1 /* linux/arch/arm/mach-s3c2410/mach-h1940.c
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
6 * http://www.handhelds.org/projects/h1940.html
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/timer.h>
20 #include <linux/init.h>
21 #include <linux/sysdev.h>
22 #include <linux/serial_core.h>
23 #include <linux/platform_device.h>
25 #include <linux/gpio.h>
26 #include <linux/input.h>
27 #include <linux/gpio_keys.h>
28 #include <linux/pwm_backlight.h>
29 #include <linux/i2c.h>
30 #include <video/platform_lcd.h>
32 #include <linux/mmc/host.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach/map.h>
36 #include <asm/mach/irq.h>
38 #include <mach/hardware.h>
40 #include <asm/mach-types.h>
42 #include <plat/regs-serial.h>
43 #include <mach/regs-lcd.h>
44 #include <mach/regs-clock.h>
46 #include <mach/regs-gpio.h>
47 #include <mach/gpio-fns.h>
48 #include <mach/gpio-nrs.h>
50 #include <mach/h1940.h>
51 #include <mach/h1940-latch.h>
56 #include <plat/gpio-cfg.h>
57 #include <plat/clock.h>
58 #include <plat/devs.h>
65 #include <sound/uda1380.h>
67 #define H1940_LATCH ((void __force __iomem *)0xF8000000)
69 #define H1940_PA_LATCH S3C2410_CS2
71 #define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
73 static struct map_desc h1940_iodesc[] __initdata = {
75 .virtual = (unsigned long)H1940_LATCH,
76 .pfn = __phys_to_pfn(H1940_PA_LATCH),
82 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
83 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
84 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
86 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
105 .uart_flags = UPF_CONS_FLOW,
112 /* Board control latch control */
114 static unsigned int latch_state;
116 static void h1940_latch_control(unsigned int clear, unsigned int set)
120 local_irq_save(flags);
122 latch_state &= ~clear;
125 __raw_writel(latch_state, H1940_LATCH);
127 local_irq_restore(flags);
130 static inline int h1940_gpiolib_to_latch(int offset)
132 return 1 << (offset + 16);
135 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
136 unsigned offset, int value)
138 int latch_bit = h1940_gpiolib_to_latch(offset);
140 h1940_latch_control(value ? 0 : latch_bit,
141 value ? latch_bit : 0);
144 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
145 unsigned offset, int value)
147 h1940_gpiolib_latch_set(chip, offset, value);
151 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
154 return (latch_state >> (offset + 16)) & 1;
157 struct gpio_chip h1940_latch_gpiochip = {
158 .base = H1940_LATCH_GPIO(0),
159 .owner = THIS_MODULE,
160 .label = "H1940_LATCH",
162 .direction_output = h1940_gpiolib_latch_output,
163 .set = h1940_gpiolib_latch_set,
164 .get = h1940_gpiolib_latch_get,
167 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
168 .vbus_pin = S3C2410_GPG(5),
169 .vbus_pin_inverted = 1,
170 .pullup_pin = H1940_LATCH_USB_DP,
173 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
176 .oversampling_shift = 2,
177 .cfg_gpio = s3c24xx_ts_cfg_gpio,
183 static struct s3c2410fb_display h1940_lcd __initdata = {
184 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
185 S3C2410_LCDCON5_INVVLINE | \
186 S3C2410_LCDCON5_HWSWP,
188 .type = S3C2410_LCDCON1_TFT,
203 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
204 .displays = &h1940_lcd,
206 .default_display = 0,
210 .gpccon_mask= 0xffffffff,
212 .gpcup_mask= 0xffffffff,
214 .gpdcon_mask= 0xffffffff,
216 .gpdup_mask= 0xffffffff,
219 static struct platform_device h1940_device_leds = {
220 .name = "h1940-leds",
224 static struct platform_device h1940_device_bluetooth = {
229 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
231 switch (power_mode) {
233 gpio_set_value(H1940_LATCH_SD_POWER, 0);
237 gpio_set_value(H1940_LATCH_SD_POWER, 1);
244 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
245 .gpio_detect = S3C2410_GPF(5),
246 .gpio_wprotect = S3C2410_GPH(8),
247 .set_power = h1940_set_mmc_power,
248 .ocr_avail = MMC_VDD_32_33,
251 static int h1940_backlight_init(struct device *dev)
253 gpio_request(S3C2410_GPB(0), "Backlight");
255 gpio_direction_output(S3C2410_GPB(0), 0);
256 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
257 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
258 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
263 static int h1940_backlight_notify(struct device *dev, int brightness)
266 gpio_direction_output(S3C2410_GPB(0), 1);
267 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
269 gpio_direction_output(S3C2410_GPB(0), 0);
270 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
271 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
272 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
277 static void h1940_backlight_exit(struct device *dev)
279 gpio_direction_output(S3C2410_GPB(0), 1);
280 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
284 static struct platform_pwm_backlight_data backlight_data = {
286 .max_brightness = 100,
287 .dft_brightness = 50,
289 .pwm_period_ns = 36296,
290 .init = h1940_backlight_init,
291 .notify = h1940_backlight_notify,
292 .exit = h1940_backlight_exit,
295 static struct platform_device h1940_backlight = {
296 .name = "pwm-backlight",
298 .parent = &s3c_device_timer[0].dev,
299 .platform_data = &backlight_data,
304 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
310 gpio_set_value(S3C2410_GPC(0), 0);
313 value = gpio_get_value(S3C2410_GPC(6));
316 gpio_set_value(H1940_LATCH_LCD_P2, 0);
317 gpio_set_value(H1940_LATCH_LCD_P3, 0);
318 gpio_set_value(H1940_LATCH_LCD_P4, 0);
320 gpio_direction_output(S3C2410_GPC(1), 0);
321 gpio_direction_output(S3C2410_GPC(4), 0);
323 gpio_set_value(H1940_LATCH_LCD_P1, 0);
324 gpio_set_value(H1940_LATCH_LCD_P0, 0);
326 gpio_set_value(S3C2410_GPC(5), 0);
329 gpio_set_value(H1940_LATCH_LCD_P0, 1);
330 gpio_set_value(H1940_LATCH_LCD_P1, 1);
332 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
333 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
335 gpio_set_value(S3C2410_GPC(5), 1);
336 gpio_set_value(S3C2410_GPC(0), 1);
338 gpio_set_value(H1940_LATCH_LCD_P3, 1);
339 gpio_set_value(H1940_LATCH_LCD_P2, 1);
340 gpio_set_value(H1940_LATCH_LCD_P4, 1);
344 static struct plat_lcd_data h1940_lcd_power_data = {
345 .set_power = h1940_lcd_power_set,
348 static struct platform_device h1940_lcd_powerdev = {
349 .name = "platform-lcd",
350 .dev.parent = &s3c_device_lcd.dev,
351 .dev.platform_data = &h1940_lcd_power_data,
354 static struct uda1380_platform_data uda1380_info = {
355 .gpio_power = H1940_LATCH_UDA_POWER,
356 .gpio_reset = S3C2410_GPA(12),
357 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
360 static struct i2c_board_info h1940_i2c_devices[] = {
362 I2C_BOARD_INFO("uda1380", 0x1a),
363 .platform_data = &uda1380_info,
367 #define DECLARE_BUTTON(p, k, n, w) \
376 static struct gpio_keys_button h1940_buttons[] = {
377 DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
378 DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
379 DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
380 DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
381 DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
382 DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
383 DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
384 DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
385 DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
386 DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
387 DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
390 static struct gpio_keys_platform_data h1940_buttons_data = {
391 .buttons = h1940_buttons,
392 .nbuttons = ARRAY_SIZE(h1940_buttons),
395 static struct platform_device h1940_dev_buttons = {
399 .platform_data = &h1940_buttons_data,
403 static struct platform_device *h1940_devices[] __initdata = {
411 &s3c_device_usbgadget,
413 &h1940_device_bluetooth,
416 &s3c_device_timer[0],
423 static void __init h1940_map_io(void)
425 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
426 s3c24xx_init_clocks(0);
427 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
431 #ifdef CONFIG_PM_H1940
432 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
436 /* Add latch gpio chip, set latch initial value */
437 h1940_latch_control(0, 0);
438 WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
441 /* H1940 and RX3715 need to reserve this for suspend */
442 static void __init h1940_reserve(void)
444 memblock_reserve(0x30003000, 0x1000);
445 memblock_reserve(0x30081000, 0x1000);
448 static void __init h1940_init_irq(void)
453 static void __init h1940_init(void)
457 s3c24xx_fb_set_platdata(&h1940_fb_info);
458 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
459 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
460 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
461 s3c_i2c0_set_platdata(NULL);
463 /* Turn off suspend on both USB ports, and switch the
464 * selectable USB port to USB device mode. */
466 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
467 S3C2410_MISCCR_USBSUSPND0 |
468 S3C2410_MISCCR_USBSUSPND1, 0x0);
470 tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
471 | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
472 | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
473 writel(tmp, S3C2410_UPLLCON);
475 gpio_request(S3C2410_GPC(0), "LCD power");
476 gpio_request(S3C2410_GPC(1), "LCD power");
477 gpio_request(S3C2410_GPC(4), "LCD power");
478 gpio_request(S3C2410_GPC(5), "LCD power");
479 gpio_request(S3C2410_GPC(6), "LCD power");
480 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
481 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
482 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
483 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
484 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
485 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
486 gpio_direction_output(S3C2410_GPC(0), 0);
487 gpio_direction_output(S3C2410_GPC(1), 0);
488 gpio_direction_output(S3C2410_GPC(4), 0);
489 gpio_direction_output(S3C2410_GPC(5), 0);
490 gpio_direction_input(S3C2410_GPC(6));
491 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
492 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
493 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
494 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
495 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
496 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
498 gpio_request(H1940_LATCH_SD_POWER, "SD power");
499 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
501 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
503 i2c_register_board_info(0, h1940_i2c_devices,
504 ARRAY_SIZE(h1940_i2c_devices));
507 MACHINE_START(H1940, "IPAQ-H1940")
508 /* Maintainer: Ben Dooks <ben-linux@fluff.org> */
509 .boot_params = S3C2410_SDRAM_PA + 0x100,
510 .map_io = h1940_map_io,
511 .reserve = h1940_reserve,
512 .init_irq = h1940_init_irq,
513 .init_machine = h1940_init,
514 .timer = &s3c24xx_timer,