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Blackfin arch: fix bux - only reset the PC when necessary, otherwise gdb gets confused
[net-next-2.6.git] / arch / blackfin / mach-bf548 / boards / ezkit.c
CommitLineData
24a07a12
RH		 1/*
2 * File: arch/blackfin/mach-bf548/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 2004-2007 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>
1f83b8f1 37#include <linux/irq.h>
24a07a12 38#include <linux/interrupt.h>
c6c4d7bb 39#include <linux/usb/musb.h>
24a07a12 40#include <asm/bfin5xx_spi.h>
c6c4d7bb
BW		 41#include <asm/cplb.h>
42#include <asm/dma.h>
43#include <asm/gpio.h>
44#include <asm/nand.h>
45#include <asm/mach/bf54x_keys.h>
46#include <linux/input.h>
47#include <linux/spi/ad7877.h>
24a07a12
RH		 48
49/*
50 * Name the Board for the /proc/cpuinfo
51 */
066954a3 52const char bfin_board_name[] = "ADSP-BF548-EZKIT";
24a07a12
RH		 53
54/*
55 * Driver needs to know address, irq and flag pin.
56 */
57
c6c4d7bb
BW		 58#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
59
60#include <asm/mach/bf54x-lq043.h>
61
62static struct bfin_bf54xfb_mach_info bf54x_lq043_data = {
63 .width = 480,
64 .height = 272,
65 .xres = {480, 480, 480},
66 .yres = {272, 272, 272},
67 .bpp = {24, 24, 24},
68 .disp = GPIO_PE3,
69};
70
71static struct resource bf54x_lq043_resources[] = {
72 {
73 .start = IRQ_EPPI0_ERR,
74 .end = IRQ_EPPI0_ERR,
75 .flags = IORESOURCE_IRQ,
76 },
77};
78
79static struct platform_device bf54x_lq043_device = {
80 .name = "bf54x-lq043",
81 .id = -1,
82 .num_resources = ARRAY_SIZE(bf54x_lq043_resources),
83 .resource = bf54x_lq043_resources,
84 .dev = {
85 .platform_data = &bf54x_lq043_data,
86 },
87};
88#endif
89
90#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
8f740ef3 91static const unsigned int bf548_keymap[] = {
c6c4d7bb
BW		 92 KEYVAL(0, 0, KEY_ENTER),
93 KEYVAL(0, 1, KEY_HELP),
94 KEYVAL(0, 2, KEY_0),
95 KEYVAL(0, 3, KEY_BACKSPACE),
96 KEYVAL(1, 0, KEY_TAB),
97 KEYVAL(1, 1, KEY_9),
98 KEYVAL(1, 2, KEY_8),
99 KEYVAL(1, 3, KEY_7),
100 KEYVAL(2, 0, KEY_DOWN),
101 KEYVAL(2, 1, KEY_6),
102 KEYVAL(2, 2, KEY_5),
103 KEYVAL(2, 3, KEY_4),
104 KEYVAL(3, 0, KEY_UP),
105 KEYVAL(3, 1, KEY_3),
106 KEYVAL(3, 2, KEY_2),
107 KEYVAL(3, 3, KEY_1),
108};
109
110static struct bfin_kpad_platform_data bf54x_kpad_data = {
111 .rows = 4,
112 .cols = 4,
8f740ef3
MH		 113 .keymap = bf548_keymap,
114 .keymapsize = ARRAY_SIZE(bf548_keymap),
c6c4d7bb
BW		 115 .repeat = 0,
116 .debounce_time = 5000, /* ns (5ms) */
117 .coldrive_time = 1000, /* ns (1ms) */
118 .keyup_test_interval = 50, /* ms (50ms) */
119};
120
121static struct resource bf54x_kpad_resources[] = {
122 {
123 .start = IRQ_KEY,
124 .end = IRQ_KEY,
125 .flags = IORESOURCE_IRQ,
126 },
127};
128
129static struct platform_device bf54x_kpad_device = {
130 .name = "bf54x-keys",
131 .id = -1,
132 .num_resources = ARRAY_SIZE(bf54x_kpad_resources),
133 .resource = bf54x_kpad_resources,
134 .dev = {
135 .platform_data = &bf54x_kpad_data,
136 },
137};
138#endif
139
24a07a12
RH		 140#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
141static struct platform_device rtc_device = {
142 .name = "rtc-bfin",
143 .id = -1,
144};
145#endif
146
147#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
148static struct resource bfin_uart_resources[] = {
149#ifdef CONFIG_SERIAL_BFIN_UART0
150 {
151 .start = 0xFFC00400,
152 .end = 0xFFC004FF,
153 .flags = IORESOURCE_MEM,
154 },
155#endif
156#ifdef CONFIG_SERIAL_BFIN_UART1
157 {
158 .start = 0xFFC02000,
159 .end = 0xFFC020FF,
160 .flags = IORESOURCE_MEM,
161 },
162#endif
163#ifdef CONFIG_SERIAL_BFIN_UART2
164 {
165 .start = 0xFFC02100,
166 .end = 0xFFC021FF,
167 .flags = IORESOURCE_MEM,
168 },
169#endif
170#ifdef CONFIG_SERIAL_BFIN_UART3
171 {
172 .start = 0xFFC03100,
173 .end = 0xFFC031FF,
174 },
175#endif
176};
177
178static struct platform_device bfin_uart_device = {
179 .name = "bfin-uart",
180 .id = 1,
181 .num_resources = ARRAY_SIZE(bfin_uart_resources),
182 .resource = bfin_uart_resources,
183};
184#endif
185
c6c4d7bb
BW		 186#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
187static struct resource smsc911x_resources[] = {
188 {
189 .name = "smsc911x-memory",
190 .start = 0x24000000,
191 .end = 0x24000000 + 0xFF,
192 .flags = IORESOURCE_MEM,
193 },
194 {
195 .start = IRQ_PE8,
196 .end = IRQ_PE8,
197 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
198 },
199};
200static struct platform_device smsc911x_device = {
201 .name = "smsc911x",
202 .id = 0,
203 .num_resources = ARRAY_SIZE(smsc911x_resources),
204 .resource = smsc911x_resources,
205};
206#endif
207
208#if defined(CONFIG_USB_BF54x_HCD) || defined(CONFIG_USB_BF54x_HCD_MODULE)
209static struct resource bf54x_hcd_resources[] = {
210 {
211 .start = 0xFFC03C00,
212 .end = 0xFFC040FF,
213 .flags = IORESOURCE_MEM,
214 },
215};
216
217static struct platform_device bf54x_hcd = {
218 .name = "bf54x-hcd",
219 .id = 0,
220 .num_resources = ARRAY_SIZE(bf54x_hcd_resources),
221 .resource = bf54x_hcd_resources,
222};
223#endif
224
225#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
226static struct resource musb_resources[] = {
227 [0] = {
228 .start = 0xFFC03C00,
229 .end = 0xFFC040FF,
230 .flags = IORESOURCE_MEM,
231 },
232 [1] = { /* general IRQ */
233 .start = IRQ_USB_INT0,
234 .end = IRQ_USB_INT0,
235 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
236 },
237 [2] = { /* DMA IRQ */
238 .start = IRQ_USB_DMA,
239 .end = IRQ_USB_DMA,
240 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
241 },
242};
243
244static struct musb_hdrc_platform_data musb_plat = {
245#ifdef CONFIG_USB_MUSB_OTG
246 .mode = MUSB_OTG,
247#elif CONFIG_USB_MUSB_HDRC_HCD
248 .mode = MUSB_HOST,
249#elif CONFIG_USB_GADGET_MUSB_HDRC
250 .mode = MUSB_PERIPHERAL,
251#endif
252 .multipoint = 1,
253};
254
255static u64 musb_dmamask = ~(u32)0;
256
257static struct platform_device musb_device = {
258 .name = "musb_hdrc",
259 .id = 0,
260 .dev = {
261 .dma_mask = &musb_dmamask,
262 .coherent_dma_mask = 0xffffffff,
263 .platform_data = &musb_plat,
264 },
265 .num_resources = ARRAY_SIZE(musb_resources),
266 .resource = musb_resources,
267};
268#endif
269
270#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
271static struct resource bfin_atapi_resources[] = {
272 {
273 .start = 0xFFC03800,
274 .end = 0xFFC0386F,
275 .flags = IORESOURCE_MEM,
276 },
277 {
278 .start = IRQ_ATAPI_ERR,
279 .end = IRQ_ATAPI_ERR,
280 .flags = IORESOURCE_IRQ,
281 },
282};
283
284static struct platform_device bfin_atapi_device = {
285 .name = "pata-bf54x",
286 .id = -1,
287 .num_resources = ARRAY_SIZE(bfin_atapi_resources),
288 .resource = bfin_atapi_resources,
289};
290#endif
291
292#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
293static struct mtd_partition partition_info[] = {
294 {
295 .name = "Linux Kernel",
296 .offset = 0,
297 .size = 4 * SIZE_1M,
298 },
299 {
300 .name = "File System",
301 .offset = 4 * SIZE_1M,
302 .size = (256 - 4) * SIZE_1M,
303 },
304};
305
306static struct bf5xx_nand_platform bf5xx_nand_platform = {
307 .page_size = NFC_PG_SIZE_256,
308 .data_width = NFC_NWIDTH_8,
309 .partitions = partition_info,
310 .nr_partitions = ARRAY_SIZE(partition_info),
311 .rd_dly = 3,
312 .wr_dly = 3,
313};
314
315static struct resource bf5xx_nand_resources[] = {
316 {
317 .start = 0xFFC03B00,
318 .end = 0xFFC03B4F,
319 .flags = IORESOURCE_MEM,
320 },
321 {
322 .start = CH_NFC,
323 .end = CH_NFC,
324 .flags = IORESOURCE_IRQ,
325 },
326};
327
328static struct platform_device bf5xx_nand_device = {
329 .name = "bf5xx-nand",
330 .id = 0,
331 .num_resources = ARRAY_SIZE(bf5xx_nand_resources),
332 .resource = bf5xx_nand_resources,
333 .dev = {
334 .platform_data = &bf5xx_nand_platform,
335 },
336};
337#endif
338
339#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN)
340static struct platform_device bf54x_sdh_device = {
341 .name = "bfin-sdh",
342 .id = 0,
343};
344#endif
345
346#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
347/* all SPI peripherals info goes here */
348#if defined(CONFIG_MTD_M25P80) \
349 || defined(CONFIG_MTD_M25P80_MODULE)
350/* SPI flash chip (m25p16) */
351static struct mtd_partition bfin_spi_flash_partitions[] = {
352 {
353 .name = "bootloader",
354 .size = 0x00040000,
355 .offset = 0,
356 .mask_flags = MTD_CAP_ROM
357 }, {
358 .name = "linux kernel",
359 .size = 0x1c0000,
360 .offset = 0x40000
361 }
362};
363
364static struct flash_platform_data bfin_spi_flash_data = {
365 .name = "m25p80",
366 .parts = bfin_spi_flash_partitions,
367 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
368 .type = "m25p16",
369};
370
371static struct bfin5xx_spi_chip spi_flash_chip_info = {
372 .enable_dma = 0, /* use dma transfer with this chip*/
373 .bits_per_word = 8,
374 .cs_change_per_word = 0,
375};
376#endif
377
378#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
379static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
380 .cs_change_per_word = 1,
381 .enable_dma = 0,
382 .bits_per_word = 16,
383};
384
385static const struct ad7877_platform_data bfin_ad7877_ts_info = {
386 .model = 7877,
387 .vref_delay_usecs = 50, /* internal, no capacitor */
388 .x_plate_ohms = 419,
389 .y_plate_ohms = 486,
390 .pressure_max = 1000,
391 .pressure_min = 0,
392 .stopacq_polarity = 1,
393 .first_conversion_delay = 3,
394 .acquisition_time = 1,
395 .averaging = 1,
396 .pen_down_acc_interval = 1,
397};
398#endif
399
400static struct spi_board_info bf54x_spi_board_info[] __initdata = {
401#if defined(CONFIG_MTD_M25P80) \
402 || defined(CONFIG_MTD_M25P80_MODULE)
403 {
404 /* the modalias must be the same as spi device driver name */
405 .modalias = "m25p80", /* Name of spi_driver for this device */
406 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
407 .bus_num = 0, /* Framework bus number */
408 .chip_select = 1, /* SPI_SSEL1*/
409 .platform_data = &bfin_spi_flash_data,
410 .controller_data = &spi_flash_chip_info,
411 .mode = SPI_MODE_3,
412 },
413#endif
414#if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
415{
416 .modalias = "ad7877",
417 .platform_data = &bfin_ad7877_ts_info,
418 .irq = IRQ_PJ11,
419 .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */
420 .bus_num = 0,
421 .chip_select = 2,
422 .controller_data = &spi_ad7877_chip_info,
423},
424#endif
425};
426
427/* SPI (0) */
428static struct resource bfin_spi0_resource[] = {
429 [0] = {
430 .start = SPI0_REGBASE,
431 .end = SPI0_REGBASE + 0xFF,
432 .flags = IORESOURCE_MEM,
433 },
434 [1] = {
435 .start = CH_SPI0,
436 .end = CH_SPI0,
437 .flags = IORESOURCE_IRQ,
438 }
439};
440
441/* SPI (1) */
442static struct resource bfin_spi1_resource[] = {
443 [0] = {
444 .start = SPI1_REGBASE,
445 .end = SPI1_REGBASE + 0xFF,
446 .flags = IORESOURCE_MEM,
447 },
448 [1] = {
449 .start = CH_SPI1,
450 .end = CH_SPI1,
451 .flags = IORESOURCE_IRQ,
452 }
453};
454
455/* SPI controller data */
456static struct bfin5xx_spi_master bf54x_spi_master_info = {
457 .num_chipselect = 8,
458 .enable_dma = 1, /* master has the ability to do dma transfer */
459};
460
461static struct platform_device bf54x_spi_master0 = {
462 .name = "bfin-spi",
463 .id = 0, /* Bus number */
464 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
465 .resource = bfin_spi0_resource,
466 .dev = {
467 .platform_data = &bf54x_spi_master_info, /* Passed to driver */
468 },
469};
470
471static struct platform_device bf54x_spi_master1 = {
472 .name = "bfin-spi",
473 .id = 1, /* Bus number */
474 .num_resources = ARRAY_SIZE(bfin_spi1_resource),
475 .resource = bfin_spi1_resource,
476 .dev = {
477 .platform_data = &bf54x_spi_master_info, /* Passed to driver */
478 },
479};
480#endif /* spi master and devices */
481
482#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
483static struct resource bfin_twi0_resource[] = {
484 [0] = {
485 .start = TWI0_REGBASE,
486 .end = TWI0_REGBASE + 0xFF,
487 .flags = IORESOURCE_MEM,
488 },
489 [1] = {
490 .start = IRQ_TWI0,
491 .end = IRQ_TWI0,
492 .flags = IORESOURCE_IRQ,
493 },
494};
495
496static struct platform_device i2c_bfin_twi0_device = {
497 .name = "i2c-bfin-twi",
498 .id = 0,
499 .num_resources = ARRAY_SIZE(bfin_twi0_resource),
500 .resource = bfin_twi0_resource,
501};
502
503static struct resource bfin_twi1_resource[] = {
504 [0] = {
505 .start = TWI1_REGBASE,
506 .end = TWI1_REGBASE + 0xFF,
507 .flags = IORESOURCE_MEM,
508 },
509 [1] = {
510 .start = IRQ_TWI1,
511 .end = IRQ_TWI1,
512 .flags = IORESOURCE_IRQ,
513 },
514};
515
516static struct platform_device i2c_bfin_twi1_device = {
517 .name = "i2c-bfin-twi",
518 .id = 1,
519 .num_resources = ARRAY_SIZE(bfin_twi1_resource),
520 .resource = bfin_twi1_resource,
521};
522#endif
523
24a07a12
RH		 524static struct platform_device *ezkit_devices[] __initdata = {
525#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
526 &rtc_device,
527#endif
528
529#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
530 &bfin_uart_device,
531#endif
c6c4d7bb
BW		 532
533#if defined(CONFIG_FB_BF54X_LQ043) || defined(CONFIG_FB_BF54X_LQ043_MODULE)
534 &bf54x_lq043_device,
535#endif
536
537#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
538 &smsc911x_device,
539#endif
540
541#if defined(CONFIG_USB_BF54x_HCD) || defined(CONFIG_USB_BF54x_HCD_MODULE)
542 &bf54x_hcd,
543#endif
544
545#if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
546 &musb_device,
547#endif
548
549#if defined(CONFIG_PATA_BF54X) || defined(CONFIG_PATA_BF54X_MODULE)
550 &bfin_atapi_device,
551#endif
552
553#if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
554 &bf5xx_nand_device,
555#endif
556
557#if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN)
558 &bf54x_sdh_device,
559#endif
560
561#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
562 &bf54x_spi_master0,
d4b1d273 563 &bf54x_spi_master1,
c6c4d7bb
BW		 564#endif
565
566#if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
567 &bf54x_kpad_device,
568#endif
569
570#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
571 &i2c_bfin_twi0_device,
572 &i2c_bfin_twi1_device,
573#endif
24a07a12
RH		 574};
575
576static int __init stamp_init(void)
577{
578 printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__);
579 platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
c6c4d7bb
BW		 580
581#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
582 spi_register_board_info(bf54x_spi_board_info,
583 ARRAY_SIZE(bf54x_spi_board_info));
584#endif
585
24a07a12
RH		 586 return 0;
587}
588
589arch_initcall(stamp_init);
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