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
188
189
190
191
192
193
194
|
/*
* Atheros AR71xx USB host device support
*
* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
*
* 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/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <asm/mach-ar71xx/ar71xx.h>
#include <asm/mach-ar71xx/platform.h>
#include "dev-usb.h"
/*
* OHCI (USB full speed host controller)
*/
static struct resource ar71xx_ohci_resources[] = {
[0] = {
.start = AR71XX_OHCI_BASE,
.end = AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AR71XX_MISC_IRQ_OHCI,
.end = AR71XX_MISC_IRQ_OHCI,
.flags = IORESOURCE_IRQ,
},
};
static struct resource ar7240_ohci_resources[] = {
[0] = {
.start = AR7240_OHCI_BASE,
.end = AR7240_OHCI_BASE + AR7240_OHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AR71XX_CPU_IRQ_USB,
.end = AR71XX_CPU_IRQ_USB,
.flags = IORESOURCE_IRQ,
},
};
static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
static struct platform_device ar71xx_ohci_device = {
.name = "ar71xx-ohci",
.id = -1,
.resource = ar71xx_ohci_resources,
.num_resources = ARRAY_SIZE(ar71xx_ohci_resources),
.dev = {
.dma_mask = &ar71xx_ohci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
/*
* EHCI (USB full speed host controller)
*/
static struct resource ar71xx_ehci_resources[] = {
[0] = {
.start = AR71XX_EHCI_BASE,
.end = AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = AR71XX_CPU_IRQ_USB,
.end = AR71XX_CPU_IRQ_USB,
.flags = IORESOURCE_IRQ,
},
};
static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
static struct ar71xx_ehci_platform_data ar71xx_ehci_data;
static struct platform_device ar71xx_ehci_device = {
.name = "ar71xx-ehci",
.id = -1,
.resource = ar71xx_ehci_resources,
.num_resources = ARRAY_SIZE(ar71xx_ehci_resources),
.dev = {
.dma_mask = &ar71xx_ehci_dmamask,
.coherent_dma_mask = DMA_BIT_MASK(32),
.platform_data = &ar71xx_ehci_data,
},
};
#define AR71XX_USB_RESET_MASK \
(RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
| RESET_MODULE_USB_OHCI_DLL)
#define AR7240_USB_RESET_MASK \
(RESET_MODULE_USB_HOST | RESET_MODULE_USB_OHCI_DLL_7240)
static void __init ar71xx_usb_setup(void)
{
ar71xx_device_stop(AR71XX_USB_RESET_MASK);
mdelay(1000);
ar71xx_device_start(AR71XX_USB_RESET_MASK);
/* Turning on the Buff and Desc swap bits */
ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
/* WAR for HW bug. Here it adjusts the duration between two SOFS */
ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
mdelay(900);
platform_device_register(&ar71xx_ohci_device);
platform_device_register(&ar71xx_ehci_device);
}
static void __init ar7240_usb_setup(void)
{
ar71xx_device_stop(AR7240_USB_RESET_MASK);
mdelay(1000);
ar71xx_device_start(AR7240_USB_RESET_MASK);
/* WAR for HW bug. Here it adjusts the duration between two SOFS */
ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x3);
ar71xx_ohci_device.resource = ar7240_ohci_resources;
ar71xx_ohci_device.num_resources = ARRAY_SIZE(ar7240_ohci_resources);
platform_device_register(&ar71xx_ohci_device);
}
static void __init ar7241_usb_setup(void)
{
ar71xx_device_start(AR724X_RESET_USBSUS_OVERRIDE);
mdelay(10);
ar71xx_device_start(AR724X_RESET_USB_HOST);
mdelay(10);
ar71xx_device_start(AR724X_RESET_USB_PHY);
mdelay(10);
ar71xx_ehci_data.is_ar91xx = 1;
ar71xx_ehci_device.resource = ar7240_ohci_resources;
ar71xx_ehci_device.num_resources = ARRAY_SIZE(ar7240_ohci_resources);
platform_device_register(&ar71xx_ehci_device);
}
static void __init ar91xx_usb_setup(void)
{
ar71xx_device_stop(RESET_MODULE_USBSUS_OVERRIDE);
mdelay(10);
ar71xx_device_start(RESET_MODULE_USB_HOST);
mdelay(10);
ar71xx_device_start(RESET_MODULE_USB_PHY);
mdelay(10);
ar71xx_ehci_data.is_ar91xx = 1;
platform_device_register(&ar71xx_ehci_device);
}
void __init ar71xx_add_device_usb(void)
{
switch (ar71xx_soc) {
case AR71XX_SOC_AR7240:
ar7240_usb_setup();
break;
case AR71XX_SOC_AR7241:
case AR71XX_SOC_AR7242:
ar7241_usb_setup();
break;
case AR71XX_SOC_AR7130:
case AR71XX_SOC_AR7141:
case AR71XX_SOC_AR7161:
ar71xx_usb_setup();
break;
case AR71XX_SOC_AR9130:
case AR71XX_SOC_AR9132:
ar91xx_usb_setup();
break;
default:
BUG();
}
}
|
