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spi-topcliff-pch: supports a spi mode setup and bit order setup by IO control
[zen-stable.git] / arch / arm / mach-at91 / at91cap9_devices.c
blobd298fb7cb210379a771ee52c98b05260a378769c
1 /*
2 * arch/arm/mach-at91/at91cap9_devices.c
3 *
4 * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
5 * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
6 * Copyright (C) 2007 Atmel Corporation.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 */
14 #include <asm/mach/arch.h>
15 #include <asm/mach/map.h>
16 #include <asm/mach/irq.h>
17
18 #include <linux/dma-mapping.h>
19 #include <linux/gpio.h>
20 #include <linux/platform_device.h>
21 #include <linux/i2c-gpio.h>
22
23 #include <video/atmel_lcdc.h>
24
25 #include <mach/board.h>
26 #include <mach/cpu.h>
27 #include <mach/at91cap9.h>
28 #include <mach/at91cap9_matrix.h>
29 #include <mach/at91sam9_smc.h>
30
31 #include "generic.h"
32
33
34 /* --------------------------------------------------------------------
35 * USB Host
36 * -------------------------------------------------------------------- */
37
38 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
39 static u64 ohci_dmamask = DMA_BIT_MASK(32);
40 static struct at91_usbh_data usbh_data;
41
42 static struct resource usbh_resources[] = {
43 [0] = {
44 .start = AT91CAP9_UHP_BASE,
45 .end = AT91CAP9_UHP_BASE + SZ_1M - 1,
46 .flags = IORESOURCE_MEM,
47 },
48 [1] = {
49 .start = AT91CAP9_ID_UHP,
50 .end = AT91CAP9_ID_UHP,
51 .flags = IORESOURCE_IRQ,
52 },
53 };
54
55 static struct platform_device at91_usbh_device = {
56 .name = "at91_ohci",
57 .id = -1,
58 .dev = {
59 .dma_mask = &ohci_dmamask,
60 .coherent_dma_mask = DMA_BIT_MASK(32),
61 .platform_data = &usbh_data,
62 },
63 .resource = usbh_resources,
64 .num_resources = ARRAY_SIZE(usbh_resources),
65 };
66
67 void __init at91_add_device_usbh(struct at91_usbh_data *data)
68 {
69 int i;
70
71 if (!data)
72 return;
73
74 if (cpu_is_at91cap9_revB())
75 irq_set_irq_type(AT91CAP9_ID_UHP, IRQ_TYPE_LEVEL_HIGH);
76
77 /* Enable VBus control for UHP ports */
78 for (i = 0; i < data->ports; i++) {
79 if (gpio_is_valid(data->vbus_pin[i]))
80 at91_set_gpio_output(data->vbus_pin[i], 0);
81 }
82
83 /* Enable overcurrent notification */
84 for (i = 0; i < data->ports; i++) {
85 if (data->overcurrent_pin[i])
86 at91_set_gpio_input(data->overcurrent_pin[i], 1);
87 }
88
89 usbh_data = *data;
90 platform_device_register(&at91_usbh_device);
91 }
92 #else
93 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
94 #endif
95
96
97 /* --------------------------------------------------------------------
98 * USB HS Device (Gadget)
99 * -------------------------------------------------------------------- */
100
101 #if defined(CONFIG_USB_ATMEL_USBA) || defined(CONFIG_USB_ATMEL_USBA_MODULE)
102
103 static struct resource usba_udc_resources[] = {
104 [0] = {
105 .start = AT91CAP9_UDPHS_FIFO,
106 .end = AT91CAP9_UDPHS_FIFO + SZ_512K - 1,
107 .flags = IORESOURCE_MEM,
108 },
109 [1] = {
110 .start = AT91CAP9_BASE_UDPHS,
111 .end = AT91CAP9_BASE_UDPHS + SZ_1K - 1,
112 .flags = IORESOURCE_MEM,
113 },
114 [2] = {
115 .start = AT91CAP9_ID_UDPHS,
116 .end = AT91CAP9_ID_UDPHS,
117 .flags = IORESOURCE_IRQ,
118 },
119 };
120
121 #define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
122 [idx] = { \
123 .name = nam, \
124 .index = idx, \
125 .fifo_size = maxpkt, \
126 .nr_banks = maxbk, \
127 .can_dma = dma, \
128 .can_isoc = isoc, \
129 }
130
131 static struct usba_ep_data usba_udc_ep[] = {
132 EP("ep0", 0, 64, 1, 0, 0),
133 EP("ep1", 1, 1024, 3, 1, 1),
134 EP("ep2", 2, 1024, 3, 1, 1),
135 EP("ep3", 3, 1024, 2, 1, 1),
136 EP("ep4", 4, 1024, 2, 1, 1),
137 EP("ep5", 5, 1024, 2, 1, 0),
138 EP("ep6", 6, 1024, 2, 1, 0),
139 EP("ep7", 7, 1024, 2, 0, 0),
140 };
141
142 #undef EP
143
144 /*
145 * pdata doesn't have room for any endpoints, so we need to
146 * append room for the ones we need right after it.
147 */
148 static struct {
149 struct usba_platform_data pdata;
150 struct usba_ep_data ep[8];
151 } usba_udc_data;
152
153 static struct platform_device at91_usba_udc_device = {
154 .name = "atmel_usba_udc",
155 .id = -1,
156 .dev = {
157 .platform_data = &usba_udc_data.pdata,
158 },
159 .resource = usba_udc_resources,
160 .num_resources = ARRAY_SIZE(usba_udc_resources),
161 };
162
163 void __init at91_add_device_usba(struct usba_platform_data *data)
164 {
165 if (cpu_is_at91cap9_revB()) {
166 irq_set_irq_type(AT91CAP9_ID_UDPHS, IRQ_TYPE_LEVEL_HIGH);
167 at91_sys_write(AT91_MATRIX_UDPHS, AT91_MATRIX_SELECT_UDPHS |
168 AT91_MATRIX_UDPHS_BYPASS_LOCK);
169 }
170 else
171 at91_sys_write(AT91_MATRIX_UDPHS, AT91_MATRIX_SELECT_UDPHS);
172
173 /*
174 * Invalid pins are 0 on AT91, but the usba driver is shared
175 * with AVR32, which use negative values instead. Once/if
176 * gpio_is_valid() is ported to AT91, revisit this code.
177 */
178 usba_udc_data.pdata.vbus_pin = -EINVAL;
179 usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
180 memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
181
182 if (data && gpio_is_valid(data->vbus_pin)) {
183 at91_set_gpio_input(data->vbus_pin, 0);
184 at91_set_deglitch(data->vbus_pin, 1);
185 usba_udc_data.pdata.vbus_pin = data->vbus_pin;
186 }
187
188 /* Pullup pin is handled internally by USB device peripheral */
189
190 platform_device_register(&at91_usba_udc_device);
191 }
192 #else
193 void __init at91_add_device_usba(struct usba_platform_data *data) {}
194 #endif
195
196
197 /* --------------------------------------------------------------------
198 * Ethernet
199 * -------------------------------------------------------------------- */
200
201 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
202 static u64 eth_dmamask = DMA_BIT_MASK(32);
203 static struct macb_platform_data eth_data;
204
205 static struct resource eth_resources[] = {
206 [0] = {
207 .start = AT91CAP9_BASE_EMAC,
208 .end = AT91CAP9_BASE_EMAC + SZ_16K - 1,
209 .flags = IORESOURCE_MEM,
210 },
211 [1] = {
212 .start = AT91CAP9_ID_EMAC,
213 .end = AT91CAP9_ID_EMAC,
214 .flags = IORESOURCE_IRQ,
215 },
216 };
217
218 static struct platform_device at91cap9_eth_device = {
219 .name = "macb",
220 .id = -1,
221 .dev = {
222 .dma_mask = &eth_dmamask,
223 .coherent_dma_mask = DMA_BIT_MASK(32),
224 .platform_data = &eth_data,
225 },
226 .resource = eth_resources,
227 .num_resources = ARRAY_SIZE(eth_resources),
228 };
229
230 void __init at91_add_device_eth(struct macb_platform_data *data)
231 {
232 if (!data)
233 return;
234
235 if (gpio_is_valid(data->phy_irq_pin)) {
236 at91_set_gpio_input(data->phy_irq_pin, 0);
237 at91_set_deglitch(data->phy_irq_pin, 1);
238 }
239
240 /* Pins used for MII and RMII */
241 at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */
242 at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
243 at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
244 at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
245 at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
246 at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
247 at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
248 at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
249 at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
250 at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
251
252 if (!data->is_rmii) {
253 at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */
254 at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
255 at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
256 at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
257 at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
258 at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
259 at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
260 at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
261 }
262
263 eth_data = *data;
264 platform_device_register(&at91cap9_eth_device);
265 }
266 #else
267 void __init at91_add_device_eth(struct macb_platform_data *data) {}
268 #endif
269
270
271 /* --------------------------------------------------------------------
272 * MMC / SD
273 * -------------------------------------------------------------------- */
274
275 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
276 static u64 mmc_dmamask = DMA_BIT_MASK(32);
277 static struct at91_mmc_data mmc0_data, mmc1_data;
278
279 static struct resource mmc0_resources[] = {
280 [0] = {
281 .start = AT91CAP9_BASE_MCI0,
282 .end = AT91CAP9_BASE_MCI0 + SZ_16K - 1,
283 .flags = IORESOURCE_MEM,
284 },
285 [1] = {
286 .start = AT91CAP9_ID_MCI0,
287 .end = AT91CAP9_ID_MCI0,
288 .flags = IORESOURCE_IRQ,
289 },
290 };
291
292 static struct platform_device at91cap9_mmc0_device = {
293 .name = "at91_mci",
294 .id = 0,
295 .dev = {
296 .dma_mask = &mmc_dmamask,
297 .coherent_dma_mask = DMA_BIT_MASK(32),
298 .platform_data = &mmc0_data,
299 },
300 .resource = mmc0_resources,
301 .num_resources = ARRAY_SIZE(mmc0_resources),
302 };
303
304 static struct resource mmc1_resources[] = {
305 [0] = {
306 .start = AT91CAP9_BASE_MCI1,
307 .end = AT91CAP9_BASE_MCI1 + SZ_16K - 1,
308 .flags = IORESOURCE_MEM,
309 },
310 [1] = {
311 .start = AT91CAP9_ID_MCI1,
312 .end = AT91CAP9_ID_MCI1,
313 .flags = IORESOURCE_IRQ,
314 },
315 };
316
317 static struct platform_device at91cap9_mmc1_device = {
318 .name = "at91_mci",
319 .id = 1,
320 .dev = {
321 .dma_mask = &mmc_dmamask,
322 .coherent_dma_mask = DMA_BIT_MASK(32),
323 .platform_data = &mmc1_data,
324 },
325 .resource = mmc1_resources,
326 .num_resources = ARRAY_SIZE(mmc1_resources),
327 };
328
329 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
330 {
331 if (!data)
332 return;
333
334 /* input/irq */
335 if (gpio_is_valid(data->det_pin)) {
336 at91_set_gpio_input(data->det_pin, 1);
337 at91_set_deglitch(data->det_pin, 1);
338 }
339 if (gpio_is_valid(data->wp_pin))
340 at91_set_gpio_input(data->wp_pin, 1);
341 if (gpio_is_valid(data->vcc_pin))
342 at91_set_gpio_output(data->vcc_pin, 0);
343
344 if (mmc_id == 0) { /* MCI0 */
345 /* CLK */
346 at91_set_A_periph(AT91_PIN_PA2, 0);
347
348 /* CMD */
349 at91_set_A_periph(AT91_PIN_PA1, 1);
350
351 /* DAT0, maybe DAT1..DAT3 */
352 at91_set_A_periph(AT91_PIN_PA0, 1);
353 if (data->wire4) {
354 at91_set_A_periph(AT91_PIN_PA3, 1);
355 at91_set_A_periph(AT91_PIN_PA4, 1);
356 at91_set_A_periph(AT91_PIN_PA5, 1);
357 }
358
359 mmc0_data = *data;
360 platform_device_register(&at91cap9_mmc0_device);
361 } else { /* MCI1 */
362 /* CLK */
363 at91_set_A_periph(AT91_PIN_PA16, 0);
364
365 /* CMD */
366 at91_set_A_periph(AT91_PIN_PA17, 1);
367
368 /* DAT0, maybe DAT1..DAT3 */
369 at91_set_A_periph(AT91_PIN_PA18, 1);
370 if (data->wire4) {
371 at91_set_A_periph(AT91_PIN_PA19, 1);
372 at91_set_A_periph(AT91_PIN_PA20, 1);
373 at91_set_A_periph(AT91_PIN_PA21, 1);
374 }
375
376 mmc1_data = *data;
377 platform_device_register(&at91cap9_mmc1_device);
378 }
379 }
380 #else
381 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
382 #endif
383
384
385 /* --------------------------------------------------------------------
386 * NAND / SmartMedia
387 * -------------------------------------------------------------------- */
388
389 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
390 static struct atmel_nand_data nand_data;
391
392 #define NAND_BASE AT91_CHIPSELECT_3
393
394 static struct resource nand_resources[] = {
395 [0] = {
396 .start = NAND_BASE,
397 .end = NAND_BASE + SZ_256M - 1,
398 .flags = IORESOURCE_MEM,
399 },
400 [1] = {
401 .start = AT91CAP9_BASE_ECC,
402 .end = AT91CAP9_BASE_ECC + SZ_512 - 1,
403 .flags = IORESOURCE_MEM,
404 }
405 };
406
407 static struct platform_device at91cap9_nand_device = {
408 .name = "atmel_nand",
409 .id = -1,
410 .dev = {
411 .platform_data = &nand_data,
412 },
413 .resource = nand_resources,
414 .num_resources = ARRAY_SIZE(nand_resources),
415 };
416
417 void __init at91_add_device_nand(struct atmel_nand_data *data)
418 {
419 unsigned long csa;
420
421 if (!data)
422 return;
423
424 csa = at91_sys_read(AT91_MATRIX_EBICSA);
425 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
426
427 /* enable pin */
428 if (gpio_is_valid(data->enable_pin))
429 at91_set_gpio_output(data->enable_pin, 1);
430
431 /* ready/busy pin */
432 if (gpio_is_valid(data->rdy_pin))
433 at91_set_gpio_input(data->rdy_pin, 1);
434
435 /* card detect pin */
436 if (gpio_is_valid(data->det_pin))
437 at91_set_gpio_input(data->det_pin, 1);
438
439 nand_data = *data;
440 platform_device_register(&at91cap9_nand_device);
441 }
442 #else
443 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
444 #endif
445
446
447 /* --------------------------------------------------------------------
448 * TWI (i2c)
449 * -------------------------------------------------------------------- */
450
451 /*
452 * Prefer the GPIO code since the TWI controller isn't robust
453 * (gets overruns and underruns under load) and can only issue
454 * repeated STARTs in one scenario (the driver doesn't yet handle them).
455 */
456 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
457
458 static struct i2c_gpio_platform_data pdata = {
459 .sda_pin = AT91_PIN_PB4,
460 .sda_is_open_drain = 1,
461 .scl_pin = AT91_PIN_PB5,
462 .scl_is_open_drain = 1,
463 .udelay = 2, /* ~100 kHz */
464 };
465
466 static struct platform_device at91cap9_twi_device = {
467 .name = "i2c-gpio",
468 .id = -1,
469 .dev.platform_data = &pdata,
470 };
471
472 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
473 {
474 at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */
475 at91_set_multi_drive(AT91_PIN_PB4, 1);
476
477 at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
478 at91_set_multi_drive(AT91_PIN_PB5, 1);
479
480 i2c_register_board_info(0, devices, nr_devices);
481 platform_device_register(&at91cap9_twi_device);
482 }
483
484 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
485
486 static struct resource twi_resources[] = {
487 [0] = {
488 .start = AT91CAP9_BASE_TWI,
489 .end = AT91CAP9_BASE_TWI + SZ_16K - 1,
490 .flags = IORESOURCE_MEM,
491 },
492 [1] = {
493 .start = AT91CAP9_ID_TWI,
494 .end = AT91CAP9_ID_TWI,
495 .flags = IORESOURCE_IRQ,
496 },
497 };
498
499 static struct platform_device at91cap9_twi_device = {
500 .name = "at91_i2c",
501 .id = -1,
502 .resource = twi_resources,
503 .num_resources = ARRAY_SIZE(twi_resources),
504 };
505
506 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
507 {
508 /* pins used for TWI interface */
509 at91_set_B_periph(AT91_PIN_PB4, 0); /* TWD */
510 at91_set_multi_drive(AT91_PIN_PB4, 1);
511
512 at91_set_B_periph(AT91_PIN_PB5, 0); /* TWCK */
513 at91_set_multi_drive(AT91_PIN_PB5, 1);
514
515 i2c_register_board_info(0, devices, nr_devices);
516 platform_device_register(&at91cap9_twi_device);
517 }
518 #else
519 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
520 #endif
521
522 /* --------------------------------------------------------------------
523 * SPI
524 * -------------------------------------------------------------------- */
525
526 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
527 static u64 spi_dmamask = DMA_BIT_MASK(32);
528
529 static struct resource spi0_resources[] = {
530 [0] = {
531 .start = AT91CAP9_BASE_SPI0,
532 .end = AT91CAP9_BASE_SPI0 + SZ_16K - 1,
533 .flags = IORESOURCE_MEM,
534 },
535 [1] = {
536 .start = AT91CAP9_ID_SPI0,
537 .end = AT91CAP9_ID_SPI0,
538 .flags = IORESOURCE_IRQ,
539 },
540 };
541
542 static struct platform_device at91cap9_spi0_device = {
543 .name = "atmel_spi",
544 .id = 0,
545 .dev = {
546 .dma_mask = &spi_dmamask,
547 .coherent_dma_mask = DMA_BIT_MASK(32),
548 },
549 .resource = spi0_resources,
550 .num_resources = ARRAY_SIZE(spi0_resources),
551 };
552
553 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PD0, AT91_PIN_PD1 };
554
555 static struct resource spi1_resources[] = {
556 [0] = {
557 .start = AT91CAP9_BASE_SPI1,
558 .end = AT91CAP9_BASE_SPI1 + SZ_16K - 1,
559 .flags = IORESOURCE_MEM,
560 },
561 [1] = {
562 .start = AT91CAP9_ID_SPI1,
563 .end = AT91CAP9_ID_SPI1,
564 .flags = IORESOURCE_IRQ,
565 },
566 };
567
568 static struct platform_device at91cap9_spi1_device = {
569 .name = "atmel_spi",
570 .id = 1,
571 .dev = {
572 .dma_mask = &spi_dmamask,
573 .coherent_dma_mask = DMA_BIT_MASK(32),
574 },
575 .resource = spi1_resources,
576 .num_resources = ARRAY_SIZE(spi1_resources),
577 };
578
579 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
580
581 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
582 {
583 int i;
584 unsigned long cs_pin;
585 short enable_spi0 = 0;
586 short enable_spi1 = 0;
587
588 /* Choose SPI chip-selects */
589 for (i = 0; i < nr_devices; i++) {
590 if (devices[i].controller_data)
591 cs_pin = (unsigned long) devices[i].controller_data;
592 else if (devices[i].bus_num == 0)
593 cs_pin = spi0_standard_cs[devices[i].chip_select];
594 else
595 cs_pin = spi1_standard_cs[devices[i].chip_select];
596
597 if (devices[i].bus_num == 0)
598 enable_spi0 = 1;
599 else
600 enable_spi1 = 1;
601
602 /* enable chip-select pin */
603 at91_set_gpio_output(cs_pin, 1);
604
605 /* pass chip-select pin to driver */
606 devices[i].controller_data = (void *) cs_pin;
607 }
608
609 spi_register_board_info(devices, nr_devices);
610
611 /* Configure SPI bus(es) */
612 if (enable_spi0) {
613 at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
614 at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
615 at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
616
617 platform_device_register(&at91cap9_spi0_device);
618 }
619 if (enable_spi1) {
620 at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
621 at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
622 at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
623
624 platform_device_register(&at91cap9_spi1_device);
625 }
626 }
627 #else
628 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
629 #endif
630
631
632 /* --------------------------------------------------------------------
633 * Timer/Counter block
634 * -------------------------------------------------------------------- */
635
636 #ifdef CONFIG_ATMEL_TCLIB
637
638 static struct resource tcb_resources[] = {
639 [0] = {
640 .start = AT91CAP9_BASE_TCB0,
641 .end = AT91CAP9_BASE_TCB0 + SZ_16K - 1,
642 .flags = IORESOURCE_MEM,
643 },
644 [1] = {
645 .start = AT91CAP9_ID_TCB,
646 .end = AT91CAP9_ID_TCB,
647 .flags = IORESOURCE_IRQ,
648 },
649 };
650
651 static struct platform_device at91cap9_tcb_device = {
652 .name = "atmel_tcb",
653 .id = 0,
654 .resource = tcb_resources,
655 .num_resources = ARRAY_SIZE(tcb_resources),
656 };
657
658 static void __init at91_add_device_tc(void)
659 {
660 platform_device_register(&at91cap9_tcb_device);
661 }
662 #else
663 static void __init at91_add_device_tc(void) { }
664 #endif
665
666
667 /* --------------------------------------------------------------------
668 * RTT
669 * -------------------------------------------------------------------- */
670
671 static struct resource rtt_resources[] = {
672 {
673 .start = AT91CAP9_BASE_RTT,
674 .end = AT91CAP9_BASE_RTT + SZ_16 - 1,
675 .flags = IORESOURCE_MEM,
676 }
677 };
678
679 static struct platform_device at91cap9_rtt_device = {
680 .name = "at91_rtt",
681 .id = 0,
682 .resource = rtt_resources,
683 .num_resources = ARRAY_SIZE(rtt_resources),
684 };
685
686 static void __init at91_add_device_rtt(void)
687 {
688 platform_device_register(&at91cap9_rtt_device);
689 }
690
691
692 /* --------------------------------------------------------------------
693 * Watchdog
694 * -------------------------------------------------------------------- */
695
696 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
697 static struct resource wdt_resources[] = {
698 {
699 .start = AT91CAP9_BASE_WDT,
700 .end = AT91CAP9_BASE_WDT + SZ_16 - 1,
701 .flags = IORESOURCE_MEM,
702 }
703 };
704
705 static struct platform_device at91cap9_wdt_device = {
706 .name = "at91_wdt",
707 .id = -1,
708 .resource = wdt_resources,
709 .num_resources = ARRAY_SIZE(wdt_resources),
710 };
711
712 static void __init at91_add_device_watchdog(void)
713 {
714 platform_device_register(&at91cap9_wdt_device);
715 }
716 #else
717 static void __init at91_add_device_watchdog(void) {}
718 #endif
719
720
721 /* --------------------------------------------------------------------
722 * PWM
723 * --------------------------------------------------------------------*/
724
725 #if defined(CONFIG_ATMEL_PWM)
726 static u32 pwm_mask;
727
728 static struct resource pwm_resources[] = {
729 [0] = {
730 .start = AT91CAP9_BASE_PWMC,
731 .end = AT91CAP9_BASE_PWMC + SZ_16K - 1,
732 .flags = IORESOURCE_MEM,
733 },
734 [1] = {
735 .start = AT91CAP9_ID_PWMC,
736 .end = AT91CAP9_ID_PWMC,
737 .flags = IORESOURCE_IRQ,
738 },
739 };
740
741 static struct platform_device at91cap9_pwm0_device = {
742 .name = "atmel_pwm",
743 .id = -1,
744 .dev = {
745 .platform_data = &pwm_mask,
746 },
747 .resource = pwm_resources,
748 .num_resources = ARRAY_SIZE(pwm_resources),
749 };
750
751 void __init at91_add_device_pwm(u32 mask)
752 {
753 if (mask & (1 << AT91_PWM0))
754 at91_set_A_periph(AT91_PIN_PB19, 1); /* enable PWM0 */
755
756 if (mask & (1 << AT91_PWM1))
757 at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM1 */
758
759 if (mask & (1 << AT91_PWM2))
760 at91_set_B_periph(AT91_PIN_PC29, 1); /* enable PWM2 */
761
762 if (mask & (1 << AT91_PWM3))
763 at91_set_B_periph(AT91_PIN_PA11, 1); /* enable PWM3 */
764
765 pwm_mask = mask;
766
767 platform_device_register(&at91cap9_pwm0_device);
768 }
769 #else
770 void __init at91_add_device_pwm(u32 mask) {}
771 #endif
772
773
774
775 /* --------------------------------------------------------------------
776 * AC97
777 * -------------------------------------------------------------------- */
778
779 #if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
780 static u64 ac97_dmamask = DMA_BIT_MASK(32);
781 static struct ac97c_platform_data ac97_data;
782
783 static struct resource ac97_resources[] = {
784 [0] = {
785 .start = AT91CAP9_BASE_AC97C,
786 .end = AT91CAP9_BASE_AC97C + SZ_16K - 1,
787 .flags = IORESOURCE_MEM,
788 },
789 [1] = {
790 .start = AT91CAP9_ID_AC97C,
791 .end = AT91CAP9_ID_AC97C,
792 .flags = IORESOURCE_IRQ,
793 },
794 };
795
796 static struct platform_device at91cap9_ac97_device = {
797 .name = "atmel_ac97c",
798 .id = 1,
799 .dev = {
800 .dma_mask = &ac97_dmamask,
801 .coherent_dma_mask = DMA_BIT_MASK(32),
802 .platform_data = &ac97_data,
803 },
804 .resource = ac97_resources,
805 .num_resources = ARRAY_SIZE(ac97_resources),
806 };
807
808 void __init at91_add_device_ac97(struct ac97c_platform_data *data)
809 {
810 if (!data)
811 return;
812
813 at91_set_A_periph(AT91_PIN_PA6, 0); /* AC97FS */
814 at91_set_A_periph(AT91_PIN_PA7, 0); /* AC97CK */
815 at91_set_A_periph(AT91_PIN_PA8, 0); /* AC97TX */
816 at91_set_A_periph(AT91_PIN_PA9, 0); /* AC97RX */
817
818 /* reset */
819 if (gpio_is_valid(data->reset_pin))
820 at91_set_gpio_output(data->reset_pin, 0);
821
822 ac97_data = *data;
823 platform_device_register(&at91cap9_ac97_device);
824 }
825 #else
826 void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
827 #endif
828
829
830 /* --------------------------------------------------------------------
831 * LCD Controller
832 * -------------------------------------------------------------------- */
833
834 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
835 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
836 static struct atmel_lcdfb_info lcdc_data;
837
838 static struct resource lcdc_resources[] = {
839 [0] = {
840 .start = AT91CAP9_LCDC_BASE,
841 .end = AT91CAP9_LCDC_BASE + SZ_4K - 1,
842 .flags = IORESOURCE_MEM,
843 },
844 [1] = {
845 .start = AT91CAP9_ID_LCDC,
846 .end = AT91CAP9_ID_LCDC,
847 .flags = IORESOURCE_IRQ,
848 },
849 };
850
851 static struct platform_device at91_lcdc_device = {
852 .name = "atmel_lcdfb",
853 .id = 0,
854 .dev = {
855 .dma_mask = &lcdc_dmamask,
856 .coherent_dma_mask = DMA_BIT_MASK(32),
857 .platform_data = &lcdc_data,
858 },
859 .resource = lcdc_resources,
860 .num_resources = ARRAY_SIZE(lcdc_resources),
861 };
862
863 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
864 {
865 if (!data)
866 return;
867
868 if (cpu_is_at91cap9_revB())
869 irq_set_irq_type(AT91CAP9_ID_LCDC, IRQ_TYPE_LEVEL_HIGH);
870
871 at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
872 at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
873 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
874 at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
875 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
876 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
877 at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
878 at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
879 at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
880 at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
881 at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
882 at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
883 at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
884 at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */
885 at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
886 at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
887 at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
888 at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
889 at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
890 at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */
891 at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
892 at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
893
894 lcdc_data = *data;
895 platform_device_register(&at91_lcdc_device);
896 }
897 #else
898 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
899 #endif
900
901
902 /* --------------------------------------------------------------------
903 * SSC -- Synchronous Serial Controller
904 * -------------------------------------------------------------------- */
905
906 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
907 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
908
909 static struct resource ssc0_resources[] = {
910 [0] = {
911 .start = AT91CAP9_BASE_SSC0,
912 .end = AT91CAP9_BASE_SSC0 + SZ_16K - 1,
913 .flags = IORESOURCE_MEM,
914 },
915 [1] = {
916 .start = AT91CAP9_ID_SSC0,
917 .end = AT91CAP9_ID_SSC0,
918 .flags = IORESOURCE_IRQ,
919 },
920 };
921
922 static struct platform_device at91cap9_ssc0_device = {
923 .name = "ssc",
924 .id = 0,
925 .dev = {
926 .dma_mask = &ssc0_dmamask,
927 .coherent_dma_mask = DMA_BIT_MASK(32),
928 },
929 .resource = ssc0_resources,
930 .num_resources = ARRAY_SIZE(ssc0_resources),
931 };
932
933 static inline void configure_ssc0_pins(unsigned pins)
934 {
935 if (pins & ATMEL_SSC_TF)
936 at91_set_A_periph(AT91_PIN_PB0, 1);
937 if (pins & ATMEL_SSC_TK)
938 at91_set_A_periph(AT91_PIN_PB1, 1);
939 if (pins & ATMEL_SSC_TD)
940 at91_set_A_periph(AT91_PIN_PB2, 1);
941 if (pins & ATMEL_SSC_RD)
942 at91_set_A_periph(AT91_PIN_PB3, 1);
943 if (pins & ATMEL_SSC_RK)
944 at91_set_A_periph(AT91_PIN_PB4, 1);
945 if (pins & ATMEL_SSC_RF)
946 at91_set_A_periph(AT91_PIN_PB5, 1);
947 }
948
949 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
950
951 static struct resource ssc1_resources[] = {
952 [0] = {
953 .start = AT91CAP9_BASE_SSC1,
954 .end = AT91CAP9_BASE_SSC1 + SZ_16K - 1,
955 .flags = IORESOURCE_MEM,
956 },
957 [1] = {
958 .start = AT91CAP9_ID_SSC1,
959 .end = AT91CAP9_ID_SSC1,
960 .flags = IORESOURCE_IRQ,
961 },
962 };
963
964 static struct platform_device at91cap9_ssc1_device = {
965 .name = "ssc",
966 .id = 1,
967 .dev = {
968 .dma_mask = &ssc1_dmamask,
969 .coherent_dma_mask = DMA_BIT_MASK(32),
970 },
971 .resource = ssc1_resources,
972 .num_resources = ARRAY_SIZE(ssc1_resources),
973 };
974
975 static inline void configure_ssc1_pins(unsigned pins)
976 {
977 if (pins & ATMEL_SSC_TF)
978 at91_set_A_periph(AT91_PIN_PB6, 1);
979 if (pins & ATMEL_SSC_TK)
980 at91_set_A_periph(AT91_PIN_PB7, 1);
981 if (pins & ATMEL_SSC_TD)
982 at91_set_A_periph(AT91_PIN_PB8, 1);
983 if (pins & ATMEL_SSC_RD)
984 at91_set_A_periph(AT91_PIN_PB9, 1);
985 if (pins & ATMEL_SSC_RK)
986 at91_set_A_periph(AT91_PIN_PB10, 1);
987 if (pins & ATMEL_SSC_RF)
988 at91_set_A_periph(AT91_PIN_PB11, 1);
989 }
990
991 /*
992 * SSC controllers are accessed through library code, instead of any
993 * kind of all-singing/all-dancing driver. For example one could be
994 * used by a particular I2S audio codec's driver, while another one
995 * on the same system might be used by a custom data capture driver.
996 */
997 void __init at91_add_device_ssc(unsigned id, unsigned pins)
998 {
999 struct platform_device *pdev;
1000
1001 /*
1002 * NOTE: caller is responsible for passing information matching
1003 * "pins" to whatever will be using each particular controller.
1004 */
1005 switch (id) {
1006 case AT91CAP9_ID_SSC0:
1007 pdev = &at91cap9_ssc0_device;
1008 configure_ssc0_pins(pins);
1009 break;
1010 case AT91CAP9_ID_SSC1:
1011 pdev = &at91cap9_ssc1_device;
1012 configure_ssc1_pins(pins);
1013 break;
1014 default:
1015 return;
1016 }
1017
1018 platform_device_register(pdev);
1019 }
1020
1021 #else
1022 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
1023 #endif
1024
1025
1026 /* --------------------------------------------------------------------
1027 * UART
1028 * -------------------------------------------------------------------- */
1029
1030 #if defined(CONFIG_SERIAL_ATMEL)
1031 static struct resource dbgu_resources[] = {
1032 [0] = {
1033 .start = AT91CAP9_BASE_DBGU,
1034 .end = AT91CAP9_BASE_DBGU + SZ_512 - 1,
1035 .flags = IORESOURCE_MEM,
1036 },
1037 [1] = {
1038 .start = AT91_ID_SYS,
1039 .end = AT91_ID_SYS,
1040 .flags = IORESOURCE_IRQ,
1041 },
1042 };
1043
1044 static struct atmel_uart_data dbgu_data = {
1045 .use_dma_tx = 0,
1046 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
1047 };
1048
1049 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
1050
1051 static struct platform_device at91cap9_dbgu_device = {
1052 .name = "atmel_usart",
1053 .id = 0,
1054 .dev = {
1055 .dma_mask = &dbgu_dmamask,
1056 .coherent_dma_mask = DMA_BIT_MASK(32),
1057 .platform_data = &dbgu_data,
1058 },
1059 .resource = dbgu_resources,
1060 .num_resources = ARRAY_SIZE(dbgu_resources),
1061 };
1062
1063 static inline void configure_dbgu_pins(void)
1064 {
1065 at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
1066 at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
1067 }
1068
1069 static struct resource uart0_resources[] = {
1070 [0] = {
1071 .start = AT91CAP9_BASE_US0,
1072 .end = AT91CAP9_BASE_US0 + SZ_16K - 1,
1073 .flags = IORESOURCE_MEM,
1074 },
1075 [1] = {
1076 .start = AT91CAP9_ID_US0,
1077 .end = AT91CAP9_ID_US0,
1078 .flags = IORESOURCE_IRQ,
1079 },
1080 };
1081
1082 static struct atmel_uart_data uart0_data = {
1083 .use_dma_tx = 1,
1084 .use_dma_rx = 1,
1085 };
1086
1087 static u64 uart0_dmamask = DMA_BIT_MASK(32);
1088
1089 static struct platform_device at91cap9_uart0_device = {
1090 .name = "atmel_usart",
1091 .id = 1,
1092 .dev = {
1093 .dma_mask = &uart0_dmamask,
1094 .coherent_dma_mask = DMA_BIT_MASK(32),
1095 .platform_data = &uart0_data,
1096 },
1097 .resource = uart0_resources,
1098 .num_resources = ARRAY_SIZE(uart0_resources),
1099 };
1100
1101 static inline void configure_usart0_pins(unsigned pins)
1102 {
1103 at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
1104 at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
1105
1106 if (pins & ATMEL_UART_RTS)
1107 at91_set_A_periph(AT91_PIN_PA24, 0); /* RTS0 */
1108 if (pins & ATMEL_UART_CTS)
1109 at91_set_A_periph(AT91_PIN_PA25, 0); /* CTS0 */
1110 }
1111
1112 static struct resource uart1_resources[] = {
1113 [0] = {
1114 .start = AT91CAP9_BASE_US1,
1115 .end = AT91CAP9_BASE_US1 + SZ_16K - 1,
1116 .flags = IORESOURCE_MEM,
1117 },
1118 [1] = {
1119 .start = AT91CAP9_ID_US1,
1120 .end = AT91CAP9_ID_US1,
1121 .flags = IORESOURCE_IRQ,
1122 },
1123 };
1124
1125 static struct atmel_uart_data uart1_data = {
1126 .use_dma_tx = 1,
1127 .use_dma_rx = 1,
1128 };
1129
1130 static u64 uart1_dmamask = DMA_BIT_MASK(32);
1131
1132 static struct platform_device at91cap9_uart1_device = {
1133 .name = "atmel_usart",
1134 .id = 2,
1135 .dev = {
1136 .dma_mask = &uart1_dmamask,
1137 .coherent_dma_mask = DMA_BIT_MASK(32),
1138 .platform_data = &uart1_data,
1139 },
1140 .resource = uart1_resources,
1141 .num_resources = ARRAY_SIZE(uart1_resources),
1142 };
1143
1144 static inline void configure_usart1_pins(unsigned pins)
1145 {
1146 at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
1147 at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
1148
1149 if (pins & ATMEL_UART_RTS)
1150 at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
1151 if (pins & ATMEL_UART_CTS)
1152 at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
1153 }
1154
1155 static struct resource uart2_resources[] = {
1156 [0] = {
1157 .start = AT91CAP9_BASE_US2,
1158 .end = AT91CAP9_BASE_US2 + SZ_16K - 1,
1159 .flags = IORESOURCE_MEM,
1160 },
1161 [1] = {
1162 .start = AT91CAP9_ID_US2,
1163 .end = AT91CAP9_ID_US2,
1164 .flags = IORESOURCE_IRQ,
1165 },
1166 };
1167
1168 static struct atmel_uart_data uart2_data = {
1169 .use_dma_tx = 1,
1170 .use_dma_rx = 1,
1171 };
1172
1173 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1174
1175 static struct platform_device at91cap9_uart2_device = {
1176 .name = "atmel_usart",
1177 .id = 3,
1178 .dev = {
1179 .dma_mask = &uart2_dmamask,
1180 .coherent_dma_mask = DMA_BIT_MASK(32),
1181 .platform_data = &uart2_data,
1182 },
1183 .resource = uart2_resources,
1184 .num_resources = ARRAY_SIZE(uart2_resources),
1185 };
1186
1187 static inline void configure_usart2_pins(unsigned pins)
1188 {
1189 at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
1190 at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
1191
1192 if (pins & ATMEL_UART_RTS)
1193 at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
1194 if (pins & ATMEL_UART_CTS)
1195 at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
1196 }
1197
1198 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1199 struct platform_device *atmel_default_console_device; /* the serial console device */
1200
1201 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1202 {
1203 struct platform_device *pdev;
1204 struct atmel_uart_data *pdata;
1205
1206 switch (id) {
1207 case 0: /* DBGU */
1208 pdev = &at91cap9_dbgu_device;
1209 configure_dbgu_pins();
1210 break;
1211 case AT91CAP9_ID_US0:
1212 pdev = &at91cap9_uart0_device;
1213 configure_usart0_pins(pins);
1214 break;
1215 case AT91CAP9_ID_US1:
1216 pdev = &at91cap9_uart1_device;
1217 configure_usart1_pins(pins);
1218 break;
1219 case AT91CAP9_ID_US2:
1220 pdev = &at91cap9_uart2_device;
1221 configure_usart2_pins(pins);
1222 break;
1223 default:
1224 return;
1225 }
1226 pdata = pdev->dev.platform_data;
1227 pdata->num = portnr; /* update to mapped ID */
1228
1229 if (portnr < ATMEL_MAX_UART)
1230 at91_uarts[portnr] = pdev;
1231 }
1232
1233 void __init at91_set_serial_console(unsigned portnr)
1234 {
1235 if (portnr < ATMEL_MAX_UART) {
1236 atmel_default_console_device = at91_uarts[portnr];
1237 at91cap9_set_console_clock(at91_uarts[portnr]->id);
1238 }
1239 }
1240
1241 void __init at91_add_device_serial(void)
1242 {
1243 int i;
1244
1245 for (i = 0; i < ATMEL_MAX_UART; i++) {
1246 if (at91_uarts[i])
1247 platform_device_register(at91_uarts[i]);
1248 }
1249
1250 if (!atmel_default_console_device)
1251 printk(KERN_INFO "AT91: No default serial console defined.\n");
1252 }
1253 #else
1254 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1255 void __init at91_set_serial_console(unsigned portnr) {}
1256 void __init at91_add_device_serial(void) {}
1257 #endif
1258
1259
1260 /* -------------------------------------------------------------------- */
1261 /*
1262 * These devices are always present and don't need any board-specific
1263 * setup.
1264 */
1265 static int __init at91_add_standard_devices(void)
1266 {
1267 at91_add_device_rtt();
1268 at91_add_device_watchdog();
1269 at91_add_device_tc();
1270 return 0;
1271 }
1272
1273 arch_initcall(at91_add_standard_devices);