Merge 'drm-3264' branch of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/airlied...
[linux-2.6] / arch / arm / mach-s3c2410 / mach-n30.c
1 /* linux/arch/arm/mach-s3c2410/mach-n30.c
2  *
3  * Copyright (c) 2003-2005 Simtec Electronics
4  *      Ben Dooks <ben@simtec.co.uk>
5  *
6  * Copyright (c) 2005 Christer Weinigel <christer@weinigel.se>
7  *
8  * There is a wiki with more information about the n30 port at
9  * http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License version 2 as
13  * published by the Free Software Foundation.
14 */
15
16 #include <linux/kernel.h>
17 #include <linux/types.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/timer.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
23 #include <linux/device.h>
24 #include <linux/kthread.h>
25
26 #include <asm/mach/arch.h>
27 #include <asm/mach/map.h>
28 #include <asm/mach/irq.h>
29
30 #include <asm/hardware.h>
31 #include <asm/hardware/iomd.h>
32 #include <asm/io.h>
33 #include <asm/irq.h>
34 #include <asm/mach-types.h>
35
36 #include <asm/arch/regs-serial.h>
37 #include <asm/arch/regs-gpio.h>
38 #include <asm/arch/iic.h>
39
40 #include <linux/serial_core.h>
41
42 #include "s3c2410.h"
43 #include "clock.h"
44 #include "devs.h"
45 #include "cpu.h"
46
47 static struct map_desc n30_iodesc[] __initdata = {
48         /* nothing here yet */
49 };
50
51 static struct s3c2410_uartcfg n30_uartcfgs[] = {
52         /* Normal serial port */
53         [0] = {
54                 .hwport      = 0,
55                 .flags       = 0,
56                 .ucon        = 0x2c5,
57                 .ulcon       = 0x03,
58                 .ufcon       = 0x51,
59         },
60         /* IR port */
61         [1] = {
62                 .hwport      = 1,
63                 .flags       = 0,
64                 .uart_flags  = UPF_CONS_FLOW,
65                 .ucon        = 0x2c5,
66                 .ulcon       = 0x43,
67                 .ufcon       = 0x51,
68         },
69         /* The BlueTooth controller is connected to port 2 */
70         [2] = {
71                 .hwport      = 2,
72                 .flags       = 0,
73                 .ucon        = 0x2c5,
74                 .ulcon       = 0x03,
75                 .ufcon       = 0x51,
76         },
77 };
78
79 static struct platform_device *n30_devices[] __initdata = {
80         &s3c_device_usb,
81         &s3c_device_lcd,
82         &s3c_device_wdt,
83         &s3c_device_i2c,
84         &s3c_device_iis,
85         &s3c_device_usbgadget,
86 };
87
88 static struct s3c2410_platform_i2c n30_i2ccfg = {
89         .flags          = 0,
90         .slave_addr     = 0x10,
91         .bus_freq       = 10*1000,
92         .max_freq       = 10*1000,
93 };
94
95 static struct s3c24xx_board n30_board __initdata = {
96         .devices       = n30_devices,
97         .devices_count = ARRAY_SIZE(n30_devices)
98 };
99
100 void __init n30_map_io(void)
101 {
102         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
103         s3c24xx_init_clocks(0);
104         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
105         s3c24xx_set_board(&n30_board);
106 }
107
108 void __init n30_init_irq(void)
109 {
110         s3c24xx_init_irq();
111 }
112
113
114 static int n30_usbstart_thread(void *unused)
115 {
116         /* Turn off suspend on both USB ports, and switch the
117          * selectable USB port to USB device mode. */
118         writel(readl(S3C2410_MISCCR) & ~0x00003008, S3C2410_MISCCR);
119
120         /* Turn off the D+ pull up for 3 seconds so that the USB host
121          * at the other end will do a rescan of the USB bus.  */
122         s3c2410_gpio_setpin(S3C2410_GPB3, 0);
123
124         msleep_interruptible(3*HZ);
125
126         s3c2410_gpio_setpin(S3C2410_GPB3, 1);
127
128         return 0;
129 }
130
131
132 void __init n30_init(void)
133 {
134         s3c_device_i2c.dev.platform_data = &n30_i2ccfg;
135
136         kthread_run(n30_usbstart_thread, NULL, "n30_usbstart");
137 }
138
139 MACHINE_START(N30, "Acer-N30")
140      MAINTAINER("Christer Weinigel <christer@weinigel.se>, Ben Dooks <ben-linux@fluff.org>")
141      BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, (u32)S3C24XX_VA_UART)
142      BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
143
144         .timer          = &s3c24xx_timer,
145         .init_machine   = n30_init,
146         .init_irq       = n30_init_irq,
147         .map_io         = n30_map_io,
148 MACHINE_END
149
150 /*
151     Local variables:
152         compile-command: "make ARCH=arm CROSS_COMPILE=/usr/local/arm/3.3.2/bin/arm-linux- -k -C ../../.."
153         c-basic-offset: 8
154     End:
155 */