Merge tag 'v3.3.7' into 3.3/master
[zen-stable.git] / arch / arm / mach-at91 / board-sam9261ek.c
blob960a72e57c968321d7669ef1e3a73bffa9b4f1ce
1 /*
2 * linux/arch/arm/mach-at91/board-sam9261ek.c
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2006 Atmel
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.
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.
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
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>
37 #include <video/atmel_lcdc.h>
39 #include <asm/setup.h>
40 #include <asm/mach-types.h>
41 #include <asm/irq.h>
43 #include <asm/mach/arch.h>
44 #include <asm/mach/map.h>
45 #include <asm/mach/irq.h>
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>
53 #include "sam9_smc.h"
54 #include "generic.h"
57 static void __init ek_init_early(void)
59 /* Initialize processor: 18.432 MHz crystal */
60 at91_initialize(18432000);
62 /* Setup the LEDs */
63 at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
65 /* DBGU on ttyS0. (Rx & Tx only) */
66 at91_register_uart(0, 0, 0);
68 /* set serial console to ttyS0 (ie, DBGU) */
69 at91_set_serial_console(0);
73 * DM9000 ethernet device
75 #if defined(CONFIG_DM9000)
76 static struct resource dm9000_resource[] = {
77 [0] = {
78 .start = AT91_CHIPSELECT_2,
79 .end = AT91_CHIPSELECT_2 + 3,
80 .flags = IORESOURCE_MEM
82 [1] = {
83 .start = AT91_CHIPSELECT_2 + 0x44,
84 .end = AT91_CHIPSELECT_2 + 0xFF,
85 .flags = IORESOURCE_MEM
87 [2] = {
88 .flags = IORESOURCE_IRQ
89 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
93 static struct dm9000_plat_data dm9000_platdata = {
94 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
97 static struct platform_device dm9000_device = {
98 .name = "dm9000",
99 .id = 0,
100 .num_resources = ARRAY_SIZE(dm9000_resource),
101 .resource = dm9000_resource,
102 .dev = {
103 .platform_data = &dm9000_platdata,
108 * SMC timings for the DM9000.
109 * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
111 static struct sam9_smc_config __initdata dm9000_smc_config = {
112 .ncs_read_setup = 0,
113 .nrd_setup = 2,
114 .ncs_write_setup = 0,
115 .nwe_setup = 2,
117 .ncs_read_pulse = 8,
118 .nrd_pulse = 4,
119 .ncs_write_pulse = 8,
120 .nwe_pulse = 4,
122 .read_cycle = 16,
123 .write_cycle = 16,
125 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
126 .tdf_cycles = 1,
129 static void __init ek_add_device_dm9000(void)
131 struct resource *r = &dm9000_resource[2];
133 /* Configure chip-select 2 (DM9000) */
134 sam9_smc_configure(0, 2, &dm9000_smc_config);
136 /* Configure Reset signal as output */
137 at91_set_gpio_output(AT91_PIN_PC10, 0);
139 /* Configure Interrupt pin as input, no pull-up */
140 at91_set_gpio_input(AT91_PIN_PC11, 0);
142 r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
143 platform_device_register(&dm9000_device);
145 #else
146 static void __init ek_add_device_dm9000(void) {}
147 #endif /* CONFIG_DM9000 */
151 * USB Host Port
153 static struct at91_usbh_data __initdata ek_usbh_data = {
154 .ports = 2,
155 .vbus_pin = {-EINVAL, -EINVAL},
156 .overcurrent_pin= {-EINVAL, -EINVAL},
161 * USB Device Port
163 static struct at91_udc_data __initdata ek_udc_data = {
164 .vbus_pin = AT91_PIN_PB29,
165 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
170 * NAND flash
172 static struct mtd_partition __initdata ek_nand_partition[] = {
174 .name = "Partition 1",
175 .offset = 0,
176 .size = SZ_256K,
179 .name = "Partition 2",
180 .offset = MTDPART_OFS_NXTBLK,
181 .size = MTDPART_SIZ_FULL,
185 static struct atmel_nand_data __initdata ek_nand_data = {
186 .ale = 22,
187 .cle = 21,
188 .det_pin = -EINVAL,
189 .rdy_pin = AT91_PIN_PC15,
190 .enable_pin = AT91_PIN_PC14,
191 .parts = ek_nand_partition,
192 .num_parts = ARRAY_SIZE(ek_nand_partition),
195 static struct sam9_smc_config __initdata ek_nand_smc_config = {
196 .ncs_read_setup = 0,
197 .nrd_setup = 1,
198 .ncs_write_setup = 0,
199 .nwe_setup = 1,
201 .ncs_read_pulse = 3,
202 .nrd_pulse = 3,
203 .ncs_write_pulse = 3,
204 .nwe_pulse = 3,
206 .read_cycle = 5,
207 .write_cycle = 5,
209 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
210 .tdf_cycles = 2,
213 static void __init ek_add_device_nand(void)
215 ek_nand_data.bus_width_16 = board_have_nand_16bit();
216 /* setup bus-width (8 or 16) */
217 if (ek_nand_data.bus_width_16)
218 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
219 else
220 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
222 /* configure chip-select 3 (NAND) */
223 sam9_smc_configure(0, 3, &ek_nand_smc_config);
225 at91_add_device_nand(&ek_nand_data);
229 * SPI related devices
231 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
234 * ADS7846 Touchscreen
236 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
238 static int ads7843_pendown_state(void)
240 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
243 static struct ads7846_platform_data ads_info = {
244 .model = 7843,
245 .x_min = 150,
246 .x_max = 3830,
247 .y_min = 190,
248 .y_max = 3830,
249 .vref_delay_usecs = 100,
250 .x_plate_ohms = 450,
251 .y_plate_ohms = 250,
252 .pressure_max = 15000,
253 .debounce_max = 1,
254 .debounce_rep = 0,
255 .debounce_tol = (~0),
256 .get_pendown_state = ads7843_pendown_state,
259 static void __init ek_add_device_ts(void)
261 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
262 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
264 #else
265 static void __init ek_add_device_ts(void) {}
266 #endif
269 * Audio
271 static struct at73c213_board_info at73c213_data = {
272 .ssc_id = 1,
273 #if defined(CONFIG_MACH_AT91SAM9261EK)
274 .shortname = "AT91SAM9261-EK external DAC",
275 #else
276 .shortname = "AT91SAM9G10-EK external DAC",
277 #endif
280 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
281 static void __init at73c213_set_clk(struct at73c213_board_info *info)
283 struct clk *pck2;
284 struct clk *plla;
286 pck2 = clk_get(NULL, "pck2");
287 plla = clk_get(NULL, "plla");
289 /* AT73C213 MCK Clock */
290 at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
292 clk_set_parent(pck2, plla);
293 clk_put(plla);
295 info->dac_clk = pck2;
297 #else
298 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
299 #endif
302 * SPI devices
304 static struct spi_board_info ek_spi_devices[] = {
305 { /* DataFlash chip */
306 .modalias = "mtd_dataflash",
307 .chip_select = 0,
308 .max_speed_hz = 15 * 1000 * 1000,
309 .bus_num = 0,
311 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
313 .modalias = "ads7846",
314 .chip_select = 2,
315 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
316 .bus_num = 0,
317 .platform_data = &ads_info,
318 .irq = AT91SAM9261_ID_IRQ0,
319 .controller_data = (void *) AT91_PIN_PA28, /* CS pin */
321 #endif
322 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
323 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
324 .modalias = "mtd_dataflash",
325 .chip_select = 3,
326 .max_speed_hz = 15 * 1000 * 1000,
327 .bus_num = 0,
329 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
330 { /* AT73C213 DAC */
331 .modalias = "at73c213",
332 .chip_select = 3,
333 .max_speed_hz = 10 * 1000 * 1000,
334 .bus_num = 0,
335 .mode = SPI_MODE_1,
336 .platform_data = &at73c213_data,
337 .controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
339 #endif
342 #else /* CONFIG_SPI_ATMEL_* */
343 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
346 * MCI (SD/MMC)
347 * det_pin, wp_pin and vcc_pin are not connected
349 static struct at91_mmc_data __initdata ek_mmc_data = {
350 .wire4 = 1,
351 .det_pin = -EINVAL,
352 .wp_pin = -EINVAL,
353 .vcc_pin = -EINVAL,
356 #endif /* CONFIG_SPI_ATMEL_* */
360 * LCD Controller
362 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
364 #if defined(CONFIG_FB_ATMEL_STN)
366 /* STN */
367 static struct fb_videomode at91_stn_modes[] = {
369 .name = "SP06Q002 @ 75",
370 .refresh = 75,
371 .xres = 320, .yres = 240,
372 .pixclock = KHZ2PICOS(1440),
374 .left_margin = 1, .right_margin = 1,
375 .upper_margin = 0, .lower_margin = 0,
376 .hsync_len = 1, .vsync_len = 1,
378 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
379 .vmode = FB_VMODE_NONINTERLACED,
383 static struct fb_monspecs at91fb_default_stn_monspecs = {
384 .manufacturer = "HIT",
385 .monitor = "SP06Q002",
387 .modedb = at91_stn_modes,
388 .modedb_len = ARRAY_SIZE(at91_stn_modes),
389 .hfmin = 15000,
390 .hfmax = 64000,
391 .vfmin = 50,
392 .vfmax = 150,
395 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
396 | ATMEL_LCDC_DISTYPE_STNMONO \
397 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
398 | ATMEL_LCDC_IFWIDTH_4 \
399 | ATMEL_LCDC_SCANMOD_SINGLE)
401 static void at91_lcdc_stn_power_control(int on)
403 /* backlight */
404 if (on) { /* power up */
405 at91_set_gpio_value(AT91_PIN_PC14, 0);
406 at91_set_gpio_value(AT91_PIN_PC15, 0);
407 } else { /* power down */
408 at91_set_gpio_value(AT91_PIN_PC14, 1);
409 at91_set_gpio_value(AT91_PIN_PC15, 1);
413 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
414 .default_bpp = 1,
415 .default_dmacon = ATMEL_LCDC_DMAEN,
416 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
417 .default_monspecs = &at91fb_default_stn_monspecs,
418 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
419 .guard_time = 1,
420 #if defined(CONFIG_MACH_AT91SAM9G10EK)
421 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
422 #endif
425 #else
427 /* TFT */
428 static struct fb_videomode at91_tft_vga_modes[] = {
430 .name = "TX09D50VM1CCA @ 60",
431 .refresh = 60,
432 .xres = 240, .yres = 320,
433 .pixclock = KHZ2PICOS(4965),
435 .left_margin = 1, .right_margin = 33,
436 .upper_margin = 1, .lower_margin = 0,
437 .hsync_len = 5, .vsync_len = 1,
439 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
440 .vmode = FB_VMODE_NONINTERLACED,
444 static struct fb_monspecs at91fb_default_tft_monspecs = {
445 .manufacturer = "HIT",
446 .monitor = "TX09D50VM1CCA",
448 .modedb = at91_tft_vga_modes,
449 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
450 .hfmin = 15000,
451 .hfmax = 64000,
452 .vfmin = 50,
453 .vfmax = 150,
456 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
457 | ATMEL_LCDC_DISTYPE_TFT \
458 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
460 static void at91_lcdc_tft_power_control(int on)
462 if (on)
463 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
464 else
465 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
468 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
469 .lcdcon_is_backlight = true,
470 .default_bpp = 16,
471 .default_dmacon = ATMEL_LCDC_DMAEN,
472 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
473 .default_monspecs = &at91fb_default_tft_monspecs,
474 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
475 .guard_time = 1,
476 #if defined(CONFIG_MACH_AT91SAM9G10EK)
477 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
478 #endif
480 #endif
482 #else
483 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
484 #endif
488 * GPIO Buttons
490 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
491 static struct gpio_keys_button ek_buttons[] = {
493 .gpio = AT91_PIN_PA27,
494 .code = BTN_0,
495 .desc = "Button 0",
496 .active_low = 1,
497 .wakeup = 1,
500 .gpio = AT91_PIN_PA26,
501 .code = BTN_1,
502 .desc = "Button 1",
503 .active_low = 1,
504 .wakeup = 1,
507 .gpio = AT91_PIN_PA25,
508 .code = BTN_2,
509 .desc = "Button 2",
510 .active_low = 1,
511 .wakeup = 1,
514 .gpio = AT91_PIN_PA24,
515 .code = BTN_3,
516 .desc = "Button 3",
517 .active_low = 1,
518 .wakeup = 1,
522 static struct gpio_keys_platform_data ek_button_data = {
523 .buttons = ek_buttons,
524 .nbuttons = ARRAY_SIZE(ek_buttons),
527 static struct platform_device ek_button_device = {
528 .name = "gpio-keys",
529 .id = -1,
530 .num_resources = 0,
531 .dev = {
532 .platform_data = &ek_button_data,
536 static void __init ek_add_device_buttons(void)
538 at91_set_gpio_input(AT91_PIN_PA27, 1); /* btn0 */
539 at91_set_deglitch(AT91_PIN_PA27, 1);
540 at91_set_gpio_input(AT91_PIN_PA26, 1); /* btn1 */
541 at91_set_deglitch(AT91_PIN_PA26, 1);
542 at91_set_gpio_input(AT91_PIN_PA25, 1); /* btn2 */
543 at91_set_deglitch(AT91_PIN_PA25, 1);
544 at91_set_gpio_input(AT91_PIN_PA24, 1); /* btn3 */
545 at91_set_deglitch(AT91_PIN_PA24, 1);
547 platform_device_register(&ek_button_device);
549 #else
550 static void __init ek_add_device_buttons(void) {}
551 #endif
554 * LEDs
556 static struct gpio_led ek_leds[] = {
557 { /* "bottom" led, green, userled1 to be defined */
558 .name = "ds7",
559 .gpio = AT91_PIN_PA14,
560 .active_low = 1,
561 .default_trigger = "none",
563 { /* "top" led, green, userled2 to be defined */
564 .name = "ds8",
565 .gpio = AT91_PIN_PA13,
566 .active_low = 1,
567 .default_trigger = "none",
569 { /* "power" led, yellow */
570 .name = "ds1",
571 .gpio = AT91_PIN_PA23,
572 .default_trigger = "heartbeat",
576 static void __init ek_board_init(void)
578 /* Serial */
579 at91_add_device_serial();
580 /* USB Host */
581 at91_add_device_usbh(&ek_usbh_data);
582 /* USB Device */
583 at91_add_device_udc(&ek_udc_data);
584 /* I2C */
585 at91_add_device_i2c(NULL, 0);
586 /* NAND */
587 ek_add_device_nand();
588 /* DM9000 ethernet */
589 ek_add_device_dm9000();
591 /* spi0 and mmc/sd share the same PIO pins */
592 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
593 /* SPI */
594 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
595 /* Touchscreen */
596 ek_add_device_ts();
597 /* SSC (to AT73C213) */
598 at73c213_set_clk(&at73c213_data);
599 at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
600 #else
601 /* MMC */
602 at91_add_device_mmc(0, &ek_mmc_data);
603 #endif
604 /* LCD Controller */
605 at91_add_device_lcdc(&ek_lcdc_data);
606 /* Push Buttons */
607 ek_add_device_buttons();
608 /* LEDs */
609 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
612 #if defined(CONFIG_MACH_AT91SAM9261EK)
613 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
614 #else
615 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
616 #endif
617 /* Maintainer: Atmel */
618 .timer = &at91sam926x_timer,
619 .map_io = at91_map_io,
620 .init_early = ek_init_early,
621 .init_irq = at91_init_irq_default,
622 .init_machine = ek_board_init,
623 MACHINE_END