summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-omap1/board-nokia770.c
blob: e70fc7c66bbb63d0b8b28d59d3e404ac9263a5f7 (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
/*
 * linux/arch/arm/mach-omap1/board-nokia770.c
 *
 * Modified from board-generic.c
 *
 * 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/init.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/clk.h>

#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/workqueue.h>
#include <linux/delay.h>

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

#include <mach/gpio.h>
#include <mach/mux.h>
#include <mach/usb.h>
#include <mach/board.h>
#include <mach/keypad.h>
#include <mach/common.h>
#include <mach/dsp_common.h>
#include <mach/omapfb.h>
#include <mach/hwa742.h>
#include <mach/lcd_mipid.h>
#include <mach/mmc.h>
#include <mach/usb.h>
#include <mach/clock.h>

#define ADS7846_PENDOWN_GPIO	15

static void __init omap_nokia770_init_irq(void)
{
	/* On Nokia 770, the SleepX signal is masked with an
	 * MPUIO line by default.  It has to be unmasked for it
	 * to become functional */

	/* SleepX mask direction */
	omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
	/* Unmask SleepX signal */
	omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);

	omap1_init_common_hw();
	omap_init_irq();
}

static int nokia770_keymap[] = {
	KEY(0, 1, GROUP_0 | KEY_UP),
	KEY(0, 2, GROUP_1 | KEY_F5),
	KEY(1, 0, GROUP_0 | KEY_LEFT),
	KEY(1, 1, GROUP_0 | KEY_ENTER),
	KEY(1, 2, GROUP_0 | KEY_RIGHT),
	KEY(2, 0, GROUP_1 | KEY_ESC),
	KEY(2, 1, GROUP_0 | KEY_DOWN),
	KEY(2, 2, GROUP_1 | KEY_F4),
	KEY(3, 0, GROUP_2 | KEY_F7),
	KEY(3, 1, GROUP_2 | KEY_F8),
	KEY(3, 2, GROUP_2 | KEY_F6),
	0
};

static struct resource nokia770_kp_resources[] = {
	[0] = {
		.start	= INT_KEYBOARD,
		.end	= INT_KEYBOARD,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct omap_kp_platform_data nokia770_kp_data = {
	.rows		= 8,
	.cols		= 8,
	.keymap		= nokia770_keymap,
	.keymapsize	= ARRAY_SIZE(nokia770_keymap),
	.delay		= 4,
};

static struct platform_device nokia770_kp_device = {
	.name		= "omap-keypad",
	.id		= -1,
	.dev		= {
		.platform_data = &nokia770_kp_data,
	},
	.num_resources	= ARRAY_SIZE(nokia770_kp_resources),
	.resource	= nokia770_kp_resources,
};

static struct platform_device *nokia770_devices[] __initdata = {
	&nokia770_kp_device,
};

static void mipid_shutdown(struct mipid_platform_data *pdata)
{
	if (pdata->nreset_gpio != -1) {
		printk(KERN_INFO "shutdown LCD\n");
		gpio_set_value(pdata->nreset_gpio, 0);
		msleep(120);
	}
}

static struct mipid_platform_data nokia770_mipid_platform_data = {
	.shutdown = mipid_shutdown,
};

static void mipid_dev_init(void)
{
	const struct omap_lcd_config *conf;

	conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
	if (conf != NULL) {
		nokia770_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
		nokia770_mipid_platform_data.data_lines = conf->data_lines;
	}
}

static void ads7846_dev_init(void)
{
	if (gpio_request(ADS7846_PENDOWN_GPIO, "ADS7846 pendown") < 0)
		printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
}

static int ads7846_get_pendown_state(void)
{
	return !gpio_get_value(ADS7846_PENDOWN_GPIO);
}

static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
	.x_max		= 0x0fff,
	.y_max		= 0x0fff,
	.x_plate_ohms	= 180,
	.pressure_max	= 255,
	.debounce_max	= 10,
	.debounce_tol	= 3,
	.debounce_rep	= 1,
	.get_pendown_state	= ads7846_get_pendown_state,
};

static struct spi_board_info nokia770_spi_board_info[] __initdata = {
	[0] = {
		.modalias       = "lcd_mipid",
		.bus_num        = 2,
		.chip_select    = 3,
		.max_speed_hz   = 12000000,
		.platform_data	= &nokia770_mipid_platform_data,
	},
	[1] = {
		.modalias       = "ads7846",
		.bus_num        = 2,
		.chip_select    = 0,
		.max_speed_hz   = 2500000,
		.irq		= OMAP_GPIO_IRQ(15),
		.platform_data	= &nokia770_ads7846_platform_data,
	},
};

static struct hwa742_platform_data nokia770_hwa742_platform_data = {
	.te_connected		= 1,
};

static void hwa742_dev_init(void)
{
	clk_add_alias("hwa_sys_ck", NULL, "bclk", NULL);
	omapfb_set_ctrl_platform_data(&nokia770_hwa742_platform_data);
}

/* assume no Mini-AB port */

static struct omap_usb_config nokia770_usb_config __initdata = {
	.otg		= 1,
	.register_host	= 1,
	.register_dev	= 1,
	.hmc_mode	= 16,
	.pins[0]	= 6,
};

#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)

#define NOKIA770_GPIO_MMC_POWER		41
#define NOKIA770_GPIO_MMC_SWITCH	23

static int nokia770_mmc_set_power(struct device *dev, int slot, int power_on,
				int vdd)
{
	gpio_set_value(NOKIA770_GPIO_MMC_POWER, power_on);
	return 0;
}

static int nokia770_mmc_get_cover_state(struct device *dev, int slot)
{
	return gpio_get_value(NOKIA770_GPIO_MMC_SWITCH);
}

static struct omap_mmc_platform_data nokia770_mmc2_data = {
	.nr_slots                       = 1,
	.dma_mask			= 0xffffffff,
	.slots[0]       = {
		.set_power		= nokia770_mmc_set_power,
		.get_cover_state	= nokia770_mmc_get_cover_state,
		.name                   = "mmcblk",
	},
};

static struct omap_mmc_platform_data *nokia770_mmc_data[OMAP16XX_NR_MMC];

static void __init nokia770_mmc_init(void)
{
	int ret;

	ret = gpio_request(NOKIA770_GPIO_MMC_POWER, "MMC power");
	if (ret < 0)
		return;
	gpio_direction_output(NOKIA770_GPIO_MMC_POWER, 0);

	ret = gpio_request(NOKIA770_GPIO_MMC_SWITCH, "MMC cover");
	if (ret < 0) {
		gpio_free(NOKIA770_GPIO_MMC_POWER);
		return;
	}
	gpio_direction_input(NOKIA770_GPIO_MMC_SWITCH);

	/* Only the second MMC controller is used */
	nokia770_mmc_data[1] = &nokia770_mmc2_data;
	omap1_init_mmc(nokia770_mmc_data, OMAP16XX_NR_MMC);
}

#else
static inline void nokia770_mmc_init(void)
{
}
#endif

#if	defined(CONFIG_OMAP_DSP)
/*
 * audio power control
 */
#define	HEADPHONE_GPIO		14
#define	AMPLIFIER_CTRL_GPIO	58

static struct clk *dspxor_ck;
static DEFINE_MUTEX(audio_pwr_lock);
/*
 * audio_pwr_state
 * +--+-------------------------+---------------------------------------+
 * |-1|down			|power-up request -> 0			|
 * +--+-------------------------+---------------------------------------+
 * | 0|up			|power-down(1) request -> 1		|
 * |  |				|power-down(2) request -> (ignore)	|
 * +--+-------------------------+---------------------------------------+
 * | 1|up,			|power-up request -> 0			|
 * |  |received down(1) request	|power-down(2) request -> -1		|
 * +--+-------------------------+---------------------------------------+
 */
static int audio_pwr_state = -1;

static inline void aic23_power_up(void)
{
}
static inline void aic23_power_down(void)
{
}

/*
 * audio_pwr_up / down should be called under audio_pwr_lock
 */
static void nokia770_audio_pwr_up(void)
{
	clk_enable(dspxor_ck);

	/* Turn on codec */
	aic23_power_up();

	if (gpio_get_value(HEADPHONE_GPIO))
		/* HP not connected, turn on amplifier */
		gpio_set_value(AMPLIFIER_CTRL_GPIO, 1);
	else
		/* HP connected, do not turn on amplifier */
		printk("HP connected\n");
}

static void codec_delayed_power_down(struct work_struct *work)
{
	mutex_lock(&audio_pwr_lock);
	if (audio_pwr_state == -1)
		aic23_power_down();
	clk_disable(dspxor_ck);
	mutex_unlock(&audio_pwr_lock);
}

static DECLARE_DELAYED_WORK(codec_power_down_work, codec_delayed_power_down);

static void nokia770_audio_pwr_down(void)
{
	/* Turn off amplifier */
	gpio_set_value(AMPLIFIER_CTRL_GPIO, 0);

	/* Turn off codec: schedule delayed work */
	schedule_delayed_work(&codec_power_down_work, HZ / 20);	/* 50ms */
}

static int
nokia770_audio_pwr_up_request(struct dsp_kfunc_device *kdev, int stage)
{
	mutex_lock(&audio_pwr_lock);
	if (audio_pwr_state == -1)
		nokia770_audio_pwr_up();
	/* force audio_pwr_state = 0, even if it was 1. */
	audio_pwr_state = 0;
	mutex_unlock(&audio_pwr_lock);
	return 0;
}

static int
nokia770_audio_pwr_down_request(struct dsp_kfunc_device *kdev, int stage)
{
	mutex_lock(&audio_pwr_lock);
	switch (stage) {
	case 1:
		if (audio_pwr_state == 0)
			audio_pwr_state = 1;
		break;
	case 2:
		if (audio_pwr_state == 1) {
			nokia770_audio_pwr_down();
			audio_pwr_state = -1;
		}
		break;
	}
	mutex_unlock(&audio_pwr_lock);
	return 0;
}

static struct dsp_kfunc_device nokia770_audio_device = {
	.name	 = "audio",
	.type	 = DSP_KFUNC_DEV_TYPE_AUDIO,
	.enable  = nokia770_audio_pwr_up_request,
	.disable = nokia770_audio_pwr_down_request,
};

static __init int omap_dsp_init(void)
{
	int ret;

	dspxor_ck = clk_get(0, "dspxor_ck");
	if (IS_ERR(dspxor_ck)) {
		printk(KERN_ERR "couldn't acquire dspxor_ck\n");
		return PTR_ERR(dspxor_ck);
	}

	ret = dsp_kfunc_device_register(&nokia770_audio_device);
	if (ret) {
		printk(KERN_ERR
		       "KFUNC device registration faild: %s\n",
		       nokia770_audio_device.name);
		goto out;
	}
	return 0;
 out:
	return ret;
}
#else
#define omap_dsp_init()		do {} while (0)
#endif	/* CONFIG_OMAP_DSP */

static void __init omap_nokia770_init(void)
{
	platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
	spi_register_board_info(nokia770_spi_board_info,
				ARRAY_SIZE(nokia770_spi_board_info));
	omap_gpio_init();
	omap_serial_init();
	omap_register_i2c_bus(1, 100, NULL, 0);
	omap_dsp_init();
	hwa742_dev_init();
	ads7846_dev_init();
	mipid_dev_init();
	omap_usb_init(&nokia770_usb_config);
	nokia770_mmc_init();
}

static void __init omap_nokia770_map_io(void)
{
	omap1_map_common_io();
}

MACHINE_START(NOKIA770, "Nokia 770")
	.phys_io	= 0xfff00000,
	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
	.boot_params	= 0x10000100,
	.map_io		= omap_nokia770_map_io,
	.init_irq	= omap_nokia770_init_irq,
	.init_machine	= omap_nokia770_init,
	.timer		= &omap_timer,
MACHINE_END
OpenPOWER on IntegriCloud