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/at91sam9_smc.h>
49 #include <mach/system_rev.h>
50
51 #include "at91_aic.h"
52 #include "board.h"
53 #include "sam9_smc.h"
54 #include "generic.h"
55 #include "gpio.h"
56
57
ek_init_early(void)58 static void __init ek_init_early(void)
59 {
60 /* Initialize processor: 18.432 MHz crystal */
61 at91_initialize(18432000);
62 }
63
64 /*
65 * DM9000 ethernet device
66 */
67 #if defined(CONFIG_DM9000)
68 static struct resource dm9000_resource[] = {
69 [0] = {
70 .start = AT91_CHIPSELECT_2,
71 .end = AT91_CHIPSELECT_2 + 3,
72 .flags = IORESOURCE_MEM
73 },
74 [1] = {
75 .start = AT91_CHIPSELECT_2 + 0x44,
76 .end = AT91_CHIPSELECT_2 + 0xFF,
77 .flags = IORESOURCE_MEM
78 },
79 [2] = {
80 .flags = IORESOURCE_IRQ
81 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
82 }
83 };
84
85 static struct dm9000_plat_data dm9000_platdata = {
86 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
87 };
88
89 static struct platform_device dm9000_device = {
90 .name = "dm9000",
91 .id = 0,
92 .num_resources = ARRAY_SIZE(dm9000_resource),
93 .resource = dm9000_resource,
94 .dev = {
95 .platform_data = &dm9000_platdata,
96 }
97 };
98
99 /*
100 * SMC timings for the DM9000.
101 * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
102 */
103 static struct sam9_smc_config __initdata dm9000_smc_config = {
104 .ncs_read_setup = 0,
105 .nrd_setup = 2,
106 .ncs_write_setup = 0,
107 .nwe_setup = 2,
108
109 .ncs_read_pulse = 8,
110 .nrd_pulse = 4,
111 .ncs_write_pulse = 8,
112 .nwe_pulse = 4,
113
114 .read_cycle = 16,
115 .write_cycle = 16,
116
117 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
118 .tdf_cycles = 1,
119 };
120
ek_add_device_dm9000(void)121 static void __init ek_add_device_dm9000(void)
122 {
123 struct resource *r = &dm9000_resource[2];
124
125 /* Configure chip-select 2 (DM9000) */
126 sam9_smc_configure(0, 2, &dm9000_smc_config);
127
128 /* Configure Reset signal as output */
129 at91_set_gpio_output(AT91_PIN_PC10, 0);
130
131 /* Configure Interrupt pin as input, no pull-up */
132 at91_set_gpio_input(AT91_PIN_PC11, 0);
133
134 r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
135 platform_device_register(&dm9000_device);
136 }
137 #else
ek_add_device_dm9000(void)138 static void __init ek_add_device_dm9000(void) {}
139 #endif /* CONFIG_DM9000 */
140
141
142 /*
143 * USB Host Port
144 */
145 static struct at91_usbh_data __initdata ek_usbh_data = {
146 .ports = 2,
147 .vbus_pin = {-EINVAL, -EINVAL},
148 .overcurrent_pin= {-EINVAL, -EINVAL},
149 };
150
151
152 /*
153 * USB Device Port
154 */
155 static struct at91_udc_data __initdata ek_udc_data = {
156 .vbus_pin = AT91_PIN_PB29,
157 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
158 };
159
160
161 /*
162 * NAND flash
163 */
164 static struct mtd_partition __initdata ek_nand_partition[] = {
165 {
166 .name = "Partition 1",
167 .offset = 0,
168 .size = SZ_256K,
169 },
170 {
171 .name = "Partition 2",
172 .offset = MTDPART_OFS_NXTBLK,
173 .size = MTDPART_SIZ_FULL,
174 },
175 };
176
177 static struct atmel_nand_data __initdata ek_nand_data = {
178 .ale = 22,
179 .cle = 21,
180 .det_pin = -EINVAL,
181 .rdy_pin = AT91_PIN_PC15,
182 .enable_pin = AT91_PIN_PC14,
183 .ecc_mode = NAND_ECC_SOFT,
184 .on_flash_bbt = 1,
185 .parts = ek_nand_partition,
186 .num_parts = ARRAY_SIZE(ek_nand_partition),
187 };
188
189 static struct sam9_smc_config __initdata ek_nand_smc_config = {
190 .ncs_read_setup = 0,
191 .nrd_setup = 1,
192 .ncs_write_setup = 0,
193 .nwe_setup = 1,
194
195 .ncs_read_pulse = 3,
196 .nrd_pulse = 3,
197 .ncs_write_pulse = 3,
198 .nwe_pulse = 3,
199
200 .read_cycle = 5,
201 .write_cycle = 5,
202
203 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
204 .tdf_cycles = 2,
205 };
206
ek_add_device_nand(void)207 static void __init ek_add_device_nand(void)
208 {
209 ek_nand_data.bus_width_16 = board_have_nand_16bit();
210 /* setup bus-width (8 or 16) */
211 if (ek_nand_data.bus_width_16)
212 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
213 else
214 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
215
216 /* configure chip-select 3 (NAND) */
217 sam9_smc_configure(0, 3, &ek_nand_smc_config);
218
219 at91_add_device_nand(&ek_nand_data);
220 }
221
222 /*
223 * SPI related devices
224 */
225 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
226
227 /*
228 * ADS7846 Touchscreen
229 */
230 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
231
ads7843_pendown_state(void)232 static int ads7843_pendown_state(void)
233 {
234 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
235 }
236
237 static struct ads7846_platform_data ads_info = {
238 .model = 7843,
239 .x_min = 150,
240 .x_max = 3830,
241 .y_min = 190,
242 .y_max = 3830,
243 .vref_delay_usecs = 100,
244 .x_plate_ohms = 450,
245 .y_plate_ohms = 250,
246 .pressure_max = 15000,
247 .debounce_max = 1,
248 .debounce_rep = 0,
249 .debounce_tol = (~0),
250 .get_pendown_state = ads7843_pendown_state,
251 };
252
ek_add_device_ts(void)253 static void __init ek_add_device_ts(void)
254 {
255 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
256 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
257 }
258 #else
ek_add_device_ts(void)259 static void __init ek_add_device_ts(void) {}
260 #endif
261
262 /*
263 * Audio
264 */
265 static struct at73c213_board_info at73c213_data = {
266 .ssc_id = 1,
267 .shortname = "AT91SAM9261/9G10-EK external DAC",
268 };
269
270 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
at73c213_set_clk(struct at73c213_board_info * info)271 static void __init at73c213_set_clk(struct at73c213_board_info *info)
272 {
273 struct clk *pck2;
274 struct clk *plla;
275
276 pck2 = clk_get(NULL, "pck2");
277 plla = clk_get(NULL, "plla");
278
279 /* AT73C213 MCK Clock */
280 at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
281
282 clk_set_parent(pck2, plla);
283 clk_put(plla);
284
285 info->dac_clk = pck2;
286 }
287 #else
at73c213_set_clk(struct at73c213_board_info * info)288 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
289 #endif
290
291 /*
292 * SPI devices
293 */
294 static struct spi_board_info ek_spi_devices[] = {
295 { /* DataFlash chip */
296 .modalias = "mtd_dataflash",
297 .chip_select = 0,
298 .max_speed_hz = 15 * 1000 * 1000,
299 .bus_num = 0,
300 },
301 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
302 {
303 .modalias = "ads7846",
304 .chip_select = 2,
305 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
306 .bus_num = 0,
307 .platform_data = &ads_info,
308 .irq = NR_IRQS_LEGACY + AT91SAM9261_ID_IRQ0,
309 .controller_data = (void *) AT91_PIN_PA28, /* CS pin */
310 },
311 #endif
312 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
313 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
314 .modalias = "mtd_dataflash",
315 .chip_select = 3,
316 .max_speed_hz = 15 * 1000 * 1000,
317 .bus_num = 0,
318 },
319 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
320 { /* AT73C213 DAC */
321 .modalias = "at73c213",
322 .chip_select = 3,
323 .max_speed_hz = 10 * 1000 * 1000,
324 .bus_num = 0,
325 .mode = SPI_MODE_1,
326 .platform_data = &at73c213_data,
327 .controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
328 },
329 #endif
330 };
331
332 #else /* CONFIG_SPI_ATMEL_* */
333 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
334
335 /*
336 * MCI (SD/MMC)
337 * det_pin, wp_pin and vcc_pin are not connected
338 */
339 static struct mci_platform_data __initdata mci0_data = {
340 .slot[0] = {
341 .bus_width = 4,
342 .detect_pin = -EINVAL,
343 .wp_pin = -EINVAL,
344 },
345 };
346
347 #endif /* CONFIG_SPI_ATMEL_* */
348
349
350 /*
351 * LCD Controller
352 */
353 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
354
355 #if defined(CONFIG_FB_ATMEL_STN)
356
357 /* STN */
358 static struct fb_videomode at91_stn_modes[] = {
359 {
360 .name = "SP06Q002 @ 75",
361 .refresh = 75,
362 .xres = 320, .yres = 240,
363 .pixclock = KHZ2PICOS(1440),
364
365 .left_margin = 1, .right_margin = 1,
366 .upper_margin = 0, .lower_margin = 0,
367 .hsync_len = 1, .vsync_len = 1,
368
369 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
370 .vmode = FB_VMODE_NONINTERLACED,
371 },
372 };
373
374 static struct fb_monspecs at91fb_default_stn_monspecs = {
375 .manufacturer = "HIT",
376 .monitor = "SP06Q002",
377
378 .modedb = at91_stn_modes,
379 .modedb_len = ARRAY_SIZE(at91_stn_modes),
380 .hfmin = 15000,
381 .hfmax = 64000,
382 .vfmin = 50,
383 .vfmax = 150,
384 };
385
386 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
387 | ATMEL_LCDC_DISTYPE_STNMONO \
388 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
389 | ATMEL_LCDC_IFWIDTH_4 \
390 | ATMEL_LCDC_SCANMOD_SINGLE)
391
at91_lcdc_stn_power_control(struct atmel_lcdfb_pdata * pdata,int on)392 static void at91_lcdc_stn_power_control(struct atmel_lcdfb_pdata *pdata, int on)
393 {
394 /* backlight */
395 if (on) { /* power up */
396 at91_set_gpio_value(AT91_PIN_PC14, 0);
397 at91_set_gpio_value(AT91_PIN_PC15, 0);
398 } else { /* power down */
399 at91_set_gpio_value(AT91_PIN_PC14, 1);
400 at91_set_gpio_value(AT91_PIN_PC15, 1);
401 }
402 }
403
404 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
405 .default_bpp = 1,
406 .default_dmacon = ATMEL_LCDC_DMAEN,
407 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
408 .default_monspecs = &at91fb_default_stn_monspecs,
409 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
410 .guard_time = 1,
411 };
412
413 #else
414
415 /* TFT */
416 static struct fb_videomode at91_tft_vga_modes[] = {
417 {
418 .name = "TX09D50VM1CCA @ 60",
419 .refresh = 60,
420 .xres = 240, .yres = 320,
421 .pixclock = KHZ2PICOS(4965),
422
423 .left_margin = 1, .right_margin = 33,
424 .upper_margin = 1, .lower_margin = 0,
425 .hsync_len = 5, .vsync_len = 1,
426
427 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
428 .vmode = FB_VMODE_NONINTERLACED,
429 },
430 };
431
432 static struct fb_monspecs at91fb_default_tft_monspecs = {
433 .manufacturer = "HIT",
434 .monitor = "TX09D50VM1CCA",
435
436 .modedb = at91_tft_vga_modes,
437 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
438 .hfmin = 15000,
439 .hfmax = 64000,
440 .vfmin = 50,
441 .vfmax = 150,
442 };
443
444 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
445 | ATMEL_LCDC_DISTYPE_TFT \
446 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
447
at91_lcdc_tft_power_control(struct atmel_lcdfb_pdata * pdata,int on)448 static void at91_lcdc_tft_power_control(struct atmel_lcdfb_pdata *pdata, int on)
449 {
450 if (on)
451 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
452 else
453 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
454 }
455
456 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
457 .lcdcon_is_backlight = true,
458 .default_bpp = 16,
459 .default_dmacon = ATMEL_LCDC_DMAEN,
460 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
461 .default_monspecs = &at91fb_default_tft_monspecs,
462 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
463 .guard_time = 1,
464 };
465 #endif
466
467 #else
468 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
469 #endif
470
471
472 /*
473 * GPIO Buttons
474 */
475 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
476 static struct gpio_keys_button ek_buttons[] = {
477 {
478 .gpio = AT91_PIN_PA27,
479 .code = BTN_0,
480 .desc = "Button 0",
481 .active_low = 1,
482 .wakeup = 1,
483 },
484 {
485 .gpio = AT91_PIN_PA26,
486 .code = BTN_1,
487 .desc = "Button 1",
488 .active_low = 1,
489 .wakeup = 1,
490 },
491 {
492 .gpio = AT91_PIN_PA25,
493 .code = BTN_2,
494 .desc = "Button 2",
495 .active_low = 1,
496 .wakeup = 1,
497 },
498 {
499 .gpio = AT91_PIN_PA24,
500 .code = BTN_3,
501 .desc = "Button 3",
502 .active_low = 1,
503 .wakeup = 1,
504 }
505 };
506
507 static struct gpio_keys_platform_data ek_button_data = {
508 .buttons = ek_buttons,
509 .nbuttons = ARRAY_SIZE(ek_buttons),
510 };
511
512 static struct platform_device ek_button_device = {
513 .name = "gpio-keys",
514 .id = -1,
515 .num_resources = 0,
516 .dev = {
517 .platform_data = &ek_button_data,
518 }
519 };
520
ek_add_device_buttons(void)521 static void __init ek_add_device_buttons(void)
522 {
523 at91_set_gpio_input(AT91_PIN_PA27, 1); /* btn0 */
524 at91_set_deglitch(AT91_PIN_PA27, 1);
525 at91_set_gpio_input(AT91_PIN_PA26, 1); /* btn1 */
526 at91_set_deglitch(AT91_PIN_PA26, 1);
527 at91_set_gpio_input(AT91_PIN_PA25, 1); /* btn2 */
528 at91_set_deglitch(AT91_PIN_PA25, 1);
529 at91_set_gpio_input(AT91_PIN_PA24, 1); /* btn3 */
530 at91_set_deglitch(AT91_PIN_PA24, 1);
531
532 platform_device_register(&ek_button_device);
533 }
534 #else
ek_add_device_buttons(void)535 static void __init ek_add_device_buttons(void) {}
536 #endif
537
538 /*
539 * LEDs
540 */
541 static struct gpio_led ek_leds[] = {
542 { /* "bottom" led, green, userled1 to be defined */
543 .name = "ds7",
544 .gpio = AT91_PIN_PA14,
545 .active_low = 1,
546 .default_trigger = "none",
547 },
548 { /* "top" led, green, userled2 to be defined */
549 .name = "ds8",
550 .gpio = AT91_PIN_PA13,
551 .active_low = 1,
552 .default_trigger = "none",
553 },
554 { /* "power" led, yellow */
555 .name = "ds1",
556 .gpio = AT91_PIN_PA23,
557 .default_trigger = "heartbeat",
558 }
559 };
560
ek_board_init(void)561 static void __init ek_board_init(void)
562 {
563 at91_register_devices();
564
565 /* Serial */
566 /* DBGU on ttyS0. (Rx & Tx only) */
567 at91_register_uart(0, 0, 0);
568 at91_add_device_serial();
569
570 if (cpu_is_at91sam9g10())
571 ek_lcdc_data.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB;
572
573 /* USB Host */
574 at91_add_device_usbh(&ek_usbh_data);
575 /* USB Device */
576 at91_add_device_udc(&ek_udc_data);
577 /* I2C */
578 at91_add_device_i2c(NULL, 0);
579 /* NAND */
580 ek_add_device_nand();
581 /* DM9000 ethernet */
582 ek_add_device_dm9000();
583
584 /* spi0 and mmc/sd share the same PIO pins */
585 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
586 /* SPI */
587 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
588 /* Touchscreen */
589 ek_add_device_ts();
590 /* SSC (to AT73C213) */
591 at73c213_set_clk(&at73c213_data);
592 at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
593 #else
594 /* MMC */
595 at91_add_device_mci(0, &mci0_data);
596 #endif
597 /* LCD Controller */
598 at91_add_device_lcdc(&ek_lcdc_data);
599 /* Push Buttons */
600 ek_add_device_buttons();
601 /* LEDs */
602 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
603 }
604
605 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
606 /* Maintainer: Atmel */
607 .init_time = at91_init_time,
608 .map_io = at91_map_io,
609 .handle_irq = at91_aic_handle_irq,
610 .init_early = ek_init_early,
611 .init_irq = at91_init_irq_default,
612 .init_machine = ek_board_init,
613 MACHINE_END
614
615 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
616 /* Maintainer: Atmel */
617 .init_time = at91_init_time,
618 .map_io = at91_map_io,
619 .handle_irq = at91_aic_handle_irq,
620 .init_early = ek_init_early,
621 .init_irq = at91_init_irq_default,
622 .init_machine = ek_board_init,
623 MACHINE_END
624