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 s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
80 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
87 .clocks = rx1950_serial_clocks,
88 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
96 .clocks = rx1950_serial_clocks,
97 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
106 .clocks = rx1950_serial_clocks,
107 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
111 static struct s3c2410fb_display rx1950_display = {
112 .type = S3C2410_LCDCON1_TFT,
127 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
128 S3C2410_LCDCON5_INVVCLK |
129 S3C2410_LCDCON5_INVVLINE |
130 S3C2410_LCDCON5_INVVFRAME |
131 S3C2410_LCDCON5_HWSWP |
137 static int power_supply_init(struct device *dev)
139 return gpio_request(S3C2410_GPF(2), "cable plugged");
142 static int rx1950_is_ac_online(void)
144 return !gpio_get_value(S3C2410_GPF(2));
147 static void power_supply_exit(struct device *dev)
149 gpio_free(S3C2410_GPF(2));
152 static char *rx1950_supplicants[] = {
156 static struct pda_power_pdata power_supply_info = {
157 .init = power_supply_init,
158 .is_ac_online = rx1950_is_ac_online,
159 .exit = power_supply_exit,
160 .supplied_to = rx1950_supplicants,
161 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
164 static struct resource power_supply_resources[] = {
167 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
168 IORESOURCE_IRQ_HIGHEDGE,
174 static struct platform_device power_supply = {
181 .resource = power_supply_resources,
182 .num_resources = ARRAY_SIZE(power_supply_resources),
185 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
186 { .volt = 4100, .cur = 156, .level = 100},
187 { .volt = 4050, .cur = 156, .level = 95},
188 { .volt = 4025, .cur = 141, .level = 90},
189 { .volt = 3995, .cur = 144, .level = 85},
190 { .volt = 3957, .cur = 162, .level = 80},
191 { .volt = 3931, .cur = 147, .level = 75},
192 { .volt = 3902, .cur = 147, .level = 70},
193 { .volt = 3863, .cur = 153, .level = 65},
194 { .volt = 3838, .cur = 150, .level = 60},
195 { .volt = 3800, .cur = 153, .level = 55},
196 { .volt = 3765, .cur = 153, .level = 50},
197 { .volt = 3748, .cur = 172, .level = 45},
198 { .volt = 3740, .cur = 153, .level = 40},
199 { .volt = 3714, .cur = 175, .level = 35},
200 { .volt = 3710, .cur = 156, .level = 30},
201 { .volt = 3963, .cur = 156, .level = 25},
202 { .volt = 3672, .cur = 178, .level = 20},
203 { .volt = 3651, .cur = 178, .level = 15},
204 { .volt = 3629, .cur = 178, .level = 10},
205 { .volt = 3612, .cur = 162, .level = 5},
206 { .volt = 3605, .cur = 162, .level = 0},
209 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
210 { .volt = 4200, .cur = 0, .level = 100},
211 { .volt = 4190, .cur = 0, .level = 99},
212 { .volt = 4178, .cur = 0, .level = 95},
213 { .volt = 4110, .cur = 0, .level = 70},
214 { .volt = 4076, .cur = 0, .level = 65},
215 { .volt = 4046, .cur = 0, .level = 60},
216 { .volt = 4021, .cur = 0, .level = 55},
217 { .volt = 3999, .cur = 0, .level = 50},
218 { .volt = 3982, .cur = 0, .level = 45},
219 { .volt = 3965, .cur = 0, .level = 40},
220 { .volt = 3957, .cur = 0, .level = 35},
221 { .volt = 3948, .cur = 0, .level = 30},
222 { .volt = 3936, .cur = 0, .level = 25},
223 { .volt = 3927, .cur = 0, .level = 20},
224 { .volt = 3906, .cur = 0, .level = 15},
225 { .volt = 3880, .cur = 0, .level = 10},
226 { .volt = 3829, .cur = 0, .level = 5},
227 { .volt = 3820, .cur = 0, .level = 0},
230 int rx1950_bat_init(void)
234 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
237 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
244 gpio_free(S3C2410_GPJ(2));
249 void rx1950_bat_exit(void)
251 gpio_free(S3C2410_GPJ(2));
252 gpio_free(S3C2410_GPJ(3));
255 void rx1950_enable_charger(void)
257 gpio_direction_output(S3C2410_GPJ(2), 1);
258 gpio_direction_output(S3C2410_GPJ(3), 1);
261 void rx1950_disable_charger(void)
263 gpio_direction_output(S3C2410_GPJ(2), 0);
264 gpio_direction_output(S3C2410_GPJ(3), 0);
267 DEFINE_SPINLOCK(rx1950_blink_spin);
269 static int rx1950_led_blink_set(unsigned gpio, int state,
270 unsigned long *delay_on, unsigned long *delay_off)
272 int blink_gpio, check_gpio;
276 blink_gpio = S3C2410_GPA(4);
277 check_gpio = S3C2410_GPA(3);
280 blink_gpio = S3C2410_GPA(3);
281 check_gpio = S3C2410_GPA(4);
288 if (delay_on && delay_off && !*delay_on && !*delay_off)
289 *delay_on = *delay_off = 500;
291 spin_lock(&rx1950_blink_spin);
294 case GPIO_LED_NO_BLINK_LOW:
295 case GPIO_LED_NO_BLINK_HIGH:
296 if (!gpio_get_value(check_gpio))
297 gpio_set_value(S3C2410_GPJ(6), 0);
298 gpio_set_value(blink_gpio, 0);
299 gpio_set_value(gpio, state);
302 gpio_set_value(gpio, 0);
303 gpio_set_value(S3C2410_GPJ(6), 1);
304 gpio_set_value(blink_gpio, 1);
308 spin_unlock(&rx1950_blink_spin);
313 static struct gpio_led rx1950_leds_desc[] = {
316 .default_trigger = "main-battery-full",
317 .gpio = S3C2410_GPA(6),
318 .retain_state_suspended = 1,
323 = "main-battery-charging-blink-full-solid",
324 .gpio = S3C2410_GPA(7),
325 .retain_state_suspended = 1,
329 .default_trigger = "rx1950-acx-mem",
330 .gpio = S3C2410_GPA(11),
331 .retain_state_suspended = 1,
335 static struct gpio_led_platform_data rx1950_leds_pdata = {
336 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
337 .leds = rx1950_leds_desc,
338 .gpio_blink_set = rx1950_led_blink_set,
341 static struct platform_device rx1950_leds = {
345 .platform_data = &rx1950_leds_pdata,
349 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
350 .init = rx1950_bat_init,
351 .exit = rx1950_bat_exit,
352 .enable_charger = rx1950_enable_charger,
353 .disable_charger = rx1950_disable_charger,
354 .gpio_charge_finished = S3C2410_GPF(3),
355 .lut_noac = bat_lut_noac,
356 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
357 .lut_acin = bat_lut_acin,
358 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
360 .current_channel = 1,
362 .current_mult = 2900,
363 .internal_impedance = 200,
366 static struct platform_device rx1950_battery = {
367 .name = "s3c-adc-battery",
370 .parent = &s3c_device_adc.dev,
371 .platform_data = &rx1950_bat_cfg,
375 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
376 .displays = &rx1950_display,
378 .default_display = 0,
381 .gpccon = 0xaa9556a9,
382 .gpccon_mask = 0xffc003fc,
384 .gpcup_mask = 0xffffffff,
386 .gpdcon = 0xaa90aaa1,
387 .gpdcon_mask = 0xffc0fff0,
389 .gpdup_mask = 0xffffffff,
393 static struct pwm_device *lcd_pwm;
395 void rx1950_lcd_power(int enable)
399 if (enabled == enable)
403 /* GPC11-GPC15->OUTPUT */
404 for (i = 11; i < 16; i++)
405 gpio_direction_output(S3C2410_GPC(i), 1);
407 /* Wait a bit here... */
410 /* GPD2-GPD7->OUTPUT */
411 /* GPD11-GPD15->OUTPUT */
412 /* GPD2-GPD7->1, GPD11-GPD15->1 */
413 for (i = 2; i < 8; i++)
414 gpio_direction_output(S3C2410_GPD(i), 1);
415 for (i = 11; i < 16; i++)
416 gpio_direction_output(S3C2410_GPD(i), 1);
418 /* Wait a bit here...*/
421 /* GPB0->OUTPUT, GPB0->0 */
422 gpio_direction_output(S3C2410_GPB(0), 0);
424 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
425 for (i = 1; i < 5; i++)
426 gpio_direction_output(S3C2410_GPC(i), 0);
429 for (i = 11; i < 16; i++)
430 gpio_direction_output(S3C2410_GPC(i), 0);
432 /* GPD15-GPD11->0, GPD2->GPD7->0 */
433 for (i = 11; i < 16; i++)
434 gpio_direction_output(S3C2410_GPD(i), 0);
436 for (i = 2; i < 8; i++)
437 gpio_direction_output(S3C2410_GPD(i), 0);
439 /* GPC6->0, GPC7->0, GPC5->0 */
440 gpio_direction_output(S3C2410_GPC(6), 0);
441 gpio_direction_output(S3C2410_GPC(7), 0);
442 gpio_direction_output(S3C2410_GPC(5), 0);
444 /* GPB1->OUTPUT, GPB1->0 */
445 gpio_direction_output(S3C2410_GPB(1), 0);
446 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
447 pwm_disable(lcd_pwm);
449 /* GPC0->0, GPC10->0 */
450 gpio_direction_output(S3C2410_GPC(0), 0);
451 gpio_direction_output(S3C2410_GPC(10), 0);
453 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
456 gpio_direction_output(S3C2410_GPC(0), 1);
457 gpio_direction_output(S3C2410_GPC(5), 1);
459 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
460 gpio_direction_output(S3C2410_GPC(7), 1);
462 for (i = 1; i < 5; i++)
463 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
465 for (i = 11; i < 16; i++)
466 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
468 for (i = 2; i < 8; i++)
469 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
471 for (i = 11; i < 16; i++)
472 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
474 gpio_direction_output(S3C2410_GPC(10), 1);
475 gpio_direction_output(S3C2410_GPC(6), 1);
480 static void rx1950_bl_power(int enable)
483 if (enabled == enable)
486 gpio_direction_output(S3C2410_GPB(0), 0);
488 /* LED driver need a "push" to power on */
489 gpio_direction_output(S3C2410_GPB(0), 1);
490 /* Warm up backlight for one period of PWM.
491 * Without this trick its almost impossible to
492 * enable backlight with low brightness value
495 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
500 static int rx1950_backlight_init(struct device *dev)
502 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
503 lcd_pwm = pwm_request(1, "RX1950 LCD");
504 if (IS_ERR(lcd_pwm)) {
505 dev_err(dev, "Unable to request PWM for LCD power!\n");
506 return PTR_ERR(lcd_pwm);
515 static void rx1950_backlight_exit(struct device *dev)
521 gpio_free(S3C2410_GPB(0));
525 static int rx1950_backlight_notify(struct device *dev, int brightness)
537 static struct platform_pwm_backlight_data rx1950_backlight_data = {
539 .max_brightness = 24,
541 .pwm_period_ns = 48000,
542 .init = rx1950_backlight_init,
543 .notify = rx1950_backlight_notify,
544 .exit = rx1950_backlight_exit,
547 static struct platform_device rx1950_backlight = {
548 .name = "pwm-backlight",
550 .parent = &s3c_device_timer[0].dev,
551 .platform_data = &rx1950_backlight_data,
555 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
557 switch (power_mode) {
559 gpio_direction_output(S3C2410_GPJ(1), 0);
563 gpio_direction_output(S3C2410_GPJ(1), 1);
570 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
571 .gpio_detect = S3C2410_GPF(5),
572 .gpio_wprotect = S3C2410_GPH(8),
573 .set_power = rx1950_set_mmc_power,
574 .ocr_avail = MMC_VDD_32_33,
577 static struct mtd_partition rx1950_nand_part[] = {
582 .mask_flags = MTD_WRITEABLE,
586 .offset = MTDPART_OFS_APPEND,
588 .mask_flags = MTD_WRITEABLE,
592 .offset = MTDPART_OFS_APPEND,
597 .name = "Filesystem",
598 .offset = MTDPART_OFS_APPEND,
599 .size = MTDPART_SIZ_FULL,
604 static struct s3c2410_nand_set rx1950_nand_sets[] = {
608 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
609 .partitions = rx1950_nand_part,
613 static struct s3c2410_platform_nand rx1950_nand_info = {
617 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
618 .sets = rx1950_nand_sets,
621 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
622 .vbus_pin = S3C2410_GPG(5),
623 .vbus_pin_inverted = 1,
624 .pullup_pin = S3C2410_GPJ(5),
627 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
630 .oversampling_shift = 3,
633 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
636 .gpio = S3C2410_GPF(0),
638 .desc = "Power button",
643 .gpio = S3C2410_GPF(7),
645 .desc = "Record button",
649 .gpio = S3C2410_GPG(0),
651 .desc = "Calendar button",
655 .gpio = S3C2410_GPG(2),
657 .desc = "Contacts button",
661 .gpio = S3C2410_GPG(3),
663 .desc = "Mail button",
667 .gpio = S3C2410_GPG(7),
669 .desc = "WLAN button",
673 .gpio = S3C2410_GPG(10),
675 .desc = "Left button",
679 .gpio = S3C2410_GPG(11),
681 .desc = "Right button",
685 .gpio = S3C2410_GPG(4),
691 .gpio = S3C2410_GPG(6),
693 .desc = "Down button",
697 .gpio = S3C2410_GPG(9),
703 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
704 .buttons = rx1950_gpio_keys_table,
705 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
708 static struct platform_device rx1950_device_gpiokeys = {
710 .dev.platform_data = &rx1950_gpio_keys_data,
713 static struct uda1380_platform_data uda1380_info = {
714 .gpio_power = S3C2410_GPJ(0),
715 .gpio_reset = S3C2410_GPD(0),
716 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
719 static struct i2c_board_info rx1950_i2c_devices[] = {
721 I2C_BOARD_INFO("uda1380", 0x1a),
722 .platform_data = &uda1380_info,
726 static struct platform_device *rx1950_devices[] __initdata = {
732 &s3c_device_usbgadget,
738 &s3c_device_timer[0],
739 &s3c_device_timer[1],
741 &rx1950_device_gpiokeys,
747 static struct clk *rx1950_clocks[] __initdata = {
752 static void __init rx1950_map_io(void)
754 s3c24xx_clkout0.parent = &clk_h;
755 s3c24xx_clkout1.parent = &clk_f;
757 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
759 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
760 s3c24xx_init_clocks(16934000);
761 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
765 #ifdef CONFIG_PM_H1940
766 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
772 static void __init rx1950_init_machine(void)
776 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
777 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
778 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
779 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
780 s3c_i2c0_set_platdata(NULL);
781 s3c_nand_set_platdata(&rx1950_nand_info);
783 /* Turn off suspend on both USB ports, and switch the
784 * selectable USB port to USB device mode. */
785 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
786 S3C2410_MISCCR_USBSUSPND0 |
787 S3C2410_MISCCR_USBSUSPND1, 0x0);
789 /* mmc power is disabled by default */
790 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
791 gpio_direction_output(S3C2410_GPJ(1), 0);
793 for (i = 0; i < 8; i++)
794 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
796 for (i = 10; i < 16; i++)
797 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
799 for (i = 2; i < 8; i++)
800 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
802 for (i = 11; i < 16; i++)
803 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
805 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
807 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
808 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
809 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
810 gpio_direction_output(S3C2410_GPA(3), 0);
811 gpio_direction_output(S3C2410_GPA(4), 0);
812 gpio_direction_output(S3C2410_GPJ(6), 0);
814 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
816 i2c_register_board_info(0, rx1950_i2c_devices,
817 ARRAY_SIZE(rx1950_i2c_devices));
820 /* H1940 and RX3715 need to reserve this for suspend */
821 static void __init rx1950_reserve(void)
823 memblock_reserve(0x30003000, 0x1000);
824 memblock_reserve(0x30081000, 0x1000);
827 MACHINE_START(RX1950, "HP iPAQ RX1950")
828 /* Maintainers: Vasily Khoruzhick */
829 .atag_offset = 0x100,
830 .map_io = rx1950_map_io,
831 .reserve = rx1950_reserve,
832 .init_irq = s3c24xx_init_irq,
833 .init_machine = rx1950_init_machine,
834 .timer = &s3c24xx_timer,