Merge remote-tracking branch 'l2-mtd/master'
[linux-2.6/next.git] / arch / arm / mach-at91 / board-sam9261ek.c
blobb005b738e8ff7bc6dc4af3c8e173421bd9b234c7
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 .start = AT91_PIN_PC11,
89 .end = AT91_PIN_PC11,
90 .flags = IORESOURCE_IRQ
91 | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
95 static struct dm9000_plat_data dm9000_platdata = {
96 .flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
99 static struct platform_device dm9000_device = {
100 .name = "dm9000",
101 .id = 0,
102 .num_resources = ARRAY_SIZE(dm9000_resource),
103 .resource = dm9000_resource,
104 .dev = {
105 .platform_data = &dm9000_platdata,
110 * SMC timings for the DM9000.
111 * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
113 static struct sam9_smc_config __initdata dm9000_smc_config = {
114 .ncs_read_setup = 0,
115 .nrd_setup = 2,
116 .ncs_write_setup = 0,
117 .nwe_setup = 2,
119 .ncs_read_pulse = 8,
120 .nrd_pulse = 4,
121 .ncs_write_pulse = 8,
122 .nwe_pulse = 4,
124 .read_cycle = 16,
125 .write_cycle = 16,
127 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
128 .tdf_cycles = 1,
131 static void __init ek_add_device_dm9000(void)
133 /* Configure chip-select 2 (DM9000) */
134 sam9_smc_configure(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 platform_device_register(&dm9000_device);
144 #else
145 static void __init ek_add_device_dm9000(void) {}
146 #endif /* CONFIG_DM9000 */
150 * USB Host Port
152 static struct at91_usbh_data __initdata ek_usbh_data = {
153 .ports = 2,
158 * USB Device Port
160 static struct at91_udc_data __initdata ek_udc_data = {
161 .vbus_pin = AT91_PIN_PB29,
162 .pullup_pin = 0, /* pull-up driven by UDC */
167 * NAND flash
169 static struct mtd_partition __initdata ek_nand_partition[] = {
171 .name = "Partition 1",
172 .offset = 0,
173 .size = SZ_256K,
176 .name = "Partition 2",
177 .offset = MTDPART_OFS_NXTBLK,
178 .size = MTDPART_SIZ_FULL,
182 static struct atmel_nand_data __initdata ek_nand_data = {
183 .ale = 22,
184 .cle = 21,
185 // .det_pin = ... not connected
186 .rdy_pin = AT91_PIN_PC15,
187 .enable_pin = AT91_PIN_PC14,
188 .parts = ek_nand_partition,
189 .num_parts = ARRAY_SIZE(ek_nand_partition),
192 static struct sam9_smc_config __initdata ek_nand_smc_config = {
193 .ncs_read_setup = 0,
194 .nrd_setup = 1,
195 .ncs_write_setup = 0,
196 .nwe_setup = 1,
198 .ncs_read_pulse = 3,
199 .nrd_pulse = 3,
200 .ncs_write_pulse = 3,
201 .nwe_pulse = 3,
203 .read_cycle = 5,
204 .write_cycle = 5,
206 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
207 .tdf_cycles = 2,
210 static void __init ek_add_device_nand(void)
212 ek_nand_data.bus_width_16 = board_have_nand_16bit();
213 /* setup bus-width (8 or 16) */
214 if (ek_nand_data.bus_width_16)
215 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
216 else
217 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
219 /* configure chip-select 3 (NAND) */
220 sam9_smc_configure(3, &ek_nand_smc_config);
222 at91_add_device_nand(&ek_nand_data);
226 * SPI related devices
228 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
231 * ADS7846 Touchscreen
233 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
235 static int ads7843_pendown_state(void)
237 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
240 static struct ads7846_platform_data ads_info = {
241 .model = 7843,
242 .x_min = 150,
243 .x_max = 3830,
244 .y_min = 190,
245 .y_max = 3830,
246 .vref_delay_usecs = 100,
247 .x_plate_ohms = 450,
248 .y_plate_ohms = 250,
249 .pressure_max = 15000,
250 .debounce_max = 1,
251 .debounce_rep = 0,
252 .debounce_tol = (~0),
253 .get_pendown_state = ads7843_pendown_state,
256 static void __init ek_add_device_ts(void)
258 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
259 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
261 #else
262 static void __init ek_add_device_ts(void) {}
263 #endif
266 * Audio
268 static struct at73c213_board_info at73c213_data = {
269 .ssc_id = 1,
270 #if defined(CONFIG_MACH_AT91SAM9261EK)
271 .shortname = "AT91SAM9261-EK external DAC",
272 #else
273 .shortname = "AT91SAM9G10-EK external DAC",
274 #endif
277 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
278 static void __init at73c213_set_clk(struct at73c213_board_info *info)
280 struct clk *pck2;
281 struct clk *plla;
283 pck2 = clk_get(NULL, "pck2");
284 plla = clk_get(NULL, "plla");
286 /* AT73C213 MCK Clock */
287 at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
289 clk_set_parent(pck2, plla);
290 clk_put(plla);
292 info->dac_clk = pck2;
294 #else
295 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
296 #endif
299 * SPI devices
301 static struct spi_board_info ek_spi_devices[] = {
302 { /* DataFlash chip */
303 .modalias = "mtd_dataflash",
304 .chip_select = 0,
305 .max_speed_hz = 15 * 1000 * 1000,
306 .bus_num = 0,
308 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
310 .modalias = "ads7846",
311 .chip_select = 2,
312 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
313 .bus_num = 0,
314 .platform_data = &ads_info,
315 .irq = AT91SAM9261_ID_IRQ0,
316 .controller_data = (void *) AT91_PIN_PA28, /* CS pin */
318 #endif
319 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
320 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
321 .modalias = "mtd_dataflash",
322 .chip_select = 3,
323 .max_speed_hz = 15 * 1000 * 1000,
324 .bus_num = 0,
326 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
327 { /* AT73C213 DAC */
328 .modalias = "at73c213",
329 .chip_select = 3,
330 .max_speed_hz = 10 * 1000 * 1000,
331 .bus_num = 0,
332 .mode = SPI_MODE_1,
333 .platform_data = &at73c213_data,
334 .controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
336 #endif
339 #else /* CONFIG_SPI_ATMEL_* */
340 /* spi0 and mmc/sd share the same PIO pins: cannot be used at the same time */
343 * MCI (SD/MMC)
344 * det_pin, wp_pin and vcc_pin are not connected
346 static struct at91_mmc_data __initdata ek_mmc_data = {
347 .wire4 = 1,
350 #endif /* CONFIG_SPI_ATMEL_* */
354 * LCD Controller
356 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
358 #if defined(CONFIG_FB_ATMEL_STN)
360 /* STN */
361 static struct fb_videomode at91_stn_modes[] = {
363 .name = "SP06Q002 @ 75",
364 .refresh = 75,
365 .xres = 320, .yres = 240,
366 .pixclock = KHZ2PICOS(1440),
368 .left_margin = 1, .right_margin = 1,
369 .upper_margin = 0, .lower_margin = 0,
370 .hsync_len = 1, .vsync_len = 1,
372 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
373 .vmode = FB_VMODE_NONINTERLACED,
377 static struct fb_monspecs at91fb_default_stn_monspecs = {
378 .manufacturer = "HIT",
379 .monitor = "SP06Q002",
381 .modedb = at91_stn_modes,
382 .modedb_len = ARRAY_SIZE(at91_stn_modes),
383 .hfmin = 15000,
384 .hfmax = 64000,
385 .vfmin = 50,
386 .vfmax = 150,
389 #define AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
390 | ATMEL_LCDC_DISTYPE_STNMONO \
391 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
392 | ATMEL_LCDC_IFWIDTH_4 \
393 | ATMEL_LCDC_SCANMOD_SINGLE)
395 static void at91_lcdc_stn_power_control(int on)
397 /* backlight */
398 if (on) { /* power up */
399 at91_set_gpio_value(AT91_PIN_PC14, 0);
400 at91_set_gpio_value(AT91_PIN_PC15, 0);
401 } else { /* power down */
402 at91_set_gpio_value(AT91_PIN_PC14, 1);
403 at91_set_gpio_value(AT91_PIN_PC15, 1);
407 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
408 .default_bpp = 1,
409 .default_dmacon = ATMEL_LCDC_DMAEN,
410 .default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
411 .default_monspecs = &at91fb_default_stn_monspecs,
412 .atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
413 .guard_time = 1,
414 #if defined(CONFIG_MACH_AT91SAM9G10EK)
415 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
416 #endif
419 #else
421 /* TFT */
422 static struct fb_videomode at91_tft_vga_modes[] = {
424 .name = "TX09D50VM1CCA @ 60",
425 .refresh = 60,
426 .xres = 240, .yres = 320,
427 .pixclock = KHZ2PICOS(4965),
429 .left_margin = 1, .right_margin = 33,
430 .upper_margin = 1, .lower_margin = 0,
431 .hsync_len = 5, .vsync_len = 1,
433 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
434 .vmode = FB_VMODE_NONINTERLACED,
438 static struct fb_monspecs at91fb_default_tft_monspecs = {
439 .manufacturer = "HIT",
440 .monitor = "TX09D50VM1CCA",
442 .modedb = at91_tft_vga_modes,
443 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
444 .hfmin = 15000,
445 .hfmax = 64000,
446 .vfmin = 50,
447 .vfmax = 150,
450 #define AT91SAM9261_DEFAULT_TFT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
451 | ATMEL_LCDC_DISTYPE_TFT \
452 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
454 static void at91_lcdc_tft_power_control(int on)
456 if (on)
457 at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
458 else
459 at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
462 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
463 .lcdcon_is_backlight = true,
464 .default_bpp = 16,
465 .default_dmacon = ATMEL_LCDC_DMAEN,
466 .default_lcdcon2 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
467 .default_monspecs = &at91fb_default_tft_monspecs,
468 .atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
469 .guard_time = 1,
470 #if defined(CONFIG_MACH_AT91SAM9G10EK)
471 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
472 #endif
474 #endif
476 #else
477 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
478 #endif
482 * GPIO Buttons
484 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
485 static struct gpio_keys_button ek_buttons[] = {
487 .gpio = AT91_PIN_PA27,
488 .code = BTN_0,
489 .desc = "Button 0",
490 .active_low = 1,
491 .wakeup = 1,
494 .gpio = AT91_PIN_PA26,
495 .code = BTN_1,
496 .desc = "Button 1",
497 .active_low = 1,
498 .wakeup = 1,
501 .gpio = AT91_PIN_PA25,
502 .code = BTN_2,
503 .desc = "Button 2",
504 .active_low = 1,
505 .wakeup = 1,
508 .gpio = AT91_PIN_PA24,
509 .code = BTN_3,
510 .desc = "Button 3",
511 .active_low = 1,
512 .wakeup = 1,
516 static struct gpio_keys_platform_data ek_button_data = {
517 .buttons = ek_buttons,
518 .nbuttons = ARRAY_SIZE(ek_buttons),
521 static struct platform_device ek_button_device = {
522 .name = "gpio-keys",
523 .id = -1,
524 .num_resources = 0,
525 .dev = {
526 .platform_data = &ek_button_data,
530 static void __init ek_add_device_buttons(void)
532 at91_set_gpio_input(AT91_PIN_PA27, 1); /* btn0 */
533 at91_set_deglitch(AT91_PIN_PA27, 1);
534 at91_set_gpio_input(AT91_PIN_PA26, 1); /* btn1 */
535 at91_set_deglitch(AT91_PIN_PA26, 1);
536 at91_set_gpio_input(AT91_PIN_PA25, 1); /* btn2 */
537 at91_set_deglitch(AT91_PIN_PA25, 1);
538 at91_set_gpio_input(AT91_PIN_PA24, 1); /* btn3 */
539 at91_set_deglitch(AT91_PIN_PA24, 1);
541 platform_device_register(&ek_button_device);
543 #else
544 static void __init ek_add_device_buttons(void) {}
545 #endif
548 * LEDs
550 static struct gpio_led ek_leds[] = {
551 { /* "bottom" led, green, userled1 to be defined */
552 .name = "ds7",
553 .gpio = AT91_PIN_PA14,
554 .active_low = 1,
555 .default_trigger = "none",
557 { /* "top" led, green, userled2 to be defined */
558 .name = "ds8",
559 .gpio = AT91_PIN_PA13,
560 .active_low = 1,
561 .default_trigger = "none",
563 { /* "power" led, yellow */
564 .name = "ds1",
565 .gpio = AT91_PIN_PA23,
566 .default_trigger = "heartbeat",
570 static void __init ek_board_init(void)
572 /* Serial */
573 at91_add_device_serial();
574 /* USB Host */
575 at91_add_device_usbh(&ek_usbh_data);
576 /* USB Device */
577 at91_add_device_udc(&ek_udc_data);
578 /* I2C */
579 at91_add_device_i2c(NULL, 0);
580 /* NAND */
581 ek_add_device_nand();
582 /* DM9000 ethernet */
583 ek_add_device_dm9000();
585 /* spi0 and mmc/sd share the same PIO pins */
586 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
587 /* SPI */
588 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
589 /* Touchscreen */
590 ek_add_device_ts();
591 /* SSC (to AT73C213) */
592 at73c213_set_clk(&at73c213_data);
593 at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
594 #else
595 /* MMC */
596 at91_add_device_mmc(0, &ek_mmc_data);
597 #endif
598 /* LCD Controller */
599 at91_add_device_lcdc(&ek_lcdc_data);
600 /* Push Buttons */
601 ek_add_device_buttons();
602 /* LEDs */
603 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
606 #if defined(CONFIG_MACH_AT91SAM9261EK)
607 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
608 #else
609 MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
610 #endif
611 /* Maintainer: Atmel */
612 .timer = &at91sam926x_timer,
613 .map_io = at91_map_io,
614 .init_early = ek_init_early,
615 .init_irq = at91_init_irq_default,
616 .init_machine = ek_board_init,
617 MACHINE_END