aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-s3c2410/mach-n30.c
blob: bd15998c129bcc12d6e12716f2ff929a17c82478 (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
/* linux/arch/arm/mach-s3c2410/mach-n30.c
 *
 * Copyright (c) 2003-2005 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *
 * Copyright (c) 2005 Christer Weinigel <christer@weinigel.se>
 *
 * There is a wiki with more information about the n30 port at
 * http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
 *
 * 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/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/kthread.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <asm/hardware.h>
#include <asm/hardware/iomd.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mach-types.h>

#include <asm/arch/regs-serial.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/iic.h>

#include <linux/serial_core.h>

#include "s3c2410.h"
#include "clock.h"
#include "devs.h"
#include "cpu.h"

static struct map_desc n30_iodesc[] __initdata = {
	/* nothing here yet */
};

static struct s3c2410_uartcfg n30_uartcfgs[] = {
	/* Normal serial port */
	[0] = {
		.hwport	     = 0,
		.flags	     = 0,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
	/* IR port */
	[1] = {
		.hwport	     = 1,
		.flags	     = 0,
		.uart_flags  = UPF_CONS_FLOW,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x43,
		.ufcon	     = 0x51,
	},
	/* The BlueTooth controller is connected to port 2 */
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
};

static struct platform_device *n30_devices[] __initdata = {
	&s3c_device_usb,
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c,
	&s3c_device_iis,
	&s3c_device_usbgadget,
};

static struct s3c2410_platform_i2c n30_i2ccfg = {
	.flags		= 0,
	.slave_addr	= 0x10,
	.bus_freq	= 10*1000,
	.max_freq	= 10*1000,
};

static struct s3c24xx_board n30_board __initdata = {
	.devices       = n30_devices,
	.devices_count = ARRAY_SIZE(n30_devices)
};

void __init n30_map_io(void)
{
	s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
	s3c24xx_init_clocks(0);
	s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
	s3c24xx_set_board(&n30_board);
}

void __init n30_init_irq(void)
{
	s3c24xx_init_irq();
}


static int n30_usbstart_thread(void *unused)
{
	/* Turn off suspend on both USB ports, and switch the
	 * selectable USB port to USB device mode. */
	writel(readl(S3C2410_MISCCR) & ~0x00003008, S3C2410_MISCCR);

	/* Turn off the D+ pull up for 3 seconds so that the USB host
	 * at the other end will do a rescan of the USB bus.  */
	s3c2410_gpio_setpin(S3C2410_GPB3, 0);

	msleep_interruptible(3*HZ);

	s3c2410_gpio_setpin(S3C2410_GPB3, 1);

	return 0;
}


void __init n30_init(void)
{
	s3c_device_i2c.dev.platform_data = &n30_i2ccfg;

	kthread_run(n30_usbstart_thread, NULL, "n30_usbstart");
}

MACHINE_START(N30, "Acer-N30")
     MAINTAINER("Christer Weinigel <christer@weinigel.se>, Ben Dooks <ben-linux@fluff.org>")
     BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, (u32)S3C24XX_VA_UART)
     BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)

	.timer		= &s3c24xx_timer,
	.init_machine	= n30_init,
	.init_irq	= n30_init_irq,
	.map_io		= n30_map_io,
MACHINE_END

/*
    Local variables:
        compile-command: "make ARCH=arm CROSS_COMPILE=/usr/local/arm/3.3.2/bin/arm-linux- -k -C ../../.."
        c-basic-offset: 8
    End:
*/