Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
[pandora-kernel.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);