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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
commitfcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch)
treea57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/mach-s3c2410/mach-n30.c
parent8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff)
Added missing tegra files.HEADmaster
Diffstat (limited to 'arch/arm/mach-s3c2410/mach-n30.c')
-rw-r--r--arch/arm/mach-s3c2410/mach-n30.c604
1 files changed, 604 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
new file mode 100644
index 00000000000..079dcaa602d
--- /dev/null
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -0,0 +1,604 @@
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 <mach/leds-gpio.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 <plat/iic.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 <plat/mci.h>
51#include <plat/s3c2410.h>
52#include <plat/udc.h>
53
54static struct map_desc n30_iodesc[] __initdata = {
55 /* nothing here yet */
56};
57
58static struct s3c2410_uartcfg n30_uartcfgs[] = {
59 /* Normal serial port */
60 [0] = {
61 .hwport = 0,
62 .flags = 0,
63 .ucon = 0x2c5,
64 .ulcon = 0x03,
65 .ufcon = 0x51,
66 },
67 /* IR port */
68 [1] = {
69 .hwport = 1,
70 .flags = 0,
71 .uart_flags = UPF_CONS_FLOW,
72 .ucon = 0x2c5,
73 .ulcon = 0x43,
74 .ufcon = 0x51,
75 },
76 /* On the N30 the bluetooth controller is connected here.
77 * On the N35 and variants the GPS receiver is connected here. */
78 [2] = {
79 .hwport = 2,
80 .flags = 0,
81 .ucon = 0x2c5,
82 .ulcon = 0x03,
83 .ufcon = 0x51,
84 },
85};
86
87static struct s3c2410_udc_mach_info n30_udc_cfg __initdata = {
88 .vbus_pin = S3C2410_GPG(1),
89 .vbus_pin_inverted = 0,
90 .pullup_pin = S3C2410_GPB(3),
91};
92
93static struct gpio_keys_button n30_buttons[] = {
94 {
95 .gpio = S3C2410_GPF(0),
96 .code = KEY_POWER,
97 .desc = "Power",
98 .active_low = 0,
99 },
100 {
101 .gpio = S3C2410_GPG(9),
102 .code = KEY_UP,
103 .desc = "Thumbwheel Up",
104 .active_low = 0,
105 },
106 {
107 .gpio = S3C2410_GPG(8),
108 .code = KEY_DOWN,
109 .desc = "Thumbwheel Down",
110 .active_low = 0,
111 },
112 {
113 .gpio = S3C2410_GPG(7),
114 .code = KEY_ENTER,
115 .desc = "Thumbwheel Press",
116 .active_low = 0,
117 },
118 {
119 .gpio = S3C2410_GPF(7),
120 .code = KEY_HOMEPAGE,
121 .desc = "Home",
122 .active_low = 0,
123 },
124 {
125 .gpio = S3C2410_GPF(6),
126 .code = KEY_CALENDAR,
127 .desc = "Calendar",
128 .active_low = 0,
129 },
130 {
131 .gpio = S3C2410_GPF(5),
132 .code = KEY_ADDRESSBOOK,
133 .desc = "Contacts",
134 .active_low = 0,
135 },
136 {
137 .gpio = S3C2410_GPF(4),
138 .code = KEY_MAIL,
139 .desc = "Mail",
140 .active_low = 0,
141 },
142};
143
144static struct gpio_keys_platform_data n30_button_data = {
145 .buttons = n30_buttons,
146 .nbuttons = ARRAY_SIZE(n30_buttons),
147};
148
149static struct platform_device n30_button_device = {
150 .name = "gpio-keys",
151 .id = -1,
152 .dev = {
153 .platform_data = &n30_button_data,
154 }
155};
156
157static struct gpio_keys_button n35_buttons[] = {
158 {
159 .gpio = S3C2410_GPF(0),
160 .code = KEY_POWER,
161 .type = EV_PWR,
162 .desc = "Power",
163 .active_low = 0,
164 .wakeup = 1,
165 },
166 {
167 .gpio = S3C2410_GPG(9),
168 .code = KEY_UP,
169 .desc = "Joystick Up",
170 .active_low = 0,
171 },
172 {
173 .gpio = S3C2410_GPG(8),
174 .code = KEY_DOWN,
175 .desc = "Joystick Down",
176 .active_low = 0,
177 },
178 {
179 .gpio = S3C2410_GPG(6),
180 .code = KEY_DOWN,
181 .desc = "Joystick Left",
182 .active_low = 0,
183 },
184 {
185 .gpio = S3C2410_GPG(5),
186 .code = KEY_DOWN,
187 .desc = "Joystick Right",
188 .active_low = 0,
189 },
190 {
191 .gpio = S3C2410_GPG(7),
192 .code = KEY_ENTER,
193 .desc = "Joystick Press",
194 .active_low = 0,
195 },
196 {
197 .gpio = S3C2410_GPF(7),
198 .code = KEY_HOMEPAGE,
199 .desc = "Home",
200 .active_low = 0,
201 },
202 {
203 .gpio = S3C2410_GPF(6),
204 .code = KEY_CALENDAR,
205 .desc = "Calendar",
206 .active_low = 0,
207 },
208 {
209 .gpio = S3C2410_GPF(5),
210 .code = KEY_ADDRESSBOOK,
211 .desc = "Contacts",
212 .active_low = 0,
213 },
214 {
215 .gpio = S3C2410_GPF(4),
216 .code = KEY_MAIL,
217 .desc = "Mail",
218 .active_low = 0,
219 },
220 {
221 .gpio = S3C2410_GPF(3),
222 .code = SW_RADIO,
223 .desc = "GPS Antenna",
224 .active_low = 0,
225 },
226 {
227 .gpio = S3C2410_GPG(2),
228 .code = SW_HEADPHONE_INSERT,
229 .desc = "Headphone",
230 .active_low = 0,
231 },
232};
233
234static struct gpio_keys_platform_data n35_button_data = {
235 .buttons = n35_buttons,
236 .nbuttons = ARRAY_SIZE(n35_buttons),
237};
238
239static struct platform_device n35_button_device = {
240 .name = "gpio-keys",
241 .id = -1,
242 .num_resources = 0,
243 .dev = {
244 .platform_data = &n35_button_data,
245 }
246};
247
248/* This is the bluetooth LED on the device. */
249static struct s3c24xx_led_platdata n30_blue_led_pdata = {
250 .name = "blue_led",
251 .gpio = S3C2410_GPG(6),
252 .def_trigger = "",
253};
254
255/* This is the blue LED on the device. Originally used to indicate GPS activity
256 * by flashing. */
257static struct s3c24xx_led_platdata n35_blue_led_pdata = {
258 .name = "blue_led",
259 .gpio = S3C2410_GPD(8),
260 .def_trigger = "",
261};
262
263/* This LED is driven by the battery microcontroller, and is blinking
264 * red, blinking green or solid green when the battery is low,
265 * charging or full respectively. By driving GPD9 low, it's possible
266 * to force the LED to blink red, so call that warning LED. */
267static struct s3c24xx_led_platdata n30_warning_led_pdata = {
268 .name = "warning_led",
269 .flags = S3C24XX_LEDF_ACTLOW,
270 .gpio = S3C2410_GPD(9),
271 .def_trigger = "",
272};
273
274static struct s3c24xx_led_platdata n35_warning_led_pdata = {
275 .name = "warning_led",
276 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
277 .gpio = S3C2410_GPD(9),
278 .def_trigger = "",
279};
280
281static struct platform_device n30_blue_led = {
282 .name = "s3c24xx_led",
283 .id = 1,
284 .dev = {
285 .platform_data = &n30_blue_led_pdata,
286 },
287};
288
289static struct platform_device n35_blue_led = {
290 .name = "s3c24xx_led",
291 .id = 1,
292 .dev = {
293 .platform_data = &n35_blue_led_pdata,
294 },
295};
296
297static struct platform_device n30_warning_led = {
298 .name = "s3c24xx_led",
299 .id = 2,
300 .dev = {
301 .platform_data = &n30_warning_led_pdata,
302 },
303};
304
305static struct platform_device n35_warning_led = {
306 .name = "s3c24xx_led",
307 .id = 2,
308 .dev = {
309 .platform_data = &n35_warning_led_pdata,
310 },
311};
312
313static struct s3c2410fb_display n30_display __initdata = {
314 .type = S3C2410_LCDCON1_TFT,
315 .width = 240,
316 .height = 320,
317 .pixclock = 170000,
318
319 .xres = 240,
320 .yres = 320,
321 .bpp = 16,
322 .left_margin = 3,
323 .right_margin = 40,
324 .hsync_len = 40,
325 .upper_margin = 2,
326 .lower_margin = 3,
327 .vsync_len = 2,
328
329 .lcdcon5 = S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME,
330};
331
332static struct s3c2410fb_mach_info n30_fb_info __initdata = {
333 .displays = &n30_display,
334 .num_displays = 1,
335 .default_display = 0,
336 .lpcsel = 0x06,
337};
338
339static void n30_sdi_set_power(unsigned char power_mode, unsigned short vdd)
340{
341 switch (power_mode) {
342 case MMC_POWER_ON:
343 case MMC_POWER_UP:
344 gpio_set_value(S3C2410_GPG(4), 1);
345 break;
346 case MMC_POWER_OFF:
347 default:
348 gpio_set_value(S3C2410_GPG(4), 0);
349 break;
350 }
351}
352
353static struct s3c24xx_mci_pdata n30_mci_cfg __initdata = {
354 .gpio_detect = S3C2410_GPF(1),
355 .gpio_wprotect = S3C2410_GPG(10),
356 .ocr_avail = MMC_VDD_32_33,
357 .set_power = n30_sdi_set_power,
358};
359
360static struct platform_device *n30_devices[] __initdata = {
361 &s3c_device_lcd,
362 &s3c_device_wdt,
363 &s3c_device_i2c0,
364 &s3c_device_iis,
365 &s3c_device_ohci,
366 &s3c_device_rtc,
367 &s3c_device_usbgadget,
368 &s3c_device_sdi,
369 &n30_button_device,
370 &n30_blue_led,
371 &n30_warning_led,
372};
373
374static struct platform_device *n35_devices[] __initdata = {
375 &s3c_device_lcd,
376 &s3c_device_wdt,
377 &s3c_device_i2c0,
378 &s3c_device_iis,
379 &s3c_device_rtc,
380 &s3c_device_usbgadget,
381 &s3c_device_sdi,
382 &n35_button_device,
383 &n35_blue_led,
384 &n35_warning_led,
385};
386
387static struct s3c2410_platform_i2c __initdata n30_i2ccfg = {
388 .flags = 0,
389 .slave_addr = 0x10,
390 .frequency = 10*1000,
391};
392
393/* Lots of hardcoded stuff, but it sets up the hardware in a useful
394 * state so that we can boot Linux directly from flash. */
395static void __init n30_hwinit(void)
396{
397 /* GPA0-11 special functions -- unknown what they do
398 * GPA12 N30 special function -- unknown what it does
399 * N35/PiN output -- unknown what it does
400 *
401 * A12 is nGCS1 on the N30 and an output on the N35/PiN. I
402 * don't think it does anything useful on the N30, so I ought
403 * to make it an output there too since it always driven to 0
404 * as far as I can tell. */
405 if (machine_is_n30())
406 __raw_writel(0x007fffff, S3C2410_GPACON);
407 if (machine_is_n35())
408 __raw_writel(0x007fefff, S3C2410_GPACON);
409 __raw_writel(0x00000000, S3C2410_GPADAT);
410
411 /* GPB0 TOUT0 backlight level
412 * GPB1 output 1=backlight on
413 * GPB2 output IrDA enable 0=transceiver enabled, 1=disabled
414 * GPB3 output USB D+ pull up 0=disabled, 1=enabled
415 * GPB4 N30 output -- unknown function
416 * N30/PiN GPS control 0=GPS enabled, 1=GPS disabled
417 * GPB5 output -- unknown function
418 * GPB6 input -- unknown function
419 * GPB7 output -- unknown function
420 * GPB8 output -- probably LCD driver enable
421 * GPB9 output -- probably LCD VSYNC driver enable
422 * GPB10 output -- probably LCD HSYNC driver enable
423 */
424 __raw_writel(0x00154556, S3C2410_GPBCON);
425 __raw_writel(0x00000750, S3C2410_GPBDAT);
426 __raw_writel(0x00000073, S3C2410_GPBUP);
427
428 /* GPC0 input RS232 DCD/DSR/RI
429 * GPC1 LCD
430 * GPC2 output RS232 DTR?
431 * GPC3 input RS232 DCD/DSR/RI
432 * GPC4 LCD
433 * GPC5 output 0=NAND write enabled, 1=NAND write protect
434 * GPC6 input -- unknown function
435 * GPC7 input charger status 0=charger connected
436 * this input can be triggered by power on the USB device
437 * port too, but will go back to disconnected soon after.
438 * GPC8 N30/N35 output -- unknown function, always driven to 1
439 * PiN input -- unknown function, always read as 1
440 * Make it an input with a pull up for all models.
441 * GPC9-15 LCD
442 */
443 __raw_writel(0xaaa80618, S3C2410_GPCCON);
444 __raw_writel(0x0000014c, S3C2410_GPCDAT);
445 __raw_writel(0x0000fef2, S3C2410_GPCUP);
446
447 /* GPD0 input -- unknown function
448 * GPD1-D7 LCD
449 * GPD8 N30 output -- unknown function
450 * N35/PiN output 1=GPS LED on
451 * GPD9 output 0=power led blinks red, 1=normal power led function
452 * GPD10 output -- unknown function
453 * GPD11-15 LCD drivers
454 */
455 __raw_writel(0xaa95aaa4, S3C2410_GPDCON);
456 __raw_writel(0x00000601, S3C2410_GPDDAT);
457 __raw_writel(0x0000fbfe, S3C2410_GPDUP);
458
459 /* GPE0-4 I2S audio bus
460 * GPE5-10 SD/MMC bus
461 * E11-13 outputs -- unknown function, probably power management
462 * E14-15 I2C bus connected to the battery controller
463 */
464 __raw_writel(0xa56aaaaa, S3C2410_GPECON);
465 __raw_writel(0x0000efc5, S3C2410_GPEDAT);
466 __raw_writel(0x0000f81f, S3C2410_GPEUP);
467
468 /* GPF0 input 0=power button pressed
469 * GPF1 input SD/MMC switch 0=card present
470 * GPF2 N30 1=reset button pressed (inverted compared to the rest)
471 * N35/PiN 0=reset button pressed
472 * GPF3 N30/PiN input -- unknown function
473 * N35 input GPS antenna position, 0=antenna closed, 1=open
474 * GPF4 input 0=button 4 pressed
475 * GPF5 input 0=button 3 pressed
476 * GPF6 input 0=button 2 pressed
477 * GPF7 input 0=button 1 pressed
478 */
479 __raw_writel(0x0000aaaa, S3C2410_GPFCON);
480 __raw_writel(0x00000000, S3C2410_GPFDAT);
481 __raw_writel(0x000000ff, S3C2410_GPFUP);
482
483 /* GPG0 input RS232 DCD/DSR/RI
484 * GPG1 input 1=USB gadget port has power from a host
485 * GPG2 N30 input -- unknown function
486 * N35/PiN input 0=headphones plugged in, 1=not plugged in
487 * GPG3 N30 output -- unknown function
488 * N35/PiN input with unknown function
489 * GPG4 N30 output 0=MMC enabled, 1=MMC disabled
490 * GPG5 N30 output 0=BlueTooth chip disabled, 1=enabled
491 * N35/PiN input joystick right
492 * GPG6 N30 output 0=blue led on, 1=off
493 * N35/PiN input joystick left
494 * GPG7 input 0=thumbwheel pressed
495 * GPG8 input 0=thumbwheel down
496 * GPG9 input 0=thumbwheel up
497 * GPG10 input SD/MMC write protect switch
498 * GPG11 N30 input -- unknown function
499 * N35 output 0=GPS antenna powered, 1=not powered
500 * PiN output -- unknown function
501 * GPG12-15 touch screen functions
502 *
503 * The pullups differ between the models, so enable all
504 * pullups that are enabled on any of the models.
505 */
506 if (machine_is_n30())
507 __raw_writel(0xff0a956a, S3C2410_GPGCON);
508 if (machine_is_n35())
509 __raw_writel(0xff4aa92a, S3C2410_GPGCON);
510 __raw_writel(0x0000e800, S3C2410_GPGDAT);
511 __raw_writel(0x0000f86f, S3C2410_GPGUP);
512
513 /* GPH0/1/2/3 RS232 serial port
514 * GPH4/5 IrDA serial port
515 * GPH6/7 N30 BlueTooth serial port
516 * N35/PiN GPS receiver
517 * GPH8 input -- unknown function
518 * GPH9 CLKOUT0 HCLK -- unknown use
519 * GPH10 CLKOUT1 FCLK -- unknown use
520 *
521 * The pull ups for H6/H7 are enabled on N30 but not on the
522 * N35/PiN. I suppose is useful for a budget model of the N30
523 * with no bluetooh. It doesn't hurt to have the pull ups
524 * enabled on the N35, so leave them enabled for all models.
525 */
526 __raw_writel(0x0028aaaa, S3C2410_GPHCON);
527 __raw_writel(0x000005ef, S3C2410_GPHDAT);
528 __raw_writel(0x0000063f, S3C2410_GPHUP);
529}
530
531static void __init n30_map_io(void)
532{
533 s3c24xx_init_io(n30_iodesc, ARRAY_SIZE(n30_iodesc));
534 n30_hwinit();
535 s3c24xx_init_clocks(0);
536 s3c24xx_init_uarts(n30_uartcfgs, ARRAY_SIZE(n30_uartcfgs));
537}
538
539/* GPB3 is the line that controls the pull-up for the USB D+ line */
540
541static void __init n30_init(void)
542{
543 WARN_ON(gpio_request(S3C2410_GPG(4), "mmc power"));
544
545 s3c24xx_fb_set_platdata(&n30_fb_info);
546 s3c24xx_udc_set_platdata(&n30_udc_cfg);
547 s3c24xx_mci_set_platdata(&n30_mci_cfg);
548 s3c_i2c0_set_platdata(&n30_i2ccfg);
549
550 /* Turn off suspend on both USB ports, and switch the
551 * selectable USB port to USB device mode. */
552
553 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
554 S3C2410_MISCCR_USBSUSPND0 |
555 S3C2410_MISCCR_USBSUSPND1, 0x0);
556
557 if (machine_is_n30()) {
558 /* Turn off suspend on both USB ports, and switch the
559 * selectable USB port to USB device mode. */
560 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
561 S3C2410_MISCCR_USBSUSPND0 |
562 S3C2410_MISCCR_USBSUSPND1, 0x0);
563
564 platform_add_devices(n30_devices, ARRAY_SIZE(n30_devices));
565 }
566
567 if (machine_is_n35()) {
568 /* Turn off suspend and switch the selectable USB port
569 * to USB device mode. Turn on suspend for the host
570 * port since it is not connected on the N35.
571 *
572 * Actually, the host port is available at some pads
573 * on the back of the device, so it would actually be
574 * possible to add a USB device inside the N35 if you
575 * are willing to do some hardware modifications. */
576 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
577 S3C2410_MISCCR_USBSUSPND0 |
578 S3C2410_MISCCR_USBSUSPND1,
579 S3C2410_MISCCR_USBSUSPND0);
580
581 platform_add_devices(n35_devices, ARRAY_SIZE(n35_devices));
582 }
583}
584
585MACHINE_START(N30, "Acer-N30")
586 /* Maintainer: Christer Weinigel <christer@weinigel.se>,
587 Ben Dooks <ben-linux@fluff.org>
588 */
589 .boot_params = S3C2410_SDRAM_PA + 0x100,
590 .timer = &s3c24xx_timer,
591 .init_machine = n30_init,
592 .init_irq = s3c24xx_init_irq,
593 .map_io = n30_map_io,
594MACHINE_END
595
596MACHINE_START(N35, "Acer-N35")
597 /* Maintainer: Christer Weinigel <christer@weinigel.se>
598 */
599 .boot_params = S3C2410_SDRAM_PA + 0x100,
600 .timer = &s3c24xx_timer,
601 .init_machine = n30_init,
602 .init_irq = s3c24xx_init_irq,
603 .map_io = n30_map_io,
604MACHINE_END
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