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
|
/*
* 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 <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <plat/gpmc.h>
#include <plat/gpmc-smsc911x.h>
#include <plat/serial.h>
#include <mach/board-zoom.h>
#define ZOOM_SMSC911X_CS 7
#define ZOOM_SMSC911X_GPIO 158
#define ZOOM_QUADUART_CS 3
#define ZOOM_QUADUART_GPIO 102
#define ZOOM_QUADUART_RST_GPIO 152
#define QUART_CLK 1843200
#define DEBUG_BASE 0x08000000
#define ZOOM_ETHR_START DEBUG_BASE
static struct omap_smsc911x_platform_data zoom_smsc911x_cfg = {
.cs = ZOOM_SMSC911X_CS,
.gpio_irq = ZOOM_SMSC911X_GPIO,
.gpio_reset = -EINVAL,
.flags = SMSC911X_USE_32BIT,
};
static inline void __init zoom_init_smsc911x(void)
{
gpmc_smsc911x_init(&zoom_smsc911x_cfg);
}
static struct plat_serial8250_port serial_platform_data[] = {
{
.mapbase = ZOOM_UART_BASE,
.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 zoom_debugboard_serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},
};
static inline void __init zoom_init_quaduart(void)
{
int quart_cs;
unsigned long cs_mem_base;
int quart_gpio = 0;
if (gpio_request_one(ZOOM_QUADUART_RST_GPIO,
GPIOF_OUT_INIT_LOW,
"TL16CP754C GPIO") < 0) {
pr_err("Failed to request GPIO%d for TL16CP754C\n",
ZOOM_QUADUART_RST_GPIO);
return;
}
quart_cs = ZOOM_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 = ZOOM_QUADUART_GPIO;
if (gpio_request_one(quart_gpio, GPIOF_IN, "TL16CP754C GPIO") < 0)
printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
quart_gpio);
serial_platform_data[0].irq = gpio_to_irq(102);
}
static inline int omap_zoom_debugboard_detect(void)
{
int debug_board_detect = 0;
int ret = 1;
debug_board_detect = ZOOM_SMSC911X_GPIO;
if (gpio_request_one(debug_board_detect, GPIOF_IN,
"Zoom debug board detect") < 0) {
printk(KERN_ERR "Failed to request GPIO%d for Zoom debug"
"board detect\n", debug_board_detect);
return 0;
}
if (!gpio_get_value(debug_board_detect)) {
ret = 0;
}
gpio_free(debug_board_detect);
return ret;
}
static struct platform_device *zoom_devices[] __initdata = {
&zoom_debugboard_serial_device,
};
static struct regulator_consumer_supply dummy_supplies[] = {
REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
};
int __init zoom_debugboard_init(void)
{
if (!omap_zoom_debugboard_detect())
return 0;
regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
zoom_init_smsc911x();
zoom_init_quaduart();
return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
}
|
