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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
57static void __init ek_init_early(void)
58{
59 /* Initialize processor: 18.432 MHz crystal */
60 at91_initialize(18432000);
61}
62
63/*
64 * DM9000 ethernet device
65 */
66#if defined(CONFIG_DM9000)
67static struct resource dm9000_resource[] = {
68 [0] = {
69 .start = AT91_CHIPSELECT_2,
70 .end = AT91_CHIPSELECT_2 + 3,
71 .flags = IORESOURCE_MEM
72 },
73 [1] = {
74 .start = AT91_CHIPSELECT_2 + 0x44,
75 .end = AT91_CHIPSELECT_2 + 0xFF,
76 .flags = IORESOURCE_MEM
77 },
78 [2] = {
79 .flags = IORESOURCE_IRQ
80 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
81 }
82};
83
84static struct dm9000_plat_data dm9000_platdata = {
85 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
86};
87
88static struct platform_device dm9000_device = {
89 .name = "dm9000",
90 .id = 0,
91 .num_resources = ARRAY_SIZE(dm9000_resource),
92 .resource = dm9000_resource,
93 .dev = {
94 .platform_data = &dm9000_platdata,
95 }
96};
97
98/*
99 * SMC timings for the DM9000.
100 * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
101 */
102static struct sam9_smc_config __initdata dm9000_smc_config = {
103 .ncs_read_setup = 0,
104 .nrd_setup = 2,
105 .ncs_write_setup = 0,
106 .nwe_setup = 2,
107
108 .ncs_read_pulse = 8,
109 .nrd_pulse = 4,
110 .ncs_write_pulse = 8,
111 .nwe_pulse = 4,
112
113 .read_cycle = 16,
114 .write_cycle = 16,
115
116 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
117 .tdf_cycles = 1,
118};
119
120static void __init ek_add_device_dm9000(void)
121{
122 struct resource *r = &dm9000_resource[2];
123
124 /* Configure chip-select 2 (DM9000) */
125 sam9_smc_configure(0, 2, &dm9000_smc_config);
126
127 /* Configure Reset signal as output */
128 at91_set_gpio_output(AT91_PIN_PC10, 0);
129
130 /* Configure Interrupt pin as input, no pull-up */
131 at91_set_gpio_input(AT91_PIN_PC11, 0);
132
133 r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
134 platform_device_register(&dm9000_device);
135}
136#else
137static void __init ek_add_device_dm9000(void) {}
138#endif /* CONFIG_DM9000 */
139
140
141/*
142 * USB Host Port
143 */
144static struct at91_usbh_data __initdata ek_usbh_data = {
145 .ports = 2,
146 .vbus_pin = {-EINVAL, -EINVAL},
147 .overcurrent_pin= {-EINVAL, -EINVAL},
148};
149
150
151/*
152 * USB Device Port
153 */
154static struct at91_udc_data __initdata ek_udc_data = {
155 .vbus_pin = AT91_PIN_PB29,
156 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
157};
158
159
160/*
161 * NAND flash
162 */
163static struct mtd_partition __initdata ek_nand_partition[] = {
164 {
165 .name = "Partition 1",
166 .offset = 0,
167 .size = SZ_256K,
168 },
169 {
170 .name = "Partition 2",
171 .offset = MTDPART_OFS_NXTBLK,
172 .size = MTDPART_SIZ_FULL,
173 },
174};
175
176static struct atmel_nand_data __initdata ek_nand_data = {
177 .ale = 22,
178 .cle = 21,
179 .det_pin = -EINVAL,
180 .rdy_pin = AT91_PIN_PC15,
181 .enable_pin = AT91_PIN_PC14,
182 .ecc_mode = NAND_ECC_SOFT,
183 .on_flash_bbt = 1,
184 .parts = ek_nand_partition,
185 .num_parts = ARRAY_SIZE(ek_nand_partition),
186};
187
188static struct sam9_smc_config __initdata ek_nand_smc_config = {
189 .ncs_read_setup = 0,
190 .nrd_setup = 1,
191 .ncs_write_setup = 0,
192 .nwe_setup = 1,
193
194 .ncs_read_pulse = 3,
195 .nrd_pulse = 3,
196 .ncs_write_pulse = 3,
197 .nwe_pulse = 3,
198
199 .read_cycle = 5,
200 .write_cycle = 5,
201
202 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
203 .tdf_cycles = 2,
204};
205
206static void __init ek_add_device_nand(void)
207{
208 ek_nand_data.bus_width_16 = board_have_nand_16bit();
209 /* setup bus-width (8 or 16) */
210 if (ek_nand_data.bus_width_16)
211 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
212 else
213 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
214
215 /* configure chip-select 3 (NAND) */
216 sam9_smc_configure(0, 3, &ek_nand_smc_config);
217
218 at91_add_device_nand(&ek_nand_data);
219}
220
221/*
222 * SPI related devices
223 */
224#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
225
226/*
227 * ADS7846 Touchscreen
228 */
229#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
230
231static int ads7843_pendown_state(void)
232{
233 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
234}
235
236static struct ads7846_platform_data ads_info = {
237 .model = 7843,
238 .x_min = 150,
239 .x_max = 3830,
240 .y_min = 190,
241 .y_max = 3830,
242 .vref_delay_usecs = 100,
243 .x_plate_ohms = 450,
244 .y_plate_ohms = 250,
245 .pressure_max = 15000,
246 .debounce_max = 1,
247 .debounce_rep = 0,
248 .debounce_tol = (~0),
249 .get_pendown_state = ads7843_pendown_state,
250};
251
252static void __init ek_add_device_ts(void)
253{
254 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
255 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
256}
257#else
258static void __init ek_add_device_ts(void) {}
259#endif
260
261/*
262 * Audio
263 */
264static struct at73c213_board_info at73c213_data = {
265 .ssc_id = 1,
266#if defined(CONFIG_MACH_AT91SAM9261EK)
267 .shortname = "AT91SAM9261-EK external DAC",
268#else
269 .shortname = "AT91SAM9G10-EK external DAC",
270#endif
271};
272
273#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
274static void __init at73c213_set_clk(struct at73c213_board_info *info)
275{
276 struct clk *pck2;
277 struct clk *plla;
278
279 pck2 = clk_get(NULL, "pck2");
280 plla = clk_get(NULL, "plla");
281
282 /* AT73C213 MCK Clock */
283 at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
284
285 clk_set_parent(pck2, plla);
286 clk_put(plla);
287
288 info->dac_clk = pck2;
289}
290#else
291static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
292#endif
293
294/*
295 * SPI devices
296 */
297static struct spi_board_info ek_spi_devices[] = {
298 { /* DataFlash chip */
299 .modalias = "mtd_dataflash",
300 .chip_select = 0,
301 .max_speed_hz = 15 * 1000 * 1000,
302 .bus_num = 0,
303 },
304#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
305 {
306 .modalias = "ads7846",
307 .chip_select = 2,
308 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
309 .bus_num = 0,
310 .platform_data = &ads_info,
311 .irq = AT91SAM9261_ID_IRQ0,
312 .controller_data = (void *) AT91_PIN_PA28, /* CS pin */
313 },
314#endif
315#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
316 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
317 .modalias = "mtd_dataflash",
318 .chip_select = 3,
319 .max_speed_hz = 15 * 1000 * 1000,
320 .bus_num = 0,
321 },
322#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
323 { /* AT73C213 DAC */
324 .modalias = "at73c213",
325 .chip_select = 3,
326 .max_speed_hz = 10 * 1000 * 1000,
327 .bus_num = 0,
328 .mode = SPI_MODE_1,
329 .platform_data = &at73c213_data,
330 .controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
331 },
332#endif
333};
334
335#else /* CONFIG_SPI_ATMEL_* */
336/* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
337
338/*
339 * MCI (SD/MMC)
340 * det_pin, wp_pin and vcc_pin are not connected
341 */
342static struct at91_mmc_data __initdata ek_mmc_data = {
343 .wire4 = 1,
344 .det_pin = -EINVAL,
345 .wp_pin = -EINVAL,
346 .vcc_pin = -EINVAL,
347};
348
349#endif /* CONFIG_SPI_ATMEL_* */
350
351
352/*
353 * LCD Controller
354 */
355#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
356
357#if defined(CONFIG_FB_ATMEL_STN)
358
359/* STN */
360static struct fb_videomode at91_stn_modes[] = {
361 {
362 .name = "SP06Q002 @ 75",
363 .refresh = 75,
364 .xres = 320, .yres = 240,
365 .pixclock = KHZ2PICOS(1440),
366
367 .left_margin = 1, .right_margin = 1,
368 .upper_margin = 0, .lower_margin = 0,
369 .hsync_len = 1, .vsync_len = 1,
370
371 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
372 .vmode = FB_VMODE_NONINTERLACED,
373 },
374};
375
376static struct fb_monspecs at91fb_default_stn_monspecs = {
377 .manufacturer = "HIT",
378 .monitor = "SP06Q002",
379
380 .modedb = at91_stn_modes,
381 .modedb_len = ARRAY_SIZE(at91_stn_modes),
382 .hfmin = 15000,
383 .hfmax = 64000,
384 .vfmin = 50,
385 .vfmax = 150,
386};
387
388#define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
389 | ATMEL_LCDC_DISTYPE_STNMONO \
390 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
391 | ATMEL_LCDC_IFWIDTH_4 \
392 | ATMEL_LCDC_SCANMOD_SINGLE)
393
394static void at91_lcdc_stn_power_control(int on)
395{
396 /* backlight */
397 if (on) { /* power up */
398 at91_set_gpio_value(AT91_PIN_PC14, 0);
399 at91_set_gpio_value(AT91_PIN_PC15, 0);
400 } else { /* power down */
401 at91_set_gpio_value(AT91_PIN_PC14, 1);
402 at91_set_gpio_value(AT91_PIN_PC15, 1);
403 }
404}
405
406static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
407 .default_bpp = 1,
408 .default_dmacon = ATMEL_LCDC_DMAEN,
409 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
410 .default_monspecs = &at91fb_default_stn_monspecs,
411 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
412 .guard_time = 1,
413#if defined(CONFIG_MACH_AT91SAM9G10EK)
414 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
415#endif
416};
417
418#else
419
420/* TFT */
421static struct fb_videomode at91_tft_vga_modes[] = {
422 {
423 .name = "TX09D50VM1CCA @ 60",
424 .refresh = 60,
425 .xres = 240, .yres = 320,
426 .pixclock = KHZ2PICOS(4965),
427
428 .left_margin = 1, .right_margin = 33,
429 .upper_margin = 1, .lower_margin = 0,
430 .hsync_len = 5, .vsync_len = 1,
431
432 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
433 .vmode = FB_VMODE_NONINTERLACED,
434 },
435};
436
437static struct fb_monspecs at91fb_default_tft_monspecs = {
438 .manufacturer = "HIT",
439 .monitor = "TX09D50VM1CCA",
440
441 .modedb = at91_tft_vga_modes,
442 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
443 .hfmin = 15000,
444 .hfmax = 64000,
445 .vfmin = 50,
446 .vfmax = 150,
447};
448
449#define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
450 | ATMEL_LCDC_DISTYPE_TFT \
451 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
452
453static void at91_lcdc_tft_power_control(int on)
454{
455 if (on)
456 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
457 else
458 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
459}
460
461static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
462 .lcdcon_is_backlight = true,
463 .default_bpp = 16,
464 .default_dmacon = ATMEL_LCDC_DMAEN,
465 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
466 .default_monspecs = &at91fb_default_tft_monspecs,
467 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
468 .guard_time = 1,
469#if defined(CONFIG_MACH_AT91SAM9G10EK)
470 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
471#endif
472};
473#endif
474
475#else
476static struct atmel_lcdfb_info __initdata ek_lcdc_data;
477#endif
478
479
480/*
481 * GPIO Buttons
482 */
483#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
484static struct gpio_keys_button ek_buttons[] = {
485 {
486 .gpio = AT91_PIN_PA27,
487 .code = BTN_0,
488 .desc = "Button 0",
489 .active_low = 1,
490 .wakeup = 1,
491 },
492 {
493 .gpio = AT91_PIN_PA26,
494 .code = BTN_1,
495 .desc = "Button 1",
496 .active_low = 1,
497 .wakeup = 1,
498 },
499 {
500 .gpio = AT91_PIN_PA25,
501 .code = BTN_2,
502 .desc = "Button 2",
503 .active_low = 1,
504 .wakeup = 1,
505 },
506 {
507 .gpio = AT91_PIN_PA24,
508 .code = BTN_3,
509 .desc = "Button 3",
510 .active_low = 1,
511 .wakeup = 1,
512 }
513};
514
515static struct gpio_keys_platform_data ek_button_data = {
516 .buttons = ek_buttons,
517 .nbuttons = ARRAY_SIZE(ek_buttons),
518};
519
520static struct platform_device ek_button_device = {
521 .name = "gpio-keys",
522 .id = -1,
523 .num_resources = 0,
524 .dev = {
525 .platform_data = &ek_button_data,
526 }
527};
528
529static void __init ek_add_device_buttons(void)
530{
531 at91_set_gpio_input(AT91_PIN_PA27, 1); /* btn0 */
532 at91_set_deglitch(AT91_PIN_PA27, 1);
533 at91_set_gpio_input(AT91_PIN_PA26, 1); /* btn1 */
534 at91_set_deglitch(AT91_PIN_PA26, 1);
535 at91_set_gpio_input(AT91_PIN_PA25, 1); /* btn2 */
536 at91_set_deglitch(AT91_PIN_PA25, 1);
537 at91_set_gpio_input(AT91_PIN_PA24, 1); /* btn3 */
538 at91_set_deglitch(AT91_PIN_PA24, 1);
539
540 platform_device_register(&ek_button_device);
541}
542#else
543static void __init ek_add_device_buttons(void) {}
544#endif
545
546/*
547 * LEDs
548 */
549static struct gpio_led ek_leds[] = {
550 { /* "bottom" led, green, userled1 to be defined */
551 .name = "ds7",
552 .gpio = AT91_PIN_PA14,
553 .active_low = 1,
554 .default_trigger = "none",
555 },
556 { /* "top" led, green, userled2 to be defined */
557 .name = "ds8",
558 .gpio = AT91_PIN_PA13,
559 .active_low = 1,
560 .default_trigger = "none",
561 },
562 { /* "power" led, yellow */
563 .name = "ds1",
564 .gpio = AT91_PIN_PA23,
565 .default_trigger = "heartbeat",
566 }
567};
568
569static void __init ek_board_init(void)
570{
571 /* Setup the LEDs */
572 at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
573
574 /* Serial */
575 /* DBGU on ttyS0. (Rx & Tx only) */
576 at91_register_uart(0, 0, 0);
577 at91_add_device_serial();
578 /* USB Host */
579 at91_add_device_usbh(&ek_usbh_data);
580 /* USB Device */
581 at91_add_device_udc(&ek_udc_data);
582 /* I2C */
583 at91_add_device_i2c(NULL, 0);
584 /* NAND */
585 ek_add_device_nand();
586 /* DM9000 ethernet */
587 ek_add_device_dm9000();
588
589 /* spi0 and mmc/sd share the same PIO pins */
590#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
591 /* SPI */
592 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
593 /* Touchscreen */
594 ek_add_device_ts();
595 /* SSC (to AT73C213) */
596 at73c213_set_clk(&at73c213_data);
597 at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
598#else
599 /* MMC */
600 at91_add_device_mmc(0, &ek_mmc_data);
601#endif
602 /* LCD Controller */
603 at91_add_device_lcdc(&ek_lcdc_data);
604 /* Push Buttons */
605 ek_add_device_buttons();
606 /* LEDs */
607 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
608}
609
610#if defined(CONFIG_MACH_AT91SAM9261EK)
611MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
612#else
613MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
614#endif
615 /* Maintainer: Atmel */
616 .timer = &at91sam926x_timer,
617 .map_io = at91_map_io,
618 .init_early = ek_init_early,
619 .init_irq = at91_init_irq_default,
620 .init_machine = ek_board_init,
621MACHINE_END