aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/usb-ehci.c
blob: f1df873d59dbf881b9d6a60e01ea9dab1fc1a845 (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
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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
/*
 * linux/arch/arm/mach-omap2/usb-ehci.c
 *
 * This file will contain the board specific details for the
 * Synopsys EHCI host controller on OMAP3430
 *
 * Copyright (C) 2007 Texas Instruments
 * Author: Vikram Pandita <vikram.pandita@ti.com>
 *
 * 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 <asm/io.h>
#include <plat/mux.h>

#include <mach/hardware.h>
#include <mach/irqs.h>
#include <plat/usb.h>

#include "mux.h"

#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)

static struct resource ehci_resources[] = {
	{
		.start	= OMAP34XX_EHCI_BASE,
		.end	= OMAP34XX_EHCI_BASE + SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= OMAP34XX_UHH_CONFIG_BASE,
		.end	= OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= OMAP34XX_USBTLL_BASE,
		.end	= OMAP34XX_USBTLL_BASE + SZ_4K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{         /* general IRQ */
		.start   = INT_34XX_EHCI_IRQ,
		.flags   = IORESOURCE_IRQ,
	}
};

static u64 ehci_dmamask = ~(u32)0;
static struct platform_device ehci_device = {
	.name           = "ehci-omap",
	.id             = 0,
	.dev = {
		.dma_mask               = &ehci_dmamask,
		.coherent_dma_mask      = 0xffffffff,
		.platform_data          = NULL,
	},
	.num_resources  = ARRAY_SIZE(ehci_resources),
	.resource       = ehci_resources,
};

/* MUX settings for EHCI pins */
/*
 * setup_ehci_io_mux - initialize IO pad mux for USBHOST
 */
static void setup_ehci_io_mux(enum ehci_hcd_omap_mode *port_mode)
{
	switch (port_mode[0]) {
	case EHCI_HCD_OMAP_MODE_PHY:
		omap_mux_init_signal("hsusb1_stp", OMAP_PIN_OUTPUT);
		omap_mux_init_signal("hsusb1_clk", OMAP_PIN_OUTPUT);
		omap_mux_init_signal("hsusb1_dir", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_nxt", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data0", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data1", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data2", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data3", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data4", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data5", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data6", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_data7", OMAP_PIN_INPUT_PULLDOWN);
		break;
	case EHCI_HCD_OMAP_MODE_TLL:
		omap_mux_init_signal("hsusb1_tll_stp",
			OMAP_PIN_INPUT_PULLUP);
		omap_mux_init_signal("hsusb1_tll_clk",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_dir",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_nxt",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data0",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data1",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data2",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data3",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data4",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data5",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data6",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb1_tll_data7",
			OMAP_PIN_INPUT_PULLDOWN);
		break;
	case EHCI_HCD_OMAP_MODE_UNKNOWN:
		/* FALLTHROUGH */
	default:
		break;
	}

	switch (port_mode[1]) {
	case EHCI_HCD_OMAP_MODE_PHY:
		omap_mux_init_signal("hsusb2_stp", OMAP_PIN_OUTPUT);
		omap_mux_init_signal("hsusb2_clk", OMAP_PIN_OUTPUT);
		omap_mux_init_signal("hsusb2_dir", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_nxt", OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data0",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data1",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data2",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data3",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data4",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data5",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data6",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_data7",
			OMAP_PIN_INPUT_PULLDOWN);
		break;
	case EHCI_HCD_OMAP_MODE_TLL:
		omap_mux_init_signal("hsusb2_tll_stp",
			OMAP_PIN_INPUT_PULLUP);
		omap_mux_init_signal("hsusb2_tll_clk",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_dir",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_nxt",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data0",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data1",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data2",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data3",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data4",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data5",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data6",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb2_tll_data7",
			OMAP_PIN_INPUT_PULLDOWN);
		break;
	case EHCI_HCD_OMAP_MODE_UNKNOWN:
		/* FALLTHROUGH */
	default:
		break;
	}

	switch (port_mode[2]) {
	case EHCI_HCD_OMAP_MODE_PHY:
		printk(KERN_WARNING "Port3 can't be used in PHY mode\n");
		break;
	case EHCI_HCD_OMAP_MODE_TLL:
		omap_mux_init_signal("hsusb3_tll_stp",
			OMAP_PIN_INPUT_PULLUP);
		omap_mux_init_signal("hsusb3_tll_clk",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_dir",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_nxt",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data0",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data1",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data2",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data3",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data4",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data5",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data6",
			OMAP_PIN_INPUT_PULLDOWN);
		omap_mux_init_signal("hsusb3_tll_data7",
			OMAP_PIN_INPUT_PULLDOWN);
		break;
	case EHCI_HCD_OMAP_MODE_UNKNOWN:
		/* FALLTHROUGH */
	default:
		break;
	}

	return;
}

void __init usb_ehci_init(struct ehci_hcd_omap_platform_data *pdata)
{
	platform_device_add_data(&ehci_device, pdata, sizeof(*pdata));

	/* Setup Pin IO MUX for EHCI */
	if (cpu_is_omap34xx())
		setup_ehci_io_mux(pdata->port_mode);

	if (platform_device_register(&ehci_device) < 0) {
		printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n");
		return;
	}
}

#else

void __init usb_ehci_init(struct ehci_hcd_omap_platform_data *pdata)

{
}

#endif /* CONFIG_USB_EHCI_HCD */