blob: cd6e1f81508d2351152094f9c7d24a95fce4a848 (
plain)
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
|
/*
* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
* Copyright (C) 2010 Freescale Semiconductor, Inc.
*
* 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.
*/
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.h>
#include <linux/platform_data/usb-ehci-mxc.h>
#define USBCTRL_OTGBASE_OFFSET 0x600
#define MX27_OTG_SIC_SHIFT 29
#define MX27_OTG_SIC_MASK (0x3 << MX27_OTG_SIC_SHIFT)
#define MX27_OTG_PM_BIT (1 << 24)
#define MX27_H2_SIC_SHIFT 21
#define MX27_H2_SIC_MASK (0x3 << MX27_H2_SIC_SHIFT)
#define MX27_H2_PM_BIT (1 << 16)
#define MX27_H2_DT_BIT (1 << 5)
#define MX27_H1_SIC_SHIFT 13
#define MX27_H1_SIC_MASK (0x3 << MX27_H1_SIC_SHIFT)
#define MX27_H1_PM_BIT (1 << 8)
#define MX27_H1_DT_BIT (1 << 4)
int mx27_initialize_usb_hw(int port, unsigned int flags)
{
unsigned int v;
v = readl(MX27_IO_ADDRESS(MX27_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
switch (port) {
case 0: /* OTG port */
v &= ~(MX27_OTG_SIC_MASK | MX27_OTG_PM_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_OTG_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX27_OTG_PM_BIT;
break;
case 1: /* H1 port */
v &= ~(MX27_H1_SIC_MASK | MX27_H1_PM_BIT | MX27_H1_DT_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_H1_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX27_H1_PM_BIT;
if (!(flags & MXC_EHCI_TTL_ENABLED))
v |= MX27_H1_DT_BIT;
break;
case 2: /* H2 port */
v &= ~(MX27_H2_SIC_MASK | MX27_H2_PM_BIT | MX27_H2_DT_BIT);
v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_H2_SIC_SHIFT;
if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
v |= MX27_H2_PM_BIT;
if (!(flags & MXC_EHCI_TTL_ENABLED))
v |= MX27_H2_DT_BIT;
break;
default:
return -EINVAL;
}
writel(v, MX27_IO_ADDRESS(MX27_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
return 0;
}
|
