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ARM: Move platform memory reservations out of generic code
[net-next-2.6.git] / arch / arm / mach-s3c2440 / mach-rx1950.c
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c394f177
VK		 1/* linux/arch/arm/mach-s3c2440/mach-rx1950.c
2 *
3 * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev,
4 * Copyright (c) 2007-2010 Vasily Khoruzhick
5 *
6 * based on smdk2440 written by Ben Dooks
7 *
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.
11 *
12*/
13
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/interrupt.h>
17#include <linux/list.h>
98c672cf 18#include <linux/bootmem.h>
c394f177
VK		 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/pwm_backlight.h>
29#include <linux/pwm.h>
30
31#include <linux/mtd/mtd.h>
32#include <linux/mtd/partitions.h>
33
34#include <linux/mmc/host.h>
35
36#include <asm/mach/arch.h>
37#include <asm/mach/map.h>
38#include <asm/mach-types.h>
39
40#include <mach/regs-gpio.h>
41#include <mach/regs-gpioj.h>
42#include <mach/h1940.h>
43#include <mach/fb.h>
44
45#include <plat/clock.h>
46#include <plat/regs-serial.h>
47#include <plat/regs-iic.h>
48#include <plat/mci.h>
49#include <plat/udc.h>
50#include <plat/nand.h>
51#include <plat/iic.h>
52#include <plat/devs.h>
53#include <plat/cpu.h>
54#include <plat/pm.h>
55#include <plat/irq.h>
56#include <plat/ts.h>
57
58#define LCD_PWM_PERIOD 192960
59#define LCD_PWM_DUTY 127353
60
61static struct map_desc rx1950_iodesc[] __initdata = {
62};
63
64static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
65 [0] = {
66 .name = "fclk",
67 .divisor = 0x0a,
68 .min_baud = 0,
69 .max_baud = 0,
70 },
71};
72
73static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
74 [0] = {
75 .hwport = 0,
76 .flags = 0,
77 .ucon = 0x3c5,
78 .ulcon = 0x03,
79 .ufcon = 0x51,
80 .clocks = rx1950_serial_clocks,
81 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
82 },
83 [1] = {
84 .hwport = 1,
85 .flags = 0,
86 .ucon = 0x3c5,
87 .ulcon = 0x03,
88 .ufcon = 0x51,
89 .clocks = rx1950_serial_clocks,
90 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
91 },
92 /* IR port */
93 [2] = {
94 .hwport = 2,
95 .flags = 0,
96 .ucon = 0x3c5,
97 .ulcon = 0x43,
98 .ufcon = 0xf1,
99 .clocks = rx1950_serial_clocks,
100 .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
101 },
102};
103
104static struct s3c2410fb_display rx1950_display = {
105 .type = S3C2410_LCDCON1_TFT,
106 .width = 240,
107 .height = 320,
108 .xres = 240,
109 .yres = 320,
110 .bpp = 16,
111
112 .pixclock = 260000,
113 .left_margin = 10,
114 .right_margin = 20,
115 .hsync_len = 10,
116 .upper_margin = 2,
117 .lower_margin = 2,
118 .vsync_len = 2,
119
120 .lcdcon5 = S3C2410_LCDCON5_FRM565 |
121 S3C2410_LCDCON5_INVVCLK |
122 S3C2410_LCDCON5_INVVLINE |
123 S3C2410_LCDCON5_INVVFRAME |
124 S3C2410_LCDCON5_HWSWP |
125 (0x02 << 13) |
126 (0x02 << 15),
127
128};
129
130static struct s3c2410fb_mach_info rx1950_lcd_cfg = {
131 .displays = &rx1950_display,
132 .num_displays = 1,
133 .default_display = 0,
134
135 .lpcsel = 0x02,
136 .gpccon = 0xaa9556a9,
137 .gpccon_mask = 0xffc003fc,
138 .gpcup = 0x0000ffff,
139 .gpcup_mask = 0xffffffff,
140
141 .gpdcon = 0xaa90aaa1,
142 .gpdcon_mask = 0xffc0fff0,
143 .gpdup = 0x0000fcfd,
144 .gpdup_mask = 0xffffffff,
145
146};
147
148static struct pwm_device *lcd_pwm;
149
150void rx1950_lcd_power(int enable)
151{
152 int i;
153 static int enabled;
154 if (enabled == enable)
155 return;
156 if (!enable) {
157
158 /* GPC11-GPC15->OUTPUT */
159 for (i = 11; i < 16; i++)
160 gpio_direction_output(S3C2410_GPC(i), 1);
161
162 /* Wait a bit here... */
163 mdelay(100);
164
165 /* GPD2-GPD7->OUTPUT */
166 /* GPD11-GPD15->OUTPUT */
167 /* GPD2-GPD7->1, GPD11-GPD15->1 */
168 for (i = 2; i < 8; i++)
169 gpio_direction_output(S3C2410_GPD(i), 1);
170 for (i = 11; i < 16; i++)
171 gpio_direction_output(S3C2410_GPD(i), 1);
172
173 /* Wait a bit here...*/
174 mdelay(100);
175
176 /* GPB0->OUTPUT, GPB0->0 */
177 gpio_direction_output(S3C2410_GPB(0), 0);
178
179 /* GPC1-GPC4->OUTPUT, GPC1-4->0 */
180 for (i = 1; i < 5; i++)
181 gpio_direction_output(S3C2410_GPC(i), 0);
182
183 /* GPC15-GPC11->0 */
184 for (i = 11; i < 16; i++)
185 gpio_direction_output(S3C2410_GPC(i), 0);
186
187 /* GPD15-GPD11->0, GPD2->GPD7->0 */
188 for (i = 11; i < 16; i++)
189 gpio_direction_output(S3C2410_GPD(i), 0);
190
191 for (i = 2; i < 8; i++)
192 gpio_direction_output(S3C2410_GPD(i), 0);
193
194 /* GPC6->0, GPC7->0, GPC5->0 */
195 gpio_direction_output(S3C2410_GPC(6), 0);
196 gpio_direction_output(S3C2410_GPC(7), 0);
197 gpio_direction_output(S3C2410_GPC(5), 0);
198
199 /* GPB1->OUTPUT, GPB1->0 */
200 gpio_direction_output(S3C2410_GPB(1), 0);
201 pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD);
202 pwm_disable(lcd_pwm);
203
204 /* GPC0->0, GPC10->0 */
205 gpio_direction_output(S3C2410_GPC(0), 0);
206 gpio_direction_output(S3C2410_GPC(10), 0);
207 } else {
208 pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD);
209 pwm_enable(lcd_pwm);
210
211 gpio_direction_output(S3C2410_GPC(0), 1);
212 gpio_direction_output(S3C2410_GPC(5), 1);
213
214 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1);
215 gpio_direction_output(S3C2410_GPC(7), 1);
216
217 for (i = 1; i < 5; i++)
218 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
219
220 for (i = 11; i < 16; i++)
221 s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2));
222
223 for (i = 2; i < 8; i++)
224 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
225
226 for (i = 11; i < 16; i++)
227 s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2));
228
229 gpio_direction_output(S3C2410_GPC(10), 1);
230 gpio_direction_output(S3C2410_GPC(6), 1);
231 }
232 enabled = enable;
233}
234
235static void rx1950_bl_power(int enable)
236{
237 static int enabled;
238 if (enabled == enable)
239 return;
240 if (!enable) {
241 gpio_direction_output(S3C2410_GPB(0), 0);
242 } else {
243 /* LED driver need a "push" to power on */
244 gpio_direction_output(S3C2410_GPB(0), 1);
245 /* Warm up backlight for one period of PWM.
246 * Without this trick its almost impossible to
247 * enable backlight with low brightness value
248 */
249 ndelay(48000);
250 s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
251 }
252 enabled = enable;
253}
254
255static int rx1950_backlight_init(struct device *dev)
256{
257 WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight"));
258 lcd_pwm = pwm_request(1, "RX1950 LCD");
259 if (IS_ERR(lcd_pwm)) {
260 dev_err(dev, "Unable to request PWM for LCD power!\n");
261 return PTR_ERR(lcd_pwm);
262 }
263
264 rx1950_lcd_power(1);
265 rx1950_bl_power(1);
266
267 return 0;
268}
269
270static void rx1950_backlight_exit(struct device *dev)
271{
272 rx1950_bl_power(0);
273 rx1950_lcd_power(0);
274
275 pwm_free(lcd_pwm);
276 gpio_free(S3C2410_GPB(0));
277}
278
279
280static int rx1950_backlight_notify(struct device *dev, int brightness)
281{
282 if (!brightness) {
283 rx1950_bl_power(0);
284 rx1950_lcd_power(0);
285 } else {
286 rx1950_lcd_power(1);
287 rx1950_bl_power(1);
288 }
289 return brightness;
290}
291
292static struct platform_pwm_backlight_data rx1950_backlight_data = {
293 .pwm_id = 0,
294 .max_brightness = 24,
295 .dft_brightness = 4,
296 .pwm_period_ns = 48000,
297 .init = rx1950_backlight_init,
298 .notify = rx1950_backlight_notify,
299 .exit = rx1950_backlight_exit,
300};
301
302static struct platform_device rx1950_backlight = {
303 .name = "pwm-backlight",
304 .dev = {
305 .parent = &s3c_device_timer[0].dev,
306 .platform_data = &rx1950_backlight_data,
307 },
308};
309
310static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd)
311{
312 switch (power_mode) {
313 case MMC_POWER_OFF:
314 gpio_direction_output(S3C2410_GPJ(1), 0);
315 break;
316 case MMC_POWER_UP:
317 case MMC_POWER_ON:
318 gpio_direction_output(S3C2410_GPJ(1), 1);
319 break;
320 default:
321 break;
322 }
323}
324
325static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = {
326 .gpio_detect = S3C2410_GPF(5),
327 .gpio_wprotect = S3C2410_GPH(8),
328 .set_power = rx1950_set_mmc_power,
329 .ocr_avail = MMC_VDD_32_33,
330};
331
332static struct mtd_partition rx1950_nand_part[] = {
333 [0] = {
334 .name = "Boot0",
335 .offset = 0,
336 .size = 0x4000,
337 .mask_flags = MTD_WRITEABLE,
338 },
339 [1] = {
340 .name = "Boot1",
341 .offset = MTDPART_OFS_APPEND,
342 .size = 0x40000,
343 .mask_flags = MTD_WRITEABLE,
344 },
345 [2] = {
346 .name = "Kernel",
347 .offset = MTDPART_OFS_APPEND,
348 .size = 0x300000,
349 .mask_flags = 0,
350 },
351 [3] = {
352 .name = "Filesystem",
353 .offset = MTDPART_OFS_APPEND,
354 .size = MTDPART_SIZ_FULL,
355 .mask_flags = 0,
356 },
357};
358
359static struct s3c2410_nand_set rx1950_nand_sets[] = {
360 [0] = {
361 .name = "Internal",
362 .nr_chips = 1,
363 .nr_partitions = ARRAY_SIZE(rx1950_nand_part),
364 .partitions = rx1950_nand_part,
365 },
366};
367
368static struct s3c2410_platform_nand rx1950_nand_info = {
369 .tacls = 25,
370 .twrph0 = 50,
371 .twrph1 = 15,
372 .nr_sets = ARRAY_SIZE(rx1950_nand_sets),
373 .sets = rx1950_nand_sets,
374};
375
376static void rx1950_udc_pullup(enum s3c2410_udc_cmd_e cmd)
377{
378 switch (cmd) {
379 case S3C2410_UDC_P_ENABLE:
380 gpio_direction_output(S3C2410_GPJ(5), 1);
381 break;
382 case S3C2410_UDC_P_DISABLE:
383 gpio_direction_output(S3C2410_GPJ(5), 0);
384 break;
385 case S3C2410_UDC_P_RESET:
386 break;
387 default:
388 break;
389 }
390}
391
392static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = {
393 .udc_command = rx1950_udc_pullup,
394 .vbus_pin = S3C2410_GPG(5),
395 .vbus_pin_inverted = 1,
396};
397
398static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = {
399 .delay = 10000,
400 .presc = 49,
401 .oversampling_shift = 3,
402};
403
404static struct gpio_keys_button rx1950_gpio_keys_table[] = {
405 {
406 .code = KEY_POWER,
407 .gpio = S3C2410_GPF(0),
408 .active_low = 1,
409 .desc = "Power button",
410 .wakeup = 1,
411 },
412 {
413 .code = KEY_F5,
414 .gpio = S3C2410_GPF(7),
415 .active_low = 1,
416 .desc = "Record button",
417 },
418 {
419 .code = KEY_F1,
420 .gpio = S3C2410_GPG(0),
421 .active_low = 1,
422 .desc = "Calendar button",
423 },
424 {
425 .code = KEY_F2,
426 .gpio = S3C2410_GPG(2),
427 .active_low = 1,
428 .desc = "Contacts button",
429 },
430 {
431 .code = KEY_F3,
432 .gpio = S3C2410_GPG(3),
433 .active_low = 1,
434 .desc = "Mail button",
435 },
436 {
437 .code = KEY_F4,
438 .gpio = S3C2410_GPG(7),
439 .active_low = 1,
440 .desc = "WLAN button",
441 },
442 {
443 .code = KEY_LEFT,
444 .gpio = S3C2410_GPG(10),
445 .active_low = 1,
446 .desc = "Left button",
447 },
448 {
449 .code = KEY_RIGHT,
450 .gpio = S3C2410_GPG(11),
451 .active_low = 1,
452 .desc = "Right button",
453 },
454 {
455 .code = KEY_UP,
456 .gpio = S3C2410_GPG(4),
457 .active_low = 1,
458 .desc = "Up button",
459 },
460 {
461 .code = KEY_DOWN,
462 .gpio = S3C2410_GPG(6),
463 .active_low = 1,
464 .desc = "Down button",
465 },
466 {
467 .code = KEY_ENTER,
468 .gpio = S3C2410_GPG(9),
469 .active_low = 1,
470 .desc = "Ok button"
471 },
472};
473
474static struct gpio_keys_platform_data rx1950_gpio_keys_data = {
475 .buttons = rx1950_gpio_keys_table,
476 .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table),
477};
478
479static struct platform_device rx1950_device_gpiokeys = {
480 .name = "gpio-keys",
481 .dev.platform_data = &rx1950_gpio_keys_data,
482};
483
484static struct s3c2410_platform_i2c rx1950_i2c_data = {
485 .flags = 0,
486 .slave_addr = 0x42,
487 .frequency = 400 * 1000,
488 .sda_delay = S3C2410_IICLC_SDA_DELAY5 | S3C2410_IICLC_FILTER_ON,
489};
490
491static struct platform_device *rx1950_devices[] __initdata = {
492 &s3c_device_lcd,
493 &s3c_device_wdt,
494 &s3c_device_i2c0,
495 &s3c_device_iis,
496 &s3c_device_usbgadget,
497 &s3c_device_rtc,
498 &s3c_device_nand,
499 &s3c_device_sdi,
500 &s3c_device_adc,
501 &s3c_device_ts,
502 &s3c_device_timer[0],
503 &s3c_device_timer[1],
504 &rx1950_backlight,
505 &rx1950_device_gpiokeys,
506};
507
508static struct clk *rx1950_clocks[] __initdata = {
509 &s3c24xx_clkout0,
510 &s3c24xx_clkout1,
511};
512
513static void __init rx1950_map_io(void)
514{
515 s3c24xx_clkout0.parent = &clk_h;
516 s3c24xx_clkout1.parent = &clk_f;
517
518 s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks));
519
520 s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc));
521 s3c24xx_init_clocks(16934000);
522 s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs));
523
524 /* setup PM */
525
526#ifdef CONFIG_PM_H1940
527 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8);
528#endif
529
530 s3c_pm_init();
531}
532
533static void __init rx1950_init_machine(void)
534{
535 int i;
536
537 s3c24xx_fb_set_platdata(&rx1950_lcd_cfg);
538 s3c24xx_udc_set_platdata(&rx1950_udc_cfg);
539 s3c24xx_ts_set_platdata(&rx1950_ts_cfg);
540 s3c24xx_mci_set_platdata(&rx1950_mmc_cfg);
541 s3c_i2c0_set_platdata(&rx1950_i2c_data);
542 s3c_nand_set_platdata(&rx1950_nand_info);
543
544 /* Turn off suspend on both USB ports, and switch the
545 * selectable USB port to USB device mode. */
546 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
547 S3C2410_MISCCR_USBSUSPND0 |
548 S3C2410_MISCCR_USBSUSPND1, 0x0);
549
550 WARN_ON(gpio_request(S3C2410_GPJ(5), "UDC pullup"));
551 gpio_direction_output(S3C2410_GPJ(5), 0);
552
553 /* mmc power is disabled by default */
554 WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power"));
555 gpio_direction_output(S3C2410_GPJ(1), 0);
556
557 for (i = 0; i < 8; i++)
558 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
559
560 for (i = 10; i < 16; i++)
561 WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power"));
562
563 for (i = 2; i < 8; i++)
564 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
565
566 for (i = 11; i < 16; i++)
567 WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power"));
568
569 WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power"));
570
571 platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices));
572}
573
98c672cf
RK		 574/* H1940 and RX3715 need to reserve this for suspend */
575static void __init rx1950_reserve(void)
576{
577 reserve_bootmem(0x30003000, 0x1000, BOOTMEM_DEFAULT);
578 reserve_bootmem(0x30081000, 0x1000, BOOTMEM_DEFAULT);
579}
580
c394f177
VK		 581MACHINE_START(RX1950, "HP iPAQ RX1950")
582 /* Maintainers: Vasily Khoruzhick */
583 .phys_io = S3C2410_PA_UART,
584 .io_pg_offst = (((u32) S3C24XX_VA_UART) >> 18) & 0xfffc,
585 .boot_params = S3C2410_SDRAM_PA + 0x100,
586 .map_io = rx1950_map_io,
98c672cf 587 .reserve = rx1950_reserve,
c394f177
VK		 588 .init_irq = s3c24xx_init_irq,
589 .init_machine = rx1950_init_machine,
590 .timer = &s3c24xx_timer,
591MACHINE_END
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