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>
55 #include <plat/clock.h>
57 #include <plat/devs.h>
59 #include <plat/regs-serial.h>
60 #include <plat/samsung-time.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[] = {
153 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
154 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
157 static struct platform_device power_supply = {
164 .resource = power_supply_resources,
165 .num_resources = ARRAY_SIZE(power_supply_resources),
168 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
169 { .volt = 4100, .cur = 156, .level = 100},
170 { .volt = 4050, .cur = 156, .level = 95},
171 { .volt = 4025, .cur = 141, .level = 90},
172 { .volt = 3995, .cur = 144, .level = 85},
173 { .volt = 3957, .cur = 162, .level = 80},
174 { .volt = 3931, .cur = 147, .level = 75},
175 { .volt = 3902, .cur = 147, .level = 70},
176 { .volt = 3863, .cur = 153, .level = 65},
177 { .volt = 3838, .cur = 150, .level = 60},
178 { .volt = 3800, .cur = 153, .level = 55},
179 { .volt = 3765, .cur = 153, .level = 50},
180 { .volt = 3748, .cur = 172, .level = 45},
181 { .volt = 3740, .cur = 153, .level = 40},
182 { .volt = 3714, .cur = 175, .level = 35},
183 { .volt = 3710, .cur = 156, .level = 30},
184 { .volt = 3963, .cur = 156, .level = 25},
185 { .volt = 3672, .cur = 178, .level = 20},
186 { .volt = 3651, .cur = 178, .level = 15},
187 { .volt = 3629, .cur = 178, .level = 10},
188 { .volt = 3612, .cur = 162, .level = 5},
189 { .volt = 3605, .cur = 162, .level = 0},
192 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
193 { .volt = 4200, .cur = 0, .level = 100},
194 { .volt = 4190, .cur = 0, .level = 99},
195 { .volt = 4178, .cur = 0, .level = 95},
196 { .volt = 4110, .cur = 0, .level = 70},
197 { .volt = 4076, .cur = 0, .level = 65},
198 { .volt = 4046, .cur = 0, .level = 60},
199 { .volt = 4021, .cur = 0, .level = 55},
200 { .volt = 3999, .cur = 0, .level = 50},
201 { .volt = 3982, .cur = 0, .level = 45},
202 { .volt = 3965, .cur = 0, .level = 40},
203 { .volt = 3957, .cur = 0, .level = 35},
204 { .volt = 3948, .cur = 0, .level = 30},
205 { .volt = 3936, .cur = 0, .level = 25},
206 { .volt = 3927, .cur = 0, .level = 20},
207 { .volt = 3906, .cur = 0, .level = 15},
208 { .volt = 3880, .cur = 0, .level = 10},
209 { .volt = 3829, .cur = 0, .level = 5},
210 { .volt = 3820, .cur = 0, .level = 0},
213 static int rx1950_bat_init(void)
217 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
220 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
227 gpio_free(S3C2410_GPJ(2));
232 static void rx1950_bat_exit(void)
234 gpio_free(S3C2410_GPJ(2));
235 gpio_free(S3C2410_GPJ(3));
238 static void rx1950_enable_charger(void)
240 gpio_direction_output(S3C2410_GPJ(2), 1);
241 gpio_direction_output(S3C2410_GPJ(3), 1);
244 static void rx1950_disable_charger(void)
246 gpio_direction_output(S3C2410_GPJ(2), 0);
247 gpio_direction_output(S3C2410_GPJ(3), 0);
250 static DEFINE_SPINLOCK(rx1950_blink_spin);
252 static int rx1950_led_blink_set(unsigned gpio, int state,
253 unsigned long *delay_on, unsigned long *delay_off)
255 int blink_gpio, check_gpio;
259 blink_gpio = S3C2410_GPA(4);
260 check_gpio = S3C2410_GPA(3);
263 blink_gpio = S3C2410_GPA(3);
264 check_gpio = S3C2410_GPA(4);
271 if (delay_on && delay_off && !*delay_on && !*delay_off)
272 *delay_on = *delay_off = 500;
274 spin_lock(&rx1950_blink_spin);
277 case GPIO_LED_NO_BLINK_LOW:
278 case GPIO_LED_NO_BLINK_HIGH:
279 if (!gpio_get_value(check_gpio))
280 gpio_set_value(S3C2410_GPJ(6), 0);
281 gpio_set_value(blink_gpio, 0);
282 gpio_set_value(gpio, state);
285 gpio_set_value(gpio, 0);
286 gpio_set_value(S3C2410_GPJ(6), 1);
287 gpio_set_value(blink_gpio, 1);
291 spin_unlock(&rx1950_blink_spin);
296 static struct gpio_led rx1950_leds_desc[] = {
299 .default_trigger = "main-battery-full",
300 .gpio = S3C2410_GPA(6),
301 .retain_state_suspended = 1,
306 = "main-battery-charging-blink-full-solid",
307 .gpio = S3C2410_GPA(7),
308 .retain_state_suspended = 1,
312 .default_trigger = "rx1950-acx-mem",
313 .gpio = S3C2410_GPA(11),
314 .retain_state_suspended = 1,
318 static struct gpio_led_platform_data rx1950_leds_pdata = {
319 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
320 .leds = rx1950_leds_desc,
321 .gpio_blink_set = rx1950_led_blink_set,
324 static struct platform_device rx1950_leds = {
328 .platform_data = &rx1950_leds_pdata,
332 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
333 .init = rx1950_bat_init,
334 .exit = rx1950_bat_exit,
335 .enable_charger = rx1950_enable_charger,
336 .disable_charger = rx1950_disable_charger,
337 .gpio_charge_finished = S3C2410_GPF(3),
338 .lut_noac = bat_lut_noac,
339 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
340 .lut_acin = bat_lut_acin,
341 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
343 .current_channel = 1,
345 .current_mult = 2900,
346 .internal_impedance = 200,
349 static struct platform_device rx1950_battery = {
350 .name = "s3c-adc-battery",
353 .parent = &s3c_device_adc.dev,
354 .platform_data = &rx1950_bat_cfg,
358 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
359 .displays = &rx1950_display,
361 .default_display = 0,
364 .gpccon = 0xaa9556a9,
365 .gpccon_mask = 0xffc003fc,
367 .gpcup_mask = 0xffffffff,
369 .gpdcon = 0xaa90aaa1,
370 .gpdcon_mask = 0xffc0fff0,
372 .gpdup_mask = 0xffffffff,
376 static struct pwm_device *lcd_pwm;
378 static void rx1950_lcd_power(int enable)
382 if (enabled == enable)
386 /* GPC11-GPC15->OUTPUT */
387 for (i = 11; i < 16; i++)
388 gpio_direction_output(S3C2410_GPC(i), 1);
390 /* Wait a bit here... */
393 /* GPD2-GPD7->OUTPUT */
394 /* GPD11-GPD15->OUTPUT */
395 /* GPD2-GPD7->1, GPD11-GPD15->1 */
396 for (i = 2; i < 8; i++)
397 gpio_direction_output(S3C2410_GPD(i), 1);
398 for (i = 11; i < 16; i++)
399 gpio_direction_output(S3C2410_GPD(i), 1);
401 /* Wait a bit here...*/
404 /* GPB0->OUTPUT, GPB0->0 */
405 gpio_direction_output(S3C2410_GPB(0), 0);
407 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
408 for (i = 1; i < 5; i++)
409 gpio_direction_output(S3C2410_GPC(i), 0);
412 for (i = 11; i < 16; i++)
413 gpio_direction_output(S3C2410_GPC(i), 0);
415 /* GPD15-GPD11->0, GPD2->GPD7->0 */
416 for (i = 11; i < 16; i++)
417 gpio_direction_output(S3C2410_GPD(i), 0);
419 for (i = 2; i < 8; i++)
420 gpio_direction_output(S3C2410_GPD(i), 0);
422 /* GPC6->0, GPC7->0, GPC5->0 */
423 gpio_direction_output(S3C2410_GPC(6), 0);
424 gpio_direction_output(S3C2410_GPC(7), 0);
425 gpio_direction_output(S3C2410_GPC(5), 0);
427 /* GPB1->OUTPUT, GPB1->0 */
428 gpio_direction_output(S3C2410_GPB(1), 0);
429 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
430 pwm_disable(lcd_pwm);
432 /* GPC0->0, GPC10->0 */
433 gpio_direction_output(S3C2410_GPC(0), 0);
434 gpio_direction_output(S3C2410_GPC(10), 0);
436 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
439 gpio_direction_output(S3C2410_GPC(0), 1);
440 gpio_direction_output(S3C2410_GPC(5), 1);
442 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
443 gpio_direction_output(S3C2410_GPC(7), 1);
445 for (i = 1; i < 5; i++)
446 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
448 for (i = 11; i < 16; i++)
449 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
451 for (i = 2; i < 8; i++)
452 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
454 for (i = 11; i < 16; i++)
455 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
457 gpio_direction_output(S3C2410_GPC(10), 1);
458 gpio_direction_output(S3C2410_GPC(6), 1);
463 static void rx1950_bl_power(int enable)
466 if (enabled == enable)
469 gpio_direction_output(S3C2410_GPB(0), 0);
471 /* LED driver need a "push" to power on */
472 gpio_direction_output(S3C2410_GPB(0), 1);
473 /* Warm up backlight for one period of PWM.
474 * Without this trick its almost impossible to
475 * enable backlight with low brightness value
478 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
483 static int rx1950_backlight_init(struct device *dev)
485 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
486 lcd_pwm = pwm_request(1, "RX1950 LCD");
487 if (IS_ERR(lcd_pwm)) {
488 dev_err(dev, "Unable to request PWM for LCD power!\n");
489 return PTR_ERR(lcd_pwm);
498 static void rx1950_backlight_exit(struct device *dev)
504 gpio_free(S3C2410_GPB(0));
508 static int rx1950_backlight_notify(struct device *dev, int brightness)
520 static struct platform_pwm_backlight_data rx1950_backlight_data = {
522 .max_brightness = 24,
524 .pwm_period_ns = 48000,
525 .init = rx1950_backlight_init,
526 .notify = rx1950_backlight_notify,
527 .exit = rx1950_backlight_exit,
530 static struct platform_device rx1950_backlight = {
531 .name = "pwm-backlight",
533 .parent = &samsung_device_pwm.dev,
534 .platform_data = &rx1950_backlight_data,
538 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
540 switch (power_mode) {
542 gpio_direction_output(S3C2410_GPJ(1), 0);
546 gpio_direction_output(S3C2410_GPJ(1), 1);
553 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
554 .gpio_detect = S3C2410_GPF(5),
555 .gpio_wprotect = S3C2410_GPH(8),
556 .set_power = rx1950_set_mmc_power,
557 .ocr_avail = MMC_VDD_32_33,
560 static struct mtd_partition rx1950_nand_part[] = {
565 .mask_flags = MTD_WRITEABLE,
569 .offset = MTDPART_OFS_APPEND,
571 .mask_flags = MTD_WRITEABLE,
575 .offset = MTDPART_OFS_APPEND,
580 .name = "Filesystem",
581 .offset = MTDPART_OFS_APPEND,
582 .size = MTDPART_SIZ_FULL,
587 static struct s3c2410_nand_set rx1950_nand_sets[] = {
591 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
592 .partitions = rx1950_nand_part,
596 static struct s3c2410_platform_nand rx1950_nand_info = {
600 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
601 .sets = rx1950_nand_sets,
604 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
605 .vbus_pin = S3C2410_GPG(5),
606 .vbus_pin_inverted = 1,
607 .pullup_pin = S3C2410_GPJ(5),
610 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
613 .oversampling_shift = 3,
616 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
619 .gpio = S3C2410_GPF(0),
621 .desc = "Power button",
626 .gpio = S3C2410_GPF(7),
628 .desc = "Record button",
632 .gpio = S3C2410_GPG(0),
634 .desc = "Calendar button",
638 .gpio = S3C2410_GPG(2),
640 .desc = "Contacts button",
644 .gpio = S3C2410_GPG(3),
646 .desc = "Mail button",
650 .gpio = S3C2410_GPG(7),
652 .desc = "WLAN button",
656 .gpio = S3C2410_GPG(10),
658 .desc = "Left button",
662 .gpio = S3C2410_GPG(11),
664 .desc = "Right button",
668 .gpio = S3C2410_GPG(4),
674 .gpio = S3C2410_GPG(6),
676 .desc = "Down button",
680 .gpio = S3C2410_GPG(9),
686 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
687 .buttons = rx1950_gpio_keys_table,
688 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
691 static struct platform_device rx1950_device_gpiokeys = {
693 .dev.platform_data = &rx1950_gpio_keys_data,
696 static struct uda1380_platform_data uda1380_info = {
697 .gpio_power = S3C2410_GPJ(0),
698 .gpio_reset = S3C2410_GPD(0),
699 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
702 static struct i2c_board_info rx1950_i2c_devices[] = {
704 I2C_BOARD_INFO("uda1380", 0x1a),
705 .platform_data = &uda1380_info,
709 static struct platform_device *rx1950_devices[] __initdata = {
714 &s3c_device_usbgadget,
722 &rx1950_device_gpiokeys,
728 static struct clk *rx1950_clocks[] __initdata = {
733 static void __init rx1950_map_io(void)
735 s3c24xx_clkout0.parent = &clk_h;
736 s3c24xx_clkout1.parent = &clk_f;
738 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
740 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
741 s3c24xx_init_clocks(16934000);
742 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
743 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
747 #ifdef CONFIG_PM_H1940
748 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
754 static void __init rx1950_init_machine(void)
758 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
759 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
760 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
761 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
762 s3c_i2c0_set_platdata(NULL);
763 s3c_nand_set_platdata(&rx1950_nand_info);
765 /* Turn off suspend on both USB ports, and switch the
766 * selectable USB port to USB device mode. */
767 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
768 S3C2410_MISCCR_USBSUSPND0 |
769 S3C2410_MISCCR_USBSUSPND1, 0x0);
771 /* mmc power is disabled by default */
772 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
773 gpio_direction_output(S3C2410_GPJ(1), 0);
775 for (i = 0; i < 8; i++)
776 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
778 for (i = 10; i < 16; i++)
779 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
781 for (i = 2; i < 8; i++)
782 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
784 for (i = 11; i < 16; i++)
785 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
787 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
789 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
790 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
791 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
792 gpio_direction_output(S3C2410_GPA(3), 0);
793 gpio_direction_output(S3C2410_GPA(4), 0);
794 gpio_direction_output(S3C2410_GPJ(6), 0);
796 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
798 i2c_register_board_info(0, rx1950_i2c_devices,
799 ARRAY_SIZE(rx1950_i2c_devices));
802 /* H1940 and RX3715 need to reserve this for suspend */
803 static void __init rx1950_reserve(void)
805 memblock_reserve(0x30003000, 0x1000);
806 memblock_reserve(0x30081000, 0x1000);
809 MACHINE_START(RX1950, "HP iPAQ RX1950")
810 /* Maintainers: Vasily Khoruzhick */
811 .atag_offset = 0x100,
812 .map_io = rx1950_map_io,
813 .reserve = rx1950_reserve,
814 .init_irq = s3c2442_init_irq,
815 .init_machine = rx1950_init_machine,
816 .init_time = samsung_timer_init,
817 .restart = s3c244x_restart,