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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
75static 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
88static 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
116static unsigned int latch_state;
117
118static 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
132static inline int h1940_gpiolib_to_latch(int offset)
133{
134 return 1 << (offset + 16);
135}
136
137static 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
146static 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
153static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
154 unsigned offset)
155{
156 return (latch_state >> (offset + 16)) & 1;
157}
158
159static 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
169static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
170};
171
172static struct gpiod_lookup_table h1940_udc_gpio_table = {
173 .dev_id = "s3c2410-usbgadget",
174 .table = {
175 GPIO_LOOKUP("GPIOG", 5, "vbus", GPIO_ACTIVE_LOW),
176 GPIO_LOOKUP("H1940_LATCH", 7, "pullup", GPIO_ACTIVE_HIGH),
177 { },
178 },
179};
180
181static 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 */
191static 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
211static 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 .gpccon_reg = S3C2410_GPCCON,
220 .gpcup = 0x0000ffff,
221 .gpcup_mask = 0xffffffff,
222 .gpcup_reg = S3C2410_GPCUP,
223 .gpdcon = 0xaa84aaa0,
224 .gpdcon_mask = 0xffffffff,
225 .gpdcon_reg = S3C2410_GPDCON,
226 .gpdup = 0x0000faff,
227 .gpdup_mask = 0xffffffff,
228 .gpdup_reg = S3C2410_GPDUP,
229};
230
231static int power_supply_init(struct device *dev)
232{
233 return gpio_request(S3C2410_GPF(2), "cable plugged");
234}
235
236static int h1940_is_ac_online(void)
237{
238 return !gpio_get_value(S3C2410_GPF(2));
239}
240
241static void power_supply_exit(struct device *dev)
242{
243 gpio_free(S3C2410_GPF(2));
244}
245
246static char *h1940_supplicants[] = {
247 "main-battery",
248 "backup-battery",
249};
250
251static struct pda_power_pdata power_supply_info = {
252 .init = power_supply_init,
253 .is_ac_online = h1940_is_ac_online,
254 .exit = power_supply_exit,
255 .supplied_to = h1940_supplicants,
256 .num_supplicants = ARRAY_SIZE(h1940_supplicants),
257};
258
259static struct resource power_supply_resources[] = {
260 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
261 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
262};
263
264static struct platform_device power_supply = {
265 .name = "pda-power",
266 .id = -1,
267 .dev = {
268 .platform_data =
269 &power_supply_info,
270 },
271 .resource = power_supply_resources,
272 .num_resources = ARRAY_SIZE(power_supply_resources),
273};
274
275static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
276 { .volt = 4070, .cur = 162, .level = 100},
277 { .volt = 4040, .cur = 165, .level = 95},
278 { .volt = 4016, .cur = 164, .level = 90},
279 { .volt = 3996, .cur = 166, .level = 85},
280 { .volt = 3971, .cur = 168, .level = 80},
281 { .volt = 3951, .cur = 168, .level = 75},
282 { .volt = 3931, .cur = 170, .level = 70},
283 { .volt = 3903, .cur = 172, .level = 65},
284 { .volt = 3886, .cur = 172, .level = 60},
285 { .volt = 3858, .cur = 176, .level = 55},
286 { .volt = 3842, .cur = 176, .level = 50},
287 { .volt = 3818, .cur = 176, .level = 45},
288 { .volt = 3789, .cur = 180, .level = 40},
289 { .volt = 3769, .cur = 180, .level = 35},
290 { .volt = 3749, .cur = 184, .level = 30},
291 { .volt = 3732, .cur = 184, .level = 25},
292 { .volt = 3716, .cur = 184, .level = 20},
293 { .volt = 3708, .cur = 184, .level = 15},
294 { .volt = 3716, .cur = 96, .level = 10},
295 { .volt = 3700, .cur = 96, .level = 5},
296 { .volt = 3684, .cur = 96, .level = 0},
297};
298
299static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
300 { .volt = 4130, .cur = 0, .level = 100},
301 { .volt = 3982, .cur = 0, .level = 50},
302 { .volt = 3854, .cur = 0, .level = 10},
303 { .volt = 3841, .cur = 0, .level = 0},
304};
305
306static struct gpiod_lookup_table h1940_bat_gpio_table = {
307 .dev_id = "s3c-adc-battery",
308 .table = {
309 /* Charge status S3C2410_GPF(3) */
310 GPIO_LOOKUP("GPIOF", 3, "charge-status", GPIO_ACTIVE_LOW),
311 { },
312 },
313};
314
315static int h1940_bat_init(void)
316{
317 int ret;
318
319 ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
320 if (ret)
321 return ret;
322 gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
323
324 return 0;
325
326}
327
328static void h1940_bat_exit(void)
329{
330 gpio_free(H1940_LATCH_SM803_ENABLE);
331}
332
333static void h1940_enable_charger(void)
334{
335 gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
336}
337
338static void h1940_disable_charger(void)
339{
340 gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
341}
342
343static struct s3c_adc_bat_pdata h1940_bat_cfg = {
344 .init = h1940_bat_init,
345 .exit = h1940_bat_exit,
346 .enable_charger = h1940_enable_charger,
347 .disable_charger = h1940_disable_charger,
348 .lut_noac = bat_lut_noac,
349 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
350 .lut_acin = bat_lut_acin,
351 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
352 .volt_channel = 0,
353 .current_channel = 1,
354 .volt_mult = 4056,
355 .current_mult = 1893,
356 .internal_impedance = 200,
357 .backup_volt_channel = 3,
358 /* TODO Check backup volt multiplier */
359 .backup_volt_mult = 4056,
360 .backup_volt_min = 0,
361 .backup_volt_max = 4149288
362};
363
364static struct platform_device h1940_battery = {
365 .name = "s3c-adc-battery",
366 .id = -1,
367 .dev = {
368 .parent = &s3c_device_adc.dev,
369 .platform_data = &h1940_bat_cfg,
370 },
371};
372
373static DEFINE_SPINLOCK(h1940_blink_spin);
374
375int h1940_led_blink_set(struct gpio_desc *desc, int state,
376 unsigned long *delay_on, unsigned long *delay_off)
377{
378 int blink_gpio, check_gpio1, check_gpio2;
379 int gpio = desc ? desc_to_gpio(desc) : -EINVAL;
380
381 switch (gpio) {
382 case H1940_LATCH_LED_GREEN:
383 blink_gpio = S3C2410_GPA(7);
384 check_gpio1 = S3C2410_GPA(1);
385 check_gpio2 = S3C2410_GPA(3);
386 break;
387 case H1940_LATCH_LED_RED:
388 blink_gpio = S3C2410_GPA(1);
389 check_gpio1 = S3C2410_GPA(7);
390 check_gpio2 = S3C2410_GPA(3);
391 break;
392 default:
393 blink_gpio = S3C2410_GPA(3);
394 check_gpio1 = S3C2410_GPA(1);
395 check_gpio2 = S3C2410_GPA(7);
396 break;
397 }
398
399 if (delay_on && delay_off && !*delay_on && !*delay_off)
400 *delay_on = *delay_off = 500;
401
402 spin_lock(&h1940_blink_spin);
403
404 switch (state) {
405 case GPIO_LED_NO_BLINK_LOW:
406 case GPIO_LED_NO_BLINK_HIGH:
407 if (!gpio_get_value(check_gpio1) &&
408 !gpio_get_value(check_gpio2))
409 gpio_set_value(H1940_LATCH_LED_FLASH, 0);
410 gpio_set_value(blink_gpio, 0);
411 if (gpio_is_valid(gpio))
412 gpio_set_value(gpio, state);
413 break;
414 case GPIO_LED_BLINK:
415 if (gpio_is_valid(gpio))
416 gpio_set_value(gpio, 0);
417 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
418 gpio_set_value(blink_gpio, 1);
419 break;
420 }
421
422 spin_unlock(&h1940_blink_spin);
423
424 return 0;
425}
426EXPORT_SYMBOL(h1940_led_blink_set);
427
428static struct gpio_led h1940_leds_desc[] = {
429 {
430 .name = "Green",
431 .default_trigger = "main-battery-full",
432 .gpio = H1940_LATCH_LED_GREEN,
433 .retain_state_suspended = 1,
434 },
435 {
436 .name = "Red",
437 .default_trigger
438 = "main-battery-charging-blink-full-solid",
439 .gpio = H1940_LATCH_LED_RED,
440 .retain_state_suspended = 1,
441 },
442};
443
444static struct gpio_led_platform_data h1940_leds_pdata = {
445 .num_leds = ARRAY_SIZE(h1940_leds_desc),
446 .leds = h1940_leds_desc,
447 .gpio_blink_set = h1940_led_blink_set,
448};
449
450static struct platform_device h1940_device_leds = {
451 .name = "leds-gpio",
452 .id = -1,
453 .dev = {
454 .platform_data = &h1940_leds_pdata,
455 },
456};
457
458static struct platform_device h1940_device_bluetooth = {
459 .name = "h1940-bt",
460 .id = -1,
461};
462
463static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
464{
465 s3c24xx_mci_def_set_power(power_mode, vdd);
466
467 switch (power_mode) {
468 case MMC_POWER_OFF:
469 gpio_set_value(H1940_LATCH_SD_POWER, 0);
470 break;
471 case MMC_POWER_UP:
472 case MMC_POWER_ON:
473 gpio_set_value(H1940_LATCH_SD_POWER, 1);
474 break;
475 default:
476 break;
477 }
478}
479
480static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
481 .set_power = h1940_set_mmc_power,
482 .ocr_avail = MMC_VDD_32_33,
483};
484
485static struct gpiod_lookup_table h1940_mmc_gpio_table = {
486 .dev_id = "s3c2410-sdi",
487 .table = {
488 /* Card detect S3C2410_GPF(5) */
489 GPIO_LOOKUP("GPIOF", 5, "cd", GPIO_ACTIVE_LOW),
490 /* Write protect S3C2410_GPH(8) */
491 GPIO_LOOKUP("GPIOH", 8, "wp", GPIO_ACTIVE_LOW),
492 /* bus pins */
493 GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
494 GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
495 GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
496 GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
497 GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
498 GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
499 { },
500 },
501};
502
503static struct gpiod_lookup_table h1940_audio_gpio_table = {
504 .dev_id = "h1940-audio",
505 .table = {
506 GPIO_LOOKUP("H1940_LATCH",
507 H1940_LATCH_AUDIO_POWER - H1940_LATCH_GPIO(0),
508 "speaker-power", GPIO_ACTIVE_HIGH),
509 GPIO_LOOKUP("GPIOG", 4, "hp", GPIO_ACTIVE_HIGH),
510 { },
511 },
512};
513
514static struct platform_device h1940_audio = {
515 .name = "h1940-audio",
516 .id = -1,
517};
518
519static struct pwm_lookup h1940_pwm_lookup[] = {
520 PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight", NULL, 36296,
521 PWM_POLARITY_NORMAL),
522};
523
524static int h1940_backlight_init(struct device *dev)
525{
526 gpio_request(S3C2410_GPB(0), "Backlight");
527
528 gpio_direction_output(S3C2410_GPB(0), 0);
529 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
530 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
531 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
532
533 return 0;
534}
535
536static int h1940_backlight_notify(struct device *dev, int brightness)
537{
538 if (!brightness) {
539 gpio_direction_output(S3C2410_GPB(0), 1);
540 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
541 } else {
542 gpio_direction_output(S3C2410_GPB(0), 0);
543 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
544 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
545 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
546 }
547 return brightness;
548}
549
550static void h1940_backlight_exit(struct device *dev)
551{
552 gpio_direction_output(S3C2410_GPB(0), 1);
553 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
554}
555
556
557static struct platform_pwm_backlight_data backlight_data = {
558 .max_brightness = 100,
559 .dft_brightness = 50,
560 .init = h1940_backlight_init,
561 .notify = h1940_backlight_notify,
562 .exit = h1940_backlight_exit,
563};
564
565static struct platform_device h1940_backlight = {
566 .name = "pwm-backlight",
567 .dev = {
568 .parent = &samsung_device_pwm.dev,
569 .platform_data = &backlight_data,
570 },
571 .id = -1,
572};
573
574static void h1940_lcd_power_set(struct plat_lcd_data *pd,
575 unsigned int power)
576{
577 int value, retries = 100;
578
579 if (!power) {
580 gpio_set_value(S3C2410_GPC(0), 0);
581 /* wait for 3ac */
582 do {
583 value = gpio_get_value(S3C2410_GPC(6));
584 } while (value && retries--);
585
586 gpio_set_value(H1940_LATCH_LCD_P2, 0);
587 gpio_set_value(H1940_LATCH_LCD_P3, 0);
588 gpio_set_value(H1940_LATCH_LCD_P4, 0);
589
590 gpio_direction_output(S3C2410_GPC(1), 0);
591 gpio_direction_output(S3C2410_GPC(4), 0);
592
593 gpio_set_value(H1940_LATCH_LCD_P1, 0);
594 gpio_set_value(H1940_LATCH_LCD_P0, 0);
595
596 gpio_set_value(S3C2410_GPC(5), 0);
597
598 } else {
599 gpio_set_value(H1940_LATCH_LCD_P0, 1);
600 gpio_set_value(H1940_LATCH_LCD_P1, 1);
601
602 gpio_direction_input(S3C2410_GPC(1));
603 gpio_direction_input(S3C2410_GPC(4));
604 mdelay(10);
605 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
606 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
607
608 gpio_set_value(S3C2410_GPC(5), 1);
609 gpio_set_value(S3C2410_GPC(0), 1);
610
611 gpio_set_value(H1940_LATCH_LCD_P3, 1);
612 gpio_set_value(H1940_LATCH_LCD_P2, 1);
613 gpio_set_value(H1940_LATCH_LCD_P4, 1);
614 }
615}
616
617static struct plat_lcd_data h1940_lcd_power_data = {
618 .set_power = h1940_lcd_power_set,
619};
620
621static struct platform_device h1940_lcd_powerdev = {
622 .name = "platform-lcd",
623 .dev.parent = &s3c_device_lcd.dev,
624 .dev.platform_data = &h1940_lcd_power_data,
625};
626
627static struct uda1380_platform_data uda1380_info = {
628 .gpio_power = H1940_LATCH_UDA_POWER,
629 .gpio_reset = S3C2410_GPA(12),
630 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
631};
632
633static struct i2c_board_info h1940_i2c_devices[] = {
634 {
635 I2C_BOARD_INFO("uda1380", 0x1a),
636 .platform_data = &uda1380_info,
637 },
638};
639
640#define DECLARE_BUTTON(p, k, n, w) \
641 { \
642 .gpio = p, \
643 .code = k, \
644 .desc = n, \
645 .wakeup = w, \
646 .active_low = 1, \
647 }
648
649static struct gpio_keys_button h1940_buttons[] = {
650 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
651 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
652 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
653 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
654 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
655 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
656 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
657 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
658 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
659 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
660 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
661};
662
663static struct gpio_keys_platform_data h1940_buttons_data = {
664 .buttons = h1940_buttons,
665 .nbuttons = ARRAY_SIZE(h1940_buttons),
666};
667
668static struct platform_device h1940_dev_buttons = {
669 .name = "gpio-keys",
670 .id = -1,
671 .dev = {
672 .platform_data = &h1940_buttons_data,
673 }
674};
675
676static struct platform_device *h1940_devices[] __initdata = {
677 &h1940_dev_buttons,
678 &s3c_device_ohci,
679 &s3c_device_lcd,
680 &s3c_device_wdt,
681 &s3c_device_i2c0,
682 &s3c_device_iis,
683 &s3c_device_usbgadget,
684 &h1940_device_leds,
685 &h1940_device_bluetooth,
686 &s3c_device_sdi,
687 &s3c_device_rtc,
688 &samsung_device_pwm,
689 &h1940_backlight,
690 &h1940_lcd_powerdev,
691 &s3c_device_adc,
692 &s3c_device_ts,
693 &power_supply,
694 &h1940_battery,
695 &h1940_audio,
696};
697
698static void __init h1940_map_io(void)
699{
700 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
701 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
702 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
703
704 /* setup PM */
705
706#ifdef CONFIG_PM_H1940
707 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
708#endif
709 s3c_pm_init();
710
711 /* Add latch gpio chip, set latch initial value */
712 h1940_latch_control(0, 0);
713 WARN_ON(gpiochip_add_data(&h1940_latch_gpiochip, NULL));
714}
715
716static void __init h1940_init_time(void)
717{
718 s3c2410_init_clocks(12000000);
719 s3c24xx_timer_init();
720}
721
722/* H1940 and RX3715 need to reserve this for suspend */
723static void __init h1940_reserve(void)
724{
725 memblock_reserve(0x30003000, 0x1000);
726 memblock_reserve(0x30081000, 0x1000);
727}
728
729static void __init h1940_init(void)
730{
731 u32 tmp;
732
733 s3c24xx_fb_set_platdata(&h1940_fb_info);
734 gpiod_add_lookup_table(&h1940_udc_gpio_table);
735 gpiod_add_lookup_table(&h1940_mmc_gpio_table);
736 gpiod_add_lookup_table(&h1940_audio_gpio_table);
737 gpiod_add_lookup_table(&h1940_bat_gpio_table);
738 /* Configure the I2S pins (GPE0...GPE4) in correct mode */
739 s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
740 S3C_GPIO_PULL_NONE);
741 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
742 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
743 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
744 s3c_i2c0_set_platdata(NULL);
745
746 /* Turn off suspend on both USB ports, and switch the
747 * selectable USB port to USB device mode. */
748
749 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
750 S3C2410_MISCCR_USBSUSPND0 |
751 S3C2410_MISCCR_USBSUSPND1, 0x0);
752
753 tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
754 | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
755 | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
756 writel(tmp, S3C2410_UPLLCON);
757
758 gpio_request(S3C2410_GPC(0), "LCD power");
759 gpio_request(S3C2410_GPC(1), "LCD power");
760 gpio_request(S3C2410_GPC(4), "LCD power");
761 gpio_request(S3C2410_GPC(5), "LCD power");
762 gpio_request(S3C2410_GPC(6), "LCD power");
763 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
764 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
765 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
766 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
767 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
768 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
769 gpio_direction_output(S3C2410_GPC(0), 0);
770 gpio_direction_output(S3C2410_GPC(1), 0);
771 gpio_direction_output(S3C2410_GPC(4), 0);
772 gpio_direction_output(S3C2410_GPC(5), 0);
773 gpio_direction_input(S3C2410_GPC(6));
774 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
775 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
776 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
777 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
778 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
779 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
780
781 gpio_request(H1940_LATCH_SD_POWER, "SD power");
782 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
783
784 pwm_add_table(h1940_pwm_lookup, ARRAY_SIZE(h1940_pwm_lookup));
785 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
786
787 gpio_request(S3C2410_GPA(1), "Red LED blink");
788 gpio_request(S3C2410_GPA(3), "Blue LED blink");
789 gpio_request(S3C2410_GPA(7), "Green LED blink");
790 gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
791 gpio_direction_output(S3C2410_GPA(1), 0);
792 gpio_direction_output(S3C2410_GPA(3), 0);
793 gpio_direction_output(S3C2410_GPA(7), 0);
794 gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
795
796 i2c_register_board_info(0, h1940_i2c_devices,
797 ARRAY_SIZE(h1940_i2c_devices));
798}
799
800MACHINE_START(H1940, "IPAQ-H1940")
801 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
802 .atag_offset = 0x100,
803 .nr_irqs = NR_IRQS_S3C2410,
804 .map_io = h1940_map_io,
805 .reserve = h1940_reserve,
806 .init_irq = s3c2410_init_irq,
807 .init_machine = h1940_init,
808 .init_time = h1940_init_time,
809MACHINE_END