1 /* linux/arch/arm/mach-s3c2440/mach-rx1950.c
3 * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
4 * Copyright (c) 2007-2010 Vasily Khoruzhick
6 * based on smdk2440 written by Ben Dooks
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/delay.h>
20 #include <linux/timer.h>
21 #include <linux/init.h>
22 #include <linux/gpio.h>
23 #include <linux/platform_device.h>
24 #include <linux/serial_core.h>
25 #include <linux/input.h>
26 #include <linux/gpio_keys.h>
27 #include <linux/sysdev.h>
28 #include <linux/pda_power.h>
29 #include <linux/pwm_backlight.h>
30 #include <linux/pwm.h>
31 #include <linux/s3c_adc_battery.h>
32 #include <linux/leds.h>
33 #include <linux/i2c.h>
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/partitions.h>
38 #include <linux/mmc/host.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach-types.h>
44 #include <mach/regs-gpio.h>
45 #include <mach/regs-gpioj.h>
46 #include <mach/regs-lcd.h>
47 #include <mach/h1940.h>
50 #include <plat/clock.h>
51 #include <plat/regs-serial.h>
52 #include <plat/regs-iic.h>
55 #include <plat/nand.h>
57 #include <plat/devs.h>
63 #include <sound/uda1380.h>
65 #define LCD_PWM_PERIOD 192960
66 #define LCD_PWM_DUTY 127353
68 static struct map_desc rx1950_iodesc[] __initdata = {
71 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
78 .clk_sel = S3C2410_UCON_CLKSEL3,
86 .clk_sel = S3C2410_UCON_CLKSEL3,
95 .clk_sel = S3C2410_UCON_CLKSEL3,
99 static struct s3c2410fb_display rx1950_display = {
100 .type = S3C2410_LCDCON1_TFT,
115 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
116 S3C2410_LCDCON5_INVVCLK |
117 S3C2410_LCDCON5_INVVLINE |
118 S3C2410_LCDCON5_INVVFRAME |
119 S3C2410_LCDCON5_HWSWP |
125 static int power_supply_init(struct device *dev)
127 return gpio_request(S3C2410_GPF(2), "cable plugged");
130 static int rx1950_is_ac_online(void)
132 return !gpio_get_value(S3C2410_GPF(2));
135 static void power_supply_exit(struct device *dev)
137 gpio_free(S3C2410_GPF(2));
140 static char *rx1950_supplicants[] = {
144 static struct pda_power_pdata power_supply_info = {
145 .init = power_supply_init,
146 .is_ac_online = rx1950_is_ac_online,
147 .exit = power_supply_exit,
148 .supplied_to = rx1950_supplicants,
149 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
152 static struct resource power_supply_resources[] = {
155 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
156 IORESOURCE_IRQ_HIGHEDGE,
162 static struct platform_device power_supply = {
169 .resource = power_supply_resources,
170 .num_resources = ARRAY_SIZE(power_supply_resources),
173 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
174 { .volt = 4100, .cur = 156, .level = 100},
175 { .volt = 4050, .cur = 156, .level = 95},
176 { .volt = 4025, .cur = 141, .level = 90},
177 { .volt = 3995, .cur = 144, .level = 85},
178 { .volt = 3957, .cur = 162, .level = 80},
179 { .volt = 3931, .cur = 147, .level = 75},
180 { .volt = 3902, .cur = 147, .level = 70},
181 { .volt = 3863, .cur = 153, .level = 65},
182 { .volt = 3838, .cur = 150, .level = 60},
183 { .volt = 3800, .cur = 153, .level = 55},
184 { .volt = 3765, .cur = 153, .level = 50},
185 { .volt = 3748, .cur = 172, .level = 45},
186 { .volt = 3740, .cur = 153, .level = 40},
187 { .volt = 3714, .cur = 175, .level = 35},
188 { .volt = 3710, .cur = 156, .level = 30},
189 { .volt = 3963, .cur = 156, .level = 25},
190 { .volt = 3672, .cur = 178, .level = 20},
191 { .volt = 3651, .cur = 178, .level = 15},
192 { .volt = 3629, .cur = 178, .level = 10},
193 { .volt = 3612, .cur = 162, .level = 5},
194 { .volt = 3605, .cur = 162, .level = 0},
197 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
198 { .volt = 4200, .cur = 0, .level = 100},
199 { .volt = 4190, .cur = 0, .level = 99},
200 { .volt = 4178, .cur = 0, .level = 95},
201 { .volt = 4110, .cur = 0, .level = 70},
202 { .volt = 4076, .cur = 0, .level = 65},
203 { .volt = 4046, .cur = 0, .level = 60},
204 { .volt = 4021, .cur = 0, .level = 55},
205 { .volt = 3999, .cur = 0, .level = 50},
206 { .volt = 3982, .cur = 0, .level = 45},
207 { .volt = 3965, .cur = 0, .level = 40},
208 { .volt = 3957, .cur = 0, .level = 35},
209 { .volt = 3948, .cur = 0, .level = 30},
210 { .volt = 3936, .cur = 0, .level = 25},
211 { .volt = 3927, .cur = 0, .level = 20},
212 { .volt = 3906, .cur = 0, .level = 15},
213 { .volt = 3880, .cur = 0, .level = 10},
214 { .volt = 3829, .cur = 0, .level = 5},
215 { .volt = 3820, .cur = 0, .level = 0},
218 int rx1950_bat_init(void)
222 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
225 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
232 gpio_free(S3C2410_GPJ(2));
237 void rx1950_bat_exit(void)
239 gpio_free(S3C2410_GPJ(2));
240 gpio_free(S3C2410_GPJ(3));
243 void rx1950_enable_charger(void)
245 gpio_direction_output(S3C2410_GPJ(2), 1);
246 gpio_direction_output(S3C2410_GPJ(3), 1);
249 void rx1950_disable_charger(void)
251 gpio_direction_output(S3C2410_GPJ(2), 0);
252 gpio_direction_output(S3C2410_GPJ(3), 0);
255 DEFINE_SPINLOCK(rx1950_blink_spin);
257 static int rx1950_led_blink_set(unsigned gpio, int state,
258 unsigned long *delay_on, unsigned long *delay_off)
260 int blink_gpio, check_gpio;
264 blink_gpio = S3C2410_GPA(4);
265 check_gpio = S3C2410_GPA(3);
268 blink_gpio = S3C2410_GPA(3);
269 check_gpio = S3C2410_GPA(4);
276 if (delay_on && delay_off && !*delay_on && !*delay_off)
277 *delay_on = *delay_off = 500;
279 spin_lock(&rx1950_blink_spin);
282 case GPIO_LED_NO_BLINK_LOW:
283 case GPIO_LED_NO_BLINK_HIGH:
284 if (!gpio_get_value(check_gpio))
285 gpio_set_value(S3C2410_GPJ(6), 0);
286 gpio_set_value(blink_gpio, 0);
287 gpio_set_value(gpio, state);
290 gpio_set_value(gpio, 0);
291 gpio_set_value(S3C2410_GPJ(6), 1);
292 gpio_set_value(blink_gpio, 1);
296 spin_unlock(&rx1950_blink_spin);
301 static struct gpio_led rx1950_leds_desc[] = {
304 .default_trigger = "main-battery-full",
305 .gpio = S3C2410_GPA(6),
306 .retain_state_suspended = 1,
311 = "main-battery-charging-blink-full-solid",
312 .gpio = S3C2410_GPA(7),
313 .retain_state_suspended = 1,
317 .default_trigger = "rx1950-acx-mem",
318 .gpio = S3C2410_GPA(11),
319 .retain_state_suspended = 1,
323 static struct gpio_led_platform_data rx1950_leds_pdata = {
324 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
325 .leds = rx1950_leds_desc,
326 .gpio_blink_set = rx1950_led_blink_set,
329 static struct platform_device rx1950_leds = {
333 .platform_data = &rx1950_leds_pdata,
337 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
338 .init = rx1950_bat_init,
339 .exit = rx1950_bat_exit,
340 .enable_charger = rx1950_enable_charger,
341 .disable_charger = rx1950_disable_charger,
342 .gpio_charge_finished = S3C2410_GPF(3),
343 .lut_noac = bat_lut_noac,
344 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
345 .lut_acin = bat_lut_acin,
346 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
348 .current_channel = 1,
350 .current_mult = 2900,
351 .internal_impedance = 200,
354 static struct platform_device rx1950_battery = {
355 .name = "s3c-adc-battery",
358 .parent = &s3c_device_adc.dev,
359 .platform_data = &rx1950_bat_cfg,
363 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
364 .displays = &rx1950_display,
366 .default_display = 0,
369 .gpccon = 0xaa9556a9,
370 .gpccon_mask = 0xffc003fc,
372 .gpcup_mask = 0xffffffff,
374 .gpdcon = 0xaa90aaa1,
375 .gpdcon_mask = 0xffc0fff0,
377 .gpdup_mask = 0xffffffff,
381 static struct pwm_device *lcd_pwm;
383 void rx1950_lcd_power(int enable)
387 if (enabled == enable)
391 /* GPC11-GPC15->OUTPUT */
392 for (i = 11; i < 16; i++)
393 gpio_direction_output(S3C2410_GPC(i), 1);
395 /* Wait a bit here... */
398 /* GPD2-GPD7->OUTPUT */
399 /* GPD11-GPD15->OUTPUT */
400 /* GPD2-GPD7->1, GPD11-GPD15->1 */
401 for (i = 2; i < 8; i++)
402 gpio_direction_output(S3C2410_GPD(i), 1);
403 for (i = 11; i < 16; i++)
404 gpio_direction_output(S3C2410_GPD(i), 1);
406 /* Wait a bit here...*/
409 /* GPB0->OUTPUT, GPB0->0 */
410 gpio_direction_output(S3C2410_GPB(0), 0);
412 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
413 for (i = 1; i < 5; i++)
414 gpio_direction_output(S3C2410_GPC(i), 0);
417 for (i = 11; i < 16; i++)
418 gpio_direction_output(S3C2410_GPC(i), 0);
420 /* GPD15-GPD11->0, GPD2->GPD7->0 */
421 for (i = 11; i < 16; i++)
422 gpio_direction_output(S3C2410_GPD(i), 0);
424 for (i = 2; i < 8; i++)
425 gpio_direction_output(S3C2410_GPD(i), 0);
427 /* GPC6->0, GPC7->0, GPC5->0 */
428 gpio_direction_output(S3C2410_GPC(6), 0);
429 gpio_direction_output(S3C2410_GPC(7), 0);
430 gpio_direction_output(S3C2410_GPC(5), 0);
432 /* GPB1->OUTPUT, GPB1->0 */
433 gpio_direction_output(S3C2410_GPB(1), 0);
434 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
435 pwm_disable(lcd_pwm);
437 /* GPC0->0, GPC10->0 */
438 gpio_direction_output(S3C2410_GPC(0), 0);
439 gpio_direction_output(S3C2410_GPC(10), 0);
441 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
444 gpio_direction_output(S3C2410_GPC(0), 1);
445 gpio_direction_output(S3C2410_GPC(5), 1);
447 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
448 gpio_direction_output(S3C2410_GPC(7), 1);
450 for (i = 1; i < 5; i++)
451 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
453 for (i = 11; i < 16; i++)
454 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
456 for (i = 2; i < 8; i++)
457 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
459 for (i = 11; i < 16; i++)
460 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
462 gpio_direction_output(S3C2410_GPC(10), 1);
463 gpio_direction_output(S3C2410_GPC(6), 1);
468 static void rx1950_bl_power(int enable)
471 if (enabled == enable)
474 gpio_direction_output(S3C2410_GPB(0), 0);
476 /* LED driver need a "push" to power on */
477 gpio_direction_output(S3C2410_GPB(0), 1);
478 /* Warm up backlight for one period of PWM.
479 * Without this trick its almost impossible to
480 * enable backlight with low brightness value
483 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
488 static int rx1950_backlight_init(struct device *dev)
490 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
491 lcd_pwm = pwm_request(1, "RX1950 LCD");
492 if (IS_ERR(lcd_pwm)) {
493 dev_err(dev, "Unable to request PWM for LCD power!\n");
494 return PTR_ERR(lcd_pwm);
503 static void rx1950_backlight_exit(struct device *dev)
509 gpio_free(S3C2410_GPB(0));
513 static int rx1950_backlight_notify(struct device *dev, int brightness)
525 static struct platform_pwm_backlight_data rx1950_backlight_data = {
527 .max_brightness = 24,
529 .pwm_period_ns = 48000,
530 .init = rx1950_backlight_init,
531 .notify = rx1950_backlight_notify,
532 .exit = rx1950_backlight_exit,
535 static struct platform_device rx1950_backlight = {
536 .name = "pwm-backlight",
538 .parent = &s3c_device_timer[0].dev,
539 .platform_data = &rx1950_backlight_data,
543 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
545 switch (power_mode) {
547 gpio_direction_output(S3C2410_GPJ(1), 0);
551 gpio_direction_output(S3C2410_GPJ(1), 1);
558 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
559 .gpio_detect = S3C2410_GPF(5),
560 .gpio_wprotect = S3C2410_GPH(8),
561 .set_power = rx1950_set_mmc_power,
562 .ocr_avail = MMC_VDD_32_33,
565 static struct mtd_partition rx1950_nand_part[] = {
570 .mask_flags = MTD_WRITEABLE,
574 .offset = MTDPART_OFS_APPEND,
576 .mask_flags = MTD_WRITEABLE,
580 .offset = MTDPART_OFS_APPEND,
585 .name = "Filesystem",
586 .offset = MTDPART_OFS_APPEND,
587 .size = MTDPART_SIZ_FULL,
592 static struct s3c2410_nand_set rx1950_nand_sets[] = {
596 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
597 .partitions = rx1950_nand_part,
601 static struct s3c2410_platform_nand rx1950_nand_info = {
605 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
606 .sets = rx1950_nand_sets,
609 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
610 .vbus_pin = S3C2410_GPG(5),
611 .vbus_pin_inverted = 1,
612 .pullup_pin = S3C2410_GPJ(5),
615 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
618 .oversampling_shift = 3,
621 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
624 .gpio = S3C2410_GPF(0),
626 .desc = "Power button",
631 .gpio = S3C2410_GPF(7),
633 .desc = "Record button",
637 .gpio = S3C2410_GPG(0),
639 .desc = "Calendar button",
643 .gpio = S3C2410_GPG(2),
645 .desc = "Contacts button",
649 .gpio = S3C2410_GPG(3),
651 .desc = "Mail button",
655 .gpio = S3C2410_GPG(7),
657 .desc = "WLAN button",
661 .gpio = S3C2410_GPG(10),
663 .desc = "Left button",
667 .gpio = S3C2410_GPG(11),
669 .desc = "Right button",
673 .gpio = S3C2410_GPG(4),
679 .gpio = S3C2410_GPG(6),
681 .desc = "Down button",
685 .gpio = S3C2410_GPG(9),
691 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
692 .buttons = rx1950_gpio_keys_table,
693 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
696 static struct platform_device rx1950_device_gpiokeys = {
698 .dev.platform_data = &rx1950_gpio_keys_data,
701 static struct uda1380_platform_data uda1380_info = {
702 .gpio_power = S3C2410_GPJ(0),
703 .gpio_reset = S3C2410_GPD(0),
704 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
707 static struct i2c_board_info rx1950_i2c_devices[] = {
709 I2C_BOARD_INFO("uda1380", 0x1a),
710 .platform_data = &uda1380_info,
714 static struct platform_device *rx1950_devices[] __initdata = {
720 &s3c_device_usbgadget,
726 &s3c_device_timer[0],
727 &s3c_device_timer[1],
729 &rx1950_device_gpiokeys,
735 static struct clk *rx1950_clocks[] __initdata = {
740 static void __init rx1950_map_io(void)
742 s3c24xx_clkout0.parent = &clk_h;
743 s3c24xx_clkout1.parent = &clk_f;
745 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
747 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
748 s3c24xx_init_clocks(16934000);
749 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
753 #ifdef CONFIG_PM_H1940
754 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
760 static void __init rx1950_init_machine(void)
764 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
765 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
766 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
767 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
768 s3c_i2c0_set_platdata(NULL);
769 s3c_nand_set_platdata(&rx1950_nand_info);
771 /* Turn off suspend on both USB ports, and switch the
772 * selectable USB port to USB device mode. */
773 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
774 S3C2410_MISCCR_USBSUSPND0 |
775 S3C2410_MISCCR_USBSUSPND1, 0x0);
777 /* mmc power is disabled by default */
778 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
779 gpio_direction_output(S3C2410_GPJ(1), 0);
781 for (i = 0; i < 8; i++)
782 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
784 for (i = 10; i < 16; i++)
785 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
787 for (i = 2; i < 8; i++)
788 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
790 for (i = 11; i < 16; i++)
791 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
793 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
795 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
796 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
797 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
798 gpio_direction_output(S3C2410_GPA(3), 0);
799 gpio_direction_output(S3C2410_GPA(4), 0);
800 gpio_direction_output(S3C2410_GPJ(6), 0);
802 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
804 i2c_register_board_info(0, rx1950_i2c_devices,
805 ARRAY_SIZE(rx1950_i2c_devices));
808 /* H1940 and RX3715 need to reserve this for suspend */
809 static void __init rx1950_reserve(void)
811 memblock_reserve(0x30003000, 0x1000);
812 memblock_reserve(0x30081000, 0x1000);
815 MACHINE_START(RX1950, "HP iPAQ RX1950")
816 /* Maintainers: Vasily Khoruzhick */
817 .atag_offset = 0x100,
818 .map_io = rx1950_map_io,
819 .reserve = rx1950_reserve,
820 .init_irq = s3c24xx_init_irq,
821 .init_machine = rx1950_init_machine,
822 .timer = &s3c24xx_timer,