summaryrefslogtreecommitdiff
path: root/arch/arm/mach-s3c64xx/mach-smartq.c
blob: 5025db607c0fbaa80b575c387749448e03f8bf77 (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
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2010 Maurus Cuelenaere

#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/pwm_backlight.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/spi/spi_gpio.h>
#include <linux/platform_data/s3c-hsotg.h>

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

#include <mach/map.h>
#include <mach/regs-gpio.h>
#include <mach/gpio-samsung.h>

#include <plat/cpu.h>
#include <plat/devs.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <plat/gpio-cfg.h>
#include <linux/platform_data/hwmon-s3c.h>
#include <linux/platform_data/usb-ohci-s3c2410.h>
#include <plat/sdhci.h>
#include <linux/platform_data/touchscreen-s3c2410.h>

#include <video/platform_lcd.h>
#include <plat/samsung-time.h>

#include "common.h"
#include "mach-smartq.h"
#include "regs-modem.h"

#define UCON S3C2410_UCON_DEFAULT
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)

static struct s3c2410_uartcfg smartq_uartcfgs[] __initdata = {
	[0] = {
		.hwport	     = 0,
		.flags	     = 0,
		.ucon	     = UCON,
		.ulcon	     = ULCON,
		.ufcon	     = UFCON,
	},
	[1] = {
		.hwport	     = 1,
		.flags	     = 0,
		.ucon	     = UCON,
		.ulcon	     = ULCON,
		.ufcon	     = UFCON,
	},
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.ucon	     = UCON,
		.ulcon	     = ULCON,
		.ufcon	     = UFCON,
	},
};

static void smartq_usb_host_powercontrol(int port, int to)
{
	pr_debug("%s(%d, %d)\n", __func__, port, to);

	if (port == 0) {
		gpio_set_value(S3C64XX_GPL(0), to);
		gpio_set_value(S3C64XX_GPL(1), to);
	}
}

static irqreturn_t smartq_usb_host_ocirq(int irq, void *pw)
{
	struct s3c2410_hcd_info *info = pw;

	if (gpio_get_value(S3C64XX_GPL(10)) == 0) {
		pr_debug("%s: over-current irq (oc detected)\n", __func__);
		s3c2410_usb_report_oc(info, 3);
	} else {
		pr_debug("%s: over-current irq (oc cleared)\n", __func__);
		s3c2410_usb_report_oc(info, 0);
	}

	return IRQ_HANDLED;
}

static void smartq_usb_host_enableoc(struct s3c2410_hcd_info *info, int on)
{
	int ret;

	/* This isn't present on a SmartQ 5 board */
	if (machine_is_smartq5())
		return;

	if (on) {
		ret = request_irq(gpio_to_irq(S3C64XX_GPL(10)),
				  smartq_usb_host_ocirq,
				  IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
				  "USB host overcurrent", info);
		if (ret != 0)
			pr_err("failed to request usb oc irq: %d\n", ret);
	} else {
		free_irq(gpio_to_irq(S3C64XX_GPL(10)), info);
	}
}

static struct s3c2410_hcd_info smartq_usb_host_info = {
	.port[0]	= {
		.flags	= S3C_HCDFLG_USED
	},
	.port[1]	= {
		.flags	= 0
	},

	.power_control	= smartq_usb_host_powercontrol,
	.enable_oc	= smartq_usb_host_enableoc,
};

static struct gpiod_lookup_table smartq_usb_otg_vbus_gpiod_table = {
	.dev_id = "gpio-vbus",
	.table = {
		GPIO_LOOKUP("GPL", 9, "vbus", GPIO_ACTIVE_LOW),
		{ },
	},
};

static struct platform_device smartq_usb_otg_vbus_dev = {
	.name			= "gpio-vbus",
};

static struct pwm_lookup smartq_pwm_lookup[] = {
	PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
		   1000000000 / (1000 * 20), PWM_POLARITY_NORMAL),
};

static int smartq_bl_init(struct device *dev)
{
    s3c_gpio_cfgpin(S3C64XX_GPF(15), S3C_GPIO_SFN(2));

    return 0;
}

static struct platform_pwm_backlight_data smartq_backlight_data = {
	.max_brightness	= 1000,
	.dft_brightness	= 600,
	.init		= smartq_bl_init,
};

static struct platform_device smartq_backlight_device = {
	.name		= "pwm-backlight",
	.dev		= {
		.parent	= &samsung_device_pwm.dev,
		.platform_data = &smartq_backlight_data,
	},
};

static struct s3c2410_ts_mach_info smartq_touchscreen_pdata __initdata = {
	.delay			= 65535,
	.presc			= 99,
	.oversampling_shift	= 4,
};

static struct s3c_sdhci_platdata smartq_internal_hsmmc_pdata = {
	.max_width		= 4,
	.cd_type		= S3C_SDHCI_CD_PERMANENT,
};

static struct s3c_hwmon_pdata smartq_hwmon_pdata __initdata = {
	/* Battery voltage (?-4.2V) */
	.in[0] = &(struct s3c_hwmon_chcfg) {
		.name		= "smartq:battery-voltage",
		.mult		= 3300,
		.div		= 2048,
	},
	/* Reference voltage (1.2V) */
	.in[1] = &(struct s3c_hwmon_chcfg) {
		.name		= "smartq:reference-voltage",
		.mult		= 3300,
		.div		= 4096,
	},
};

static struct dwc2_hsotg_plat smartq_hsotg_pdata;

static int __init smartq_lcd_setup_gpio(void)
{
	int ret;

	ret = gpio_request(S3C64XX_GPM(3), "LCD power");
	if (ret < 0)
		return ret;

	/* turn power off */
	gpio_direction_output(S3C64XX_GPM(3), 0);

	return 0;
}

/* GPM0 -> CS */
static struct spi_gpio_platform_data smartq_lcd_control = {
	.num_chipselect	= 1,
};

static struct platform_device smartq_lcd_control_device = {
	.name			= "spi_gpio",
	.id			= 1,
	.dev.platform_data	= &smartq_lcd_control,
};

static struct gpiod_lookup_table smartq_lcd_control_gpiod_table = {
	.dev_id         = "spi_gpio",
	.table          = {
		GPIO_LOOKUP("GPIOM", 1,
			    "sck", GPIO_ACTIVE_HIGH),
		GPIO_LOOKUP("GPIOM", 2,
			    "mosi", GPIO_ACTIVE_HIGH),
		GPIO_LOOKUP("GPIOM", 3,
			    "miso", GPIO_ACTIVE_HIGH),
		GPIO_LOOKUP("GPIOM", 0,
			    "cs", GPIO_ACTIVE_HIGH),
		{ },
	},
};

static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
	gpio_direction_output(S3C64XX_GPM(3), power);
}

static struct plat_lcd_data smartq_lcd_power_data = {
	.set_power	= smartq_lcd_power_set,
};

static struct platform_device smartq_lcd_power_device = {
	.name			= "platform-lcd",
	.dev.parent		= &s3c_device_fb.dev,
	.dev.platform_data	= &smartq_lcd_power_data,
};

static struct i2c_board_info smartq_i2c_devs[] __initdata = {
	{ I2C_BOARD_INFO("wm8987", 0x1a), },
};

static struct platform_device *smartq_devices[] __initdata = {
	&s3c_device_hsmmc1,	/* Init iNAND first, ... */
	&s3c_device_hsmmc0,	/* ... then the external SD card */
	&s3c_device_hsmmc2,
	&s3c_device_adc,
	&s3c_device_fb,
	&s3c_device_hwmon,
	&s3c_device_i2c0,
	&s3c_device_ohci,
	&s3c_device_rtc,
	&samsung_device_pwm,
	&s3c_device_usb_hsotg,
	&s3c64xx_device_iis0,
	&smartq_backlight_device,
	&smartq_lcd_control_device,
	&smartq_lcd_power_device,
	&smartq_usb_otg_vbus_dev,
};

static void __init smartq_lcd_mode_set(void)
{
	u32 tmp;

	/* set the LCD type */
	tmp = __raw_readl(S3C64XX_SPCON);
	tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
	tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
	__raw_writel(tmp, S3C64XX_SPCON);

	/* remove the LCD bypass */
	tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
	tmp &= ~MIFPCON_LCD_BYPASS;
	__raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
}

static void smartq_power_off(void)
{
	gpio_direction_output(S3C64XX_GPK(15), 1);
}

static int __init smartq_power_off_init(void)
{
	int ret;

	ret = gpio_request(S3C64XX_GPK(15), "Power control");
	if (ret < 0) {
		pr_err("%s: failed to get GPK15\n", __func__);
		return ret;
	}

	/* leave power on */
	gpio_direction_output(S3C64XX_GPK(15), 0);

	pm_power_off = smartq_power_off;

	return ret;
}

static int __init smartq_usb_host_init(void)
{
	int ret;

	ret = gpio_request(S3C64XX_GPL(0), "USB power control");
	if (ret < 0) {
		pr_err("%s: failed to get GPL0\n", __func__);
		return ret;
	}

	ret = gpio_request(S3C64XX_GPL(1), "USB host power control");
	if (ret < 0) {
		pr_err("%s: failed to get GPL1\n", __func__);
		goto err;
	}

	if (!machine_is_smartq5()) {
		/* This isn't present on a SmartQ 5 board */
		ret = gpio_request(S3C64XX_GPL(10), "USB host overcurrent");
		if (ret < 0) {
			pr_err("%s: failed to get GPL10\n", __func__);
			goto err2;
		}
	}

	/* turn power off */
	gpio_direction_output(S3C64XX_GPL(0), 0);
	gpio_direction_output(S3C64XX_GPL(1), 0);
	if (!machine_is_smartq5())
		gpio_direction_input(S3C64XX_GPL(10));

	s3c_device_ohci.dev.platform_data = &smartq_usb_host_info;

	return 0;

err2:
	gpio_free(S3C64XX_GPL(1));
err:
	gpio_free(S3C64XX_GPL(0));
	return ret;
}

static int __init smartq_wifi_init(void)
{
	int ret;

	ret = gpio_request(S3C64XX_GPK(1), "wifi control");
	if (ret < 0) {
		pr_err("%s: failed to get GPK1\n", __func__);
		return ret;
	}

	ret = gpio_request(S3C64XX_GPK(2), "wifi reset");
	if (ret < 0) {
		pr_err("%s: failed to get GPK2\n", __func__);
		gpio_free(S3C64XX_GPK(1));
		return ret;
	}

	/* turn power on */
	gpio_direction_output(S3C64XX_GPK(1), 1);

	/* reset device */
	gpio_direction_output(S3C64XX_GPK(2), 0);
	mdelay(100);
	gpio_set_value(S3C64XX_GPK(2), 1);
	gpio_direction_input(S3C64XX_GPK(2));

	return 0;
}

static struct map_desc smartq_iodesc[] __initdata = {};
void __init smartq_map_io(void)
{
	s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc));
	s3c64xx_set_xtal_freq(12000000);
	s3c64xx_set_xusbxti_freq(12000000);
	s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);

	smartq_lcd_mode_set();
}

static struct gpiod_lookup_table smartq_audio_gpios = {
	.dev_id = "smartq-audio",
	.table = {
		GPIO_LOOKUP("GPL", 12, "headphone detect", 0),
		GPIO_LOOKUP("GPK", 12, "amplifiers shutdown", 0),
		{ },
	},
};

void __init smartq_machine_init(void)
{
	s3c_i2c0_set_platdata(NULL);
	dwc2_hsotg_set_platdata(&smartq_hsotg_pdata);
	s3c_hwmon_set_platdata(&smartq_hwmon_pdata);
	s3c_sdhci1_set_platdata(&smartq_internal_hsmmc_pdata);
	s3c_sdhci2_set_platdata(&smartq_internal_hsmmc_pdata);
	s3c64xx_ts_set_platdata(&smartq_touchscreen_pdata);

	i2c_register_board_info(0, smartq_i2c_devs,
				ARRAY_SIZE(smartq_i2c_devs));

	WARN_ON(smartq_lcd_setup_gpio());
	WARN_ON(smartq_power_off_init());
	WARN_ON(smartq_usb_host_init());
	WARN_ON(smartq_wifi_init());

	pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup));
	gpiod_add_lookup_table(&smartq_lcd_control_gpiod_table);
	gpiod_add_lookup_table(&smartq_usb_otg_vbus_gpiod_table);
	platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));

	gpiod_add_lookup_table(&smartq_audio_gpios);
	platform_device_register_simple("smartq-audio", -1, NULL, 0);
}