6b13f685e
 김민수
BSP 최초 추가
|
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
|
/*
* MIPS CI13320A EHCI Host Controller driver
* Based on "ehci-au1xxx.c" by K.Boge <karsten.boge@amd.com>
*
* Copyright (C) 2012 MIPS Technologies, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/err.h>
#include <linux/platform_device.h>
static int ehci_sead3_setup(struct usb_hcd *hcd)
{
int ret;
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs + 0x100;
#ifdef __BIG_ENDIAN
ehci->big_endian_mmio = 1;
ehci->big_endian_desc = 1;
#endif
ret = ehci_setup(hcd);
if (ret)
return ret;
ehci->need_io_watchdog = 0;
/* Set burst length to 16 words. */
ehci_writel(ehci, 0x1010, &ehci->regs->reserved1[1]);
return ret;
}
const struct hc_driver ehci_sead3_hc_driver = {
.description = hcd_name,
.product_desc = "SEAD-3 EHCI",
.hcd_priv_size = sizeof(struct ehci_hcd),
/*
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
/*
* basic lifecycle operations
*
*/
.reset = ehci_sead3_setup,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
/*
* scheduling support
*/
.get_frame_number = ehci_get_frame,
/*
* root hub support
*/
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int ehci_hcd_sead3_drv_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
int ret;
if (usb_disabled())
return -ENODEV;
if (pdev->resource[1].flags != IORESOURCE_IRQ) {
pr_debug("resource[1] is not IORESOURCE_IRQ");
return -ENOMEM;
}
hcd = usb_create_hcd(&ehci_sead3_hc_driver, &pdev->dev, "SEAD-3");
if (!hcd)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
hcd->regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(hcd->regs)) {
ret = PTR_ERR(hcd->regs);
goto err1;
}
/* Root hub has integrated TT. */
hcd->has_tt = 1;
ret = usb_add_hcd(hcd, pdev->resource[1].start,
IRQF_SHARED);
if (ret == 0) {
platform_set_drvdata(pdev, hcd);
device_wakeup_enable(hcd->self.controller);
return ret;
}
err1:
usb_put_hcd(hcd);
return ret;
}
static int ehci_hcd_sead3_drv_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
return 0;
}
#ifdef CONFIG_PM
static int ehci_hcd_sead3_drv_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
bool do_wakeup = device_may_wakeup(dev);
return ehci_suspend(hcd, do_wakeup);
}
static int ehci_hcd_sead3_drv_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
ehci_resume(hcd, false);
return 0;
}
static const struct dev_pm_ops sead3_ehci_pmops = {
.suspend = ehci_hcd_sead3_drv_suspend,
.resume = ehci_hcd_sead3_drv_resume,
};
#define SEAD3_EHCI_PMOPS (&sead3_ehci_pmops)
#else
#define SEAD3_EHCI_PMOPS NULL
#endif
static struct platform_driver ehci_hcd_sead3_driver = {
.probe = ehci_hcd_sead3_drv_probe,
.remove = ehci_hcd_sead3_drv_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "sead3-ehci",
.owner = THIS_MODULE,
.pm = SEAD3_EHCI_PMOPS,
}
};
MODULE_ALIAS("platform:sead3-ehci");
|