aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/palmt5.c
blob: 0680f1a575a33556e41e40b75ff83da0886dd178 (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
518
519
520
521
522
523
/*
 * Hardware definitions for Palm Tungsten|T5
 *
 * Author:	Marek Vasut <marek.vasut@gmail.com>
 *
 * Based on work of:
 *		Ales Snuparek <snuparek@atlas.cz>
 *		Justin Kendrick <twilightsentry@gmail.com>
 *		RichardT5 <richard_t5@users.sourceforge.net>
 *
 * 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/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 <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <mach/pxa27x.h>
#include <mach/audio.h>
#include <mach/palmt5.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 "generic.h"
#include "devices.h"

/******************************************************************************
 * Pin configuration
 ******************************************************************************/
static unsigned long palmt5_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 */
	GPIO114_GPIO,	/* SD power */
	GPIO115_GPIO,	/* SD r/o switch */

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

	/* IrDA */
	GPIO40_GPIO,	/* ir disable */
	GPIO46_FICP_RXD,
	GPIO47_FICP_TXD,

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

	/* 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,

	/* PWM */
	GPIO16_PWM0_OUT,

	/* MISC */
	GPIO10_GPIO,	/* hotsync button */
	GPIO90_GPIO,	/* power detect */
	GPIO107_GPIO,	/* earphone detect */
};

/******************************************************************************
 * SD/MMC card controller
 ******************************************************************************/
static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
				void *data)
{
	int err = 0;

	/* Setup an interrupt for detecting card insert/remove events */
	err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
	if (err)
		goto err;
	err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
	if (err)
		goto err2;
	err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
			palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
			IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
			"SD/MMC card detect", data);
	if (err) {
		printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
				__func__);
		goto err2;
	}

	err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
	if (err)
		goto err3;
	err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
	if (err)
		goto err4;

	err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
	if (err)
		goto err4;
	err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
	if (err)
		goto err5;

	printk(KERN_DEBUG "%s: irq registered\n", __func__);

	return 0;

err5:
	gpio_free(GPIO_NR_PALMT5_SD_READONLY);
err4:
	gpio_free(GPIO_NR_PALMT5_SD_POWER);
err3:
	free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
err2:
	gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
err:
	return err;
}

static void palmt5_mci_exit(struct device *dev, void *data)
{
	gpio_free(GPIO_NR_PALMT5_SD_READONLY);
	gpio_free(GPIO_NR_PALMT5_SD_POWER);
	free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
	gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
}

static void palmt5_mci_power(struct device *dev, unsigned int vdd)
{
	struct pxamci_platform_data *p_d = dev->platform_data;
	gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
}

static int palmt5_mci_get_ro(struct device *dev)
{
	return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
}

static struct pxamci_platform_data palmt5_mci_platform_data = {
	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
	.setpower	= palmt5_mci_power,
	.get_ro		= palmt5_mci_get_ro,
	.init 		= palmt5_mci_init,
	.exit		= palmt5_mci_exit,
};

/******************************************************************************
 * GPIO keyboard
 ******************************************************************************/
static unsigned int palmt5_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 palmt5_keypad_platform_data = {
	.matrix_key_rows	= 4,
	.matrix_key_cols	= 3,
	.matrix_key_map		= palmt5_matrix_keys,
	.matrix_key_map_size	= ARRAY_SIZE(palmt5_matrix_keys),

	.debounce_interval	= 30,
};

/******************************************************************************
 * GPIO keys
 ******************************************************************************/
static struct gpio_keys_button palmt5_pxa_buttons[] = {
	{KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
};

static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
	.buttons	= palmt5_pxa_buttons,
	.nbuttons	= ARRAY_SIZE(palmt5_pxa_buttons),
};

static struct platform_device palmt5_pxa_keys = {
	.name	= "gpio-keys",
	.id	= -1,
	.dev	= {
		.platform_data = &palmt5_pxa_keys_data,
	},
};

/******************************************************************************
 * Backlight
 ******************************************************************************/
static int palmt5_backlight_init(struct device *dev)
{
	int ret;

	ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
	if (ret)
		goto err;
	ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
	if (ret)
		goto err2;
	ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
	if (ret)
		goto err2;
	ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
	if (ret)
		goto err3;

	return 0;
err3:
	gpio_free(GPIO_NR_PALMT5_LCD_POWER);
err2:
	gpio_free(GPIO_NR_PALMT5_BL_POWER);
err:
	return ret;
}

static int palmt5_backlight_notify(int brightness)
{
	gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
	gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
	return brightness;
}

static void palmt5_backlight_exit(struct device *dev)
{
	gpio_free(GPIO_NR_PALMT5_BL_POWER);
	gpio_free(GPIO_NR_PALMT5_LCD_POWER);
}

static struct platform_pwm_backlight_data palmt5_backlight_data = {
	.pwm_id		= 0,
	.max_brightness	= PALMT5_MAX_INTENSITY,
	.dft_brightness	= PALMT5_MAX_INTENSITY,
	.pwm_period_ns	= PALMT5_PERIOD_NS,
	.init		= palmt5_backlight_init,
	.notify		= palmt5_backlight_notify,
	.exit		= palmt5_backlight_exit,
};

static struct platform_device palmt5_backlight = {
	.name	= "pwm-backlight",
	.dev	= {
		.parent		= &pxa27x_device_pwm0.dev,
		.platform_data	= &palmt5_backlight_data,
	},
};

/******************************************************************************
 * IrDA
 ******************************************************************************/
static int palmt5_irda_startup(struct device *dev)
{
	int err;
	err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
	if (err)
		goto err;
	err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
	if (err)
		gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
err:
	return err;
}

static void palmt5_irda_shutdown(struct device *dev)
{
	gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
}

static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
{
	gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
	pxa2xx_transceiver_mode(dev, mode);
}

static struct pxaficp_platform_data palmt5_ficp_platform_data = {
	.startup		= palmt5_irda_startup,
	.shutdown		= palmt5_irda_shutdown,
	.transceiver_cap	= IR_SIRMODE | IR_FIRMODE | IR_OFF,
	.transceiver_mode	= palmt5_irda_transceiver_mode,
};

/******************************************************************************
 * UDC
 ******************************************************************************/
static struct pxa2xx_udc_mach_info palmt5_udc_info __initdata = {
	.gpio_vbus		= GPIO_NR_PALMT5_USB_DETECT_N,
	.gpio_vbus_inverted	= 1,
	.gpio_pullup		= GPIO_NR_PALMT5_USB_POWER,
	.gpio_pullup_inverted	= 0,
};

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

	ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
	if (ret)
		goto err1;
	ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
	if (ret)
		goto err2;

	return 0;
err2:
	gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
err1:
	return ret;
}

static int palmt5_is_ac_online(void)
{
	return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
}

static void power_supply_exit(struct device *dev)
{
	gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
}

static char *palmt5_supplicants[] = {
	"main-battery",
};

static struct pda_power_pdata power_supply_info = {
	.init            = power_supply_init,
	.is_ac_online    = palmt5_is_ac_online,
	.exit            = power_supply_exit,
	.supplied_to     = palmt5_supplicants,
	.num_supplicants = ARRAY_SIZE(palmt5_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	= PALMT5_BAT_MAX_VOLTAGE,
	.min_voltage	= PALMT5_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 palm27x_asoc_info palm27x_asoc_pdata = {
	.jack_gpio	= GPIO_NR_PALMT5_EARPHONE_DETECT,
};

/******************************************************************************
 * Framebuffer
 ******************************************************************************/
static struct pxafb_mode_info palmt5_lcd_modes[] = {
{
	.pixclock	= 57692,
	.xres		= 320,
	.yres		= 480,
	.bpp		= 16,

	.left_margin	= 32,
	.right_margin	= 1,
	.upper_margin	= 7,
	.lower_margin	= 1,

	.hsync_len	= 4,
	.vsync_len	= 1,
},
};

static struct pxafb_mach_info palmt5_lcd_screen = {
	.modes		= palmt5_lcd_modes,
	.num_modes	= ARRAY_SIZE(palmt5_lcd_modes),
	.lcd_conn	= LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};

/******************************************************************************
 * Power management - standby
 ******************************************************************************/
#ifdef CONFIG_PM
static u32 *addr __initdata;
static u32 resume[3] __initdata = {
	0xe3a00101,	/* mov	r0,	#0x40000000 */
	0xe380060f,	/* orr	r0, r0, #0x00f00000 */
	0xe590f008,	/* ldr	pc, [r0, #0x08] */
};

static int __init palmt5_pm_init(void)
{
	int i;

	/* this is where the bootloader jumps */
	addr = phys_to_virt(PALMT5_STR_BASE);

	for (i = 0; i < 3; i++)
		addr[i] = resume[i];

	return 0;
}

device_initcall(palmt5_pm_init);
#endif

/******************************************************************************
 * Machine init
 ******************************************************************************/
static struct platform_device *devices[] __initdata = {
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
	&palmt5_pxa_keys,
#endif
	&palmt5_backlight,
	&power_supply,
};

/* setup udc GPIOs initial state */
static void __init palmt5_udc_init(void)
{
	if (!gpio_request(GPIO_NR_PALMT5_USB_POWER, "UDC Vbus")) {
		gpio_direction_output(GPIO_NR_PALMT5_USB_POWER, 1);
		gpio_free(GPIO_NR_PALMT5_USB_POWER);
	}
}

static void __init palmt5_init(void)
{
	pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));

	set_pxa_fb_info(&palmt5_lcd_screen);
	pxa_set_mci_info(&palmt5_mci_platform_data);
	palmt5_udc_init();
	pxa_set_udc_info(&palmt5_udc_info);
	pxa_set_ac97_info(NULL);
	pxa_set_ficp_info(&palmt5_ficp_platform_data);
	pxa_set_keypad_info(&palmt5_keypad_platform_data);
	wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
	palm27x_asoc_set_pdata(&palm27x_asoc_pdata);
	platform_add_devices(devices, ARRAY_SIZE(devices));
}

MACHINE_START(PALMT5, "Palm Tungsten|T5")
	.phys_io	= PALMT5_PHYS_IO_START,
	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
	.boot_params	= 0xa0000100,
	.map_io		= pxa_map_io,
	.init_irq	= pxa27x_init_irq,
	.timer		= &pxa_timer,
	.init_machine	= palmt5_init
MACHINE_END