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022cbd73 1/*
d0760b3b 2 * linux/arch/arm/mach-at91/board-sam9261ek.c
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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>
022cbd73 29#include <linux/dm9000.h>
cdf95c73 30#include <linux/fb.h>
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31#include <linux/gpio_keys.h>
32#include <linux/input.h>
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33
34#include <video/atmel_lcdc.h>
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35
36#include <asm/hardware.h>
37#include <asm/setup.h>
38#include <asm/mach-types.h>
39#include <asm/irq.h>
40
41#include <asm/mach/arch.h>
42#include <asm/mach/map.h>
43#include <asm/mach/irq.h>
44
45#include <asm/arch/board.h>
46#include <asm/arch/gpio.h>
b78eabde 47#include <asm/arch/at91sam9_smc.h>
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48
49#include "generic.h"
50
51
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52static void __init ek_map_io(void)
53{
54 /* Initialize processor: 18.432 MHz crystal */
55 at91sam9261_initialize(18432000);
56
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57 /* Setup the LEDs */
58 at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
59
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60 /* DGBU on ttyS0. (Rx & Tx only) */
61 at91_register_uart(0, 0, 0);
62
63 /* set serial console to ttyS0 (ie, DBGU) */
64 at91_set_serial_console(0);
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65}
66
67static void __init ek_init_irq(void)
68{
69 at91sam9261_init_interrupts(NULL);
70}
71
72
73/*
74 * DM9000 ethernet device
75 */
76#if defined(CONFIG_DM9000)
77static struct resource at91sam9261_dm9000_resource[] = {
78 [0] = {
79 .start = AT91_CHIPSELECT_2,
80 .end = AT91_CHIPSELECT_2 + 3,
81 .flags = IORESOURCE_MEM
82 },
83 [1] = {
84 .start = AT91_CHIPSELECT_2 + 0x44,
85 .end = AT91_CHIPSELECT_2 + 0xFF,
86 .flags = IORESOURCE_MEM
87 },
88 [2] = {
89 .start = AT91_PIN_PC11,
90 .end = AT91_PIN_PC11,
91 .flags = IORESOURCE_IRQ
92 }
93};
94
95static struct dm9000_plat_data dm9000_platdata = {
96 .flags = DM9000_PLATF_16BITONLY,
97};
98
99static struct platform_device at91sam9261_dm9000_device = {
100 .name = "dm9000",
101 .id = 0,
102 .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
103 .resource = at91sam9261_dm9000_resource,
104 .dev = {
105 .platform_data = &dm9000_platdata,
106 }
107};
108
109static void __init ek_add_device_dm9000(void)
110{
111 /*
112 * Configure Chip-Select 2 on SMC for the DM9000.
113 * Note: These timings were calculated for MASTER_CLOCK = 100000000
114 * according to the DM9000 timings.
115 */
116 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));
117 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));
118 at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
119 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));
120
121 /* Configure Reset signal as output */
122 at91_set_gpio_output(AT91_PIN_PC10, 0);
123
124 /* Configure Interrupt pin as input, no pull-up */
125 at91_set_gpio_input(AT91_PIN_PC11, 0);
126
127 platform_device_register(&at91sam9261_dm9000_device);
128}
129#else
130static void __init ek_add_device_dm9000(void) {}
131#endif /* CONFIG_DM9000 */
132
133
134/*
135 * USB Host Port
136 */
137static struct at91_usbh_data __initdata ek_usbh_data = {
138 .ports = 2,
139};
140
141
142/*
143 * USB Device Port
144 */
145static struct at91_udc_data __initdata ek_udc_data = {
146 .vbus_pin = AT91_PIN_PB29,
147 .pullup_pin = 0, /* pull-up driven by UDC */
148};
149
150
151/*
152 * MCI (SD/MMC)
153 */
154static struct at91_mmc_data __initdata ek_mmc_data = {
155 .wire4 = 1,
156// .det_pin = ... not connected
157// .wp_pin = ... not connected
158// .vcc_pin = ... not connected
159};
160
161
162/*
163 * NAND flash
164 */
165static struct mtd_partition __initdata ek_nand_partition[] = {
166 {
167 .name = "Partition 1",
168 .offset = 0,
169 .size = 256 * 1024,
170 },
171 {
172 .name = "Partition 2",
173 .offset = 256 * 1024 ,
174 .size = MTDPART_SIZ_FULL,
175 },
176};
177
cdea4606 178static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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179{
180 *num_partitions = ARRAY_SIZE(ek_nand_partition);
181 return ek_nand_partition;
182}
183
184static struct at91_nand_data __initdata ek_nand_data = {
185 .ale = 22,
186 .cle = 21,
187// .det_pin = ... not connected
188 .rdy_pin = AT91_PIN_PC15,
189 .enable_pin = AT91_PIN_PC14,
190 .partition_info = nand_partitions,
191#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
192 .bus_width_16 = 1,
193#else
194 .bus_width_16 = 0,
195#endif
196};
197
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198/*
199 * ADS7846 Touchscreen
200 */
201#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
202
203static int ads7843_pendown_state(void)
204{
205 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
206}
207
208static struct ads7846_platform_data ads_info = {
209 .model = 7843,
210 .x_min = 150,
211 .x_max = 3830,
212 .y_min = 190,
213 .y_max = 3830,
214 .vref_delay_usecs = 100,
215 .x_plate_ohms = 450,
216 .y_plate_ohms = 250,
217 .pressure_max = 15000,
218 .debounce_max = 1,
219 .debounce_rep = 0,
220 .debounce_tol = (~0),
221 .get_pendown_state = ads7843_pendown_state,
222};
223
224static void __init ek_add_device_ts(void)
225{
226 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
227 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
228}
229#else
230static void __init ek_add_device_ts(void) {}
231#endif
232
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233/*
234 * SPI devices
235 */
236static struct spi_board_info ek_spi_devices[] = {
237 { /* DataFlash chip */
238 .modalias = "mtd_dataflash",
239 .chip_select = 0,
240 .max_speed_hz = 15 * 1000 * 1000,
241 .bus_num = 0,
242 },
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243#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
244 {
245 .modalias = "ads7846",
246 .chip_select = 2,
247 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
248 .bus_num = 0,
249 .platform_data = &ads_info,
250 .irq = AT91SAM9261_ID_IRQ0,
251 },
252#endif
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253#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
254 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
255 .modalias = "mtd_dataflash",
256 .chip_select = 3,
257 .max_speed_hz = 15 * 1000 * 1000,
258 .bus_num = 0,
259 },
23522728 260#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
022cbd73 261 { /* AT73C213 DAC */
23522728 262 .modalias = "at73c213",
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263 .chip_select = 3,
264 .max_speed_hz = 10 * 1000 * 1000,
265 .bus_num = 0,
266 },
267#endif
268};
269
270
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271/*
272 * LCD Controller
273 */
274#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
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275
276#if defined(CONFIG_FB_ATMEL_STN)
277
278/* STN */
279static struct fb_videomode at91_stn_modes[] = {
280 {
281 .name = "SP06Q002 @ 75",
282 .refresh = 75,
283 .xres = 320, .yres = 240,
284 .pixclock = KHZ2PICOS(1440),
285
286 .left_margin = 1, .right_margin = 1,
287 .upper_margin = 0, .lower_margin = 0,
288 .hsync_len = 1, .vsync_len = 1,
289
290 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
291 .vmode = FB_VMODE_NONINTERLACED,
292 },
293};
294
295static struct fb_monspecs at91fb_default_stn_monspecs = {
296 .manufacturer = "HIT",
297 .monitor = "SP06Q002",
298
299 .modedb = at91_stn_modes,
300 .modedb_len = ARRAY_SIZE(at91_stn_modes),
301 .hfmin = 15000,
302 .hfmax = 64000,
303 .vfmin = 50,
304 .vfmax = 150,
305};
306
307#define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
308 | ATMEL_LCDC_DISTYPE_STNMONO \
309 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
310 | ATMEL_LCDC_IFWIDTH_4 \
311 | ATMEL_LCDC_SCANMOD_SINGLE)
312
313static void at91_lcdc_stn_power_control(int on)
314{
315 /* backlight */
316 if (on) { /* power up */
317 at91_set_gpio_value(AT91_PIN_PC14, 0);
318 at91_set_gpio_value(AT91_PIN_PC15, 0);
319 } else { /* power down */
320 at91_set_gpio_value(AT91_PIN_PC14, 1);
321 at91_set_gpio_value(AT91_PIN_PC15, 1);
322 }
323}
324
325static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
326 .default_bpp = 1,
327 .default_dmacon = ATMEL_LCDC_DMAEN,
328 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
329 .default_monspecs = &at91fb_default_stn_monspecs,
330 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
331 .guard_time = 1,
332};
333
334#else
335
336/* TFT */
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337static struct fb_videomode at91_tft_vga_modes[] = {
338 {
339 .name = "TX09D50VM1CCA @ 60",
340 .refresh = 60,
341 .xres = 240, .yres = 320,
342 .pixclock = KHZ2PICOS(4965),
343
344 .left_margin = 1, .right_margin = 33,
345 .upper_margin = 1, .lower_margin = 0,
346 .hsync_len = 5, .vsync_len = 1,
347
348 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
349 .vmode = FB_VMODE_NONINTERLACED,
350 },
351};
352
51708748 353static struct fb_monspecs at91fb_default_tft_monspecs = {
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354 .manufacturer = "HIT",
355 .monitor = "TX09D50VM1CCA",
356
357 .modedb = at91_tft_vga_modes,
358 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
359 .hfmin = 15000,
360 .hfmax = 64000,
361 .vfmin = 50,
362 .vfmax = 150,
363};
364
51708748 365#define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
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366 | ATMEL_LCDC_DISTYPE_TFT \
367 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
368
51708748 369static void at91_lcdc_tft_power_control(int on)
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370{
371 if (on)
372 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
373 else
374 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
375}
376
cdf95c73 377static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
a9a84c37 378 .lcdcon_is_backlight = true,
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379 .default_bpp = 16,
380 .default_dmacon = ATMEL_LCDC_DMAEN,
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381 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
382 .default_monspecs = &at91fb_default_tft_monspecs,
383 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
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384 .guard_time = 1,
385};
51708748 386#endif
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387
388#else
389static struct atmel_lcdfb_info __initdata ek_lcdc_data;
390#endif
391
392
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393/*
394 * GPIO Buttons
395 */
396#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
397static struct gpio_keys_button ek_buttons[] = {
398 {
399 .gpio = AT91_PIN_PA27,
eaf858a9 400 .code = BTN_0,
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401 .desc = "Button 0",
402 .active_low = 1,
403 },
404 {
405 .gpio = AT91_PIN_PA26,
eaf858a9 406 .code = BTN_1,
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407 .desc = "Button 1",
408 .active_low = 1,
409 },
410 {
411 .gpio = AT91_PIN_PA25,
eaf858a9 412 .code = BTN_2,
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413 .desc = "Button 2",
414 .active_low = 1,
415 },
416 {
417 .gpio = AT91_PIN_PA24,
eaf858a9 418 .code = BTN_3,
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419 .desc = "Button 3",
420 .active_low = 1,
421 }
422};
423
424static struct gpio_keys_platform_data ek_button_data = {
425 .buttons = ek_buttons,
426 .nbuttons = ARRAY_SIZE(ek_buttons),
427};
428
429static struct platform_device ek_button_device = {
430 .name = "gpio-keys",
431 .id = -1,
432 .num_resources = 0,
433 .dev = {
434 .platform_data = &ek_button_data,
435 }
436};
437
438static void __init ek_add_device_buttons(void)
439{
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440 at91_set_gpio_input(AT91_PIN_PA27, 0); /* btn0 */
441 at91_set_deglitch(AT91_PIN_PA27, 1);
442 at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */
443 at91_set_deglitch(AT91_PIN_PA26, 1);
444 at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */
445 at91_set_deglitch(AT91_PIN_PA25, 1);
446 at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */
447 at91_set_deglitch(AT91_PIN_PA24, 1);
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448
449 platform_device_register(&ek_button_device);
450}
451#else
452static void __init ek_add_device_buttons(void) {}
453#endif
454
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455static void __init ek_board_init(void)
456{
457 /* Serial */
458 at91_add_device_serial();
459 /* USB Host */
460 at91_add_device_usbh(&ek_usbh_data);
461 /* USB Device */
462 at91_add_device_udc(&ek_udc_data);
463 /* I2C */
f230d3f5 464 at91_add_device_i2c(NULL, 0);
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465 /* NAND */
466 at91_add_device_nand(&ek_nand_data);
467 /* DM9000 ethernet */
468 ek_add_device_dm9000();
469
470 /* spi0 and mmc/sd share the same PIO pins */
471#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
472 /* SPI */
473 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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474 /* Touchscreen */
475 ek_add_device_ts();
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476#else
477 /* MMC */
d0760b3b 478 at91_add_device_mmc(0, &ek_mmc_data);
022cbd73 479#endif
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480 /* LCD Controller */
481 at91_add_device_lcdc(&ek_lcdc_data);
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482 /* Push Buttons */
483 ek_add_device_buttons();
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484}
485
486MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
487 /* Maintainer: Atmel */
488 .phys_io = AT91_BASE_SYS,
489 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
490 .boot_params = AT91_SDRAM_BASE + 0x100,
491 .timer = &at91sam926x_timer,
492 .map_io = ek_map_io,
493 .init_irq = ek_init_irq,
494 .init_machine = ek_board_init,
495MACHINE_END