33f726ff55e5ec30784400847746129826bea3be
[linux-2.6.git] / arch / arm / mach-pxa / palmt5.c
1 /*
2  * Hardware definitions for Palm Tungsten|T5
3  *
4  * Author:      Marek Vasut <marek.vasut@gmail.com>
5  *
6  * Based on work of:
7  *              Ales Snuparek <snuparek@atlas.cz>
8  *              Justin Kendrick <twilightsentry@gmail.com>
9  *              RichardT5 <richard_t5@users.sourceforge.net>
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License version 2 as
13  * published by the Free Software Foundation.
14  *
15  * (find more info at www.hackndev.com)
16  *
17  */
18
19 #include <linux/platform_device.h>
20 #include <linux/delay.h>
21 #include <linux/irq.h>
22 #include <linux/gpio_keys.h>
23 #include <linux/input.h>
24 #include <linux/pda_power.h>
25 #include <linux/pwm_backlight.h>
26 #include <linux/gpio.h>
27 #include <linux/wm97xx_batt.h>
28 #include <linux/power_supply.h>
29 #include <linux/usb/gpio_vbus.h>
30
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/map.h>
34
35 #include <mach/pxa27x.h>
36 #include <mach/audio.h>
37 #include <mach/palmt5.h>
38 #include <mach/mmc.h>
39 #include <mach/pxafb.h>
40 #include <mach/irda.h>
41 #include <mach/pxa27x_keypad.h>
42 #include <mach/udc.h>
43 #include <mach/palmasoc.h>
44
45 #include "generic.h"
46 #include "devices.h"
47
48 /******************************************************************************
49  * Pin configuration
50  ******************************************************************************/
51 static unsigned long palmt5_pin_config[] __initdata = {
52         /* MMC */
53         GPIO32_MMC_CLK,
54         GPIO92_MMC_DAT_0,
55         GPIO109_MMC_DAT_1,
56         GPIO110_MMC_DAT_2,
57         GPIO111_MMC_DAT_3,
58         GPIO112_MMC_CMD,
59         GPIO14_GPIO,    /* SD detect */
60         GPIO114_GPIO,   /* SD power */
61         GPIO115_GPIO,   /* SD r/o switch */
62
63         /* AC97 */
64         GPIO28_AC97_BITCLK,
65         GPIO29_AC97_SDATA_IN_0,
66         GPIO30_AC97_SDATA_OUT,
67         GPIO31_AC97_SYNC,
68         GPIO89_AC97_SYSCLK,
69         GPIO95_AC97_nRESET,
70
71         /* IrDA */
72         GPIO40_GPIO,    /* ir disable */
73         GPIO46_FICP_RXD,
74         GPIO47_FICP_TXD,
75
76         /* USB */
77         GPIO15_GPIO,    /* usb detect */
78         GPIO93_GPIO,    /* usb power */
79
80         /* MATRIX KEYPAD */
81         GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
82         GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
83         GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
84         GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
85         GPIO103_KP_MKOUT_0,
86         GPIO104_KP_MKOUT_1,
87         GPIO105_KP_MKOUT_2,
88
89         /* LCD */
90         GPIO58_LCD_LDD_0,
91         GPIO59_LCD_LDD_1,
92         GPIO60_LCD_LDD_2,
93         GPIO61_LCD_LDD_3,
94         GPIO62_LCD_LDD_4,
95         GPIO63_LCD_LDD_5,
96         GPIO64_LCD_LDD_6,
97         GPIO65_LCD_LDD_7,
98         GPIO66_LCD_LDD_8,
99         GPIO67_LCD_LDD_9,
100         GPIO68_LCD_LDD_10,
101         GPIO69_LCD_LDD_11,
102         GPIO70_LCD_LDD_12,
103         GPIO71_LCD_LDD_13,
104         GPIO72_LCD_LDD_14,
105         GPIO73_LCD_LDD_15,
106         GPIO74_LCD_FCLK,
107         GPIO75_LCD_LCLK,
108         GPIO76_LCD_PCLK,
109         GPIO77_LCD_BIAS,
110
111         /* PWM */
112         GPIO16_PWM0_OUT,
113
114         /* FFUART */
115         GPIO34_FFUART_RXD,
116         GPIO39_FFUART_TXD,
117
118         /* MISC */
119         GPIO10_GPIO,    /* hotsync button */
120         GPIO90_GPIO,    /* power detect */
121         GPIO107_GPIO,   /* earphone detect */
122 };
123
124 /******************************************************************************
125  * SD/MMC card controller
126  ******************************************************************************/
127 static int palmt5_mci_init(struct device *dev, irq_handler_t palmt5_detect_int,
128                                 void *data)
129 {
130         int err = 0;
131
132         /* Setup an interrupt for detecting card insert/remove events */
133         err = gpio_request(GPIO_NR_PALMT5_SD_DETECT_N, "SD IRQ");
134         if (err)
135                 goto err;
136         err = gpio_direction_input(GPIO_NR_PALMT5_SD_DETECT_N);
137         if (err)
138                 goto err2;
139         err = request_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N),
140                         palmt5_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
141                         IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
142                         "SD/MMC card detect", data);
143         if (err) {
144                 printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
145                                 __func__);
146                 goto err2;
147         }
148
149         err = gpio_request(GPIO_NR_PALMT5_SD_POWER, "SD_POWER");
150         if (err)
151                 goto err3;
152         err = gpio_direction_output(GPIO_NR_PALMT5_SD_POWER, 0);
153         if (err)
154                 goto err4;
155
156         err = gpio_request(GPIO_NR_PALMT5_SD_READONLY, "SD_READONLY");
157         if (err)
158                 goto err4;
159         err = gpio_direction_input(GPIO_NR_PALMT5_SD_READONLY);
160         if (err)
161                 goto err5;
162
163         printk(KERN_DEBUG "%s: irq registered\n", __func__);
164
165         return 0;
166
167 err5:
168         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
169 err4:
170         gpio_free(GPIO_NR_PALMT5_SD_POWER);
171 err3:
172         free_irq(gpio_to_irq(GPIO_NR_PALMT5_SD_DETECT_N), data);
173 err2:
174         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
175 err:
176         return err;
177 }
178
179 static void palmt5_mci_exit(struct device *dev, void *data)
180 {
181         gpio_free(GPIO_NR_PALMT5_SD_READONLY);
182         gpio_free(GPIO_NR_PALMT5_SD_POWER);
183         free_irq(IRQ_GPIO_PALMT5_SD_DETECT_N, data);
184         gpio_free(GPIO_NR_PALMT5_SD_DETECT_N);
185 }
186
187 static void palmt5_mci_power(struct device *dev, unsigned int vdd)
188 {
189         struct pxamci_platform_data *p_d = dev->platform_data;
190         gpio_set_value(GPIO_NR_PALMT5_SD_POWER, p_d->ocr_mask & (1 << vdd));
191 }
192
193 static int palmt5_mci_get_ro(struct device *dev)
194 {
195         return gpio_get_value(GPIO_NR_PALMT5_SD_READONLY);
196 }
197
198 static struct pxamci_platform_data palmt5_mci_platform_data = {
199         .ocr_mask       = MMC_VDD_32_33 | MMC_VDD_33_34,
200         .setpower       = palmt5_mci_power,
201         .get_ro         = palmt5_mci_get_ro,
202         .init           = palmt5_mci_init,
203         .exit           = palmt5_mci_exit,
204 };
205
206 /******************************************************************************
207  * GPIO keyboard
208  ******************************************************************************/
209 static unsigned int palmt5_matrix_keys[] = {
210         KEY(0, 0, KEY_POWER),
211         KEY(0, 1, KEY_F1),
212         KEY(0, 2, KEY_ENTER),
213
214         KEY(1, 0, KEY_F2),
215         KEY(1, 1, KEY_F3),
216         KEY(1, 2, KEY_F4),
217
218         KEY(2, 0, KEY_UP),
219         KEY(2, 2, KEY_DOWN),
220
221         KEY(3, 0, KEY_RIGHT),
222         KEY(3, 2, KEY_LEFT),
223 };
224
225 static struct pxa27x_keypad_platform_data palmt5_keypad_platform_data = {
226         .matrix_key_rows        = 4,
227         .matrix_key_cols        = 3,
228         .matrix_key_map         = palmt5_matrix_keys,
229         .matrix_key_map_size    = ARRAY_SIZE(palmt5_matrix_keys),
230
231         .debounce_interval      = 30,
232 };
233
234 /******************************************************************************
235  * GPIO keys
236  ******************************************************************************/
237 static struct gpio_keys_button palmt5_pxa_buttons[] = {
238         {KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
239 };
240
241 static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
242         .buttons        = palmt5_pxa_buttons,
243         .nbuttons       = ARRAY_SIZE(palmt5_pxa_buttons),
244 };
245
246 static struct platform_device palmt5_pxa_keys = {
247         .name   = "gpio-keys",
248         .id     = -1,
249         .dev    = {
250                 .platform_data = &palmt5_pxa_keys_data,
251         },
252 };
253
254 /******************************************************************************
255  * Backlight
256  ******************************************************************************/
257 static int palmt5_backlight_init(struct device *dev)
258 {
259         int ret;
260
261         ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
262         if (ret)
263                 goto err;
264         ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
265         if (ret)
266                 goto err2;
267         ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
268         if (ret)
269                 goto err2;
270         ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
271         if (ret)
272                 goto err3;
273
274         return 0;
275 err3:
276         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
277 err2:
278         gpio_free(GPIO_NR_PALMT5_BL_POWER);
279 err:
280         return ret;
281 }
282
283 static int palmt5_backlight_notify(int brightness)
284 {
285         gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
286         gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
287         return brightness;
288 }
289
290 static void palmt5_backlight_exit(struct device *dev)
291 {
292         gpio_free(GPIO_NR_PALMT5_BL_POWER);
293         gpio_free(GPIO_NR_PALMT5_LCD_POWER);
294 }
295
296 static struct platform_pwm_backlight_data palmt5_backlight_data = {
297         .pwm_id         = 0,
298         .max_brightness = PALMT5_MAX_INTENSITY,
299         .dft_brightness = PALMT5_MAX_INTENSITY,
300         .pwm_period_ns  = PALMT5_PERIOD_NS,
301         .init           = palmt5_backlight_init,
302         .notify         = palmt5_backlight_notify,
303         .exit           = palmt5_backlight_exit,
304 };
305
306 static struct platform_device palmt5_backlight = {
307         .name   = "pwm-backlight",
308         .dev    = {
309                 .parent         = &pxa27x_device_pwm0.dev,
310                 .platform_data  = &palmt5_backlight_data,
311         },
312 };
313
314 /******************************************************************************
315  * IrDA
316  ******************************************************************************/
317 static int palmt5_irda_startup(struct device *dev)
318 {
319         int err;
320         err = gpio_request(GPIO_NR_PALMT5_IR_DISABLE, "IR DISABLE");
321         if (err)
322                 goto err;
323         err = gpio_direction_output(GPIO_NR_PALMT5_IR_DISABLE, 1);
324         if (err)
325                 gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
326 err:
327         return err;
328 }
329
330 static void palmt5_irda_shutdown(struct device *dev)
331 {
332         gpio_free(GPIO_NR_PALMT5_IR_DISABLE);
333 }
334
335 static void palmt5_irda_transceiver_mode(struct device *dev, int mode)
336 {
337         gpio_set_value(GPIO_NR_PALMT5_IR_DISABLE, mode & IR_OFF);
338         pxa2xx_transceiver_mode(dev, mode);
339 }
340
341 static struct pxaficp_platform_data palmt5_ficp_platform_data = {
342         .startup                = palmt5_irda_startup,
343         .shutdown               = palmt5_irda_shutdown,
344         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
345         .transceiver_mode       = palmt5_irda_transceiver_mode,
346 };
347
348 /******************************************************************************
349  * UDC
350  ******************************************************************************/
351 static struct gpio_vbus_mach_info palmt5_udc_info = {
352         .gpio_vbus              = GPIO_NR_PALMT5_USB_DETECT_N,
353         .gpio_vbus_inverted     = 1,
354         .gpio_pullup            = GPIO_NR_PALMT5_USB_PULLUP,
355 };
356
357 static struct platform_device palmt5_gpio_vbus = {
358         .name   = "gpio-vbus",
359         .id     = -1,
360         .dev    = {
361                 .platform_data  = &palmt5_udc_info,
362         },
363 };
364
365 /******************************************************************************
366  * Power supply
367  ******************************************************************************/
368 static int power_supply_init(struct device *dev)
369 {
370         int ret;
371
372         ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
373         if (ret)
374                 goto err1;
375         ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
376         if (ret)
377                 goto err2;
378
379         return 0;
380 err2:
381         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
382 err1:
383         return ret;
384 }
385
386 static int palmt5_is_ac_online(void)
387 {
388         return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
389 }
390
391 static void power_supply_exit(struct device *dev)
392 {
393         gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
394 }
395
396 static char *palmt5_supplicants[] = {
397         "main-battery",
398 };
399
400 static struct pda_power_pdata power_supply_info = {
401         .init            = power_supply_init,
402         .is_ac_online    = palmt5_is_ac_online,
403         .exit            = power_supply_exit,
404         .supplied_to     = palmt5_supplicants,
405         .num_supplicants = ARRAY_SIZE(palmt5_supplicants),
406 };
407
408 static struct platform_device power_supply = {
409         .name = "pda-power",
410         .id   = -1,
411         .dev  = {
412                 .platform_data = &power_supply_info,
413         },
414 };
415
416 /******************************************************************************
417  * WM97xx battery
418  ******************************************************************************/
419 static struct wm97xx_batt_info wm97xx_batt_pdata = {
420         .batt_aux       = WM97XX_AUX_ID3,
421         .temp_aux       = WM97XX_AUX_ID2,
422         .charge_gpio    = -1,
423         .max_voltage    = PALMT5_BAT_MAX_VOLTAGE,
424         .min_voltage    = PALMT5_BAT_MIN_VOLTAGE,
425         .batt_mult      = 1000,
426         .batt_div       = 414,
427         .temp_mult      = 1,
428         .temp_div       = 1,
429         .batt_tech      = POWER_SUPPLY_TECHNOLOGY_LIPO,
430         .batt_name      = "main-batt",
431 };
432
433 /******************************************************************************
434  * aSoC audio
435  ******************************************************************************/
436 static struct palm27x_asoc_info palmt5_asoc_pdata = {
437         .jack_gpio      = GPIO_NR_PALMT5_EARPHONE_DETECT,
438 };
439
440 static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
441         .reset_gpio     = 95,
442 };
443
444 static struct platform_device palmt5_asoc = {
445         .name = "palm27x-asoc",
446         .id   = -1,
447         .dev  = {
448                 .platform_data = &palmt5_asoc_pdata,
449         },
450 };
451
452 /******************************************************************************
453  * Framebuffer
454  ******************************************************************************/
455 static struct pxafb_mode_info palmt5_lcd_modes[] = {
456 {
457         .pixclock       = 57692,
458         .xres           = 320,
459         .yres           = 480,
460         .bpp            = 16,
461
462         .left_margin    = 32,
463         .right_margin   = 1,
464         .upper_margin   = 7,
465         .lower_margin   = 1,
466
467         .hsync_len      = 4,
468         .vsync_len      = 1,
469 },
470 };
471
472 static struct pxafb_mach_info palmt5_lcd_screen = {
473         .modes          = palmt5_lcd_modes,
474         .num_modes      = ARRAY_SIZE(palmt5_lcd_modes),
475         .lcd_conn       = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
476 };
477
478 /******************************************************************************
479  * Power management - standby
480  ******************************************************************************/
481 static void __init palmt5_pm_init(void)
482 {
483         static u32 resume[] = {
484                 0xe3a00101,     /* mov  r0,     #0x40000000 */
485                 0xe380060f,     /* orr  r0, r0, #0x00f00000 */
486                 0xe590f008,     /* ldr  pc, [r0, #0x08] */
487         };
488
489         /* copy the bootloader */
490         memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
491 }
492
493 /******************************************************************************
494  * Machine init
495  ******************************************************************************/
496 static struct platform_device *devices[] __initdata = {
497 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
498         &palmt5_pxa_keys,
499 #endif
500         &palmt5_backlight,
501         &power_supply,
502         &palmt5_asoc,
503         &palmt5_gpio_vbus,
504 };
505
506 /* setup udc GPIOs initial state */
507 static void __init palmt5_udc_init(void)
508 {
509         if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
510                 gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
511                 gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
512         }
513 }
514
515 static void __init palmt5_init(void)
516 {
517         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
518
519         palmt5_pm_init();
520         set_pxa_fb_info(&palmt5_lcd_screen);
521         pxa_set_mci_info(&palmt5_mci_platform_data);
522         palmt5_udc_init();
523         pxa_set_ac97_info(&palmt5_ac97_pdata);
524         pxa_set_ficp_info(&palmt5_ficp_platform_data);
525         pxa_set_keypad_info(&palmt5_keypad_platform_data);
526         wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
527
528         platform_add_devices(devices, ARRAY_SIZE(devices));
529 }
530
531 MACHINE_START(PALMT5, "Palm Tungsten|T5")
532         .phys_io        = PALMT5_PHYS_IO_START,
533         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
534         .boot_params    = 0xa0000100,
535         .map_io         = pxa_map_io,
536         .init_irq       = pxa27x_init_irq,
537         .timer          = &pxa_timer,
538         .init_machine   = palmt5_init
539 MACHINE_END