ext3: Flush disk caches on fsync when needed
[deliverable/linux.git] / arch / blackfin / mach-bf538 / boards / ezkit.c
1 /*
2 * File: arch/blackfin/mach-bf538/boards/ezkit.c
3 * Based on: arch/blackfin/mach-bf537/boards/ezkit.c
4 * Author: Aidan Williams <aidan@nicta.com.au>
5 *
6 * Created:
7 * Description:
8 *
9 * Modified:
10 * Copyright 2005 National ICT Australia (NICTA)
11 * Copyright 2004-2008 Analog Devices Inc.
12 *
13 * Bugs: Enter bugs at http://blackfin.uclinux.org/
14 *
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, see the file COPYING, or write
27 * to the Free Software Foundation, Inc.,
28 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 */
30
31 #include <linux/device.h>
32 #include <linux/platform_device.h>
33 #include <linux/mtd/mtd.h>
34 #include <linux/mtd/partitions.h>
35 #include <linux/spi/spi.h>
36 #include <linux/spi/flash.h>
37 #include <linux/irq.h>
38 #include <linux/interrupt.h>
39 #include <asm/bfin5xx_spi.h>
40 #include <asm/dma.h>
41 #include <asm/gpio.h>
42 #include <asm/nand.h>
43 #include <asm/portmux.h>
44 #include <asm/dpmc.h>
45 #include <linux/input.h>
46
47 /*
48 * Name the Board for the /proc/cpuinfo
49 */
50 const char bfin_board_name[] = "ADI BF538-EZKIT";
51
52 /*
53 * Driver needs to know address, irq and flag pin.
54 */
55
56
57 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
58 static struct platform_device rtc_device = {
59 .name = "rtc-bfin",
60 .id = -1,
61 };
62 #endif
63
64 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
65 static struct resource bfin_uart_resources[] = {
66 #ifdef CONFIG_SERIAL_BFIN_UART0
67 {
68 .start = 0xFFC00400,
69 .end = 0xFFC004FF,
70 .flags = IORESOURCE_MEM,
71 },
72 #endif
73 #ifdef CONFIG_SERIAL_BFIN_UART1
74 {
75 .start = 0xFFC02000,
76 .end = 0xFFC020FF,
77 .flags = IORESOURCE_MEM,
78 },
79 #endif
80 #ifdef CONFIG_SERIAL_BFIN_UART2
81 {
82 .start = 0xFFC02100,
83 .end = 0xFFC021FF,
84 .flags = IORESOURCE_MEM,
85 },
86 #endif
87 };
88
89 static struct platform_device bfin_uart_device = {
90 .name = "bfin-uart",
91 .id = 1,
92 .num_resources = ARRAY_SIZE(bfin_uart_resources),
93 .resource = bfin_uart_resources,
94 };
95 #endif
96
97 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
98 #ifdef CONFIG_BFIN_SIR0
99 static struct resource bfin_sir0_resources[] = {
100 {
101 .start = 0xFFC00400,
102 .end = 0xFFC004FF,
103 .flags = IORESOURCE_MEM,
104 },
105 {
106 .start = IRQ_UART0_RX,
107 .end = IRQ_UART0_RX+1,
108 .flags = IORESOURCE_IRQ,
109 },
110 {
111 .start = CH_UART0_RX,
112 .end = CH_UART0_RX+1,
113 .flags = IORESOURCE_DMA,
114 },
115 };
116 static struct platform_device bfin_sir0_device = {
117 .name = "bfin_sir",
118 .id = 0,
119 .num_resources = ARRAY_SIZE(bfin_sir0_resources),
120 .resource = bfin_sir0_resources,
121 };
122 #endif
123 #ifdef CONFIG_BFIN_SIR1
124 static struct resource bfin_sir1_resources[] = {
125 {
126 .start = 0xFFC02000,
127 .end = 0xFFC020FF,
128 .flags = IORESOURCE_MEM,
129 },
130 {
131 .start = IRQ_UART1_RX,
132 .end = IRQ_UART1_RX+1,
133 .flags = IORESOURCE_IRQ,
134 },
135 {
136 .start = CH_UART1_RX,
137 .end = CH_UART1_RX+1,
138 .flags = IORESOURCE_DMA,
139 },
140 };
141 static struct platform_device bfin_sir1_device = {
142 .name = "bfin_sir",
143 .id = 1,
144 .num_resources = ARRAY_SIZE(bfin_sir1_resources),
145 .resource = bfin_sir1_resources,
146 };
147 #endif
148 #ifdef CONFIG_BFIN_SIR2
149 static struct resource bfin_sir2_resources[] = {
150 {
151 .start = 0xFFC02100,
152 .end = 0xFFC021FF,
153 .flags = IORESOURCE_MEM,
154 },
155 {
156 .start = IRQ_UART2_RX,
157 .end = IRQ_UART2_RX+1,
158 .flags = IORESOURCE_IRQ,
159 },
160 {
161 .start = CH_UART2_RX,
162 .end = CH_UART2_RX+1,
163 .flags = IORESOURCE_DMA,
164 },
165 };
166 static struct platform_device bfin_sir2_device = {
167 .name = "bfin_sir",
168 .id = 2,
169 .num_resources = ARRAY_SIZE(bfin_sir2_resources),
170 .resource = bfin_sir2_resources,
171 };
172 #endif
173 #endif
174
175 /*
176 * USB-LAN EzExtender board
177 * Driver needs to know address, irq and flag pin.
178 */
179 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
180 static struct resource smc91x_resources[] = {
181 {
182 .name = "smc91x-regs",
183 .start = 0x20310300,
184 .end = 0x20310300 + 16,
185 .flags = IORESOURCE_MEM,
186 }, {
187 .start = IRQ_PF0,
188 .end = IRQ_PF0,
189 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
190 },
191 };
192 static struct platform_device smc91x_device = {
193 .name = "smc91x",
194 .id = 0,
195 .num_resources = ARRAY_SIZE(smc91x_resources),
196 .resource = smc91x_resources,
197 };
198 #endif
199
200 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
201 /* all SPI peripherals info goes here */
202 #if defined(CONFIG_MTD_M25P80) \
203 || defined(CONFIG_MTD_M25P80_MODULE)
204 /* SPI flash chip (m25p16) */
205 static struct mtd_partition bfin_spi_flash_partitions[] = {
206 {
207 .name = "bootloader(spi)",
208 .size = 0x00040000,
209 .offset = 0,
210 .mask_flags = MTD_CAP_ROM
211 }, {
212 .name = "linux kernel(spi)",
213 .size = 0x1c0000,
214 .offset = 0x40000
215 }
216 };
217
218 static struct flash_platform_data bfin_spi_flash_data = {
219 .name = "m25p80",
220 .parts = bfin_spi_flash_partitions,
221 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
222 .type = "m25p16",
223 };
224
225 static struct bfin5xx_spi_chip spi_flash_chip_info = {
226 .enable_dma = 0, /* use dma transfer with this chip*/
227 .bits_per_word = 8,
228 .cs_change_per_word = 0,
229 };
230 #endif
231
232 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
233 #include <linux/spi/ad7879.h>
234 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
235 .model = 7879, /* Model = AD7879 */
236 .x_plate_ohms = 620, /* 620 Ohm from the touch datasheet */
237 .pressure_max = 10000,
238 .pressure_min = 0,
239 .first_conversion_delay = 3, /* wait 512us before do a first conversion */
240 .acquisition_time = 1, /* 4us acquisition time per sample */
241 .median = 2, /* do 8 measurements */
242 .averaging = 1, /* take the average of 4 middle samples */
243 .pen_down_acc_interval = 255, /* 9.4 ms */
244 .gpio_output = 1, /* configure AUX/VBAT/GPIO as GPIO output */
245 .gpio_default = 1, /* During initialization set GPIO = HIGH */
246 };
247 #endif
248
249 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
250 static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
251 .enable_dma = 0,
252 .bits_per_word = 16,
253 };
254 #endif
255
256 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
257 #include <asm/bfin-lq035q1.h>
258
259 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
260 .mode = LQ035_NORM | LQ035_RGB | LQ035_RL | LQ035_TB,
261 .use_bl = 0, /* let something else control the LCD Blacklight */
262 .gpio_bl = GPIO_PF7,
263 };
264
265 static struct resource bfin_lq035q1_resources[] = {
266 {
267 .start = IRQ_PPI_ERROR,
268 .end = IRQ_PPI_ERROR,
269 .flags = IORESOURCE_IRQ,
270 },
271 };
272
273 static struct platform_device bfin_lq035q1_device = {
274 .name = "bfin-lq035q1",
275 .id = -1,
276 .num_resources = ARRAY_SIZE(bfin_lq035q1_resources),
277 .resource = bfin_lq035q1_resources,
278 .dev = {
279 .platform_data = &bfin_lq035q1_data,
280 },
281 };
282 #endif
283
284 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
285 static struct bfin5xx_spi_chip spidev_chip_info = {
286 .enable_dma = 0,
287 .bits_per_word = 8,
288 };
289 #endif
290
291 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
292 static struct bfin5xx_spi_chip lq035q1_spi_chip_info = {
293 .enable_dma = 0,
294 .bits_per_word = 8,
295 };
296 #endif
297
298 static struct spi_board_info bf538_spi_board_info[] __initdata = {
299 #if defined(CONFIG_MTD_M25P80) \
300 || defined(CONFIG_MTD_M25P80_MODULE)
301 {
302 /* the modalias must be the same as spi device driver name */
303 .modalias = "m25p80", /* Name of spi_driver for this device */
304 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
305 .bus_num = 0, /* Framework bus number */
306 .chip_select = 1, /* SPI_SSEL1*/
307 .platform_data = &bfin_spi_flash_data,
308 .controller_data = &spi_flash_chip_info,
309 .mode = SPI_MODE_3,
310 },
311 #endif
312 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
313 {
314 .modalias = "ad7879",
315 .platform_data = &bfin_ad7879_ts_info,
316 .irq = IRQ_PF3,
317 .max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
318 .bus_num = 0,
319 .chip_select = 1,
320 .controller_data = &spi_ad7879_chip_info,
321 .mode = SPI_CPHA | SPI_CPOL,
322 },
323 #endif
324 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
325 {
326 .modalias = "bfin-lq035q1-spi",
327 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
328 .bus_num = 0,
329 .chip_select = 2,
330 .controller_data = &lq035q1_spi_chip_info,
331 .mode = SPI_CPHA | SPI_CPOL,
332 },
333 #endif
334 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
335 {
336 .modalias = "spidev",
337 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
338 .bus_num = 0,
339 .chip_select = 1,
340 .controller_data = &spidev_chip_info,
341 },
342 #endif
343 };
344
345 /* SPI (0) */
346 static struct resource bfin_spi0_resource[] = {
347 [0] = {
348 .start = SPI0_REGBASE,
349 .end = SPI0_REGBASE + 0xFF,
350 .flags = IORESOURCE_MEM,
351 },
352 [1] = {
353 .start = CH_SPI0,
354 .end = CH_SPI0,
355 .flags = IORESOURCE_DMA,
356 },
357 [2] = {
358 .start = IRQ_SPI0,
359 .end = IRQ_SPI0,
360 .flags = IORESOURCE_IRQ,
361 }
362 };
363
364 /* SPI (1) */
365 static struct resource bfin_spi1_resource[] = {
366 [0] = {
367 .start = SPI1_REGBASE,
368 .end = SPI1_REGBASE + 0xFF,
369 .flags = IORESOURCE_MEM,
370 },
371 [1] = {
372 .start = CH_SPI1,
373 .end = CH_SPI1,
374 .flags = IORESOURCE_DMA,
375 },
376 [2] = {
377 .start = IRQ_SPI1,
378 .end = IRQ_SPI1,
379 .flags = IORESOURCE_IRQ,
380 }
381 };
382
383 /* SPI (2) */
384 static struct resource bfin_spi2_resource[] = {
385 [0] = {
386 .start = SPI2_REGBASE,
387 .end = SPI2_REGBASE + 0xFF,
388 .flags = IORESOURCE_MEM,
389 },
390 [1] = {
391 .start = CH_SPI2,
392 .end = CH_SPI2,
393 .flags = IORESOURCE_IRQ,
394 }
395 };
396
397 /* SPI controller data */
398 static struct bfin5xx_spi_master bf538_spi_master_info0 = {
399 .num_chipselect = 8,
400 .enable_dma = 1, /* master has the ability to do dma transfer */
401 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
402 };
403
404 static struct platform_device bf538_spi_master0 = {
405 .name = "bfin-spi",
406 .id = 0, /* Bus number */
407 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
408 .resource = bfin_spi0_resource,
409 .dev = {
410 .platform_data = &bf538_spi_master_info0, /* Passed to driver */
411 },
412 };
413
414 static struct bfin5xx_spi_master bf538_spi_master_info1 = {
415 .num_chipselect = 8,
416 .enable_dma = 1, /* master has the ability to do dma transfer */
417 .pin_req = {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0},
418 };
419
420 static struct platform_device bf538_spi_master1 = {
421 .name = "bfin-spi",
422 .id = 1, /* Bus number */
423 .num_resources = ARRAY_SIZE(bfin_spi1_resource),
424 .resource = bfin_spi1_resource,
425 .dev = {
426 .platform_data = &bf538_spi_master_info1, /* Passed to driver */
427 },
428 };
429
430 static struct bfin5xx_spi_master bf538_spi_master_info2 = {
431 .num_chipselect = 8,
432 .enable_dma = 1, /* master has the ability to do dma transfer */
433 .pin_req = {P_SPI2_SCK, P_SPI2_MISO, P_SPI2_MOSI, 0},
434 };
435
436 static struct platform_device bf538_spi_master2 = {
437 .name = "bfin-spi",
438 .id = 2, /* Bus number */
439 .num_resources = ARRAY_SIZE(bfin_spi2_resource),
440 .resource = bfin_spi2_resource,
441 .dev = {
442 .platform_data = &bf538_spi_master_info2, /* Passed to driver */
443 },
444 };
445
446 #endif /* spi master and devices */
447
448 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
449 static struct resource bfin_twi0_resource[] = {
450 [0] = {
451 .start = TWI0_REGBASE,
452 .end = TWI0_REGBASE + 0xFF,
453 .flags = IORESOURCE_MEM,
454 },
455 [1] = {
456 .start = IRQ_TWI0,
457 .end = IRQ_TWI0,
458 .flags = IORESOURCE_IRQ,
459 },
460 };
461
462 static struct platform_device i2c_bfin_twi0_device = {
463 .name = "i2c-bfin-twi",
464 .id = 0,
465 .num_resources = ARRAY_SIZE(bfin_twi0_resource),
466 .resource = bfin_twi0_resource,
467 };
468
469 #if !defined(CONFIG_BF542) /* The BF542 only has 1 TWI */
470 static struct resource bfin_twi1_resource[] = {
471 [0] = {
472 .start = TWI1_REGBASE,
473 .end = TWI1_REGBASE + 0xFF,
474 .flags = IORESOURCE_MEM,
475 },
476 [1] = {
477 .start = IRQ_TWI1,
478 .end = IRQ_TWI1,
479 .flags = IORESOURCE_IRQ,
480 },
481 };
482
483 static struct platform_device i2c_bfin_twi1_device = {
484 .name = "i2c-bfin-twi",
485 .id = 1,
486 .num_resources = ARRAY_SIZE(bfin_twi1_resource),
487 .resource = bfin_twi1_resource,
488 };
489 #endif
490 #endif
491
492 static struct resource bfin_gpios_resources = {
493 .start = 0,
494 .end = MAX_BLACKFIN_GPIOS - 1,
495 .flags = IORESOURCE_IRQ,
496 };
497
498 static struct platform_device bfin_gpios_device = {
499 .name = "simple-gpio",
500 .id = -1,
501 .num_resources = 1,
502 .resource = &bfin_gpios_resources,
503 };
504
505 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
506 #include <linux/gpio_keys.h>
507
508 static struct gpio_keys_button bfin_gpio_keys_table[] = {
509 {BTN_0, GPIO_PC7, 1, "gpio-keys: BTN0"},
510 };
511
512 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
513 .buttons = bfin_gpio_keys_table,
514 .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
515 };
516
517 static struct platform_device bfin_device_gpiokeys = {
518 .name = "gpio-keys",
519 .dev = {
520 .platform_data = &bfin_gpio_keys_data,
521 },
522 };
523 #endif
524
525 static const unsigned int cclk_vlev_datasheet[] =
526 {
527 /*
528 * Internal VLEV BF538SBBC1533
529 ****temporarily using these values until data sheet is updated
530 */
531 VRPAIR(VLEV_100, 150000000),
532 VRPAIR(VLEV_100, 250000000),
533 VRPAIR(VLEV_110, 276000000),
534 VRPAIR(VLEV_115, 301000000),
535 VRPAIR(VLEV_120, 525000000),
536 VRPAIR(VLEV_125, 550000000),
537 VRPAIR(VLEV_130, 600000000),
538 };
539
540 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
541 .tuple_tab = cclk_vlev_datasheet,
542 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
543 .vr_settling_time = 25 /* us */,
544 };
545
546 static struct platform_device bfin_dpmc = {
547 .name = "bfin dpmc",
548 .dev = {
549 .platform_data = &bfin_dmpc_vreg_data,
550 },
551 };
552
553 static struct platform_device *cm_bf538_devices[] __initdata = {
554
555 &bfin_dpmc,
556
557 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
558 &rtc_device,
559 #endif
560
561 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
562 &bfin_uart_device,
563 #endif
564
565 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
566 &bf538_spi_master0,
567 &bf538_spi_master1,
568 &bf538_spi_master2,
569 #endif
570
571 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
572 &i2c_bfin_twi0_device,
573 &i2c_bfin_twi1_device,
574 #endif
575
576 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
577 #ifdef CONFIG_BFIN_SIR0
578 &bfin_sir0_device,
579 #endif
580 #ifdef CONFIG_BFIN_SIR1
581 &bfin_sir1_device,
582 #endif
583 #ifdef CONFIG_BFIN_SIR2
584 &bfin_sir2_device,
585 #endif
586 #endif
587
588 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
589 &smc91x_device,
590 #endif
591
592 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
593 &bfin_lq035q1_device,
594 #endif
595
596 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
597 &bfin_device_gpiokeys,
598 #endif
599
600 &bfin_gpios_device,
601 };
602
603 static int __init ezkit_init(void)
604 {
605 printk(KERN_INFO "%s(): registering device resources\n", __func__);
606 platform_add_devices(cm_bf538_devices, ARRAY_SIZE(cm_bf538_devices));
607
608 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
609 spi_register_board_info(bf538_spi_board_info,
610 ARRAY_SIZE(bf538_spi_board_info));
611 #endif
612
613 return 0;
614 }
615
616 arch_initcall(ezkit_init);
This page took 0.047858 seconds and 5 git commands to generate.