aboutsummaryrefslogtreecommitdiff
path: root/arch/blackfin/mach-bf538/boards/ezkit.c
blob: 57695b4c3c0964c60413da1b7c55e889059282ae (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
/*
 * File:         arch/blackfin/mach-bf538/boards/ezkit.c
 * Based on:     arch/blackfin/mach-bf537/boards/ezkit.c
 * Author:       Aidan Williams <aidan@nicta.com.au>
 *
 * Created:
 * Description:
 *
 * Modified:
 *               Copyright 2005 National ICT Australia (NICTA)
 *               Copyright 2004-2008 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see the file COPYING, or write
 * to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <asm/bfin5xx_spi.h>
#include <asm/dma.h>
#include <asm/gpio.h>
#include <asm/nand.h>
#include <asm/portmux.h>
#include <asm/dpmc.h>
#include <linux/input.h>

/*
 * Name the Board for the /proc/cpuinfo
 */
const char bfin_board_name[] = "ADI BF538-EZKIT";

/*
 *  Driver needs to know address, irq and flag pin.
 */


#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
static struct platform_device rtc_device = {
	.name = "rtc-bfin",
	.id   = -1,
};
#endif

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
static struct resource bfin_uart_resources[] = {
#ifdef CONFIG_SERIAL_BFIN_UART0
	{
		.start = 0xFFC00400,
		.end = 0xFFC004FF,
		.flags = IORESOURCE_MEM,
	},
#endif
#ifdef CONFIG_SERIAL_BFIN_UART1
	{
		.start = 0xFFC02000,
		.end = 0xFFC020FF,
		.flags = IORESOURCE_MEM,
	},
#endif
#ifdef CONFIG_SERIAL_BFIN_UART2
	{
		.start = 0xFFC02100,
		.end = 0xFFC021FF,
		.flags = IORESOURCE_MEM,
	},
#endif
};

static struct platform_device bfin_uart_device = {
	.name = "bfin-uart",
	.id = 1,
	.num_resources = ARRAY_SIZE(bfin_uart_resources),
	.resource = bfin_uart_resources,
};
#endif

#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
#ifdef CONFIG_BFIN_SIR0
static struct resource bfin_sir0_resources[] = {
	{
		.start = 0xFFC00400,
		.end = 0xFFC004FF,
		.flags = IORESOURCE_MEM,
	},
	{
		.start = IRQ_UART0_RX,
		.end = IRQ_UART0_RX+1,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = CH_UART0_RX,
		.end = CH_UART0_RX+1,
		.flags = IORESOURCE_DMA,
	},
};
static struct platform_device bfin_sir0_device = {
	.name = "bfin_sir",
	.id = 0,
	.num_resources = ARRAY_SIZE(bfin_sir0_resources),
	.resource = bfin_sir0_resources,
};
#endif
#ifdef CONFIG_BFIN_SIR1
static struct resource bfin_sir1_resources[] = {
	{
		.start = 0xFFC02000,
		.end = 0xFFC020FF,
		.flags = IORESOURCE_MEM,
	},
	{
		.start = IRQ_UART1_RX,
		.end = IRQ_UART1_RX+1,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = CH_UART1_RX,
		.end = CH_UART1_RX+1,
		.flags = IORESOURCE_DMA,
	},
};
static struct platform_device bfin_sir1_device = {
	.name = "bfin_sir",
	.id = 1,
	.num_resources = ARRAY_SIZE(bfin_sir1_resources),
	.resource = bfin_sir1_resources,
};
#endif
#ifdef CONFIG_BFIN_SIR2
static struct resource bfin_sir2_resources[] = {
	{
		.start = 0xFFC02100,
		.end = 0xFFC021FF,
		.flags = IORESOURCE_MEM,
	},
	{
		.start = IRQ_UART2_RX,
		.end = IRQ_UART2_RX+1,
		.flags = IORESOURCE_IRQ,
	},
	{
		.start = CH_UART2_RX,
		.end = CH_UART2_RX+1,
		.flags = IORESOURCE_DMA,
	},
};
static struct platform_device bfin_sir2_device = {
	.name = "bfin_sir",
	.id = 2,
	.num_resources = ARRAY_SIZE(bfin_sir2_resources),
	.resource = bfin_sir2_resources,
};
#endif
#endif

/*
 *  USB-LAN EzExtender board
 *  Driver needs to know address, irq and flag pin.
 */
#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
static struct resource smc91x_resources[] = {
	{
		.name = "smc91x-regs",
		.start = 0x20310300,
		.end = 0x20310300 + 16,
		.flags = IORESOURCE_MEM,
	}, {
		.start = IRQ_PF0,
		.end = IRQ_PF0,
		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
	},
};
static struct platform_device smc91x_device = {
	.name = "smc91x",
	.id = 0,
	.num_resources = ARRAY_SIZE(smc91x_resources),
	.resource = smc91x_resources,
};
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
/* all SPI peripherals info goes here */
#if defined(CONFIG_MTD_M25P80) \
	|| defined(CONFIG_MTD_M25P80_MODULE)
/* SPI flash chip (m25p16) */
static struct mtd_partition bfin_spi_flash_partitions[] = {
	{
		.name = "bootloader(spi)",
		.size = 0x00040000,
		.offset = 0,
		.mask_flags = MTD_CAP_ROM
	}, {
		.name = "linux kernel(spi)",
		.size = 0x1c0000,
		.offset = 0x40000
	}
};

static struct flash_platform_data bfin_spi_flash_data = {
	.name = "m25p80",
	.parts = bfin_spi_flash_partitions,
	.nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
	.type = "m25p16",
};

static struct bfin5xx_spi_chip spi_flash_chip_info = {
	.enable_dma = 0,         /* use dma transfer with this chip*/
	.bits_per_word = 8,
	.cs_change_per_word = 0,
};
#endif

#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
#include <linux/spi/ad7879.h>
static const struct ad7879_platform_data bfin_ad7879_ts_info = {
	.model			= 7879,	/* Model = AD7879 */
	.x_plate_ohms		= 620,	/* 620 Ohm from the touch datasheet */
	.pressure_max		= 10000,
	.pressure_min		= 0,
	.first_conversion_delay = 3,	/* wait 512us before do a first conversion */
	.acquisition_time 	= 1,	/* 4us acquisition time per sample */
	.median			= 2,	/* do 8 measurements */
	.averaging 		= 1,	/* take the average of 4 middle samples */
	.pen_down_acc_interval 	= 255,	/* 9.4 ms */
	.gpio_output		= 1,	/* configure AUX/VBAT/GPIO as GPIO output */
	.gpio_default 		= 1,	/* During initialization set GPIO = HIGH */
};
#endif

#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
	.enable_dma = 0,
	.bits_per_word = 16,
};
#endif

#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
#include <asm/bfin-lq035q1.h>

static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
	.mode = 	LQ035_NORM | LQ035_RGB | LQ035_RL | LQ035_TB,
	.use_bl = 	0,	/* let something else control the LCD Blacklight */
	.gpio_bl =	GPIO_PF7,
};

static struct resource bfin_lq035q1_resources[] = {
	{
		.start = IRQ_PPI_ERROR,
		.end = IRQ_PPI_ERROR,
		.flags = IORESOURCE_IRQ,
	},
};

static struct platform_device bfin_lq035q1_device = {
	.name		= "bfin-lq035q1",
	.id		= -1,
	.num_resources 	= ARRAY_SIZE(bfin_lq035q1_resources),
	.resource 	= bfin_lq035q1_resources,
	.dev		= {
		.platform_data = &bfin_lq035q1_data,
	},
};
#endif

#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
static struct bfin5xx_spi_chip spidev_chip_info = {
	.enable_dma = 0,
	.bits_per_word = 8,
};
#endif

#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
static struct bfin5xx_spi_chip lq035q1_spi_chip_info = {
	.enable_dma	= 0,
	.bits_per_word	= 8,
};
#endif

static struct spi_board_info bf538_spi_board_info[] __initdata = {
#if defined(CONFIG_MTD_M25P80) \
	|| defined(CONFIG_MTD_M25P80_MODULE)
	{
		/* the modalias must be the same as spi device driver name */
		.modalias = "m25p80", /* Name of spi_driver for this device */
		.max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0, /* Framework bus number */
		.chip_select = 1, /* SPI_SSEL1*/
		.platform_data = &bfin_spi_flash_data,
		.controller_data = &spi_flash_chip_info,
		.mode = SPI_MODE_3,
	},
#endif
#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
	{
		.modalias = "ad7879",
		.platform_data = &bfin_ad7879_ts_info,
		.irq = IRQ_PF3,
		.max_speed_hz = 5000000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 1,
		.controller_data = &spi_ad7879_chip_info,
		.mode = SPI_CPHA | SPI_CPOL,
	},
#endif
#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
	{
		.modalias = "bfin-lq035q1-spi",
		.max_speed_hz = 20000000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 2,
		.controller_data = &lq035q1_spi_chip_info,
		.mode = SPI_CPHA | SPI_CPOL,
	},
#endif
#if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
	{
		.modalias = "spidev",
		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
		.bus_num = 0,
		.chip_select = 1,
		.controller_data = &spidev_chip_info,
	},
#endif
};

/* SPI (0) */
static struct resource bfin_spi0_resource[] = {
	[0] = {
		.start = SPI0_REGBASE,
		.end   = SPI0_REGBASE + 0xFF,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = CH_SPI0,
		.end   = CH_SPI0,
		.flags = IORESOURCE_DMA,
	},
	[2] = {
		.start = IRQ_SPI0,
		.end   = IRQ_SPI0,
		.flags = IORESOURCE_IRQ,
	}
};

/* SPI (1) */
static struct resource bfin_spi1_resource[] = {
	[0] = {
		.start = SPI1_REGBASE,
		.end   = SPI1_REGBASE + 0xFF,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = CH_SPI1,
		.end   = CH_SPI1,
		.flags = IORESOURCE_DMA,
	},
	[2] = {
		.start = IRQ_SPI1,
		.end   = IRQ_SPI1,
		.flags = IORESOURCE_IRQ,
	}
};

/* SPI (2) */
static struct resource bfin_spi2_resource[] = {
	[0] = {
		.start = SPI2_REGBASE,
		.end   = SPI2_REGBASE + 0xFF,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = CH_SPI2,
		.end   = CH_SPI2,
		.flags = IORESOURCE_IRQ,
	}
};

/* SPI controller data */
static struct bfin5xx_spi_master bf538_spi_master_info0 = {
	.num_chipselect = 8,
	.enable_dma = 1,  /* master has the ability to do dma transfer */
	.pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
};

static struct platform_device bf538_spi_master0 = {
	.name = "bfin-spi",
	.id = 0, /* Bus number */
	.num_resources = ARRAY_SIZE(bfin_spi0_resource),
	.resource = bfin_spi0_resource,
	.dev = {
		.platform_data = &bf538_spi_master_info0, /* Passed to driver */
		},
};

static struct bfin5xx_spi_master bf538_spi_master_info1 = {
	.num_chipselect = 8,
	.enable_dma = 1,  /* master has the ability to do dma transfer */
	.pin_req = {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0},
};

static struct platform_device bf538_spi_master1 = {
	.name = "bfin-spi",
	.id = 1, /* Bus number */
	.num_resources = ARRAY_SIZE(bfin_spi1_resource),
	.resource = bfin_spi1_resource,
	.dev = {
		.platform_data = &bf538_spi_master_info1, /* Passed to driver */
		},
};

static struct bfin5xx_spi_master bf538_spi_master_info2 = {
	.num_chipselect = 8,
	.enable_dma = 1,  /* master has the ability to do dma transfer */
	.pin_req = {P_SPI2_SCK, P_SPI2_MISO, P_SPI2_MOSI, 0},
};

static struct platform_device bf538_spi_master2 = {
	.name = "bfin-spi",
	.id = 2, /* Bus number */
	.num_resources = ARRAY_SIZE(bfin_spi2_resource),
	.resource = bfin_spi2_resource,
	.dev = {
		.platform_data = &bf538_spi_master_info2, /* Passed to driver */
		},
};

#endif  /* spi master and devices */

#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
static struct resource bfin_twi0_resource[] = {
	[0] = {
		.start = TWI0_REGBASE,
		.end   = TWI0_REGBASE + 0xFF,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = IRQ_TWI0,
		.end   = IRQ_TWI0,
		.flags = IORESOURCE_IRQ,
	},
};

static struct platform_device i2c_bfin_twi0_device = {
	.name = "i2c-bfin-twi",
	.id = 0,
	.num_resources = ARRAY_SIZE(bfin_twi0_resource),
	.resource = bfin_twi0_resource,
};

#if !defined(CONFIG_BF542)	/* The BF542 only has 1 TWI */
static struct resource bfin_twi1_resource[] = {
	[0] = {
		.start = TWI1_REGBASE,
		.end   = TWI1_REGBASE + 0xFF,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = IRQ_TWI1,
		.end   = IRQ_TWI1,
		.flags = IORESOURCE_IRQ,
	},
};

static struct platform_device i2c_bfin_twi1_device = {
	.name = "i2c-bfin-twi",
	.id = 1,
	.num_resources = ARRAY_SIZE(bfin_twi1_resource),
	.resource = bfin_twi1_resource,
};
#endif
#endif

static struct resource bfin_gpios_resources = {
	.start = 0,
	.end   = MAX_BLACKFIN_GPIOS - 1,
	.flags = IORESOURCE_IRQ,
};

static struct platform_device bfin_gpios_device = {
	.name = "simple-gpio",
	.id = -1,
	.num_resources = 1,
	.resource = &bfin_gpios_resources,
};

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
#include <linux/gpio_keys.h>

static struct gpio_keys_button bfin_gpio_keys_table[] = {
	{BTN_0, GPIO_PC7, 1, "gpio-keys: BTN0"},
};

static struct gpio_keys_platform_data bfin_gpio_keys_data = {
	.buttons        = bfin_gpio_keys_table,
	.nbuttons       = ARRAY_SIZE(bfin_gpio_keys_table),
};

static struct platform_device bfin_device_gpiokeys = {
	.name      = "gpio-keys",
	.dev = {
		.platform_data = &bfin_gpio_keys_data,
	},
};
#endif

static const unsigned int cclk_vlev_datasheet[] =
{
/*
 * Internal VLEV BF538SBBC1533
 ****temporarily using these values until data sheet is updated
 */
	VRPAIR(VLEV_100, 150000000),
	VRPAIR(VLEV_100, 250000000),
	VRPAIR(VLEV_110, 276000000),
	VRPAIR(VLEV_115, 301000000),
	VRPAIR(VLEV_120, 525000000),
	VRPAIR(VLEV_125, 550000000),
	VRPAIR(VLEV_130, 600000000),
};

static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
	.tuple_tab = cclk_vlev_datasheet,
	.tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
	.vr_settling_time = 25 /* us */,
};

static struct platform_device bfin_dpmc = {
	.name = "bfin dpmc",
	.dev = {
		.platform_data = &bfin_dmpc_vreg_data,
	},
};

static struct platform_device *cm_bf538_devices[] __initdata = {

	&bfin_dpmc,

#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
	&rtc_device,
#endif

#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
	&bfin_uart_device,
#endif

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
	&bf538_spi_master0,
	&bf538_spi_master1,
	&bf538_spi_master2,
#endif

#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
	&i2c_bfin_twi0_device,
	&i2c_bfin_twi1_device,
#endif

#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
#ifdef CONFIG_BFIN_SIR0
	&bfin_sir0_device,
#endif
#ifdef CONFIG_BFIN_SIR1
	&bfin_sir1_device,
#endif
#ifdef CONFIG_BFIN_SIR2
	&bfin_sir2_device,
#endif
#endif

#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
	&smc91x_device,
#endif

#if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
	&bfin_lq035q1_device,
#endif

#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
	&bfin_device_gpiokeys,
#endif

	&bfin_gpios_device,
};

static int __init ezkit_init(void)
{
	printk(KERN_INFO "%s(): registering device resources\n", __func__);
	platform_add_devices(cm_bf538_devices, ARRAY_SIZE(cm_bf538_devices));

#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
	spi_register_board_info(bf538_spi_board_info,
			ARRAY_SIZE(bf538_spi_board_info));
#endif

	return 0;
}

arch_initcall(ezkit_init);