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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-s3c24xx/mach-h1940.c

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  1 /*
  2  * Copyright (c) 2003-2005 Simtec Electronics
  3  *   Ben Dooks <ben@simtec.co.uk>
  4  *
  5  * http://www.handhelds.org/projects/h1940.html
  6  *
  7  * This program is free software; you can redistribute it and/or modify
  8  * it under the terms of the GNU General Public License version 2 as
  9  * published by the Free Software Foundation.
 10  *
 11 */
 12 
 13 #include <linux/kernel.h>
 14 #include <linux/types.h>
 15 #include <linux/interrupt.h>
 16 #include <linux/list.h>
 17 #include <linux/memblock.h>
 18 #include <linux/timer.h>
 19 #include <linux/init.h>
 20 #include <linux/device.h>
 21 #include <linux/serial_core.h>
 22 #include <linux/serial_s3c.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.h>
 29 #include <linux/pwm_backlight.h>
 30 #include <linux/i2c.h>
 31 #include <linux/leds.h>
 32 #include <linux/pda_power.h>
 33 #include <linux/s3c_adc_battery.h>
 34 #include <linux/delay.h>
 35 
 36 #include <video/platform_lcd.h>
 37 
 38 #include <linux/mmc/host.h>
 39 #include <linux/export.h>
 40 
 41 #include <asm/irq.h>
 42 #include <asm/mach-types.h>
 43 #include <asm/mach/arch.h>
 44 #include <asm/mach/map.h>
 45 #include <asm/mach/irq.h>
 46 
 47 #include <linux/platform_data/i2c-s3c2410.h>
 48 #include <linux/platform_data/mmc-s3cmci.h>
 49 #include <linux/platform_data/touchscreen-s3c2410.h>
 50 #include <linux/platform_data/usb-s3c2410_udc.h>
 51 
 52 #include <sound/uda1380.h>
 53 
 54 #include <mach/fb.h>
 55 #include <mach/hardware.h>
 56 #include <mach/regs-clock.h>
 57 #include <mach/regs-gpio.h>
 58 #include <mach/regs-lcd.h>
 59 #include <mach/gpio-samsung.h>
 60 
 61 #include <plat/cpu.h>
 62 #include <plat/devs.h>
 63 #include <plat/gpio-cfg.h>
 64 #include <plat/pm.h>
 65 #include <plat/samsung-time.h>
 66 
 67 #include "common.h"
 68 #include "h1940.h"
 69 
 70 #define H1940_LATCH             ((void __force __iomem *)0xF8000000)
 71 
 72 #define H1940_PA_LATCH          S3C2410_CS2
 73 
 74 #define H1940_LATCH_BIT(x)      (1 << ((x) + 16 - S3C_GPIO_END))
 75 
 76 #define S3C24XX_PLL_MDIV_SHIFT         (12)
 77 #define S3C24XX_PLL_PDIV_SHIFT         (4)
 78 #define S3C24XX_PLL_SDIV_SHIFT         (0)
 79 
 80 static struct map_desc h1940_iodesc[] __initdata = {
 81         [0] = {
 82                 .virtual        = (unsigned long)H1940_LATCH,
 83                 .pfn            = __phys_to_pfn(H1940_PA_LATCH),
 84                 .length         = SZ_16K,
 85                 .type           = MT_DEVICE
 86         },
 87 };
 88 
 89 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 90 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 91 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 92 
 93 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
 94         [0] = {
 95                 .hwport      = 0,
 96                 .flags       = 0,
 97                 .ucon        = 0x3c5,
 98                 .ulcon       = 0x03,
 99                 .ufcon       = 0x51,
100         },
101         [1] = {
102                 .hwport      = 1,
103                 .flags       = 0,
104                 .ucon        = 0x245,
105                 .ulcon       = 0x03,
106                 .ufcon       = 0x00,
107         },
108         /* IR port */
109         [2] = {
110                 .hwport      = 2,
111                 .flags       = 0,
112                 .uart_flags  = UPF_CONS_FLOW,
113                 .ucon        = 0x3c5,
114                 .ulcon       = 0x43,
115                 .ufcon       = 0x51,
116         }
117 };
118 
119 /* Board control latch control */
120 
121 static unsigned int latch_state;
122 
123 static void h1940_latch_control(unsigned int clear, unsigned int set)
124 {
125         unsigned long flags;
126 
127         local_irq_save(flags);
128 
129         latch_state &= ~clear;
130         latch_state |= set;
131 
132         __raw_writel(latch_state, H1940_LATCH);
133 
134         local_irq_restore(flags);
135 }
136 
137 static inline int h1940_gpiolib_to_latch(int offset)
138 {
139         return 1 << (offset + 16);
140 }
141 
142 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
143                                         unsigned offset, int value)
144 {
145         int latch_bit = h1940_gpiolib_to_latch(offset);
146 
147         h1940_latch_control(value ? 0 : latch_bit,
148                 value ? latch_bit : 0);
149 }
150 
151 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
152                                         unsigned offset, int value)
153 {
154         h1940_gpiolib_latch_set(chip, offset, value);
155         return 0;
156 }
157 
158 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
159                                         unsigned offset)
160 {
161         return (latch_state >> (offset + 16)) & 1;
162 }
163 
164 static struct gpio_chip h1940_latch_gpiochip = {
165         .base                   = H1940_LATCH_GPIO(0),
166         .owner                  = THIS_MODULE,
167         .label                  = "H1940_LATCH",
168         .ngpio                  = 16,
169         .direction_output       = h1940_gpiolib_latch_output,
170         .set                    = h1940_gpiolib_latch_set,
171         .get                    = h1940_gpiolib_latch_get,
172 };
173 
174 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
175         .vbus_pin               = S3C2410_GPG(5),
176         .vbus_pin_inverted      = 1,
177         .pullup_pin             = H1940_LATCH_USB_DP,
178 };
179 
180 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
181                 .delay = 10000,
182                 .presc = 49,
183                 .oversampling_shift = 2,
184                 .cfg_gpio = s3c24xx_ts_cfg_gpio,
185 };
186 
187 /**
188  * Set lcd on or off
189  **/
190 static struct s3c2410fb_display h1940_lcd __initdata = {
191         .lcdcon5=       S3C2410_LCDCON5_FRM565 | \
192                         S3C2410_LCDCON5_INVVLINE | \
193                         S3C2410_LCDCON5_HWSWP,
194 
195         .type =         S3C2410_LCDCON1_TFT,
196         .width =        240,
197         .height =       320,
198         .pixclock =     260000,
199         .xres =         240,
200         .yres =         320,
201         .bpp =          16,
202         .left_margin =  8,
203         .right_margin = 20,
204         .hsync_len =    4,
205         .upper_margin = 8,
206         .lower_margin = 7,
207         .vsync_len =    1,
208 };
209 
210 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
211         .displays = &h1940_lcd,
212         .num_displays = 1,
213         .default_display = 0,
214 
215         .lpcsel =       0x02,
216         .gpccon =       0xaa940659,
217         .gpccon_mask =  0xffffc0f0,
218         .gpcup =        0x0000ffff,
219         .gpcup_mask =   0xffffffff,
220         .gpdcon =       0xaa84aaa0,
221         .gpdcon_mask =  0xffffffff,
222         .gpdup =        0x0000faff,
223         .gpdup_mask =   0xffffffff,
224 };
225 
226 static int power_supply_init(struct device *dev)
227 {
228         return gpio_request(S3C2410_GPF(2), "cable plugged");
229 }
230 
231 static int h1940_is_ac_online(void)
232 {
233         return !gpio_get_value(S3C2410_GPF(2));
234 }
235 
236 static void power_supply_exit(struct device *dev)
237 {
238         gpio_free(S3C2410_GPF(2));
239 }
240 
241 static char *h1940_supplicants[] = {
242         "main-battery",
243         "backup-battery",
244 };
245 
246 static struct pda_power_pdata power_supply_info = {
247         .init                   = power_supply_init,
248         .is_ac_online           = h1940_is_ac_online,
249         .exit                   = power_supply_exit,
250         .supplied_to            = h1940_supplicants,
251         .num_supplicants        = ARRAY_SIZE(h1940_supplicants),
252 };
253 
254 static struct resource power_supply_resources[] = {
255         [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
256                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
257 };
258 
259 static struct platform_device power_supply = {
260         .name           = "pda-power",
261         .id             = -1,
262         .dev            = {
263                                 .platform_data =
264                                         &power_supply_info,
265         },
266         .resource       = power_supply_resources,
267         .num_resources  = ARRAY_SIZE(power_supply_resources),
268 };
269 
270 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
271         { .volt = 4070, .cur = 162, .level = 100},
272         { .volt = 4040, .cur = 165, .level = 95},
273         { .volt = 4016, .cur = 164, .level = 90},
274         { .volt = 3996, .cur = 166, .level = 85},
275         { .volt = 3971, .cur = 168, .level = 80},
276         { .volt = 3951, .cur = 168, .level = 75},
277         { .volt = 3931, .cur = 170, .level = 70},
278         { .volt = 3903, .cur = 172, .level = 65},
279         { .volt = 3886, .cur = 172, .level = 60},
280         { .volt = 3858, .cur = 176, .level = 55},
281         { .volt = 3842, .cur = 176, .level = 50},
282         { .volt = 3818, .cur = 176, .level = 45},
283         { .volt = 3789, .cur = 180, .level = 40},
284         { .volt = 3769, .cur = 180, .level = 35},
285         { .volt = 3749, .cur = 184, .level = 30},
286         { .volt = 3732, .cur = 184, .level = 25},
287         { .volt = 3716, .cur = 184, .level = 20},
288         { .volt = 3708, .cur = 184, .level = 15},
289         { .volt = 3716, .cur = 96, .level = 10},
290         { .volt = 3700, .cur = 96, .level = 5},
291         { .volt = 3684, .cur = 96, .level = 0},
292 };
293 
294 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
295         { .volt = 4130, .cur = 0, .level = 100},
296         { .volt = 3982, .cur = 0, .level = 50},
297         { .volt = 3854, .cur = 0, .level = 10},
298         { .volt = 3841, .cur = 0, .level = 0},
299 };
300 
301 static int h1940_bat_init(void)
302 {
303         int ret;
304 
305         ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
306         if (ret)
307                 return ret;
308         gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
309 
310         return 0;
311 
312 }
313 
314 static void h1940_bat_exit(void)
315 {
316         gpio_free(H1940_LATCH_SM803_ENABLE);
317 }
318 
319 static void h1940_enable_charger(void)
320 {
321         gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
322 }
323 
324 static void h1940_disable_charger(void)
325 {
326         gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
327 }
328 
329 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
330         .init = h1940_bat_init,
331         .exit = h1940_bat_exit,
332         .enable_charger = h1940_enable_charger,
333         .disable_charger = h1940_disable_charger,
334         .gpio_charge_finished = S3C2410_GPF(3),
335         .gpio_inverted = 1,
336         .lut_noac = bat_lut_noac,
337         .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
338         .lut_acin = bat_lut_acin,
339         .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
340         .volt_channel = 0,
341         .current_channel = 1,
342         .volt_mult = 4056,
343         .current_mult = 1893,
344         .internal_impedance = 200,
345         .backup_volt_channel = 3,
346         /* TODO Check backup volt multiplier */
347         .backup_volt_mult = 4056,
348         .backup_volt_min = 0,
349         .backup_volt_max = 4149288
350 };
351 
352 static struct platform_device h1940_battery = {
353         .name             = "s3c-adc-battery",
354         .id               = -1,
355         .dev = {
356                 .parent = &s3c_device_adc.dev,
357                 .platform_data = &h1940_bat_cfg,
358         },
359 };
360 
361 static DEFINE_SPINLOCK(h1940_blink_spin);
362 
363 int h1940_led_blink_set(struct gpio_desc *desc, int state,
364         unsigned long *delay_on, unsigned long *delay_off)
365 {
366         int blink_gpio, check_gpio1, check_gpio2;
367         int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
368 
369         switch (gpio) {
370         case H1940_LATCH_LED_GREEN:
371                 blink_gpio = S3C2410_GPA(7);
372                 check_gpio1 = S3C2410_GPA(1);
373                 check_gpio2 = S3C2410_GPA(3);
374                 break;
375         case H1940_LATCH_LED_RED:
376                 blink_gpio = S3C2410_GPA(1);
377                 check_gpio1 = S3C2410_GPA(7);
378                 check_gpio2 = S3C2410_GPA(3);
379                 break;
380         default:
381                 blink_gpio = S3C2410_GPA(3);
382                 check_gpio1 = S3C2410_GPA(1);
383                 check_gpio2 = S3C2410_GPA(7);
384                 break;
385         }
386 
387         if (delay_on && delay_off && !*delay_on && !*delay_off)
388                 *delay_on = *delay_off = 500;
389 
390         spin_lock(&h1940_blink_spin);
391 
392         switch (state) {
393         case GPIO_LED_NO_BLINK_LOW:
394         case GPIO_LED_NO_BLINK_HIGH:
395                 if (!gpio_get_value(check_gpio1) &&
396                     !gpio_get_value(check_gpio2))
397                         gpio_set_value(H1940_LATCH_LED_FLASH, 0);
398                 gpio_set_value(blink_gpio, 0);
399                 if (gpio_is_valid(gpio))
400                         gpio_set_value(gpio, state);
401                 break;
402         case GPIO_LED_BLINK:
403                 if (gpio_is_valid(gpio))
404                         gpio_set_value(gpio, 0);
405                 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
406                 gpio_set_value(blink_gpio, 1);
407                 break;
408         }
409 
410         spin_unlock(&h1940_blink_spin);
411 
412         return 0;
413 }
414 EXPORT_SYMBOL(h1940_led_blink_set);
415 
416 static struct gpio_led h1940_leds_desc[] = {
417         {
418                 .name                   = "Green",
419                 .default_trigger        = "main-battery-full",
420                 .gpio                   = H1940_LATCH_LED_GREEN,
421                 .retain_state_suspended = 1,
422         },
423         {
424                 .name                   = "Red",
425                 .default_trigger
426                         = "main-battery-charging-blink-full-solid",
427                 .gpio                   = H1940_LATCH_LED_RED,
428                 .retain_state_suspended = 1,
429         },
430 };
431 
432 static struct gpio_led_platform_data h1940_leds_pdata = {
433         .num_leds       = ARRAY_SIZE(h1940_leds_desc),
434         .leds           = h1940_leds_desc,
435         .gpio_blink_set = h1940_led_blink_set,
436 };
437 
438 static struct platform_device h1940_device_leds = {
439         .name   = "leds-gpio",
440         .id     = -1,
441         .dev    = {
442                         .platform_data = &h1940_leds_pdata,
443         },
444 };
445 
446 static struct platform_device h1940_device_bluetooth = {
447         .name             = "h1940-bt",
448         .id               = -1,
449 };
450 
451 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
452 {
453         switch (power_mode) {
454         case MMC_POWER_OFF:
455                 gpio_set_value(H1940_LATCH_SD_POWER, 0);
456                 break;
457         case MMC_POWER_UP:
458         case MMC_POWER_ON:
459                 gpio_set_value(H1940_LATCH_SD_POWER, 1);
460                 break;
461         default:
462                 break;
463         }
464 }
465 
466 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
467         .gpio_detect   = S3C2410_GPF(5),
468         .gpio_wprotect = S3C2410_GPH(8),
469         .set_power     = h1940_set_mmc_power,
470         .ocr_avail     = MMC_VDD_32_33,
471 };
472 
473 static struct pwm_lookup h1940_pwm_lookup[] = {
474         PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
475                    PWM_POLARITY_NORMAL),
476 };
477 
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 
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 
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         .max_brightness = 100,
513         .dft_brightness = 50,
514         .enable_gpio    = -1,
515         .init           = h1940_backlight_init,
516         .notify         = h1940_backlight_notify,
517         .exit           = h1940_backlight_exit,
518 };
519 
520 static struct platform_device h1940_backlight = {
521         .name = "pwm-backlight",
522         .dev  = {
523                 .parent = &samsung_device_pwm.dev,
524                 .platform_data = &backlight_data,
525         },
526         .id   = -1,
527 };
528 
529 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
530                                         unsigned int power)
531 {
532         int value, retries = 100;
533 
534         if (!power) {
535                 gpio_set_value(S3C2410_GPC(0), 0);
536                 /* wait for 3ac */
537                 do {
538                         value = gpio_get_value(S3C2410_GPC(6));
539                 } while (value && retries--);
540 
541                 gpio_set_value(H1940_LATCH_LCD_P2, 0);
542                 gpio_set_value(H1940_LATCH_LCD_P3, 0);
543                 gpio_set_value(H1940_LATCH_LCD_P4, 0);
544 
545                 gpio_direction_output(S3C2410_GPC(1), 0);
546                 gpio_direction_output(S3C2410_GPC(4), 0);
547 
548                 gpio_set_value(H1940_LATCH_LCD_P1, 0);
549                 gpio_set_value(H1940_LATCH_LCD_P0, 0);
550 
551                 gpio_set_value(S3C2410_GPC(5), 0);
552 
553         } else {
554                 gpio_set_value(H1940_LATCH_LCD_P0, 1);
555                 gpio_set_value(H1940_LATCH_LCD_P1, 1);
556 
557                 gpio_direction_input(S3C2410_GPC(1));
558                 gpio_direction_input(S3C2410_GPC(4));
559                 mdelay(10);
560                 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
561                 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
562 
563                 gpio_set_value(S3C2410_GPC(5), 1);
564                 gpio_set_value(S3C2410_GPC(0), 1);
565 
566                 gpio_set_value(H1940_LATCH_LCD_P3, 1);
567                 gpio_set_value(H1940_LATCH_LCD_P2, 1);
568                 gpio_set_value(H1940_LATCH_LCD_P4, 1);
569         }
570 }
571 
572 static struct plat_lcd_data h1940_lcd_power_data = {
573         .set_power      = h1940_lcd_power_set,
574 };
575 
576 static struct platform_device h1940_lcd_powerdev = {
577         .name                   = "platform-lcd",
578         .dev.parent             = &s3c_device_lcd.dev,
579         .dev.platform_data      = &h1940_lcd_power_data,
580 };
581 
582 static struct uda1380_platform_data uda1380_info = {
583         .gpio_power     = H1940_LATCH_UDA_POWER,
584         .gpio_reset     = S3C2410_GPA(12),
585         .dac_clk        = UDA1380_DAC_CLK_SYSCLK,
586 };
587 
588 static struct i2c_board_info h1940_i2c_devices[] = {
589         {
590                 I2C_BOARD_INFO("uda1380", 0x1a),
591                 .platform_data = &uda1380_info,
592         },
593 };
594 
595 #define DECLARE_BUTTON(p, k, n, w)      \
596         {                               \
597                 .gpio           = p,    \
598                 .code           = k,    \
599                 .desc           = n,    \
600                 .wakeup         = w,    \
601                 .active_low     = 1,    \
602         }
603 
604 static struct gpio_keys_button h1940_buttons[] = {
605         DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
606         DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
607         DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
608         DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
609         DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
610         DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
611         DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
612         DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
613         DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
614         DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
615         DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
616 };
617 
618 static struct gpio_keys_platform_data h1940_buttons_data = {
619         .buttons        = h1940_buttons,
620         .nbuttons       = ARRAY_SIZE(h1940_buttons),
621 };
622 
623 static struct platform_device h1940_dev_buttons = {
624         .name           = "gpio-keys",
625         .id             = -1,
626         .dev            = {
627                 .platform_data  = &h1940_buttons_data,
628         }
629 };
630 
631 static struct platform_device *h1940_devices[] __initdata = {
632         &h1940_dev_buttons,
633         &s3c_device_ohci,
634         &s3c_device_lcd,
635         &s3c_device_wdt,
636         &s3c_device_i2c0,
637         &s3c_device_iis,
638         &s3c_device_usbgadget,
639         &h1940_device_leds,
640         &h1940_device_bluetooth,
641         &s3c_device_sdi,
642         &s3c_device_rtc,
643         &samsung_device_pwm,
644         &h1940_backlight,
645         &h1940_lcd_powerdev,
646         &s3c_device_adc,
647         &s3c_device_ts,
648         &power_supply,
649         &h1940_battery,
650 };
651 
652 static void __init h1940_map_io(void)
653 {
654         s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
655         s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
656         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
657 
658         /* setup PM */
659 
660 #ifdef CONFIG_PM_H1940
661         memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
662 #endif
663         s3c_pm_init();
664 
665         /* Add latch gpio chip, set latch initial value */
666         h1940_latch_control(0, 0);
667         WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
668 }
669 
670 static void __init h1940_init_time(void)
671 {
672         s3c2410_init_clocks(12000000);
673         samsung_timer_init();
674 }
675 
676 /* H1940 and RX3715 need to reserve this for suspend */
677 static void __init h1940_reserve(void)
678 {
679         memblock_reserve(0x30003000, 0x1000);
680         memblock_reserve(0x30081000, 0x1000);
681 }
682 
683 static void __init h1940_init(void)
684 {
685         u32 tmp;
686 
687         s3c24xx_fb_set_platdata(&h1940_fb_info);
688         s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
689         s3c24xx_udc_set_platdata(&h1940_udc_cfg);
690         s3c24xx_ts_set_platdata(&h1940_ts_cfg);
691         s3c_i2c0_set_platdata(NULL);
692 
693         /* Turn off suspend on both USB ports, and switch the
694          * selectable USB port to USB device mode. */
695 
696         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
697                               S3C2410_MISCCR_USBSUSPND0 |
698                               S3C2410_MISCCR_USBSUSPND1, 0x0);
699 
700         tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
701               | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
702               | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
703         writel(tmp, S3C2410_UPLLCON);
704 
705         gpio_request(S3C2410_GPC(0), "LCD power");
706         gpio_request(S3C2410_GPC(1), "LCD power");
707         gpio_request(S3C2410_GPC(4), "LCD power");
708         gpio_request(S3C2410_GPC(5), "LCD power");
709         gpio_request(S3C2410_GPC(6), "LCD power");
710         gpio_request(H1940_LATCH_LCD_P0, "LCD power");
711         gpio_request(H1940_LATCH_LCD_P1, "LCD power");
712         gpio_request(H1940_LATCH_LCD_P2, "LCD power");
713         gpio_request(H1940_LATCH_LCD_P3, "LCD power");
714         gpio_request(H1940_LATCH_LCD_P4, "LCD power");
715         gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
716         gpio_direction_output(S3C2410_GPC(0), 0);
717         gpio_direction_output(S3C2410_GPC(1), 0);
718         gpio_direction_output(S3C2410_GPC(4), 0);
719         gpio_direction_output(S3C2410_GPC(5), 0);
720         gpio_direction_input(S3C2410_GPC(6));
721         gpio_direction_output(H1940_LATCH_LCD_P0, 0);
722         gpio_direction_output(H1940_LATCH_LCD_P1, 0);
723         gpio_direction_output(H1940_LATCH_LCD_P2, 0);
724         gpio_direction_output(H1940_LATCH_LCD_P3, 0);
725         gpio_direction_output(H1940_LATCH_LCD_P4, 0);
726         gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
727 
728         gpio_request(H1940_LATCH_SD_POWER, "SD power");
729         gpio_direction_output(H1940_LATCH_SD_POWER, 0);
730 
731         pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
732         platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
733 
734         gpio_request(S3C2410_GPA(1), "Red LED blink");
735         gpio_request(S3C2410_GPA(3), "Blue LED blink");
736         gpio_request(S3C2410_GPA(7), "Green LED blink");
737         gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
738         gpio_direction_output(S3C2410_GPA(1), 0);
739         gpio_direction_output(S3C2410_GPA(3), 0);
740         gpio_direction_output(S3C2410_GPA(7), 0);
741         gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
742 
743         i2c_register_board_info(0, h1940_i2c_devices,
744                 ARRAY_SIZE(h1940_i2c_devices));
745 }
746 
747 MACHINE_START(H1940, "IPAQ-H1940")
748         /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
749         .atag_offset    = 0x100,
750         .map_io         = h1940_map_io,
751         .reserve        = h1940_reserve,
752         .init_irq       = s3c2410_init_irq,
753         .init_machine   = h1940_init,
754         .init_time      = h1940_init_time,
755 MACHINE_END
756 

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