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>
34 #include <linux/mtd/mtd.h>
35 #include <linux/mtd/partitions.h>
37 #include <linux/mmc/host.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach-types.h>
43 #include <mach/regs-gpio.h>
44 #include <mach/regs-gpioj.h>
45 #include <mach/h1940.h>
48 #include <plat/clock.h>
49 #include <plat/regs-serial.h>
50 #include <plat/regs-iic.h>
53 #include <plat/nand.h>
55 #include <plat/devs.h>
61 #define LCD_PWM_PERIOD 192960
62 #define LCD_PWM_DUTY 127353
64 static struct map_desc rx1950_iodesc[] __initdata = {
67 static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
76 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
83 .clocks = rx1950_serial_clocks,
84 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
92 .clocks = rx1950_serial_clocks,
93 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
102 .clocks = rx1950_serial_clocks,
103 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
107 static struct s3c2410fb_display rx1950_display = {
108 .type = S3C2410_LCDCON1_TFT,
123 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
124 S3C2410_LCDCON5_INVVCLK |
125 S3C2410_LCDCON5_INVVLINE |
126 S3C2410_LCDCON5_INVVFRAME |
127 S3C2410_LCDCON5_HWSWP |
133 static int power_supply_init(struct device *dev)
135 return gpio_request(S3C2410_GPF(2), "cable plugged");
138 static int rx1950_is_ac_online(void)
140 return !gpio_get_value(S3C2410_GPF(2));
143 static void power_supply_exit(struct device *dev)
145 gpio_free(S3C2410_GPF(2));
148 static char *rx1950_supplicants[] = {
152 static struct pda_power_pdata power_supply_info = {
153 .init = power_supply_init,
154 .is_ac_online = rx1950_is_ac_online,
155 .exit = power_supply_exit,
156 .supplied_to = rx1950_supplicants,
157 .num_supplicants = ARRAY_SIZE(rx1950_supplicants),
160 static struct resource power_supply_resources[] = {
163 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE |
164 IORESOURCE_IRQ_HIGHEDGE,
170 static struct platform_device power_supply = {
177 .resource = power_supply_resources,
178 .num_resources = ARRAY_SIZE(power_supply_resources),
181 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
182 { .volt = 4100, .cur = 156, .level = 100},
183 { .volt = 4050, .cur = 156, .level = 95},
184 { .volt = 4025, .cur = 141, .level = 90},
185 { .volt = 3995, .cur = 144, .level = 85},
186 { .volt = 3957, .cur = 162, .level = 80},
187 { .volt = 3931, .cur = 147, .level = 75},
188 { .volt = 3902, .cur = 147, .level = 70},
189 { .volt = 3863, .cur = 153, .level = 65},
190 { .volt = 3838, .cur = 150, .level = 60},
191 { .volt = 3800, .cur = 153, .level = 55},
192 { .volt = 3765, .cur = 153, .level = 50},
193 { .volt = 3748, .cur = 172, .level = 45},
194 { .volt = 3740, .cur = 153, .level = 40},
195 { .volt = 3714, .cur = 175, .level = 35},
196 { .volt = 3710, .cur = 156, .level = 30},
197 { .volt = 3963, .cur = 156, .level = 25},
198 { .volt = 3672, .cur = 178, .level = 20},
199 { .volt = 3651, .cur = 178, .level = 15},
200 { .volt = 3629, .cur = 178, .level = 10},
201 { .volt = 3612, .cur = 162, .level = 5},
202 { .volt = 3605, .cur = 162, .level = 0},
205 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
206 { .volt = 4200, .cur = 0, .level = 100},
207 { .volt = 4190, .cur = 0, .level = 99},
208 { .volt = 4178, .cur = 0, .level = 95},
209 { .volt = 4110, .cur = 0, .level = 70},
210 { .volt = 4076, .cur = 0, .level = 65},
211 { .volt = 4046, .cur = 0, .level = 60},
212 { .volt = 4021, .cur = 0, .level = 55},
213 { .volt = 3999, .cur = 0, .level = 50},
214 { .volt = 3982, .cur = 0, .level = 45},
215 { .volt = 3965, .cur = 0, .level = 40},
216 { .volt = 3957, .cur = 0, .level = 35},
217 { .volt = 3948, .cur = 0, .level = 30},
218 { .volt = 3936, .cur = 0, .level = 25},
219 { .volt = 3927, .cur = 0, .level = 20},
220 { .volt = 3906, .cur = 0, .level = 15},
221 { .volt = 3880, .cur = 0, .level = 10},
222 { .volt = 3829, .cur = 0, .level = 5},
223 { .volt = 3820, .cur = 0, .level = 0},
226 int rx1950_bat_init(void)
230 ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1");
233 ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2");
240 gpio_free(S3C2410_GPJ(2));
245 void rx1950_bat_exit(void)
247 gpio_free(S3C2410_GPJ(2));
248 gpio_free(S3C2410_GPJ(3));
251 void rx1950_enable_charger(void)
253 gpio_direction_output(S3C2410_GPJ(2), 1);
254 gpio_direction_output(S3C2410_GPJ(3), 1);
257 void rx1950_disable_charger(void)
259 gpio_direction_output(S3C2410_GPJ(2), 0);
260 gpio_direction_output(S3C2410_GPJ(3), 0);
263 static struct gpio_led rx1950_leds_desc[] = {
266 .default_trigger = "main-battery-charging-or-full",
267 .gpio = S3C2410_GPA(6),
271 .default_trigger = "main-battery-full",
272 .gpio = S3C2410_GPA(7),
276 .default_trigger = "rx1950-acx-mem",
277 .gpio = S3C2410_GPA(11),
281 static struct gpio_led_platform_data rx1950_leds_pdata = {
282 .num_leds = ARRAY_SIZE(rx1950_leds_desc),
283 .leds = rx1950_leds_desc,
286 static struct platform_device rx1950_leds = {
290 .platform_data = &rx1950_leds_pdata,
294 static struct s3c_adc_bat_pdata rx1950_bat_cfg = {
295 .init = rx1950_bat_init,
296 .exit = rx1950_bat_exit,
297 .enable_charger = rx1950_enable_charger,
298 .disable_charger = rx1950_disable_charger,
299 .gpio_charge_finished = S3C2410_GPF(3),
300 .lut_noac = bat_lut_noac,
301 .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
302 .lut_acin = bat_lut_acin,
303 .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
305 .current_channel = 1,
307 .current_mult = 2900,
308 .internal_impedance = 200,
311 static struct platform_device rx1950_battery = {
312 .name = "s3c-adc-battery",
315 .parent = &s3c_device_adc.dev,
316 .platform_data = &rx1950_bat_cfg,
320 static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
321 .displays = &rx1950_display,
323 .default_display = 0,
326 .gpccon = 0xaa9556a9,
327 .gpccon_mask = 0xffc003fc,
329 .gpcup_mask = 0xffffffff,
331 .gpdcon = 0xaa90aaa1,
332 .gpdcon_mask = 0xffc0fff0,
334 .gpdup_mask = 0xffffffff,
338 static struct pwm_device *lcd_pwm;
340 void rx1950_lcd_power(int enable)
344 if (enabled == enable)
348 /* GPC11-GPC15->OUTPUT */
349 for (i = 11; i < 16; i++)
350 gpio_direction_output(S3C2410_GPC(i), 1);
352 /* Wait a bit here... */
355 /* GPD2-GPD7->OUTPUT */
356 /* GPD11-GPD15->OUTPUT */
357 /* GPD2-GPD7->1, GPD11-GPD15->1 */
358 for (i = 2; i < 8; i++)
359 gpio_direction_output(S3C2410_GPD(i), 1);
360 for (i = 11; i < 16; i++)
361 gpio_direction_output(S3C2410_GPD(i), 1);
363 /* Wait a bit here...*/
366 /* GPB0->OUTPUT, GPB0->0 */
367 gpio_direction_output(S3C2410_GPB(0), 0);
369 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
370 for (i = 1; i < 5; i++)
371 gpio_direction_output(S3C2410_GPC(i), 0);
374 for (i = 11; i < 16; i++)
375 gpio_direction_output(S3C2410_GPC(i), 0);
377 /* GPD15-GPD11->0, GPD2->GPD7->0 */
378 for (i = 11; i < 16; i++)
379 gpio_direction_output(S3C2410_GPD(i), 0);
381 for (i = 2; i < 8; i++)
382 gpio_direction_output(S3C2410_GPD(i), 0);
384 /* GPC6->0, GPC7->0, GPC5->0 */
385 gpio_direction_output(S3C2410_GPC(6), 0);
386 gpio_direction_output(S3C2410_GPC(7), 0);
387 gpio_direction_output(S3C2410_GPC(5), 0);
389 /* GPB1->OUTPUT, GPB1->0 */
390 gpio_direction_output(S3C2410_GPB(1), 0);
391 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
392 pwm_disable(lcd_pwm);
394 /* GPC0->0, GPC10->0 */
395 gpio_direction_output(S3C2410_GPC(0), 0);
396 gpio_direction_output(S3C2410_GPC(10), 0);
398 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
401 gpio_direction_output(S3C2410_GPC(0), 1);
402 gpio_direction_output(S3C2410_GPC(5), 1);
404 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
405 gpio_direction_output(S3C2410_GPC(7), 1);
407 for (i = 1; i < 5; i++)
408 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
410 for (i = 11; i < 16; i++)
411 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
413 for (i = 2; i < 8; i++)
414 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
416 for (i = 11; i < 16; i++)
417 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
419 gpio_direction_output(S3C2410_GPC(10), 1);
420 gpio_direction_output(S3C2410_GPC(6), 1);
425 static void rx1950_bl_power(int enable)
428 if (enabled == enable)
431 gpio_direction_output(S3C2410_GPB(0), 0);
433 /* LED driver need a "push" to power on */
434 gpio_direction_output(S3C2410_GPB(0), 1);
435 /* Warm up backlight for one period of PWM.
436 * Without this trick its almost impossible to
437 * enable backlight with low brightness value
440 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
445 static int rx1950_backlight_init(struct device *dev)
447 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
448 lcd_pwm = pwm_request(1, "RX1950 LCD");
449 if (IS_ERR(lcd_pwm)) {
450 dev_err(dev, "Unable to request PWM for LCD power!\n");
451 return PTR_ERR(lcd_pwm);
460 static void rx1950_backlight_exit(struct device *dev)
466 gpio_free(S3C2410_GPB(0));
470 static int rx1950_backlight_notify(struct device *dev, int brightness)
482 static struct platform_pwm_backlight_data rx1950_backlight_data = {
484 .max_brightness = 24,
486 .pwm_period_ns = 48000,
487 .init = rx1950_backlight_init,
488 .notify = rx1950_backlight_notify,
489 .exit = rx1950_backlight_exit,
492 static struct platform_device rx1950_backlight = {
493 .name = "pwm-backlight",
495 .parent = &s3c_device_timer[0].dev,
496 .platform_data = &rx1950_backlight_data,
500 static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
502 switch (power_mode) {
504 gpio_direction_output(S3C2410_GPJ(1), 0);
508 gpio_direction_output(S3C2410_GPJ(1), 1);
515 static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
516 .gpio_detect = S3C2410_GPF(5),
517 .gpio_wprotect = S3C2410_GPH(8),
518 .set_power = rx1950_set_mmc_power,
519 .ocr_avail = MMC_VDD_32_33,
522 static struct mtd_partition rx1950_nand_part[] = {
527 .mask_flags = MTD_WRITEABLE,
531 .offset = MTDPART_OFS_APPEND,
533 .mask_flags = MTD_WRITEABLE,
537 .offset = MTDPART_OFS_APPEND,
542 .name = "Filesystem",
543 .offset = MTDPART_OFS_APPEND,
544 .size = MTDPART_SIZ_FULL,
549 static struct s3c2410_nand_set rx1950_nand_sets[] = {
553 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
554 .partitions = rx1950_nand_part,
558 static struct s3c2410_platform_nand rx1950_nand_info = {
562 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
563 .sets = rx1950_nand_sets,
566 static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
569 case S3C2410_UDC_P_ENABLE:
570 gpio_direction_output(S3C2410_GPJ(5), 1);
572 case S3C2410_UDC_P_DISABLE:
573 gpio_direction_output(S3C2410_GPJ(5), 0);
575 case S3C2410_UDC_P_RESET:
582 static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
583 .udc_command = rx1950_udc_pullup,
584 .vbus_pin = S3C2410_GPG(5),
585 .vbus_pin_inverted = 1,
588 static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
591 .oversampling_shift = 3,
594 static struct gpio_keys_button rx1950_gpio_keys_table[] = {
597 .gpio = S3C2410_GPF(0),
599 .desc = "Power button",
604 .gpio = S3C2410_GPF(7),
606 .desc = "Record button",
610 .gpio = S3C2410_GPG(0),
612 .desc = "Calendar button",
616 .gpio = S3C2410_GPG(2),
618 .desc = "Contacts button",
622 .gpio = S3C2410_GPG(3),
624 .desc = "Mail button",
628 .gpio = S3C2410_GPG(7),
630 .desc = "WLAN button",
634 .gpio = S3C2410_GPG(10),
636 .desc = "Left button",
640 .gpio = S3C2410_GPG(11),
642 .desc = "Right button",
646 .gpio = S3C2410_GPG(4),
652 .gpio = S3C2410_GPG(6),
654 .desc = "Down button",
658 .gpio = S3C2410_GPG(9),
664 static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
665 .buttons = rx1950_gpio_keys_table,
666 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
669 static struct platform_device rx1950_device_gpiokeys = {
671 .dev.platform_data = &rx1950_gpio_keys_data,
674 static struct s3c2410_platform_i2c rx1950_i2c_data = {
677 .frequency = 400 * 1000,
678 .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
681 static struct platform_device *rx1950_devices[] __initdata = {
686 &s3c_device_usbgadget,
692 &s3c_device_timer[0],
693 &s3c_device_timer[1],
695 &rx1950_device_gpiokeys,
701 static struct clk *rx1950_clocks[] __initdata = {
706 static void __init rx1950_map_io(void)
708 s3c24xx_clkout0.parent = &clk_h;
709 s3c24xx_clkout1.parent = &clk_f;
711 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
713 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
714 s3c24xx_init_clocks(16934000);
715 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
719 #ifdef CONFIG_PM_H1940
720 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
726 static void __init rx1950_init_machine(void)
730 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
731 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
732 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
733 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
734 s3c_i2c0_set_platdata(&rx1950_i2c_data);
735 s3c_nand_set_platdata(&rx1950_nand_info);
737 /* Turn off suspend on both USB ports, and switch the
738 * selectable USB port to USB device mode. */
739 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
740 S3C2410_MISCCR_USBSUSPND0 |
741 S3C2410_MISCCR_USBSUSPND1, 0x0);
743 WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));
744 gpio_direction_output(S3C2410_GPJ(5), 0);
746 /* mmc power is disabled by default */
747 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
748 gpio_direction_output(S3C2410_GPJ(1), 0);
750 for (i = 0; i < 8; i++)
751 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
753 for (i = 10; i < 16; i++)
754 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
756 for (i = 2; i < 8; i++)
757 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
759 for (i = 11; i < 16; i++)
760 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
762 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
764 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
767 /* H1940 and RX3715 need to reserve this for suspend */
768 static void __init rx1950_reserve(void)
770 memblock_reserve(0x30003000, 0x1000);
771 memblock_reserve(0x30081000, 0x1000);
774 MACHINE_START(RX1950, "HP iPAQ RX1950")
775 /* Maintainers: Vasily Khoruzhick */
776 .phys_io = S3C2410_PA_UART,
777 .io_pg_offst = (((u32) S3C24XX_VA_UART) >> 18) & 0xfffc,
778 .boot_params = S3C2410_SDRAM_PA + 0x100,
779 .map_io = rx1950_map_io,
780 .reserve = rx1950_reserve,
781 .init_irq = s3c24xx_init_irq,
782 .init_machine = rx1950_init_machine,
783 .timer = &s3c24xx_timer,