aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-s3c2410/mach-n30.c
blob: 476b15c089a722a456926f451b342fa2d2b45799 (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
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
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
/* Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
 * Yakumo AlphaX and Airis NC05 PDAs.
 *
 * Copyright (c) 2003-2005 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *
 * Copyright (c) 2005-2008 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/delay.h>
#include <linux/gpio_keys.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/timer.h>

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

#include <asm/arch/fb.h>
#include <asm/arch/leds-gpio.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-lcd.h>

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

#include <asm/plat-s3c/iic.h>
#include <asm/plat-s3c/regs-serial.h>

#include <asm/plat-s3c24xx/clock.h>
#include <asm/plat-s3c24xx/cpu.h>
#include <asm/plat-s3c24xx/devs.h>
#include <asm/plat-s3c24xx/s3c2410.h>
#include <asm/plat-s3c24xx/udc.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,
	},
	/* On the N30 the bluetooth controller is connected here.
	 * On the N35 and variants the GPS receiver is connected here. */
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.ucon	     = 0x2c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
};

static void n30_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
	switch (cmd)
	{
		case S3C2410_UDC_P_ENABLE :
			s3c2410_gpio_setpin(S3C2410_GPB3, 1);
			break;
		case S3C2410_UDC_P_DISABLE :
			s3c2410_gpio_setpin(S3C2410_GPB3, 0);
			break;
		case S3C2410_UDC_P_RESET :
			break;
		default:
			break;
	}
}

static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
	.udc_command		= n30_udc_pullup,
	.vbus_pin		= S3C2410_GPG1,
	.vbus_pin_inverted	= 0,
};

static struct gpio_keys_button n30_buttons[] = {
	{
		.gpio		= S3C2410_GPF0,
		.code		= KEY_POWER,
		.desc		= "Power",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG9,
		.code		= KEY_UP,
		.desc		= "Thumbwheel Up",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG8,
		.code		= KEY_DOWN,
		.desc		= "Thumbwheel Down",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG7,
		.code		= KEY_ENTER,
		.desc		= "Thumbwheel Press",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF7,
		.code		= KEY_HOMEPAGE,
		.desc		= "Home",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF6,
		.code		= KEY_CALENDAR,
		.desc		= "Calendar",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF5,
		.code		= KEY_ADDRESSBOOK,
		.desc		= "Contacts",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF4,
		.code		= KEY_MAIL,
		.desc		= "Mail",
		.active_low	= 0,
	},
};

static struct gpio_keys_platform_data n30_button_data = {
	.buttons	= n30_buttons,
	.nbuttons	= ARRAY_SIZE(n30_buttons),
};

static struct platform_device n30_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.dev		= {
		.platform_data	= &n30_button_data,
	}
};

static struct gpio_keys_button n35_buttons[] = {
	{
		.gpio		= S3C2410_GPF0,
		.code		= KEY_POWER,
		.desc		= "Power",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG9,
		.code		= KEY_UP,
		.desc		= "Joystick Up",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG8,
		.code		= KEY_DOWN,
		.desc		= "Joystick Down",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG6,
		.code		= KEY_DOWN,
		.desc		= "Joystick Left",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG5,
		.code		= KEY_DOWN,
		.desc		= "Joystick Right",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG7,
		.code		= KEY_ENTER,
		.desc		= "Joystick Press",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF7,
		.code		= KEY_HOMEPAGE,
		.desc		= "Home",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF6,
		.code		= KEY_CALENDAR,
		.desc		= "Calendar",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF5,
		.code		= KEY_ADDRESSBOOK,
		.desc		= "Contacts",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF4,
		.code		= KEY_MAIL,
		.desc		= "Mail",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPF3,
		.code		= SW_RADIO,
		.desc		= "GPS Antenna",
		.active_low	= 0,
	},
	{
		.gpio		= S3C2410_GPG2,
		.code		= SW_HEADPHONE_INSERT,
		.desc		= "Headphone",
		.active_low	= 0,
	},
};

static struct gpio_keys_platform_data n35_button_data = {
	.buttons	= n35_buttons,
	.nbuttons	= ARRAY_SIZE(n35_buttons),
};

static struct platform_device n35_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.num_resources	= 0,
	.dev		= {
		.platform_data	= &n35_button_data,
	}
};

/* This is the bluetooth LED on the device. */
static struct s3c24xx_led_platdata n30_blue_led_pdata = {
	.name		= "blue_led",
	.gpio		= S3C2410_GPG6,
	.def_trigger	= "",
};

/* This LED is driven by the battery microcontroller, and is blinking
 * red, blinking green or solid green when the battery is low,
 * charging or full respectively.  By driving GPD9 low, it's possible
 * to force the LED to blink red, so call that warning LED.  */
static struct s3c24xx_led_platdata n30_warning_led_pdata = {
	.name		= "warning_led",
	.flags          = S3C24XX_LEDF_ACTLOW,
	.gpio		= S3C2410_GPD9,
	.def_trigger	= "",
};

static struct platform_device n30_blue_led = {
	.name		= "s3c24xx_led",
	.id		= 1,
	.dev		= {
		.platform_data	= &n30_blue_led_pdata,
	},
};

static struct platform_device n30_warning_led = {
	.name		= "s3c24xx_led",
	.id		= 2,
	.dev		= {
		.platform_data	= &n30_warning_led_pdata,
	},
};

static struct s3c2410fb_display n30_display __initdata = {
	.type = S3C2410_LCDCON1_TFT,
	.width = 240,
	.height = 320,
	.pixclock = 170000,
	.xres =	240,
	.yres =	320,
	.bpp = 16,
	.left_margin = 3,
	.right_margin =	40,
	.hsync_len = 40,
	.upper_margin =	2,
	.lower_margin = 3,
	.vsync_len = 2,

	.lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
};

static struct s3c2410fb_mach_info n30_fb_info __initdata = {
	.displays = &n30_display,
	.num_displays = 1,
	.default_display = 0,
	.lpcsel=	0x06,
};

static struct platform_device *n30_devices[] __initdata = {
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c,
	&s3c_device_iis,
	&s3c_device_usb,
	&s3c_device_usbgadget,
	&n30_button_device,
	&n30_blue_led,
	&n30_warning_led,
};

static struct platform_device *n35_devices[] __initdata = {
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c,
	&s3c_device_iis,
	&s3c_device_usbgadget,
	&n35_button_device,
};

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

static 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));
}

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

/* GPB3 is the line that controls the pull-up for the USB D+ line */

static void __init n30_init(void)
{
	s3c24xx_fb_set_platdata(&n30_fb_info);
	s3c_device_i2c.dev.platform_data = &n30_i2ccfg;
	s3c24xx_udc_set_platdata(&n30_udc_cfg);

	/* Turn off suspend on both USB ports, and switch the
	 * selectable USB port to USB device mode. */

	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
			      S3C2410_MISCCR_USBSUSPND0 |
			      S3C2410_MISCCR_USBSUSPND1, 0x0);

	if (machine_is_n30()) {
		/* Turn off suspend on both USB ports, and switch the
		 * selectable USB port to USB device mode. */
		s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
				      S3C2410_MISCCR_USBSUSPND0 |
				      S3C2410_MISCCR_USBSUSPND1, 0x0);

		platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
	}

	if (machine_is_n35()) {
		/* Turn off suspend and switch the selectable USB port
		 * to USB device mode.  Turn on suspend for the host
		 * port since it is not connected on the N35.
		 *
		 * Actually, the host port is available at some pads
		 * on the back of the device, so it would actually be
		 * possible to add a USB device inside the N35 if you
		 * are willing to do some hardware modifications. */
		s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
				      S3C2410_MISCCR_USBSUSPND0 |
				      S3C2410_MISCCR_USBSUSPND1,
				      S3C2410_MISCCR_USBSUSPND1);

		platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
	}
}

MACHINE_START(N30, "Acer-N30")
	/* Maintainer: Christer Weinigel <christer@weinigel.se>,
				Ben Dooks <ben-linux@fluff.org>
	*/
	.phys_io	= S3C2410_PA_UART,
	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	.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

MACHINE_START(N35, "Acer-N35")
	/* Maintainer: Christer Weinigel <christer@weinigel.se>
	*/
	.phys_io	= S3C2410_PA_UART,
	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	.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