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
|
/*
* Copyright 2005-2009 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
#include <asm/mach-types.h>
#include <mach/arc_otg.h>
#include "usb.h"
#include "iomux.h"
/*
* USB Host2 HS port
*/
static int gpio_usbh2_active(void)
{
/* Set USBH2_STP to GPIO and toggle it */
mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_GPIO);
gpio_request(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), "eim_a26");
gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 0);
gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 1);
msleep(100);
return 0;
}
void gpio_usbh2_setback_stp(void)
{
/* setback USBH2_STP to be function */
mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2);
}
EXPORT_SYMBOL(gpio_usbh2_setback_stp);
static void gpio_usbh2_inactive(void)
{
gpio_free(IOMUX_TO_GPIO(MX51_PIN_EIM_A26));
mxc_free_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_GPIO);
}
static struct fsl_usb2_platform_data usbh2_config = {
.name = "Host 2",
.platform_init = fsl_usb_host_init,
.platform_uninit = fsl_usb_host_uninit,
.operating_mode = FSL_USB2_MPH_HOST,
.phy_mode = FSL_USB2_PHY_ULPI,
.power_budget = 500, /* 500 mA max power */
.gpio_usb_active = gpio_usbh2_active,
.gpio_usb_inactive = gpio_usbh2_inactive,
.transceiver = "isp1504",
};
static struct resource usbh2_resources[] = {
[0] = {
.start = (u32) (USB_H2REGS_BASE),
.end = (u32) (USB_H2REGS_BASE + 0x1ff),
.flags = IORESOURCE_MEM,
},
[1] = {
.start = MXC_INT_USB_H2,
.flags = IORESOURCE_IRQ,
},
};
static int __init usbh2_init(void)
{
pr_debug("%s: \n", __func__);
if (machine_is_mx51_3ds() ||
(machine_is_mx51_babbage() && (cpu_is_mx51_rev(CHIP_REV_2_0) >= 1)))
return 0;
host_pdev_register(usbh2_resources, ARRAY_SIZE(usbh2_resources),
&usbh2_config);
return 0;
}
module_init(usbh2_init);
|
