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
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Synopsys G210 Test Chip driver
*
* Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
*
* Authors: Joao Pinto <jpinto@synopsys.com>
*/
#include <ufs/ufshcd.h>
#include "ufshcd-dwc.h"
#include "tc-dwc-g210.h"
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/pm_runtime.h>
/* Test Chip type expected values */
#define TC_G210_20BIT 20
#define TC_G210_40BIT 40
#define TC_G210_INV 0
static int tc_type = TC_G210_INV;
module_param(tc_type, int, 0);
MODULE_PARM_DESC(tc_type, "Test Chip Type (20 = 20-bit, 40 = 40-bit)");
/*
* struct ufs_hba_dwc_vops - UFS DWC specific variant operations
*/
static struct ufs_hba_variant_ops tc_dwc_g210_pci_hba_vops = {
.name = "tc-dwc-g210-pci",
.link_startup_notify = ufshcd_dwc_link_startup_notify,
};
/**
* tc_dwc_g210_pci_remove - de-allocate PCI/SCSI host and host memory space
* data structure memory
* @pdev: pointer to PCI handle
*/
static void tc_dwc_g210_pci_remove(struct pci_dev *pdev)
{
struct ufs_hba *hba = pci_get_drvdata(pdev);
pm_runtime_forbid(&pdev->dev);
pm_runtime_get_noresume(&pdev->dev);
ufshcd_remove(hba);
}
/**
* tc_dwc_g210_pci_probe - probe routine of the driver
* @pdev: pointer to PCI device handle
* @id: PCI device id
*
* Returns 0 on success, non-zero value on failure
*/
static int
tc_dwc_g210_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct ufs_hba *hba;
void __iomem *mmio_base;
int err;
/* Check Test Chip type and set the specific setup routine */
if (tc_type == TC_G210_20BIT) {
tc_dwc_g210_pci_hba_vops.phy_initialization =
tc_dwc_g210_config_20_bit;
} else if (tc_type == TC_G210_40BIT) {
tc_dwc_g210_pci_hba_vops.phy_initialization =
tc_dwc_g210_config_40_bit;
} else {
dev_err(&pdev->dev, "test chip version not specified\n");
return -EPERM;
}
err = pcim_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "pcim_enable_device failed\n");
return err;
}
pci_set_master(pdev);
err = pcim_iomap_regions(pdev, 1 << 0, UFSHCD);
if (err < 0) {
dev_err(&pdev->dev, "request and iomap failed\n");
return err;
}
mmio_base = pcim_iomap_table(pdev)[0];
err = ufshcd_alloc_host(&pdev->dev, &hba);
if (err) {
dev_err(&pdev->dev, "Allocation failed\n");
return err;
}
hba->vops = &tc_dwc_g210_pci_hba_vops;
err = ufshcd_init(hba, mmio_base, pdev->irq);
if (err) {
dev_err(&pdev->dev, "Initialization failed\n");
return err;
}
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_allow(&pdev->dev);
return 0;
}
static const struct dev_pm_ops tc_dwc_g210_pci_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(ufshcd_system_suspend, ufshcd_system_resume)
SET_RUNTIME_PM_OPS(ufshcd_runtime_suspend, ufshcd_runtime_resume, NULL)
.prepare = ufshcd_suspend_prepare,
.complete = ufshcd_resume_complete,
};
static const struct pci_device_id tc_dwc_g210_pci_tbl[] = {
{ PCI_VENDOR_ID_SYNOPSYS, 0xB101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ PCI_VENDOR_ID_SYNOPSYS, 0xB102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, tc_dwc_g210_pci_tbl);
static struct pci_driver tc_dwc_g210_pci_driver = {
.name = "tc-dwc-g210-pci",
.id_table = tc_dwc_g210_pci_tbl,
.probe = tc_dwc_g210_pci_probe,
.remove = tc_dwc_g210_pci_remove,
.driver = {
.pm = &tc_dwc_g210_pci_pm_ops
},
};
module_pci_driver(tc_dwc_g210_pci_driver);
MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>");
MODULE_DESCRIPTION("Synopsys Test Chip G210 PCI glue driver");
MODULE_LICENSE("Dual BSD/GPL");
|
