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
ek_init_early(void)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
ek_add_device_dm9000(void)131 static void __init ek_add_device_dm9000(void)
132 {
133 /* Configure chip-select 2 (DM9000) */
134 sam9_smc_configure(0, 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
ek_add_device_dm9000(void)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 .vbus_pin = {-EINVAL, -EINVAL},
155 .overcurrent_pin= {-EINVAL, -EINVAL},
156 };
157
158
159 /*
160 * USB Device Port
161 */
162 static struct at91_udc_data __initdata ek_udc_data = {
163 .vbus_pin = AT91_PIN_PB29,
164 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
165 };
166
167
168 /*
169 * NAND flash
170 */
171 static struct mtd_partition __initdata ek_nand_partition[] = {
172 {
173 .name = "Partition 1",
174 .offset = 0,
175 .size = SZ_256K,
176 },
177 {
178 .name = "Partition 2",
179 .offset = MTDPART_OFS_NXTBLK,
180 .size = MTDPART_SIZ_FULL,
181 },
182 };
183
184 static struct atmel_nand_data __initdata ek_nand_data = {
185 .ale = 22,
186 .cle = 21,
187 .det_pin = -EINVAL,
188 .rdy_pin = AT91_PIN_PC15,
189 .enable_pin = AT91_PIN_PC14,
190 .parts = ek_nand_partition,
191 .num_parts = ARRAY_SIZE(ek_nand_partition),
192 };
193
194 static struct sam9_smc_config __initdata ek_nand_smc_config = {
195 .ncs_read_setup = 0,
196 .nrd_setup = 1,
197 .ncs_write_setup = 0,
198 .nwe_setup = 1,
199
200 .ncs_read_pulse = 3,
201 .nrd_pulse = 3,
202 .ncs_write_pulse = 3,
203 .nwe_pulse = 3,
204
205 .read_cycle = 5,
206 .write_cycle = 5,
207
208 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
209 .tdf_cycles = 2,
210 };
211
ek_add_device_nand(void)212 static void __init ek_add_device_nand(void)
213 {
214 ek_nand_data.bus_width_16 = board_have_nand_16bit();
215 /* setup bus-width (8 or 16) */
216 if (ek_nand_data.bus_width_16)
217 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
218 else
219 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
220
221 /* configure chip-select 3 (NAND) */
222 sam9_smc_configure(0, 3, &ek_nand_smc_config);
223
224 at91_add_device_nand(&ek_nand_data);
225 }
226
227 /*
228 * SPI related devices
229 */
230 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
231
232 /*
233 * ADS7846 Touchscreen
234 */
235 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
236
ads7843_pendown_state(void)237 static int ads7843_pendown_state(void)
238 {
239 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
240 }
241
242 static struct ads7846_platform_data ads_info = {
243 .model = 7843,
244 .x_min = 150,
245 .x_max = 3830,
246 .y_min = 190,
247 .y_max = 3830,
248 .vref_delay_usecs = 100,
249 .x_plate_ohms = 450,
250 .y_plate_ohms = 250,
251 .pressure_max = 15000,
252 .debounce_max = 1,
253 .debounce_rep = 0,
254 .debounce_tol = (~0),
255 .get_pendown_state = ads7843_pendown_state,
256 };
257
ek_add_device_ts(void)258 static void __init ek_add_device_ts(void)
259 {
260 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
261 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
262 }
263 #else
ek_add_device_ts(void)264 static void __init ek_add_device_ts(void) {}
265 #endif
266
267 /*
268 * Audio
269 */
270 static struct at73c213_board_info at73c213_data = {
271 .ssc_id = 1,
272 #if defined(CONFIG_MACH_AT91SAM9261EK)
273 .shortname = "AT91SAM9261-EK external DAC",
274 #else
275 .shortname = "AT91SAM9G10-EK external DAC",
276 #endif
277 };
278
279 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
at73c213_set_clk(struct at73c213_board_info * info)280 static void __init at73c213_set_clk(struct at73c213_board_info *info)
281 {
282 struct clk *pck2;
283 struct clk *plla;
284
285 pck2 = clk_get(NULL, "pck2");
286 plla = clk_get(NULL, "plla");
287
288 /* AT73C213 MCK Clock */
289 at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
290
291 clk_set_parent(pck2, plla);
292 clk_put(plla);
293
294 info->dac_clk = pck2;
295 }
296 #else
at73c213_set_clk(struct at73c213_board_info * info)297 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
298 #endif
299
300 /*
301 * SPI devices
302 */
303 static struct spi_board_info ek_spi_devices[] = {
304 { /* DataFlash chip */
305 .modalias = "mtd_dataflash",
306 .chip_select = 0,
307 .max_speed_hz = 15 * 1000 * 1000,
308 .bus_num = 0,
309 },
310 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
311 {
312 .modalias = "ads7846",
313 .chip_select = 2,
314 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
315 .bus_num = 0,
316 .platform_data = &ads_info,
317 .irq = AT91SAM9261_ID_IRQ0,
318 .controller_data = (void *) AT91_PIN_PA28, /* CS pin */
319 },
320 #endif
321 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
322 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
323 .modalias = "mtd_dataflash",
324 .chip_select = 3,
325 .max_speed_hz = 15 * 1000 * 1000,
326 .bus_num = 0,
327 },
328 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
329 { /* AT73C213 DAC */
330 .modalias = "at73c213",
331 .chip_select = 3,
332 .max_speed_hz = 10 * 1000 * 1000,
333 .bus_num = 0,
334 .mode = SPI_MODE_1,
335 .platform_data = &at73c213_data,
336 .controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
337 },
338 #endif
339 };
340
341 #else /* CONFIG_SPI_ATMEL_* */
342 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
343
344 /*
345 * MCI (SD/MMC)
346 * det_pin, wp_pin and vcc_pin are not connected
347 */
348 static struct at91_mmc_data __initdata ek_mmc_data = {
349 .wire4 = 1,
350 .det_pin = -EINVAL,
351 .wp_pin = -EINVAL,
352 .vcc_pin = -EINVAL,
353 };
354
355 #endif /* CONFIG_SPI_ATMEL_* */
356
357
358 /*
359 * LCD Controller
360 */
361 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
362
363 #if defined(CONFIG_FB_ATMEL_STN)
364
365 /* STN */
366 static struct fb_videomode at91_stn_modes[] = {
367 {
368 .name = "SP06Q002 @ 75",
369 .refresh = 75,
370 .xres = 320, .yres = 240,
371 .pixclock = KHZ2PICOS(1440),
372
373 .left_margin = 1, .right_margin = 1,
374 .upper_margin = 0, .lower_margin = 0,
375 .hsync_len = 1, .vsync_len = 1,
376
377 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
378 .vmode = FB_VMODE_NONINTERLACED,
379 },
380 };
381
382 static struct fb_monspecs at91fb_default_stn_monspecs = {
383 .manufacturer = "HIT",
384 .monitor = "SP06Q002",
385
386 .modedb = at91_stn_modes,
387 .modedb_len = ARRAY_SIZE(at91_stn_modes),
388 .hfmin = 15000,
389 .hfmax = 64000,
390 .vfmin = 50,
391 .vfmax = 150,
392 };
393
394 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
395 | ATMEL_LCDC_DISTYPE_STNMONO \
396 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
397 | ATMEL_LCDC_IFWIDTH_4 \
398 | ATMEL_LCDC_SCANMOD_SINGLE)
399
at91_lcdc_stn_power_control(int on)400 static void at91_lcdc_stn_power_control(int on)
401 {
402 /* backlight */
403 if (on) { /* power up */
404 at91_set_gpio_value(AT91_PIN_PC14, 0);
405 at91_set_gpio_value(AT91_PIN_PC15, 0);
406 } else { /* power down */
407 at91_set_gpio_value(AT91_PIN_PC14, 1);
408 at91_set_gpio_value(AT91_PIN_PC15, 1);
409 }
410 }
411
412 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
413 .default_bpp = 1,
414 .default_dmacon = ATMEL_LCDC_DMAEN,
415 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
416 .default_monspecs = &at91fb_default_stn_monspecs,
417 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
418 .guard_time = 1,
419 #if defined(CONFIG_MACH_AT91SAM9G10EK)
420 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
421 #endif
422 };
423
424 #else
425
426 /* TFT */
427 static struct fb_videomode at91_tft_vga_modes[] = {
428 {
429 .name = "TX09D50VM1CCA @ 60",
430 .refresh = 60,
431 .xres = 240, .yres = 320,
432 .pixclock = KHZ2PICOS(4965),
433
434 .left_margin = 1, .right_margin = 33,
435 .upper_margin = 1, .lower_margin = 0,
436 .hsync_len = 5, .vsync_len = 1,
437
438 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
439 .vmode = FB_VMODE_NONINTERLACED,
440 },
441 };
442
443 static struct fb_monspecs at91fb_default_tft_monspecs = {
444 .manufacturer = "HIT",
445 .monitor = "TX09D50VM1CCA",
446
447 .modedb = at91_tft_vga_modes,
448 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
449 .hfmin = 15000,
450 .hfmax = 64000,
451 .vfmin = 50,
452 .vfmax = 150,
453 };
454
455 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
456 | ATMEL_LCDC_DISTYPE_TFT \
457 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
458
at91_lcdc_tft_power_control(int on)459 static void at91_lcdc_tft_power_control(int on)
460 {
461 if (on)
462 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
463 else
464 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
465 }
466
467 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
468 .lcdcon_is_backlight = true,
469 .default_bpp = 16,
470 .default_dmacon = ATMEL_LCDC_DMAEN,
471 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
472 .default_monspecs = &at91fb_default_tft_monspecs,
473 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
474 .guard_time = 1,
475 #if defined(CONFIG_MACH_AT91SAM9G10EK)
476 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
477 #endif
478 };
479 #endif
480
481 #else
482 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
483 #endif
484
485
486 /*
487 * GPIO Buttons
488 */
489 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
490 static struct gpio_keys_button ek_buttons[] = {
491 {
492 .gpio = AT91_PIN_PA27,
493 .code = BTN_0,
494 .desc = "Button 0",
495 .active_low = 1,
496 .wakeup = 1,
497 },
498 {
499 .gpio = AT91_PIN_PA26,
500 .code = BTN_1,
501 .desc = "Button 1",
502 .active_low = 1,
503 .wakeup = 1,
504 },
505 {
506 .gpio = AT91_PIN_PA25,
507 .code = BTN_2,
508 .desc = "Button 2",
509 .active_low = 1,
510 .wakeup = 1,
511 },
512 {
513 .gpio = AT91_PIN_PA24,
514 .code = BTN_3,
515 .desc = "Button 3",
516 .active_low = 1,
517 .wakeup = 1,
518 }
519 };
520
521 static struct gpio_keys_platform_data ek_button_data = {
522 .buttons = ek_buttons,
523 .nbuttons = ARRAY_SIZE(ek_buttons),
524 };
525
526 static struct platform_device ek_button_device = {
527 .name = "gpio-keys",
528 .id = -1,
529 .num_resources = 0,
530 .dev = {
531 .platform_data = &ek_button_data,
532 }
533 };
534
ek_add_device_buttons(void)535 static void __init ek_add_device_buttons(void)
536 {
537 at91_set_gpio_input(AT91_PIN_PA27, 1); /* btn0 */
538 at91_set_deglitch(AT91_PIN_PA27, 1);
539 at91_set_gpio_input(AT91_PIN_PA26, 1); /* btn1 */
540 at91_set_deglitch(AT91_PIN_PA26, 1);
541 at91_set_gpio_input(AT91_PIN_PA25, 1); /* btn2 */
542 at91_set_deglitch(AT91_PIN_PA25, 1);
543 at91_set_gpio_input(AT91_PIN_PA24, 1); /* btn3 */
544 at91_set_deglitch(AT91_PIN_PA24, 1);
545
546 platform_device_register(&ek_button_device);
547 }
548 #else
ek_add_device_buttons(void)549 static void __init ek_add_device_buttons(void) {}
550 #endif
551
552 /*
553 * LEDs
554 */
555 static struct gpio_led ek_leds[] = {
556 { /* "bottom" led, green, userled1 to be defined */
557 .name = "ds7",
558 .gpio = AT91_PIN_PA14,
559 .active_low = 1,
560 .default_trigger = "none",
561 },
562 { /* "top" led, green, userled2 to be defined */
563 .name = "ds8",
564 .gpio = AT91_PIN_PA13,
565 .active_low = 1,
566 .default_trigger = "none",
567 },
568 { /* "power" led, yellow */
569 .name = "ds1",
570 .gpio = AT91_PIN_PA23,
571 .default_trigger = "heartbeat",
572 }
573 };
574
ek_board_init(void)575 static void __init ek_board_init(void)
576 {
577 /* Serial */
578 at91_add_device_serial();
579 /* USB Host */
580 at91_add_device_usbh(&ek_usbh_data);
581 /* USB Device */
582 at91_add_device_udc(&ek_udc_data);
583 /* I2C */
584 at91_add_device_i2c(NULL, 0);
585 /* NAND */
586 ek_add_device_nand();
587 /* DM9000 ethernet */
588 ek_add_device_dm9000();
589
590 /* spi0 and mmc/sd share the same PIO pins */
591 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
592 /* SPI */
593 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
594 /* Touchscreen */
595 ek_add_device_ts();
596 /* SSC (to AT73C213) */
597 at73c213_set_clk(&at73c213_data);
598 at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
599 #else
600 /* MMC */
601 at91_add_device_mmc(0, &ek_mmc_data);
602 #endif
603 /* LCD Controller */
604 at91_add_device_lcdc(&ek_lcdc_data);
605 /* Push Buttons */
606 ek_add_device_buttons();
607 /* LEDs */
608 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
609 }
610
611 #if defined(CONFIG_MACH_AT91SAM9261EK)
612 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
613 #else
614 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
615 #endif
616 /* Maintainer: Atmel */
617 .timer = &at91sam926x_timer,
618 .map_io = at91_map_io,
619 .init_early = ek_init_early,
620 .init_irq = at91_init_irq_default,
621 .init_machine = ek_board_init,
622 MACHINE_END
623