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
|
/*
* Copyright (C) 2009 Texas Instruments Inc.
* Mikkel Christensen <mlc@ti.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/kernel.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/serial_8250.h>
#include <linux/smsc911x.h>
#include <linux/interrupt.h>
#include <plat/gpmc.h>
#define ZOOM2_SMSC911X_CS 7
#define ZOOM2_SMSC911X_GPIO 158
#define ZOOM2_QUADUART_CS 3
#define ZOOM2_QUADUART_GPIO 102
#define QUART_CLK 1843200
#define DEBUG_BASE 0x08000000
#define ZOOM2_ETHR_START DEBUG_BASE
static struct resource zoom2_smsc911x_resources[] = {
[0] = {
.start = ZOOM2_ETHR_START,
.end = ZOOM2_ETHR_START + SZ_4K,
.flags = IORESOURCE_MEM,
},
[1] = {
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
static struct smsc911x_platform_config zoom2_smsc911x_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.flags = SMSC911X_USE_32BIT,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct platform_device zoom2_smsc911x_device = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(zoom2_smsc911x_resources),
.resource = zoom2_smsc911x_resources,
.dev = {
.platform_data = &zoom2_smsc911x_config,
},
};
static inline void __init zoom2_init_smsc911x(void)
{
int eth_cs;
unsigned long cs_mem_base;
int eth_gpio = 0;
eth_cs = ZOOM2_SMSC911X_CS;
if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
return;
}
zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0;
zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff;
eth_gpio = ZOOM2_SMSC911X_GPIO;
zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
eth_gpio);
return;
}
gpio_direction_input(eth_gpio);
}
static struct plat_serial8250_port serial_platform_data[] = {
{
.mapbase = 0x10000000,
.irq = OMAP_GPIO_IRQ(102),
.flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
.irqflags = IRQF_SHARED | IRQF_TRIGGER_RISING,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = QUART_CLK,
}, {
.flags = 0
}
};
static struct platform_device zoom2_debugboard_serial_device = {
.name = "serial8250",
.id = 3,
.dev = {
.platform_data = serial_platform_data,
},
};
static inline void __init zoom2_init_quaduart(void)
{
int quart_cs;
unsigned long cs_mem_base;
int quart_gpio = 0;
quart_cs = ZOOM2_QUADUART_CS;
if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
printk(KERN_ERR "Failed to request GPMC mem"
"for Quad UART(TL16CP754C)\n");
return;
}
quart_gpio = ZOOM2_QUADUART_GPIO;
if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
quart_gpio);
return;
}
gpio_direction_input(quart_gpio);
}
static inline int omap_zoom2_debugboard_detect(void)
{
int debug_board_detect = 0;
int ret = 1;
debug_board_detect = ZOOM2_SMSC911X_GPIO;
if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug"
"board detect\n", debug_board_detect);
return 0;
}
gpio_direction_input(debug_board_detect);
if (!gpio_get_value(debug_board_detect)) {
ret = 0;
}
gpio_free(debug_board_detect);
return ret;
}
static struct platform_device *zoom2_devices[] __initdata = {
&zoom2_smsc911x_device,
&zoom2_debugboard_serial_device,
};
int __init omap_zoom2_debugboard_init(void)
{
if (!omap_zoom2_debugboard_detect())
return 0;
zoom2_init_smsc911x();
zoom2_init_quaduart();
return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
}
|
