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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>
24#include <linux/io.h>
25#include <linux/gpio.h>
26#include <linux/pwm_backlight.h>
27#include <linux/i2c.h>
28#include <video/platform_lcd.h>
29
30#include <linux/mmc/host.h>
31
32#include <asm/mach/arch.h>
33#include <asm/mach/map.h>
34#include <asm/mach/irq.h>
35
36#include <mach/hardware.h>
37#include <asm/irq.h>
38#include <asm/mach-types.h>
39
40#include <plat/regs-serial.h>
41#include <mach/regs-lcd.h>
42#include <mach/regs-clock.h>
43
44#include <mach/regs-gpio.h>
45#include <mach/gpio-fns.h>
46#include <mach/gpio-nrs.h>
47
48#include <mach/h1940.h>
49#include <mach/h1940-latch.h>
50#include <mach/fb.h>
51#include <plat/udc.h>
52#include <plat/iic.h>
53
54#include <plat/gpio-cfg.h>
55#include <plat/clock.h>
56#include <plat/devs.h>
57#include <plat/cpu.h>
58#include <plat/pll.h>
59#include <plat/pm.h>
60#include <plat/mci.h>
61#include <plat/ts.h>
62
63#include <sound/uda1380.h>
64
65#define H1940_LATCH ((void __force __iomem *)0xF8000000)
66
67#define H1940_PA_LATCH S3C2410_CS2
68
69#define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))
70
71static struct map_desc h1940_iodesc[] __initdata = {
72 [0] = {
73 .virtual = (unsigned long)H1940_LATCH,
74 .pfn = __phys_to_pfn(H1940_PA_LATCH),
75 .length = SZ_16K,
76 .type = MT_DEVICE
77 },
78};
79
80#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
81#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
82#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
83
84static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
85 [0] = {
86 .hwport = 0,
87 .flags = 0,
88 .ucon = 0x3c5,
89 .ulcon = 0x03,
90 .ufcon = 0x51,
91 },
92 [1] = {
93 .hwport = 1,
94 .flags = 0,
95 .ucon = 0x245,
96 .ulcon = 0x03,
97 .ufcon = 0x00,
98 },
99
100 [2] = {
101 .hwport = 2,
102 .flags = 0,
103 .uart_flags = UPF_CONS_FLOW,
104 .ucon = 0x3c5,
105 .ulcon = 0x43,
106 .ufcon = 0x51,
107 }
108};
109
110
111
112static unsigned int latch_state;
113
114static void h1940_latch_control(unsigned int clear, unsigned int set)
115{
116 unsigned long flags;
117
118 local_irq_save(flags);
119
120 latch_state &= ~clear;
121 latch_state |= set;
122
123 __raw_writel(latch_state, H1940_LATCH);
124
125 local_irq_restore(flags);
126}
127
128static inline int h1940_gpiolib_to_latch(int offset)
129{
130 return 1 << (offset + 16);
131}
132
133static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
134 unsigned offset, int value)
135{
136 int latch_bit = h1940_gpiolib_to_latch(offset);
137
138 h1940_latch_control(value ? 0 : latch_bit,
139 value ? latch_bit : 0);
140}
141
142static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
143 unsigned offset, int value)
144{
145 h1940_gpiolib_latch_set(chip, offset, value);
146 return 0;
147}
148
149static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
150 unsigned offset)
151{
152 return (latch_state >> (offset + 16)) & 1;
153}
154
155struct gpio_chip h1940_latch_gpiochip = {
156 .base = H1940_LATCH_GPIO(0),
157 .owner = THIS_MODULE,
158 .label = "H1940_LATCH",
159 .ngpio = 16,
160 .direction_output = h1940_gpiolib_latch_output,
161 .set = h1940_gpiolib_latch_set,
162 .get = h1940_gpiolib_latch_get,
163};
164
165static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
166{
167 printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
168
169 switch (cmd)
170 {
171 case S3C2410_UDC_P_ENABLE :
172 gpio_set_value(H1940_LATCH_USB_DP, 1);
173 break;
174 case S3C2410_UDC_P_DISABLE :
175 gpio_set_value(H1940_LATCH_USB_DP, 0);
176 break;
177 case S3C2410_UDC_P_RESET :
178 break;
179 default:
180 break;
181 }
182}
183
184static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
185 .udc_command = h1940_udc_pullup,
186 .vbus_pin = S3C2410_GPG(5),
187 .vbus_pin_inverted = 1,
188};
189
190static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
191 .delay = 10000,
192 .presc = 49,
193 .oversampling_shift = 2,
194 .cfg_gpio = s3c24xx_ts_cfg_gpio,
195};
196
197
198
199
200static struct s3c2410fb_display h1940_lcd __initdata = {
201 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
202 S3C2410_LCDCON5_INVVLINE | \
203 S3C2410_LCDCON5_HWSWP,
204
205 .type = S3C2410_LCDCON1_TFT,
206 .width = 240,
207 .height = 320,
208 .pixclock = 260000,
209 .xres = 240,
210 .yres = 320,
211 .bpp = 16,
212 .left_margin = 8,
213 .right_margin = 20,
214 .hsync_len = 4,
215 .upper_margin = 8,
216 .lower_margin = 7,
217 .vsync_len = 1,
218};
219
220static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
221 .displays = &h1940_lcd,
222 .num_displays = 1,
223 .default_display = 0,
224
225 .lpcsel= 0x02,
226 .gpccon= 0xaa940659,
227 .gpccon_mask= 0xffffffff,
228 .gpcup= 0x0000ffff,
229 .gpcup_mask= 0xffffffff,
230 .gpdcon= 0xaa84aaa0,
231 .gpdcon_mask= 0xffffffff,
232 .gpdup= 0x0000faff,
233 .gpdup_mask= 0xffffffff,
234};
235
236static struct platform_device h1940_device_leds = {
237 .name = "h1940-leds",
238 .id = -1,
239};
240
241static struct platform_device h1940_device_bluetooth = {
242 .name = "h1940-bt",
243 .id = -1,
244};
245
246static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
247{
248 switch (power_mode) {
249 case MMC_POWER_OFF:
250 gpio_set_value(H1940_LATCH_SD_POWER, 0);
251 break;
252 case MMC_POWER_UP:
253 case MMC_POWER_ON:
254 gpio_set_value(H1940_LATCH_SD_POWER, 1);
255 break;
256 default:
257 break;
258 };
259}
260
261static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
262 .gpio_detect = S3C2410_GPF(5),
263 .gpio_wprotect = S3C2410_GPH(8),
264 .set_power = h1940_set_mmc_power,
265 .ocr_avail = MMC_VDD_32_33,
266};
267
268static int h1940_backlight_init(struct device *dev)
269{
270 gpio_request(S3C2410_GPB(0), "Backlight");
271
272 gpio_direction_output(S3C2410_GPB(0), 0);
273 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
274 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
275 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
276
277 return 0;
278}
279
280static int h1940_backlight_notify(struct device *dev, int brightness)
281{
282 if (!brightness) {
283 gpio_direction_output(S3C2410_GPB(0), 1);
284 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
285 } else {
286 gpio_direction_output(S3C2410_GPB(0), 0);
287 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
288 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
289 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
290 }
291 return brightness;
292}
293
294static void h1940_backlight_exit(struct device *dev)
295{
296 gpio_direction_output(S3C2410_GPB(0), 1);
297 gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
298}
299
300
301static struct platform_pwm_backlight_data backlight_data = {
302 .pwm_id = 0,
303 .max_brightness = 100,
304 .dft_brightness = 50,
305
306 .pwm_period_ns = 36296,
307 .init = h1940_backlight_init,
308 .notify = h1940_backlight_notify,
309 .exit = h1940_backlight_exit,
310};
311
312static struct platform_device h1940_backlight = {
313 .name = "pwm-backlight",
314 .dev = {
315 .parent = &s3c_device_timer[0].dev,
316 .platform_data = &backlight_data,
317 },
318 .id = -1,
319};
320
321static void h1940_lcd_power_set(struct plat_lcd_data *pd,
322 unsigned int power)
323{
324 int value;
325
326 if (!power) {
327 gpio_set_value(S3C2410_GPC(0), 0);
328
329 do {
330 value = gpio_get_value(S3C2410_GPC(6));
331 } while (value);
332
333 gpio_set_value(H1940_LATCH_LCD_P2, 0);
334 gpio_set_value(H1940_LATCH_LCD_P3, 0);
335 gpio_set_value(H1940_LATCH_LCD_P4, 0);
336
337 gpio_direction_output(S3C2410_GPC(1), 0);
338 gpio_direction_output(S3C2410_GPC(4), 0);
339
340 gpio_set_value(H1940_LATCH_LCD_P1, 0);
341 gpio_set_value(H1940_LATCH_LCD_P0, 0);
342
343 gpio_set_value(S3C2410_GPC(5), 0);
344
345 } else {
346 gpio_set_value(H1940_LATCH_LCD_P0, 1);
347 gpio_set_value(H1940_LATCH_LCD_P1, 1);
348
349 s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
350 s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));
351
352 gpio_set_value(S3C2410_GPC(5), 1);
353 gpio_set_value(S3C2410_GPC(0), 1);
354
355 gpio_set_value(H1940_LATCH_LCD_P3, 1);
356 gpio_set_value(H1940_LATCH_LCD_P2, 1);
357 gpio_set_value(H1940_LATCH_LCD_P4, 1);
358 }
359}
360
361static struct plat_lcd_data h1940_lcd_power_data = {
362 .set_power = h1940_lcd_power_set,
363};
364
365static struct platform_device h1940_lcd_powerdev = {
366 .name = "platform-lcd",
367 .dev.parent = &s3c_device_lcd.dev,
368 .dev.platform_data = &h1940_lcd_power_data,
369};
370
371static struct uda1380_platform_data uda1380_info = {
372 .gpio_power = H1940_LATCH_UDA_POWER,
373 .gpio_reset = S3C2410_GPA(12),
374 .dac_clk = UDA1380_DAC_CLK_SYSCLK,
375};
376
377static struct i2c_board_info h1940_i2c_devices[] = {
378 {
379 I2C_BOARD_INFO("uda1380", 0x1a),
380 .platform_data = &uda1380_info,
381 },
382};
383
384static struct platform_device *h1940_devices[] __initdata = {
385 &s3c_device_ohci,
386 &s3c_device_lcd,
387 &s3c_device_wdt,
388 &s3c_device_i2c0,
389 &s3c_device_iis,
390 &samsung_asoc_dma,
391 &s3c_device_usbgadget,
392 &h1940_device_leds,
393 &h1940_device_bluetooth,
394 &s3c_device_sdi,
395 &s3c_device_rtc,
396 &s3c_device_timer[0],
397 &h1940_backlight,
398 &h1940_lcd_powerdev,
399 &s3c_device_adc,
400 &s3c_device_ts,
401};
402
403static void __init h1940_map_io(void)
404{
405 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
406 s3c24xx_init_clocks(0);
407 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
408
409
410
411#ifdef CONFIG_PM_H1940
412 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
413#endif
414 s3c_pm_init();
415
416
417 h1940_latch_control(0, 0);
418 WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
419}
420
421
422static void __init h1940_reserve(void)
423{
424 memblock_reserve(0x30003000, 0x1000);
425 memblock_reserve(0x30081000, 0x1000);
426}
427
428static void __init h1940_init_irq(void)
429{
430 s3c24xx_init_irq();
431}
432
433static void __init h1940_init(void)
434{
435 u32 tmp;
436
437 s3c24xx_fb_set_platdata(&h1940_fb_info);
438 s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
439 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
440 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
441 s3c_i2c0_set_platdata(NULL);
442
443
444
445
446 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
447 S3C2410_MISCCR_USBSUSPND0 |
448 S3C2410_MISCCR_USBSUSPND1, 0x0);
449
450 tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
451 | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
452 | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
453 writel(tmp, S3C2410_UPLLCON);
454
455 gpio_request(S3C2410_GPC(0), "LCD power");
456 gpio_request(S3C2410_GPC(1), "LCD power");
457 gpio_request(S3C2410_GPC(4), "LCD power");
458 gpio_request(S3C2410_GPC(5), "LCD power");
459 gpio_request(S3C2410_GPC(6), "LCD power");
460 gpio_request(H1940_LATCH_LCD_P0, "LCD power");
461 gpio_request(H1940_LATCH_LCD_P1, "LCD power");
462 gpio_request(H1940_LATCH_LCD_P2, "LCD power");
463 gpio_request(H1940_LATCH_LCD_P3, "LCD power");
464 gpio_request(H1940_LATCH_LCD_P4, "LCD power");
465 gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
466 gpio_direction_output(S3C2410_GPC(0), 0);
467 gpio_direction_output(S3C2410_GPC(1), 0);
468 gpio_direction_output(S3C2410_GPC(4), 0);
469 gpio_direction_output(S3C2410_GPC(5), 0);
470 gpio_direction_input(S3C2410_GPC(6));
471 gpio_direction_output(H1940_LATCH_LCD_P0, 0);
472 gpio_direction_output(H1940_LATCH_LCD_P1, 0);
473 gpio_direction_output(H1940_LATCH_LCD_P2, 0);
474 gpio_direction_output(H1940_LATCH_LCD_P3, 0);
475 gpio_direction_output(H1940_LATCH_LCD_P4, 0);
476 gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
477
478 gpio_request(H1940_LATCH_USB_DP, "USB pullup");
479 gpio_direction_output(H1940_LATCH_USB_DP, 0);
480
481 gpio_request(H1940_LATCH_SD_POWER, "SD power");
482 gpio_direction_output(H1940_LATCH_SD_POWER, 0);
483
484 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
485
486 i2c_register_board_info(0, h1940_i2c_devices,
487 ARRAY_SIZE(h1940_i2c_devices));
488}
489
490MACHINE_START(H1940, "IPAQ-H1940")
491
492 .boot_params = S3C2410_SDRAM_PA + 0x100,
493 .map_io = h1940_map_io,
494 .reserve = h1940_reserve,
495 .init_irq = h1940_init_irq,
496 .init_machine = h1940_init,
497 .timer = &s3c24xx_timer,
498MACHINE_END
499
