aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-s3c2410/mach-h1940.c
blob: 49053254c98d2041a9e66e70b1699e24e66ae26a (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
/* linux/arch/arm/mach-s3c2410/mach-h1940.c
 *
 * Copyright (c) 2003-2005 Simtec Electronics
 *   Ben Dooks <ben@simtec.co.uk>
 *
 * http://www.handhelds.org/projects/h1940.html
 *
 * 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/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/sysdev.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/pwm_backlight.h>
#include <video/platform_lcd.h>

#include <linux/mmc/host.h>

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

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

#include <plat/regs-serial.h>
#include <mach/regs-lcd.h>
#include <mach/regs-clock.h>

#include <mach/regs-gpio.h>
#include <mach/gpio-fns.h>
#include <mach/gpio-nrs.h>

#include <mach/h1940.h>
#include <mach/h1940-latch.h>
#include <mach/fb.h>
#include <plat/udc.h>
#include <plat/iic.h>

#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/pll.h>
#include <plat/pm.h>
#include <plat/mci.h>

static struct map_desc h1940_iodesc[] __initdata = {
	[0] = {
		.virtual	= (unsigned long)H1940_LATCH,
		.pfn		= __phys_to_pfn(H1940_PA_LATCH),
		.length		= SZ_16K,
		.type		= MT_DEVICE
	},
};

#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE

static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
	[0] = {
		.hwport	     = 0,
		.flags	     = 0,
		.ucon	     = 0x3c5,
		.ulcon	     = 0x03,
		.ufcon	     = 0x51,
	},
	[1] = {
		.hwport	     = 1,
		.flags	     = 0,
		.ucon	     = 0x245,
		.ulcon	     = 0x03,
		.ufcon	     = 0x00,
	},
	/* IR port */
	[2] = {
		.hwport	     = 2,
		.flags	     = 0,
		.uart_flags  = UPF_CONS_FLOW,
		.ucon	     = 0x3c5,
		.ulcon	     = 0x43,
		.ufcon	     = 0x51,
	}
};

/* Board control latch control */

static unsigned int latch_state = H1940_LATCH_DEFAULT;

void h1940_latch_control(unsigned int clear, unsigned int set)
{
	unsigned long flags;

	local_irq_save(flags);

	latch_state &= ~clear;
	latch_state |= set;

	__raw_writel(latch_state, H1940_LATCH);

	local_irq_restore(flags);
}

EXPORT_SYMBOL_GPL(h1940_latch_control);

static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
{
	printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);

	switch (cmd)
	{
		case S3C2410_UDC_P_ENABLE :
			h1940_latch_control(0, H1940_LATCH_USB_DP);
			break;
		case S3C2410_UDC_P_DISABLE :
			h1940_latch_control(H1940_LATCH_USB_DP, 0);
			break;
		case S3C2410_UDC_P_RESET :
			break;
		default:
			break;
	}
}

static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
	.udc_command		= h1940_udc_pullup,
	.vbus_pin		= S3C2410_GPG(5),
	.vbus_pin_inverted	= 1,
};


/**
 * Set lcd on or off
 **/
static struct s3c2410fb_display h1940_lcd __initdata = {
	.lcdcon5=	S3C2410_LCDCON5_FRM565 | \
			S3C2410_LCDCON5_INVVLINE | \
			S3C2410_LCDCON5_HWSWP,

	.type =		S3C2410_LCDCON1_TFT,
	.width =	240,
	.height =	320,
	.pixclock =	260000,
	.xres =		240,
	.yres =		320,
	.bpp =		16,
	.left_margin =	20,
	.right_margin =	8,
	.hsync_len =	4,
	.upper_margin =	8,
	.lower_margin = 7,
	.vsync_len =	1,
};

static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
	.displays = &h1940_lcd,
	.num_displays = 1,
	.default_display = 0,

	.lpcsel=	0x02,
	.gpccon=	0xaa940659,
	.gpccon_mask=	0xffffffff,
	.gpcup=		0x0000ffff,
	.gpcup_mask=	0xffffffff,
	.gpdcon=	0xaa84aaa0,
	.gpdcon_mask=	0xffffffff,
	.gpdup=		0x0000faff,
	.gpdup_mask=	0xffffffff,
};

static struct platform_device h1940_device_leds = {
	.name             = "h1940-leds",
	.id               = -1,
};

static struct platform_device h1940_device_bluetooth = {
	.name             = "h1940-bt",
	.id               = -1,
};

static struct s3c24xx_mci_pdata h1940_mmc_cfg = {
	.gpio_detect   = S3C2410_GPF(5),
	.gpio_wprotect = S3C2410_GPH(8),
	.set_power     = NULL,
	.ocr_avail     = MMC_VDD_32_33,
};

static int h1940_backlight_init(struct device *dev)
{
	gpio_request(S3C2410_GPB(0), "Backlight");

	s3c2410_gpio_setpin(S3C2410_GPB(0), 0);
	s3c2410_gpio_pullup(S3C2410_GPB(0), 0);
	s3c2410_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);

	return 0;
}

static void h1940_backlight_exit(struct device *dev)
{
	s3c2410_gpio_cfgpin(S3C2410_GPB(0), 1/*S3C2410_GPB0_OUTP*/);
}

static struct platform_pwm_backlight_data backlight_data = {
	.pwm_id         = 0,
	.max_brightness = 100,
	.dft_brightness = 50,
	/* tcnt = 0x31 */
	.pwm_period_ns  = 36296,
	.init           = h1940_backlight_init,
	.exit           = h1940_backlight_exit,
};

static struct platform_device h1940_backlight = {
	.name = "pwm-backlight",
	.dev  = {
		.parent = &s3c_device_timer[0].dev,
		.platform_data = &backlight_data,
	},
	.id   = -1,
};

static void h1940_lcd_power_set(struct plat_lcd_data *pd,
					unsigned int power)
{
	int value;

	if (!power) {
		/* set to 3ec */
		s3c2410_gpio_setpin(S3C2410_GPC(0), 0);
		/* wait for 3ac */
		do {
			value = s3c2410_gpio_getpin(S3C2410_GPC(6));
		} while (value);
		/* set to 38c */
		s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
	} else {
		/* Set to 3ac */
		s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
		/* Set to 3ad */
		s3c2410_gpio_setpin(S3C2410_GPC(0), 1);
	}
}

static struct plat_lcd_data h1940_lcd_power_data = {
	.set_power      = h1940_lcd_power_set,
};

static struct platform_device h1940_lcd_powerdev = {
	.name                   = "platform-lcd",
	.dev.parent             = &s3c_device_lcd.dev,
	.dev.platform_data      = &h1940_lcd_power_data,
};

static struct platform_device *h1940_devices[] __initdata = {
	&s3c_device_usb,
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_iis,
	&s3c_device_usbgadget,
	&h1940_device_leds,
	&h1940_device_bluetooth,
	&s3c_device_sdi,
	&s3c_device_rtc,
	&s3c_device_timer[0],
	&h1940_backlight,
	&h1940_lcd_powerdev,
};

static void __init h1940_map_io(void)
{
	s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
	s3c24xx_init_clocks(0);
	s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));

	/* setup PM */

#ifdef CONFIG_PM_H1940
	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
#endif
	s3c_pm_init();
}

static void __init h1940_init_irq(void)
{
	s3c24xx_init_irq();
}

static void __init h1940_init(void)
{
	u32 tmp;

	s3c24xx_fb_set_platdata(&h1940_fb_info);
 	s3c24xx_udc_set_platdata(&h1940_udc_cfg);
	s3c_i2c0_set_platdata(NULL);

	s3c_device_sdi.dev.platform_data = &h1940_mmc_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);

	tmp =   (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
	      | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
	      | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
	writel(tmp, S3C2410_UPLLCON);

	gpio_request(S3C2410_GPC(0), "LCD power");
	gpio_request(S3C2410_GPC(5), "LCD power");
	gpio_request(S3C2410_GPC(6), "LCD power");


	platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
}

MACHINE_START(H1940, "IPAQ-H1940")
	/* Maintainer: Ben Dooks <ben@fluff.org> */
	.phys_io	= S3C2410_PA_UART,
	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
	.boot_params	= S3C2410_SDRAM_PA + 0x100,
	.map_io		= h1940_map_io,
	.init_irq	= h1940_init_irq,
	.init_machine	= h1940_init,
	.timer		= &s3c24xx_timer,
MACHINE_END