1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://www.handhelds.org/projects/h1940.html
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/types.h>
16 #include <linux/interrupt.h>
17 #include <linux/list.h>
18 #include <linux/memblock.h>
19 #include <linux/timer.h>
20 #include <linux/init.h>
21 #include <linux/device.h>
22 #include <linux/serial_core.h>
23 #include <linux/platform_device.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>
35 #include <video/platform_lcd.h>
37 #include <linux/mmc/host.h>
38 #include <linux/export.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/irq.h>
44 #include <mach/hardware.h>
46 #include <asm/mach-types.h>
48 #include <plat/regs-serial.h>
49 #include <mach/regs-lcd.h>
50 #include <mach/regs-clock.h>
52 #include <mach/regs-gpio.h>
53 #include <mach/gpio-fns.h>
54 #include <mach/gpio-nrs.h>
56 #include <mach/h1940.h>
57 #include <mach/h1940-latch.h>
62 #include <plat/gpio-cfg.h>
63 #include <plat/clock.h>
64 #include <plat/devs.h>
71 #include <sound/uda1380.h>
75 #define H1940_LATCH ((void __force __iomem *)0xF8000000)
77 #define H1940_PA_LATCH S3C2410_CS2
79 #define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
81 static struct map_desc h1940_iodesc[] __initdata = {
83 .virtual = (unsigned long)H1940_LATCH,
84 .pfn = __phys_to_pfn(H1940_PA_LATCH),
90 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
91 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
92 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
94 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
113 .uart_flags = UPF_CONS_FLOW,
120 /* Board control latch control */
122 static unsigned int latch_state;
124 static void h1940_latch_control(unsigned int clear, unsigned int set)
128 local_irq_save(flags);
130 latch_state &= ~clear;
133 __raw_writel(latch_state, H1940_LATCH);
135 local_irq_restore(flags);
138 static inline int h1940_gpiolib_to_latch(int offset)
140 return 1 << (offset + 16);
143 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
144 unsigned offset, int value)
146 int latch_bit = h1940_gpiolib_to_latch(offset);
148 h1940_latch_control(value ? 0 : latch_bit,
149 value ? latch_bit : 0);
152 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
153 unsigned offset, int value)
155 h1940_gpiolib_latch_set(chip, offset, value);
159 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
162 return (latch_state >> (offset + 16)) & 1;
165 static struct gpio_chip h1940_latch_gpiochip = {
166 .base = H1940_LATCH_GPIO(0),
167 .owner = THIS_MODULE,
168 .label = "H1940_LATCH",
170 .direction_output = h1940_gpiolib_latch_output,
171 .set = h1940_gpiolib_latch_set,
172 .get = h1940_gpiolib_latch_get,
175 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
176 .vbus_pin = S3C2410_GPG(5),
177 .vbus_pin_inverted = 1,
178 .pullup_pin = H1940_LATCH_USB_DP,
181 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
184 .oversampling_shift = 2,
185 .cfg_gpio = s3c24xx_ts_cfg_gpio,
191 static struct s3c2410fb_display h1940_lcd __initdata = {
192 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
193 S3C2410_LCDCON5_INVVLINE | \
194 S3C2410_LCDCON5_HWSWP,
196 .type = S3C2410_LCDCON1_TFT,
211 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
212 .displays = &h1940_lcd,
214 .default_display = 0,
217 .gpccon = 0xaa940659,
218 .gpccon_mask = 0xffffc0f0,
220 .gpcup_mask = 0xffffffff,
221 .gpdcon = 0xaa84aaa0,
222 .gpdcon_mask = 0xffffffff,
224 .gpdup_mask = 0xffffffff,
227 static int power_supply_init(struct device *dev)
229 return gpio_request(S3C2410_GPF(2), "cable plugged");
232 static int h1940_is_ac_online(void)
234 return !gpio_get_value(S3C2410_GPF(2));
237 static void power_supply_exit(struct device *dev)
239 gpio_free(S3C2410_GPF(2));
242 static char *h1940_supplicants[] = {
247 static struct pda_power_pdata power_supply_info = {
248 .init = power_supply_init,
249 .is_ac_online = h1940_is_ac_online,
250 .exit = power_supply_exit,
251 .supplied_to = h1940_supplicants,
252 .num_supplicants = ARRAY_SIZE(h1940_supplicants),
255 static struct resource power_supply_resources[] = {
258 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
259 IORESOURCE_IRQ_HIGHEDGE,
265 static struct platform_device power_supply = {
272 .resource = power_supply_resources,
273 .num_resources = ARRAY_SIZE(power_supply_resources),
276 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
277 { .volt = 4070, .cur = 162, .level = 100},
278 { .volt = 4040, .cur = 165, .level = 95},
279 { .volt = 4016, .cur = 164, .level = 90},
280 { .volt = 3996, .cur = 166, .level = 85},
281 { .volt = 3971, .cur = 168, .level = 80},
282 { .volt = 3951, .cur = 168, .level = 75},
283 { .volt = 3931, .cur = 170, .level = 70},
284 { .volt = 3903, .cur = 172, .level = 65},
285 { .volt = 3886, .cur = 172, .level = 60},
286 { .volt = 3858, .cur = 176, .level = 55},
287 { .volt = 3842, .cur = 176, .level = 50},
288 { .volt = 3818, .cur = 176, .level = 45},
289 { .volt = 3789, .cur = 180, .level = 40},
290 { .volt = 3769, .cur = 180, .level = 35},
291 { .volt = 3749, .cur = 184, .level = 30},
292 { .volt = 3732, .cur = 184, .level = 25},
293 { .volt = 3716, .cur = 184, .level = 20},
294 { .volt = 3708, .cur = 184, .level = 15},
295 { .volt = 3716, .cur = 96, .level = 10},
296 { .volt = 3700, .cur = 96, .level = 5},
297 { .volt = 3684, .cur = 96, .level = 0},
300 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
301 { .volt = 4130, .cur = 0, .level = 100},
302 { .volt = 3982, .cur = 0, .level = 50},
303 { .volt = 3854, .cur = 0, .level = 10},
304 { .volt = 3841, .cur = 0, .level = 0},
307 static int h1940_bat_init(void)
311 ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
314 gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);
320 static void h1940_bat_exit(void)
322 gpio_free(H1940_LATCH_SM803_ENABLE);
325 static void h1940_enable_charger(void)
327 gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
330 static void h1940_disable_charger(void)
332 gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
335 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
336 .init = h1940_bat_init,
337 .exit = h1940_bat_exit,
338 .enable_charger = h1940_enable_charger,
339 .disable_charger = h1940_disable_charger,
340 .gpio_charge_finished = S3C2410_GPF(3),
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),
347 .current_channel = 1,
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
358 static struct platform_device h1940_battery = {
359 .name = "s3c-adc-battery",
362 .parent = &s3c_device_adc.dev,
363 .platform_data = &h1940_bat_cfg,
367 static DEFINE_SPINLOCK(h1940_blink_spin);
369 int h1940_led_blink_set(unsigned gpio, int state,
370 unsigned long *delay_on, unsigned long *delay_off)
372 int blink_gpio, check_gpio1, check_gpio2;
375 case H1940_LATCH_LED_GREEN:
376 blink_gpio = S3C2410_GPA(7);
377 check_gpio1 = S3C2410_GPA(1);
378 check_gpio2 = S3C2410_GPA(3);
380 case H1940_LATCH_LED_RED:
381 blink_gpio = S3C2410_GPA(1);
382 check_gpio1 = S3C2410_GPA(7);
383 check_gpio2 = S3C2410_GPA(3);
386 blink_gpio = S3C2410_GPA(3);
387 check_gpio1 = S3C2410_GPA(1);
388 check_gpio1 = S3C2410_GPA(7);
392 if (delay_on && delay_off && !*delay_on && !*delay_off)
393 *delay_on = *delay_off = 500;
395 spin_lock(&h1940_blink_spin);
398 case GPIO_LED_NO_BLINK_LOW:
399 case GPIO_LED_NO_BLINK_HIGH:
400 if (!gpio_get_value(check_gpio1) &&
401 !gpio_get_value(check_gpio2))
402 gpio_set_value(H1940_LATCH_LED_FLASH, 0);
403 gpio_set_value(blink_gpio, 0);
404 if (gpio_is_valid(gpio))
405 gpio_set_value(gpio, state);
408 if (gpio_is_valid(gpio))
409 gpio_set_value(gpio, 0);
410 gpio_set_value(H1940_LATCH_LED_FLASH, 1);
411 gpio_set_value(blink_gpio, 1);
415 spin_unlock(&h1940_blink_spin);
419 EXPORT_SYMBOL(h1940_led_blink_set);
421 static struct gpio_led h1940_leds_desc[] = {
424 .default_trigger = "main-battery-full",
425 .gpio = H1940_LATCH_LED_GREEN,
426 .retain_state_suspended = 1,
431 = "main-battery-charging-blink-full-solid",
432 .gpio = H1940_LATCH_LED_RED,
433 .retain_state_suspended = 1,
437 static struct gpio_led_platform_data h1940_leds_pdata = {
438 .num_leds = ARRAY_SIZE(h1940_leds_desc),
439 .leds = h1940_leds_desc,
440 .gpio_blink_set = h1940_led_blink_set,
443 static struct platform_device h1940_device_leds = {
447 .platform_data = &h1940_leds_pdata,
451 static struct platform_device h1940_device_bluetooth = {
456 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
458 switch (power_mode) {
460 gpio_set_value(H1940_LATCH_SD_POWER, 0);
464 gpio_set_value(H1940_LATCH_SD_POWER, 1);
471 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
472 .gpio_detect = S3C2410_GPF(5),
473 .gpio_wprotect = S3C2410_GPH(8),
474 .set_power = h1940_set_mmc_power,
475 .ocr_avail = MMC_VDD_32_33,
478 static int h1940_backlight_init(struct device *dev)
480 gpio_request(S3C2410_GPB(0), "Backlight");
482 gpio_direction_output(S3C2410_GPB(0), 0);
483 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
484 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
485 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
490 static int h1940_backlight_notify(struct device *dev, int brightness)
493 gpio_direction_output(S3C2410_GPB(0), 1);
494 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
496 gpio_direction_output(S3C2410_GPB(0), 0);
497 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
498 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
499 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
504 static void h1940_backlight_exit(struct device *dev)
506 gpio_direction_output(S3C2410_GPB(0), 1);
507 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
511 static struct platform_pwm_backlight_data backlight_data = {
513 .max_brightness = 100,
514 .dft_brightness = 50,
516 .pwm_period_ns = 36296,
517 .init = h1940_backlight_init,
518 .notify = h1940_backlight_notify,
519 .exit = h1940_backlight_exit,
522 static struct platform_device h1940_backlight = {
523 .name = "pwm-backlight",
525 .parent = &s3c_device_timer[0].dev,
526 .platform_data = &backlight_data,
531 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
534 int value, retries = 100;
537 gpio_set_value(S3C2410_GPC(0), 0);
540 value = gpio_get_value(S3C2410_GPC(6));
541 } while (value && retries--);
543 gpio_set_value(H1940_LATCH_LCD_P2, 0);
544 gpio_set_value(H1940_LATCH_LCD_P3, 0);
545 gpio_set_value(H1940_LATCH_LCD_P4, 0);
547 gpio_direction_output(S3C2410_GPC(1), 0);
548 gpio_direction_output(S3C2410_GPC(4), 0);
550 gpio_set_value(H1940_LATCH_LCD_P1, 0);
551 gpio_set_value(H1940_LATCH_LCD_P0, 0);
553 gpio_set_value(S3C2410_GPC(5), 0);
556 gpio_set_value(H1940_LATCH_LCD_P0, 1);
557 gpio_set_value(H1940_LATCH_LCD_P1, 1);
559 gpio_direction_input(S3C2410_GPC(1));
560 gpio_direction_input(S3C2410_GPC(4));
562 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
563 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
565 gpio_set_value(S3C2410_GPC(5), 1);
566 gpio_set_value(S3C2410_GPC(0), 1);
568 gpio_set_value(H1940_LATCH_LCD_P3, 1);
569 gpio_set_value(H1940_LATCH_LCD_P2, 1);
570 gpio_set_value(H1940_LATCH_LCD_P4, 1);
574 static struct plat_lcd_data h1940_lcd_power_data = {
575 .set_power = h1940_lcd_power_set,
578 static struct platform_device h1940_lcd_powerdev = {
579 .name = "platform-lcd",
580 .dev.parent = &s3c_device_lcd.dev,
581 .dev.platform_data = &h1940_lcd_power_data,
584 static struct uda1380_platform_data uda1380_info = {
585 .gpio_power = H1940_LATCH_UDA_POWER,
586 .gpio_reset = S3C2410_GPA(12),
587 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
590 static struct i2c_board_info h1940_i2c_devices[] = {
592 I2C_BOARD_INFO("uda1380", 0x1a),
593 .platform_data = &uda1380_info,
597 #define DECLARE_BUTTON(p, k, n, w) \
606 static struct gpio_keys_button h1940_buttons[] = {
607 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
608 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
609 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
610 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
611 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
612 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
613 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
614 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
615 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
616 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
617 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
620 static struct gpio_keys_platform_data h1940_buttons_data = {
621 .buttons = h1940_buttons,
622 .nbuttons = ARRAY_SIZE(h1940_buttons),
625 static struct platform_device h1940_dev_buttons = {
629 .platform_data = &h1940_buttons_data,
633 static struct platform_device *h1940_devices[] __initdata = {
641 &s3c_device_usbgadget,
643 &h1940_device_bluetooth,
646 &s3c_device_timer[0],
655 static void __init h1940_map_io(void)
657 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
658 s3c24xx_init_clocks(0);
659 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
663 #ifdef CONFIG_PM_H1940
664 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
668 /* Add latch gpio chip, set latch initial value */
669 h1940_latch_control(0, 0);
670 WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
673 /* H1940 and RX3715 need to reserve this for suspend */
674 static void __init h1940_reserve(void)
676 memblock_reserve(0x30003000, 0x1000);
677 memblock_reserve(0x30081000, 0x1000);
680 static void __init h1940_init_irq(void)
685 static void __init h1940_init(void)
689 s3c24xx_fb_set_platdata(&h1940_fb_info);
690 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
691 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
692 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
693 s3c_i2c0_set_platdata(NULL);
695 /* Turn off suspend on both USB ports, and switch the
696 * selectable USB port to USB device mode. */
698 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
699 S3C2410_MISCCR_USBSUSPND0 |
700 S3C2410_MISCCR_USBSUSPND1, 0x0);
702 tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
703 | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
704 | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
705 writel(tmp, S3C2410_UPLLCON);
707 gpio_request(S3C2410_GPC(0), "LCD power");
708 gpio_request(S3C2410_GPC(1), "LCD power");
709 gpio_request(S3C2410_GPC(4), "LCD power");
710 gpio_request(S3C2410_GPC(5), "LCD power");
711 gpio_request(S3C2410_GPC(6), "LCD power");
712 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
713 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
714 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
715 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
716 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
717 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
718 gpio_direction_output(S3C2410_GPC(0), 0);
719 gpio_direction_output(S3C2410_GPC(1), 0);
720 gpio_direction_output(S3C2410_GPC(4), 0);
721 gpio_direction_output(S3C2410_GPC(5), 0);
722 gpio_direction_input(S3C2410_GPC(6));
723 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
724 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
725 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
726 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
727 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
728 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
730 gpio_request(H1940_LATCH_SD_POWER, "SD power");
731 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
733 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
735 gpio_request(S3C2410_GPA(1), "Red LED blink");
736 gpio_request(S3C2410_GPA(3), "Blue LED blink");
737 gpio_request(S3C2410_GPA(7), "Green LED blink");
738 gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
739 gpio_direction_output(S3C2410_GPA(1), 0);
740 gpio_direction_output(S3C2410_GPA(3), 0);
741 gpio_direction_output(S3C2410_GPA(7), 0);
742 gpio_direction_output(H1940_LATCH_LED_FLASH, 0);
744 i2c_register_board_info(0, h1940_i2c_devices,
745 ARRAY_SIZE(h1940_i2c_devices));
748 MACHINE_START(H1940, "IPAQ-H1940")
749 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
750 .atag_offset = 0x100,
751 .map_io = h1940_map_io,
752 .reserve = h1940_reserve,
753 .init_irq = h1940_init_irq,
754 .init_machine = h1940_init,
755 .timer = &s3c24xx_timer,
756 .restart = s3c2410_restart,