2 * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
3 * Copyright (c) 2007-2010 Vasily Khoruzhick
5 * based on smdk2440 written by Ben Dooks
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.
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/list.h>
17 #include <linux/memblock.h>
18 #include <linux/delay.h>
19 #include <linux/timer.h>
20 #include <linux/init.h>
21 #include <linux/gpio.h>
22 #include <linux/platform_device.h>
23 #include <linux/serial_core.h>
24 #include <linux/serial_s3c.h>
25 #include <linux/input.h>
26 #include <linux/gpio_keys.h>
27 #include <linux/device.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-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/map.h>
44 #include <linux/platform_data/i2c-s3c2410.h>
45 #include <linux/platform_data/mmc-s3cmci.h>
46 #include <linux/platform_data/mtd-nand-s3c2410.h>
47 #include <linux/platform_data/touchscreen-s3c2410.h>
48 #include <linux/platform_data/usb-s3c2410_udc.h>
50 #include <sound/uda1380.h>
53 #include <mach/regs-gpio.h>
54 #include <mach/regs-lcd.h>
55 #include <mach/gpio-samsung.h>
58 #include <plat/devs.h>
60 #include <plat/samsung-time.h>
61 #include <plat/gpio-cfg.h>
66 #define LCD_PWM_PERIOD 192960
67 #define LCD_PWM_DUTY 127353
69 static struct map_desc rx1950_iodesc[] __initdata = {
72 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
79 .clk_sel = S3C2410_UCON_CLKSEL3,
87 .clk_sel = S3C2410_UCON_CLKSEL3,
96 .clk_sel = S3C2410_UCON_CLKSEL3,
100 static struct s3c2410fb_display rx1950_display = {
101 .type = S3C2410_LCDCON1_TFT,
116 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
117 S3C2410_LCDCON5_INVVCLK |
118 S3C2410_LCDCON5_INVVLINE |
119 S3C2410_LCDCON5_INVVFRAME |
120 S3C2410_LCDCON5_HWSWP |
126 static int power_supply_init(struct device *dev)
128 return gpio_request(S3C2410_GPF(2), "cable plugged");
131 static int rx1950_is_ac_online(void)
133 return !gpio_get_value(S3C2410_GPF(2));
136 static void power_supply_exit(struct device *dev)
138 gpio_free(S3C2410_GPF(2));
141 static char *rx1950_supplicants[] = {
145 static struct pda_power_pdata power_supply_info = {
146 .init = power_supply_init,
147 .is_ac_online = rx1950_is_ac_online,
148 .exit = power_supply_exit,
149 .supplied_to = rx1950_supplicants,
150 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
153 static struct resource power_supply_resources[] = {
154 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
155 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
158 static struct platform_device power_supply = {
165 .resource = power_supply_resources,
166 .num_resources = ARRAY_SIZE(power_supply_resources),
169 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
170 { .volt = 4100, .cur = 156, .level = 100},
171 { .volt = 4050, .cur = 156, .level = 95},
172 { .volt = 4025, .cur = 141, .level = 90},
173 { .volt = 3995, .cur = 144, .level = 85},
174 { .volt = 3957, .cur = 162, .level = 80},
175 { .volt = 3931, .cur = 147, .level = 75},
176 { .volt = 3902, .cur = 147, .level = 70},
177 { .volt = 3863, .cur = 153, .level = 65},
178 { .volt = 3838, .cur = 150, .level = 60},
179 { .volt = 3800, .cur = 153, .level = 55},
180 { .volt = 3765, .cur = 153, .level = 50},
181 { .volt = 3748, .cur = 172, .level = 45},
182 { .volt = 3740, .cur = 153, .level = 40},
183 { .volt = 3714, .cur = 175, .level = 35},
184 { .volt = 3710, .cur = 156, .level = 30},
185 { .volt = 3963, .cur = 156, .level = 25},
186 { .volt = 3672, .cur = 178, .level = 20},
187 { .volt = 3651, .cur = 178, .level = 15},
188 { .volt = 3629, .cur = 178, .level = 10},
189 { .volt = 3612, .cur = 162, .level = 5},
190 { .volt = 3605, .cur = 162, .level = 0},
193 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
194 { .volt = 4200, .cur = 0, .level = 100},
195 { .volt = 4190, .cur = 0, .level = 99},
196 { .volt = 4178, .cur = 0, .level = 95},
197 { .volt = 4110, .cur = 0, .level = 70},
198 { .volt = 4076, .cur = 0, .level = 65},
199 { .volt = 4046, .cur = 0, .level = 60},
200 { .volt = 4021, .cur = 0, .level = 55},
201 { .volt = 3999, .cur = 0, .level = 50},
202 { .volt = 3982, .cur = 0, .level = 45},
203 { .volt = 3965, .cur = 0, .level = 40},
204 { .volt = 3957, .cur = 0, .level = 35},
205 { .volt = 3948, .cur = 0, .level = 30},
206 { .volt = 3936, .cur = 0, .level = 25},
207 { .volt = 3927, .cur = 0, .level = 20},
208 { .volt = 3906, .cur = 0, .level = 15},
209 { .volt = 3880, .cur = 0, .level = 10},
210 { .volt = 3829, .cur = 0, .level = 5},
211 { .volt = 3820, .cur = 0, .level = 0},
214 static int rx1950_bat_init(void)
218 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
221 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
228 gpio_free(S3C2410_GPJ(2));
233 static void rx1950_bat_exit(void)
235 gpio_free(S3C2410_GPJ(2));
236 gpio_free(S3C2410_GPJ(3));
239 static void rx1950_enable_charger(void)
241 gpio_direction_output(S3C2410_GPJ(2), 1);
242 gpio_direction_output(S3C2410_GPJ(3), 1);
245 static void rx1950_disable_charger(void)
247 gpio_direction_output(S3C2410_GPJ(2), 0);
248 gpio_direction_output(S3C2410_GPJ(3), 0);
251 static DEFINE_SPINLOCK(rx1950_blink_spin);
253 static int rx1950_led_blink_set(unsigned gpio, int state,
254 unsigned long *delay_on, unsigned long *delay_off)
256 int blink_gpio, check_gpio;
260 blink_gpio = S3C2410_GPA(4);
261 check_gpio = S3C2410_GPA(3);
264 blink_gpio = S3C2410_GPA(3);
265 check_gpio = S3C2410_GPA(4);
272 if (delay_on && delay_off && !*delay_on && !*delay_off)
273 *delay_on = *delay_off = 500;
275 spin_lock(&rx1950_blink_spin);
278 case GPIO_LED_NO_BLINK_LOW:
279 case GPIO_LED_NO_BLINK_HIGH:
280 if (!gpio_get_value(check_gpio))
281 gpio_set_value(S3C2410_GPJ(6), 0);
282 gpio_set_value(blink_gpio, 0);
283 gpio_set_value(gpio, state);
286 gpio_set_value(gpio, 0);
287 gpio_set_value(S3C2410_GPJ(6), 1);
288 gpio_set_value(blink_gpio, 1);
292 spin_unlock(&rx1950_blink_spin);
297 static struct gpio_led rx1950_leds_desc[] = {
300 .default_trigger = "main-battery-full",
301 .gpio = S3C2410_GPA(6),
302 .retain_state_suspended = 1,
307 = "main-battery-charging-blink-full-solid",
308 .gpio = S3C2410_GPA(7),
309 .retain_state_suspended = 1,
313 .default_trigger = "rx1950-acx-mem",
314 .gpio = S3C2410_GPA(11),
315 .retain_state_suspended = 1,
319 static struct gpio_led_platform_data rx1950_leds_pdata = {
320 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
321 .leds = rx1950_leds_desc,
322 .gpio_blink_set = rx1950_led_blink_set,
325 static struct platform_device rx1950_leds = {
329 .platform_data = &rx1950_leds_pdata,
333 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
334 .init = rx1950_bat_init,
335 .exit = rx1950_bat_exit,
336 .enable_charger = rx1950_enable_charger,
337 .disable_charger = rx1950_disable_charger,
338 .gpio_charge_finished = S3C2410_GPF(3),
339 .lut_noac = bat_lut_noac,
340 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
341 .lut_acin = bat_lut_acin,
342 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
344 .current_channel = 1,
346 .current_mult = 2900,
347 .internal_impedance = 200,
350 static struct platform_device rx1950_battery = {
351 .name = "s3c-adc-battery",
354 .parent = &s3c_device_adc.dev,
355 .platform_data = &rx1950_bat_cfg,
359 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
360 .displays = &rx1950_display,
362 .default_display = 0,
365 .gpccon = 0xaa9556a9,
366 .gpccon_mask = 0xffc003fc,
368 .gpcup_mask = 0xffffffff,
370 .gpdcon = 0xaa90aaa1,
371 .gpdcon_mask = 0xffc0fff0,
373 .gpdup_mask = 0xffffffff,
377 static struct pwm_device *lcd_pwm;
379 static void rx1950_lcd_power(int enable)
383 if (enabled == enable)
387 /* GPC11-GPC15->OUTPUT */
388 for (i = 11; i < 16; i++)
389 gpio_direction_output(S3C2410_GPC(i), 1);
391 /* Wait a bit here... */
394 /* GPD2-GPD7->OUTPUT */
395 /* GPD11-GPD15->OUTPUT */
396 /* GPD2-GPD7->1, GPD11-GPD15->1 */
397 for (i = 2; i < 8; i++)
398 gpio_direction_output(S3C2410_GPD(i), 1);
399 for (i = 11; i < 16; i++)
400 gpio_direction_output(S3C2410_GPD(i), 1);
402 /* Wait a bit here...*/
405 /* GPB0->OUTPUT, GPB0->0 */
406 gpio_direction_output(S3C2410_GPB(0), 0);
408 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
409 for (i = 1; i < 5; i++)
410 gpio_direction_output(S3C2410_GPC(i), 0);
413 for (i = 11; i < 16; i++)
414 gpio_direction_output(S3C2410_GPC(i), 0);
416 /* GPD15-GPD11->0, GPD2->GPD7->0 */
417 for (i = 11; i < 16; i++)
418 gpio_direction_output(S3C2410_GPD(i), 0);
420 for (i = 2; i < 8; i++)
421 gpio_direction_output(S3C2410_GPD(i), 0);
423 /* GPC6->0, GPC7->0, GPC5->0 */
424 gpio_direction_output(S3C2410_GPC(6), 0);
425 gpio_direction_output(S3C2410_GPC(7), 0);
426 gpio_direction_output(S3C2410_GPC(5), 0);
428 /* GPB1->OUTPUT, GPB1->0 */
429 gpio_direction_output(S3C2410_GPB(1), 0);
430 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
431 pwm_disable(lcd_pwm);
433 /* GPC0->0, GPC10->0 */
434 gpio_direction_output(S3C2410_GPC(0), 0);
435 gpio_direction_output(S3C2410_GPC(10), 0);
437 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
440 gpio_direction_output(S3C2410_GPC(0), 1);
441 gpio_direction_output(S3C2410_GPC(5), 1);
443 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
444 gpio_direction_output(S3C2410_GPC(7), 1);
446 for (i = 1; i < 5; i++)
447 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
449 for (i = 11; i < 16; i++)
450 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
452 for (i = 2; i < 8; i++)
453 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
455 for (i = 11; i < 16; i++)
456 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
458 gpio_direction_output(S3C2410_GPC(10), 1);
459 gpio_direction_output(S3C2410_GPC(6), 1);
464 static void rx1950_bl_power(int enable)
467 if (enabled == enable)
470 gpio_direction_output(S3C2410_GPB(0), 0);
472 /* LED driver need a "push" to power on */
473 gpio_direction_output(S3C2410_GPB(0), 1);
474 /* Warm up backlight for one period of PWM.
475 * Without this trick its almost impossible to
476 * enable backlight with low brightness value
479 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
484 static int rx1950_backlight_init(struct device *dev)
486 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
487 lcd_pwm = pwm_request(1, "RX1950 LCD");
488 if (IS_ERR(lcd_pwm)) {
489 dev_err(dev, "Unable to request PWM for LCD power!\n");
490 return PTR_ERR(lcd_pwm);
499 static void rx1950_backlight_exit(struct device *dev)
505 gpio_free(S3C2410_GPB(0));
509 static int rx1950_backlight_notify(struct device *dev, int brightness)
521 static struct platform_pwm_backlight_data rx1950_backlight_data = {
523 .max_brightness = 24,
525 .pwm_period_ns = 48000,
527 .init = rx1950_backlight_init,
528 .notify = rx1950_backlight_notify,
529 .exit = rx1950_backlight_exit,
532 static struct platform_device rx1950_backlight = {
533 .name = "pwm-backlight",
535 .parent = &samsung_device_pwm.dev,
536 .platform_data = &rx1950_backlight_data,
540 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
542 switch (power_mode) {
544 gpio_direction_output(S3C2410_GPJ(1), 0);
548 gpio_direction_output(S3C2410_GPJ(1), 1);
555 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
556 .gpio_detect = S3C2410_GPF(5),
557 .gpio_wprotect = S3C2410_GPH(8),
558 .set_power = rx1950_set_mmc_power,
559 .ocr_avail = MMC_VDD_32_33,
562 static struct mtd_partition rx1950_nand_part[] = {
567 .mask_flags = MTD_WRITEABLE,
571 .offset = MTDPART_OFS_APPEND,
573 .mask_flags = MTD_WRITEABLE,
577 .offset = MTDPART_OFS_APPEND,
582 .name = "Filesystem",
583 .offset = MTDPART_OFS_APPEND,
584 .size = MTDPART_SIZ_FULL,
589 static struct s3c2410_nand_set rx1950_nand_sets[] = {
593 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
594 .partitions = rx1950_nand_part,
598 static struct s3c2410_platform_nand rx1950_nand_info = {
602 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
603 .sets = rx1950_nand_sets,
606 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
607 .vbus_pin = S3C2410_GPG(5),
608 .vbus_pin_inverted = 1,
609 .pullup_pin = S3C2410_GPJ(5),
612 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
615 .oversampling_shift = 3,
618 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
621 .gpio = S3C2410_GPF(0),
623 .desc = "Power button",
628 .gpio = S3C2410_GPF(7),
630 .desc = "Record button",
634 .gpio = S3C2410_GPG(0),
636 .desc = "Calendar button",
640 .gpio = S3C2410_GPG(2),
642 .desc = "Contacts button",
646 .gpio = S3C2410_GPG(3),
648 .desc = "Mail button",
652 .gpio = S3C2410_GPG(7),
654 .desc = "WLAN button",
658 .gpio = S3C2410_GPG(10),
660 .desc = "Left button",
664 .gpio = S3C2410_GPG(11),
666 .desc = "Right button",
670 .gpio = S3C2410_GPG(4),
676 .gpio = S3C2410_GPG(6),
678 .desc = "Down button",
682 .gpio = S3C2410_GPG(9),
688 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
689 .buttons = rx1950_gpio_keys_table,
690 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
693 static struct platform_device rx1950_device_gpiokeys = {
695 .dev.platform_data = &rx1950_gpio_keys_data,
698 static struct uda1380_platform_data uda1380_info = {
699 .gpio_power = S3C2410_GPJ(0),
700 .gpio_reset = S3C2410_GPD(0),
701 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
704 static struct i2c_board_info rx1950_i2c_devices[] = {
706 I2C_BOARD_INFO("uda1380", 0x1a),
707 .platform_data = &uda1380_info,
711 static struct platform_device *rx1950_devices[] __initdata = {
712 &s3c2410_device_dclk,
717 &s3c_device_usbgadget,
725 &rx1950_device_gpiokeys,
731 static void __init rx1950_map_io(void)
733 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
734 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
735 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
739 #ifdef CONFIG_PM_H1940
740 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
746 static void __init rx1950_init_time(void)
748 s3c2442_init_clocks(16934000);
749 samsung_timer_init();
752 static void __init rx1950_init_machine(void)
756 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
757 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
758 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
759 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
760 s3c_i2c0_set_platdata(NULL);
761 s3c_nand_set_platdata(&rx1950_nand_info);
763 /* Turn off suspend on both USB ports, and switch the
764 * selectable USB port to USB device mode. */
765 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
766 S3C2410_MISCCR_USBSUSPND0 |
767 S3C2410_MISCCR_USBSUSPND1, 0x0);
769 /* mmc power is disabled by default */
770 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
771 gpio_direction_output(S3C2410_GPJ(1), 0);
773 for (i = 0; i < 8; i++)
774 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
776 for (i = 10; i < 16; i++)
777 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
779 for (i = 2; i < 8; i++)
780 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
782 for (i = 11; i < 16; i++)
783 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
785 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
787 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
788 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
789 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
790 gpio_direction_output(S3C2410_GPA(3), 0);
791 gpio_direction_output(S3C2410_GPA(4), 0);
792 gpio_direction_output(S3C2410_GPJ(6), 0);
794 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
796 i2c_register_board_info(0, rx1950_i2c_devices,
797 ARRAY_SIZE(rx1950_i2c_devices));
800 /* H1940 and RX3715 need to reserve this for suspend */
801 static void __init rx1950_reserve(void)
803 memblock_reserve(0x30003000, 0x1000);
804 memblock_reserve(0x30081000, 0x1000);
807 MACHINE_START(RX1950, "HP iPAQ RX1950")
808 /* Maintainers: Vasily Khoruzhick */
809 .atag_offset = 0x100,
810 .map_io = rx1950_map_io,
811 .reserve = rx1950_reserve,
812 .init_irq = s3c2442_init_irq,
813 .init_machine = rx1950_init_machine,
814 .init_time = rx1950_init_time,