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
|
/*
* Copyright (c) 2009 Wind River Systems, Inc.
* Tom Rix <Tom.Rix@windriver.com>
*
* This is file is based on
* repository git.gitorious.org/u-boot-omap3/mainline.git,
* branch omap3-dev-usb, file drivers/usb/host/omap3530_usb.c
*
* This is the unique part of its copyright :
*
* ------------------------------------------------------------------------
*
* Copyright (c) 2009 Texas Instruments
*
* ------------------------------------------------------------------------
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <asm/omap_common.h>
#include <twl4030.h>
#include <twl6030.h>
#include "omap3.h"
static int platform_needs_initialization = 1;
struct musb_config musb_cfg = {
.regs = (struct musb_regs *)MENTOR_USB0_BASE,
.timeout = OMAP3_USB_TIMEOUT,
.musb_speed = 0,
};
/*
* OMAP3 USB OTG registers.
*/
struct omap3_otg_regs {
u32 revision;
u32 sysconfig;
u32 sysstatus;
u32 interfsel;
u32 simenable;
u32 forcestdby;
};
static struct omap3_otg_regs *otg;
#define OMAP3_OTG_SYSCONFIG_SMART_STANDBY_MODE 0x2000
#define OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE 0x1000
#define OMAP3_OTG_SYSCONFIG_SMART_IDLE_MODE 0x0010
#define OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE 0x0008
#define OMAP3_OTG_SYSCONFIG_ENABLEWAKEUP 0x0004
#define OMAP3_OTG_SYSCONFIG_SOFTRESET 0x0002
#define OMAP3_OTG_SYSCONFIG_AUTOIDLE 0x0001
#define OMAP3_OTG_SYSSTATUS_RESETDONE 0x0001
/* OMAP4430 has an internal PHY, use it */
#ifdef CONFIG_OMAP4430
#define OMAP3_OTG_INTERFSEL_OMAP 0x0000
#else
#define OMAP3_OTG_INTERFSEL_OMAP 0x0001
#endif
#define OMAP3_OTG_FORCESTDBY_STANDBY 0x0001
#ifdef DEBUG_MUSB_OMAP3
static void musb_db_otg_regs(void)
{
u32 l;
l = readl(&otg->revision);
serial_printf("OTG_REVISION 0x%x\n", l);
l = readl(&otg->sysconfig);
serial_printf("OTG_SYSCONFIG 0x%x\n", l);
l = readl(&otg->sysstatus);
serial_printf("OTG_SYSSTATUS 0x%x\n", l);
l = readl(&otg->interfsel);
serial_printf("OTG_INTERFSEL 0x%x\n", l);
l = readl(&otg->forcestdby);
serial_printf("OTG_FORCESTDBY 0x%x\n", l);
}
#endif
int musb_platform_init(void)
{
int ret = -1;
if (platform_needs_initialization) {
u32 stdby;
/*
* OMAP3EVM uses ISP1504 phy and so
* twl4030 related init is not required.
*/
#ifdef CONFIG_TWL4030_USB
if (twl4030_usb_ulpi_init()) {
serial_printf("ERROR: %s Could not initialize PHY\n",
__PRETTY_FUNCTION__);
goto end;
}
#endif
#ifdef CONFIG_TWL6030_POWER
twl6030_usb_device_settings();
#endif
otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE;
/* Set OTG to always be on */
writel(OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE |
OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE, &otg->sysconfig);
/* Set the interface */
writel(OMAP3_OTG_INTERFSEL_OMAP, &otg->interfsel);
/* Clear force standby */
stdby = readl(&otg->forcestdby);
stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY;
writel(stdby, &otg->forcestdby);
#ifdef CONFIG_OMAP3_EVM
musb_cfg.extvbus = omap3_evm_need_extvbus();
#endif
#ifdef CONFIG_OMAP4430
u32 *usbotghs_control =
(u32 *)((*ctrl)->control_usbotghs_ctrl);
*usbotghs_control = 0x15;
#endif
platform_needs_initialization = 0;
}
ret = platform_needs_initialization;
#ifdef CONFIG_TWL4030_USB
end:
#endif
return ret;
}
void musb_platform_deinit(void)
{
/* noop */
}
|
