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/h1940.h>
49 #include <plat/clock.h>
50 #include <plat/regs-serial.h>
51 #include <plat/regs-iic.h>
54 #include <plat/nand.h>
56 #include <plat/devs.h>
62 #include <sound/uda1380.h>
64 #define LCD_PWM_PERIOD 192960
65 #define LCD_PWM_DUTY 127353
67 static struct map_desc rx1950_iodesc[] __initdata = {
70 static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
79 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
86 .clocks = rx1950_serial_clocks,
87 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
95 .clocks = rx1950_serial_clocks,
96 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
105 .clocks = rx1950_serial_clocks,
106 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
110 static struct s3c2410fb_display rx1950_display = {
111 .type = S3C2410_LCDCON1_TFT,
126 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
127 S3C2410_LCDCON5_INVVCLK |
128 S3C2410_LCDCON5_INVVLINE |
129 S3C2410_LCDCON5_INVVFRAME |
130 S3C2410_LCDCON5_HWSWP |
136 static int power_supply_init(struct device *dev)
138 return gpio_request(S3C2410_GPF(2), "cable plugged");
141 static int rx1950_is_ac_online(void)
143 return !gpio_get_value(S3C2410_GPF(2));
146 static void power_supply_exit(struct device *dev)
148 gpio_free(S3C2410_GPF(2));
151 static char *rx1950_supplicants[] = {
155 static struct pda_power_pdata power_supply_info = {
156 .init = power_supply_init,
157 .is_ac_online = rx1950_is_ac_online,
158 .exit = power_supply_exit,
159 .supplied_to = rx1950_supplicants,
160 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
163 static struct resource power_supply_resources[] = {
166 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
167 IORESOURCE_IRQ_HIGHEDGE,
173 static struct platform_device power_supply = {
180 .resource = power_supply_resources,
181 .num_resources = ARRAY_SIZE(power_supply_resources),
184 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
185 { .volt = 4100, .cur = 156, .level = 100},
186 { .volt = 4050, .cur = 156, .level = 95},
187 { .volt = 4025, .cur = 141, .level = 90},
188 { .volt = 3995, .cur = 144, .level = 85},
189 { .volt = 3957, .cur = 162, .level = 80},
190 { .volt = 3931, .cur = 147, .level = 75},
191 { .volt = 3902, .cur = 147, .level = 70},
192 { .volt = 3863, .cur = 153, .level = 65},
193 { .volt = 3838, .cur = 150, .level = 60},
194 { .volt = 3800, .cur = 153, .level = 55},
195 { .volt = 3765, .cur = 153, .level = 50},
196 { .volt = 3748, .cur = 172, .level = 45},
197 { .volt = 3740, .cur = 153, .level = 40},
198 { .volt = 3714, .cur = 175, .level = 35},
199 { .volt = 3710, .cur = 156, .level = 30},
200 { .volt = 3963, .cur = 156, .level = 25},
201 { .volt = 3672, .cur = 178, .level = 20},
202 { .volt = 3651, .cur = 178, .level = 15},
203 { .volt = 3629, .cur = 178, .level = 10},
204 { .volt = 3612, .cur = 162, .level = 5},
205 { .volt = 3605, .cur = 162, .level = 0},
208 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
209 { .volt = 4200, .cur = 0, .level = 100},
210 { .volt = 4190, .cur = 0, .level = 99},
211 { .volt = 4178, .cur = 0, .level = 95},
212 { .volt = 4110, .cur = 0, .level = 70},
213 { .volt = 4076, .cur = 0, .level = 65},
214 { .volt = 4046, .cur = 0, .level = 60},
215 { .volt = 4021, .cur = 0, .level = 55},
216 { .volt = 3999, .cur = 0, .level = 50},
217 { .volt = 3982, .cur = 0, .level = 45},
218 { .volt = 3965, .cur = 0, .level = 40},
219 { .volt = 3957, .cur = 0, .level = 35},
220 { .volt = 3948, .cur = 0, .level = 30},
221 { .volt = 3936, .cur = 0, .level = 25},
222 { .volt = 3927, .cur = 0, .level = 20},
223 { .volt = 3906, .cur = 0, .level = 15},
224 { .volt = 3880, .cur = 0, .level = 10},
225 { .volt = 3829, .cur = 0, .level = 5},
226 { .volt = 3820, .cur = 0, .level = 0},
229 int rx1950_bat_init(void)
233 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
236 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
243 gpio_free(S3C2410_GPJ(2));
248 void rx1950_bat_exit(void)
250 gpio_free(S3C2410_GPJ(2));
251 gpio_free(S3C2410_GPJ(3));
254 void rx1950_enable_charger(void)
256 gpio_direction_output(S3C2410_GPJ(2), 1);
257 gpio_direction_output(S3C2410_GPJ(3), 1);
260 void rx1950_disable_charger(void)
262 gpio_direction_output(S3C2410_GPJ(2), 0);
263 gpio_direction_output(S3C2410_GPJ(3), 0);
266 DEFINE_SPINLOCK(rx1950_blink_spin);
268 static int rx1950_led_blink_set(unsigned gpio, int state,
269 unsigned long *delay_on, unsigned long *delay_off)
271 int blink_gpio, check_gpio;
275 blink_gpio = S3C2410_GPA(4);
276 check_gpio = S3C2410_GPA(3);
279 blink_gpio = S3C2410_GPA(3);
280 check_gpio = S3C2410_GPA(4);
287 if (delay_on && delay_off && !*delay_on && !*delay_off)
288 *delay_on = *delay_off = 500;
290 spin_lock(&rx1950_blink_spin);
293 case GPIO_LED_NO_BLINK_LOW:
294 case GPIO_LED_NO_BLINK_HIGH:
295 if (!gpio_get_value(check_gpio))
296 gpio_set_value(S3C2410_GPJ(6), 0);
297 gpio_set_value(blink_gpio, 0);
298 gpio_set_value(gpio, state);
301 gpio_set_value(gpio, 0);
302 gpio_set_value(S3C2410_GPJ(6), 1);
303 gpio_set_value(blink_gpio, 1);
307 spin_unlock(&rx1950_blink_spin);
312 static struct gpio_led rx1950_leds_desc[] = {
315 .default_trigger = "main-battery-full",
316 .gpio = S3C2410_GPA(6),
317 .retain_state_suspended = 1,
322 = "main-battery-charging-blink-full-solid",
323 .gpio = S3C2410_GPA(7),
324 .retain_state_suspended = 1,
328 .default_trigger = "rx1950-acx-mem",
329 .gpio = S3C2410_GPA(11),
330 .retain_state_suspended = 1,
334 static struct gpio_led_platform_data rx1950_leds_pdata = {
335 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
336 .leds = rx1950_leds_desc,
337 .gpio_blink_set = rx1950_led_blink_set,
340 static struct platform_device rx1950_leds = {
344 .platform_data = &rx1950_leds_pdata,
348 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
349 .init = rx1950_bat_init,
350 .exit = rx1950_bat_exit,
351 .enable_charger = rx1950_enable_charger,
352 .disable_charger = rx1950_disable_charger,
353 .gpio_charge_finished = S3C2410_GPF(3),
354 .lut_noac = bat_lut_noac,
355 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
356 .lut_acin = bat_lut_acin,
357 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
359 .current_channel = 1,
361 .current_mult = 2900,
362 .internal_impedance = 200,
365 static struct platform_device rx1950_battery = {
366 .name = "s3c-adc-battery",
369 .parent = &s3c_device_adc.dev,
370 .platform_data = &rx1950_bat_cfg,
374 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
375 .displays = &rx1950_display,
377 .default_display = 0,
380 .gpccon = 0xaa9556a9,
381 .gpccon_mask = 0xffc003fc,
383 .gpcup_mask = 0xffffffff,
385 .gpdcon = 0xaa90aaa1,
386 .gpdcon_mask = 0xffc0fff0,
388 .gpdup_mask = 0xffffffff,
392 static struct pwm_device *lcd_pwm;
394 void rx1950_lcd_power(int enable)
398 if (enabled == enable)
402 /* GPC11-GPC15->OUTPUT */
403 for (i = 11; i < 16; i++)
404 gpio_direction_output(S3C2410_GPC(i), 1);
406 /* Wait a bit here... */
409 /* GPD2-GPD7->OUTPUT */
410 /* GPD11-GPD15->OUTPUT */
411 /* GPD2-GPD7->1, GPD11-GPD15->1 */
412 for (i = 2; i < 8; i++)
413 gpio_direction_output(S3C2410_GPD(i), 1);
414 for (i = 11; i < 16; i++)
415 gpio_direction_output(S3C2410_GPD(i), 1);
417 /* Wait a bit here...*/
420 /* GPB0->OUTPUT, GPB0->0 */
421 gpio_direction_output(S3C2410_GPB(0), 0);
423 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
424 for (i = 1; i < 5; i++)
425 gpio_direction_output(S3C2410_GPC(i), 0);
428 for (i = 11; i < 16; i++)
429 gpio_direction_output(S3C2410_GPC(i), 0);
431 /* GPD15-GPD11->0, GPD2->GPD7->0 */
432 for (i = 11; i < 16; i++)
433 gpio_direction_output(S3C2410_GPD(i), 0);
435 for (i = 2; i < 8; i++)
436 gpio_direction_output(S3C2410_GPD(i), 0);
438 /* GPC6->0, GPC7->0, GPC5->0 */
439 gpio_direction_output(S3C2410_GPC(6), 0);
440 gpio_direction_output(S3C2410_GPC(7), 0);
441 gpio_direction_output(S3C2410_GPC(5), 0);
443 /* GPB1->OUTPUT, GPB1->0 */
444 gpio_direction_output(S3C2410_GPB(1), 0);
445 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
446 pwm_disable(lcd_pwm);
448 /* GPC0->0, GPC10->0 */
449 gpio_direction_output(S3C2410_GPC(0), 0);
450 gpio_direction_output(S3C2410_GPC(10), 0);
452 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
455 gpio_direction_output(S3C2410_GPC(0), 1);
456 gpio_direction_output(S3C2410_GPC(5), 1);
458 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
459 gpio_direction_output(S3C2410_GPC(7), 1);
461 for (i = 1; i < 5; i++)
462 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
464 for (i = 11; i < 16; i++)
465 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
467 for (i = 2; i < 8; i++)
468 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
470 for (i = 11; i < 16; i++)
471 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
473 gpio_direction_output(S3C2410_GPC(10), 1);
474 gpio_direction_output(S3C2410_GPC(6), 1);
479 static void rx1950_bl_power(int enable)
482 if (enabled == enable)
485 gpio_direction_output(S3C2410_GPB(0), 0);
487 /* LED driver need a "push" to power on */
488 gpio_direction_output(S3C2410_GPB(0), 1);
489 /* Warm up backlight for one period of PWM.
490 * Without this trick its almost impossible to
491 * enable backlight with low brightness value
494 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
499 static int rx1950_backlight_init(struct device *dev)
501 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
502 lcd_pwm = pwm_request(1, "RX1950 LCD");
503 if (IS_ERR(lcd_pwm)) {
504 dev_err(dev, "Unable to request PWM for LCD power!\n");
505 return PTR_ERR(lcd_pwm);
514 static void rx1950_backlight_exit(struct device *dev)
520 gpio_free(S3C2410_GPB(0));
524 static int rx1950_backlight_notify(struct device *dev, int brightness)
536 static struct platform_pwm_backlight_data rx1950_backlight_data = {
538 .max_brightness = 24,
540 .pwm_period_ns = 48000,
541 .init = rx1950_backlight_init,
542 .notify = rx1950_backlight_notify,
543 .exit = rx1950_backlight_exit,
546 static struct platform_device rx1950_backlight = {
547 .name = "pwm-backlight",
549 .parent = &s3c_device_timer[0].dev,
550 .platform_data = &rx1950_backlight_data,
554 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
556 switch (power_mode) {
558 gpio_direction_output(S3C2410_GPJ(1), 0);
562 gpio_direction_output(S3C2410_GPJ(1), 1);
569 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
570 .gpio_detect = S3C2410_GPF(5),
571 .gpio_wprotect = S3C2410_GPH(8),
572 .set_power = rx1950_set_mmc_power,
573 .ocr_avail = MMC_VDD_32_33,
576 static struct mtd_partition rx1950_nand_part[] = {
581 .mask_flags = MTD_WRITEABLE,
585 .offset = MTDPART_OFS_APPEND,
587 .mask_flags = MTD_WRITEABLE,
591 .offset = MTDPART_OFS_APPEND,
596 .name = "Filesystem",
597 .offset = MTDPART_OFS_APPEND,
598 .size = MTDPART_SIZ_FULL,
603 static struct s3c2410_nand_set rx1950_nand_sets[] = {
607 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
608 .partitions = rx1950_nand_part,
612 static struct s3c2410_platform_nand rx1950_nand_info = {
616 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
617 .sets = rx1950_nand_sets,
620 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
621 .vbus_pin = S3C2410_GPG(5),
622 .vbus_pin_inverted = 1,
623 .pullup_pin = S3C2410_GPJ(5),
626 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
629 .oversampling_shift = 3,
632 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
635 .gpio = S3C2410_GPF(0),
637 .desc = "Power button",
642 .gpio = S3C2410_GPF(7),
644 .desc = "Record button",
648 .gpio = S3C2410_GPG(0),
650 .desc = "Calendar button",
654 .gpio = S3C2410_GPG(2),
656 .desc = "Contacts button",
660 .gpio = S3C2410_GPG(3),
662 .desc = "Mail button",
666 .gpio = S3C2410_GPG(7),
668 .desc = "WLAN button",
672 .gpio = S3C2410_GPG(10),
674 .desc = "Left button",
678 .gpio = S3C2410_GPG(11),
680 .desc = "Right button",
684 .gpio = S3C2410_GPG(4),
690 .gpio = S3C2410_GPG(6),
692 .desc = "Down button",
696 .gpio = S3C2410_GPG(9),
702 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
703 .buttons = rx1950_gpio_keys_table,
704 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
707 static struct platform_device rx1950_device_gpiokeys = {
709 .dev.platform_data = &rx1950_gpio_keys_data,
712 static struct uda1380_platform_data uda1380_info = {
713 .gpio_power = S3C2410_GPJ(0),
714 .gpio_reset = S3C2410_GPD(0),
715 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
718 static struct i2c_board_info rx1950_i2c_devices[] = {
720 I2C_BOARD_INFO("uda1380", 0x1a),
721 .platform_data = &uda1380_info,
725 static struct platform_device *rx1950_devices[] __initdata = {
731 &s3c_device_usbgadget,
737 &s3c_device_timer[0],
738 &s3c_device_timer[1],
740 &rx1950_device_gpiokeys,
746 static struct clk *rx1950_clocks[] __initdata = {
751 static void __init rx1950_map_io(void)
753 s3c24xx_clkout0.parent = &clk_h;
754 s3c24xx_clkout1.parent = &clk_f;
756 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
758 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
759 s3c24xx_init_clocks(16934000);
760 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
764 #ifdef CONFIG_PM_H1940
765 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
771 static void __init rx1950_init_machine(void)
775 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
776 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
777 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
778 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
779 s3c_i2c0_set_platdata(NULL);
780 s3c_nand_set_platdata(&rx1950_nand_info);
782 /* Turn off suspend on both USB ports, and switch the
783 * selectable USB port to USB device mode. */
784 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
785 S3C2410_MISCCR_USBSUSPND0 |
786 S3C2410_MISCCR_USBSUSPND1, 0x0);
788 /* mmc power is disabled by default */
789 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
790 gpio_direction_output(S3C2410_GPJ(1), 0);
792 for (i = 0; i < 8; i++)
793 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
795 for (i = 10; i < 16; i++)
796 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
798 for (i = 2; i < 8; i++)
799 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
801 for (i = 11; i < 16; i++)
802 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
804 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
806 WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink"));
807 WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink"));
808 WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink"));
809 gpio_direction_output(S3C2410_GPA(3), 0);
810 gpio_direction_output(S3C2410_GPA(4), 0);
811 gpio_direction_output(S3C2410_GPJ(6), 0);
813 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
815 i2c_register_board_info(0, rx1950_i2c_devices,
816 ARRAY_SIZE(rx1950_i2c_devices));
819 /* H1940 and RX3715 need to reserve this for suspend */
820 static void __init rx1950_reserve(void)
822 memblock_reserve(0x30003000, 0x1000);
823 memblock_reserve(0x30081000, 0x1000);
826 MACHINE_START(RX1950, "HP iPAQ RX1950")
827 /* Maintainers: Vasily Khoruzhick */
828 .atag_offset = 0x100,
829 .map_io = rx1950_map_io,
830 .reserve = rx1950_reserve,
831 .init_irq = s3c24xx_init_irq,
832 .init_machine = rx1950_init_machine,
833 .timer = &s3c24xx_timer,