1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Copyright (c) 2003-2005 Simtec Electronics
4 // Ben Dooks <ben@simtec.co.uk>
5 //
6 // https://www.handhelds.org/projects/h1940.html
7
8 #include <linux/kernel.h>
9 #include <linux/types.h>
10 #include <linux/interrupt.h>
11 #include <linux/list.h>
12 #include <linux/memblock.h>
13 #include <linux/timer.h>
14 #include <linux/init.h>
15 #include <linux/device.h>
16 #include <linux/serial_core.h>
17 #include <linux/serial_s3c.h>
18 #include <linux/platform_device.h>
19 #include <linux/io.h>
20 #include <linux/gpio.h>
21 #include <linux/gpio/machine.h>
22 #include <linux/input.h>
23 #include <linux/gpio_keys.h>
24 #include <linux/pwm.h>
25 #include <linux/pwm_backlight.h>
26 #include <linux/i2c.h>
27 #include <linux/leds.h>
28 #include <linux/pda_power.h>
29 #include <linux/s3c_adc_battery.h>
30 #include <linux/delay.h>
31
32 #include <video/platform_lcd.h>
33
34 #include <linux/mmc/host.h>
35 #include <linux/export.h>
36
37 #include <asm/irq.h>
38 #include <asm/mach-types.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/irq.h>
42
43 #include <linux/platform_data/i2c-s3c2410.h>
44 #include <linux/platform_data/mmc-s3cmci.h>
45 #include <linux/platform_data/touchscreen-s3c2410.h>
46 #include <linux/platform_data/usb-s3c2410_udc.h>
47
48 #include <sound/uda1380.h>
49
50 #include <linux/platform_data/fb-s3c2410.h>
51 #include "map.h"
52 #include "hardware-s3c24xx.h"
53 #include "regs-clock.h"
54 #include "regs-gpio.h"
55 #include "gpio-samsung.h"
56
57 #include "cpu.h"
58 #include "devs.h"
59 #include "gpio-cfg.h"
60 #include "pm.h"
61
62 #include "s3c24xx.h"
63 #include "h1940.h"
64
65 #define H1940_LATCH ((void __force __iomem *)0xF8000000)
66
67 #define H1940_PA_LATCH S3C2410_CS2
68
69 #define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
70
71 #define S3C24XX_PLL_MDIV_SHIFT (12)
72 #define S3C24XX_PLL_PDIV_SHIFT (4)
73 #define S3C24XX_PLL_SDIV_SHIFT (0)
74
75 static struct map_desc h1940_iodesc[] __initdata = {
76 [0] = {
77 .virtual = (unsigned long)H1940_LATCH,
78 .pfn = __phys_to_pfn(H1940_PA_LATCH),
79 .length = SZ_16K,
80 .type = MT_DEVICE
81 },
82 };
83
84 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
85 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
86 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
87
88 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
89 [0] = {
90 .hwport = 0,
91 .flags = 0,
92 .ucon = 0x3c5,
93 .ulcon = 0x03,
94 .ufcon = 0x51,
95 },
96 [1] = {
97 .hwport = 1,
98 .flags = 0,
99 .ucon = 0x245,
100 .ulcon = 0x03,
101 .ufcon = 0x00,
102 },
103 /* IR port */
104 [2] = {
105 .hwport = 2,
106 .flags = 0,
107 .uart_flags = UPF_CONS_FLOW,
108 .ucon = 0x3c5,
109 .ulcon = 0x43,
110 .ufcon = 0x51,
111 }
112 };
113
114 /* Board control latch control */
115
116 static unsigned int latch_state;
117
h1940_latch_control(unsigned int clear,unsigned int set)118 static void h1940_latch_control(unsigned int clear, unsigned int set)
119 {
120 unsigned long flags;
121
122 local_irq_save(flags);
123
124 latch_state &= ~clear;
125 latch_state |= set;
126
127 __raw_writel(latch_state, H1940_LATCH);
128
129 local_irq_restore(flags);
130 }
131
h1940_gpiolib_to_latch(int offset)132 static inline int h1940_gpiolib_to_latch(int offset)
133 {
134 return 1 << (offset + 16);
135 }
136
h1940_gpiolib_latch_set(struct gpio_chip * chip,unsigned offset,int value)137 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
138 unsigned offset, int value)
139 {
140 int latch_bit = h1940_gpiolib_to_latch(offset);
141
142 h1940_latch_control(value ? 0 : latch_bit,
143 value ? latch_bit : 0);
144 }
145
h1940_gpiolib_latch_output(struct gpio_chip * chip,unsigned offset,int value)146 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
147 unsigned offset, int value)
148 {
149 h1940_gpiolib_latch_set(chip, offset, value);
150 return 0;
151 }
152
h1940_gpiolib_latch_get(struct gpio_chip * chip,unsigned offset)153 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
154 unsigned offset)
155 {
156 return (latch_state >> (offset + 16)) & 1;
157 }
158
159 static struct gpio_chip h1940_latch_gpiochip = {
160 .base = H1940_LATCH_GPIO(0),
161 .owner = THIS_MODULE,
162 .label = "H1940_LATCH",
163 .ngpio = 16,
164 .direction_output = h1940_gpiolib_latch_output,
165 .set = h1940_gpiolib_latch_set,
166 .get = h1940_gpiolib_latch_get,
167 };
168
169 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
170 .vbus_pin = S3C2410_GPG(5),
171 .vbus_pin_inverted = 1,
172 .pullup_pin = H1940_LATCH_USB_DP,
173 };
174
175 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
176 .delay = 10000,
177 .presc = 49,
178 .oversampling_shift = 2,
179 .cfg_gpio = s3c24xx_ts_cfg_gpio,
180 };
181
182 /*
183 * Set lcd on or off
184 */
185 static struct s3c2410fb_display h1940_lcd __initdata = {
186 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
187 S3C2410_LCDCON5_INVVLINE | \
188 S3C2410_LCDCON5_HWSWP,
189
190 .type = S3C2410_LCDCON1_TFT,
191 .width = 240,
192 .height = 320,
193 .pixclock = 260000,
194 .xres = 240,
195 .yres = 320,
196 .bpp = 16,
197 .left_margin = 8,
198 .right_margin = 20,
199 .hsync_len = 4,
200 .upper_margin = 8,
201 .lower_margin = 7,
202 .vsync_len = 1,
203 };
204
205 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
206 .displays = &h1940_lcd,
207 .num_displays = 1,
208 .default_display = 0,
209
210 .lpcsel = 0x02,
211 .gpccon = 0xaa940659,
212 .gpccon_mask = 0xffffc0f0,
213 .gpccon_reg = S3C2410_GPCCON,
214 .gpcup = 0x0000ffff,
215 .gpcup_mask = 0xffffffff,
216 .gpcup_reg = S3C2410_GPCUP,
217 .gpdcon = 0xaa84aaa0,
218 .gpdcon_mask = 0xffffffff,
219 .gpdcon_reg = S3C2410_GPDCON,
220 .gpdup = 0x0000faff,
221 .gpdup_mask = 0xffffffff,
222 .gpdup_reg = S3C2410_GPDUP,
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
300 static struct gpiod_lookup_table h1940_bat_gpio_table = {
301 .dev_id = "s3c-adc-battery",
302 .table = {
303 /* Charge status S3C2410_GPF(3) */
304 GPIO_LOOKUP("GPIOF", 3, "charge-status", GPIO_ACTIVE_LOW),
305 { },
306 },
307 };
308
h1940_bat_init(void)309 static int h1940_bat_init(void)
310 {
311 int ret;
312
313 ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
314 if (ret)
315 return ret;
316 gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
317
318 return 0;
319
320 }
321
h1940_bat_exit(void)322 static void h1940_bat_exit(void)
323 {
324 gpio_free(H1940_LATCH_SM803_ENABLE);
325 }
326
h1940_enable_charger(void)327 static void h1940_enable_charger(void)
328 {
329 gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
330 }
331
h1940_disable_charger(void)332 static void h1940_disable_charger(void)
333 {
334 gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
335 }
336
337 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
338 .init = h1940_bat_init,
339 .exit = h1940_bat_exit,
340 .enable_charger = h1940_enable_charger,
341 .disable_charger = h1940_disable_charger,
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 static DEFINE_SPINLOCK(h1940_blink_spin);
368
h1940_led_blink_set(struct gpio_desc * desc,int state,unsigned long * delay_on,unsigned long * delay_off)369 int h1940_led_blink_set(struct gpio_desc *desc, int state,
370 unsigned long *delay_on, unsigned long *delay_off)
371 {
372 int blink_gpio, check_gpio1, check_gpio2;
373 int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
374
375 switch (gpio) {
376 case H1940_LATCH_LED_GREEN:
377 blink_gpio = S3C2410_GPA(7);
378 check_gpio1 = S3C2410_GPA(1);
379 check_gpio2 = S3C2410_GPA(3);
380 break;
381 case H1940_LATCH_LED_RED:
382 blink_gpio = S3C2410_GPA(1);
383 check_gpio1 = S3C2410_GPA(7);
384 check_gpio2 = S3C2410_GPA(3);
385 break;
386 default:
387 blink_gpio = S3C2410_GPA(3);
388 check_gpio1 = S3C2410_GPA(1);
389 check_gpio2 = S3C2410_GPA(7);
390 break;
391 }
392
393 if (delay_on && delay_off && !*delay_on && !*delay_off)
394 *delay_on = *delay_off = 500;
395
396 spin_lock(&h1940_blink_spin);
397
398 switch (state) {
399 case GPIO_LED_NO_BLINK_LOW:
400 case GPIO_LED_NO_BLINK_HIGH:
401 if (!gpio_get_value(check_gpio1) &&
402 !gpio_get_value(check_gpio2))
403 gpio_set_value(H1940_LATCH_LED_FLASH, 0);
404 gpio_set_value(blink_gpio, 0);
405 if (gpio_is_valid(gpio))
406 gpio_set_value(gpio, state);
407 break;
408 case GPIO_LED_BLINK:
409 if (gpio_is_valid(gpio))
410 gpio_set_value(gpio, 0);
411 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
412 gpio_set_value(blink_gpio, 1);
413 break;
414 }
415
416 spin_unlock(&h1940_blink_spin);
417
418 return 0;
419 }
420 EXPORT_SYMBOL(h1940_led_blink_set);
421
422 static struct gpio_led h1940_leds_desc[] = {
423 {
424 .name = "Green",
425 .default_trigger = "main-battery-full",
426 .gpio = H1940_LATCH_LED_GREEN,
427 .retain_state_suspended = 1,
428 },
429 {
430 .name = "Red",
431 .default_trigger
432 = "main-battery-charging-blink-full-solid",
433 .gpio = H1940_LATCH_LED_RED,
434 .retain_state_suspended = 1,
435 },
436 };
437
438 static struct gpio_led_platform_data h1940_leds_pdata = {
439 .num_leds = ARRAY_SIZE(h1940_leds_desc),
440 .leds = h1940_leds_desc,
441 .gpio_blink_set = h1940_led_blink_set,
442 };
443
444 static struct platform_device h1940_device_leds = {
445 .name = "leds-gpio",
446 .id = -1,
447 .dev = {
448 .platform_data = &h1940_leds_pdata,
449 },
450 };
451
452 static struct platform_device h1940_device_bluetooth = {
453 .name = "h1940-bt",
454 .id = -1,
455 };
456
h1940_set_mmc_power(unsigned char power_mode,unsigned short vdd)457 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
458 {
459 s3c24xx_mci_def_set_power(power_mode, vdd);
460
461 switch (power_mode) {
462 case MMC_POWER_OFF:
463 gpio_set_value(H1940_LATCH_SD_POWER, 0);
464 break;
465 case MMC_POWER_UP:
466 case MMC_POWER_ON:
467 gpio_set_value(H1940_LATCH_SD_POWER, 1);
468 break;
469 default:
470 break;
471 }
472 }
473
474 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
475 .set_power = h1940_set_mmc_power,
476 .ocr_avail = MMC_VDD_32_33,
477 };
478
479 static struct gpiod_lookup_table h1940_mmc_gpio_table = {
480 .dev_id = "s3c2410-sdi",
481 .table = {
482 /* Card detect S3C2410_GPF(5) */
483 GPIO_LOOKUP("GPIOF", 5, "cd", GPIO_ACTIVE_LOW),
484 /* Write protect S3C2410_GPH(8) */
485 GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_LOW),
486 /* bus pins */
487 GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
488 GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
489 GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
490 GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
491 GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
492 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
493 { },
494 },
495 };
496
497 static struct gpiod_lookup_table h1940_audio_gpio_table = {
498 .dev_id = "h1940-audio",
499 .table = {
500 GPIO_LOOKUP("H1940_LATCH",
501 H1940_LATCH_AUDIO_POWER - H1940_LATCH_GPIO(0),
502 "speaker-power", GPIO_ACTIVE_HIGH),
503 GPIO_LOOKUP("GPIOG", 4, "hp", GPIO_ACTIVE_HIGH),
504 { },
505 },
506 };
507
508 static struct platform_device h1940_audio = {
509 .name = "h1940-audio",
510 .id = -1,
511 };
512
513 static struct pwm_lookup h1940_pwm_lookup[] = {
514 PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
515 PWM_POLARITY_NORMAL),
516 };
517
h1940_backlight_init(struct device * dev)518 static int h1940_backlight_init(struct device *dev)
519 {
520 gpio_request(S3C2410_GPB(0), "Backlight");
521
522 gpio_direction_output(S3C2410_GPB(0), 0);
523 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
524 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
525 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
526
527 return 0;
528 }
529
h1940_backlight_notify(struct device * dev,int brightness)530 static int h1940_backlight_notify(struct device *dev, int brightness)
531 {
532 if (!brightness) {
533 gpio_direction_output(S3C2410_GPB(0), 1);
534 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
535 } else {
536 gpio_direction_output(S3C2410_GPB(0), 0);
537 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
538 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
539 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
540 }
541 return brightness;
542 }
543
h1940_backlight_exit(struct device * dev)544 static void h1940_backlight_exit(struct device *dev)
545 {
546 gpio_direction_output(S3C2410_GPB(0), 1);
547 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
548 }
549
550
551 static struct platform_pwm_backlight_data backlight_data = {
552 .max_brightness = 100,
553 .dft_brightness = 50,
554 .init = h1940_backlight_init,
555 .notify = h1940_backlight_notify,
556 .exit = h1940_backlight_exit,
557 };
558
559 static struct platform_device h1940_backlight = {
560 .name = "pwm-backlight",
561 .dev = {
562 .parent = &samsung_device_pwm.dev,
563 .platform_data = &backlight_data,
564 },
565 .id = -1,
566 };
567
h1940_lcd_power_set(struct plat_lcd_data * pd,unsigned int power)568 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
569 unsigned int power)
570 {
571 int value, retries = 100;
572
573 if (!power) {
574 gpio_set_value(S3C2410_GPC(0), 0);
575 /* wait for 3ac */
576 do {
577 value = gpio_get_value(S3C2410_GPC(6));
578 } while (value && retries--);
579
580 gpio_set_value(H1940_LATCH_LCD_P2, 0);
581 gpio_set_value(H1940_LATCH_LCD_P3, 0);
582 gpio_set_value(H1940_LATCH_LCD_P4, 0);
583
584 gpio_direction_output(S3C2410_GPC(1), 0);
585 gpio_direction_output(S3C2410_GPC(4), 0);
586
587 gpio_set_value(H1940_LATCH_LCD_P1, 0);
588 gpio_set_value(H1940_LATCH_LCD_P0, 0);
589
590 gpio_set_value(S3C2410_GPC(5), 0);
591
592 } else {
593 gpio_set_value(H1940_LATCH_LCD_P0, 1);
594 gpio_set_value(H1940_LATCH_LCD_P1, 1);
595
596 gpio_direction_input(S3C2410_GPC(1));
597 gpio_direction_input(S3C2410_GPC(4));
598 mdelay(10);
599 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
600 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
601
602 gpio_set_value(S3C2410_GPC(5), 1);
603 gpio_set_value(S3C2410_GPC(0), 1);
604
605 gpio_set_value(H1940_LATCH_LCD_P3, 1);
606 gpio_set_value(H1940_LATCH_LCD_P2, 1);
607 gpio_set_value(H1940_LATCH_LCD_P4, 1);
608 }
609 }
610
611 static struct plat_lcd_data h1940_lcd_power_data = {
612 .set_power = h1940_lcd_power_set,
613 };
614
615 static struct platform_device h1940_lcd_powerdev = {
616 .name = "platform-lcd",
617 .dev.parent = &s3c_device_lcd.dev,
618 .dev.platform_data = &h1940_lcd_power_data,
619 };
620
621 static struct uda1380_platform_data uda1380_info = {
622 .gpio_power = H1940_LATCH_UDA_POWER,
623 .gpio_reset = S3C2410_GPA(12),
624 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
625 };
626
627 static struct i2c_board_info h1940_i2c_devices[] = {
628 {
629 I2C_BOARD_INFO("uda1380", 0x1a),
630 .platform_data = &uda1380_info,
631 },
632 };
633
634 #define DECLARE_BUTTON(p, k, n, w) \
635 { \
636 .gpio = p, \
637 .code = k, \
638 .desc = n, \
639 .wakeup = w, \
640 .active_low = 1, \
641 }
642
643 static struct gpio_keys_button h1940_buttons[] = {
644 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
645 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
646 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
647 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
648 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
649 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
650 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
651 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
652 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
653 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
654 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
655 };
656
657 static struct gpio_keys_platform_data h1940_buttons_data = {
658 .buttons = h1940_buttons,
659 .nbuttons = ARRAY_SIZE(h1940_buttons),
660 };
661
662 static struct platform_device h1940_dev_buttons = {
663 .name = "gpio-keys",
664 .id = -1,
665 .dev = {
666 .platform_data = &h1940_buttons_data,
667 }
668 };
669
670 static struct platform_device *h1940_devices[] __initdata = {
671 &h1940_dev_buttons,
672 &s3c_device_ohci,
673 &s3c_device_lcd,
674 &s3c_device_wdt,
675 &s3c_device_i2c0,
676 &s3c_device_iis,
677 &s3c_device_usbgadget,
678 &h1940_device_leds,
679 &h1940_device_bluetooth,
680 &s3c_device_sdi,
681 &s3c_device_rtc,
682 &samsung_device_pwm,
683 &h1940_backlight,
684 &h1940_lcd_powerdev,
685 &s3c_device_adc,
686 &s3c_device_ts,
687 &power_supply,
688 &h1940_battery,
689 &h1940_audio,
690 };
691
h1940_map_io(void)692 static void __init h1940_map_io(void)
693 {
694 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
695 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
696 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
697
698 /* setup PM */
699
700 #ifdef CONFIG_PM_H1940
701 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
702 #endif
703 s3c_pm_init();
704
705 /* Add latch gpio chip, set latch initial value */
706 h1940_latch_control(0, 0);
707 WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
708 }
709
h1940_init_time(void)710 static void __init h1940_init_time(void)
711 {
712 s3c2410_init_clocks(12000000);
713 s3c24xx_timer_init();
714 }
715
716 /* H1940 and RX3715 need to reserve this for suspend */
h1940_reserve(void)717 static void __init h1940_reserve(void)
718 {
719 memblock_reserve(0x30003000, 0x1000);
720 memblock_reserve(0x30081000, 0x1000);
721 }
722
h1940_init(void)723 static void __init h1940_init(void)
724 {
725 u32 tmp;
726
727 s3c24xx_fb_set_platdata(&h1940_fb_info);
728 gpiod_add_lookup_table(&h1940_mmc_gpio_table);
729 gpiod_add_lookup_table(&h1940_audio_gpio_table);
730 gpiod_add_lookup_table(&h1940_bat_gpio_table);
731 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
732 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
733 S3C_GPIO_PULL_NONE);
734 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
735 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
736 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
737 s3c_i2c0_set_platdata(NULL);
738
739 /* Turn off suspend on both USB ports, and switch the
740 * selectable USB port to USB device mode. */
741
742 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
743 S3C2410_MISCCR_USBSUSPND0 |
744 S3C2410_MISCCR_USBSUSPND1, 0x0);
745
746 tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
747 | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
748 | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
749 writel(tmp, S3C2410_UPLLCON);
750
751 gpio_request(S3C2410_GPC(0), "LCD power");
752 gpio_request(S3C2410_GPC(1), "LCD power");
753 gpio_request(S3C2410_GPC(4), "LCD power");
754 gpio_request(S3C2410_GPC(5), "LCD power");
755 gpio_request(S3C2410_GPC(6), "LCD power");
756 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
757 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
758 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
759 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
760 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
761 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
762 gpio_direction_output(S3C2410_GPC(0), 0);
763 gpio_direction_output(S3C2410_GPC(1), 0);
764 gpio_direction_output(S3C2410_GPC(4), 0);
765 gpio_direction_output(S3C2410_GPC(5), 0);
766 gpio_direction_input(S3C2410_GPC(6));
767 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
768 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
769 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
770 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
771 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
772 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
773
774 gpio_request(H1940_LATCH_SD_POWER, "SD power");
775 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
776
777 pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
778 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
779
780 gpio_request(S3C2410_GPA(1), "Red LED blink");
781 gpio_request(S3C2410_GPA(3), "Blue LED blink");
782 gpio_request(S3C2410_GPA(7), "Green LED blink");
783 gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
784 gpio_direction_output(S3C2410_GPA(1), 0);
785 gpio_direction_output(S3C2410_GPA(3), 0);
786 gpio_direction_output(S3C2410_GPA(7), 0);
787 gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
788
789 i2c_register_board_info(0, h1940_i2c_devices,
790 ARRAY_SIZE(h1940_i2c_devices));
791 }
792
793 MACHINE_START(H1940, "IPAQ-H1940")
794 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
795 .atag_offset = 0x100,
796 .map_io = h1940_map_io,
797 .reserve = h1940_reserve,
798 .init_irq = s3c2410_init_irq,
799 .init_machine = h1940_init,
800 .init_time = h1940_init_time,
801 MACHINE_END
802