1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
2 *
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * http://www.handhelds.org/projects/h1940.html
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/interrupt.h>
17 #include <linux/list.h>
18 #include <linux/memblock.h>
19 #include <linux/timer.h>
20 #include <linux/init.h>
21 #include <linux/device.h>
22 #include <linux/serial_core.h>
23 #include <linux/platform_device.h>
24 #include <linux/io.h>
25 #include <linux/gpio.h>
26 #include <linux/input.h>
27 #include <linux/gpio_keys.h>
28 #include <linux/pwm_backlight.h>
29 #include <linux/i2c.h>
30 #include <linux/leds.h>
31 #include <linux/pda_power.h>
32 #include <linux/s3c_adc_battery.h>
33 #include <linux/delay.h>
34
35 #include <video/platform_lcd.h>
36
37 #include <linux/mmc/host.h>
38 #include <linux/export.h>
39
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/irq.h>
43
44 #include <mach/hardware.h>
45 #include <asm/irq.h>
46 #include <asm/mach-types.h>
47
48 #include <plat/regs-serial.h>
49 #include <mach/regs-lcd.h>
50 #include <mach/regs-clock.h>
51
52 #include <mach/regs-gpio.h>
53 #include <mach/gpio-fns.h>
54 #include <mach/gpio-nrs.h>
55
56 #include <mach/h1940.h>
57 #include <mach/h1940-latch.h>
58 #include <mach/fb.h>
59 #include <plat/udc.h>
60 #include <plat/iic.h>
61
62 #include <plat/gpio-cfg.h>
63 #include <plat/clock.h>
64 #include <plat/devs.h>
65 #include <plat/cpu.h>
66 #include <plat/pll.h>
67 #include <plat/pm.h>
68 #include <plat/mci.h>
69 #include <plat/ts.h>
70
71 #include <sound/uda1380.h>
72
73 #include "common.h"
74
75 #define H1940_LATCH ((void __force __iomem *)0xF8000000)
76
77 #define H1940_PA_LATCH S3C2410_CS2
78
79 #define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
80
81 static struct map_desc h1940_iodesc[] __initdata = {
82 [0] = {
83 .virtual = (unsigned long)H1940_LATCH,
84 .pfn = __phys_to_pfn(H1940_PA_LATCH),
85 .length = SZ_16K,
86 .type = MT_DEVICE
87 },
88 };
89
90 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
91 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
92 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
93
94 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
95 [0] = {
96 .hwport = 0,
97 .flags = 0,
98 .ucon = 0x3c5,
99 .ulcon = 0x03,
100 .ufcon = 0x51,
101 },
102 [1] = {
103 .hwport = 1,
104 .flags = 0,
105 .ucon = 0x245,
106 .ulcon = 0x03,
107 .ufcon = 0x00,
108 },
109 /* IR port */
110 [2] = {
111 .hwport = 2,
112 .flags = 0,
113 .uart_flags = UPF_CONS_FLOW,
114 .ucon = 0x3c5,
115 .ulcon = 0x43,
116 .ufcon = 0x51,
117 }
118 };
119
120 /* Board control latch control */
121
122 static unsigned int latch_state;
123
h1940_latch_control(unsigned int clear,unsigned int set)124 static void h1940_latch_control(unsigned int clear, unsigned int set)
125 {
126 unsigned long flags;
127
128 local_irq_save(flags);
129
130 latch_state &= ~clear;
131 latch_state |= set;
132
133 __raw_writel(latch_state, H1940_LATCH);
134
135 local_irq_restore(flags);
136 }
137
h1940_gpiolib_to_latch(int offset)138 static inline int h1940_gpiolib_to_latch(int offset)
139 {
140 return 1 << (offset + 16);
141 }
142
h1940_gpiolib_latch_set(struct gpio_chip * chip,unsigned offset,int value)143 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
144 unsigned offset, int value)
145 {
146 int latch_bit = h1940_gpiolib_to_latch(offset);
147
148 h1940_latch_control(value ? 0 : latch_bit,
149 value ? latch_bit : 0);
150 }
151
h1940_gpiolib_latch_output(struct gpio_chip * chip,unsigned offset,int value)152 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
153 unsigned offset, int value)
154 {
155 h1940_gpiolib_latch_set(chip, offset, value);
156 return 0;
157 }
158
h1940_gpiolib_latch_get(struct gpio_chip * chip,unsigned offset)159 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
160 unsigned offset)
161 {
162 return (latch_state >> (offset + 16)) & 1;
163 }
164
165 struct gpio_chip h1940_latch_gpiochip = {
166 .base = H1940_LATCH_GPIO(0),
167 .owner = THIS_MODULE,
168 .label = "H1940_LATCH",
169 .ngpio = 16,
170 .direction_output = h1940_gpiolib_latch_output,
171 .set = h1940_gpiolib_latch_set,
172 .get = h1940_gpiolib_latch_get,
173 };
174
175 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
176 .vbus_pin = S3C2410_GPG(5),
177 .vbus_pin_inverted = 1,
178 .pullup_pin = H1940_LATCH_USB_DP,
179 };
180
181 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
182 .delay = 10000,
183 .presc = 49,
184 .oversampling_shift = 2,
185 .cfg_gpio = s3c24xx_ts_cfg_gpio,
186 };
187
188 /**
189 * Set lcd on or off
190 **/
191 static struct s3c2410fb_display h1940_lcd __initdata = {
192 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
193 S3C2410_LCDCON5_INVVLINE | \
194 S3C2410_LCDCON5_HWSWP,
195
196 .type = S3C2410_LCDCON1_TFT,
197 .width = 240,
198 .height = 320,
199 .pixclock = 260000,
200 .xres = 240,
201 .yres = 320,
202 .bpp = 16,
203 .left_margin = 8,
204 .right_margin = 20,
205 .hsync_len = 4,
206 .upper_margin = 8,
207 .lower_margin = 7,
208 .vsync_len = 1,
209 };
210
211 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
212 .displays = &h1940_lcd,
213 .num_displays = 1,
214 .default_display = 0,
215
216 .lpcsel = 0x02,
217 .gpccon = 0xaa940659,
218 .gpccon_mask = 0xffffc0f0,
219 .gpcup = 0x0000ffff,
220 .gpcup_mask = 0xffffffff,
221 .gpdcon = 0xaa84aaa0,
222 .gpdcon_mask = 0xffffffff,
223 .gpdup = 0x0000faff,
224 .gpdup_mask = 0xffffffff,
225 };
226
power_supply_init(struct device * dev)227 static int power_supply_init(struct device *dev)
228 {
229 return gpio_request(S3C2410_GPF(2), "cable plugged");
230 }
231
h1940_is_ac_online(void)232 static int h1940_is_ac_online(void)
233 {
234 return !gpio_get_value(S3C2410_GPF(2));
235 }
236
power_supply_exit(struct device * dev)237 static void power_supply_exit(struct device *dev)
238 {
239 gpio_free(S3C2410_GPF(2));
240 }
241
242 static char *h1940_supplicants[] = {
243 "main-battery",
244 "backup-battery",
245 };
246
247 static struct pda_power_pdata power_supply_info = {
248 .init = power_supply_init,
249 .is_ac_online = h1940_is_ac_online,
250 .exit = power_supply_exit,
251 .supplied_to = h1940_supplicants,
252 .num_supplicants = ARRAY_SIZE(h1940_supplicants),
253 };
254
255 static struct resource power_supply_resources[] = {
256 [0] = {
257 .name = "ac",
258 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
259 IORESOURCE_IRQ_HIGHEDGE,
260 .start = IRQ_EINT2,
261 .end = IRQ_EINT2,
262 },
263 };
264
265 static struct platform_device power_supply = {
266 .name = "pda-power",
267 .id = -1,
268 .dev = {
269 .platform_data =
270 &power_supply_info,
271 },
272 .resource = power_supply_resources,
273 .num_resources = ARRAY_SIZE(power_supply_resources),
274 };
275
276 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
277 { .volt = 4070, .cur = 162, .level = 100},
278 { .volt = 4040, .cur = 165, .level = 95},
279 { .volt = 4016, .cur = 164, .level = 90},
280 { .volt = 3996, .cur = 166, .level = 85},
281 { .volt = 3971, .cur = 168, .level = 80},
282 { .volt = 3951, .cur = 168, .level = 75},
283 { .volt = 3931, .cur = 170, .level = 70},
284 { .volt = 3903, .cur = 172, .level = 65},
285 { .volt = 3886, .cur = 172, .level = 60},
286 { .volt = 3858, .cur = 176, .level = 55},
287 { .volt = 3842, .cur = 176, .level = 50},
288 { .volt = 3818, .cur = 176, .level = 45},
289 { .volt = 3789, .cur = 180, .level = 40},
290 { .volt = 3769, .cur = 180, .level = 35},
291 { .volt = 3749, .cur = 184, .level = 30},
292 { .volt = 3732, .cur = 184, .level = 25},
293 { .volt = 3716, .cur = 184, .level = 20},
294 { .volt = 3708, .cur = 184, .level = 15},
295 { .volt = 3716, .cur = 96, .level = 10},
296 { .volt = 3700, .cur = 96, .level = 5},
297 { .volt = 3684, .cur = 96, .level = 0},
298 };
299
300 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
301 { .volt = 4130, .cur = 0, .level = 100},
302 { .volt = 3982, .cur = 0, .level = 50},
303 { .volt = 3854, .cur = 0, .level = 10},
304 { .volt = 3841, .cur = 0, .level = 0},
305 };
306
h1940_bat_init(void)307 int h1940_bat_init(void)
308 {
309 int ret;
310
311 ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
312 if (ret)
313 return ret;
314 gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
315
316 return 0;
317
318 }
319
h1940_bat_exit(void)320 void h1940_bat_exit(void)
321 {
322 gpio_free(H1940_LATCH_SM803_ENABLE);
323 }
324
h1940_enable_charger(void)325 void h1940_enable_charger(void)
326 {
327 gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
328 }
329
h1940_disable_charger(void)330 void h1940_disable_charger(void)
331 {
332 gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
333 }
334
335 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
336 .init = h1940_bat_init,
337 .exit = h1940_bat_exit,
338 .enable_charger = h1940_enable_charger,
339 .disable_charger = h1940_disable_charger,
340 .gpio_charge_finished = S3C2410_GPF(3),
341 .gpio_inverted = 1,
342 .lut_noac = bat_lut_noac,
343 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
344 .lut_acin = bat_lut_acin,
345 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
346 .volt_channel = 0,
347 .current_channel = 1,
348 .volt_mult = 4056,
349 .current_mult = 1893,
350 .internal_impedance = 200,
351 .backup_volt_channel = 3,
352 /* TODO Check backup volt multiplier */
353 .backup_volt_mult = 4056,
354 .backup_volt_min = 0,
355 .backup_volt_max = 4149288
356 };
357
358 static struct platform_device h1940_battery = {
359 .name = "s3c-adc-battery",
360 .id = -1,
361 .dev = {
362 .parent = &s3c_device_adc.dev,
363 .platform_data = &h1940_bat_cfg,
364 },
365 };
366
367 DEFINE_SPINLOCK(h1940_blink_spin);
368
h1940_led_blink_set(unsigned gpio,int state,unsigned long * delay_on,unsigned long * delay_off)369 int h1940_led_blink_set(unsigned gpio, int state,
370 unsigned long *delay_on, unsigned long *delay_off)
371 {
372 int blink_gpio, check_gpio1, check_gpio2;
373
374 switch (gpio) {
375 case H1940_LATCH_LED_GREEN:
376 blink_gpio = S3C2410_GPA(7);
377 check_gpio1 = S3C2410_GPA(1);
378 check_gpio2 = S3C2410_GPA(3);
379 break;
380 case H1940_LATCH_LED_RED:
381 blink_gpio = S3C2410_GPA(1);
382 check_gpio1 = S3C2410_GPA(7);
383 check_gpio2 = S3C2410_GPA(3);
384 break;
385 default:
386 blink_gpio = S3C2410_GPA(3);
387 check_gpio1 = S3C2410_GPA(1);
388 check_gpio1 = S3C2410_GPA(7);
389 break;
390 }
391
392 if (delay_on && delay_off && !*delay_on && !*delay_off)
393 *delay_on = *delay_off = 500;
394
395 spin_lock(&h1940_blink_spin);
396
397 switch (state) {
398 case GPIO_LED_NO_BLINK_LOW:
399 case GPIO_LED_NO_BLINK_HIGH:
400 if (!gpio_get_value(check_gpio1) &&
401 !gpio_get_value(check_gpio2))
402 gpio_set_value(H1940_LATCH_LED_FLASH, 0);
403 gpio_set_value(blink_gpio, 0);
404 if (gpio_is_valid(gpio))
405 gpio_set_value(gpio, state);
406 break;
407 case GPIO_LED_BLINK:
408 if (gpio_is_valid(gpio))
409 gpio_set_value(gpio, 0);
410 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
411 gpio_set_value(blink_gpio, 1);
412 break;
413 }
414
415 spin_unlock(&h1940_blink_spin);
416
417 return 0;
418 }
419 EXPORT_SYMBOL(h1940_led_blink_set);
420
421 static struct gpio_led h1940_leds_desc[] = {
422 {
423 .name = "Green",
424 .default_trigger = "main-battery-full",
425 .gpio = H1940_LATCH_LED_GREEN,
426 .retain_state_suspended = 1,
427 },
428 {
429 .name = "Red",
430 .default_trigger
431 = "main-battery-charging-blink-full-solid",
432 .gpio = H1940_LATCH_LED_RED,
433 .retain_state_suspended = 1,
434 },
435 };
436
437 static struct gpio_led_platform_data h1940_leds_pdata = {
438 .num_leds = ARRAY_SIZE(h1940_leds_desc),
439 .leds = h1940_leds_desc,
440 .gpio_blink_set = h1940_led_blink_set,
441 };
442
443 static struct platform_device h1940_device_leds = {
444 .name = "leds-gpio",
445 .id = -1,
446 .dev = {
447 .platform_data = &h1940_leds_pdata,
448 },
449 };
450
451 static struct platform_device h1940_device_bluetooth = {
452 .name = "h1940-bt",
453 .id = -1,
454 };
455
h1940_set_mmc_power(unsigned char power_mode,unsigned short vdd)456 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
457 {
458 switch (power_mode) {
459 case MMC_POWER_OFF:
460 gpio_set_value(H1940_LATCH_SD_POWER, 0);
461 break;
462 case MMC_POWER_UP:
463 case MMC_POWER_ON:
464 gpio_set_value(H1940_LATCH_SD_POWER, 1);
465 break;
466 default:
467 break;
468 };
469 }
470
471 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
472 .gpio_detect = S3C2410_GPF(5),
473 .gpio_wprotect = S3C2410_GPH(8),
474 .set_power = h1940_set_mmc_power,
475 .ocr_avail = MMC_VDD_32_33,
476 };
477
h1940_backlight_init(struct device * dev)478 static int h1940_backlight_init(struct device *dev)
479 {
480 gpio_request(S3C2410_GPB(0), "Backlight");
481
482 gpio_direction_output(S3C2410_GPB(0), 0);
483 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
484 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
485 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
486
487 return 0;
488 }
489
h1940_backlight_notify(struct device * dev,int brightness)490 static int h1940_backlight_notify(struct device *dev, int brightness)
491 {
492 if (!brightness) {
493 gpio_direction_output(S3C2410_GPB(0), 1);
494 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
495 } else {
496 gpio_direction_output(S3C2410_GPB(0), 0);
497 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
498 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
499 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
500 }
501 return brightness;
502 }
503
h1940_backlight_exit(struct device * dev)504 static void h1940_backlight_exit(struct device *dev)
505 {
506 gpio_direction_output(S3C2410_GPB(0), 1);
507 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
508 }
509
510
511 static struct platform_pwm_backlight_data backlight_data = {
512 .pwm_id = 0,
513 .max_brightness = 100,
514 .dft_brightness = 50,
515 /* tcnt = 0x31 */
516 .pwm_period_ns = 36296,
517 .init = h1940_backlight_init,
518 .notify = h1940_backlight_notify,
519 .exit = h1940_backlight_exit,
520 };
521
522 static struct platform_device h1940_backlight = {
523 .name = "pwm-backlight",
524 .dev = {
525 .parent = &s3c_device_timer[0].dev,
526 .platform_data = &backlight_data,
527 },
528 .id = -1,
529 };
530
h1940_lcd_power_set(struct plat_lcd_data * pd,unsigned int power)531 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
532 unsigned int power)
533 {
534 int value, retries = 100;
535
536 if (!power) {
537 gpio_set_value(S3C2410_GPC(0), 0);
538 /* wait for 3ac */
539 do {
540 value = gpio_get_value(S3C2410_GPC(6));
541 } while (value && retries--);
542
543 gpio_set_value(H1940_LATCH_LCD_P2, 0);
544 gpio_set_value(H1940_LATCH_LCD_P3, 0);
545 gpio_set_value(H1940_LATCH_LCD_P4, 0);
546
547 gpio_direction_output(S3C2410_GPC(1), 0);
548 gpio_direction_output(S3C2410_GPC(4), 0);
549
550 gpio_set_value(H1940_LATCH_LCD_P1, 0);
551 gpio_set_value(H1940_LATCH_LCD_P0, 0);
552
553 gpio_set_value(S3C2410_GPC(5), 0);
554
555 } else {
556 gpio_set_value(H1940_LATCH_LCD_P0, 1);
557 gpio_set_value(H1940_LATCH_LCD_P1, 1);
558
559 gpio_direction_input(S3C2410_GPC(1));
560 gpio_direction_input(S3C2410_GPC(4));
561 mdelay(10);
562 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
563 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
564
565 gpio_set_value(S3C2410_GPC(5), 1);
566 gpio_set_value(S3C2410_GPC(0), 1);
567
568 gpio_set_value(H1940_LATCH_LCD_P3, 1);
569 gpio_set_value(H1940_LATCH_LCD_P2, 1);
570 gpio_set_value(H1940_LATCH_LCD_P4, 1);
571 }
572 }
573
574 static struct plat_lcd_data h1940_lcd_power_data = {
575 .set_power = h1940_lcd_power_set,
576 };
577
578 static struct platform_device h1940_lcd_powerdev = {
579 .name = "platform-lcd",
580 .dev.parent = &s3c_device_lcd.dev,
581 .dev.platform_data = &h1940_lcd_power_data,
582 };
583
584 static struct uda1380_platform_data uda1380_info = {
585 .gpio_power = H1940_LATCH_UDA_POWER,
586 .gpio_reset = S3C2410_GPA(12),
587 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
588 };
589
590 static struct i2c_board_info h1940_i2c_devices[] = {
591 {
592 I2C_BOARD_INFO("uda1380", 0x1a),
593 .platform_data = &uda1380_info,
594 },
595 };
596
597 #define DECLARE_BUTTON(p, k, n, w) \
598 { \
599 .gpio = p, \
600 .code = k, \
601 .desc = n, \
602 .wakeup = w, \
603 .active_low = 1, \
604 }
605
606 static struct gpio_keys_button h1940_buttons[] = {
607 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
608 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
609 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
610 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
611 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
612 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
613 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
614 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
615 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
616 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
617 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
618 };
619
620 static struct gpio_keys_platform_data h1940_buttons_data = {
621 .buttons = h1940_buttons,
622 .nbuttons = ARRAY_SIZE(h1940_buttons),
623 };
624
625 static struct platform_device h1940_dev_buttons = {
626 .name = "gpio-keys",
627 .id = -1,
628 .dev = {
629 .platform_data = &h1940_buttons_data,
630 }
631 };
632
633 static struct platform_device *h1940_devices[] __initdata = {
634 &h1940_dev_buttons,
635 &s3c_device_ohci,
636 &s3c_device_lcd,
637 &s3c_device_wdt,
638 &s3c_device_i2c0,
639 &s3c_device_iis,
640 &samsung_asoc_dma,
641 &s3c_device_usbgadget,
642 &h1940_device_leds,
643 &h1940_device_bluetooth,
644 &s3c_device_sdi,
645 &s3c_device_rtc,
646 &s3c_device_timer[0],
647 &h1940_backlight,
648 &h1940_lcd_powerdev,
649 &s3c_device_adc,
650 &s3c_device_ts,
651 &power_supply,
652 &h1940_battery,
653 };
654
h1940_map_io(void)655 static void __init h1940_map_io(void)
656 {
657 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
658 s3c24xx_init_clocks(0);
659 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
660
661 /* setup PM */
662
663 #ifdef CONFIG_PM_H1940
664 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
665 #endif
666 s3c_pm_init();
667
668 /* Add latch gpio chip, set latch initial value */
669 h1940_latch_control(0, 0);
670 WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
671 }
672
673 /* H1940 and RX3715 need to reserve this for suspend */
h1940_reserve(void)674 static void __init h1940_reserve(void)
675 {
676 memblock_reserve(0x30003000, 0x1000);
677 memblock_reserve(0x30081000, 0x1000);
678 }
679
h1940_init_irq(void)680 static void __init h1940_init_irq(void)
681 {
682 s3c24xx_init_irq();
683 }
684
h1940_init(void)685 static void __init h1940_init(void)
686 {
687 u32 tmp;
688
689 s3c24xx_fb_set_platdata(&h1940_fb_info);
690 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
691 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
692 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
693 s3c_i2c0_set_platdata(NULL);
694
695 /* Turn off suspend on both USB ports, and switch the
696 * selectable USB port to USB device mode. */
697
698 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
699 S3C2410_MISCCR_USBSUSPND0 |
700 S3C2410_MISCCR_USBSUSPND1, 0x0);
701
702 tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
703 | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
704 | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
705 writel(tmp, S3C2410_UPLLCON);
706
707 gpio_request(S3C2410_GPC(0), "LCD power");
708 gpio_request(S3C2410_GPC(1), "LCD power");
709 gpio_request(S3C2410_GPC(4), "LCD power");
710 gpio_request(S3C2410_GPC(5), "LCD power");
711 gpio_request(S3C2410_GPC(6), "LCD power");
712 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
713 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
714 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
715 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
716 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
717 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
718 gpio_direction_output(S3C2410_GPC(0), 0);
719 gpio_direction_output(S3C2410_GPC(1), 0);
720 gpio_direction_output(S3C2410_GPC(4), 0);
721 gpio_direction_output(S3C2410_GPC(5), 0);
722 gpio_direction_input(S3C2410_GPC(6));
723 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
724 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
725 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
726 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
727 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
728 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
729
730 gpio_request(H1940_LATCH_SD_POWER, "SD power");
731 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
732
733 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
734
735 gpio_request(S3C2410_GPA(1), "Red LED blink");
736 gpio_request(S3C2410_GPA(3), "Blue LED blink");
737 gpio_request(S3C2410_GPA(7), "Green LED blink");
738 gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
739 gpio_direction_output(S3C2410_GPA(1), 0);
740 gpio_direction_output(S3C2410_GPA(3), 0);
741 gpio_direction_output(S3C2410_GPA(7), 0);
742 gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
743
744 i2c_register_board_info(0, h1940_i2c_devices,
745 ARRAY_SIZE(h1940_i2c_devices));
746 }
747
748 MACHINE_START(H1940, "IPAQ-H1940")
749 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
750 .atag_offset = 0x100,
751 .map_io = h1940_map_io,
752 .reserve = h1940_reserve,
753 .init_irq = h1940_init_irq,
754 .init_machine = h1940_init,
755 .timer = &s3c24xx_timer,
756 .restart = s3c2410_restart,
757 MACHINE_END
758