aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/palmz72.c
blob: d787ac7cfdd808cac37939c226a1c233ab222915 (plain) (blame)
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
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
/*
 * Hardware definitions for Palm Zire72
 *
 * Authors:
 *	Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
 *	Sergey Lapin <slapin@ossfans.org>
 *	Alex Osborne <bobofdoom@gmail.com>
 *	Jan Herman <2hp@seznam.cz>
 *
 * Rewrite for mainline:
 *	Marek Vasut <marek.vasut@gmail.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.
 *
 * (find more info at www.hackndev.com)
 *
 */

#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/wm97xx_batt.h>
#include <linux/power_supply.h>
#include <linux/usb/gpio_vbus.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/pxa27x.h>
#include <mach/audio.h>
#include <mach/palmz72.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/irda.h>
#include <mach/pxa27x_keypad.h>
#include <mach/udc.h>
#include <mach/palmasoc.h>

#include <mach/pm.h>

#include "generic.h"
#include "devices.h"

/******************************************************************************
 * Pin configuration
 ******************************************************************************/
static unsigned long palmz72_pin_config[] __initdata = {
	/* MMC */
	GPIO32_MMC_CLK,
	GPIO92_MMC_DAT_0,
	GPIO109_MMC_DAT_1,
	GPIO110_MMC_DAT_2,
	GPIO111_MMC_DAT_3,
	GPIO112_MMC_CMD,
	GPIO14_GPIO,	/* SD detect */
	GPIO115_GPIO,	/* SD RO */
	GPIO98_GPIO,	/* SD power */

	/* AC97 */
	GPIO28_AC97_BITCLK,
	GPIO29_AC97_SDATA_IN_0,
	GPIO30_AC97_SDATA_OUT,
	GPIO31_AC97_SYNC,
	GPIO89_AC97_SYSCLK,
	GPIO113_AC97_nRESET,

	/* IrDA */
	GPIO49_GPIO,	/* ir disable */
	GPIO46_FICP_RXD,
	GPIO47_FICP_TXD,

	/* PWM */
	GPIO16_PWM0_OUT,

	/* USB */
	GPIO15_GPIO,	/* usb detect */
	GPIO95_GPIO,	/* usb pullup */

	/* Matrix keypad */
	GPIO100_KP_MKIN_0	| WAKEUP_ON_LEVEL_HIGH,
	GPIO101_KP_MKIN_1	| WAKEUP_ON_LEVEL_HIGH,
	GPIO102_KP_MKIN_2	| WAKEUP_ON_LEVEL_HIGH,
	GPIO97_KP_MKIN_3	| WAKEUP_ON_LEVEL_HIGH,
	GPIO103_KP_MKOUT_0,
	GPIO104_KP_MKOUT_1,
	GPIO105_KP_MKOUT_2,

	/* LCD */
	GPIO58_LCD_LDD_0,
	GPIO59_LCD_LDD_1,
	GPIO60_LCD_LDD_2,
	GPIO61_LCD_LDD_3,
	GPIO62_LCD_LDD_4,
	GPIO63_LCD_LDD_5,
	GPIO64_LCD_LDD_6,
	GPIO65_LCD_LDD_7,
	GPIO66_LCD_LDD_8,
	GPIO67_LCD_LDD_9,
	GPIO68_LCD_LDD_10,
	GPIO69_LCD_LDD_11,
	GPIO70_LCD_LDD_12,
	GPIO71_LCD_LDD_13,
	GPIO72_LCD_LDD_14,
	GPIO73_LCD_LDD_15,
	GPIO74_LCD_FCLK,
	GPIO75_LCD_LCLK,
	GPIO76_LCD_PCLK,
	GPIO77_LCD_BIAS,
	GPIO20_GPIO,	/* bl power */
	GPIO21_GPIO,	/* LCD border switch */
	GPIO22_GPIO,	/* LCD border color */
	GPIO96_GPIO,	/* lcd power */

	/* Misc. */
	GPIO0_GPIO	| WAKEUP_ON_LEVEL_HIGH,	/* power detect */
	GPIO88_GPIO,				/* green led */
	GPIO27_GPIO,				/* WM9712 IRQ */
};

/******************************************************************************
 * SD/MMC card controller
 ******************************************************************************/
/* SD_POWER is not actually power, but it is more like chip
 * select, i.e. it is inverted */
static struct pxamci_platform_data palmz72_mci_platform_data = {
	.ocr_mask		= MMC_VDD_32_33 | MMC_VDD_33_34,
	.gpio_card_detect	= GPIO_NR_PALMZ72_SD_DETECT_N,
	.gpio_card_ro		= GPIO_NR_PALMZ72_SD_RO,
	.gpio_power		= GPIO_NR_PALMZ72_SD_POWER_N,
	.gpio_power_invert	= 1,
};

/******************************************************************************
 * GPIO keyboard
 ******************************************************************************/
static unsigned int palmz72_matrix_keys[] = {
	KEY(0, 0, KEY_POWER),
	KEY(0, 1, KEY_F1),
	KEY(0, 2, KEY_ENTER),

	KEY(1, 0, KEY_F2),
	KEY(1, 1, KEY_F3),
	KEY(1, 2, KEY_F4),

	KEY(2, 0, KEY_UP),
	KEY(2, 2, KEY_DOWN),

	KEY(3, 0, KEY_RIGHT),
	KEY(3, 2, KEY_LEFT),
};

static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
	.matrix_key_rows	= 4,
	.matrix_key_cols	= 3,
	.matrix_key_map		= palmz72_matrix_keys,
	.matrix_key_map_size	= ARRAY_SIZE(palmz72_matrix_keys),

	.debounce_interval	= 30,
};

/******************************************************************************
 * Backlight
 ******************************************************************************/
static int palmz72_backlight_init(struct device *dev)
{
	int ret;

	ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
	if (ret)
		goto err;
	ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
	if (ret)
		goto err2;
	ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
	if (ret)
		goto err2;
	ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
	if (ret)
		goto err3;

	return 0;
err3:
	gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
err2:
	gpio_free(GPIO_NR_PALMZ72_BL_POWER);
err:
	return ret;
}

static int palmz72_backlight_notify(int brightness)
{
	gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
	gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
	return brightness;
}

static void palmz72_backlight_exit(struct device *dev)
{
	gpio_free(GPIO_NR_PALMZ72_BL_POWER);
	gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
}

static struct platform_pwm_backlight_data palmz72_backlight_data = {
	.pwm_id		= 0,
	.max_brightness	= PALMZ72_MAX_INTENSITY,
	.dft_brightness	= PALMZ72_MAX_INTENSITY,
	.pwm_period_ns	= PALMZ72_PERIOD_NS,
	.init		= palmz72_backlight_init,
	.notify		= palmz72_backlight_notify,
	.exit		= palmz72_backlight_exit,
};

static struct platform_device palmz72_backlight = {
	.name	= "pwm-backlight",
	.dev	= {
		.parent		= &pxa27x_device_pwm0.dev,
		.platform_data	= &palmz72_backlight_data,
	},
};

/******************************************************************************
 * IrDA
 ******************************************************************************/
static struct pxaficp_platform_data palmz72_ficp_platform_data = {
	.gpio_pwdown		= GPIO_NR_PALMZ72_IR_DISABLE,
	.transceiver_cap	= IR_SIRMODE | IR_OFF,
};

/******************************************************************************
 * LEDs
 ******************************************************************************/
static struct gpio_led gpio_leds[] = {
	{
		.name			= "palmz72:green:led",
		.default_trigger	= "none",
		.gpio			= GPIO_NR_PALMZ72_LED_GREEN,
	},
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds		= gpio_leds,
	.num_leds	= ARRAY_SIZE(gpio_leds),
};

static struct platform_device palmz72_leds = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
		.platform_data	= &gpio_led_info,
	}
};

/******************************************************************************
 * UDC
 ******************************************************************************/
static struct gpio_vbus_mach_info palmz72_udc_info = {
	.gpio_vbus		= GPIO_NR_PALMZ72_USB_DETECT_N,
	.gpio_pullup		= GPIO_NR_PALMZ72_USB_PULLUP,
};

static struct platform_device palmz72_gpio_vbus = {
	.name	= "gpio-vbus",
	.id	= -1,
	.dev	= {
		.platform_data	= &palmz72_udc_info,
	},
};

/******************************************************************************
 * Power supply
 ******************************************************************************/
static int power_supply_init(struct device *dev)
{
	int ret;

	ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
	if (ret)
		goto err1;
	ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
	if (ret)
		goto err2;

	ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
	if (ret)
		goto err2;
	ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
	if (ret)
		goto err3;

	return 0;
err3:
	gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
err2:
	gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
err1:
	return ret;
}

static int palmz72_is_ac_online(void)
{
	return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
}

static int palmz72_is_usb_online(void)
{
	return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
}

static void power_supply_exit(struct device *dev)
{
	gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
	gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
}

static char *palmz72_supplicants[] = {
	"main-battery",
};

static struct pda_power_pdata power_supply_info = {
	.init            = power_supply_init,
	.is_ac_online    = palmz72_is_ac_online,
	.is_usb_online   = palmz72_is_usb_online,
	.exit            = power_supply_exit,
	.supplied_to     = palmz72_supplicants,
	.num_supplicants = ARRAY_SIZE(palmz72_supplicants),
};

static struct platform_device power_supply = {
	.name = "pda-power",
	.id   = -1,
	.dev  = {
		.platform_data = &power_supply_info,
	},
};

/******************************************************************************
 * WM97xx battery
 ******************************************************************************/
static struct wm97xx_batt_info wm97xx_batt_pdata = {
	.batt_aux	= WM97XX_AUX_ID3,
	.temp_aux	= WM97XX_AUX_ID2,
	.charge_gpio	= -1,
	.max_voltage	= PALMZ72_BAT_MAX_VOLTAGE,
	.min_voltage	= PALMZ72_BAT_MIN_VOLTAGE,
	.batt_mult	= 1000,
	.batt_div	= 414,
	.temp_mult	= 1,
	.temp_div	= 1,
	.batt_tech	= POWER_SUPPLY_TECHNOLOGY_LIPO,
	.batt_name	= "main-batt",
};

/******************************************************************************
 * aSoC audio
 ******************************************************************************/
static struct platform_device palmz72_asoc = {
	.name = "palm27x-asoc",
	.id   = -1,
};

/******************************************************************************
 * Framebuffer
 ******************************************************************************/
static struct pxafb_mode_info palmz72_lcd_modes[] = {
{
	.pixclock	= 115384,
	.xres		= 320,
	.yres		= 320,
	.bpp		= 16,

	.left_margin	= 27,
	.right_margin	= 7,
	.upper_margin	= 7,
	.lower_margin	= 8,

	.hsync_len	= 6,
	.vsync_len	= 1,
},
};

static struct pxafb_mach_info palmz72_lcd_screen = {
	.modes		= palmz72_lcd_modes,
	.num_modes	= ARRAY_SIZE(palmz72_lcd_modes),
	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};

#ifdef CONFIG_PM

/* We have some black magic here
 * PalmOS ROM on recover expects special struct physical address
 * to be transferred via PSPR. Using this struct PalmOS restores
 * its state after sleep. As for Linux, we need to setup it the
 * same way. More than that, PalmOS ROM changes some values in memory.
 * For now only one location is found, which needs special treatment.
 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 * for reading backtraces for me :)
 */

#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)

static struct palmz72_resume_info palmz72_resume_info = {
	.magic0 = 0xb4e6,
	.magic1 = 1,

	/* reset state, MMU off etc */
	.arm_control = 0,
	.aux_control = 0,
	.ttb = 0,
	.domain_access = 0,
	.process_id = 0,
};

static unsigned long store_ptr;

/* sys_device for Palm Zire 72 PM */

static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
{
	/* setup the resume_info struct for the original bootloader */
	palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;

	/* Storing memory touched by ROM */
	store_ptr = *PALMZ72_SAVE_DWORD;

	/* Setting PSPR to a proper value */
	PSPR = virt_to_phys(&palmz72_resume_info);

	return 0;
}

static int palmz72_pm_resume(struct sys_device *dev)
{
	*PALMZ72_SAVE_DWORD = store_ptr;
	return 0;
}

static struct sysdev_class palmz72_pm_sysclass = {
	.name = "palmz72_pm",
	.suspend = palmz72_pm_suspend,
	.resume = palmz72_pm_resume,
};

static struct sys_device palmz72_pm_device = {
	.cls = &palmz72_pm_sysclass,
};

static int __init palmz72_pm_init(void)
{
	int ret = -ENODEV;
	if (machine_is_palmz72()) {
		ret = sysdev_class_register(&palmz72_pm_sysclass);
		if (ret == 0)
			ret = sysdev_register(&palmz72_pm_device);
	}
	return ret;
}

device_initcall(palmz72_pm_init);
#endif

/******************************************************************************
 * Machine init
 ******************************************************************************/
static struct platform_device *devices[] __initdata = {
	&palmz72_backlight,
	&palmz72_leds,
	&palmz72_asoc,
	&power_supply,
	&palmz72_gpio_vbus,
};

/* setup udc GPIOs initial state */
static void __init palmz72_udc_init(void)
{
	if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
		gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
		gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
	}
}

static void __init palmz72_init(void)
{
	pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));

	pxa_set_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);
	pxa_set_stuart_info(NULL);

	set_pxa_fb_info(&palmz72_lcd_screen);
	pxa_set_mci_info(&palmz72_mci_platform_data);
	palmz72_udc_init();
	pxa_set_ac97_info(NULL);
	pxa_set_ficp_info(&palmz72_ficp_platform_data);
	pxa_set_keypad_info(&palmz72_keypad_platform_data);
	wm97xx_bat_set_pdata(&wm97xx_batt_pdata);

	platform_add_devices(devices, ARRAY_SIZE(devices));
}

MACHINE_START(PALMZ72, "Palm Zire72")
	.phys_io	= 0x40000000,
	.io_pg_offst	= io_p2v(0x40000000),
	.boot_params	= 0xa0000100,
	.map_io		= pxa_map_io,
	.init_irq	= pxa27x_init_irq,
	.timer		= &pxa_timer,
	.init_machine	= palmz72_init
MACHINE_END