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
|
/*
* omap iommu: omap device registration
*
* Copyright (C) 2008-2009 Nokia Corporation
*
* Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <plat/iommu.h>
#include <plat/irqs.h>
struct iommu_device {
resource_size_t base;
int irq;
struct iommu_platform_data pdata;
struct resource res[2];
};
static struct iommu_device *devices;
static int num_iommu_devices;
#ifdef CONFIG_ARCH_OMAP3
static struct iommu_device omap3_devices[] = {
{
.base = 0x480bd400,
.irq = 24,
.pdata = {
.name = "isp",
.nr_tlb_entries = 8,
.clk_name = "cam_ick",
},
},
#if defined(CONFIG_MPU_BRIDGE_IOMMU)
{
.base = 0x5d000000,
.irq = 28,
.pdata = {
.name = "iva2",
.nr_tlb_entries = 32,
.clk_name = "iva2_ck",
},
},
#endif
};
#define NR_OMAP3_IOMMU_DEVICES ARRAY_SIZE(omap3_devices)
static struct platform_device *omap3_iommu_pdev[NR_OMAP3_IOMMU_DEVICES];
#else
#define omap3_devices NULL
#define NR_OMAP3_IOMMU_DEVICES 0
#define omap3_iommu_pdev NULL
#endif
#ifdef CONFIG_ARCH_OMAP4
static struct iommu_device omap4_devices[] = {
{
.base = OMAP4_MMU1_BASE,
.irq = OMAP44XX_IRQ_DUCATI_MMU,
.pdata = {
.name = "ducati",
.nr_tlb_entries = 32,
.clk_name = "ducati_ick",
},
},
#if defined(CONFIG_MPU_TESLA_IOMMU)
{
.base = OMAP4_MMU2_BASE,
.irq = INT_44XX_DSP_MMU,
.pdata = {
.name = "tesla",
.nr_tlb_entries = 32,
.clk_name = "tesla_ick",
},
},
#endif
};
#define NR_OMAP4_IOMMU_DEVICES ARRAY_SIZE(omap4_devices)
static struct platform_device *omap4_iommu_pdev[NR_OMAP4_IOMMU_DEVICES];
#else
#define omap4_devices NULL
#define NR_OMAP4_IOMMU_DEVICES 0
#define omap4_iommu_pdev NULL
#endif
static struct platform_device **omap_iommu_pdev;
static int __init omap_iommu_init(void)
{
int i, err;
struct resource res[] = {
{ .flags = IORESOURCE_MEM },
{ .flags = IORESOURCE_IRQ },
};
if (cpu_is_omap34xx()) {
devices = omap3_devices;
omap_iommu_pdev = omap3_iommu_pdev;
num_iommu_devices = NR_OMAP3_IOMMU_DEVICES;
} else if (cpu_is_omap44xx()) {
devices = omap4_devices;
omap_iommu_pdev = omap4_iommu_pdev;
num_iommu_devices = NR_OMAP4_IOMMU_DEVICES;
} else
return -ENODEV;
for (i = 0; i < num_iommu_devices; i++) {
struct platform_device *pdev;
const struct iommu_device *d = &devices[i];
pdev = platform_device_alloc("omap-iommu", i);
if (!pdev) {
err = -ENOMEM;
goto err_out;
}
res[0].start = d->base;
res[0].end = d->base + MMU_REG_SIZE - 1;
res[1].start = res[1].end = d->irq;
err = platform_device_add_resources(pdev, res,
ARRAY_SIZE(res));
if (err)
goto err_out;
err = platform_device_add_data(pdev, &d->pdata,
sizeof(d->pdata));
if (err)
goto err_out;
err = platform_device_add(pdev);
if (err)
goto err_out;
omap_iommu_pdev[i] = pdev;
}
return 0;
err_out:
while (i--)
platform_device_put(omap_iommu_pdev[i]);
return err;
}
module_init(omap_iommu_init);
static void __exit omap_iommu_exit(void)
{
int i;
for (i = 0; i < num_iommu_devices; i++)
platform_device_unregister(omap_iommu_pdev[i]);
}
module_exit(omap_iommu_exit);
MODULE_AUTHOR("Hiroshi DOYU");
MODULE_DESCRIPTION("omap iommu: omap device registration");
MODULE_LICENSE("GPL v2");
|
