Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux into...
[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/gpio.h>
24 #include <linux/init.h>
25 #include <linux/mm.h>
26 #include <linux/module.h>
27 #include <linux/platform_device.h>
28 #include <linux/spi/spi.h>
29 #include <linux/spi/ads7846.h>
30 #include <linux/spi/at73c213.h>
31 #include <linux/clk.h>
32 #include <linux/dm9000.h>
33 #include <linux/fb.h>
34 #include <linux/gpio_keys.h>
35 #include <linux/input.h>
36
37 #include <video/atmel_lcdc.h>
38
39 #include <asm/setup.h>
40 #include <asm/mach-types.h>
41 #include <asm/irq.h>
42
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/irq.h>
46
47 #include <mach/hardware.h>
48 #include <mach/board.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         at91_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 /*
73  * DM9000 ethernet device
74  */
75 #if defined(CONFIG_DM9000)
76 static struct resource dm9000_resource[] = {
77         [0] = {
78                 .start  = AT91_CHIPSELECT_2,
79                 .end    = AT91_CHIPSELECT_2 + 3,
80                 .flags  = IORESOURCE_MEM
81         },
82         [1] = {
83                 .start  = AT91_CHIPSELECT_2 + 0x44,
84                 .end    = AT91_CHIPSELECT_2 + 0xFF,
85                 .flags  = IORESOURCE_MEM
86         },
87         [2] = {
88                 .start  = AT91_PIN_PC11,
89                 .end    = AT91_PIN_PC11,
90                 .flags  = IORESOURCE_IRQ
91                         | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
92         }
93 };
94
95 static struct dm9000_plat_data dm9000_platdata = {
96         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
97 };
98
99 static struct platform_device dm9000_device = {
100         .name           = "dm9000",
101         .id             = 0,
102         .num_resources  = ARRAY_SIZE(dm9000_resource),
103         .resource       = dm9000_resource,
104         .dev            = {
105                 .platform_data  = &dm9000_platdata,
106         }
107 };
108
109 /*
110  * SMC timings for the DM9000.
111  * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
112  */
113 static struct sam9_smc_config __initdata dm9000_smc_config = {
114         .ncs_read_setup         = 0,
115         .nrd_setup              = 2,
116         .ncs_write_setup        = 0,
117         .nwe_setup              = 2,
118
119         .ncs_read_pulse         = 8,
120         .nrd_pulse              = 4,
121         .ncs_write_pulse        = 8,
122         .nwe_pulse              = 4,
123
124         .read_cycle             = 16,
125         .write_cycle            = 16,
126
127         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
128         .tdf_cycles             = 1,
129 };
130
131 static void __init ek_add_device_dm9000(void)
132 {
133         /* Configure chip-select 2 (DM9000) */
134         sam9_smc_configure(2, &dm9000_smc_config);
135
136         /* Configure Reset signal as output */
137         at91_set_gpio_output(AT91_PIN_PC10, 0);
138
139         /* Configure Interrupt pin as input, no pull-up */
140         at91_set_gpio_input(AT91_PIN_PC11, 0);
141
142         platform_device_register(&dm9000_device);
143 }
144 #else
145 static void __init ek_add_device_dm9000(void) {}
146 #endif /* CONFIG_DM9000 */
147
148
149 /*
150  * USB Host Port
151  */
152 static struct at91_usbh_data __initdata ek_usbh_data = {
153         .ports          = 2,
154 };
155
156
157 /*
158  * USB Device Port
159  */
160 static struct at91_udc_data __initdata ek_udc_data = {
161         .vbus_pin       = AT91_PIN_PB29,
162         .pullup_pin     = 0,            /* pull-up driven by UDC */
163 };
164
165
166 /*
167  * NAND flash
168  */
169 static struct mtd_partition __initdata ek_nand_partition[] = {
170         {
171                 .name   = "Partition 1",
172                 .offset = 0,
173                 .size   = SZ_256K,
174         },
175         {
176                 .name   = "Partition 2",
177                 .offset = MTDPART_OFS_NXTBLK,
178                 .size   = MTDPART_SIZ_FULL,
179         },
180 };
181
182 static struct atmel_nand_data __initdata ek_nand_data = {
183         .ale            = 22,
184         .cle            = 21,
185 //      .det_pin        = ... not connected
186         .rdy_pin        = AT91_PIN_PC15,
187         .enable_pin     = AT91_PIN_PC14,
188         .parts          = ek_nand_partition,
189         .num_parts      = ARRAY_SIZE(ek_nand_partition),
190 };
191
192 static struct sam9_smc_config __initdata ek_nand_smc_config = {
193         .ncs_read_setup         = 0,
194         .nrd_setup              = 1,
195         .ncs_write_setup        = 0,
196         .nwe_setup              = 1,
197
198         .ncs_read_pulse         = 3,
199         .nrd_pulse              = 3,
200         .ncs_write_pulse        = 3,
201         .nwe_pulse              = 3,
202
203         .read_cycle             = 5,
204         .write_cycle            = 5,
205
206         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
207         .tdf_cycles             = 2,
208 };
209
210 static void __init ek_add_device_nand(void)
211 {
212         ek_nand_data.bus_width_16 = board_have_nand_16bit();
213         /* setup bus-width (8 or 16) */
214         if (ek_nand_data.bus_width_16)
215                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
216         else
217                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
218
219         /* configure chip-select 3 (NAND) */
220         sam9_smc_configure(3, &ek_nand_smc_config);
221
222         at91_add_device_nand(&ek_nand_data);
223 }
224
225 /*
226  * SPI related devices
227  */
228 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
229
230 /*
231  * ADS7846 Touchscreen
232  */
233 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
234
235 static int ads7843_pendown_state(void)
236 {
237         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
238 }
239
240 static struct ads7846_platform_data ads_info = {
241         .model                  = 7843,
242         .x_min                  = 150,
243         .x_max                  = 3830,
244         .y_min                  = 190,
245         .y_max                  = 3830,
246         .vref_delay_usecs       = 100,
247         .x_plate_ohms           = 450,
248         .y_plate_ohms           = 250,
249         .pressure_max           = 15000,
250         .debounce_max           = 1,
251         .debounce_rep           = 0,
252         .debounce_tol           = (~0),
253         .get_pendown_state      = ads7843_pendown_state,
254 };
255
256 static void __init ek_add_device_ts(void)
257 {
258         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
259         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
260 }
261 #else
262 static void __init ek_add_device_ts(void) {}
263 #endif
264
265 /*
266  * Audio
267  */
268 static struct at73c213_board_info at73c213_data = {
269         .ssc_id         = 1,
270 #if defined(CONFIG_MACH_AT91SAM9261EK)
271         .shortname      = "AT91SAM9261-EK external DAC",
272 #else
273         .shortname      = "AT91SAM9G10-EK external DAC",
274 #endif
275 };
276
277 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
278 static void __init at73c213_set_clk(struct at73c213_board_info *info)
279 {
280         struct clk *pck2;
281         struct clk *plla;
282
283         pck2 = clk_get(NULL, "pck2");
284         plla = clk_get(NULL, "plla");
285
286         /* AT73C213 MCK Clock */
287         at91_set_B_periph(AT91_PIN_PB31, 0);    /* PCK2 */
288
289         clk_set_parent(pck2, plla);
290         clk_put(plla);
291
292         info->dac_clk = pck2;
293 }
294 #else
295 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
296 #endif
297
298 /*
299  * SPI devices
300  */
301 static struct spi_board_info ek_spi_devices[] = {
302         {       /* DataFlash chip */
303                 .modalias       = "mtd_dataflash",
304                 .chip_select    = 0,
305                 .max_speed_hz   = 15 * 1000 * 1000,
306                 .bus_num        = 0,
307         },
308 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
309         {
310                 .modalias       = "ads7846",
311                 .chip_select    = 2,
312                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
313                 .bus_num        = 0,
314                 .platform_data  = &ads_info,
315                 .irq            = AT91SAM9261_ID_IRQ0,
316                 .controller_data = (void *) AT91_PIN_PA28,      /* CS pin */
317         },
318 #endif
319 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
320         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
321                 .modalias       = "mtd_dataflash",
322                 .chip_select    = 3,
323                 .max_speed_hz   = 15 * 1000 * 1000,
324                 .bus_num        = 0,
325         },
326 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
327         {       /* AT73C213 DAC */
328                 .modalias       = "at73c213",
329                 .chip_select    = 3,
330                 .max_speed_hz   = 10 * 1000 * 1000,
331                 .bus_num        = 0,
332                 .mode           = SPI_MODE_1,
333                 .platform_data  = &at73c213_data,
334                 .controller_data = (void*) AT91_PIN_PA29,       /* default for CS3 is PA6, but it must be PA29 */
335         },
336 #endif
337 };
338
339 #else /* CONFIG_SPI_ATMEL_* */
340 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
341
342 /*
343  * MCI (SD/MMC)
344  * det_pin, wp_pin and vcc_pin are not connected
345  */
346 static struct at91_mmc_data __initdata ek_mmc_data = {
347         .wire4          = 1,
348 };
349
350 #endif /* CONFIG_SPI_ATMEL_* */
351
352
353 /*
354  * LCD Controller
355  */
356 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
357
358 #if defined(CONFIG_FB_ATMEL_STN)
359
360 /* STN */
361 static struct fb_videomode at91_stn_modes[] = {
362         {
363                 .name           = "SP06Q002 @ 75",
364                 .refresh        = 75,
365                 .xres           = 320,          .yres           = 240,
366                 .pixclock       = KHZ2PICOS(1440),
367
368                 .left_margin    = 1,            .right_margin   = 1,
369                 .upper_margin   = 0,            .lower_margin   = 0,
370                 .hsync_len      = 1,            .vsync_len      = 1,
371
372                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
373                 .vmode          = FB_VMODE_NONINTERLACED,
374         },
375 };
376
377 static struct fb_monspecs at91fb_default_stn_monspecs = {
378         .manufacturer   = "HIT",
379         .monitor        = "SP06Q002",
380
381         .modedb         = at91_stn_modes,
382         .modedb_len     = ARRAY_SIZE(at91_stn_modes),
383         .hfmin          = 15000,
384         .hfmax          = 64000,
385         .vfmin          = 50,
386         .vfmax          = 150,
387 };
388
389 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
390                                         | ATMEL_LCDC_DISTYPE_STNMONO \
391                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
392                                         | ATMEL_LCDC_IFWIDTH_4 \
393                                         | ATMEL_LCDC_SCANMOD_SINGLE)
394
395 static void at91_lcdc_stn_power_control(int on)
396 {
397         /* backlight */
398         if (on) {       /* power up */
399                 at91_set_gpio_value(AT91_PIN_PC14, 0);
400                 at91_set_gpio_value(AT91_PIN_PC15, 0);
401         } else {        /* power down */
402                 at91_set_gpio_value(AT91_PIN_PC14, 1);
403                 at91_set_gpio_value(AT91_PIN_PC15, 1);
404         }
405 }
406
407 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
408         .default_bpp                    = 1,
409         .default_dmacon                 = ATMEL_LCDC_DMAEN,
410         .default_lcdcon2                = AT91SAM9261_DEFAULT_STN_LCDCON2,
411         .default_monspecs               = &at91fb_default_stn_monspecs,
412         .atmel_lcdfb_power_control      = at91_lcdc_stn_power_control,
413         .guard_time                     = 1,
414 #if defined(CONFIG_MACH_AT91SAM9G10EK)
415         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
416 #endif
417 };
418
419 #else
420
421 /* TFT */
422 static struct fb_videomode at91_tft_vga_modes[] = {
423         {
424                 .name           = "TX09D50VM1CCA @ 60",
425                 .refresh        = 60,
426                 .xres           = 240,          .yres           = 320,
427                 .pixclock       = KHZ2PICOS(4965),
428
429                 .left_margin    = 1,            .right_margin   = 33,
430                 .upper_margin   = 1,            .lower_margin   = 0,
431                 .hsync_len      = 5,            .vsync_len      = 1,
432
433                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
434                 .vmode          = FB_VMODE_NONINTERLACED,
435         },
436 };
437
438 static struct fb_monspecs at91fb_default_tft_monspecs = {
439         .manufacturer   = "HIT",
440         .monitor        = "TX09D50VM1CCA",
441
442         .modedb         = at91_tft_vga_modes,
443         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
444         .hfmin          = 15000,
445         .hfmax          = 64000,
446         .vfmin          = 50,
447         .vfmax          = 150,
448 };
449
450 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
451                                         | ATMEL_LCDC_DISTYPE_TFT    \
452                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
453
454 static void at91_lcdc_tft_power_control(int on)
455 {
456         if (on)
457                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
458         else
459                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
460 }
461
462 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
463         .lcdcon_is_backlight            = true,
464         .default_bpp                    = 16,
465         .default_dmacon                 = ATMEL_LCDC_DMAEN,
466         .default_lcdcon2                = AT91SAM9261_DEFAULT_TFT_LCDCON2,
467         .default_monspecs               = &at91fb_default_tft_monspecs,
468         .atmel_lcdfb_power_control      = at91_lcdc_tft_power_control,
469         .guard_time                     = 1,
470 #if defined(CONFIG_MACH_AT91SAM9G10EK)
471         .lcd_wiring_mode                = ATMEL_LCDC_WIRING_RGB,
472 #endif
473 };
474 #endif
475
476 #else
477 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
478 #endif
479
480
481 /*
482  * GPIO Buttons
483  */
484 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
485 static struct gpio_keys_button ek_buttons[] = {
486         {
487                 .gpio           = AT91_PIN_PA27,
488                 .code           = BTN_0,
489                 .desc           = "Button 0",
490                 .active_low     = 1,
491                 .wakeup         = 1,
492         },
493         {
494                 .gpio           = AT91_PIN_PA26,
495                 .code           = BTN_1,
496                 .desc           = "Button 1",
497                 .active_low     = 1,
498                 .wakeup         = 1,
499         },
500         {
501                 .gpio           = AT91_PIN_PA25,
502                 .code           = BTN_2,
503                 .desc           = "Button 2",
504                 .active_low     = 1,
505                 .wakeup         = 1,
506         },
507         {
508                 .gpio           = AT91_PIN_PA24,
509                 .code           = BTN_3,
510                 .desc           = "Button 3",
511                 .active_low     = 1,
512                 .wakeup         = 1,
513         }
514 };
515
516 static struct gpio_keys_platform_data ek_button_data = {
517         .buttons        = ek_buttons,
518         .nbuttons       = ARRAY_SIZE(ek_buttons),
519 };
520
521 static struct platform_device ek_button_device = {
522         .name           = "gpio-keys",
523         .id             = -1,
524         .num_resources  = 0,
525         .dev            = {
526                 .platform_data  = &ek_button_data,
527         }
528 };
529
530 static void __init ek_add_device_buttons(void)
531 {
532         at91_set_gpio_input(AT91_PIN_PA27, 1);  /* btn0 */
533         at91_set_deglitch(AT91_PIN_PA27, 1);
534         at91_set_gpio_input(AT91_PIN_PA26, 1);  /* btn1 */
535         at91_set_deglitch(AT91_PIN_PA26, 1);
536         at91_set_gpio_input(AT91_PIN_PA25, 1);  /* btn2 */
537         at91_set_deglitch(AT91_PIN_PA25, 1);
538         at91_set_gpio_input(AT91_PIN_PA24, 1);  /* btn3 */
539         at91_set_deglitch(AT91_PIN_PA24, 1);
540
541         platform_device_register(&ek_button_device);
542 }
543 #else
544 static void __init ek_add_device_buttons(void) {}
545 #endif
546
547 /*
548  * LEDs
549  */
550 static struct gpio_led ek_leds[] = {
551         {       /* "bottom" led, green, userled1 to be defined */
552                 .name                   = "ds7",
553                 .gpio                   = AT91_PIN_PA14,
554                 .active_low             = 1,
555                 .default_trigger        = "none",
556         },
557         {       /* "top" led, green, userled2 to be defined */
558                 .name                   = "ds8",
559                 .gpio                   = AT91_PIN_PA13,
560                 .active_low             = 1,
561                 .default_trigger        = "none",
562         },
563         {       /* "power" led, yellow */
564                 .name                   = "ds1",
565                 .gpio                   = AT91_PIN_PA23,
566                 .default_trigger        = "heartbeat",
567         }
568 };
569
570 static void __init ek_board_init(void)
571 {
572         /* Serial */
573         at91_add_device_serial();
574         /* USB Host */
575         at91_add_device_usbh(&ek_usbh_data);
576         /* USB Device */
577         at91_add_device_udc(&ek_udc_data);
578         /* I2C */
579         at91_add_device_i2c(NULL, 0);
580         /* NAND */
581         ek_add_device_nand();
582         /* DM9000 ethernet */
583         ek_add_device_dm9000();
584
585         /* spi0 and mmc/sd share the same PIO pins */
586 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
587         /* SPI */
588         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
589         /* Touchscreen */
590         ek_add_device_ts();
591         /* SSC (to AT73C213) */
592         at73c213_set_clk(&at73c213_data);
593         at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
594 #else
595         /* MMC */
596         at91_add_device_mmc(0, &ek_mmc_data);
597 #endif
598         /* LCD Controller */
599         at91_add_device_lcdc(&ek_lcdc_data);
600         /* Push Buttons */
601         ek_add_device_buttons();
602         /* LEDs */
603         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
604 }
605
606 #if defined(CONFIG_MACH_AT91SAM9261EK)
607 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
608 #else
609 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
610 #endif
611         /* Maintainer: Atmel */
612         .timer          = &at91sam926x_timer,
613         .map_io         = at91_map_io,
614         .init_early     = ek_init_early,
615         .init_irq       = at91_init_irq_default,
616         .init_machine   = ek_board_init,
617 MACHINE_END