1 // SPDX-License-Identifier: GPL-2.0
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 #include <linux/kernel.h>
9 #include <linux/types.h>
10 #include <linux/interrupt.h>
11 #include <linux/list.h>
12 #include <linux/memblock.h>
13 #include <linux/delay.h>
14 #include <linux/timer.h>
15 #include <linux/init.h>
16 #include <linux/gpio.h>
17 #include <linux/platform_device.h>
18 #include <linux/serial_core.h>
19 #include <linux/serial_s3c.h>
20 #include <linux/input.h>
21 #include <linux/gpio_keys.h>
22 #include <linux/device.h>
23 #include <linux/pda_power.h>
24 #include <linux/pwm_backlight.h>
25 #include <linux/pwm.h>
26 #include <linux/s3c_adc_battery.h>
27 #include <linux/leds.h>
28 #include <linux/i2c.h>
30 #include <linux/mtd/mtd.h>
31 #include <linux/mtd/partitions.h>
33 #include <linux/mmc/host.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
39 #include <linux/platform_data/i2c-s3c2410.h>
40 #include <linux/platform_data/mmc-s3cmci.h>
41 #include <linux/platform_data/mtd-nand-s3c2410.h>
42 #include <linux/platform_data/touchscreen-s3c2410.h>
43 #include <linux/platform_data/usb-s3c2410_udc.h>
45 #include <sound/uda1380.h>
48 #include <mach/regs-gpio.h>
49 #include <mach/regs-lcd.h>
50 #include <mach/gpio-samsung.h>
53 #include <plat/devs.h>
55 #include <plat/samsung-time.h>
56 #include <plat/gpio-cfg.h>
61 #define LCD_PWM_PERIOD 192960
62 #define LCD_PWM_DUTY 127353
64 static struct map_desc rx1950_iodesc[] __initdata = {
67 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
74 .clk_sel = S3C2410_UCON_CLKSEL3,
82 .clk_sel = S3C2410_UCON_CLKSEL3,
91 .clk_sel = S3C2410_UCON_CLKSEL3,
95 static struct s3c2410fb_display rx1950_display = {
96 .type = S3C2410_LCDCON1_TFT,
111 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
112 S3C2410_LCDCON5_INVVCLK |
113 S3C2410_LCDCON5_INVVLINE |
114 S3C2410_LCDCON5_INVVFRAME |
115 S3C2410_LCDCON5_HWSWP |
121 static int power_supply_init(struct device *dev)
123 return gpio_request(S3C2410_GPF(2), "cable plugged");
126 static int rx1950_is_ac_online(void)
128 return !gpio_get_value(S3C2410_GPF(2));
131 static void power_supply_exit(struct device *dev)
133 gpio_free(S3C2410_GPF(2));
136 static char *rx1950_supplicants[] = {
140 static struct pda_power_pdata power_supply_info = {
141 .init = power_supply_init,
142 .is_ac_online = rx1950_is_ac_online,
143 .exit = power_supply_exit,
144 .supplied_to = rx1950_supplicants,
145 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
148 static struct resource power_supply_resources[] = {
149 [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
150 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
153 static struct platform_device power_supply = {
160 .resource = power_supply_resources,
161 .num_resources = ARRAY_SIZE(power_supply_resources),
164 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
165 { .volt = 4100, .cur = 156, .level = 100},
166 { .volt = 4050, .cur = 156, .level = 95},
167 { .volt = 4025, .cur = 141, .level = 90},
168 { .volt = 3995, .cur = 144, .level = 85},
169 { .volt = 3957, .cur = 162, .level = 80},
170 { .volt = 3931, .cur = 147, .level = 75},
171 { .volt = 3902, .cur = 147, .level = 70},
172 { .volt = 3863, .cur = 153, .level = 65},
173 { .volt = 3838, .cur = 150, .level = 60},
174 { .volt = 3800, .cur = 153, .level = 55},
175 { .volt = 3765, .cur = 153, .level = 50},
176 { .volt = 3748, .cur = 172, .level = 45},
177 { .volt = 3740, .cur = 153, .level = 40},
178 { .volt = 3714, .cur = 175, .level = 35},
179 { .volt = 3710, .cur = 156, .level = 30},
180 { .volt = 3963, .cur = 156, .level = 25},
181 { .volt = 3672, .cur = 178, .level = 20},
182 { .volt = 3651, .cur = 178, .level = 15},
183 { .volt = 3629, .cur = 178, .level = 10},
184 { .volt = 3612, .cur = 162, .level = 5},
185 { .volt = 3605, .cur = 162, .level = 0},
188 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
189 { .volt = 4200, .cur = 0, .level = 100},
190 { .volt = 4190, .cur = 0, .level = 99},
191 { .volt = 4178, .cur = 0, .level = 95},
192 { .volt = 4110, .cur = 0, .level = 70},
193 { .volt = 4076, .cur = 0, .level = 65},
194 { .volt = 4046, .cur = 0, .level = 60},
195 { .volt = 4021, .cur = 0, .level = 55},
196 { .volt = 3999, .cur = 0, .level = 50},
197 { .volt = 3982, .cur = 0, .level = 45},
198 { .volt = 3965, .cur = 0, .level = 40},
199 { .volt = 3957, .cur = 0, .level = 35},
200 { .volt = 3948, .cur = 0, .level = 30},
201 { .volt = 3936, .cur = 0, .level = 25},
202 { .volt = 3927, .cur = 0, .level = 20},
203 { .volt = 3906, .cur = 0, .level = 15},
204 { .volt = 3880, .cur = 0, .level = 10},
205 { .volt = 3829, .cur = 0, .level = 5},
206 { .volt = 3820, .cur = 0, .level = 0},
209 static int rx1950_bat_init(void)
213 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
216 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
223 gpio_free(S3C2410_GPJ(2));
228 static void rx1950_bat_exit(void)
230 gpio_free(S3C2410_GPJ(2));
231 gpio_free(S3C2410_GPJ(3));
234 static void rx1950_enable_charger(void)
236 gpio_direction_output(S3C2410_GPJ(2), 1);
237 gpio_direction_output(S3C2410_GPJ(3), 1);
240 static void rx1950_disable_charger(void)
242 gpio_direction_output(S3C2410_GPJ(2), 0);
243 gpio_direction_output(S3C2410_GPJ(3), 0);
246 static DEFINE_SPINLOCK(rx1950_blink_spin);
248 static int rx1950_led_blink_set(struct gpio_desc *desc, int state,
249 unsigned long *delay_on, unsigned long *delay_off)
251 int gpio = desc_to_gpio(desc);
252 int blink_gpio, check_gpio;
256 blink_gpio = S3C2410_GPA(4);
257 check_gpio = S3C2410_GPA(3);
260 blink_gpio = S3C2410_GPA(3);
261 check_gpio = S3C2410_GPA(4);
268 if (delay_on && delay_off && !*delay_on && !*delay_off)
269 *delay_on = *delay_off = 500;
271 spin_lock(&rx1950_blink_spin);
274 case GPIO_LED_NO_BLINK_LOW:
275 case GPIO_LED_NO_BLINK_HIGH:
276 if (!gpio_get_value(check_gpio))
277 gpio_set_value(S3C2410_GPJ(6), 0);
278 gpio_set_value(blink_gpio, 0);
279 gpio_set_value(gpio, state);
282 gpio_set_value(gpio, 0);
283 gpio_set_value(S3C2410_GPJ(6), 1);
284 gpio_set_value(blink_gpio, 1);
288 spin_unlock(&rx1950_blink_spin);
293 static struct gpio_led rx1950_leds_desc[] = {
296 .default_trigger = "main-battery-full",
297 .gpio = S3C2410_GPA(6),
298 .retain_state_suspended = 1,
303 = "main-battery-charging-blink-full-solid",
304 .gpio = S3C2410_GPA(7),
305 .retain_state_suspended = 1,
309 .default_trigger = "rx1950-acx-mem",
310 .gpio = S3C2410_GPA(11),
311 .retain_state_suspended = 1,
315 static struct gpio_led_platform_data rx1950_leds_pdata = {
316 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
317 .leds = rx1950_leds_desc,
318 .gpio_blink_set = rx1950_led_blink_set,
321 static struct platform_device rx1950_leds = {
325 .platform_data = &rx1950_leds_pdata,
329 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
330 .init = rx1950_bat_init,
331 .exit = rx1950_bat_exit,
332 .enable_charger = rx1950_enable_charger,
333 .disable_charger = rx1950_disable_charger,
334 .gpio_charge_finished = S3C2410_GPF(3),
335 .lut_noac = bat_lut_noac,
336 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
337 .lut_acin = bat_lut_acin,
338 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
340 .current_channel = 1,
342 .current_mult = 2900,
343 .internal_impedance = 200,
346 static struct platform_device rx1950_battery = {
347 .name = "s3c-adc-battery",
350 .parent = &s3c_device_adc.dev,
351 .platform_data = &rx1950_bat_cfg,
355 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
356 .displays = &rx1950_display,
358 .default_display = 0,
361 .gpccon = 0xaa9556a9,
362 .gpccon_mask = 0xffc003fc,
364 .gpcup_mask = 0xffffffff,
366 .gpdcon = 0xaa90aaa1,
367 .gpdcon_mask = 0xffc0fff0,
369 .gpdup_mask = 0xffffffff,
373 static struct pwm_lookup rx1950_pwm_lookup[] = {
374 PWM_LOOKUP("samsung-pwm", 0, "pwm-backlight.0", NULL, 48000,
375 PWM_POLARITY_NORMAL),
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);
495 * FIXME: pwm_apply_args() should be removed when switching to
496 * the atomic PWM API.
498 pwm_apply_args(lcd_pwm);
506 static void rx1950_backlight_exit(struct device *dev)
512 gpio_free(S3C2410_GPB(0));
516 static int rx1950_backlight_notify(struct device *dev, int brightness)
528 static struct platform_pwm_backlight_data rx1950_backlight_data = {
529 .max_brightness = 24,
532 .init = rx1950_backlight_init,
533 .notify = rx1950_backlight_notify,
534 .exit = rx1950_backlight_exit,
537 static struct platform_device rx1950_backlight = {
538 .name = "pwm-backlight",
540 .parent = &samsung_device_pwm.dev,
541 .platform_data = &rx1950_backlight_data,
545 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
547 switch (power_mode) {
549 gpio_direction_output(S3C2410_GPJ(1), 0);
553 gpio_direction_output(S3C2410_GPJ(1), 1);
560 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
561 .gpio_detect = S3C2410_GPF(5),
562 .gpio_wprotect = S3C2410_GPH(8),
563 .set_power = rx1950_set_mmc_power,
564 .ocr_avail = MMC_VDD_32_33,
567 static struct mtd_partition rx1950_nand_part[] = {
572 .mask_flags = MTD_WRITEABLE,
576 .offset = MTDPART_OFS_APPEND,
578 .mask_flags = MTD_WRITEABLE,
582 .offset = MTDPART_OFS_APPEND,
587 .name = "Filesystem",
588 .offset = MTDPART_OFS_APPEND,
589 .size = MTDPART_SIZ_FULL,
594 static struct s3c2410_nand_set rx1950_nand_sets[] = {
598 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
599 .partitions = rx1950_nand_part,
603 static struct s3c2410_platform_nand rx1950_nand_info = {
607 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
608 .sets = rx1950_nand_sets,
609 .ecc_mode = NAND_ECC_SOFT,
612 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
613 .vbus_pin = S3C2410_GPG(5),
614 .vbus_pin_inverted = 1,
615 .pullup_pin = S3C2410_GPJ(5),
618 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
621 .oversampling_shift = 3,
624 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
627 .gpio = S3C2410_GPF(0),
629 .desc = "Power button",
634 .gpio = S3C2410_GPF(7),
636 .desc = "Record button",
640 .gpio = S3C2410_GPG(0),
642 .desc = "Calendar button",
646 .gpio = S3C2410_GPG(2),
648 .desc = "Contacts button",
652 .gpio = S3C2410_GPG(3),
654 .desc = "Mail button",
658 .gpio = S3C2410_GPG(7),
660 .desc = "WLAN button",
664 .gpio = S3C2410_GPG(10),
666 .desc = "Left button",
670 .gpio = S3C2410_GPG(11),
672 .desc = "Right button",
676 .gpio = S3C2410_GPG(4),
682 .gpio = S3C2410_GPG(6),
684 .desc = "Down button",
688 .gpio = S3C2410_GPG(9),
694 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
695 .buttons = rx1950_gpio_keys_table,
696 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
699 static struct platform_device rx1950_device_gpiokeys = {
701 .dev.platform_data = &rx1950_gpio_keys_data,
704 static struct uda1380_platform_data uda1380_info = {
705 .gpio_power = S3C2410_GPJ(0),
706 .gpio_reset = S3C2410_GPD(0),
707 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
710 static struct i2c_board_info rx1950_i2c_devices[] = {
712 I2C_BOARD_INFO("uda1380", 0x1a),
713 .platform_data = &uda1380_info,
717 static struct platform_device *rx1950_devices[] __initdata = {
718 &s3c2410_device_dclk,
723 &s3c_device_usbgadget,
731 &rx1950_device_gpiokeys,
737 static void __init rx1950_map_io(void)
739 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
740 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
741 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
745 #ifdef CONFIG_PM_H1940
746 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
752 static void __init rx1950_init_time(void)
754 s3c2442_init_clocks(16934000);
755 samsung_timer_init();
758 static void __init rx1950_init_machine(void)
762 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
763 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
764 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
765 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
766 s3c_i2c0_set_platdata(NULL);
767 s3c_nand_set_platdata(&rx1950_nand_info);
769 /* Turn off suspend on both USB ports, and switch the
770 * selectable USB port to USB device mode. */
771 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
772 S3C2410_MISCCR_USBSUSPND0 |
773 S3C2410_MISCCR_USBSUSPND1, 0x0);
775 /* mmc power is disabled by default */
776 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
777 gpio_direction_output(S3C2410_GPJ(1), 0);
779 for (i = 0; i < 8; i++)
780 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
782 for (i = 10; i < 16; i++)
783 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
785 for (i = 2; i < 8; i++)
786 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
788 for (i = 11; i < 16; i++)
789 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
791 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
793 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
794 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
795 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
796 gpio_direction_output(S3C2410_GPA(3), 0);
797 gpio_direction_output(S3C2410_GPA(4), 0);
798 gpio_direction_output(S3C2410_GPJ(6), 0);
800 pwm_add_table(rx1950_pwm_lookup, ARRAY_SIZE(rx1950_pwm_lookup));
801 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
803 i2c_register_board_info(0, rx1950_i2c_devices,
804 ARRAY_SIZE(rx1950_i2c_devices));
807 /* H1940 and RX3715 need to reserve this for suspend */
808 static void __init rx1950_reserve(void)
810 memblock_reserve(0x30003000, 0x1000);
811 memblock_reserve(0x30081000, 0x1000);
814 MACHINE_START(RX1950, "HP iPAQ RX1950")
815 /* Maintainers: Vasily Khoruzhick */
816 .atag_offset = 0x100,
817 .map_io = rx1950_map_io,
818 .reserve = rx1950_reserve,
819 .init_irq = s3c2442_init_irq,
820 .init_machine = rx1950_init_machine,
821 .init_time = rx1950_init_time,