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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>
47#include <asm/arch/at91sam926x_mc.h>
48
49#include "generic.h"
50
51
52/*
53 * Serial port configuration.
54 * 0 .. 2 = USART0 .. USART2
55 * 3 = DBGU
56 */
57static struct at91_uart_config __initdata ek_uart_config = {
58 .console_tty = 0, /* ttyS0 */
59 .nr_tty = 1,
60 .tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */
61};
62
63static void __init ek_map_io(void)
64{
65 /* Initialize processor: 18.432 MHz crystal */
66 at91sam9261_initialize(18432000);
67
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68 /* Setup the LEDs */
69 at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
70
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71 /* Setup the serial ports and console */
72 at91_init_serial(&ek_uart_config);
73}
74
75static void __init ek_init_irq(void)
76{
77 at91sam9261_init_interrupts(NULL);
78}
79
80
81/*
82 * DM9000 ethernet device
83 */
84#if defined(CONFIG_DM9000)
85static struct resource at91sam9261_dm9000_resource[] = {
86 [0] = {
87 .start = AT91_CHIPSELECT_2,
88 .end = AT91_CHIPSELECT_2 + 3,
89 .flags = IORESOURCE_MEM
90 },
91 [1] = {
92 .start = AT91_CHIPSELECT_2 + 0x44,
93 .end = AT91_CHIPSELECT_2 + 0xFF,
94 .flags = IORESOURCE_MEM
95 },
96 [2] = {
97 .start = AT91_PIN_PC11,
98 .end = AT91_PIN_PC11,
99 .flags = IORESOURCE_IRQ
100 }
101};
102
103static struct dm9000_plat_data dm9000_platdata = {
104 .flags = DM9000_PLATF_16BITONLY,
105};
106
107static struct platform_device at91sam9261_dm9000_device = {
108 .name = "dm9000",
109 .id = 0,
110 .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
111 .resource = at91sam9261_dm9000_resource,
112 .dev = {
113 .platform_data = &dm9000_platdata,
114 }
115};
116
117static void __init ek_add_device_dm9000(void)
118{
119 /*
120 * Configure Chip-Select 2 on SMC for the DM9000.
121 * Note: These timings were calculated for MASTER_CLOCK = 100000000
122 * according to the DM9000 timings.
123 */
124 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));
125 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));
126 at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
127 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));
128
129 /* Configure Reset signal as output */
130 at91_set_gpio_output(AT91_PIN_PC10, 0);
131
132 /* Configure Interrupt pin as input, no pull-up */
133 at91_set_gpio_input(AT91_PIN_PC11, 0);
134
135 platform_device_register(&at91sam9261_dm9000_device);
136}
137#else
138static void __init ek_add_device_dm9000(void) {}
139#endif /* CONFIG_DM9000 */
140
141
142/*
143 * USB Host Port
144 */
145static struct at91_usbh_data __initdata ek_usbh_data = {
146 .ports = 2,
147};
148
149
150/*
151 * USB Device Port
152 */
153static struct at91_udc_data __initdata ek_udc_data = {
154 .vbus_pin = AT91_PIN_PB29,
155 .pullup_pin = 0, /* pull-up driven by UDC */
156};
157
158
159/*
160 * MCI (SD/MMC)
161 */
162static struct at91_mmc_data __initdata ek_mmc_data = {
163 .wire4 = 1,
164// .det_pin = ... not connected
165// .wp_pin = ... not connected
166// .vcc_pin = ... not connected
167};
168
169
170/*
171 * NAND flash
172 */
173static struct mtd_partition __initdata ek_nand_partition[] = {
174 {
175 .name = "Partition 1",
176 .offset = 0,
177 .size = 256 * 1024,
178 },
179 {
180 .name = "Partition 2",
181 .offset = 256 * 1024 ,
182 .size = MTDPART_SIZ_FULL,
183 },
184};
185
cdea4606 186static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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187{
188 *num_partitions = ARRAY_SIZE(ek_nand_partition);
189 return ek_nand_partition;
190}
191
192static struct at91_nand_data __initdata ek_nand_data = {
193 .ale = 22,
194 .cle = 21,
195// .det_pin = ... not connected
196 .rdy_pin = AT91_PIN_PC15,
197 .enable_pin = AT91_PIN_PC14,
198 .partition_info = nand_partitions,
199#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
200 .bus_width_16 = 1,
201#else
202 .bus_width_16 = 0,
203#endif
204};
205
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206/*
207 * ADS7846 Touchscreen
208 */
209#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
210
211static int ads7843_pendown_state(void)
212{
213 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
214}
215
216static struct ads7846_platform_data ads_info = {
217 .model = 7843,
218 .x_min = 150,
219 .x_max = 3830,
220 .y_min = 190,
221 .y_max = 3830,
222 .vref_delay_usecs = 100,
223 .x_plate_ohms = 450,
224 .y_plate_ohms = 250,
225 .pressure_max = 15000,
226 .debounce_max = 1,
227 .debounce_rep = 0,
228 .debounce_tol = (~0),
229 .get_pendown_state = ads7843_pendown_state,
230};
231
232static void __init ek_add_device_ts(void)
233{
234 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
235 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
236}
237#else
238static void __init ek_add_device_ts(void) {}
239#endif
240
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241/*
242 * SPI devices
243 */
244static struct spi_board_info ek_spi_devices[] = {
245 { /* DataFlash chip */
246 .modalias = "mtd_dataflash",
247 .chip_select = 0,
248 .max_speed_hz = 15 * 1000 * 1000,
249 .bus_num = 0,
250 },
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251#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
252 {
253 .modalias = "ads7846",
254 .chip_select = 2,
255 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
256 .bus_num = 0,
257 .platform_data = &ads_info,
258 .irq = AT91SAM9261_ID_IRQ0,
259 },
260#endif
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261#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
262 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
263 .modalias = "mtd_dataflash",
264 .chip_select = 3,
265 .max_speed_hz = 15 * 1000 * 1000,
266 .bus_num = 0,
267 },
23522728 268#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
022cbd73 269 { /* AT73C213 DAC */
23522728 270 .modalias = "at73c213",
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271 .chip_select = 3,
272 .max_speed_hz = 10 * 1000 * 1000,
273 .bus_num = 0,
274 },
275#endif
276};
277
278
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279/*
280 * LCD Controller
281 */
282#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
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283
284#if defined(CONFIG_FB_ATMEL_STN)
285
286/* STN */
287static struct fb_videomode at91_stn_modes[] = {
288 {
289 .name = "SP06Q002 @ 75",
290 .refresh = 75,
291 .xres = 320, .yres = 240,
292 .pixclock = KHZ2PICOS(1440),
293
294 .left_margin = 1, .right_margin = 1,
295 .upper_margin = 0, .lower_margin = 0,
296 .hsync_len = 1, .vsync_len = 1,
297
298 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
299 .vmode = FB_VMODE_NONINTERLACED,
300 },
301};
302
303static struct fb_monspecs at91fb_default_stn_monspecs = {
304 .manufacturer = "HIT",
305 .monitor = "SP06Q002",
306
307 .modedb = at91_stn_modes,
308 .modedb_len = ARRAY_SIZE(at91_stn_modes),
309 .hfmin = 15000,
310 .hfmax = 64000,
311 .vfmin = 50,
312 .vfmax = 150,
313};
314
315#define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
316 | ATMEL_LCDC_DISTYPE_STNMONO \
317 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
318 | ATMEL_LCDC_IFWIDTH_4 \
319 | ATMEL_LCDC_SCANMOD_SINGLE)
320
321static void at91_lcdc_stn_power_control(int on)
322{
323 /* backlight */
324 if (on) { /* power up */
325 at91_set_gpio_value(AT91_PIN_PC14, 0);
326 at91_set_gpio_value(AT91_PIN_PC15, 0);
327 } else { /* power down */
328 at91_set_gpio_value(AT91_PIN_PC14, 1);
329 at91_set_gpio_value(AT91_PIN_PC15, 1);
330 }
331}
332
333static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
334 .default_bpp = 1,
335 .default_dmacon = ATMEL_LCDC_DMAEN,
336 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
337 .default_monspecs = &at91fb_default_stn_monspecs,
338 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
339 .guard_time = 1,
340};
341
342#else
343
344/* TFT */
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345static struct fb_videomode at91_tft_vga_modes[] = {
346 {
347 .name = "TX09D50VM1CCA @ 60",
348 .refresh = 60,
349 .xres = 240, .yres = 320,
350 .pixclock = KHZ2PICOS(4965),
351
352 .left_margin = 1, .right_margin = 33,
353 .upper_margin = 1, .lower_margin = 0,
354 .hsync_len = 5, .vsync_len = 1,
355
356 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
357 .vmode = FB_VMODE_NONINTERLACED,
358 },
359};
360
51708748 361static struct fb_monspecs at91fb_default_tft_monspecs = {
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362 .manufacturer = "HIT",
363 .monitor = "TX09D50VM1CCA",
364
365 .modedb = at91_tft_vga_modes,
366 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
367 .hfmin = 15000,
368 .hfmax = 64000,
369 .vfmin = 50,
370 .vfmax = 150,
371};
372
51708748 373#define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
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374 | ATMEL_LCDC_DISTYPE_TFT \
375 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
376
51708748 377static void at91_lcdc_tft_power_control(int on)
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378{
379 if (on)
380 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
381 else
382 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
383}
384
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385static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
386 .default_bpp = 16,
387 .default_dmacon = ATMEL_LCDC_DMAEN,
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388 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
389 .default_monspecs = &at91fb_default_tft_monspecs,
390 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
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391 .guard_time = 1,
392};
51708748 393#endif
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394
395#else
396static struct atmel_lcdfb_info __initdata ek_lcdc_data;
397#endif
398
399
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400/*
401 * GPIO Buttons
402 */
403#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
404static struct gpio_keys_button ek_buttons[] = {
405 {
406 .gpio = AT91_PIN_PA27,
eaf858a9 407 .code = BTN_0,
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408 .desc = "Button 0",
409 .active_low = 1,
410 },
411 {
412 .gpio = AT91_PIN_PA26,
eaf858a9 413 .code = BTN_1,
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414 .desc = "Button 1",
415 .active_low = 1,
416 },
417 {
418 .gpio = AT91_PIN_PA25,
eaf858a9 419 .code = BTN_2,
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420 .desc = "Button 2",
421 .active_low = 1,
422 },
423 {
424 .gpio = AT91_PIN_PA24,
eaf858a9 425 .code = BTN_3,
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426 .desc = "Button 3",
427 .active_low = 1,
428 }
429};
430
431static struct gpio_keys_platform_data ek_button_data = {
432 .buttons = ek_buttons,
433 .nbuttons = ARRAY_SIZE(ek_buttons),
434};
435
436static struct platform_device ek_button_device = {
437 .name = "gpio-keys",
438 .id = -1,
439 .num_resources = 0,
440 .dev = {
441 .platform_data = &ek_button_data,
442 }
443};
444
445static void __init ek_add_device_buttons(void)
446{
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447 at91_set_gpio_input(AT91_PIN_PA27, 0); /* btn0 */
448 at91_set_deglitch(AT91_PIN_PA27, 1);
449 at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */
450 at91_set_deglitch(AT91_PIN_PA26, 1);
451 at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */
452 at91_set_deglitch(AT91_PIN_PA25, 1);
453 at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */
454 at91_set_deglitch(AT91_PIN_PA24, 1);
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455
456 platform_device_register(&ek_button_device);
457}
458#else
459static void __init ek_add_device_buttons(void) {}
460#endif
461
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462static void __init ek_board_init(void)
463{
464 /* Serial */
465 at91_add_device_serial();
466 /* USB Host */
467 at91_add_device_usbh(&ek_usbh_data);
468 /* USB Device */
469 at91_add_device_udc(&ek_udc_data);
470 /* I2C */
f230d3f5 471 at91_add_device_i2c(NULL, 0);
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472 /* NAND */
473 at91_add_device_nand(&ek_nand_data);
474 /* DM9000 ethernet */
475 ek_add_device_dm9000();
476
477 /* spi0 and mmc/sd share the same PIO pins */
478#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
479 /* SPI */
480 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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481 /* Touchscreen */
482 ek_add_device_ts();
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483#else
484 /* MMC */
d0760b3b 485 at91_add_device_mmc(0, &ek_mmc_data);
022cbd73 486#endif
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487 /* LCD Controller */
488 at91_add_device_lcdc(&ek_lcdc_data);
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489 /* Push Buttons */
490 ek_add_device_buttons();
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491}
492
493MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
494 /* Maintainer: Atmel */
495 .phys_io = AT91_BASE_SYS,
496 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
497 .boot_params = AT91_SDRAM_BASE + 0x100,
498 .timer = &at91sam926x_timer,
499 .map_io = ek_map_io,
500 .init_irq = ek_init_irq,
501 .init_machine = ek_board_init,
502MACHINE_END