ARM: S3C24XX: move s3c24xx_init_irq to s3c2410_init_irq
[sfrench/cifs-2.6.git] / arch / arm / mach-s3c24xx / mach-n30.c
1 /* Machine specific code for the Acer n30, Acer N35, Navman PiN 570,
2  * Yakumo AlphaX and Airis NC05 PDAs.
3  *
4  * Copyright (c) 2003-2005 Simtec Electronics
5  *      Ben Dooks <ben@simtec.co.uk>
6  *
7  * Copyright (c) 2005-2008 Christer Weinigel <christer@weinigel.se>
8  *
9  * There is a wiki with more information about the n30 port at
10  * http://handhelds.org/moin/moin.cgi/AcerN30Documentation .
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2 as
14  * published by the Free Software Foundation.
15  */
16
17 #include <linux/kernel.h>
18 #include <linux/types.h>
19
20 #include <linux/gpio_keys.h>
21 #include <linux/init.h>
22 #include <linux/gpio.h>
23 #include <linux/input.h>
24 #include <linux/interrupt.h>
25 #include <linux/platform_device.h>
26 #include <linux/serial_core.h>
27 #include <linux/timer.h>
28 #include <linux/io.h>
29 #include <linux/mmc/host.h>
30
31 #include <mach/hardware.h>
32 #include <asm/irq.h>
33 #include <asm/mach-types.h>
34
35 #include <mach/fb.h>
36 #include <linux/platform_data/leds-s3c24xx.h>
37 #include <mach/regs-gpio.h>
38 #include <mach/regs-lcd.h>
39
40 #include <asm/mach/arch.h>
41 #include <asm/mach/irq.h>
42 #include <asm/mach/map.h>
43
44 #include <linux/platform_data/i2c-s3c2410.h>
45 #include <plat/regs-serial.h>
46
47 #include <plat/clock.h>
48 #include <plat/cpu.h>
49 #include <plat/devs.h>
50 #include <linux/platform_data/mmc-s3cmci.h>
51 #include <linux/platform_data/usb-s3c2410_udc.h>
52 #include <plat/samsung-time.h>
53
54 #include "common.h"
55
56 static struct map_desc n30_iodesc[] __initdata = {
57         /* nothing here yet */
58 };
59
60 static struct s3c2410_uartcfg n30_uartcfgs[] = {
61         /* Normal serial port */
62         [0] = {
63                 .hwport      = 0,
64                 .flags       = 0,
65                 .ucon        = 0x2c5,
66                 .ulcon       = 0x03,
67                 .ufcon       = 0x51,
68         },
69         /* IR port */
70         [1] = {
71                 .hwport      = 1,
72                 .flags       = 0,
73                 .uart_flags  = UPF_CONS_FLOW,
74                 .ucon        = 0x2c5,
75                 .ulcon       = 0x43,
76                 .ufcon       = 0x51,
77         },
78         /* On the N30 the bluetooth controller is connected here.
79          * On the N35 and variants the GPS receiver is connected here. */
80         [2] = {
81                 .hwport      = 2,
82                 .flags       = 0,
83                 .ucon        = 0x2c5,
84                 .ulcon       = 0x03,
85                 .ufcon       = 0x51,
86         },
87 };
88
89 static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
90         .vbus_pin               = S3C2410_GPG(1),
91         .vbus_pin_inverted      = 0,
92         .pullup_pin             = S3C2410_GPB(3),
93 };
94
95 static struct gpio_keys_button n30_buttons[] = {
96         {
97                 .gpio           = S3C2410_GPF(0),
98                 .code           = KEY_POWER,
99                 .desc           = "Power",
100                 .active_low     = 0,
101         },
102         {
103                 .gpio           = S3C2410_GPG(9),
104                 .code           = KEY_UP,
105                 .desc           = "Thumbwheel Up",
106                 .active_low     = 0,
107         },
108         {
109                 .gpio           = S3C2410_GPG(8),
110                 .code           = KEY_DOWN,
111                 .desc           = "Thumbwheel Down",
112                 .active_low     = 0,
113         },
114         {
115                 .gpio           = S3C2410_GPG(7),
116                 .code           = KEY_ENTER,
117                 .desc           = "Thumbwheel Press",
118                 .active_low     = 0,
119         },
120         {
121                 .gpio           = S3C2410_GPF(7),
122                 .code           = KEY_HOMEPAGE,
123                 .desc           = "Home",
124                 .active_low     = 0,
125         },
126         {
127                 .gpio           = S3C2410_GPF(6),
128                 .code           = KEY_CALENDAR,
129                 .desc           = "Calendar",
130                 .active_low     = 0,
131         },
132         {
133                 .gpio           = S3C2410_GPF(5),
134                 .code           = KEY_ADDRESSBOOK,
135                 .desc           = "Contacts",
136                 .active_low     = 0,
137         },
138         {
139                 .gpio           = S3C2410_GPF(4),
140                 .code           = KEY_MAIL,
141                 .desc           = "Mail",
142                 .active_low     = 0,
143         },
144 };
145
146 static struct gpio_keys_platform_data n30_button_data = {
147         .buttons        = n30_buttons,
148         .nbuttons       = ARRAY_SIZE(n30_buttons),
149 };
150
151 static struct platform_device n30_button_device = {
152         .name           = "gpio-keys",
153         .id             = -1,
154         .dev            = {
155                 .platform_data  = &n30_button_data,
156         }
157 };
158
159 static struct gpio_keys_button n35_buttons[] = {
160         {
161                 .gpio           = S3C2410_GPF(0),
162                 .code           = KEY_POWER,
163                 .type           = EV_PWR,
164                 .desc           = "Power",
165                 .active_low     = 0,
166                 .wakeup         = 1,
167         },
168         {
169                 .gpio           = S3C2410_GPG(9),
170                 .code           = KEY_UP,
171                 .desc           = "Joystick Up",
172                 .active_low     = 0,
173         },
174         {
175                 .gpio           = S3C2410_GPG(8),
176                 .code           = KEY_DOWN,
177                 .desc           = "Joystick Down",
178                 .active_low     = 0,
179         },
180         {
181                 .gpio           = S3C2410_GPG(6),
182                 .code           = KEY_DOWN,
183                 .desc           = "Joystick Left",
184                 .active_low     = 0,
185         },
186         {
187                 .gpio           = S3C2410_GPG(5),
188                 .code           = KEY_DOWN,
189                 .desc           = "Joystick Right",
190                 .active_low     = 0,
191         },
192         {
193                 .gpio           = S3C2410_GPG(7),
194                 .code           = KEY_ENTER,
195                 .desc           = "Joystick Press",
196                 .active_low     = 0,
197         },
198         {
199                 .gpio           = S3C2410_GPF(7),
200                 .code           = KEY_HOMEPAGE,
201                 .desc           = "Home",
202                 .active_low     = 0,
203         },
204         {
205                 .gpio           = S3C2410_GPF(6),
206                 .code           = KEY_CALENDAR,
207                 .desc           = "Calendar",
208                 .active_low     = 0,
209         },
210         {
211                 .gpio           = S3C2410_GPF(5),
212                 .code           = KEY_ADDRESSBOOK,
213                 .desc           = "Contacts",
214                 .active_low     = 0,
215         },
216         {
217                 .gpio           = S3C2410_GPF(4),
218                 .code           = KEY_MAIL,
219                 .desc           = "Mail",
220                 .active_low     = 0,
221         },
222         {
223                 .gpio           = S3C2410_GPF(3),
224                 .code           = SW_RADIO,
225                 .desc           = "GPS Antenna",
226                 .active_low     = 0,
227         },
228         {
229                 .gpio           = S3C2410_GPG(2),
230                 .code           = SW_HEADPHONE_INSERT,
231                 .desc           = "Headphone",
232                 .active_low     = 0,
233         },
234 };
235
236 static struct gpio_keys_platform_data n35_button_data = {
237         .buttons        = n35_buttons,
238         .nbuttons       = ARRAY_SIZE(n35_buttons),
239 };
240
241 static struct platform_device n35_button_device = {
242         .name           = "gpio-keys",
243         .id             = -1,
244         .num_resources  = 0,
245         .dev            = {
246                 .platform_data  = &n35_button_data,
247         }
248 };
249
250 /* This is the bluetooth LED on the device. */
251 static struct s3c24xx_led_platdata n30_blue_led_pdata = {
252         .name           = "blue_led",
253         .gpio           = S3C2410_GPG(6),
254         .def_trigger    = "",
255 };
256
257 /* This is the blue LED on the device. Originally used to indicate GPS activity
258  * by flashing. */
259 static struct s3c24xx_led_platdata n35_blue_led_pdata = {
260         .name           = "blue_led",
261         .gpio           = S3C2410_GPD(8),
262         .def_trigger    = "",
263 };
264
265 /* This LED is driven by the battery microcontroller, and is blinking
266  * red, blinking green or solid green when the battery is low,
267  * charging or full respectively.  By driving GPD9 low, it's possible
268  * to force the LED to blink red, so call that warning LED.  */
269 static struct s3c24xx_led_platdata n30_warning_led_pdata = {
270         .name           = "warning_led",
271         .flags          = S3C24XX_LEDF_ACTLOW,
272         .gpio           = S3C2410_GPD(9),
273         .def_trigger    = "",
274 };
275
276 static struct s3c24xx_led_platdata n35_warning_led_pdata = {
277         .name           = "warning_led",
278         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
279         .gpio           = S3C2410_GPD(9),
280         .def_trigger    = "",
281 };
282
283 static struct platform_device n30_blue_led = {
284         .name           = "s3c24xx_led",
285         .id             = 1,
286         .dev            = {
287                 .platform_data  = &n30_blue_led_pdata,
288         },
289 };
290
291 static struct platform_device n35_blue_led = {
292         .name           = "s3c24xx_led",
293         .id             = 1,
294         .dev            = {
295                 .platform_data  = &n35_blue_led_pdata,
296         },
297 };
298
299 static struct platform_device n30_warning_led = {
300         .name           = "s3c24xx_led",
301         .id             = 2,
302         .dev            = {
303                 .platform_data  = &n30_warning_led_pdata,
304         },
305 };
306
307 static struct platform_device n35_warning_led = {
308         .name           = "s3c24xx_led",
309         .id             = 2,
310         .dev            = {
311                 .platform_data  = &n35_warning_led_pdata,
312         },
313 };
314
315 static struct s3c2410fb_display n30_display __initdata = {
316         .type           = S3C2410_LCDCON1_TFT,
317         .width          = 240,
318         .height         = 320,
319         .pixclock       = 170000,
320
321         .xres           = 240,
322         .yres           = 320,
323         .bpp            = 16,
324         .left_margin    = 3,
325         .right_margin   = 40,
326         .hsync_len      = 40,
327         .upper_margin   = 2,
328         .lower_margin   = 3,
329         .vsync_len      = 2,
330
331         .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
332 };
333
334 static struct s3c2410fb_mach_info n30_fb_info __initdata = {
335         .displays       = &n30_display,
336         .num_displays   = 1,
337         .default_display = 0,
338         .lpcsel         = 0x06,
339 };
340
341 static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
342 {
343         switch (power_mode) {
344         case MMC_POWER_ON:
345         case MMC_POWER_UP:
346                 gpio_set_value(S3C2410_GPG(4), 1);
347                 break;
348         case MMC_POWER_OFF:
349         default:
350                 gpio_set_value(S3C2410_GPG(4), 0);
351                 break;
352         }
353 }
354
355 static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = {
356         .gpio_detect    = S3C2410_GPF(1),
357         .gpio_wprotect  = S3C2410_GPG(10),
358         .ocr_avail      = MMC_VDD_32_33,
359         .set_power      = n30_sdi_set_power,
360 };
361
362 static struct platform_device *n30_devices[] __initdata = {
363         &s3c_device_lcd,
364         &s3c_device_wdt,
365         &s3c_device_i2c0,
366         &s3c_device_iis,
367         &s3c_device_ohci,
368         &s3c_device_rtc,
369         &s3c_device_usbgadget,
370         &s3c_device_sdi,
371         &n30_button_device,
372         &n30_blue_led,
373         &n30_warning_led,
374 };
375
376 static struct platform_device *n35_devices[] __initdata = {
377         &s3c_device_lcd,
378         &s3c_device_wdt,
379         &s3c_device_i2c0,
380         &s3c_device_iis,
381         &s3c_device_rtc,
382         &s3c_device_usbgadget,
383         &s3c_device_sdi,
384         &n35_button_device,
385         &n35_blue_led,
386         &n35_warning_led,
387 };
388
389 static struct s3c2410_platform_i2c __initdata n30_i2ccfg = {
390         .flags          = 0,
391         .slave_addr     = 0x10,
392         .frequency      = 10*1000,
393 };
394
395 /* Lots of hardcoded stuff, but it sets up the hardware in a useful
396  * state so that we can boot Linux directly from flash. */
397 static void __init n30_hwinit(void)
398 {
399         /* GPA0-11 special functions -- unknown what they do
400          * GPA12 N30 special function -- unknown what it does
401          *       N35/PiN output -- unknown what it does
402          *
403          * A12 is nGCS1 on the N30 and an output on the N35/PiN.  I
404          * don't think it does anything useful on the N30, so I ought
405          * to make it an output there too since it always driven to 0
406          * as far as I can tell. */
407         if (machine_is_n30())
408                 __raw_writel(0x007fffff, S3C2410_GPACON);
409         if (machine_is_n35())
410                 __raw_writel(0x007fefff, S3C2410_GPACON);
411         __raw_writel(0x00000000, S3C2410_GPADAT);
412
413         /* GPB0 TOUT0 backlight level
414          * GPB1 output 1=backlight on
415          * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
416          * GPB3 output USB D+ pull up 0=disabled, 1=enabled
417          * GPB4 N30 output -- unknown function
418          *      N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
419          * GPB5 output -- unknown function
420          * GPB6 input -- unknown function
421          * GPB7 output -- unknown function
422          * GPB8 output -- probably LCD driver enable
423          * GPB9 output -- probably LCD VSYNC driver enable
424          * GPB10 output -- probably LCD HSYNC driver enable
425          */
426         __raw_writel(0x00154556, S3C2410_GPBCON);
427         __raw_writel(0x00000750, S3C2410_GPBDAT);
428         __raw_writel(0x00000073, S3C2410_GPBUP);
429
430         /* GPC0 input RS232 DCD/DSR/RI
431          * GPC1 LCD
432          * GPC2 output RS232 DTR?
433          * GPC3 input RS232 DCD/DSR/RI
434          * GPC4 LCD
435          * GPC5 output 0=NAND write enabled, 1=NAND write protect
436          * GPC6 input -- unknown function
437          * GPC7 input charger status 0=charger connected
438          *      this input can be triggered by power on the USB device
439          *      port too, but will go back to disconnected soon after.
440          * GPC8 N30/N35 output -- unknown function, always driven to 1
441          *      PiN input -- unknown function, always read as 1
442          *      Make it an input with a pull up for all models.
443          * GPC9-15 LCD
444          */
445         __raw_writel(0xaaa80618, S3C2410_GPCCON);
446         __raw_writel(0x0000014c, S3C2410_GPCDAT);
447         __raw_writel(0x0000fef2, S3C2410_GPCUP);
448
449         /* GPD0 input -- unknown function
450          * GPD1-D7 LCD
451          * GPD8 N30 output -- unknown function
452          *      N35/PiN output 1=GPS LED on
453          * GPD9 output 0=power led blinks red, 1=normal power led function
454          * GPD10 output -- unknown function
455          * GPD11-15 LCD drivers
456          */
457         __raw_writel(0xaa95aaa4, S3C2410_GPDCON);
458         __raw_writel(0x00000601, S3C2410_GPDDAT);
459         __raw_writel(0x0000fbfe, S3C2410_GPDUP);
460
461         /* GPE0-4 I2S audio bus
462          * GPE5-10 SD/MMC bus
463          * E11-13 outputs -- unknown function, probably power management
464          * E14-15 I2C bus connected to the battery controller
465          */
466         __raw_writel(0xa56aaaaa, S3C2410_GPECON);
467         __raw_writel(0x0000efc5, S3C2410_GPEDAT);
468         __raw_writel(0x0000f81f, S3C2410_GPEUP);
469
470         /* GPF0  input 0=power button pressed
471          * GPF1  input SD/MMC switch 0=card present
472          * GPF2  N30 1=reset button pressed (inverted compared to the rest)
473          *       N35/PiN 0=reset button pressed
474          * GPF3  N30/PiN input -- unknown function
475          *       N35 input GPS antenna position, 0=antenna closed, 1=open
476          * GPF4  input 0=button 4 pressed
477          * GPF5  input 0=button 3 pressed
478          * GPF6  input 0=button 2 pressed
479          * GPF7  input 0=button 1 pressed
480          */
481         __raw_writel(0x0000aaaa, S3C2410_GPFCON);
482         __raw_writel(0x00000000, S3C2410_GPFDAT);
483         __raw_writel(0x000000ff, S3C2410_GPFUP);
484
485         /* GPG0  input RS232 DCD/DSR/RI
486          * GPG1  input 1=USB gadget port has power from a host
487          * GPG2  N30 input -- unknown function
488          *       N35/PiN input 0=headphones plugged in, 1=not plugged in
489          * GPG3  N30 output -- unknown function
490          *       N35/PiN input with unknown function
491          * GPG4  N30 output 0=MMC enabled, 1=MMC disabled
492          * GPG5  N30 output 0=BlueTooth chip disabled, 1=enabled
493          *       N35/PiN input joystick right
494          * GPG6  N30 output 0=blue led on, 1=off
495          *       N35/PiN input joystick left
496          * GPG7  input 0=thumbwheel pressed
497          * GPG8  input 0=thumbwheel down
498          * GPG9  input 0=thumbwheel up
499          * GPG10 input SD/MMC write protect switch
500          * GPG11 N30 input -- unknown function
501          *       N35 output 0=GPS antenna powered, 1=not powered
502          *       PiN output -- unknown function
503          * GPG12-15 touch screen functions
504          *
505          * The pullups differ between the models, so enable all
506          * pullups that are enabled on any of the models.
507          */
508         if (machine_is_n30())
509                 __raw_writel(0xff0a956a, S3C2410_GPGCON);
510         if (machine_is_n35())
511                 __raw_writel(0xff4aa92a, S3C2410_GPGCON);
512         __raw_writel(0x0000e800, S3C2410_GPGDAT);
513         __raw_writel(0x0000f86f, S3C2410_GPGUP);
514
515         /* GPH0/1/2/3 RS232 serial port
516          * GPH4/5 IrDA serial port
517          * GPH6/7  N30 BlueTooth serial port
518          *         N35/PiN GPS receiver
519          * GPH8 input -- unknown function
520          * GPH9 CLKOUT0 HCLK -- unknown use
521          * GPH10 CLKOUT1 FCLK -- unknown use
522          *
523          * The pull ups for H6/H7 are enabled on N30 but not on the
524          * N35/PiN.  I suppose is useful for a budget model of the N30
525          * with no bluetooh.  It doesn't hurt to have the pull ups
526          * enabled on the N35, so leave them enabled for all models.
527          */
528         __raw_writel(0x0028aaaa, S3C2410_GPHCON);
529         __raw_writel(0x000005ef, S3C2410_GPHDAT);
530         __raw_writel(0x0000063f, S3C2410_GPHUP);
531 }
532
533 static void __init n30_map_io(void)
534 {
535         s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
536         n30_hwinit();
537         s3c24xx_init_clocks(0);
538         s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
539         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
540 }
541
542 /* GPB3 is the line that controls the pull-up for the USB D+ line */
543
544 static void __init n30_init(void)
545 {
546         WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
547
548         s3c24xx_fb_set_platdata(&n30_fb_info);
549         s3c24xx_udc_set_platdata(&n30_udc_cfg);
550         s3c24xx_mci_set_platdata(&n30_mci_cfg);
551         s3c_i2c0_set_platdata(&n30_i2ccfg);
552
553         /* Turn off suspend on both USB ports, and switch the
554          * selectable USB port to USB device mode. */
555
556         s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
557                               S3C2410_MISCCR_USBSUSPND0 |
558                               S3C2410_MISCCR_USBSUSPND1, 0x0);
559
560         if (machine_is_n30()) {
561                 /* Turn off suspend on both USB ports, and switch the
562                  * selectable USB port to USB device mode. */
563                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
564                                       S3C2410_MISCCR_USBSUSPND0 |
565                                       S3C2410_MISCCR_USBSUSPND1, 0x0);
566
567                 platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
568         }
569
570         if (machine_is_n35()) {
571                 /* Turn off suspend and switch the selectable USB port
572                  * to USB device mode.  Turn on suspend for the host
573                  * port since it is not connected on the N35.
574                  *
575                  * Actually, the host port is available at some pads
576                  * on the back of the device, so it would actually be
577                  * possible to add a USB device inside the N35 if you
578                  * are willing to do some hardware modifications. */
579                 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
580                                       S3C2410_MISCCR_USBSUSPND0 |
581                                       S3C2410_MISCCR_USBSUSPND1,
582                                       S3C2410_MISCCR_USBSUSPND0);
583
584                 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
585         }
586 }
587
588 MACHINE_START(N30, "Acer-N30")
589         /* Maintainer: Christer Weinigel <christer@weinigel.se>,
590                                 Ben Dooks <ben-linux@fluff.org>
591         */
592         .atag_offset    = 0x100,
593         .init_time      = samsung_timer_init,
594         .init_machine   = n30_init,
595         .init_irq       = s3c2410_init_irq,
596         .map_io         = n30_map_io,
597         .restart        = s3c2410_restart,
598 MACHINE_END
599
600 MACHINE_START(N35, "Acer-N35")
601         /* Maintainer: Christer Weinigel <christer@weinigel.se>
602         */
603         .atag_offset    = 0x100,
604         .init_time      = samsung_timer_init,
605         .init_machine   = n30_init,
606         .init_irq       = s3c2410_init_irq,
607         .map_io         = n30_map_io,
608         .restart        = s3c2410_restart,
609 MACHINE_END