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022cbd73 1/*
d0760b3b 2 * linux/arch/arm/mach-at91/board-sam9261ek.c
022cbd73
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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>
23522728 28#include <linux/spi/ads7846.h>
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29#include <linux/spi/at73c213.h>
30#include <linux/clk.h>
022cbd73 31#include <linux/dm9000.h>
cdf95c73 32#include <linux/fb.h>
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33#include <linux/gpio_keys.h>
34#include <linux/input.h>
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35
36#include <video/atmel_lcdc.h>
022cbd73 37
a09e64fb 38#include <mach/hardware.h>
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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
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47#include <mach/board.h>
48#include <mach/gpio.h>
49#include <mach/at91sam9_smc.h>
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50
51#include "generic.h"
52
53
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54static void __init ek_map_io(void)
55{
56 /* Initialize processor: 18.432 MHz crystal */
57 at91sam9261_initialize(18432000);
58
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59 /* Setup the LEDs */
60 at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
61
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62 /* DGBU on ttyS0. (Rx & Tx only) */
63 at91_register_uart(0, 0, 0);
64
65 /* set serial console to ttyS0 (ie, DBGU) */
66 at91_set_serial_console(0);
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67}
68
69static void __init ek_init_irq(void)
70{
71 at91sam9261_init_interrupts(NULL);
72}
73
74
75/*
76 * DM9000 ethernet device
77 */
78#if defined(CONFIG_DM9000)
79static struct resource at91sam9261_dm9000_resource[] = {
80 [0] = {
81 .start = AT91_CHIPSELECT_2,
82 .end = AT91_CHIPSELECT_2 + 3,
83 .flags = IORESOURCE_MEM
84 },
85 [1] = {
86 .start = AT91_CHIPSELECT_2 + 0x44,
87 .end = AT91_CHIPSELECT_2 + 0xFF,
88 .flags = IORESOURCE_MEM
89 },
90 [2] = {
91 .start = AT91_PIN_PC11,
92 .end = AT91_PIN_PC11,
93 .flags = IORESOURCE_IRQ
94 }
95};
96
97static struct dm9000_plat_data dm9000_platdata = {
98 .flags = DM9000_PLATF_16BITONLY,
99};
100
101static struct platform_device at91sam9261_dm9000_device = {
102 .name = "dm9000",
103 .id = 0,
104 .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
105 .resource = at91sam9261_dm9000_resource,
106 .dev = {
107 .platform_data = &dm9000_platdata,
108 }
109};
110
111static void __init ek_add_device_dm9000(void)
112{
113 /*
114 * Configure Chip-Select 2 on SMC for the DM9000.
115 * Note: These timings were calculated for MASTER_CLOCK = 100000000
116 * according to the DM9000 timings.
117 */
118 at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
119 at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
120 at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
121 at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
122
123 /* Configure Reset signal as output */
124 at91_set_gpio_output(AT91_PIN_PC10, 0);
125
126 /* Configure Interrupt pin as input, no pull-up */
127 at91_set_gpio_input(AT91_PIN_PC11, 0);
128
129 platform_device_register(&at91sam9261_dm9000_device);
130}
131#else
132static void __init ek_add_device_dm9000(void) {}
133#endif /* CONFIG_DM9000 */
134
135
136/*
137 * USB Host Port
138 */
139static struct at91_usbh_data __initdata ek_usbh_data = {
140 .ports = 2,
141};
142
143
144/*
145 * USB Device Port
146 */
147static struct at91_udc_data __initdata ek_udc_data = {
148 .vbus_pin = AT91_PIN_PB29,
149 .pullup_pin = 0, /* pull-up driven by UDC */
150};
151
152
153/*
154 * MCI (SD/MMC)
155 */
156static struct at91_mmc_data __initdata ek_mmc_data = {
157 .wire4 = 1,
158// .det_pin = ... not connected
159// .wp_pin = ... not connected
160// .vcc_pin = ... not connected
161};
162
163
164/*
165 * NAND flash
166 */
167static struct mtd_partition __initdata ek_nand_partition[] = {
168 {
169 .name = "Partition 1",
170 .offset = 0,
171 .size = 256 * 1024,
172 },
173 {
174 .name = "Partition 2",
175 .offset = 256 * 1024 ,
176 .size = MTDPART_SIZ_FULL,
177 },
178};
179
cdea4606 180static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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181{
182 *num_partitions = ARRAY_SIZE(ek_nand_partition);
183 return ek_nand_partition;
184}
185
3c3796cc 186static struct atmel_nand_data __initdata ek_nand_data = {
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187 .ale = 22,
188 .cle = 21,
189// .det_pin = ... not connected
190 .rdy_pin = AT91_PIN_PC15,
191 .enable_pin = AT91_PIN_PC14,
192 .partition_info = nand_partitions,
f6ed6f78 193#if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
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194 .bus_width_16 = 1,
195#else
196 .bus_width_16 = 0,
197#endif
198};
199
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200/*
201 * ADS7846 Touchscreen
202 */
203#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
204
205static int ads7843_pendown_state(void)
206{
207 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
208}
209
210static struct ads7846_platform_data ads_info = {
211 .model = 7843,
212 .x_min = 150,
213 .x_max = 3830,
214 .y_min = 190,
215 .y_max = 3830,
216 .vref_delay_usecs = 100,
217 .x_plate_ohms = 450,
218 .y_plate_ohms = 250,
219 .pressure_max = 15000,
220 .debounce_max = 1,
221 .debounce_rep = 0,
222 .debounce_tol = (~0),
223 .get_pendown_state = ads7843_pendown_state,
224};
225
226static void __init ek_add_device_ts(void)
227{
228 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
229 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
230}
231#else
232static void __init ek_add_device_ts(void) {}
233#endif
234
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235/*
236 * Audio
237 */
238static struct at73c213_board_info at73c213_data = {
239 .ssc_id = 1,
240 .shortname = "AT91SAM9261-EK external DAC",
241};
242
243#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
244static void __init at73c213_set_clk(struct at73c213_board_info *info)
245{
246 struct clk *pck2;
247 struct clk *plla;
248
249 pck2 = clk_get(NULL, "pck2");
250 plla = clk_get(NULL, "plla");
251
252 /* AT73C213 MCK Clock */
253 at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
254
255 clk_set_parent(pck2, plla);
256 clk_put(plla);
257
258 info->dac_clk = pck2;
259}
260#else
261static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
262#endif
263
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264/*
265 * SPI devices
266 */
267static struct spi_board_info ek_spi_devices[] = {
268 { /* DataFlash chip */
269 .modalias = "mtd_dataflash",
270 .chip_select = 0,
271 .max_speed_hz = 15 * 1000 * 1000,
272 .bus_num = 0,
273 },
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274#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
275 {
276 .modalias = "ads7846",
277 .chip_select = 2,
278 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
279 .bus_num = 0,
280 .platform_data = &ads_info,
281 .irq = AT91SAM9261_ID_IRQ0,
5e9df924 282 .controller_data = (void *) AT91_PIN_PA28, /* CS pin */
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283 },
284#endif
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285#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
286 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
287 .modalias = "mtd_dataflash",
288 .chip_select = 3,
289 .max_speed_hz = 15 * 1000 * 1000,
290 .bus_num = 0,
291 },
23522728 292#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
022cbd73 293 { /* AT73C213 DAC */
23522728 294 .modalias = "at73c213",
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295 .chip_select = 3,
296 .max_speed_hz = 10 * 1000 * 1000,
297 .bus_num = 0,
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298 .mode = SPI_MODE_1,
299 .platform_data = &at73c213_data,
300 .controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
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301 },
302#endif
303};
304
305
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306/*
307 * LCD Controller
308 */
309#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
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310
311#if defined(CONFIG_FB_ATMEL_STN)
312
313/* STN */
314static struct fb_videomode at91_stn_modes[] = {
315 {
316 .name = "SP06Q002 @ 75",
317 .refresh = 75,
318 .xres = 320, .yres = 240,
319 .pixclock = KHZ2PICOS(1440),
320
321 .left_margin = 1, .right_margin = 1,
322 .upper_margin = 0, .lower_margin = 0,
323 .hsync_len = 1, .vsync_len = 1,
324
325 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
326 .vmode = FB_VMODE_NONINTERLACED,
327 },
328};
329
330static struct fb_monspecs at91fb_default_stn_monspecs = {
331 .manufacturer = "HIT",
332 .monitor = "SP06Q002",
333
334 .modedb = at91_stn_modes,
335 .modedb_len = ARRAY_SIZE(at91_stn_modes),
336 .hfmin = 15000,
337 .hfmax = 64000,
338 .vfmin = 50,
339 .vfmax = 150,
340};
341
342#define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
343 | ATMEL_LCDC_DISTYPE_STNMONO \
344 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
345 | ATMEL_LCDC_IFWIDTH_4 \
346 | ATMEL_LCDC_SCANMOD_SINGLE)
347
348static void at91_lcdc_stn_power_control(int on)
349{
350 /* backlight */
351 if (on) { /* power up */
352 at91_set_gpio_value(AT91_PIN_PC14, 0);
353 at91_set_gpio_value(AT91_PIN_PC15, 0);
354 } else { /* power down */
355 at91_set_gpio_value(AT91_PIN_PC14, 1);
356 at91_set_gpio_value(AT91_PIN_PC15, 1);
357 }
358}
359
360static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
361 .default_bpp = 1,
362 .default_dmacon = ATMEL_LCDC_DMAEN,
363 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
364 .default_monspecs = &at91fb_default_stn_monspecs,
365 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
366 .guard_time = 1,
367};
368
369#else
370
371/* TFT */
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372static struct fb_videomode at91_tft_vga_modes[] = {
373 {
374 .name = "TX09D50VM1CCA @ 60",
375 .refresh = 60,
376 .xres = 240, .yres = 320,
377 .pixclock = KHZ2PICOS(4965),
378
379 .left_margin = 1, .right_margin = 33,
380 .upper_margin = 1, .lower_margin = 0,
381 .hsync_len = 5, .vsync_len = 1,
382
383 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
384 .vmode = FB_VMODE_NONINTERLACED,
385 },
386};
387
51708748 388static struct fb_monspecs at91fb_default_tft_monspecs = {
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389 .manufacturer = "HIT",
390 .monitor = "TX09D50VM1CCA",
391
392 .modedb = at91_tft_vga_modes,
393 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
394 .hfmin = 15000,
395 .hfmax = 64000,
396 .vfmin = 50,
397 .vfmax = 150,
398};
399
51708748 400#define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
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401 | ATMEL_LCDC_DISTYPE_TFT \
402 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
403
51708748 404static void at91_lcdc_tft_power_control(int on)
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405{
406 if (on)
407 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
408 else
409 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
410}
411
cdf95c73 412static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
a9a84c37 413 .lcdcon_is_backlight = true,
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414 .default_bpp = 16,
415 .default_dmacon = ATMEL_LCDC_DMAEN,
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416 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
417 .default_monspecs = &at91fb_default_tft_monspecs,
418 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
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419 .guard_time = 1,
420};
51708748 421#endif
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422
423#else
424static struct atmel_lcdfb_info __initdata ek_lcdc_data;
425#endif
426
427
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428/*
429 * GPIO Buttons
430 */
431#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
432static struct gpio_keys_button ek_buttons[] = {
433 {
434 .gpio = AT91_PIN_PA27,
eaf858a9 435 .code = BTN_0,
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436 .desc = "Button 0",
437 .active_low = 1,
438 },
439 {
440 .gpio = AT91_PIN_PA26,
eaf858a9 441 .code = BTN_1,
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442 .desc = "Button 1",
443 .active_low = 1,
444 },
445 {
446 .gpio = AT91_PIN_PA25,
eaf858a9 447 .code = BTN_2,
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448 .desc = "Button 2",
449 .active_low = 1,
450 },
451 {
452 .gpio = AT91_PIN_PA24,
eaf858a9 453 .code = BTN_3,
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454 .desc = "Button 3",
455 .active_low = 1,
456 }
457};
458
459static struct gpio_keys_platform_data ek_button_data = {
460 .buttons = ek_buttons,
461 .nbuttons = ARRAY_SIZE(ek_buttons),
462};
463
464static struct platform_device ek_button_device = {
465 .name = "gpio-keys",
466 .id = -1,
467 .num_resources = 0,
468 .dev = {
469 .platform_data = &ek_button_data,
470 }
471};
472
473static void __init ek_add_device_buttons(void)
474{
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475 at91_set_gpio_input(AT91_PIN_PA27, 0); /* btn0 */
476 at91_set_deglitch(AT91_PIN_PA27, 1);
477 at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */
478 at91_set_deglitch(AT91_PIN_PA26, 1);
479 at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */
480 at91_set_deglitch(AT91_PIN_PA25, 1);
481 at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */
482 at91_set_deglitch(AT91_PIN_PA24, 1);
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483
484 platform_device_register(&ek_button_device);
485}
486#else
487static void __init ek_add_device_buttons(void) {}
488#endif
489
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490/*
491 * LEDs
492 */
493static struct gpio_led ek_leds[] = {
494 { /* "bottom" led, green, userled1 to be defined */
495 .name = "ds7",
496 .gpio = AT91_PIN_PA14,
497 .active_low = 1,
498 .default_trigger = "none",
499 },
500 { /* "top" led, green, userled2 to be defined */
501 .name = "ds8",
502 .gpio = AT91_PIN_PA13,
503 .active_low = 1,
504 .default_trigger = "none",
505 },
506 { /* "power" led, yellow */
507 .name = "ds1",
508 .gpio = AT91_PIN_PA23,
509 .default_trigger = "heartbeat",
510 }
511};
512
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513static void __init ek_board_init(void)
514{
515 /* Serial */
516 at91_add_device_serial();
517 /* USB Host */
518 at91_add_device_usbh(&ek_usbh_data);
519 /* USB Device */
520 at91_add_device_udc(&ek_udc_data);
521 /* I2C */
f230d3f5 522 at91_add_device_i2c(NULL, 0);
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523 /* NAND */
524 at91_add_device_nand(&ek_nand_data);
525 /* DM9000 ethernet */
526 ek_add_device_dm9000();
527
528 /* spi0 and mmc/sd share the same PIO pins */
529#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
530 /* SPI */
531 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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532 /* Touchscreen */
533 ek_add_device_ts();
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534 /* SSC (to AT73C213) */
535 at73c213_set_clk(&at73c213_data);
536 at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
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537#else
538 /* MMC */
d0760b3b 539 at91_add_device_mmc(0, &ek_mmc_data);
022cbd73 540#endif
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541 /* LCD Controller */
542 at91_add_device_lcdc(&ek_lcdc_data);
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543 /* Push Buttons */
544 ek_add_device_buttons();
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545 /* LEDs */
546 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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547}
548
549MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
550 /* Maintainer: Atmel */
551 .phys_io = AT91_BASE_SYS,
552 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
553 .boot_params = AT91_SDRAM_BASE + 0x100,
554 .timer = &at91sam926x_timer,
555 .map_io = ek_map_io,
556 .init_irq = ek_init_irq,
557 .init_machine = ek_board_init,
558MACHINE_END