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
|
/**
* dwc3-pci.c - PCI Specific glue layer
*
* Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
*
* Authors: Felipe Balbi <balbi@ti.com>,
* Sebastian Andrzej Siewior <bigeasy@linutronix.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 of
* the License as published by the Free Software Foundation.
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include "platform_data.h"
/* FIXME define these in <linux/pci_ids.h> */
#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
#define PCI_DEVICE_ID_INTEL_BYT 0x0f37
#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e
#define PCI_DEVICE_ID_INTEL_BSW 0x22B7
#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30
#define PCI_DEVICE_ID_INTEL_SPTH 0xa130
static int dwc3_pci_quirks(struct pci_dev *pdev)
{
if (pdev->vendor == PCI_VENDOR_ID_AMD &&
pdev->device == PCI_DEVICE_ID_AMD_NL_USB) {
struct dwc3_platform_data pdata;
memset(&pdata, 0, sizeof(pdata));
pdata.has_lpm_erratum = true;
pdata.lpm_nyet_threshold = 0xf;
pdata.u2exit_lfps_quirk = true;
pdata.u2ss_inp3_quirk = true;
pdata.req_p1p2p3_quirk = true;
pdata.del_p1p2p3_quirk = true;
pdata.del_phy_power_chg_quirk = true;
pdata.lfps_filter_quirk = true;
pdata.rx_detect_poll_quirk = true;
pdata.tx_de_emphasis_quirk = true;
pdata.tx_de_emphasis = 1;
/*
* FIXME these quirks should be removed when AMD NL
* taps out
*/
pdata.disable_scramble_quirk = true;
pdata.dis_u3_susphy_quirk = true;
pdata.dis_u2_susphy_quirk = true;
return platform_device_add_data(pci_get_drvdata(pdev), &pdata,
sizeof(pdata));
}
return 0;
}
static int dwc3_pci_probe(struct pci_dev *pci,
const struct pci_device_id *id)
{
struct resource res[2];
struct platform_device *dwc3;
int ret;
struct device *dev = &pci->dev;
ret = pcim_enable_device(pci);
if (ret) {
dev_err(dev, "failed to enable pci device\n");
return -ENODEV;
}
pci_set_master(pci);
dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
if (!dwc3) {
dev_err(dev, "couldn't allocate dwc3 device\n");
return -ENOMEM;
}
memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
res[0].start = pci_resource_start(pci, 0);
res[0].end = pci_resource_end(pci, 0);
res[0].name = "dwc_usb3";
res[0].flags = IORESOURCE_MEM;
res[1].start = pci->irq;
res[1].name = "dwc_usb3";
res[1].flags = IORESOURCE_IRQ;
ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
if (ret) {
dev_err(dev, "couldn't add resources to dwc3 device\n");
return ret;
}
pci_set_drvdata(pci, dwc3);
ret = dwc3_pci_quirks(pci);
if (ret)
goto err;
dwc3->dev.parent = dev;
ret = platform_device_add(dwc3);
if (ret) {
dev_err(dev, "failed to register dwc3 device\n");
goto err;
}
return 0;
err:
platform_device_put(dwc3);
return ret;
}
static void dwc3_pci_remove(struct pci_dev *pci)
{
platform_device_unregister(pci_get_drvdata(pci));
}
static const struct pci_device_id dwc3_pci_id_table[] = {
{
PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
},
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), },
{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), },
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
static struct pci_driver dwc3_pci_driver = {
.name = "dwc3-pci",
.id_table = dwc3_pci_id_table,
.probe = dwc3_pci_probe,
.remove = dwc3_pci_remove,
};
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
module_pci_driver(dwc3_pci_driver);
|
