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Kukjin Kim232910d2013-01-02 10:18:58 -08001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * 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 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070011*/
12
13#include <linux/kernel.h>
14#include <linux/types.h>
15#include <linux/interrupt.h>
16#include <linux/list.h>
Russell King8d717a52010-05-22 19:47:18 +010017#include <linux/memblock.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include <linux/timer.h>
19#include <linux/init.h>
Kay Sieversedbaa602011-12-21 16:26:03 -080020#include <linux/device.h>
Ben Dooksb6d1f542006-12-17 23:22:26 +010021#include <linux/serial_core.h>
Russell Kingd052d1b2005-10-29 19:07:23 +010022#include <linux/platform_device.h>
Russell Kingfced80c2008-09-06 12:10:45 +010023#include <linux/io.h>
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +010024#include <linux/gpio.h>
Arnaud Patard (Rtp)bbb1c832011-01-06 21:52:46 +020025#include <linux/input.h>
26#include <linux/gpio_keys.h>
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +010027#include <linux/pwm_backlight.h>
Vasily Khoruzhick68730b42010-09-27 09:32:49 +030028#include <linux/i2c.h>
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +020029#include <linux/leds.h>
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +020030#include <linux/pda_power.h>
31#include <linux/s3c_adc_battery.h>
Vasily Khoruzhick25d391c2011-01-06 21:52:50 +020032#include <linux/delay.h>
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +020033
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +010034#include <video/platform_lcd.h>
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +010035
36#include <linux/mmc/host.h>
Paul Gortmakerdc280942011-07-31 16:17:29 -040037#include <linux/export.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
Kukjin Kim232910d2013-01-02 10:18:58 -080039#include <asm/irq.h>
40#include <asm/mach-types.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070041#include <asm/mach/arch.h>
42#include <asm/mach/map.h>
43#include <asm/mach/irq.h>
44
Arnd Bergmann436d42c2012-08-24 15:22:12 +020045#include <linux/platform_data/i2c-s3c2410.h>
Arnd Bergmann436d42c2012-08-24 15:22:12 +020046#include <linux/platform_data/mmc-s3cmci.h>
47#include <linux/platform_data/touchscreen-s3c2410.h>
Kukjin Kim232910d2013-01-02 10:18:58 -080048#include <linux/platform_data/usb-s3c2410_udc.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070049
Vasily Khoruzhick68730b42010-09-27 09:32:49 +030050#include <sound/uda1380.h>
51
Kukjin Kim232910d2013-01-02 10:18:58 -080052#include <mach/fb.h>
53#include <mach/hardware.h>
54#include <mach/regs-clock.h>
55#include <mach/regs-gpio.h>
56#include <mach/regs-lcd.h>
57
58#include <plat/clock.h>
59#include <plat/cpu.h>
60#include <plat/devs.h>
61#include <plat/gpio-cfg.h>
62#include <plat/pll.h>
63#include <plat/pm.h>
64#include <plat/regs-serial.h>
65
66
Kukjin Kimb27b0722012-01-03 14:02:03 +010067#include "common.h"
Kukjin Kim232910d2013-01-02 10:18:58 -080068#include "h1940.h"
Kukjin Kimb27b0722012-01-03 14:02:03 +010069
Vasily Khoruzhick14477092010-09-08 12:39:46 +030070#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
Linus Torvalds1da177e2005-04-16 15:20:36 -070076static struct map_desc h1940_iodesc[] __initdata = {
Ben Dookse1981682006-02-10 22:40:51 +000077 [0] = {
78 .virtual = (unsigned long)H1940_LATCH,
79 .pfn = __phys_to_pfn(H1940_PA_LATCH),
80 .length = SZ_16K,
81 .type = MT_DEVICE
82 },
Linus Torvalds1da177e2005-04-16 15:20:36 -070083};
84
85#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
86#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
87#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
88
Ben Dooks66a9b492006-06-18 23:04:05 +010089static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070090 [0] = {
91 .hwport = 0,
92 .flags = 0,
93 .ucon = 0x3c5,
94 .ulcon = 0x03,
95 .ufcon = 0x51,
96 },
97 [1] = {
98 .hwport = 1,
99 .flags = 0,
100 .ucon = 0x245,
101 .ulcon = 0x03,
102 .ufcon = 0x00,
103 },
104 /* IR port */
105 [2] = {
106 .hwport = 2,
107 .flags = 0,
108 .uart_flags = UPF_CONS_FLOW,
109 .ucon = 0x3c5,
110 .ulcon = 0x43,
111 .ufcon = 0x51,
112 }
113};
114
Ben Dookse1981682006-02-10 22:40:51 +0000115/* Board control latch control */
116
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300117static unsigned int latch_state;
Ben Dookse1981682006-02-10 22:40:51 +0000118
Vasily Khoruzhick14477092010-09-08 12:39:46 +0300119static void h1940_latch_control(unsigned int clear, unsigned int set)
Ben Dookse1981682006-02-10 22:40:51 +0000120{
121 unsigned long flags;
122
123 local_irq_save(flags);
124
125 latch_state &= ~clear;
126 latch_state |= set;
127
128 __raw_writel(latch_state, H1940_LATCH);
129
130 local_irq_restore(flags);
131}
132
Vasily Khoruzhick14477092010-09-08 12:39:46 +0300133static inline int h1940_gpiolib_to_latch(int offset)
134{
135 return 1 << (offset + 16);
136}
137
138static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
139 unsigned offset, int value)
140{
141 int latch_bit = h1940_gpiolib_to_latch(offset);
142
143 h1940_latch_control(value ? 0 : latch_bit,
144 value ? latch_bit : 0);
145}
146
147static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
148 unsigned offset, int value)
149{
150 h1940_gpiolib_latch_set(chip, offset, value);
151 return 0;
152}
153
154static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
155 unsigned offset)
156{
157 return (latch_state >> (offset + 16)) & 1;
158}
159
Kukjin Kim4cfb7b72012-01-21 11:46:41 +0900160static struct gpio_chip h1940_latch_gpiochip = {
Vasily Khoruzhick14477092010-09-08 12:39:46 +0300161 .base = H1940_LATCH_GPIO(0),
162 .owner = THIS_MODULE,
163 .label = "H1940_LATCH",
164 .ngpio = 16,
165 .direction_output = h1940_gpiolib_latch_output,
166 .set = h1940_gpiolib_latch_set,
167 .get = h1940_gpiolib_latch_get,
168};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
Arnaud Patard71a9c422007-02-13 00:21:26 +0100170static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
Ben Dooks070276d2009-05-17 22:32:23 +0100171 .vbus_pin = S3C2410_GPG(5),
Arnaud Patard71a9c422007-02-13 00:21:26 +0100172 .vbus_pin_inverted = 1,
Lars-Peter Clausene27c3c52011-03-07 08:42:00 +0100173 .pullup_pin = H1940_LATCH_USB_DP,
Arnaud Patard71a9c422007-02-13 00:21:26 +0100174};
175
Arnaud Patardce8877b2009-12-23 19:25:05 +0000176static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
177 .delay = 10000,
178 .presc = 49,
179 .oversampling_shift = 2,
Naveen Krishna5bfdca12010-05-18 20:44:27 +0900180 .cfg_gpio = s3c24xx_ts_cfg_gpio,
Arnaud Patardce8877b2009-12-23 19:25:05 +0000181};
Arnaud Patard71a9c422007-02-13 00:21:26 +0100182
Arnaud Patardf92273c2005-09-09 13:10:10 -0700183/**
184 * Set lcd on or off
185 **/
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700186static struct s3c2410fb_display h1940_lcd __initdata = {
Krzysztof Heltf28ef572007-10-16 01:28:58 -0700187 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
188 S3C2410_LCDCON5_INVVLINE | \
189 S3C2410_LCDCON5_HWSWP,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700190
Krzysztof Helt1f411532007-10-16 01:28:57 -0700191 .type = S3C2410_LCDCON1_TFT,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700192 .width = 240,
193 .height = 320,
Krzysztof Helt69816692007-10-16 01:29:06 -0700194 .pixclock = 260000,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700195 .xres = 240,
196 .yres = 320,
197 .bpp = 16,
Mike Solovyev26be1b72010-05-12 15:38:00 +0400198 .left_margin = 8,
199 .right_margin = 20,
Krzysztof Helt93d11f52007-10-16 01:29:00 -0700200 .hsync_len = 4,
Krzysztof Helt5f20f692007-10-16 01:28:59 -0700201 .upper_margin = 8,
202 .lower_margin = 7,
Krzysztof Helt93d11f52007-10-16 01:29:00 -0700203 .vsync_len = 1,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700204};
205
206static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700207 .displays = &h1940_lcd,
208 .num_displays = 1,
209 .default_display = 0,
210
Vasily Khoruzhick25d391c2011-01-06 21:52:50 +0200211 .lpcsel = 0x02,
212 .gpccon = 0xaa940659,
213 .gpccon_mask = 0xffffc0f0,
214 .gpcup = 0x0000ffff,
215 .gpcup_mask = 0xffffffff,
216 .gpdcon = 0xaa84aaa0,
217 .gpdcon_mask = 0xffffffff,
218 .gpdup = 0x0000faff,
219 .gpdup_mask = 0xffffffff,
Arnaud Patardf92273c2005-09-09 13:10:10 -0700220};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200222static int power_supply_init(struct device *dev)
223{
224 return gpio_request(S3C2410_GPF(2), "cable plugged");
225}
226
227static int h1940_is_ac_online(void)
228{
229 return !gpio_get_value(S3C2410_GPF(2));
230}
231
232static void power_supply_exit(struct device *dev)
233{
234 gpio_free(S3C2410_GPF(2));
235}
236
237static char *h1940_supplicants[] = {
238 "main-battery",
239 "backup-battery",
240};
241
242static struct pda_power_pdata power_supply_info = {
243 .init = power_supply_init,
244 .is_ac_online = h1940_is_ac_online,
245 .exit = power_supply_exit,
246 .supplied_to = h1940_supplicants,
247 .num_supplicants = ARRAY_SIZE(h1940_supplicants),
248};
249
250static struct resource power_supply_resources[] = {
Tushar Behera635a4722012-05-12 16:12:24 +0900251 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
252 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200253};
254
255static struct platform_device power_supply = {
256 .name = "pda-power",
257 .id = -1,
258 .dev = {
259 .platform_data =
260 &power_supply_info,
261 },
262 .resource = power_supply_resources,
263 .num_resources = ARRAY_SIZE(power_supply_resources),
264};
265
266static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
267 { .volt = 4070, .cur = 162, .level = 100},
268 { .volt = 4040, .cur = 165, .level = 95},
269 { .volt = 4016, .cur = 164, .level = 90},
270 { .volt = 3996, .cur = 166, .level = 85},
271 { .volt = 3971, .cur = 168, .level = 80},
272 { .volt = 3951, .cur = 168, .level = 75},
273 { .volt = 3931, .cur = 170, .level = 70},
274 { .volt = 3903, .cur = 172, .level = 65},
275 { .volt = 3886, .cur = 172, .level = 60},
276 { .volt = 3858, .cur = 176, .level = 55},
277 { .volt = 3842, .cur = 176, .level = 50},
278 { .volt = 3818, .cur = 176, .level = 45},
279 { .volt = 3789, .cur = 180, .level = 40},
280 { .volt = 3769, .cur = 180, .level = 35},
281 { .volt = 3749, .cur = 184, .level = 30},
282 { .volt = 3732, .cur = 184, .level = 25},
283 { .volt = 3716, .cur = 184, .level = 20},
284 { .volt = 3708, .cur = 184, .level = 15},
285 { .volt = 3716, .cur = 96, .level = 10},
286 { .volt = 3700, .cur = 96, .level = 5},
287 { .volt = 3684, .cur = 96, .level = 0},
288};
289
290static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
291 { .volt = 4130, .cur = 0, .level = 100},
292 { .volt = 3982, .cur = 0, .level = 50},
293 { .volt = 3854, .cur = 0, .level = 10},
294 { .volt = 3841, .cur = 0, .level = 0},
295};
296
Kukjin Kim4cfb7b72012-01-21 11:46:41 +0900297static int h1940_bat_init(void)
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200298{
299 int ret;
300
301 ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
302 if (ret)
303 return ret;
304 gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
305
306 return 0;
307
308}
309
Kukjin Kim4cfb7b72012-01-21 11:46:41 +0900310static void h1940_bat_exit(void)
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200311{
312 gpio_free(H1940_LATCH_SM803_ENABLE);
313}
314
Kukjin Kim4cfb7b72012-01-21 11:46:41 +0900315static void h1940_enable_charger(void)
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200316{
317 gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
318}
319
Kukjin Kim4cfb7b72012-01-21 11:46:41 +0900320static void h1940_disable_charger(void)
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200321{
322 gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
323}
324
325static struct s3c_adc_bat_pdata h1940_bat_cfg = {
326 .init = h1940_bat_init,
327 .exit = h1940_bat_exit,
328 .enable_charger = h1940_enable_charger,
329 .disable_charger = h1940_disable_charger,
330 .gpio_charge_finished = S3C2410_GPF(3),
331 .gpio_inverted = 1,
332 .lut_noac = bat_lut_noac,
333 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
334 .lut_acin = bat_lut_acin,
335 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
336 .volt_channel = 0,
337 .current_channel = 1,
338 .volt_mult = 4056,
339 .current_mult = 1893,
340 .internal_impedance = 200,
341 .backup_volt_channel = 3,
342 /* TODO Check backup volt multiplier */
343 .backup_volt_mult = 4056,
344 .backup_volt_min = 0,
345 .backup_volt_max = 4149288
346};
347
348static struct platform_device h1940_battery = {
349 .name = "s3c-adc-battery",
350 .id = -1,
351 .dev = {
352 .parent = &s3c_device_adc.dev,
353 .platform_data = &h1940_bat_cfg,
354 },
355};
356
Kukjin Kim4cfb7b72012-01-21 11:46:41 +0900357static DEFINE_SPINLOCK(h1940_blink_spin);
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +0200358
359int h1940_led_blink_set(unsigned gpio, int state,
360 unsigned long *delay_on, unsigned long *delay_off)
361{
362 int blink_gpio, check_gpio1, check_gpio2;
363
364 switch (gpio) {
365 case H1940_LATCH_LED_GREEN:
366 blink_gpio = S3C2410_GPA(7);
367 check_gpio1 = S3C2410_GPA(1);
368 check_gpio2 = S3C2410_GPA(3);
369 break;
370 case H1940_LATCH_LED_RED:
371 blink_gpio = S3C2410_GPA(1);
372 check_gpio1 = S3C2410_GPA(7);
373 check_gpio2 = S3C2410_GPA(3);
374 break;
375 default:
376 blink_gpio = S3C2410_GPA(3);
377 check_gpio1 = S3C2410_GPA(1);
Julia Lawall884dc5a2012-09-13 16:01:09 +0900378 check_gpio2 = S3C2410_GPA(7);
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +0200379 break;
380 }
381
382 if (delay_on && delay_off && !*delay_on && !*delay_off)
383 *delay_on = *delay_off = 500;
384
385 spin_lock(&h1940_blink_spin);
386
387 switch (state) {
388 case GPIO_LED_NO_BLINK_LOW:
389 case GPIO_LED_NO_BLINK_HIGH:
390 if (!gpio_get_value(check_gpio1) &&
391 !gpio_get_value(check_gpio2))
392 gpio_set_value(H1940_LATCH_LED_FLASH, 0);
393 gpio_set_value(blink_gpio, 0);
394 if (gpio_is_valid(gpio))
395 gpio_set_value(gpio, state);
396 break;
397 case GPIO_LED_BLINK:
398 if (gpio_is_valid(gpio))
399 gpio_set_value(gpio, 0);
400 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
401 gpio_set_value(blink_gpio, 1);
402 break;
403 }
404
405 spin_unlock(&h1940_blink_spin);
406
407 return 0;
408}
409EXPORT_SYMBOL(h1940_led_blink_set);
410
411static struct gpio_led h1940_leds_desc[] = {
412 {
413 .name = "Green",
Vasily Khoruzhick9edb2402011-03-17 20:04:57 +0200414 .default_trigger = "main-battery-full",
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +0200415 .gpio = H1940_LATCH_LED_GREEN,
416 .retain_state_suspended = 1,
417 },
418 {
419 .name = "Red",
Vasily Khoruzhick9edb2402011-03-17 20:04:57 +0200420 .default_trigger
421 = "main-battery-charging-blink-full-solid",
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +0200422 .gpio = H1940_LATCH_LED_RED,
423 .retain_state_suspended = 1,
424 },
425};
426
427static struct gpio_led_platform_data h1940_leds_pdata = {
428 .num_leds = ARRAY_SIZE(h1940_leds_desc),
429 .leds = h1940_leds_desc,
430 .gpio_blink_set = h1940_led_blink_set,
431};
432
Ben Dooksff34aaa2009-09-28 12:45:47 +0900433static struct platform_device h1940_device_leds = {
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +0200434 .name = "leds-gpio",
435 .id = -1,
436 .dev = {
437 .platform_data = &h1940_leds_pdata,
438 },
Arnaud Patardd2a76022007-02-13 00:50:34 +0100439};
440
Ben Dooksff34aaa2009-09-28 12:45:47 +0900441static struct platform_device h1940_device_bluetooth = {
Arnaud Patard7fdc7842007-05-09 21:41:03 +0100442 .name = "h1940-bt",
443 .id = -1,
444};
445
Vasily Khoruzhick48cd65a2010-09-27 00:27:41 +0300446static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
447{
448 switch (power_mode) {
449 case MMC_POWER_OFF:
450 gpio_set_value(H1940_LATCH_SD_POWER, 0);
451 break;
452 case MMC_POWER_UP:
453 case MMC_POWER_ON:
454 gpio_set_value(H1940_LATCH_SD_POWER, 1);
455 break;
456 default:
457 break;
Peter Senna Tschudindec2e822012-09-13 16:05:21 +0900458 }
Vasily Khoruzhick48cd65a2010-09-27 00:27:41 +0300459}
460
Ben Dooks22c810a2010-01-18 16:24:22 +0900461static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +0100462 .gpio_detect = S3C2410_GPF(5),
463 .gpio_wprotect = S3C2410_GPH(8),
Vasily Khoruzhick48cd65a2010-09-27 00:27:41 +0300464 .set_power = h1940_set_mmc_power,
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +0100465 .ocr_avail = MMC_VDD_32_33,
466};
467
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100468static int h1940_backlight_init(struct device *dev)
469{
470 gpio_request(S3C2410_GPB(0), "Backlight");
471
Ben Dooksdb61ac52010-05-04 11:40:51 +0900472 gpio_direction_output(S3C2410_GPB(0), 0);
Ben Dooksfb378742010-05-06 11:03:50 +0900473 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
Ben Dooks40b956f2010-05-04 14:38:49 +0900474 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300475 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100476
477 return 0;
478}
479
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300480static int h1940_backlight_notify(struct device *dev, int brightness)
481{
482 if (!brightness) {
483 gpio_direction_output(S3C2410_GPB(0), 1);
484 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
485 } else {
486 gpio_direction_output(S3C2410_GPB(0), 0);
487 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
488 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
489 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
490 }
491 return brightness;
492}
493
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100494static void h1940_backlight_exit(struct device *dev)
495{
Ben Dooksdb61ac52010-05-04 11:40:51 +0900496 gpio_direction_output(S3C2410_GPB(0), 1);
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300497 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100498}
499
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300500
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100501static struct platform_pwm_backlight_data backlight_data = {
502 .pwm_id = 0,
503 .max_brightness = 100,
504 .dft_brightness = 50,
505 /* tcnt = 0x31 */
506 .pwm_period_ns = 36296,
507 .init = h1940_backlight_init,
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300508 .notify = h1940_backlight_notify,
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100509 .exit = h1940_backlight_exit,
510};
511
512static struct platform_device h1940_backlight = {
513 .name = "pwm-backlight",
514 .dev = {
515 .parent = &s3c_device_timer[0].dev,
516 .platform_data = &backlight_data,
517 },
518 .id = -1,
519};
520
521static void h1940_lcd_power_set(struct plat_lcd_data *pd,
522 unsigned int power)
523{
Vasily Khoruzhick25d391c2011-01-06 21:52:50 +0200524 int value, retries = 100;
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100525
526 if (!power) {
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300527 gpio_set_value(S3C2410_GPC(0), 0);
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100528 /* wait for 3ac */
529 do {
Ben Dooksdb61ac52010-05-04 11:40:51 +0900530 value = gpio_get_value(S3C2410_GPC(6));
Vasily Khoruzhick25d391c2011-01-06 21:52:50 +0200531 } while (value && retries--);
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300532
533 gpio_set_value(H1940_LATCH_LCD_P2, 0);
534 gpio_set_value(H1940_LATCH_LCD_P3, 0);
535 gpio_set_value(H1940_LATCH_LCD_P4, 0);
536
537 gpio_direction_output(S3C2410_GPC(1), 0);
538 gpio_direction_output(S3C2410_GPC(4), 0);
539
540 gpio_set_value(H1940_LATCH_LCD_P1, 0);
541 gpio_set_value(H1940_LATCH_LCD_P0, 0);
542
543 gpio_set_value(S3C2410_GPC(5), 0);
544
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100545 } else {
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300546 gpio_set_value(H1940_LATCH_LCD_P0, 1);
547 gpio_set_value(H1940_LATCH_LCD_P1, 1);
548
Vasily Khoruzhick25d391c2011-01-06 21:52:50 +0200549 gpio_direction_input(S3C2410_GPC(1));
550 gpio_direction_input(S3C2410_GPC(4));
551 mdelay(10);
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300552 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
553 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
554
555 gpio_set_value(S3C2410_GPC(5), 1);
556 gpio_set_value(S3C2410_GPC(0), 1);
557
558 gpio_set_value(H1940_LATCH_LCD_P3, 1);
559 gpio_set_value(H1940_LATCH_LCD_P2, 1);
560 gpio_set_value(H1940_LATCH_LCD_P4, 1);
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100561 }
562}
563
564static struct plat_lcd_data h1940_lcd_power_data = {
565 .set_power = h1940_lcd_power_set,
566};
567
568static struct platform_device h1940_lcd_powerdev = {
569 .name = "platform-lcd",
570 .dev.parent = &s3c_device_lcd.dev,
571 .dev.platform_data = &h1940_lcd_power_data,
572};
573
Vasily Khoruzhick68730b42010-09-27 09:32:49 +0300574static struct uda1380_platform_data uda1380_info = {
575 .gpio_power = H1940_LATCH_UDA_POWER,
576 .gpio_reset = S3C2410_GPA(12),
577 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
578};
579
580static struct i2c_board_info h1940_i2c_devices[] = {
581 {
582 I2C_BOARD_INFO("uda1380", 0x1a),
583 .platform_data = &uda1380_info,
584 },
585};
586
Arnaud Patard (Rtp)bbb1c832011-01-06 21:52:46 +0200587#define DECLARE_BUTTON(p, k, n, w) \
588 { \
589 .gpio = p, \
590 .code = k, \
591 .desc = n, \
592 .wakeup = w, \
593 .active_low = 1, \
594 }
595
596static struct gpio_keys_button h1940_buttons[] = {
597 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
598 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
599 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
600 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
601 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
602 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
603 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
604 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
605 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
606 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
607 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
608};
609
610static struct gpio_keys_platform_data h1940_buttons_data = {
611 .buttons = h1940_buttons,
612 .nbuttons = ARRAY_SIZE(h1940_buttons),
613};
614
615static struct platform_device h1940_dev_buttons = {
616 .name = "gpio-keys",
617 .id = -1,
618 .dev = {
619 .platform_data = &h1940_buttons_data,
620 }
621};
622
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623static struct platform_device *h1940_devices[] __initdata = {
Arnaud Patard (Rtp)bbb1c832011-01-06 21:52:46 +0200624 &h1940_dev_buttons,
Ben Dooksb8132482009-11-23 00:13:39 +0000625 &s3c_device_ohci,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 &s3c_device_lcd,
627 &s3c_device_wdt,
Ben Dooks3e1b7762008-10-31 16:14:40 +0000628 &s3c_device_i2c0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 &s3c_device_iis,
Arnaud Patard71a9c422007-02-13 00:21:26 +0100630 &s3c_device_usbgadget,
Ben Dooksff34aaa2009-09-28 12:45:47 +0900631 &h1940_device_leds,
632 &h1940_device_bluetooth,
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +0100633 &s3c_device_sdi,
arnaud.patard@rtp-net.org13733d52009-11-17 14:54:57 +0100634 &s3c_device_rtc,
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100635 &s3c_device_timer[0],
636 &h1940_backlight,
637 &h1940_lcd_powerdev,
Arnaud Patard17dcd132010-04-22 10:47:43 +0200638 &s3c_device_adc,
639 &s3c_device_ts,
Vasily Khoruzhicka8e99852011-01-06 21:52:49 +0200640 &power_supply,
641 &h1940_battery,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642};
643
Ben Dooks5fe10ab2005-09-20 17:24:33 +0100644static void __init h1940_map_io(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700645{
646 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
647 s3c24xx_init_clocks(0);
648 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
Ben Dooks90733412006-12-06 01:50:24 +0100649
650 /* setup PM */
651
Krzysztof Heltb1dfe1f2007-03-19 15:10:20 +0100652#ifdef CONFIG_PM_H1940
Ben Dooks90733412006-12-06 01:50:24 +0100653 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
Krzysztof Heltb1dfe1f2007-03-19 15:10:20 +0100654#endif
Ben Dooks4e59c252008-12-12 00:24:18 +0000655 s3c_pm_init();
Vasily Khoruzhick14477092010-09-08 12:39:46 +0300656
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300657 /* Add latch gpio chip, set latch initial value */
658 h1940_latch_control(0, 0);
Vasily Khoruzhick14477092010-09-08 12:39:46 +0300659 WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700660}
661
Russell King98c672c2010-05-22 18:18:57 +0100662/* H1940 and RX3715 need to reserve this for suspend */
663static void __init h1940_reserve(void)
664{
Russell King8d717a52010-05-22 19:47:18 +0100665 memblock_reserve(0x30003000, 0x1000);
666 memblock_reserve(0x30081000, 0x1000);
Russell King98c672c2010-05-22 18:18:57 +0100667}
668
Ben Dooks5fe10ab2005-09-20 17:24:33 +0100669static void __init h1940_init_irq(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670{
671 s3c24xx_init_irq();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700672}
673
Ben Dooks5fe10ab2005-09-20 17:24:33 +0100674static void __init h1940_init(void)
Arnaud Patardf92273c2005-09-09 13:10:10 -0700675{
Arnaud Patard71a9c422007-02-13 00:21:26 +0100676 u32 tmp;
677
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700678 s3c24xx_fb_set_platdata(&h1940_fb_info);
Ben Dooks22c810a2010-01-18 16:24:22 +0900679 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
Arnaud Patard71a9c422007-02-13 00:21:26 +0100680 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
Arnaud Patardce8877b2009-12-23 19:25:05 +0000681 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
Ben Dooks3e1b7762008-10-31 16:14:40 +0000682 s3c_i2c0_set_platdata(NULL);
Arnaud Patard71a9c422007-02-13 00:21:26 +0100683
684 /* Turn off suspend on both USB ports, and switch the
685 * selectable USB port to USB device mode. */
686
687 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
688 S3C2410_MISCCR_USBSUSPND0 |
689 S3C2410_MISCCR_USBSUSPND1, 0x0);
690
Kukjin Kim52e329e2011-10-04 19:41:43 +0900691 tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
692 | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
693 | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
Arnaud Patard71a9c422007-02-13 00:21:26 +0100694 writel(tmp, S3C2410_UPLLCON);
Ben Dooks57e51712007-04-20 11:19:16 +0100695
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100696 gpio_request(S3C2410_GPC(0), "LCD power");
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300697 gpio_request(S3C2410_GPC(1), "LCD power");
698 gpio_request(S3C2410_GPC(4), "LCD power");
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100699 gpio_request(S3C2410_GPC(5), "LCD power");
700 gpio_request(S3C2410_GPC(6), "LCD power");
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300701 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
702 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
703 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
704 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
705 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
706 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
707 gpio_direction_output(S3C2410_GPC(0), 0);
708 gpio_direction_output(S3C2410_GPC(1), 0);
709 gpio_direction_output(S3C2410_GPC(4), 0);
710 gpio_direction_output(S3C2410_GPC(5), 0);
Ben Dooksdb61ac52010-05-04 11:40:51 +0900711 gpio_direction_input(S3C2410_GPC(6));
Vasily Khoruzhick53193dd2010-09-27 09:28:00 +0300712 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
713 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
714 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
715 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
716 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
717 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100718
Vasily Khoruzhick48cd65a2010-09-27 00:27:41 +0300719 gpio_request(H1940_LATCH_SD_POWER, "SD power");
720 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721
722 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
Vasily Khoruzhick68730b42010-09-27 09:32:49 +0300723
Vasily Khoruzhick50e2d102011-01-06 21:52:48 +0200724 gpio_request(S3C2410_GPA(1), "Red LED blink");
725 gpio_request(S3C2410_GPA(3), "Blue LED blink");
726 gpio_request(S3C2410_GPA(7), "Green LED blink");
727 gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
728 gpio_direction_output(S3C2410_GPA(1), 0);
729 gpio_direction_output(S3C2410_GPA(3), 0);
730 gpio_direction_output(S3C2410_GPA(7), 0);
731 gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
732
Vasily Khoruzhick68730b42010-09-27 09:32:49 +0300733 i2c_register_board_info(0, h1940_i2c_devices,
734 ARRAY_SIZE(h1940_i2c_devices));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735}
736
737MACHINE_START(H1940, "IPAQ-H1940")
Ben Dooksafdd2252010-05-07 09:24:05 +0900738 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
Nicolas Pitre69d50712011-07-05 22:38:17 -0400739 .atag_offset = 0x100,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 .map_io = h1940_map_io,
Russell King98c672c2010-05-22 18:18:57 +0100741 .reserve = h1940_reserve,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742 .init_irq = h1940_init_irq,
743 .init_machine = h1940_init,
744 .timer = &s3c24xx_timer,
Kukjin Kimb27b0722012-01-03 14:02:03 +0100745 .restart = s3c2410_restart,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746MACHINE_END