle operations
310 */
311 .reset = ehci_init,
312 .start = ehci_run,
313 .stop = ehci_stop,
314 .shutdown = ehci_shutdown,
315
316 /*
317 * managing i/o requests and associated device resources
318 */
319 .urb_enqueue = ehci_urb_enqueue,
320 .urb_dequeue = ehci_urb_dequeue,
321 .endpoint_disable = ehci_endpoint_disable,
322 .endpoint_reset = ehci_endpoint_reset,
323
324 /*
325 * scheduling support
326 */
327 .get_frame_number = ehci_get_frame,
328
329 /*
330 * root hub support
331 */
332 .hub_status_data = ehci_hub_status_data,
333 .hub_control = ehci_hub_control,
334 .bus_suspend = ehci_bus_suspend,
335 .bus_resume = ehci_bus_resume,
336
337 .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
338};
339
340MODULE_ALIAS("platform:omap-ehci");
341MODULE_AUTHOR("Texas Instruments, Inc.");
342MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
343
1/*
2 * ehci-omap.c - driver for USBHOST on OMAP3/4 processors
3 *
4 * Bus Glue for the EHCI controllers in OMAP3/4
5 * Tested on several OMAP3 boards, and OMAP4 Pandaboard
6 *
7 * Copyright (C) 2007-2011 Texas Instruments, Inc.
8 * Author: Vikram Pandita <vikram.pandita@ti.com>
9 * Author: Anand Gadiyar <gadiyar@ti.com>
10 * Author: Keshava Munegowda <keshava_mgowda@ti.com>
11 *
12 * Copyright (C) 2009 Nokia Corporation
13 * Contact: Felipe Balbi <felipe.balbi@nokia.com>
14 *
15 * Based on "ehci-fsl.c" and "ehci-au1xxx.c" ehci glue layers
16 *
17 * This program is free software; you can redistribute it and/or modify
18 * it under the terms of the GNU General Public License as published by
19 * the Free Software Foundation; either version 2 of the License, or
20 * (at your option) any later version.
21 *
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
26 *
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software
29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 *
31 * TODO (last updated Feb 27, 2010):
32 * - add kernel-doc
33 * - enable AUTOIDLE
34 * - add suspend/resume
35 * - add HSIC and TLL support
36 * - convert to use hwmod and runtime PM
37 */
38
39#include <linux/platform_device.h>
40#include <linux/slab.h>
41#include <linux/usb/ulpi.h>
42#include <plat/usb.h>
43#include <linux/regulator/consumer.h>
44#include <linux/pm_runtime.h>
45#include <linux/gpio.h>
46#include <linux/clk.h>
47
48/* EHCI Register Set */
49#define EHCI_INSNREG04 (0xA0)
50#define EHCI_INSNREG04_DISABLE_UNSUSPEND (1 << 5)
51#define EHCI_INSNREG05_ULPI (0xA4)
52#define EHCI_INSNREG05_ULPI_CONTROL_SHIFT 31
53#define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT 24
54#define EHCI_INSNREG05_ULPI_OPSEL_SHIFT 22
55#define EHCI_INSNREG05_ULPI_REGADD_SHIFT 16
56#define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8
57#define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0
58
59/*-------------------------------------------------------------------------*/
60
61static const struct hc_driver ehci_omap_hc_driver;
62
63
64static inline void ehci_write(void __iomem *base, u32 reg, u32 val)
65{
66 __raw_writel(val, base + reg);
67}
68
69static inline u32 ehci_read(void __iomem *base, u32 reg)
70{
71 return __raw_readl(base + reg);
72}
73
74
75static void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port)
76{
77 struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
78 unsigned long timeout = jiffies + msecs_to_jiffies(1000);
79 unsigned reg = 0;
80
81 reg = ULPI_FUNC_CTRL_RESET
82 /* FUNCTION_CTRL_SET register */
83 | (ULPI_SET(ULPI_FUNC_CTRL) << EHCI_INSNREG05_ULPI_REGADD_SHIFT)
84 /* Write */
85 | (2 << EHCI_INSNREG05_ULPI_OPSEL_SHIFT)
86 /* PORTn */
87 | ((port + 1) << EHCI_INSNREG05_ULPI_PORTSEL_SHIFT)
88 /* start ULPI access*/
89 | (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT);
90
91 ehci_write(hcd->regs, EHCI_INSNREG05_ULPI, reg);
92
93 /* Wait for ULPI access completion */
94 while ((ehci_read(hcd->regs, EHCI_INSNREG05_ULPI)
95 & (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT))) {
96 cpu_relax();
97
98 if (time_after(jiffies, timeout)) {
99 dev_dbg(&pdev->dev, "phy reset operation timed out\n");
100 break;
101 }
102 }
103}
104
105static void disable_put_regulator(
106 struct ehci_hcd_omap_platform_data *pdata)
107{
108 int i;
109
110 for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
111 if (pdata->regulator[i]) {
112 regulator_disable(pdata->regulator[i]);
113 regulator_put(pdata->regulator[i]);
114 }
115 }
116}
117
118/* configure so an HC device and id are always provided */
119/* always called with process context; sleeping is OK */
120
121/**
122 * ehci_hcd_omap_probe - initialize TI-based HCDs
123 *
124 * Allocates basic resources for this USB host controller, and
125 * then invokes the start() method for the HCD associated with it
126 * through the hotplug entry's driver_data.
127 */
128static int ehci_hcd_omap_probe(struct platform_device *pdev)
129{
130 struct device *dev = &pdev->dev;
131 struct ehci_hcd_omap_platform_data *pdata = dev->platform_data;
132 struct resource *res;
133 struct usb_hcd *hcd;
134 void __iomem *regs;
135 struct ehci_hcd *omap_ehci;
136 int ret = -ENODEV;
137 int irq;
138 int i;
139 char supply[7];
140
141 if (usb_disabled())
142 return -ENODEV;
143
144 if (!dev->parent) {
145 dev_err(dev, "Missing parent device\n");
146 return -ENODEV;
147 }
148
149 irq = platform_get_irq_byname(pdev, "ehci-irq");
150 if (irq < 0) {
151 dev_err(dev, "EHCI irq failed\n");
152 return -ENODEV;
153 }
154
155 res = platform_get_resource_byname(pdev,
156 IORESOURCE_MEM, "ehci");
157 if (!res) {
158 dev_err(dev, "UHH EHCI get resource failed\n");
159 return -ENODEV;
160 }
161
162 regs = ioremap(res->start, resource_size(res));
163 if (!regs) {
164 dev_err(dev, "UHH EHCI ioremap failed\n");
165 return -ENOMEM;
166 }
167
168 hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
169 dev_name(dev));
170 if (!hcd) {
171 dev_err(dev, "failed to create hcd with err %d\n", ret);
172 ret = -ENOMEM;
173 goto err_io;
174 }
175
176 hcd->rsrc_start = res->start;
177 hcd->rsrc_len = resource_size(res);
178 hcd->regs = regs;
179
180 /* get ehci regulator and enable */
181 for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) {
182 if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) {
183 pdata->regulator[i] = NULL;
184 continue;
185 }
186 snprintf(supply, sizeof(supply), "hsusb%d", i);
187 pdata->regulator[i] = regulator_get(dev, supply);
188 if (IS_ERR(pdata->regulator[i])) {
189 pdata->regulator[i] = NULL;
190 dev_dbg(dev,
191 "failed to get ehci port%d regulator\n", i);
192 } else {
193 regulator_enable(pdata->regulator[i]);
194 }
195 }
196
197 /* Hold PHYs in reset while initializing EHCI controller */
198 if (pdata->phy_reset) {
199 if (gpio_is_valid(pdata->reset_gpio_port[0]))
200 gpio_set_value_cansleep(pdata->reset_gpio_port[0], 0);
201
202 if (gpio_is_valid(pdata->reset_gpio_port[1]))
203 gpio_set_value_cansleep(pdata->reset_gpio_port[1], 0);
204
205 /* Hold the PHY in RESET for enough time till DIR is high */
206 udelay(10);
207 }
208
209 pm_runtime_enable(dev);
210 pm_runtime_get_sync(dev);
211
212 /*
213 * An undocumented "feature" in the OMAP3 EHCI controller,
214 * causes suspended ports to be taken out of suspend when
215 * the USBCMD.Run/Stop bit is cleared (for example when
216 * we do ehci_bus_suspend).
217 * This breaks suspend-resume if the root-hub is allowed
218 * to suspend. Writing 1 to this undocumented register bit
219 * disables this feature and restores normal behavior.
220 */
221 ehci_write(regs, EHCI_INSNREG04,
222 EHCI_INSNREG04_DISABLE_UNSUSPEND);
223
224 /* Soft reset the PHY using PHY reset command over ULPI */
225 if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY)
226 omap_ehci_soft_phy_reset(pdev, 0);
227 if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY)
228 omap_ehci_soft_phy_reset(pdev, 1);
229
230 omap_ehci = hcd_to_ehci(hcd);
231 omap_ehci->sbrn = 0x20;
232
233 /* we know this is the memory we want, no need to ioremap again */
234 omap_ehci->caps = hcd->regs;
235 omap_ehci->regs = hcd->regs
236 + HC_LENGTH(ehci, readl(&omap_ehci->caps->hc_capbase));
237
238 dbg_hcs_params(omap_ehci, "reset");
239 dbg_hcc_params(omap_ehci, "reset");
240
241 /* cache this readonly data; minimize chip reads */
242 omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params);
243
244 ehci_reset(omap_ehci);
245 ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
246 if (ret) {
247 dev_err(dev, "failed to add hcd with err %d\n", ret);
248 goto err_add_hcd;
249 }
250
251 if (pdata->phy_reset) {
252 /* Hold the PHY in RESET for enough time till
253 * PHY is settled and ready
254 */
255 udelay(10);
256
257 if (gpio_is_valid(pdata->reset_gpio_port[0]))
258 gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1);
259
260 if (gpio_is_valid(pdata->reset_gpio_port[1]))
261 gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1);
262 }
263
264 /* root ports should always stay powered */
265 ehci_port_power(omap_ehci, 1);
266
267
268 return 0;
269
270err_add_hcd:
271 disable_put_regulator(pdata);
272 pm_runtime_put_sync(dev);
273
274err_io:
275 iounmap(regs);
276 return ret;
277}
278
279
280/**
281 * ehci_hcd_omap_remove - shutdown processing for EHCI HCDs
282 * @pdev: USB Host Controller being removed
283 *
284 * Reverses the effect of usb_ehci_hcd_omap_probe(), first invoking
285 * the HCD's stop() method. It is always called from a thread
286 * context, normally "rmmod", "apmd", or something similar.
287 */
288static int ehci_hcd_omap_remove(struct platform_device *pdev)
289{
290 struct device *dev = &pdev->dev;
291 struct usb_hcd *hcd = dev_get_drvdata(dev);
292 struct ehci_hcd_omap_platform_data *pdata = dev->platform_data;
293
294 usb_remove_hcd(hcd);
295 disable_put_regulator(dev->platform_data);
296 iounmap(hcd->regs);
297 usb_put_hcd(hcd);
298
299 pm_runtime_put_sync(dev);
300 pm_runtime_disable(dev);
301
302 if (pdata->phy_reset) {
303 if (gpio_is_valid(pdata->reset_gpio_port[0]))
304 gpio_free(pdata->reset_gpio_port[0]);
305
306 if (gpio_is_valid(pdata->reset_gpio_port[1]))
307 gpio_free(pdata->reset_gpio_port[1]);
308 }
309 return 0;
310}
311
312static void ehci_hcd_omap_shutdown(struct platform_device *pdev)
313{
314 struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev);
315
316 if (hcd->driver->shutdown)
317 hcd->driver->shutdown(hcd);
318}
319
320static struct platform_driver ehci_hcd_omap_driver = {
321 .probe = ehci_hcd_omap_probe,
322 .remove = ehci_hcd_omap_remove,
323 .shutdown = ehci_hcd_omap_shutdown,
324 /*.suspend = ehci_hcd_omap_suspend, */
325 /*.resume = ehci_hcd_omap_resume, */
326 .driver = {
327 .name = "ehci-omap",
328 }
329};
330
331/*-------------------------------------------------------------------------*/
332
333static const struct hc_driver ehci_omap_hc_driver = {
334 .description = hcd_name,
335 .product_desc = "OMAP-EHCI Host Controller",
336 .hcd_priv_size = sizeof(struct ehci_hcd),
337
338 /*
339 * generic hardware linkage
340 */
341 .irq = ehci_irq,
342 .flags = HCD_MEMORY | HCD_USB2,
343
344 /*
345 * basic lifecycle operations
346 */
347 .reset = ehci_init,
348 .start = ehci_run,
349 .stop = ehci_stop,
350 .shutdown = ehci_shutdown,
351
352 /*
353 * managing i/o requests and associated device resources
354 */
355 .urb_enqueue = ehci_urb_enqueue,
356 .urb_dequeue = ehci_urb_dequeue,
357 .endpoint_disable = ehci_endpoint_disable,
358 .endpoint_reset = ehci_endpoint_reset,
359
360 /*
361 * scheduling support
362 */
363 .get_frame_number = ehci_get_frame,
364
365 /*
366 * root hub support
367 */
368 .hub_status_data = ehci_hub_status_data,
369 .hub_control = ehci_hub_control,
370 .bus_suspend = ehci_bus_suspend,
371 .bus_resume = ehci_bus_resume,
372
373 .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
374};
375
376MODULE_ALIAS("platform:omap-ehci");
377MODULE_AUTHOR("Texas Instruments, Inc.");
378MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
379