Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
[pandora-kernel.git] / arch / arm / mach-at91 / board-sam9261ek.c
1 /*
2  * linux/arch/arm/mach-at91/board-sam9261ek.c
3  *
4  *  Copyright (C) 2005 SAN People
5  *  Copyright (C) 2006 Atmel
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/mm.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/spi/at73c213.h>
30 #include <linux/clk.h>
31 #include <linux/dm9000.h>
32 #include <linux/fb.h>
33 #include <linux/gpio_keys.h>
34 #include <linux/input.h>
35
36 #include <video/atmel_lcdc.h>
37
38 #include <asm/setup.h>
39 #include <asm/mach-types.h>
40 #include <asm/irq.h>
41
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/irq.h>
45
46 #include <mach/hardware.h>
47 #include <mach/board.h>
48 #include <mach/gpio.h>
49 #include <mach/at91sam9_smc.h>
50 #include <mach/at91_shdwc.h>
51 #include <mach/system_rev.h>
52
53 #include "sam9_smc.h"
54 #include "generic.h"
55
56
57 static void __init ek_init_early(void)
58 {
59         /* Initialize processor: 18.432 MHz crystal */
60         at91sam9261_initialize(18432000);
61
62         /* Setup the LEDs */
63         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
64
65         /* DBGU on ttyS0. (Rx & Tx only) */
66         at91_register_uart(0, 0, 0);
67
68         /* set serial console to ttyS0 (ie, DBGU) */
69         at91_set_serial_console(0);
70 }
71
72 static void __init ek_init_irq(void)
73 {
74         at91sam9261_init_interrupts(NULL);
75 }
76
77
78 /*
79  * DM9000 ethernet device
80  */
81 #if defined(CONFIG_DM9000)
82 static struct resource dm9000_resource[] = {
83         [0] = {
84                 .start  = AT91_CHIPSELECT_2,
85                 .end    = AT91_CHIPSELECT_2 + 3,
86                 .flags  = IORESOURCE_MEM
87         },
88         [1] = {
89                 .start  = AT91_CHIPSELECT_2 + 0x44,
90                 .end    = AT91_CHIPSELECT_2 + 0xFF,
91                 .flags  = IORESOURCE_MEM
92         },
93         [2] = {
94                 .start  = AT91_PIN_PC11,
95                 .end    = AT91_PIN_PC11,
96                 .flags  = IORESOURCE_IRQ
97                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
98         }
99 };
100
101 static struct dm9000_plat_data dm9000_platdata = {
102         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
103 };
104
105 static struct platform_device dm9000_device = {
106         .name           = "dm9000",
107         .id             = 0,
108         .num_resources  = ARRAY_SIZE(dm9000_resource),
109         .resource       = dm9000_resource,
110         .dev            = {
111                 .platform_data  = &dm9000_platdata,
112         }
113 };
114
115 /*
116  * SMC timings for the DM9000.
117  * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
118  */
119 static struct sam9_smc_config __initdata dm9000_smc_config = {
120         .ncs_read_setup         = 0,
121         .nrd_setup              = 2,
122         .ncs_write_setup        = 0,
123         .nwe_setup              = 2,
124
125         .ncs_read_pulse         = 8,
126         .nrd_pulse              = 4,
127         .ncs_write_pulse        = 8,
128         .nwe_pulse              = 4,
129
130         .read_cycle             = 16,
131         .write_cycle            = 16,
132
133         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
134         .tdf_cycles             = 1,
135 };
136
137 static void __init ek_add_device_dm9000(void)
138 {
139         /* Configure chip-select 2 (DM9000) */
140         sam9_smc_configure(2, &dm9000_smc_config);
141
142         /* Configure Reset signal as output */
143         at91_set_gpio_output(AT91_PIN_PC10, 0);
144
145         /* Configure Interrupt pin as input, no pull-up */
146         at91_set_gpio_input(AT91_PIN_PC11, 0);
147
148         platform_device_register(&dm9000_device);
149 }
150 #else
151 static void __init ek_add_device_dm9000(void) {}
152 #endif /* CONFIG_DM9000 */
153
154
155 /*
156  * USB Host Port
157  */
158 static struct at91_usbh_data __initdata ek_usbh_data = {
159         .ports          = 2,
160 };
161
162
163 /*
164  * USB Device Port
165  */
166 static struct at91_udc_data __initdata ek_udc_data = {
167         .vbus_pin       = AT91_PIN_PB29,
168         .pullup_pin     = 0,            /* pull-up driven by UDC */
169 };
170
171
172 /*
173  * NAND flash
174  */
175 static struct mtd_partition __initdata ek_nand_partition[] = {
176         {
177                 .name   = "Partition 1",
178                 .offset = 0,
179                 .size   = SZ_256K,
180         },
181         {
182                 .name   = "Partition 2",
183                 .offset = MTDPART_OFS_NXTBLK,
184                 .size   = MTDPART_SIZ_FULL,
185         },
186 };
187
188 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
189 {
190         *num_partitions = ARRAY_SIZE(ek_nand_partition);
191         return ek_nand_partition;
192 }
193
194 static struct atmel_nand_data __initdata ek_nand_data = {
195         .ale            = 22,
196         .cle            = 21,
197 //      .det_pin        = ... not connected
198         .rdy_pin        = AT91_PIN_PC15,
199         .enable_pin     = AT91_PIN_PC14,
200         .partition_info = nand_partitions,
201 };
202
203 static struct sam9_smc_config __initdata ek_nand_smc_config = {
204         .ncs_read_setup         = 0,
205         .nrd_setup              = 1,
206         .ncs_write_setup        = 0,
207         .nwe_setup              = 1,
208
209         .ncs_read_pulse         = 3,
210         .nrd_pulse              = 3,
211         .ncs_write_pulse        = 3,
212         .nwe_pulse              = 3,
213
214         .read_cycle             = 5,
215         .write_cycle            = 5,
216
217         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
218         .tdf_cycles             = 2,
219 };
220
221 static void __init ek_add_device_nand(void)
222 {
223         ek_nand_data.bus_width_16 = !board_have_nand_8bit();
224         /* setup bus-width (8 or 16) */
225         if (ek_nand_data.bus_width_16)
226                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
227         else
228                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
229
230         /* configure chip-select 3 (NAND) */
231         sam9_smc_configure(3, &ek_nand_smc_config);
232
233         at91_add_device_nand(&ek_nand_data);
234 }
235
236 /*
237  * SPI related devices
238  */
239 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
240
241 /*
242  * ADS7846 Touchscreen
243  */
244 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
245
246 static int ads7843_pendown_state(void)
247 {
248         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
249 }
250
251 static struct ads7846_platform_data ads_info = {
252         .model                  = 7843,
253         .x_min                  = 150,
254         .x_max                  = 3830,
255         .y_min                  = 190,
256         .y_max                  = 3830,
257         .vref_delay_usecs       = 100,
258         .x_plate_ohms           = 450,
259         .y_plate_ohms           = 250,
260         .pressure_max           = 15000,
261         .debounce_max           = 1,
262         .debounce_rep           = 0,
263         .debounce_tol           = (~0),
264         .get_pendown_state      = ads7843_pendown_state,
265 };
266
267 static void __init ek_add_device_ts(void)
268 {
269         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
270         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
271 }
272 #else
273 static void __init ek_add_device_ts(void) {}
274 #endif
275
276 /*
277  * Audio
278  */
279 static struct at73c213_board_info at73c213_data = {
280         .ssc_id         = 1,
281 #if defined(CONFIG_MACH_AT91SAM9261EK)
282         .shortname      = "AT91SAM9261-EK external DAC",
283 #else
284         .shortname      = "AT91SAM9G10-EK external DAC",
285 #endif
286 };
287
288 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
289 static void __init at73c213_set_clk(struct at73c213_board_info *info)
290 {
291         struct clk *pck2;
292         struct clk *plla;
293
294         pck2 = clk_get(NULL, "pck2");
295         plla = clk_get(NULL, "plla");
296
297         /* AT73C213 MCK Clock */
298         at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
299
300         clk_set_parent(pck2, plla);
301         clk_put(plla);
302
303         info->dac_clk = pck2;
304 }
305 #else
306 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
307 #endif
308
309 /*
310  * SPI devices
311  */
312 static struct spi_board_info ek_spi_devices[] = {
313         {       /* DataFlash chip */
314                 .modalias       = "mtd_dataflash",
315                 .chip_select    = 0,
316                 .max_speed_hz   = 15 * 1000 * 1000,
317                 .bus_num        = 0,
318         },
319 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
320         {
321                 .modalias       = "ads7846",
322                 .chip_select    = 2,
323                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
324                 .bus_num        = 0,
325                 .platform_data  = &ads_info,
326                 .irq            = AT91SAM9261_ID_IRQ0,
327                 .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
328         },
329 #endif
330 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
331         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
332                 .modalias       = "mtd_dataflash",
333                 .chip_select    = 3,
334                 .max_speed_hz   = 15 * 1000 * 1000,
335                 .bus_num        = 0,
336         },
337 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
338         {       /* AT73C213 DAC */
339                 .modalias       = "at73c213",
340                 .chip_select    = 3,
341                 .max_speed_hz   = 10 * 1000 * 1000,
342                 .bus_num        = 0,
343                 .mode           = SPI_MODE_1,
344                 .platform_data  = &at73c213_data,
345                 .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
346         },
347 #endif
348 };
349
350 #else /* CONFIG_SPI_ATMEL_* */
351 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
352
353 /*
354  * MCI (SD/MMC)
355  * det_pin, wp_pin and vcc_pin are not connected
356  */
357 static struct at91_mmc_data __initdata ek_mmc_data = {
358         .wire4          = 1,
359 };
360
361 #endif /* CONFIG_SPI_ATMEL_* */
362
363
364 /*
365  * LCD Controller
366  */
367 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
368
369 #if defined(CONFIG_FB_ATMEL_STN)
370
371 /* STN */
372 static struct fb_videomode at91_stn_modes[] = {
373         {
374                 .name           = "SP06Q002 @ 75",
375                 .refresh        = 75,
376                 .xres           = 320,          .yres           = 240,
377                 .pixclock       = KHZ2PICOS(1440),
378
379                 .left_margin    = 1,            .right_margin   = 1,
380                 .upper_margin   = 0,            .lower_margin   = 0,
381                 .hsync_len      = 1,            .vsync_len      = 1,
382
383                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
384                 .vmode          = FB_VMODE_NONINTERLACED,
385         },
386 };
387
388 static struct fb_monspecs at91fb_default_stn_monspecs = {
389         .manufacturer   = "HIT",
390         .monitor        = "SP06Q002",
391
392         .modedb         = at91_stn_modes,
393         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
394         .hfmin          = 15000,
395         .hfmax          = 64000,
396         .vfmin          = 50,
397         .vfmax          = 150,
398 };
399
400 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
401                                         | ATMEL_LCDC_DISTYPE_STNMONO \
402                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
403                                         | ATMEL_LCDC_IFWIDTH_4 \
404                                         | ATMEL_LCDC_SCANMOD_SINGLE)
405
406 static void at91_lcdc_stn_power_control(int on)
407 {
408         /* backlight */
409         if (on) {       /* power up */
410                 at91_set_gpio_value(AT91_PIN_PC14, 0);
411                 at91_set_gpio_value(AT91_PIN_PC15, 0);
412         } else {        /* power down */
413                 at91_set_gpio_value(AT91_PIN_PC14, 1);
414                 at91_set_gpio_value(AT91_PIN_PC15, 1);
415         }
416 }
417
418 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
419         .default_bpp                    = 1,
420         .default_dmacon                 = ATMEL_LCDC_DMAEN,
421         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
422         .default_monspecs               = &at91fb_default_stn_monspecs,
423         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
424         .guard_time                     = 1,
425 #if defined(CONFIG_MACH_AT91SAM9G10EK)
426         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
427 #endif
428 };
429
430 #else
431
432 /* TFT */
433 static struct fb_videomode at91_tft_vga_modes[] = {
434         {
435                 .name           = "TX09D50VM1CCA @ 60",
436                 .refresh        = 60,
437                 .xres           = 240,          .yres           = 320,
438                 .pixclock       = KHZ2PICOS(4965),
439
440                 .left_margin    = 1,            .right_margin   = 33,
441                 .upper_margin   = 1,            .lower_margin   = 0,
442                 .hsync_len      = 5,            .vsync_len      = 1,
443
444                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
445                 .vmode          = FB_VMODE_NONINTERLACED,
446         },
447 };
448
449 static struct fb_monspecs at91fb_default_tft_monspecs = {
450         .manufacturer   = "HIT",
451         .monitor        = "TX09D50VM1CCA",
452
453         .modedb         = at91_tft_vga_modes,
454         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
455         .hfmin          = 15000,
456         .hfmax          = 64000,
457         .vfmin          = 50,
458         .vfmax          = 150,
459 };
460
461 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
462                                         | ATMEL_LCDC_DISTYPE_TFT    \
463                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
464
465 static void at91_lcdc_tft_power_control(int on)
466 {
467         if (on)
468                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
469         else
470                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
471 }
472
473 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
474         .lcdcon_is_backlight            = true,
475         .default_bpp                    = 16,
476         .default_dmacon                 = ATMEL_LCDC_DMAEN,
477         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
478         .default_monspecs               = &at91fb_default_tft_monspecs,
479         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
480         .guard_time                     = 1,
481 #if defined(CONFIG_MACH_AT91SAM9G10EK)
482         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
483 #endif
484 };
485 #endif
486
487 #else
488 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
489 #endif
490
491
492 /*
493  * GPIO Buttons
494  */
495 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
496 static struct gpio_keys_button ek_buttons[] = {
497         {
498                 .gpio           = AT91_PIN_PA27,
499                 .code           = BTN_0,
500                 .desc           = "Button 0",
501                 .active_low     = 1,
502                 .wakeup         = 1,
503         },
504         {
505                 .gpio           = AT91_PIN_PA26,
506                 .code           = BTN_1,
507                 .desc           = "Button 1",
508                 .active_low     = 1,
509                 .wakeup         = 1,
510         },
511         {
512                 .gpio           = AT91_PIN_PA25,
513                 .code           = BTN_2,
514                 .desc           = "Button 2",
515                 .active_low     = 1,
516                 .wakeup         = 1,
517         },
518         {
519                 .gpio           = AT91_PIN_PA24,
520                 .code           = BTN_3,
521                 .desc           = "Button 3",
522                 .active_low     = 1,
523                 .wakeup         = 1,
524         }
525 };
526
527 static struct gpio_keys_platform_data ek_button_data = {
528         .buttons        = ek_buttons,
529         .nbuttons       = ARRAY_SIZE(ek_buttons),
530 };
531
532 static struct platform_device ek_button_device = {
533         .name           = "gpio-keys",
534         .id             = -1,
535         .num_resources  = 0,
536         .dev            = {
537                 .platform_data  = &ek_button_data,
538         }
539 };
540
541 static void __init ek_add_device_buttons(void)
542 {
543         at91_set_gpio_input(AT91_PIN_PA27, 1);  /* btn0 */
544         at91_set_deglitch(AT91_PIN_PA27, 1);
545         at91_set_gpio_input(AT91_PIN_PA26, 1);  /* btn1 */
546         at91_set_deglitch(AT91_PIN_PA26, 1);
547         at91_set_gpio_input(AT91_PIN_PA25, 1);  /* btn2 */
548         at91_set_deglitch(AT91_PIN_PA25, 1);
549         at91_set_gpio_input(AT91_PIN_PA24, 1);  /* btn3 */
550         at91_set_deglitch(AT91_PIN_PA24, 1);
551
552         platform_device_register(&ek_button_device);
553 }
554 #else
555 static void __init ek_add_device_buttons(void) {}
556 #endif
557
558 /*
559  * LEDs
560  */
561 static struct gpio_led ek_leds[] = {
562         {       /* "bottom" led, green, userled1 to be defined */
563                 .name                   = "ds7",
564                 .gpio                   = AT91_PIN_PA14,
565                 .active_low             = 1,
566                 .default_trigger        = "none",
567         },
568         {       /* "top" led, green, userled2 to be defined */
569                 .name                   = "ds8",
570                 .gpio                   = AT91_PIN_PA13,
571                 .active_low             = 1,
572                 .default_trigger        = "none",
573         },
574         {       /* "power" led, yellow */
575                 .name                   = "ds1",
576                 .gpio                   = AT91_PIN_PA23,
577                 .default_trigger        = "heartbeat",
578         }
579 };
580
581 static void __init ek_board_init(void)
582 {
583         /* Serial */
584         at91_add_device_serial();
585         /* USB Host */
586         at91_add_device_usbh(&ek_usbh_data);
587         /* USB Device */
588         at91_add_device_udc(&ek_udc_data);
589         /* I2C */
590         at91_add_device_i2c(NULL, 0);
591         /* NAND */
592         ek_add_device_nand();
593         /* DM9000 ethernet */
594         ek_add_device_dm9000();
595
596         /* spi0 and mmc/sd share the same PIO pins */
597 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
598         /* SPI */
599         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
600         /* Touchscreen */
601         ek_add_device_ts();
602         /* SSC (to AT73C213) */
603         at73c213_set_clk(&at73c213_data);
604         at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
605 #else
606         /* MMC */
607         at91_add_device_mmc(0, &ek_mmc_data);
608 #endif
609         /* LCD Controller */
610         at91_add_device_lcdc(&ek_lcdc_data);
611         /* Push Buttons */
612         ek_add_device_buttons();
613         /* LEDs */
614         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
615 }
616
617 #if defined(CONFIG_MACH_AT91SAM9261EK)
618 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
619 #else
620 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
621 #endif
622         /* Maintainer: Atmel */
623         .timer          = &at91sam926x_timer,
624         .map_io         = at91sam9261_map_io,
625         .init_early     = ek_init_early,
626         .init_irq       = ek_init_irq,
627         .init_machine   = ek_board_init,
628 MACHINE_END