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
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
|
/*
* linux/arch/arm/mach-omap1/board-voiceblue.c
*
* Modified from board-generic.c
*
* Copyright (C) 2004 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
*
* Code for OMAP5910 based VoiceBlue board (VoIP to GSM gateway).
*
* 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/delay.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/gpio.h>
#include <mach/mux.h>
#include <mach/tc.h>
#include <mach/usb.h>
static struct plat_serial8250_port voiceblue_ports[] = {
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x40000),
.irq = OMAP_GPIO_IRQ(12),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x50000),
.irq = OMAP_GPIO_IRQ(13),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x60000),
.irq = OMAP_GPIO_IRQ(14),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{
.mapbase = (unsigned long)(OMAP_CS1_PHYS + 0x70000),
.irq = OMAP_GPIO_IRQ(15),
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = 3686400,
},
{ },
};
static struct platform_device serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM1,
.dev = {
.platform_data = voiceblue_ports,
},
};
static int __init ext_uart_init(void)
{
return platform_device_register(&serial_device);
}
arch_initcall(ext_uart_init);
static struct flash_platform_data voiceblue_flash_data = {
.map_name = "cfi_probe",
.width = 2,
};
static struct resource voiceblue_flash_resource = {
.start = OMAP_CS0_PHYS,
.end = OMAP_CS0_PHYS + SZ_32M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device voiceblue_flash_device = {
.name = "omapflash",
.id = 0,
.dev = {
.platform_data = &voiceblue_flash_data,
},
.num_resources = 1,
.resource = &voiceblue_flash_resource,
};
static struct resource voiceblue_smc91x_resources[] = {
[0] = {
.start = OMAP_CS2_PHYS + 0x300,
.end = OMAP_CS2_PHYS + 0x300 + 16,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = OMAP_GPIO_IRQ(8),
.end = OMAP_GPIO_IRQ(8),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
},
};
static struct platform_device voiceblue_smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(voiceblue_smc91x_resources),
.resource = voiceblue_smc91x_resources,
};
static struct platform_device *voiceblue_devices[] __initdata = {
&voiceblue_flash_device,
&voiceblue_smc91x_device,
};
static struct omap_usb_config voiceblue_usb_config __initdata = {
.hmc_mode = 3,
.register_host = 1,
.register_dev = 1,
.pins[0] = 2,
.pins[1] = 6,
.pins[2] = 6,
};
static struct omap_uart_config voiceblue_uart_config __initdata = {
.enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
};
static struct omap_board_config_kernel voiceblue_config[] = {
{ OMAP_TAG_USB, &voiceblue_usb_config },
{ OMAP_TAG_UART, &voiceblue_uart_config },
};
static void __init voiceblue_init_irq(void)
{
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
}
static void __init voiceblue_init(void)
{
/* Watchdog */
gpio_request(0, "Watchdog");
/* smc91x reset */
gpio_request(7, "SMC91x reset");
gpio_direction_output(7, 1);
udelay(2); /* wait at least 100ns */
gpio_set_value(7, 0);
mdelay(50); /* 50ms until PHY ready */
/* smc91x interrupt pin */
gpio_request(8, "SMC91x irq");
/* 16C554 reset*/
gpio_request(6, "16C554 reset");
gpio_direction_output(6, 0);
/* 16C554 interrupt pins */
gpio_request(12, "16C554 irq");
gpio_request(13, "16C554 irq");
gpio_request(14, "16C554 irq");
gpio_request(15, "16C554 irq");
set_irq_type(gpio_to_irq(12), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(13), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(14), IRQ_TYPE_EDGE_RISING);
set_irq_type(gpio_to_irq(15), IRQ_TYPE_EDGE_RISING);
platform_add_devices(voiceblue_devices, ARRAY_SIZE(voiceblue_devices));
omap_board_config = voiceblue_config;
omap_board_config_size = ARRAY_SIZE(voiceblue_config);
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
/* There is a good chance board is going up, so enable power LED
* (it is connected through invertor) */
omap_writeb(0x00, OMAP_LPG1_LCR);
omap_writeb(0x00, OMAP_LPG1_PMR); /* Disable clock */
}
static void __init voiceblue_map_io(void)
{
omap1_map_common_io();
}
#define MACHINE_PANICED 1
#define MACHINE_REBOOTING 2
#define MACHINE_REBOOT 4
static unsigned long machine_state;
static int panic_event(struct notifier_block *this, unsigned long event,
void *ptr)
{
if (test_and_set_bit(MACHINE_PANICED, &machine_state))
return NOTIFY_DONE;
/* Flash power LED */
omap_writeb(0x78, OMAP_LPG1_LCR);
omap_writeb(0x01, OMAP_LPG1_PMR); /* Enable clock */
return NOTIFY_DONE;
}
static struct notifier_block panic_block = {
.notifier_call = panic_event,
};
static int __init voiceblue_setup(void)
{
/* Setup panic notifier */
atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
return 0;
}
postcore_initcall(voiceblue_setup);
static int wdt_gpio_state;
void voiceblue_wdt_enable(void)
{
gpio_direction_output(0, 0);
gpio_set_value(0, 1);
gpio_set_value(0, 0);
wdt_gpio_state = 0;
}
void voiceblue_wdt_disable(void)
{
gpio_set_value(0, 0);
gpio_set_value(0, 1);
gpio_set_value(0, 0);
gpio_direction_input(0);
}
void voiceblue_wdt_ping(void)
{
if (test_bit(MACHINE_REBOOT, &machine_state))
return;
wdt_gpio_state = !wdt_gpio_state;
gpio_set_value(0, wdt_gpio_state);
}
void voiceblue_reset(void)
{
set_bit(MACHINE_REBOOT, &machine_state);
voiceblue_wdt_enable();
while (1) ;
}
EXPORT_SYMBOL(voiceblue_wdt_enable);
EXPORT_SYMBOL(voiceblue_wdt_disable);
EXPORT_SYMBOL(voiceblue_wdt_ping);
MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
/* Maintainer: Ladislav Michl <michl@2n.cz> */
.phys_io = 0xfff00000,
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
.boot_params = 0x10000100,
.map_io = voiceblue_map_io,
.init_irq = voiceblue_init_irq,
.init_machine = voiceblue_init,
.timer = &omap_timer,
MACHINE_END
|
