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
|
/*
* linux/arch/arm/mach-omap2/usb-musb.c
*
* This file will contain the board specific details for the
* MENTOR USB OTG controller on OMAP3430
*
* Copyright (C) 2007-2008 Texas Instruments
* Copyright (C) 2008 Nokia Corporation
* Author: Vikram Pandita
*
* Generalization by:
* Felipe Balbi <felipe.balbi@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/types.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/usb/musb.h>
#include <mach/hardware.h>
#include <mach/irqs.h>
#include <mach/pm.h>
#include <mach/mux.h>
#include <mach/usb.h>
static struct resource musb_resources[] = {
[0] = { /* start and end set dynamically */
.flags = IORESOURCE_MEM,
},
[1] = { /* general IRQ */
.start = INT_243X_HS_USB_MC,
.flags = IORESOURCE_IRQ,
},
[2] = { /* DMA IRQ */
.start = INT_243X_HS_USB_DMA,
.flags = IORESOURCE_IRQ,
},
};
static int clk_on;
static int musb_set_clock(struct clk *clk, int state)
{
if (state) {
if (clk_on > 0)
return -ENODEV;
clk_enable(clk);
clk_on = 1;
} else {
if (clk_on == 0)
return -ENODEV;
clk_disable(clk);
clk_on = 0;
}
return 0;
}
static struct musb_hdrc_eps_bits musb_eps[] = {
{ "ep1_tx", 10, },
{ "ep1_rx", 10, },
{ "ep2_tx", 9, },
{ "ep2_rx", 9, },
{ "ep3_tx", 3, },
{ "ep3_rx", 3, },
{ "ep4_tx", 3, },
{ "ep4_rx", 3, },
{ "ep5_tx", 3, },
{ "ep5_rx", 3, },
{ "ep6_tx", 3, },
{ "ep6_rx", 3, },
{ "ep7_tx", 3, },
{ "ep7_rx", 3, },
{ "ep8_tx", 2, },
{ "ep8_rx", 2, },
{ "ep9_tx", 2, },
{ "ep9_rx", 2, },
{ "ep10_tx", 2, },
{ "ep10_rx", 2, },
{ "ep11_tx", 2, },
{ "ep11_rx", 2, },
{ "ep12_tx", 2, },
{ "ep12_rx", 2, },
{ "ep13_tx", 2, },
{ "ep13_rx", 2, },
{ "ep14_tx", 2, },
{ "ep14_rx", 2, },
{ "ep15_tx", 2, },
{ "ep15_rx", 2, },
};
static struct musb_hdrc_config musb_config = {
.multipoint = 1,
.dyn_fifo = 1,
.soft_con = 1,
.dma = 1,
.num_eps = 16,
.dma_channels = 7,
.dma_req_chan = (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
.ram_bits = 12,
.eps_bits = musb_eps,
};
static struct musb_hdrc_platform_data musb_plat = {
#ifdef CONFIG_USB_MUSB_OTG
.mode = MUSB_OTG,
#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
.mode = MUSB_HOST,
#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
.mode = MUSB_PERIPHERAL,
#endif
/* .clock is set dynamically */
.set_clock = musb_set_clock,
.config = &musb_config,
/* REVISIT charge pump on TWL4030 can supply up to
* 100 mA ... but this value is board-specific, like
* "mode", and should be passed to usb_musb_init().
*/
.power = 50, /* up to 100 mA */
};
static u64 musb_dmamask = DMA_BIT_MASK(32);
static struct platform_device musb_device = {
.name = "musb_hdrc",
.id = -1,
.dev = {
.dma_mask = &musb_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &musb_plat,
},
.num_resources = ARRAY_SIZE(musb_resources),
.resource = musb_resources,
};
#ifdef CONFIG_NOP_USB_XCEIV
static u64 nop_xceiv_dmamask = DMA_BIT_MASK(32);
static struct platform_device nop_xceiv_device = {
.name = "nop_usb_xceiv",
.id = -1,
.dev = {
.dma_mask = &nop_xceiv_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = NULL,
},
};
#endif
void __init usb_musb_init(void)
{
if (cpu_is_omap243x())
musb_resources[0].start = OMAP243X_HS_BASE;
else
musb_resources[0].start = OMAP34XX_HSUSB_OTG_BASE;
musb_resources[0].end = musb_resources[0].start + SZ_8K - 1;
/*
* REVISIT: This line can be removed once all the platforms using
* musb_core.c have been converted to use use clkdev.
*/
musb_plat.clock = "ick";
#ifdef CONFIG_NOP_USB_XCEIV
if (platform_device_register(&nop_xceiv_device) < 0) {
printk(KERN_ERR "Unable to register NOP-XCEIV device\n");
return;
}
#endif
if (platform_device_register(&musb_device) < 0) {
printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
return;
}
}
|
