?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
[linux/fpc-iii.git] / arch / arm / mach-at91 / at91sam9rl_devices.c
blobaacb19dc9225a7c90554ee6e03e7610d90df57cb
1 /*
2 * Copyright (C) 2007 Atmel Corporation
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file COPYING in the main directory of this archive for
6 * more details.
7 */
8
9 #include <asm/mach/arch.h>
10 #include <asm/mach/map.h>
11
12 #include <linux/dma-mapping.h>
13 #include <linux/platform_device.h>
14 #include <linux/i2c-gpio.h>
15
16 #include <linux/fb.h>
17 #include <video/atmel_lcdc.h>
18
19 #include <mach/board.h>
20 #include <mach/gpio.h>
21 #include <mach/at91sam9rl.h>
22 #include <mach/at91sam9rl_matrix.h>
23 #include <mach/at91sam9_smc.h>
24 #include <mach/at_hdmac.h>
25
26 #include "generic.h"
27
28
29 /* --------------------------------------------------------------------
30 * HDMAC - AHB DMA Controller
31 * -------------------------------------------------------------------- */
32
33 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
34 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
35
36 static struct at_dma_platform_data atdma_pdata = {
37 .nr_channels = 2,
38 };
39
40 static struct resource hdmac_resources[] = {
41 [0] = {
42 .start = AT91_BASE_SYS + AT91_DMA,
43 .end = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
44 .flags = IORESOURCE_MEM,
45 },
46 [2] = {
47 .start = AT91SAM9RL_ID_DMA,
48 .end = AT91SAM9RL_ID_DMA,
49 .flags = IORESOURCE_IRQ,
50 },
51 };
52
53 static struct platform_device at_hdmac_device = {
54 .name = "at_hdmac",
55 .id = -1,
56 .dev = {
57 .dma_mask = &hdmac_dmamask,
58 .coherent_dma_mask = DMA_BIT_MASK(32),
59 .platform_data = &atdma_pdata,
60 },
61 .resource = hdmac_resources,
62 .num_resources = ARRAY_SIZE(hdmac_resources),
63 };
64
65 void __init at91_add_device_hdmac(void)
66 {
67 dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
68 platform_device_register(&at_hdmac_device);
69 }
70 #else
71 void __init at91_add_device_hdmac(void) {}
72 #endif
73
74 /* --------------------------------------------------------------------
75 * USB HS Device (Gadget)
76 * -------------------------------------------------------------------- */
77
78 #if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
79
80 static struct resource usba_udc_resources[] = {
81 [0] = {
82 .start = AT91SAM9RL_UDPHS_FIFO,
83 .end = AT91SAM9RL_UDPHS_FIFO + SZ_512K - 1,
84 .flags = IORESOURCE_MEM,
85 },
86 [1] = {
87 .start = AT91SAM9RL_BASE_UDPHS,
88 .end = AT91SAM9RL_BASE_UDPHS + SZ_1K - 1,
89 .flags = IORESOURCE_MEM,
90 },
91 [2] = {
92 .start = AT91SAM9RL_ID_UDPHS,
93 .end = AT91SAM9RL_ID_UDPHS,
94 .flags = IORESOURCE_IRQ,
95 },
96 };
97
98 #define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
99 [idx] = { \
100 .name = nam, \
101 .index = idx, \
102 .fifo_size = maxpkt, \
103 .nr_banks = maxbk, \
104 .can_dma = dma, \
105 .can_isoc = isoc, \
106 }
107
108 static struct usba_ep_data usba_udc_ep[] __initdata = {
109 EP("ep0", 0, 64, 1, 0, 0),
110 EP("ep1", 1, 1024, 2, 1, 1),
111 EP("ep2", 2, 1024, 2, 1, 1),
112 EP("ep3", 3, 1024, 3, 1, 0),
113 EP("ep4", 4, 1024, 3, 1, 0),
114 EP("ep5", 5, 1024, 3, 1, 1),
115 EP("ep6", 6, 1024, 3, 1, 1),
116 };
117
118 #undef EP
119
120 /*
121 * pdata doesn't have room for any endpoints, so we need to
122 * append room for the ones we need right after it.
123 */
124 static struct {
125 struct usba_platform_data pdata;
126 struct usba_ep_data ep[7];
127 } usba_udc_data;
128
129 static struct platform_device at91_usba_udc_device = {
130 .name = "atmel_usba_udc",
131 .id = -1,
132 .dev = {
133 .platform_data = &usba_udc_data.pdata,
134 },
135 .resource = usba_udc_resources,
136 .num_resources = ARRAY_SIZE(usba_udc_resources),
137 };
138
139 void __init at91_add_device_usba(struct usba_platform_data *data)
140 {
141 /*
142 * Invalid pins are 0 on AT91, but the usba driver is shared
143 * with AVR32, which use negative values instead. Once/if
144 * gpio_is_valid() is ported to AT91, revisit this code.
145 */
146 usba_udc_data.pdata.vbus_pin = -EINVAL;
147 usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
148 memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
149
150 if (data && data->vbus_pin > 0) {
151 at91_set_gpio_input(data->vbus_pin, 0);
152 at91_set_deglitch(data->vbus_pin, 1);
153 usba_udc_data.pdata.vbus_pin = data->vbus_pin;
154 }
155
156 /* Pullup pin is handled internally by USB device peripheral */
157
158 platform_device_register(&at91_usba_udc_device);
159 }
160 #else
161 void __init at91_add_device_usba(struct usba_platform_data *data) {}
162 #endif
163
164
165 /* --------------------------------------------------------------------
166 * MMC / SD
167 * -------------------------------------------------------------------- */
168
169 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
170 static u64 mmc_dmamask = DMA_BIT_MASK(32);
171 static struct at91_mmc_data mmc_data;
172
173 static struct resource mmc_resources[] = {
174 [0] = {
175 .start = AT91SAM9RL_BASE_MCI,
176 .end = AT91SAM9RL_BASE_MCI + SZ_16K - 1,
177 .flags = IORESOURCE_MEM,
178 },
179 [1] = {
180 .start = AT91SAM9RL_ID_MCI,
181 .end = AT91SAM9RL_ID_MCI,
182 .flags = IORESOURCE_IRQ,
183 },
184 };
185
186 static struct platform_device at91sam9rl_mmc_device = {
187 .name = "at91_mci",
188 .id = -1,
189 .dev = {
190 .dma_mask = &mmc_dmamask,
191 .coherent_dma_mask = DMA_BIT_MASK(32),
192 .platform_data = &mmc_data,
193 },
194 .resource = mmc_resources,
195 .num_resources = ARRAY_SIZE(mmc_resources),
196 };
197
198 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
199 {
200 if (!data)
201 return;
202
203 /* input/irq */
204 if (data->det_pin) {
205 at91_set_gpio_input(data->det_pin, 1);
206 at91_set_deglitch(data->det_pin, 1);
207 }
208 if (data->wp_pin)
209 at91_set_gpio_input(data->wp_pin, 1);
210 if (data->vcc_pin)
211 at91_set_gpio_output(data->vcc_pin, 0);
212
213 /* CLK */
214 at91_set_A_periph(AT91_PIN_PA2, 0);
215
216 /* CMD */
217 at91_set_A_periph(AT91_PIN_PA1, 1);
218
219 /* DAT0, maybe DAT1..DAT3 */
220 at91_set_A_periph(AT91_PIN_PA0, 1);
221 if (data->wire4) {
222 at91_set_A_periph(AT91_PIN_PA3, 1);
223 at91_set_A_periph(AT91_PIN_PA4, 1);
224 at91_set_A_periph(AT91_PIN_PA5, 1);
225 }
226
227 mmc_data = *data;
228 platform_device_register(&at91sam9rl_mmc_device);
229 }
230 #else
231 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
232 #endif
233
234
235 /* --------------------------------------------------------------------
236 * NAND / SmartMedia
237 * -------------------------------------------------------------------- */
238
239 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
240 static struct atmel_nand_data nand_data;
241
242 #define NAND_BASE AT91_CHIPSELECT_3
243
244 static struct resource nand_resources[] = {
245 [0] = {
246 .start = NAND_BASE,
247 .end = NAND_BASE + SZ_256M - 1,
248 .flags = IORESOURCE_MEM,
249 },
250 [1] = {
251 .start = AT91_BASE_SYS + AT91_ECC,
252 .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
253 .flags = IORESOURCE_MEM,
254 }
255 };
256
257 static struct platform_device atmel_nand_device = {
258 .name = "atmel_nand",
259 .id = -1,
260 .dev = {
261 .platform_data = &nand_data,
262 },
263 .resource = nand_resources,
264 .num_resources = ARRAY_SIZE(nand_resources),
265 };
266
267 void __init at91_add_device_nand(struct atmel_nand_data *data)
268 {
269 unsigned long csa;
270
271 if (!data)
272 return;
273
274 csa = at91_sys_read(AT91_MATRIX_EBICSA);
275 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
276
277 /* enable pin */
278 if (data->enable_pin)
279 at91_set_gpio_output(data->enable_pin, 1);
280
281 /* ready/busy pin */
282 if (data->rdy_pin)
283 at91_set_gpio_input(data->rdy_pin, 1);
284
285 /* card detect pin */
286 if (data->det_pin)
287 at91_set_gpio_input(data->det_pin, 1);
288
289 at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */
290 at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */
291
292 nand_data = *data;
293 platform_device_register(&atmel_nand_device);
294 }
295
296 #else
297 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
298 #endif
299
300
301 /* --------------------------------------------------------------------
302 * TWI (i2c)
303 * -------------------------------------------------------------------- */
304
305 /*
306 * Prefer the GPIO code since the TWI controller isn't robust
307 * (gets overruns and underruns under load) and can only issue
308 * repeated STARTs in one scenario (the driver doesn't yet handle them).
309 */
310 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
311
312 static struct i2c_gpio_platform_data pdata = {
313 .sda_pin = AT91_PIN_PA23,
314 .sda_is_open_drain = 1,
315 .scl_pin = AT91_PIN_PA24,
316 .scl_is_open_drain = 1,
317 .udelay = 2, /* ~100 kHz */
318 };
319
320 static struct platform_device at91sam9rl_twi_device = {
321 .name = "i2c-gpio",
322 .id = -1,
323 .dev.platform_data = &pdata,
324 };
325
326 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
327 {
328 at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
329 at91_set_multi_drive(AT91_PIN_PA23, 1);
330
331 at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
332 at91_set_multi_drive(AT91_PIN_PA24, 1);
333
334 i2c_register_board_info(0, devices, nr_devices);
335 platform_device_register(&at91sam9rl_twi_device);
336 }
337
338 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
339
340 static struct resource twi_resources[] = {
341 [0] = {
342 .start = AT91SAM9RL_BASE_TWI0,
343 .end = AT91SAM9RL_BASE_TWI0 + SZ_16K - 1,
344 .flags = IORESOURCE_MEM,
345 },
346 [1] = {
347 .start = AT91SAM9RL_ID_TWI0,
348 .end = AT91SAM9RL_ID_TWI0,
349 .flags = IORESOURCE_IRQ,
350 },
351 };
352
353 static struct platform_device at91sam9rl_twi_device = {
354 .name = "at91_i2c",
355 .id = -1,
356 .resource = twi_resources,
357 .num_resources = ARRAY_SIZE(twi_resources),
358 };
359
360 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
361 {
362 /* pins used for TWI interface */
363 at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
364 at91_set_multi_drive(AT91_PIN_PA23, 1);
365
366 at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
367 at91_set_multi_drive(AT91_PIN_PA24, 1);
368
369 i2c_register_board_info(0, devices, nr_devices);
370 platform_device_register(&at91sam9rl_twi_device);
371 }
372 #else
373 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
374 #endif
375
376
377 /* --------------------------------------------------------------------
378 * SPI
379 * -------------------------------------------------------------------- */
380
381 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
382 static u64 spi_dmamask = DMA_BIT_MASK(32);
383
384 static struct resource spi_resources[] = {
385 [0] = {
386 .start = AT91SAM9RL_BASE_SPI,
387 .end = AT91SAM9RL_BASE_SPI + SZ_16K - 1,
388 .flags = IORESOURCE_MEM,
389 },
390 [1] = {
391 .start = AT91SAM9RL_ID_SPI,
392 .end = AT91SAM9RL_ID_SPI,
393 .flags = IORESOURCE_IRQ,
394 },
395 };
396
397 static struct platform_device at91sam9rl_spi_device = {
398 .name = "atmel_spi",
399 .id = 0,
400 .dev = {
401 .dma_mask = &spi_dmamask,
402 .coherent_dma_mask = DMA_BIT_MASK(32),
403 },
404 .resource = spi_resources,
405 .num_resources = ARRAY_SIZE(spi_resources),
406 };
407
408 static const unsigned spi_standard_cs[4] = { AT91_PIN_PA28, AT91_PIN_PB7, AT91_PIN_PD8, AT91_PIN_PD9 };
409
410
411 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
412 {
413 int i;
414 unsigned long cs_pin;
415
416 at91_set_A_periph(AT91_PIN_PA25, 0); /* MISO */
417 at91_set_A_periph(AT91_PIN_PA26, 0); /* MOSI */
418 at91_set_A_periph(AT91_PIN_PA27, 0); /* SPCK */
419
420 /* Enable SPI chip-selects */
421 for (i = 0; i < nr_devices; i++) {
422 if (devices[i].controller_data)
423 cs_pin = (unsigned long) devices[i].controller_data;
424 else
425 cs_pin = spi_standard_cs[devices[i].chip_select];
426
427 /* enable chip-select pin */
428 at91_set_gpio_output(cs_pin, 1);
429
430 /* pass chip-select pin to driver */
431 devices[i].controller_data = (void *) cs_pin;
432 }
433
434 spi_register_board_info(devices, nr_devices);
435 platform_device_register(&at91sam9rl_spi_device);
436 }
437 #else
438 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
439 #endif
440
441
442 /* --------------------------------------------------------------------
443 * AC97
444 * -------------------------------------------------------------------- */
445
446 #if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
447 static u64 ac97_dmamask = DMA_BIT_MASK(32);
448 static struct ac97c_platform_data ac97_data;
449
450 static struct resource ac97_resources[] = {
451 [0] = {
452 .start = AT91SAM9RL_BASE_AC97C,
453 .end = AT91SAM9RL_BASE_AC97C + SZ_16K - 1,
454 .flags = IORESOURCE_MEM,
455 },
456 [1] = {
457 .start = AT91SAM9RL_ID_AC97C,
458 .end = AT91SAM9RL_ID_AC97C,
459 .flags = IORESOURCE_IRQ,
460 },
461 };
462
463 static struct platform_device at91sam9rl_ac97_device = {
464 .name = "atmel_ac97c",
465 .id = 0,
466 .dev = {
467 .dma_mask = &ac97_dmamask,
468 .coherent_dma_mask = DMA_BIT_MASK(32),
469 .platform_data = &ac97_data,
470 },
471 .resource = ac97_resources,
472 .num_resources = ARRAY_SIZE(ac97_resources),
473 };
474
475 void __init at91_add_device_ac97(struct ac97c_platform_data *data)
476 {
477 if (!data)
478 return;
479
480 at91_set_A_periph(AT91_PIN_PD1, 0); /* AC97FS */
481 at91_set_A_periph(AT91_PIN_PD2, 0); /* AC97CK */
482 at91_set_A_periph(AT91_PIN_PD3, 0); /* AC97TX */
483 at91_set_A_periph(AT91_PIN_PD4, 0); /* AC97RX */
484
485 /* reset */
486 if (data->reset_pin)
487 at91_set_gpio_output(data->reset_pin, 0);
488
489 ac97_data = *data;
490 platform_device_register(&at91sam9rl_ac97_device);
491 }
492 #else
493 void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
494 #endif
495
496
497 /* --------------------------------------------------------------------
498 * LCD Controller
499 * -------------------------------------------------------------------- */
500
501 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
502 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
503 static struct atmel_lcdfb_info lcdc_data;
504
505 static struct resource lcdc_resources[] = {
506 [0] = {
507 .start = AT91SAM9RL_LCDC_BASE,
508 .end = AT91SAM9RL_LCDC_BASE + SZ_4K - 1,
509 .flags = IORESOURCE_MEM,
510 },
511 [1] = {
512 .start = AT91SAM9RL_ID_LCDC,
513 .end = AT91SAM9RL_ID_LCDC,
514 .flags = IORESOURCE_IRQ,
515 },
516 };
517
518 static struct platform_device at91_lcdc_device = {
519 .name = "atmel_lcdfb",
520 .id = 0,
521 .dev = {
522 .dma_mask = &lcdc_dmamask,
523 .coherent_dma_mask = DMA_BIT_MASK(32),
524 .platform_data = &lcdc_data,
525 },
526 .resource = lcdc_resources,
527 .num_resources = ARRAY_SIZE(lcdc_resources),
528 };
529
530 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
531 {
532 if (!data) {
533 return;
534 }
535
536 at91_set_B_periph(AT91_PIN_PC1, 0); /* LCDPWR */
537 at91_set_A_periph(AT91_PIN_PC5, 0); /* LCDHSYNC */
538 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDDOTCK */
539 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDDEN */
540 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDCC */
541 at91_set_B_periph(AT91_PIN_PC9, 0); /* LCDD3 */
542 at91_set_B_periph(AT91_PIN_PC10, 0); /* LCDD4 */
543 at91_set_B_periph(AT91_PIN_PC11, 0); /* LCDD5 */
544 at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD6 */
545 at91_set_B_periph(AT91_PIN_PC13, 0); /* LCDD7 */
546 at91_set_B_periph(AT91_PIN_PC15, 0); /* LCDD11 */
547 at91_set_B_periph(AT91_PIN_PC16, 0); /* LCDD12 */
548 at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD13 */
549 at91_set_B_periph(AT91_PIN_PC18, 0); /* LCDD14 */
550 at91_set_B_periph(AT91_PIN_PC19, 0); /* LCDD15 */
551 at91_set_B_periph(AT91_PIN_PC20, 0); /* LCDD18 */
552 at91_set_B_periph(AT91_PIN_PC21, 0); /* LCDD19 */
553 at91_set_B_periph(AT91_PIN_PC22, 0); /* LCDD20 */
554 at91_set_B_periph(AT91_PIN_PC23, 0); /* LCDD21 */
555 at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */
556 at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */
557
558 lcdc_data = *data;
559 platform_device_register(&at91_lcdc_device);
560 }
561 #else
562 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
563 #endif
564
565
566 /* --------------------------------------------------------------------
567 * Timer/Counter block
568 * -------------------------------------------------------------------- */
569
570 #ifdef CONFIG_ATMEL_TCLIB
571
572 static struct resource tcb_resources[] = {
573 [0] = {
574 .start = AT91SAM9RL_BASE_TCB0,
575 .end = AT91SAM9RL_BASE_TCB0 + SZ_16K - 1,
576 .flags = IORESOURCE_MEM,
577 },
578 [1] = {
579 .start = AT91SAM9RL_ID_TC0,
580 .end = AT91SAM9RL_ID_TC0,
581 .flags = IORESOURCE_IRQ,
582 },
583 [2] = {
584 .start = AT91SAM9RL_ID_TC1,
585 .end = AT91SAM9RL_ID_TC1,
586 .flags = IORESOURCE_IRQ,
587 },
588 [3] = {
589 .start = AT91SAM9RL_ID_TC2,
590 .end = AT91SAM9RL_ID_TC2,
591 .flags = IORESOURCE_IRQ,
592 },
593 };
594
595 static struct platform_device at91sam9rl_tcb_device = {
596 .name = "atmel_tcb",
597 .id = 0,
598 .resource = tcb_resources,
599 .num_resources = ARRAY_SIZE(tcb_resources),
600 };
601
602 static void __init at91_add_device_tc(void)
603 {
604 platform_device_register(&at91sam9rl_tcb_device);
605 }
606 #else
607 static void __init at91_add_device_tc(void) { }
608 #endif
609
610
611 /* --------------------------------------------------------------------
612 * Touchscreen
613 * -------------------------------------------------------------------- */
614
615 #if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
616 static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
617 static struct at91_tsadcc_data tsadcc_data;
618
619 static struct resource tsadcc_resources[] = {
620 [0] = {
621 .start = AT91SAM9RL_BASE_TSC,
622 .end = AT91SAM9RL_BASE_TSC + SZ_16K - 1,
623 .flags = IORESOURCE_MEM,
624 },
625 [1] = {
626 .start = AT91SAM9RL_ID_TSC,
627 .end = AT91SAM9RL_ID_TSC,
628 .flags = IORESOURCE_IRQ,
629 }
630 };
631
632 static struct platform_device at91sam9rl_tsadcc_device = {
633 .name = "atmel_tsadcc",
634 .id = -1,
635 .dev = {
636 .dma_mask = &tsadcc_dmamask,
637 .coherent_dma_mask = DMA_BIT_MASK(32),
638 .platform_data = &tsadcc_data,
639 },
640 .resource = tsadcc_resources,
641 .num_resources = ARRAY_SIZE(tsadcc_resources),
642 };
643
644 void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
645 {
646 if (!data)
647 return;
648
649 at91_set_A_periph(AT91_PIN_PA17, 0); /* AD0_XR */
650 at91_set_A_periph(AT91_PIN_PA18, 0); /* AD1_XL */
651 at91_set_A_periph(AT91_PIN_PA19, 0); /* AD2_YT */
652 at91_set_A_periph(AT91_PIN_PA20, 0); /* AD3_TB */
653
654 tsadcc_data = *data;
655 platform_device_register(&at91sam9rl_tsadcc_device);
656 }
657 #else
658 void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
659 #endif
660
661
662 /* --------------------------------------------------------------------
663 * RTC
664 * -------------------------------------------------------------------- */
665
666 #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
667 static struct platform_device at91sam9rl_rtc_device = {
668 .name = "at91_rtc",
669 .id = -1,
670 .num_resources = 0,
671 };
672
673 static void __init at91_add_device_rtc(void)
674 {
675 platform_device_register(&at91sam9rl_rtc_device);
676 }
677 #else
678 static void __init at91_add_device_rtc(void) {}
679 #endif
680
681
682 /* --------------------------------------------------------------------
683 * RTT
684 * -------------------------------------------------------------------- */
685
686 static struct resource rtt_resources[] = {
687 {
688 .start = AT91_BASE_SYS + AT91_RTT,
689 .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
690 .flags = IORESOURCE_MEM,
691 }
692 };
693
694 static struct platform_device at91sam9rl_rtt_device = {
695 .name = "at91_rtt",
696 .id = 0,
697 .resource = rtt_resources,
698 .num_resources = ARRAY_SIZE(rtt_resources),
699 };
700
701 static void __init at91_add_device_rtt(void)
702 {
703 platform_device_register(&at91sam9rl_rtt_device);
704 }
705
706
707 /* --------------------------------------------------------------------
708 * Watchdog
709 * -------------------------------------------------------------------- */
710
711 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
712 static struct platform_device at91sam9rl_wdt_device = {
713 .name = "at91_wdt",
714 .id = -1,
715 .num_resources = 0,
716 };
717
718 static void __init at91_add_device_watchdog(void)
719 {
720 platform_device_register(&at91sam9rl_wdt_device);
721 }
722 #else
723 static void __init at91_add_device_watchdog(void) {}
724 #endif
725
726
727 /* --------------------------------------------------------------------
728 * PWM
729 * --------------------------------------------------------------------*/
730
731 #if defined(CONFIG_ATMEL_PWM)
732 static u32 pwm_mask;
733
734 static struct resource pwm_resources[] = {
735 [0] = {
736 .start = AT91SAM9RL_BASE_PWMC,
737 .end = AT91SAM9RL_BASE_PWMC + SZ_16K - 1,
738 .flags = IORESOURCE_MEM,
739 },
740 [1] = {
741 .start = AT91SAM9RL_ID_PWMC,
742 .end = AT91SAM9RL_ID_PWMC,
743 .flags = IORESOURCE_IRQ,
744 },
745 };
746
747 static struct platform_device at91sam9rl_pwm0_device = {
748 .name = "atmel_pwm",
749 .id = -1,
750 .dev = {
751 .platform_data = &pwm_mask,
752 },
753 .resource = pwm_resources,
754 .num_resources = ARRAY_SIZE(pwm_resources),
755 };
756
757 void __init at91_add_device_pwm(u32 mask)
758 {
759 if (mask & (1 << AT91_PWM0))
760 at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM0 */
761
762 if (mask & (1 << AT91_PWM1))
763 at91_set_B_periph(AT91_PIN_PB9, 1); /* enable PWM1 */
764
765 if (mask & (1 << AT91_PWM2))
766 at91_set_B_periph(AT91_PIN_PD5, 1); /* enable PWM2 */
767
768 if (mask & (1 << AT91_PWM3))
769 at91_set_B_periph(AT91_PIN_PD8, 1); /* enable PWM3 */
770
771 pwm_mask = mask;
772
773 platform_device_register(&at91sam9rl_pwm0_device);
774 }
775 #else
776 void __init at91_add_device_pwm(u32 mask) {}
777 #endif
778
779
780 /* --------------------------------------------------------------------
781 * SSC -- Synchronous Serial Controller
782 * -------------------------------------------------------------------- */
783
784 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
785 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
786
787 static struct resource ssc0_resources[] = {
788 [0] = {
789 .start = AT91SAM9RL_BASE_SSC0,
790 .end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
791 .flags = IORESOURCE_MEM,
792 },
793 [1] = {
794 .start = AT91SAM9RL_ID_SSC0,
795 .end = AT91SAM9RL_ID_SSC0,
796 .flags = IORESOURCE_IRQ,
797 },
798 };
799
800 static struct platform_device at91sam9rl_ssc0_device = {
801 .name = "ssc",
802 .id = 0,
803 .dev = {
804 .dma_mask = &ssc0_dmamask,
805 .coherent_dma_mask = DMA_BIT_MASK(32),
806 },
807 .resource = ssc0_resources,
808 .num_resources = ARRAY_SIZE(ssc0_resources),
809 };
810
811 static inline void configure_ssc0_pins(unsigned pins)
812 {
813 if (pins & ATMEL_SSC_TF)
814 at91_set_A_periph(AT91_PIN_PC0, 1);
815 if (pins & ATMEL_SSC_TK)
816 at91_set_A_periph(AT91_PIN_PC1, 1);
817 if (pins & ATMEL_SSC_TD)
818 at91_set_A_periph(AT91_PIN_PA15, 1);
819 if (pins & ATMEL_SSC_RD)
820 at91_set_A_periph(AT91_PIN_PA16, 1);
821 if (pins & ATMEL_SSC_RK)
822 at91_set_B_periph(AT91_PIN_PA10, 1);
823 if (pins & ATMEL_SSC_RF)
824 at91_set_B_periph(AT91_PIN_PA22, 1);
825 }
826
827 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
828
829 static struct resource ssc1_resources[] = {
830 [0] = {
831 .start = AT91SAM9RL_BASE_SSC1,
832 .end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
833 .flags = IORESOURCE_MEM,
834 },
835 [1] = {
836 .start = AT91SAM9RL_ID_SSC1,
837 .end = AT91SAM9RL_ID_SSC1,
838 .flags = IORESOURCE_IRQ,
839 },
840 };
841
842 static struct platform_device at91sam9rl_ssc1_device = {
843 .name = "ssc",
844 .id = 1,
845 .dev = {
846 .dma_mask = &ssc1_dmamask,
847 .coherent_dma_mask = DMA_BIT_MASK(32),
848 },
849 .resource = ssc1_resources,
850 .num_resources = ARRAY_SIZE(ssc1_resources),
851 };
852
853 static inline void configure_ssc1_pins(unsigned pins)
854 {
855 if (pins & ATMEL_SSC_TF)
856 at91_set_B_periph(AT91_PIN_PA29, 1);
857 if (pins & ATMEL_SSC_TK)
858 at91_set_B_periph(AT91_PIN_PA30, 1);
859 if (pins & ATMEL_SSC_TD)
860 at91_set_B_periph(AT91_PIN_PA13, 1);
861 if (pins & ATMEL_SSC_RD)
862 at91_set_B_periph(AT91_PIN_PA14, 1);
863 if (pins & ATMEL_SSC_RK)
864 at91_set_B_periph(AT91_PIN_PA9, 1);
865 if (pins & ATMEL_SSC_RF)
866 at91_set_B_periph(AT91_PIN_PA8, 1);
867 }
868
869 /*
870 * SSC controllers are accessed through library code, instead of any
871 * kind of all-singing/all-dancing driver. For example one could be
872 * used by a particular I2S audio codec's driver, while another one
873 * on the same system might be used by a custom data capture driver.
874 */
875 void __init at91_add_device_ssc(unsigned id, unsigned pins)
876 {
877 struct platform_device *pdev;
878
879 /*
880 * NOTE: caller is responsible for passing information matching
881 * "pins" to whatever will be using each particular controller.
882 */
883 switch (id) {
884 case AT91SAM9RL_ID_SSC0:
885 pdev = &at91sam9rl_ssc0_device;
886 configure_ssc0_pins(pins);
887 break;
888 case AT91SAM9RL_ID_SSC1:
889 pdev = &at91sam9rl_ssc1_device;
890 configure_ssc1_pins(pins);
891 break;
892 default:
893 return;
894 }
895
896 platform_device_register(pdev);
897 }
898
899 #else
900 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
901 #endif
902
903
904 /* --------------------------------------------------------------------
905 * UART
906 * -------------------------------------------------------------------- */
907
908 #if defined(CONFIG_SERIAL_ATMEL)
909 static struct resource dbgu_resources[] = {
910 [0] = {
911 .start = AT91_VA_BASE_SYS + AT91_DBGU,
912 .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
913 .flags = IORESOURCE_MEM,
914 },
915 [1] = {
916 .start = AT91_ID_SYS,
917 .end = AT91_ID_SYS,
918 .flags = IORESOURCE_IRQ,
919 },
920 };
921
922 static struct atmel_uart_data dbgu_data = {
923 .use_dma_tx = 0,
924 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
925 .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
926 };
927
928 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
929
930 static struct platform_device at91sam9rl_dbgu_device = {
931 .name = "atmel_usart",
932 .id = 0,
933 .dev = {
934 .dma_mask = &dbgu_dmamask,
935 .coherent_dma_mask = DMA_BIT_MASK(32),
936 .platform_data = &dbgu_data,
937 },
938 .resource = dbgu_resources,
939 .num_resources = ARRAY_SIZE(dbgu_resources),
940 };
941
942 static inline void configure_dbgu_pins(void)
943 {
944 at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
945 at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
946 }
947
948 static struct resource uart0_resources[] = {
949 [0] = {
950 .start = AT91SAM9RL_BASE_US0,
951 .end = AT91SAM9RL_BASE_US0 + SZ_16K - 1,
952 .flags = IORESOURCE_MEM,
953 },
954 [1] = {
955 .start = AT91SAM9RL_ID_US0,
956 .end = AT91SAM9RL_ID_US0,
957 .flags = IORESOURCE_IRQ,
958 },
959 };
960
961 static struct atmel_uart_data uart0_data = {
962 .use_dma_tx = 1,
963 .use_dma_rx = 1,
964 };
965
966 static u64 uart0_dmamask = DMA_BIT_MASK(32);
967
968 static struct platform_device at91sam9rl_uart0_device = {
969 .name = "atmel_usart",
970 .id = 1,
971 .dev = {
972 .dma_mask = &uart0_dmamask,
973 .coherent_dma_mask = DMA_BIT_MASK(32),
974 .platform_data = &uart0_data,
975 },
976 .resource = uart0_resources,
977 .num_resources = ARRAY_SIZE(uart0_resources),
978 };
979
980 static inline void configure_usart0_pins(unsigned pins)
981 {
982 at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
983 at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
984
985 if (pins & ATMEL_UART_RTS)
986 at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */
987 if (pins & ATMEL_UART_CTS)
988 at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */
989 if (pins & ATMEL_UART_DSR)
990 at91_set_A_periph(AT91_PIN_PD14, 0); /* DSR0 */
991 if (pins & ATMEL_UART_DTR)
992 at91_set_A_periph(AT91_PIN_PD15, 0); /* DTR0 */
993 if (pins & ATMEL_UART_DCD)
994 at91_set_A_periph(AT91_PIN_PD16, 0); /* DCD0 */
995 if (pins & ATMEL_UART_RI)
996 at91_set_A_periph(AT91_PIN_PD17, 0); /* RI0 */
997 }
998
999 static struct resource uart1_resources[] = {
1000 [0] = {
1001 .start = AT91SAM9RL_BASE_US1,
1002 .end = AT91SAM9RL_BASE_US1 + SZ_16K - 1,
1003 .flags = IORESOURCE_MEM,
1004 },
1005 [1] = {
1006 .start = AT91SAM9RL_ID_US1,
1007 .end = AT91SAM9RL_ID_US1,
1008 .flags = IORESOURCE_IRQ,
1009 },
1010 };
1011
1012 static struct atmel_uart_data uart1_data = {
1013 .use_dma_tx = 1,
1014 .use_dma_rx = 1,
1015 };
1016
1017 static u64 uart1_dmamask = DMA_BIT_MASK(32);
1018
1019 static struct platform_device at91sam9rl_uart1_device = {
1020 .name = "atmel_usart",
1021 .id = 2,
1022 .dev = {
1023 .dma_mask = &uart1_dmamask,
1024 .coherent_dma_mask = DMA_BIT_MASK(32),
1025 .platform_data = &uart1_data,
1026 },
1027 .resource = uart1_resources,
1028 .num_resources = ARRAY_SIZE(uart1_resources),
1029 };
1030
1031 static inline void configure_usart1_pins(unsigned pins)
1032 {
1033 at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
1034 at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
1035
1036 if (pins & ATMEL_UART_RTS)
1037 at91_set_B_periph(AT91_PIN_PA18, 0); /* RTS1 */
1038 if (pins & ATMEL_UART_CTS)
1039 at91_set_B_periph(AT91_PIN_PA19, 0); /* CTS1 */
1040 }
1041
1042 static struct resource uart2_resources[] = {
1043 [0] = {
1044 .start = AT91SAM9RL_BASE_US2,
1045 .end = AT91SAM9RL_BASE_US2 + SZ_16K - 1,
1046 .flags = IORESOURCE_MEM,
1047 },
1048 [1] = {
1049 .start = AT91SAM9RL_ID_US2,
1050 .end = AT91SAM9RL_ID_US2,
1051 .flags = IORESOURCE_IRQ,
1052 },
1053 };
1054
1055 static struct atmel_uart_data uart2_data = {
1056 .use_dma_tx = 1,
1057 .use_dma_rx = 1,
1058 };
1059
1060 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1061
1062 static struct platform_device at91sam9rl_uart2_device = {
1063 .name = "atmel_usart",
1064 .id = 3,
1065 .dev = {
1066 .dma_mask = &uart2_dmamask,
1067 .coherent_dma_mask = DMA_BIT_MASK(32),
1068 .platform_data = &uart2_data,
1069 },
1070 .resource = uart2_resources,
1071 .num_resources = ARRAY_SIZE(uart2_resources),
1072 };
1073
1074 static inline void configure_usart2_pins(unsigned pins)
1075 {
1076 at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
1077 at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
1078
1079 if (pins & ATMEL_UART_RTS)
1080 at91_set_A_periph(AT91_PIN_PA29, 0); /* RTS2 */
1081 if (pins & ATMEL_UART_CTS)
1082 at91_set_A_periph(AT91_PIN_PA30, 0); /* CTS2 */
1083 }
1084
1085 static struct resource uart3_resources[] = {
1086 [0] = {
1087 .start = AT91SAM9RL_BASE_US3,
1088 .end = AT91SAM9RL_BASE_US3 + SZ_16K - 1,
1089 .flags = IORESOURCE_MEM,
1090 },
1091 [1] = {
1092 .start = AT91SAM9RL_ID_US3,
1093 .end = AT91SAM9RL_ID_US3,
1094 .flags = IORESOURCE_IRQ,
1095 },
1096 };
1097
1098 static struct atmel_uart_data uart3_data = {
1099 .use_dma_tx = 1,
1100 .use_dma_rx = 1,
1101 };
1102
1103 static u64 uart3_dmamask = DMA_BIT_MASK(32);
1104
1105 static struct platform_device at91sam9rl_uart3_device = {
1106 .name = "atmel_usart",
1107 .id = 4,
1108 .dev = {
1109 .dma_mask = &uart3_dmamask,
1110 .coherent_dma_mask = DMA_BIT_MASK(32),
1111 .platform_data = &uart3_data,
1112 },
1113 .resource = uart3_resources,
1114 .num_resources = ARRAY_SIZE(uart3_resources),
1115 };
1116
1117 static inline void configure_usart3_pins(unsigned pins)
1118 {
1119 at91_set_A_periph(AT91_PIN_PB0, 1); /* TXD3 */
1120 at91_set_A_periph(AT91_PIN_PB1, 0); /* RXD3 */
1121
1122 if (pins & ATMEL_UART_RTS)
1123 at91_set_B_periph(AT91_PIN_PD4, 0); /* RTS3 */
1124 if (pins & ATMEL_UART_CTS)
1125 at91_set_B_periph(AT91_PIN_PD3, 0); /* CTS3 */
1126 }
1127
1128 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1129 struct platform_device *atmel_default_console_device; /* the serial console device */
1130
1131 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1132 {
1133 struct platform_device *pdev;
1134 struct atmel_uart_data *pdata;
1135
1136 switch (id) {
1137 case 0: /* DBGU */
1138 pdev = &at91sam9rl_dbgu_device;
1139 configure_dbgu_pins();
1140 break;
1141 case AT91SAM9RL_ID_US0:
1142 pdev = &at91sam9rl_uart0_device;
1143 configure_usart0_pins(pins);
1144 break;
1145 case AT91SAM9RL_ID_US1:
1146 pdev = &at91sam9rl_uart1_device;
1147 configure_usart1_pins(pins);
1148 break;
1149 case AT91SAM9RL_ID_US2:
1150 pdev = &at91sam9rl_uart2_device;
1151 configure_usart2_pins(pins);
1152 break;
1153 case AT91SAM9RL_ID_US3:
1154 pdev = &at91sam9rl_uart3_device;
1155 configure_usart3_pins(pins);
1156 break;
1157 default:
1158 return;
1159 }
1160 pdata = pdev->dev.platform_data;
1161 pdata->num = portnr; /* update to mapped ID */
1162
1163 if (portnr < ATMEL_MAX_UART)
1164 at91_uarts[portnr] = pdev;
1165 }
1166
1167 void __init at91_set_serial_console(unsigned portnr)
1168 {
1169 if (portnr < ATMEL_MAX_UART) {
1170 atmel_default_console_device = at91_uarts[portnr];
1171 at91sam9rl_set_console_clock(at91_uarts[portnr]->id);
1172 }
1173 }
1174
1175 void __init at91_add_device_serial(void)
1176 {
1177 int i;
1178
1179 for (i = 0; i < ATMEL_MAX_UART; i++) {
1180 if (at91_uarts[i])
1181 platform_device_register(at91_uarts[i]);
1182 }
1183
1184 if (!atmel_default_console_device)
1185 printk(KERN_INFO "AT91: No default serial console defined.\n");
1186 }
1187 #else
1188 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1189 void __init at91_set_serial_console(unsigned portnr) {}
1190 void __init at91_add_device_serial(void) {}
1191 #endif
1192
1193
1194 /* -------------------------------------------------------------------- */
1195
1196 /*
1197 * These devices are always present and don't need any board-specific
1198 * setup.
1199 */
1200 static int __init at91_add_standard_devices(void)
1201 {
1202 at91_add_device_hdmac();
1203 at91_add_device_rtc();
1204 at91_add_device_rtt();
1205 at91_add_device_watchdog();
1206 at91_add_device_tc();
1207 return 0;
1208 }
1209
1210 arch_initcall(at91_add_standard_devices);
Linux with added FPC-III support