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/input.h>
25 #include <linux/gpio_keys.h>
26 #include <linux/device.h>
27 #include <linux/pda_power.h>
28 #include <linux/pwm_backlight.h>
29 #include <linux/pwm.h>
30 #include <linux/s3c_adc_battery.h>
31 #include <linux/leds.h>
32 #include <linux/i2c.h>
34 #include <linux/mtd/mtd.h>
35 #include <linux/mtd/partitions.h>
37 #include <linux/mmc/host.h>
39 #include <asm/mach-types.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
43 #include <linux/platform_data/i2c-s3c2410.h>
44 #include <linux/platform_data/mmc-s3cmci.h>
45 #include <linux/platform_data/mtd-nand-s3c2410.h>
46 #include <linux/platform_data/touchscreen-s3c2410.h>
47 #include <linux/platform_data/usb-s3c2410_udc.h>
49 #include <sound/uda1380.h>
52 #include <mach/regs-gpio.h>
53 #include <mach/regs-lcd.h>
54 #include <mach/gpio-samsung.h>
56 #include <plat/clock.h>
58 #include <plat/devs.h>
60 #include <plat/regs-serial.h>
61 #include <plat/samsung-time.h>
62 #include <plat/gpio-cfg.h>
67 #define LCD_PWM_PERIOD 192960
68 #define LCD_PWM_DUTY 127353
70 static struct map_desc rx1950_iodesc[] __initdata = {
73 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
80 .clk_sel = S3C2410_UCON_CLKSEL3,
88 .clk_sel = S3C2410_UCON_CLKSEL3,
97 .clk_sel = S3C2410_UCON_CLKSEL3,
101 static struct s3c2410fb_display rx1950_display = {
102 .type = S3C2410_LCDCON1_TFT,
117 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
118 S3C2410_LCDCON5_INVVCLK |
119 S3C2410_LCDCON5_INVVLINE |
120 S3C2410_LCDCON5_INVVFRAME |
121 S3C2410_LCDCON5_HWSWP |
127 static int power_supply_init(struct device *dev)
129 return gpio_request(S3C2410_GPF(2), "cable plugged");
132 static int rx1950_is_ac_online(void)
134 return !gpio_get_value(S3C2410_GPF(2));
137 static void power_supply_exit(struct device *dev)
139 gpio_free(S3C2410_GPF(2));
142 static char *rx1950_supplicants[] = {
146 static struct pda_power_pdata power_supply_info = {
147 .init = power_supply_init,
148 .is_ac_online = rx1950_is_ac_online,
149 .exit = power_supply_exit,
150 .supplied_to = rx1950_supplicants,
151 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
154 static struct resource power_supply_resources[] = {
155 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
156 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
159 static struct platform_device power_supply = {
166 .resource = power_supply_resources,
167 .num_resources = ARRAY_SIZE(power_supply_resources),
170 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
171 { .volt = 4100, .cur = 156, .level = 100},
172 { .volt = 4050, .cur = 156, .level = 95},
173 { .volt = 4025, .cur = 141, .level = 90},
174 { .volt = 3995, .cur = 144, .level = 85},
175 { .volt = 3957, .cur = 162, .level = 80},
176 { .volt = 3931, .cur = 147, .level = 75},
177 { .volt = 3902, .cur = 147, .level = 70},
178 { .volt = 3863, .cur = 153, .level = 65},
179 { .volt = 3838, .cur = 150, .level = 60},
180 { .volt = 3800, .cur = 153, .level = 55},
181 { .volt = 3765, .cur = 153, .level = 50},
182 { .volt = 3748, .cur = 172, .level = 45},
183 { .volt = 3740, .cur = 153, .level = 40},
184 { .volt = 3714, .cur = 175, .level = 35},
185 { .volt = 3710, .cur = 156, .level = 30},
186 { .volt = 3963, .cur = 156, .level = 25},
187 { .volt = 3672, .cur = 178, .level = 20},
188 { .volt = 3651, .cur = 178, .level = 15},
189 { .volt = 3629, .cur = 178, .level = 10},
190 { .volt = 3612, .cur = 162, .level = 5},
191 { .volt = 3605, .cur = 162, .level = 0},
194 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
195 { .volt = 4200, .cur = 0, .level = 100},
196 { .volt = 4190, .cur = 0, .level = 99},
197 { .volt = 4178, .cur = 0, .level = 95},
198 { .volt = 4110, .cur = 0, .level = 70},
199 { .volt = 4076, .cur = 0, .level = 65},
200 { .volt = 4046, .cur = 0, .level = 60},
201 { .volt = 4021, .cur = 0, .level = 55},
202 { .volt = 3999, .cur = 0, .level = 50},
203 { .volt = 3982, .cur = 0, .level = 45},
204 { .volt = 3965, .cur = 0, .level = 40},
205 { .volt = 3957, .cur = 0, .level = 35},
206 { .volt = 3948, .cur = 0, .level = 30},
207 { .volt = 3936, .cur = 0, .level = 25},
208 { .volt = 3927, .cur = 0, .level = 20},
209 { .volt = 3906, .cur = 0, .level = 15},
210 { .volt = 3880, .cur = 0, .level = 10},
211 { .volt = 3829, .cur = 0, .level = 5},
212 { .volt = 3820, .cur = 0, .level = 0},
215 static int rx1950_bat_init(void)
219 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
222 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
229 gpio_free(S3C2410_GPJ(2));
234 static void rx1950_bat_exit(void)
236 gpio_free(S3C2410_GPJ(2));
237 gpio_free(S3C2410_GPJ(3));
240 static void rx1950_enable_charger(void)
242 gpio_direction_output(S3C2410_GPJ(2), 1);
243 gpio_direction_output(S3C2410_GPJ(3), 1);
246 static void rx1950_disable_charger(void)
248 gpio_direction_output(S3C2410_GPJ(2), 0);
249 gpio_direction_output(S3C2410_GPJ(3), 0);
252 static DEFINE_SPINLOCK(rx1950_blink_spin);
254 static int rx1950_led_blink_set(unsigned gpio, int state,
255 unsigned long *delay_on, unsigned long *delay_off)
257 int blink_gpio, check_gpio;
261 blink_gpio = S3C2410_GPA(4);
262 check_gpio = S3C2410_GPA(3);
265 blink_gpio = S3C2410_GPA(3);
266 check_gpio = S3C2410_GPA(4);
273 if (delay_on && delay_off && !*delay_on && !*delay_off)
274 *delay_on = *delay_off = 500;
276 spin_lock(&rx1950_blink_spin);
279 case GPIO_LED_NO_BLINK_LOW:
280 case GPIO_LED_NO_BLINK_HIGH:
281 if (!gpio_get_value(check_gpio))
282 gpio_set_value(S3C2410_GPJ(6), 0);
283 gpio_set_value(blink_gpio, 0);
284 gpio_set_value(gpio, state);
287 gpio_set_value(gpio, 0);
288 gpio_set_value(S3C2410_GPJ(6), 1);
289 gpio_set_value(blink_gpio, 1);
293 spin_unlock(&rx1950_blink_spin);
298 static struct gpio_led rx1950_leds_desc[] = {
301 .default_trigger = "main-battery-full",
302 .gpio = S3C2410_GPA(6),
303 .retain_state_suspended = 1,
308 = "main-battery-charging-blink-full-solid",
309 .gpio = S3C2410_GPA(7),
310 .retain_state_suspended = 1,
314 .default_trigger = "rx1950-acx-mem",
315 .gpio = S3C2410_GPA(11),
316 .retain_state_suspended = 1,
320 static struct gpio_led_platform_data rx1950_leds_pdata = {
321 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
322 .leds = rx1950_leds_desc,
323 .gpio_blink_set = rx1950_led_blink_set,
326 static struct platform_device rx1950_leds = {
330 .platform_data = &rx1950_leds_pdata,
334 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
335 .init = rx1950_bat_init,
336 .exit = rx1950_bat_exit,
337 .enable_charger = rx1950_enable_charger,
338 .disable_charger = rx1950_disable_charger,
339 .gpio_charge_finished = S3C2410_GPF(3),
340 .lut_noac = bat_lut_noac,
341 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
342 .lut_acin = bat_lut_acin,
343 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
345 .current_channel = 1,
347 .current_mult = 2900,
348 .internal_impedance = 200,
351 static struct platform_device rx1950_battery = {
352 .name = "s3c-adc-battery",
355 .parent = &s3c_device_adc.dev,
356 .platform_data = &rx1950_bat_cfg,
360 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
361 .displays = &rx1950_display,
363 .default_display = 0,
366 .gpccon = 0xaa9556a9,
367 .gpccon_mask = 0xffc003fc,
369 .gpcup_mask = 0xffffffff,
371 .gpdcon = 0xaa90aaa1,
372 .gpdcon_mask = 0xffc0fff0,
374 .gpdup_mask = 0xffffffff,
378 static struct pwm_device *lcd_pwm;
380 static void rx1950_lcd_power(int enable)
384 if (enabled == enable)
388 /* GPC11-GPC15->OUTPUT */
389 for (i = 11; i < 16; i++)
390 gpio_direction_output(S3C2410_GPC(i), 1);
392 /* Wait a bit here... */
395 /* GPD2-GPD7->OUTPUT */
396 /* GPD11-GPD15->OUTPUT */
397 /* GPD2-GPD7->1, GPD11-GPD15->1 */
398 for (i = 2; i < 8; i++)
399 gpio_direction_output(S3C2410_GPD(i), 1);
400 for (i = 11; i < 16; i++)
401 gpio_direction_output(S3C2410_GPD(i), 1);
403 /* Wait a bit here...*/
406 /* GPB0->OUTPUT, GPB0->0 */
407 gpio_direction_output(S3C2410_GPB(0), 0);
409 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
410 for (i = 1; i < 5; i++)
411 gpio_direction_output(S3C2410_GPC(i), 0);
414 for (i = 11; i < 16; i++)
415 gpio_direction_output(S3C2410_GPC(i), 0);
417 /* GPD15-GPD11->0, GPD2->GPD7->0 */
418 for (i = 11; i < 16; i++)
419 gpio_direction_output(S3C2410_GPD(i), 0);
421 for (i = 2; i < 8; i++)
422 gpio_direction_output(S3C2410_GPD(i), 0);
424 /* GPC6->0, GPC7->0, GPC5->0 */
425 gpio_direction_output(S3C2410_GPC(6), 0);
426 gpio_direction_output(S3C2410_GPC(7), 0);
427 gpio_direction_output(S3C2410_GPC(5), 0);
429 /* GPB1->OUTPUT, GPB1->0 */
430 gpio_direction_output(S3C2410_GPB(1), 0);
431 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
432 pwm_disable(lcd_pwm);
434 /* GPC0->0, GPC10->0 */
435 gpio_direction_output(S3C2410_GPC(0), 0);
436 gpio_direction_output(S3C2410_GPC(10), 0);
438 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
441 gpio_direction_output(S3C2410_GPC(0), 1);
442 gpio_direction_output(S3C2410_GPC(5), 1);
444 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
445 gpio_direction_output(S3C2410_GPC(7), 1);
447 for (i = 1; i < 5; i++)
448 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
450 for (i = 11; i < 16; i++)
451 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
453 for (i = 2; i < 8; i++)
454 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
456 for (i = 11; i < 16; i++)
457 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
459 gpio_direction_output(S3C2410_GPC(10), 1);
460 gpio_direction_output(S3C2410_GPC(6), 1);
465 static void rx1950_bl_power(int enable)
468 if (enabled == enable)
471 gpio_direction_output(S3C2410_GPB(0), 0);
473 /* LED driver need a "push" to power on */
474 gpio_direction_output(S3C2410_GPB(0), 1);
475 /* Warm up backlight for one period of PWM.
476 * Without this trick its almost impossible to
477 * enable backlight with low brightness value
480 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
485 static int rx1950_backlight_init(struct device *dev)
487 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
488 lcd_pwm = pwm_request(1, "RX1950 LCD");
489 if (IS_ERR(lcd_pwm)) {
490 dev_err(dev, "Unable to request PWM for LCD power!\n");
491 return PTR_ERR(lcd_pwm);
500 static void rx1950_backlight_exit(struct device *dev)
506 gpio_free(S3C2410_GPB(0));
510 static int rx1950_backlight_notify(struct device *dev, int brightness)
522 static struct platform_pwm_backlight_data rx1950_backlight_data = {
524 .max_brightness = 24,
526 .pwm_period_ns = 48000,
528 .init = rx1950_backlight_init,
529 .notify = rx1950_backlight_notify,
530 .exit = rx1950_backlight_exit,
533 static struct platform_device rx1950_backlight = {
534 .name = "pwm-backlight",
536 .parent = &samsung_device_pwm.dev,
537 .platform_data = &rx1950_backlight_data,
541 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
543 switch (power_mode) {
545 gpio_direction_output(S3C2410_GPJ(1), 0);
549 gpio_direction_output(S3C2410_GPJ(1), 1);
556 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
557 .gpio_detect = S3C2410_GPF(5),
558 .gpio_wprotect = S3C2410_GPH(8),
559 .set_power = rx1950_set_mmc_power,
560 .ocr_avail = MMC_VDD_32_33,
563 static struct mtd_partition rx1950_nand_part[] = {
568 .mask_flags = MTD_WRITEABLE,
572 .offset = MTDPART_OFS_APPEND,
574 .mask_flags = MTD_WRITEABLE,
578 .offset = MTDPART_OFS_APPEND,
583 .name = "Filesystem",
584 .offset = MTDPART_OFS_APPEND,
585 .size = MTDPART_SIZ_FULL,
590 static struct s3c2410_nand_set rx1950_nand_sets[] = {
594 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
595 .partitions = rx1950_nand_part,
599 static struct s3c2410_platform_nand rx1950_nand_info = {
603 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
604 .sets = rx1950_nand_sets,
607 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
608 .vbus_pin = S3C2410_GPG(5),
609 .vbus_pin_inverted = 1,
610 .pullup_pin = S3C2410_GPJ(5),
613 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
616 .oversampling_shift = 3,
619 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
622 .gpio = S3C2410_GPF(0),
624 .desc = "Power button",
629 .gpio = S3C2410_GPF(7),
631 .desc = "Record button",
635 .gpio = S3C2410_GPG(0),
637 .desc = "Calendar button",
641 .gpio = S3C2410_GPG(2),
643 .desc = "Contacts button",
647 .gpio = S3C2410_GPG(3),
649 .desc = "Mail button",
653 .gpio = S3C2410_GPG(7),
655 .desc = "WLAN button",
659 .gpio = S3C2410_GPG(10),
661 .desc = "Left button",
665 .gpio = S3C2410_GPG(11),
667 .desc = "Right button",
671 .gpio = S3C2410_GPG(4),
677 .gpio = S3C2410_GPG(6),
679 .desc = "Down button",
683 .gpio = S3C2410_GPG(9),
689 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
690 .buttons = rx1950_gpio_keys_table,
691 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
694 static struct platform_device rx1950_device_gpiokeys = {
696 .dev.platform_data = &rx1950_gpio_keys_data,
699 static struct uda1380_platform_data uda1380_info = {
700 .gpio_power = S3C2410_GPJ(0),
701 .gpio_reset = S3C2410_GPD(0),
702 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
705 static struct i2c_board_info rx1950_i2c_devices[] = {
707 I2C_BOARD_INFO("uda1380", 0x1a),
708 .platform_data = &uda1380_info,
712 static struct platform_device *rx1950_devices[] __initdata = {
717 &s3c_device_usbgadget,
725 &rx1950_device_gpiokeys,
731 static struct clk *rx1950_clocks[] __initdata = {
736 static void __init rx1950_map_io(void)
738 s3c24xx_clkout0.parent = &clk_h;
739 s3c24xx_clkout1.parent = &clk_f;
741 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
743 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
744 s3c24xx_init_clocks(16934000);
745 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
746 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
750 #ifdef CONFIG_PM_H1940
751 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
757 static void __init rx1950_init_machine(void)
761 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
762 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
763 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
764 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
765 s3c_i2c0_set_platdata(NULL);
766 s3c_nand_set_platdata(&rx1950_nand_info);
768 /* Turn off suspend on both USB ports, and switch the
769 * selectable USB port to USB device mode. */
770 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
771 S3C2410_MISCCR_USBSUSPND0 |
772 S3C2410_MISCCR_USBSUSPND1, 0x0);
774 /* mmc power is disabled by default */
775 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
776 gpio_direction_output(S3C2410_GPJ(1), 0);
778 for (i = 0; i < 8; i++)
779 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
781 for (i = 10; i < 16; i++)
782 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
784 for (i = 2; i < 8; i++)
785 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
787 for (i = 11; i < 16; i++)
788 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
790 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
792 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
793 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
794 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
795 gpio_direction_output(S3C2410_GPA(3), 0);
796 gpio_direction_output(S3C2410_GPA(4), 0);
797 gpio_direction_output(S3C2410_GPJ(6), 0);
799 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
801 i2c_register_board_info(0, rx1950_i2c_devices,
802 ARRAY_SIZE(rx1950_i2c_devices));
805 /* H1940 and RX3715 need to reserve this for suspend */
806 static void __init rx1950_reserve(void)
808 memblock_reserve(0x30003000, 0x1000);
809 memblock_reserve(0x30081000, 0x1000);
812 MACHINE_START(RX1950, "HP iPAQ RX1950")
813 /* Maintainers: Vasily Khoruzhick */
814 .atag_offset = 0x100,
815 .map_io = rx1950_map_io,
816 .reserve = rx1950_reserve,
817 .init_irq = s3c2442_init_irq,
818 .init_machine = rx1950_init_machine,
819 .init_time = samsung_timer_init,
820 .restart = s3c244x_restart,