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_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/irq.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
45
46 #include <linux/platform_data/i2c-s3c2410.h>
47 #include <linux/platform_data/mmc-s3cmci.h>
48 #include <linux/platform_data/touchscreen-s3c2410.h>
49 #include <linux/platform_data/usb-s3c2410_udc.h>
50
51 #include <sound/uda1380.h>
52
53 #include <mach/fb.h>
54 #include <mach/hardware.h>
55 #include <mach/regs-clock.h>
56 #include <mach/regs-gpio.h>
57 #include <mach/regs-lcd.h>
58 #include <mach/gpio-samsung.h>
59
60 #include <plat/cpu.h>
61 #include <plat/devs.h>
62 #include <plat/gpio-cfg.h>
63 #include <plat/pm.h>
64 #include <plat/samsung-time.h>
65
66 #include "common.h"
67 #include "h1940.h"
68
69 #define H1940_LATCH ((void __force __iomem *)0xF8000000)
70
71 #define H1940_PA_LATCH S3C2410_CS2
72
73 #define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
74
75 #define S3C24XX_PLL_MDIV_SHIFT (12)
76 #define S3C24XX_PLL_PDIV_SHIFT (4)
77 #define S3C24XX_PLL_SDIV_SHIFT (0)
78
79 static struct map_desc h1940_iodesc[] __initdata = {
80 [0] = {
81 .virtual = (unsigned long)H1940_LATCH,
82 .pfn = __phys_to_pfn(H1940_PA_LATCH),
83 .length = SZ_16K,
84 .type = MT_DEVICE
85 },
86 };
87
88 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
89 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
90 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
91
92 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
93 [0] = {
94 .hwport = 0,
95 .flags = 0,
96 .ucon = 0x3c5,
97 .ulcon = 0x03,
98 .ufcon = 0x51,
99 },
100 [1] = {
101 .hwport = 1,
102 .flags = 0,
103 .ucon = 0x245,
104 .ulcon = 0x03,
105 .ufcon = 0x00,
106 },
107 /* IR port */
108 [2] = {
109 .hwport = 2,
110 .flags = 0,
111 .uart_flags = UPF_CONS_FLOW,
112 .ucon = 0x3c5,
113 .ulcon = 0x43,
114 .ufcon = 0x51,
115 }
116 };
117
118 /* Board control latch control */
119
120 static unsigned int latch_state;
121
h1940_latch_control(unsigned int clear,unsigned int set)122 static void h1940_latch_control(unsigned int clear, unsigned int set)
123 {
124 unsigned long flags;
125
126 local_irq_save(flags);
127
128 latch_state &= ~clear;
129 latch_state |= set;
130
131 __raw_writel(latch_state, H1940_LATCH);
132
133 local_irq_restore(flags);
134 }
135
h1940_gpiolib_to_latch(int offset)136 static inline int h1940_gpiolib_to_latch(int offset)
137 {
138 return 1 << (offset + 16);
139 }
140
h1940_gpiolib_latch_set(struct gpio_chip * chip,unsigned offset,int value)141 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
142 unsigned offset, int value)
143 {
144 int latch_bit = h1940_gpiolib_to_latch(offset);
145
146 h1940_latch_control(value ? 0 : latch_bit,
147 value ? latch_bit : 0);
148 }
149
h1940_gpiolib_latch_output(struct gpio_chip * chip,unsigned offset,int value)150 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
151 unsigned offset, int value)
152 {
153 h1940_gpiolib_latch_set(chip, offset, value);
154 return 0;
155 }
156
h1940_gpiolib_latch_get(struct gpio_chip * chip,unsigned offset)157 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
158 unsigned offset)
159 {
160 return (latch_state >> (offset + 16)) & 1;
161 }
162
163 static struct gpio_chip h1940_latch_gpiochip = {
164 .base = H1940_LATCH_GPIO(0),
165 .owner = THIS_MODULE,
166 .label = "H1940_LATCH",
167 .ngpio = 16,
168 .direction_output = h1940_gpiolib_latch_output,
169 .set = h1940_gpiolib_latch_set,
170 .get = h1940_gpiolib_latch_get,
171 };
172
173 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
174 .vbus_pin = S3C2410_GPG(5),
175 .vbus_pin_inverted = 1,
176 .pullup_pin = H1940_LATCH_USB_DP,
177 };
178
179 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
180 .delay = 10000,
181 .presc = 49,
182 .oversampling_shift = 2,
183 .cfg_gpio = s3c24xx_ts_cfg_gpio,
184 };
185
186 /**
187 * Set lcd on or off
188 **/
189 static struct s3c2410fb_display h1940_lcd __initdata = {
190 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
191 S3C2410_LCDCON5_INVVLINE | \
192 S3C2410_LCDCON5_HWSWP,
193
194 .type = S3C2410_LCDCON1_TFT,
195 .width = 240,
196 .height = 320,
197 .pixclock = 260000,
198 .xres = 240,
199 .yres = 320,
200 .bpp = 16,
201 .left_margin = 8,
202 .right_margin = 20,
203 .hsync_len = 4,
204 .upper_margin = 8,
205 .lower_margin = 7,
206 .vsync_len = 1,
207 };
208
209 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
210 .displays = &h1940_lcd,
211 .num_displays = 1,
212 .default_display = 0,
213
214 .lpcsel = 0x02,
215 .gpccon = 0xaa940659,
216 .gpccon_mask = 0xffffc0f0,
217 .gpcup = 0x0000ffff,
218 .gpcup_mask = 0xffffffff,
219 .gpdcon = 0xaa84aaa0,
220 .gpdcon_mask = 0xffffffff,
221 .gpdup = 0x0000faff,
222 .gpdup_mask = 0xffffffff,
223 };
224
power_supply_init(struct device * dev)225 static int power_supply_init(struct device *dev)
226 {
227 return gpio_request(S3C2410_GPF(2), "cable plugged");
228 }
229
h1940_is_ac_online(void)230 static int h1940_is_ac_online(void)
231 {
232 return !gpio_get_value(S3C2410_GPF(2));
233 }
234
power_supply_exit(struct device * dev)235 static void power_supply_exit(struct device *dev)
236 {
237 gpio_free(S3C2410_GPF(2));
238 }
239
240 static char *h1940_supplicants[] = {
241 "main-battery",
242 "backup-battery",
243 };
244
245 static struct pda_power_pdata power_supply_info = {
246 .init = power_supply_init,
247 .is_ac_online = h1940_is_ac_online,
248 .exit = power_supply_exit,
249 .supplied_to = h1940_supplicants,
250 .num_supplicants = ARRAY_SIZE(h1940_supplicants),
251 };
252
253 static struct resource power_supply_resources[] = {
254 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
255 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
256 };
257
258 static struct platform_device power_supply = {
259 .name = "pda-power",
260 .id = -1,
261 .dev = {
262 .platform_data =
263 &power_supply_info,
264 },
265 .resource = power_supply_resources,
266 .num_resources = ARRAY_SIZE(power_supply_resources),
267 };
268
269 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
270 { .volt = 4070, .cur = 162, .level = 100},
271 { .volt = 4040, .cur = 165, .level = 95},
272 { .volt = 4016, .cur = 164, .level = 90},
273 { .volt = 3996, .cur = 166, .level = 85},
274 { .volt = 3971, .cur = 168, .level = 80},
275 { .volt = 3951, .cur = 168, .level = 75},
276 { .volt = 3931, .cur = 170, .level = 70},
277 { .volt = 3903, .cur = 172, .level = 65},
278 { .volt = 3886, .cur = 172, .level = 60},
279 { .volt = 3858, .cur = 176, .level = 55},
280 { .volt = 3842, .cur = 176, .level = 50},
281 { .volt = 3818, .cur = 176, .level = 45},
282 { .volt = 3789, .cur = 180, .level = 40},
283 { .volt = 3769, .cur = 180, .level = 35},
284 { .volt = 3749, .cur = 184, .level = 30},
285 { .volt = 3732, .cur = 184, .level = 25},
286 { .volt = 3716, .cur = 184, .level = 20},
287 { .volt = 3708, .cur = 184, .level = 15},
288 { .volt = 3716, .cur = 96, .level = 10},
289 { .volt = 3700, .cur = 96, .level = 5},
290 { .volt = 3684, .cur = 96, .level = 0},
291 };
292
293 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
294 { .volt = 4130, .cur = 0, .level = 100},
295 { .volt = 3982, .cur = 0, .level = 50},
296 { .volt = 3854, .cur = 0, .level = 10},
297 { .volt = 3841, .cur = 0, .level = 0},
298 };
299
h1940_bat_init(void)300 static int h1940_bat_init(void)
301 {
302 int ret;
303
304 ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
305 if (ret)
306 return ret;
307 gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
308
309 return 0;
310
311 }
312
h1940_bat_exit(void)313 static void h1940_bat_exit(void)
314 {
315 gpio_free(H1940_LATCH_SM803_ENABLE);
316 }
317
h1940_enable_charger(void)318 static void h1940_enable_charger(void)
319 {
320 gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
321 }
322
h1940_disable_charger(void)323 static void h1940_disable_charger(void)
324 {
325 gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
326 }
327
328 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
329 .init = h1940_bat_init,
330 .exit = h1940_bat_exit,
331 .enable_charger = h1940_enable_charger,
332 .disable_charger = h1940_disable_charger,
333 .gpio_charge_finished = S3C2410_GPF(3),
334 .gpio_inverted = 1,
335 .lut_noac = bat_lut_noac,
336 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
337 .lut_acin = bat_lut_acin,
338 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
339 .volt_channel = 0,
340 .current_channel = 1,
341 .volt_mult = 4056,
342 .current_mult = 1893,
343 .internal_impedance = 200,
344 .backup_volt_channel = 3,
345 /* TODO Check backup volt multiplier */
346 .backup_volt_mult = 4056,
347 .backup_volt_min = 0,
348 .backup_volt_max = 4149288
349 };
350
351 static struct platform_device h1940_battery = {
352 .name = "s3c-adc-battery",
353 .id = -1,
354 .dev = {
355 .parent = &s3c_device_adc.dev,
356 .platform_data = &h1940_bat_cfg,
357 },
358 };
359
360 static DEFINE_SPINLOCK(h1940_blink_spin);
361
h1940_led_blink_set(unsigned gpio,int state,unsigned long * delay_on,unsigned long * delay_off)362 int h1940_led_blink_set(unsigned gpio, int state,
363 unsigned long *delay_on, unsigned long *delay_off)
364 {
365 int blink_gpio, check_gpio1, check_gpio2;
366
367 switch (gpio) {
368 case H1940_LATCH_LED_GREEN:
369 blink_gpio = S3C2410_GPA(7);
370 check_gpio1 = S3C2410_GPA(1);
371 check_gpio2 = S3C2410_GPA(3);
372 break;
373 case H1940_LATCH_LED_RED:
374 blink_gpio = S3C2410_GPA(1);
375 check_gpio1 = S3C2410_GPA(7);
376 check_gpio2 = S3C2410_GPA(3);
377 break;
378 default:
379 blink_gpio = S3C2410_GPA(3);
380 check_gpio1 = S3C2410_GPA(1);
381 check_gpio2 = S3C2410_GPA(7);
382 break;
383 }
384
385 if (delay_on && delay_off && !*delay_on && !*delay_off)
386 *delay_on = *delay_off = 500;
387
388 spin_lock(&h1940_blink_spin);
389
390 switch (state) {
391 case GPIO_LED_NO_BLINK_LOW:
392 case GPIO_LED_NO_BLINK_HIGH:
393 if (!gpio_get_value(check_gpio1) &&
394 !gpio_get_value(check_gpio2))
395 gpio_set_value(H1940_LATCH_LED_FLASH, 0);
396 gpio_set_value(blink_gpio, 0);
397 if (gpio_is_valid(gpio))
398 gpio_set_value(gpio, state);
399 break;
400 case GPIO_LED_BLINK:
401 if (gpio_is_valid(gpio))
402 gpio_set_value(gpio, 0);
403 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
404 gpio_set_value(blink_gpio, 1);
405 break;
406 }
407
408 spin_unlock(&h1940_blink_spin);
409
410 return 0;
411 }
412 EXPORT_SYMBOL(h1940_led_blink_set);
413
414 static struct gpio_led h1940_leds_desc[] = {
415 {
416 .name = "Green",
417 .default_trigger = "main-battery-full",
418 .gpio = H1940_LATCH_LED_GREEN,
419 .retain_state_suspended = 1,
420 },
421 {
422 .name = "Red",
423 .default_trigger
424 = "main-battery-charging-blink-full-solid",
425 .gpio = H1940_LATCH_LED_RED,
426 .retain_state_suspended = 1,
427 },
428 };
429
430 static struct gpio_led_platform_data h1940_leds_pdata = {
431 .num_leds = ARRAY_SIZE(h1940_leds_desc),
432 .leds = h1940_leds_desc,
433 .gpio_blink_set = h1940_led_blink_set,
434 };
435
436 static struct platform_device h1940_device_leds = {
437 .name = "leds-gpio",
438 .id = -1,
439 .dev = {
440 .platform_data = &h1940_leds_pdata,
441 },
442 };
443
444 static struct platform_device h1940_device_bluetooth = {
445 .name = "h1940-bt",
446 .id = -1,
447 };
448
h1940_set_mmc_power(unsigned char power_mode,unsigned short vdd)449 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
450 {
451 switch (power_mode) {
452 case MMC_POWER_OFF:
453 gpio_set_value(H1940_LATCH_SD_POWER, 0);
454 break;
455 case MMC_POWER_UP:
456 case MMC_POWER_ON:
457 gpio_set_value(H1940_LATCH_SD_POWER, 1);
458 break;
459 default:
460 break;
461 }
462 }
463
464 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
465 .gpio_detect = S3C2410_GPF(5),
466 .gpio_wprotect = S3C2410_GPH(8),
467 .set_power = h1940_set_mmc_power,
468 .ocr_avail = MMC_VDD_32_33,
469 };
470
h1940_backlight_init(struct device * dev)471 static int h1940_backlight_init(struct device *dev)
472 {
473 gpio_request(S3C2410_GPB(0), "Backlight");
474
475 gpio_direction_output(S3C2410_GPB(0), 0);
476 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
477 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
478 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
479
480 return 0;
481 }
482
h1940_backlight_notify(struct device * dev,int brightness)483 static int h1940_backlight_notify(struct device *dev, int brightness)
484 {
485 if (!brightness) {
486 gpio_direction_output(S3C2410_GPB(0), 1);
487 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
488 } else {
489 gpio_direction_output(S3C2410_GPB(0), 0);
490 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
491 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
492 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
493 }
494 return brightness;
495 }
496
h1940_backlight_exit(struct device * dev)497 static void h1940_backlight_exit(struct device *dev)
498 {
499 gpio_direction_output(S3C2410_GPB(0), 1);
500 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
501 }
502
503
504 static struct platform_pwm_backlight_data backlight_data = {
505 .pwm_id = 0,
506 .max_brightness = 100,
507 .dft_brightness = 50,
508 /* tcnt = 0x31 */
509 .pwm_period_ns = 36296,
510 .enable_gpio = -1,
511 .init = h1940_backlight_init,
512 .notify = h1940_backlight_notify,
513 .exit = h1940_backlight_exit,
514 };
515
516 static struct platform_device h1940_backlight = {
517 .name = "pwm-backlight",
518 .dev = {
519 .parent = &samsung_device_pwm.dev,
520 .platform_data = &backlight_data,
521 },
522 .id = -1,
523 };
524
h1940_lcd_power_set(struct plat_lcd_data * pd,unsigned int power)525 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
526 unsigned int power)
527 {
528 int value, retries = 100;
529
530 if (!power) {
531 gpio_set_value(S3C2410_GPC(0), 0);
532 /* wait for 3ac */
533 do {
534 value = gpio_get_value(S3C2410_GPC(6));
535 } while (value && retries--);
536
537 gpio_set_value(H1940_LATCH_LCD_P2, 0);
538 gpio_set_value(H1940_LATCH_LCD_P3, 0);
539 gpio_set_value(H1940_LATCH_LCD_P4, 0);
540
541 gpio_direction_output(S3C2410_GPC(1), 0);
542 gpio_direction_output(S3C2410_GPC(4), 0);
543
544 gpio_set_value(H1940_LATCH_LCD_P1, 0);
545 gpio_set_value(H1940_LATCH_LCD_P0, 0);
546
547 gpio_set_value(S3C2410_GPC(5), 0);
548
549 } else {
550 gpio_set_value(H1940_LATCH_LCD_P0, 1);
551 gpio_set_value(H1940_LATCH_LCD_P1, 1);
552
553 gpio_direction_input(S3C2410_GPC(1));
554 gpio_direction_input(S3C2410_GPC(4));
555 mdelay(10);
556 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
557 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
558
559 gpio_set_value(S3C2410_GPC(5), 1);
560 gpio_set_value(S3C2410_GPC(0), 1);
561
562 gpio_set_value(H1940_LATCH_LCD_P3, 1);
563 gpio_set_value(H1940_LATCH_LCD_P2, 1);
564 gpio_set_value(H1940_LATCH_LCD_P4, 1);
565 }
566 }
567
568 static struct plat_lcd_data h1940_lcd_power_data = {
569 .set_power = h1940_lcd_power_set,
570 };
571
572 static struct platform_device h1940_lcd_powerdev = {
573 .name = "platform-lcd",
574 .dev.parent = &s3c_device_lcd.dev,
575 .dev.platform_data = &h1940_lcd_power_data,
576 };
577
578 static struct uda1380_platform_data uda1380_info = {
579 .gpio_power = H1940_LATCH_UDA_POWER,
580 .gpio_reset = S3C2410_GPA(12),
581 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
582 };
583
584 static struct i2c_board_info h1940_i2c_devices[] = {
585 {
586 I2C_BOARD_INFO("uda1380", 0x1a),
587 .platform_data = &uda1380_info,
588 },
589 };
590
591 #define DECLARE_BUTTON(p, k, n, w) \
592 { \
593 .gpio = p, \
594 .code = k, \
595 .desc = n, \
596 .wakeup = w, \
597 .active_low = 1, \
598 }
599
600 static struct gpio_keys_button h1940_buttons[] = {
601 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
602 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
603 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
604 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
605 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
606 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
607 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
608 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
609 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
610 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
611 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
612 };
613
614 static struct gpio_keys_platform_data h1940_buttons_data = {
615 .buttons = h1940_buttons,
616 .nbuttons = ARRAY_SIZE(h1940_buttons),
617 };
618
619 static struct platform_device h1940_dev_buttons = {
620 .name = "gpio-keys",
621 .id = -1,
622 .dev = {
623 .platform_data = &h1940_buttons_data,
624 }
625 };
626
627 static struct platform_device *h1940_devices[] __initdata = {
628 &h1940_dev_buttons,
629 &s3c_device_ohci,
630 &s3c_device_lcd,
631 &s3c_device_wdt,
632 &s3c_device_i2c0,
633 &s3c_device_iis,
634 &s3c_device_usbgadget,
635 &h1940_device_leds,
636 &h1940_device_bluetooth,
637 &s3c_device_sdi,
638 &s3c_device_rtc,
639 &samsung_device_pwm,
640 &h1940_backlight,
641 &h1940_lcd_powerdev,
642 &s3c_device_adc,
643 &s3c_device_ts,
644 &power_supply,
645 &h1940_battery,
646 };
647
h1940_map_io(void)648 static void __init h1940_map_io(void)
649 {
650 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
651 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
652 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
653
654 /* setup PM */
655
656 #ifdef CONFIG_PM_H1940
657 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
658 #endif
659 s3c_pm_init();
660
661 /* Add latch gpio chip, set latch initial value */
662 h1940_latch_control(0, 0);
663 WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
664 }
665
h1940_init_time(void)666 static void __init h1940_init_time(void)
667 {
668 s3c2410_init_clocks(12000000);
669 samsung_timer_init();
670 }
671
672 /* H1940 and RX3715 need to reserve this for suspend */
h1940_reserve(void)673 static void __init h1940_reserve(void)
674 {
675 memblock_reserve(0x30003000, 0x1000);
676 memblock_reserve(0x30081000, 0x1000);
677 }
678
h1940_init(void)679 static void __init h1940_init(void)
680 {
681 u32 tmp;
682
683 s3c24xx_fb_set_platdata(&h1940_fb_info);
684 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
685 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
686 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
687 s3c_i2c0_set_platdata(NULL);
688
689 /* Turn off suspend on both USB ports, and switch the
690 * selectable USB port to USB device mode. */
691
692 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
693 S3C2410_MISCCR_USBSUSPND0 |
694 S3C2410_MISCCR_USBSUSPND1, 0x0);
695
696 tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
697 | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
698 | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
699 writel(tmp, S3C2410_UPLLCON);
700
701 gpio_request(S3C2410_GPC(0), "LCD power");
702 gpio_request(S3C2410_GPC(1), "LCD power");
703 gpio_request(S3C2410_GPC(4), "LCD power");
704 gpio_request(S3C2410_GPC(5), "LCD power");
705 gpio_request(S3C2410_GPC(6), "LCD power");
706 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
707 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
708 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
709 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
710 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
711 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
712 gpio_direction_output(S3C2410_GPC(0), 0);
713 gpio_direction_output(S3C2410_GPC(1), 0);
714 gpio_direction_output(S3C2410_GPC(4), 0);
715 gpio_direction_output(S3C2410_GPC(5), 0);
716 gpio_direction_input(S3C2410_GPC(6));
717 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
718 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
719 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
720 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
721 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
722 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
723
724 gpio_request(H1940_LATCH_SD_POWER, "SD power");
725 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
726
727 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
728
729 gpio_request(S3C2410_GPA(1), "Red LED blink");
730 gpio_request(S3C2410_GPA(3), "Blue LED blink");
731 gpio_request(S3C2410_GPA(7), "Green LED blink");
732 gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
733 gpio_direction_output(S3C2410_GPA(1), 0);
734 gpio_direction_output(S3C2410_GPA(3), 0);
735 gpio_direction_output(S3C2410_GPA(7), 0);
736 gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
737
738 i2c_register_board_info(0, h1940_i2c_devices,
739 ARRAY_SIZE(h1940_i2c_devices));
740 }
741
742 MACHINE_START(H1940, "IPAQ-H1940")
743 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
744 .atag_offset = 0x100,
745 .map_io = h1940_map_io,
746 .reserve = h1940_reserve,
747 .init_irq = s3c2410_init_irq,
748 .init_machine = h1940_init,
749 .init_time = h1940_init_time,
750 MACHINE_END
751