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/gpio.h>
14 #include <linux/platform_device.h>
15 #include <linux/i2c-gpio.h>
16
17 #include <linux/fb.h>
18 #include <video/atmel_lcdc.h>
19
20 #include <mach/board.h>
21 #include <mach/at91sam9rl.h>
22 #include <mach/at91sam9rl_matrix.h>
23 #include <mach/at91_matrix.h>
24 #include <mach/at91sam9_smc.h>
25 #include <mach/at_hdmac.h>
26
27 #include "generic.h"
28
29
30 /* --------------------------------------------------------------------
31 * HDMAC - AHB DMA Controller
32 * -------------------------------------------------------------------- */
33
34 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
35 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
36
37 static struct resource hdmac_resources[] = {
38 [0] = {
39 .start = AT91SAM9RL_BASE_DMA,
40 .end = AT91SAM9RL_BASE_DMA + SZ_512 - 1,
41 .flags = IORESOURCE_MEM,
42 },
43 [2] = {
44 .start = AT91SAM9RL_ID_DMA,
45 .end = AT91SAM9RL_ID_DMA,
46 .flags = IORESOURCE_IRQ,
47 },
48 };
49
50 static struct platform_device at_hdmac_device = {
51 .name = "at91sam9rl_dma",
52 .id = -1,
53 .dev = {
54 .dma_mask = &hdmac_dmamask,
55 .coherent_dma_mask = DMA_BIT_MASK(32),
56 },
57 .resource = hdmac_resources,
58 .num_resources = ARRAY_SIZE(hdmac_resources),
59 };
60
at91_add_device_hdmac(void)61 void __init at91_add_device_hdmac(void)
62 {
63 platform_device_register(&at_hdmac_device);
64 }
65 #else
at91_add_device_hdmac(void)66 void __init at91_add_device_hdmac(void) {}
67 #endif
68
69 /* --------------------------------------------------------------------
70 * USB HS Device (Gadget)
71 * -------------------------------------------------------------------- */
72
73 #if defined(CONFIG_USB_ATMEL_USBA) || defined(CONFIG_USB_ATMEL_USBA_MODULE)
74
75 static struct resource usba_udc_resources[] = {
76 [0] = {
77 .start = AT91SAM9RL_UDPHS_FIFO,
78 .end = AT91SAM9RL_UDPHS_FIFO + SZ_512K - 1,
79 .flags = IORESOURCE_MEM,
80 },
81 [1] = {
82 .start = AT91SAM9RL_BASE_UDPHS,
83 .end = AT91SAM9RL_BASE_UDPHS + SZ_1K - 1,
84 .flags = IORESOURCE_MEM,
85 },
86 [2] = {
87 .start = AT91SAM9RL_ID_UDPHS,
88 .end = AT91SAM9RL_ID_UDPHS,
89 .flags = IORESOURCE_IRQ,
90 },
91 };
92
93 #define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
94 [idx] = { \
95 .name = nam, \
96 .index = idx, \
97 .fifo_size = maxpkt, \
98 .nr_banks = maxbk, \
99 .can_dma = dma, \
100 .can_isoc = isoc, \
101 }
102
103 static struct usba_ep_data usba_udc_ep[] __initdata = {
104 EP("ep0", 0, 64, 1, 0, 0),
105 EP("ep1", 1, 1024, 2, 1, 1),
106 EP("ep2", 2, 1024, 2, 1, 1),
107 EP("ep3", 3, 1024, 3, 1, 0),
108 EP("ep4", 4, 1024, 3, 1, 0),
109 EP("ep5", 5, 1024, 3, 1, 1),
110 EP("ep6", 6, 1024, 3, 1, 1),
111 };
112
113 #undef EP
114
115 /*
116 * pdata doesn't have room for any endpoints, so we need to
117 * append room for the ones we need right after it.
118 */
119 static struct {
120 struct usba_platform_data pdata;
121 struct usba_ep_data ep[7];
122 } usba_udc_data;
123
124 static struct platform_device at91_usba_udc_device = {
125 .name = "atmel_usba_udc",
126 .id = -1,
127 .dev = {
128 .platform_data = &usba_udc_data.pdata,
129 },
130 .resource = usba_udc_resources,
131 .num_resources = ARRAY_SIZE(usba_udc_resources),
132 };
133
at91_add_device_usba(struct usba_platform_data * data)134 void __init at91_add_device_usba(struct usba_platform_data *data)
135 {
136 /*
137 * Invalid pins are 0 on AT91, but the usba driver is shared
138 * with AVR32, which use negative values instead. Once/if
139 * gpio_is_valid() is ported to AT91, revisit this code.
140 */
141 usba_udc_data.pdata.vbus_pin = -EINVAL;
142 usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
143 memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
144
145 if (data && gpio_is_valid(data->vbus_pin)) {
146 at91_set_gpio_input(data->vbus_pin, 0);
147 at91_set_deglitch(data->vbus_pin, 1);
148 usba_udc_data.pdata.vbus_pin = data->vbus_pin;
149 }
150
151 /* Pullup pin is handled internally by USB device peripheral */
152
153 platform_device_register(&at91_usba_udc_device);
154 }
155 #else
at91_add_device_usba(struct usba_platform_data * data)156 void __init at91_add_device_usba(struct usba_platform_data *data) {}
157 #endif
158
159
160 /* --------------------------------------------------------------------
161 * MMC / SD
162 * -------------------------------------------------------------------- */
163
164 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
165 static u64 mmc_dmamask = DMA_BIT_MASK(32);
166 static struct at91_mmc_data mmc_data;
167
168 static struct resource mmc_resources[] = {
169 [0] = {
170 .start = AT91SAM9RL_BASE_MCI,
171 .end = AT91SAM9RL_BASE_MCI + SZ_16K - 1,
172 .flags = IORESOURCE_MEM,
173 },
174 [1] = {
175 .start = AT91SAM9RL_ID_MCI,
176 .end = AT91SAM9RL_ID_MCI,
177 .flags = IORESOURCE_IRQ,
178 },
179 };
180
181 static struct platform_device at91sam9rl_mmc_device = {
182 .name = "at91_mci",
183 .id = -1,
184 .dev = {
185 .dma_mask = &mmc_dmamask,
186 .coherent_dma_mask = DMA_BIT_MASK(32),
187 .platform_data = &mmc_data,
188 },
189 .resource = mmc_resources,
190 .num_resources = ARRAY_SIZE(mmc_resources),
191 };
192
at91_add_device_mmc(short mmc_id,struct at91_mmc_data * data)193 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
194 {
195 if (!data)
196 return;
197
198 /* input/irq */
199 if (gpio_is_valid(data->det_pin)) {
200 at91_set_gpio_input(data->det_pin, 1);
201 at91_set_deglitch(data->det_pin, 1);
202 }
203 if (gpio_is_valid(data->wp_pin))
204 at91_set_gpio_input(data->wp_pin, 1);
205 if (gpio_is_valid(data->vcc_pin))
206 at91_set_gpio_output(data->vcc_pin, 0);
207
208 /* CLK */
209 at91_set_A_periph(AT91_PIN_PA2, 0);
210
211 /* CMD */
212 at91_set_A_periph(AT91_PIN_PA1, 1);
213
214 /* DAT0, maybe DAT1..DAT3 */
215 at91_set_A_periph(AT91_PIN_PA0, 1);
216 if (data->wire4) {
217 at91_set_A_periph(AT91_PIN_PA3, 1);
218 at91_set_A_periph(AT91_PIN_PA4, 1);
219 at91_set_A_periph(AT91_PIN_PA5, 1);
220 }
221
222 mmc_data = *data;
223 platform_device_register(&at91sam9rl_mmc_device);
224 }
225 #else
at91_add_device_mmc(short mmc_id,struct at91_mmc_data * data)226 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
227 #endif
228
229
230 /* --------------------------------------------------------------------
231 * NAND / SmartMedia
232 * -------------------------------------------------------------------- */
233
234 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
235 static struct atmel_nand_data nand_data;
236
237 #define NAND_BASE AT91_CHIPSELECT_3
238
239 static struct resource nand_resources[] = {
240 [0] = {
241 .start = NAND_BASE,
242 .end = NAND_BASE + SZ_256M - 1,
243 .flags = IORESOURCE_MEM,
244 },
245 [1] = {
246 .start = AT91SAM9RL_BASE_ECC,
247 .end = AT91SAM9RL_BASE_ECC + SZ_512 - 1,
248 .flags = IORESOURCE_MEM,
249 }
250 };
251
252 static struct platform_device atmel_nand_device = {
253 .name = "atmel_nand",
254 .id = -1,
255 .dev = {
256 .platform_data = &nand_data,
257 },
258 .resource = nand_resources,
259 .num_resources = ARRAY_SIZE(nand_resources),
260 };
261
at91_add_device_nand(struct atmel_nand_data * data)262 void __init at91_add_device_nand(struct atmel_nand_data *data)
263 {
264 unsigned long csa;
265
266 if (!data)
267 return;
268
269 csa = at91_matrix_read(AT91_MATRIX_EBICSA);
270 at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
271
272 /* enable pin */
273 if (gpio_is_valid(data->enable_pin))
274 at91_set_gpio_output(data->enable_pin, 1);
275
276 /* ready/busy pin */
277 if (gpio_is_valid(data->rdy_pin))
278 at91_set_gpio_input(data->rdy_pin, 1);
279
280 /* card detect pin */
281 if (gpio_is_valid(data->det_pin))
282 at91_set_gpio_input(data->det_pin, 1);
283
284 at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */
285 at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */
286
287 nand_data = *data;
288 platform_device_register(&atmel_nand_device);
289 }
290
291 #else
at91_add_device_nand(struct atmel_nand_data * data)292 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
293 #endif
294
295
296 /* --------------------------------------------------------------------
297 * TWI (i2c)
298 * -------------------------------------------------------------------- */
299
300 /*
301 * Prefer the GPIO code since the TWI controller isn't robust
302 * (gets overruns and underruns under load) and can only issue
303 * repeated STARTs in one scenario (the driver doesn't yet handle them).
304 */
305 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
306
307 static struct i2c_gpio_platform_data pdata = {
308 .sda_pin = AT91_PIN_PA23,
309 .sda_is_open_drain = 1,
310 .scl_pin = AT91_PIN_PA24,
311 .scl_is_open_drain = 1,
312 .udelay = 2, /* ~100 kHz */
313 };
314
315 static struct platform_device at91sam9rl_twi_device = {
316 .name = "i2c-gpio",
317 .id = 0,
318 .dev.platform_data = &pdata,
319 };
320
at91_add_device_i2c(struct i2c_board_info * devices,int nr_devices)321 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
322 {
323 at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
324 at91_set_multi_drive(AT91_PIN_PA23, 1);
325
326 at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
327 at91_set_multi_drive(AT91_PIN_PA24, 1);
328
329 i2c_register_board_info(0, devices, nr_devices);
330 platform_device_register(&at91sam9rl_twi_device);
331 }
332
333 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
334
335 static struct resource twi_resources[] = {
336 [0] = {
337 .start = AT91SAM9RL_BASE_TWI0,
338 .end = AT91SAM9RL_BASE_TWI0 + SZ_16K - 1,
339 .flags = IORESOURCE_MEM,
340 },
341 [1] = {
342 .start = AT91SAM9RL_ID_TWI0,
343 .end = AT91SAM9RL_ID_TWI0,
344 .flags = IORESOURCE_IRQ,
345 },
346 };
347
348 static struct platform_device at91sam9rl_twi_device = {
349 .name = "at91_i2c",
350 .id = -1,
351 .resource = twi_resources,
352 .num_resources = ARRAY_SIZE(twi_resources),
353 };
354
at91_add_device_i2c(struct i2c_board_info * devices,int nr_devices)355 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
356 {
357 /* pins used for TWI interface */
358 at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
359 at91_set_multi_drive(AT91_PIN_PA23, 1);
360
361 at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
362 at91_set_multi_drive(AT91_PIN_PA24, 1);
363
364 i2c_register_board_info(0, devices, nr_devices);
365 platform_device_register(&at91sam9rl_twi_device);
366 }
367 #else
at91_add_device_i2c(struct i2c_board_info * devices,int nr_devices)368 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
369 #endif
370
371
372 /* --------------------------------------------------------------------
373 * SPI
374 * -------------------------------------------------------------------- */
375
376 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
377 static u64 spi_dmamask = DMA_BIT_MASK(32);
378
379 static struct resource spi_resources[] = {
380 [0] = {
381 .start = AT91SAM9RL_BASE_SPI,
382 .end = AT91SAM9RL_BASE_SPI + SZ_16K - 1,
383 .flags = IORESOURCE_MEM,
384 },
385 [1] = {
386 .start = AT91SAM9RL_ID_SPI,
387 .end = AT91SAM9RL_ID_SPI,
388 .flags = IORESOURCE_IRQ,
389 },
390 };
391
392 static struct platform_device at91sam9rl_spi_device = {
393 .name = "atmel_spi",
394 .id = 0,
395 .dev = {
396 .dma_mask = &spi_dmamask,
397 .coherent_dma_mask = DMA_BIT_MASK(32),
398 },
399 .resource = spi_resources,
400 .num_resources = ARRAY_SIZE(spi_resources),
401 };
402
403 static const unsigned spi_standard_cs[4] = { AT91_PIN_PA28, AT91_PIN_PB7, AT91_PIN_PD8, AT91_PIN_PD9 };
404
405
at91_add_device_spi(struct spi_board_info * devices,int nr_devices)406 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
407 {
408 int i;
409 unsigned long cs_pin;
410
411 at91_set_A_periph(AT91_PIN_PA25, 0); /* MISO */
412 at91_set_A_periph(AT91_PIN_PA26, 0); /* MOSI */
413 at91_set_A_periph(AT91_PIN_PA27, 0); /* SPCK */
414
415 /* Enable SPI chip-selects */
416 for (i = 0; i < nr_devices; i++) {
417 if (devices[i].controller_data)
418 cs_pin = (unsigned long) devices[i].controller_data;
419 else
420 cs_pin = spi_standard_cs[devices[i].chip_select];
421
422 if (!gpio_is_valid(cs_pin))
423 continue;
424
425 /* enable chip-select pin */
426 at91_set_gpio_output(cs_pin, 1);
427
428 /* pass chip-select pin to driver */
429 devices[i].controller_data = (void *) cs_pin;
430 }
431
432 spi_register_board_info(devices, nr_devices);
433 platform_device_register(&at91sam9rl_spi_device);
434 }
435 #else
at91_add_device_spi(struct spi_board_info * devices,int nr_devices)436 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
437 #endif
438
439
440 /* --------------------------------------------------------------------
441 * AC97
442 * -------------------------------------------------------------------- */
443
444 #if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
445 static u64 ac97_dmamask = DMA_BIT_MASK(32);
446 static struct ac97c_platform_data ac97_data;
447
448 static struct resource ac97_resources[] = {
449 [0] = {
450 .start = AT91SAM9RL_BASE_AC97C,
451 .end = AT91SAM9RL_BASE_AC97C + SZ_16K - 1,
452 .flags = IORESOURCE_MEM,
453 },
454 [1] = {
455 .start = AT91SAM9RL_ID_AC97C,
456 .end = AT91SAM9RL_ID_AC97C,
457 .flags = IORESOURCE_IRQ,
458 },
459 };
460
461 static struct platform_device at91sam9rl_ac97_device = {
462 .name = "atmel_ac97c",
463 .id = 0,
464 .dev = {
465 .dma_mask = &ac97_dmamask,
466 .coherent_dma_mask = DMA_BIT_MASK(32),
467 .platform_data = &ac97_data,
468 },
469 .resource = ac97_resources,
470 .num_resources = ARRAY_SIZE(ac97_resources),
471 };
472
at91_add_device_ac97(struct ac97c_platform_data * data)473 void __init at91_add_device_ac97(struct ac97c_platform_data *data)
474 {
475 if (!data)
476 return;
477
478 at91_set_A_periph(AT91_PIN_PD1, 0); /* AC97FS */
479 at91_set_A_periph(AT91_PIN_PD2, 0); /* AC97CK */
480 at91_set_A_periph(AT91_PIN_PD3, 0); /* AC97TX */
481 at91_set_A_periph(AT91_PIN_PD4, 0); /* AC97RX */
482
483 /* reset */
484 if (gpio_is_valid(data->reset_pin))
485 at91_set_gpio_output(data->reset_pin, 0);
486
487 ac97_data = *data;
488 platform_device_register(&at91sam9rl_ac97_device);
489 }
490 #else
at91_add_device_ac97(struct ac97c_platform_data * data)491 void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
492 #endif
493
494
495 /* --------------------------------------------------------------------
496 * LCD Controller
497 * -------------------------------------------------------------------- */
498
499 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
500 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
501 static struct atmel_lcdfb_info lcdc_data;
502
503 static struct resource lcdc_resources[] = {
504 [0] = {
505 .start = AT91SAM9RL_LCDC_BASE,
506 .end = AT91SAM9RL_LCDC_BASE + SZ_4K - 1,
507 .flags = IORESOURCE_MEM,
508 },
509 [1] = {
510 .start = AT91SAM9RL_ID_LCDC,
511 .end = AT91SAM9RL_ID_LCDC,
512 .flags = IORESOURCE_IRQ,
513 },
514 };
515
516 static struct platform_device at91_lcdc_device = {
517 .name = "atmel_lcdfb",
518 .id = 0,
519 .dev = {
520 .dma_mask = &lcdc_dmamask,
521 .coherent_dma_mask = DMA_BIT_MASK(32),
522 .platform_data = &lcdc_data,
523 },
524 .resource = lcdc_resources,
525 .num_resources = ARRAY_SIZE(lcdc_resources),
526 };
527
at91_add_device_lcdc(struct atmel_lcdfb_info * data)528 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
529 {
530 if (!data) {
531 return;
532 }
533
534 at91_set_B_periph(AT91_PIN_PC1, 0); /* LCDPWR */
535 at91_set_A_periph(AT91_PIN_PC5, 0); /* LCDHSYNC */
536 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDDOTCK */
537 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDDEN */
538 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDCC */
539 at91_set_B_periph(AT91_PIN_PC9, 0); /* LCDD3 */
540 at91_set_B_periph(AT91_PIN_PC10, 0); /* LCDD4 */
541 at91_set_B_periph(AT91_PIN_PC11, 0); /* LCDD5 */
542 at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD6 */
543 at91_set_B_periph(AT91_PIN_PC13, 0); /* LCDD7 */
544 at91_set_B_periph(AT91_PIN_PC15, 0); /* LCDD11 */
545 at91_set_B_periph(AT91_PIN_PC16, 0); /* LCDD12 */
546 at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD13 */
547 at91_set_B_periph(AT91_PIN_PC18, 0); /* LCDD14 */
548 at91_set_B_periph(AT91_PIN_PC19, 0); /* LCDD15 */
549 at91_set_B_periph(AT91_PIN_PC20, 0); /* LCDD18 */
550 at91_set_B_periph(AT91_PIN_PC21, 0); /* LCDD19 */
551 at91_set_B_periph(AT91_PIN_PC22, 0); /* LCDD20 */
552 at91_set_B_periph(AT91_PIN_PC23, 0); /* LCDD21 */
553 at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */
554 at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */
555
556 lcdc_data = *data;
557 platform_device_register(&at91_lcdc_device);
558 }
559 #else
at91_add_device_lcdc(struct atmel_lcdfb_info * data)560 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
561 #endif
562
563
564 /* --------------------------------------------------------------------
565 * Timer/Counter block
566 * -------------------------------------------------------------------- */
567
568 #ifdef CONFIG_ATMEL_TCLIB
569
570 static struct resource tcb_resources[] = {
571 [0] = {
572 .start = AT91SAM9RL_BASE_TCB0,
573 .end = AT91SAM9RL_BASE_TCB0 + SZ_16K - 1,
574 .flags = IORESOURCE_MEM,
575 },
576 [1] = {
577 .start = AT91SAM9RL_ID_TC0,
578 .end = AT91SAM9RL_ID_TC0,
579 .flags = IORESOURCE_IRQ,
580 },
581 [2] = {
582 .start = AT91SAM9RL_ID_TC1,
583 .end = AT91SAM9RL_ID_TC1,
584 .flags = IORESOURCE_IRQ,
585 },
586 [3] = {
587 .start = AT91SAM9RL_ID_TC2,
588 .end = AT91SAM9RL_ID_TC2,
589 .flags = IORESOURCE_IRQ,
590 },
591 };
592
593 static struct platform_device at91sam9rl_tcb_device = {
594 .name = "atmel_tcb",
595 .id = 0,
596 .resource = tcb_resources,
597 .num_resources = ARRAY_SIZE(tcb_resources),
598 };
599
at91_add_device_tc(void)600 static void __init at91_add_device_tc(void)
601 {
602 platform_device_register(&at91sam9rl_tcb_device);
603 }
604 #else
at91_add_device_tc(void)605 static void __init at91_add_device_tc(void) { }
606 #endif
607
608
609 /* --------------------------------------------------------------------
610 * Touchscreen
611 * -------------------------------------------------------------------- */
612
613 #if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
614 static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
615 static struct at91_tsadcc_data tsadcc_data;
616
617 static struct resource tsadcc_resources[] = {
618 [0] = {
619 .start = AT91SAM9RL_BASE_TSC,
620 .end = AT91SAM9RL_BASE_TSC + SZ_16K - 1,
621 .flags = IORESOURCE_MEM,
622 },
623 [1] = {
624 .start = AT91SAM9RL_ID_TSC,
625 .end = AT91SAM9RL_ID_TSC,
626 .flags = IORESOURCE_IRQ,
627 }
628 };
629
630 static struct platform_device at91sam9rl_tsadcc_device = {
631 .name = "atmel_tsadcc",
632 .id = -1,
633 .dev = {
634 .dma_mask = &tsadcc_dmamask,
635 .coherent_dma_mask = DMA_BIT_MASK(32),
636 .platform_data = &tsadcc_data,
637 },
638 .resource = tsadcc_resources,
639 .num_resources = ARRAY_SIZE(tsadcc_resources),
640 };
641
at91_add_device_tsadcc(struct at91_tsadcc_data * data)642 void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
643 {
644 if (!data)
645 return;
646
647 at91_set_A_periph(AT91_PIN_PA17, 0); /* AD0_XR */
648 at91_set_A_periph(AT91_PIN_PA18, 0); /* AD1_XL */
649 at91_set_A_periph(AT91_PIN_PA19, 0); /* AD2_YT */
650 at91_set_A_periph(AT91_PIN_PA20, 0); /* AD3_TB */
651
652 tsadcc_data = *data;
653 platform_device_register(&at91sam9rl_tsadcc_device);
654 }
655 #else
at91_add_device_tsadcc(struct at91_tsadcc_data * data)656 void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
657 #endif
658
659
660 /* --------------------------------------------------------------------
661 * RTC
662 * -------------------------------------------------------------------- */
663
664 #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
665 static struct platform_device at91sam9rl_rtc_device = {
666 .name = "at91_rtc",
667 .id = -1,
668 .num_resources = 0,
669 };
670
at91_add_device_rtc(void)671 static void __init at91_add_device_rtc(void)
672 {
673 platform_device_register(&at91sam9rl_rtc_device);
674 }
675 #else
at91_add_device_rtc(void)676 static void __init at91_add_device_rtc(void) {}
677 #endif
678
679
680 /* --------------------------------------------------------------------
681 * RTT
682 * -------------------------------------------------------------------- */
683
684 static struct resource rtt_resources[] = {
685 {
686 .start = AT91SAM9RL_BASE_RTT,
687 .end = AT91SAM9RL_BASE_RTT + SZ_16 - 1,
688 .flags = IORESOURCE_MEM,
689 }, {
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 };
699
700 #if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
at91_add_device_rtt_rtc(void)701 static void __init at91_add_device_rtt_rtc(void)
702 {
703 at91sam9rl_rtt_device.name = "rtc-at91sam9";
704 /*
705 * The second resource is needed:
706 * GPBR will serve as the storage for RTC time offset
707 */
708 at91sam9rl_rtt_device.num_resources = 2;
709 rtt_resources[1].start = AT91SAM9RL_BASE_GPBR +
710 4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
711 rtt_resources[1].end = rtt_resources[1].start + 3;
712 }
713 #else
at91_add_device_rtt_rtc(void)714 static void __init at91_add_device_rtt_rtc(void)
715 {
716 /* Only one resource is needed: RTT not used as RTC */
717 at91sam9rl_rtt_device.num_resources = 1;
718 }
719 #endif
720
at91_add_device_rtt(void)721 static void __init at91_add_device_rtt(void)
722 {
723 at91_add_device_rtt_rtc();
724 platform_device_register(&at91sam9rl_rtt_device);
725 }
726
727
728 /* --------------------------------------------------------------------
729 * Watchdog
730 * -------------------------------------------------------------------- */
731
732 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
733 static struct resource wdt_resources[] = {
734 {
735 .start = AT91SAM9RL_BASE_WDT,
736 .end = AT91SAM9RL_BASE_WDT + SZ_16 - 1,
737 .flags = IORESOURCE_MEM,
738 }
739 };
740
741 static struct platform_device at91sam9rl_wdt_device = {
742 .name = "at91_wdt",
743 .id = -1,
744 .resource = wdt_resources,
745 .num_resources = ARRAY_SIZE(wdt_resources),
746 };
747
at91_add_device_watchdog(void)748 static void __init at91_add_device_watchdog(void)
749 {
750 platform_device_register(&at91sam9rl_wdt_device);
751 }
752 #else
at91_add_device_watchdog(void)753 static void __init at91_add_device_watchdog(void) {}
754 #endif
755
756
757 /* --------------------------------------------------------------------
758 * PWM
759 * --------------------------------------------------------------------*/
760
761 #if defined(CONFIG_ATMEL_PWM)
762 static u32 pwm_mask;
763
764 static struct resource pwm_resources[] = {
765 [0] = {
766 .start = AT91SAM9RL_BASE_PWMC,
767 .end = AT91SAM9RL_BASE_PWMC + SZ_16K - 1,
768 .flags = IORESOURCE_MEM,
769 },
770 [1] = {
771 .start = AT91SAM9RL_ID_PWMC,
772 .end = AT91SAM9RL_ID_PWMC,
773 .flags = IORESOURCE_IRQ,
774 },
775 };
776
777 static struct platform_device at91sam9rl_pwm0_device = {
778 .name = "atmel_pwm",
779 .id = -1,
780 .dev = {
781 .platform_data = &pwm_mask,
782 },
783 .resource = pwm_resources,
784 .num_resources = ARRAY_SIZE(pwm_resources),
785 };
786
at91_add_device_pwm(u32 mask)787 void __init at91_add_device_pwm(u32 mask)
788 {
789 if (mask & (1 << AT91_PWM0))
790 at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM0 */
791
792 if (mask & (1 << AT91_PWM1))
793 at91_set_B_periph(AT91_PIN_PB9, 1); /* enable PWM1 */
794
795 if (mask & (1 << AT91_PWM2))
796 at91_set_B_periph(AT91_PIN_PD5, 1); /* enable PWM2 */
797
798 if (mask & (1 << AT91_PWM3))
799 at91_set_B_periph(AT91_PIN_PD8, 1); /* enable PWM3 */
800
801 pwm_mask = mask;
802
803 platform_device_register(&at91sam9rl_pwm0_device);
804 }
805 #else
at91_add_device_pwm(u32 mask)806 void __init at91_add_device_pwm(u32 mask) {}
807 #endif
808
809
810 /* --------------------------------------------------------------------
811 * SSC -- Synchronous Serial Controller
812 * -------------------------------------------------------------------- */
813
814 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
815 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
816
817 static struct resource ssc0_resources[] = {
818 [0] = {
819 .start = AT91SAM9RL_BASE_SSC0,
820 .end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
821 .flags = IORESOURCE_MEM,
822 },
823 [1] = {
824 .start = AT91SAM9RL_ID_SSC0,
825 .end = AT91SAM9RL_ID_SSC0,
826 .flags = IORESOURCE_IRQ,
827 },
828 };
829
830 static struct platform_device at91sam9rl_ssc0_device = {
831 .name = "ssc",
832 .id = 0,
833 .dev = {
834 .dma_mask = &ssc0_dmamask,
835 .coherent_dma_mask = DMA_BIT_MASK(32),
836 },
837 .resource = ssc0_resources,
838 .num_resources = ARRAY_SIZE(ssc0_resources),
839 };
840
configure_ssc0_pins(unsigned pins)841 static inline void configure_ssc0_pins(unsigned pins)
842 {
843 if (pins & ATMEL_SSC_TF)
844 at91_set_A_periph(AT91_PIN_PC0, 1);
845 if (pins & ATMEL_SSC_TK)
846 at91_set_A_periph(AT91_PIN_PC1, 1);
847 if (pins & ATMEL_SSC_TD)
848 at91_set_A_periph(AT91_PIN_PA15, 1);
849 if (pins & ATMEL_SSC_RD)
850 at91_set_A_periph(AT91_PIN_PA16, 1);
851 if (pins & ATMEL_SSC_RK)
852 at91_set_B_periph(AT91_PIN_PA10, 1);
853 if (pins & ATMEL_SSC_RF)
854 at91_set_B_periph(AT91_PIN_PA22, 1);
855 }
856
857 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
858
859 static struct resource ssc1_resources[] = {
860 [0] = {
861 .start = AT91SAM9RL_BASE_SSC1,
862 .end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
863 .flags = IORESOURCE_MEM,
864 },
865 [1] = {
866 .start = AT91SAM9RL_ID_SSC1,
867 .end = AT91SAM9RL_ID_SSC1,
868 .flags = IORESOURCE_IRQ,
869 },
870 };
871
872 static struct platform_device at91sam9rl_ssc1_device = {
873 .name = "ssc",
874 .id = 1,
875 .dev = {
876 .dma_mask = &ssc1_dmamask,
877 .coherent_dma_mask = DMA_BIT_MASK(32),
878 },
879 .resource = ssc1_resources,
880 .num_resources = ARRAY_SIZE(ssc1_resources),
881 };
882
configure_ssc1_pins(unsigned pins)883 static inline void configure_ssc1_pins(unsigned pins)
884 {
885 if (pins & ATMEL_SSC_TF)
886 at91_set_B_periph(AT91_PIN_PA29, 1);
887 if (pins & ATMEL_SSC_TK)
888 at91_set_B_periph(AT91_PIN_PA30, 1);
889 if (pins & ATMEL_SSC_TD)
890 at91_set_B_periph(AT91_PIN_PA13, 1);
891 if (pins & ATMEL_SSC_RD)
892 at91_set_B_periph(AT91_PIN_PA14, 1);
893 if (pins & ATMEL_SSC_RK)
894 at91_set_B_periph(AT91_PIN_PA9, 1);
895 if (pins & ATMEL_SSC_RF)
896 at91_set_B_periph(AT91_PIN_PA8, 1);
897 }
898
899 /*
900 * SSC controllers are accessed through library code, instead of any
901 * kind of all-singing/all-dancing driver. For example one could be
902 * used by a particular I2S audio codec's driver, while another one
903 * on the same system might be used by a custom data capture driver.
904 */
at91_add_device_ssc(unsigned id,unsigned pins)905 void __init at91_add_device_ssc(unsigned id, unsigned pins)
906 {
907 struct platform_device *pdev;
908
909 /*
910 * NOTE: caller is responsible for passing information matching
911 * "pins" to whatever will be using each particular controller.
912 */
913 switch (id) {
914 case AT91SAM9RL_ID_SSC0:
915 pdev = &at91sam9rl_ssc0_device;
916 configure_ssc0_pins(pins);
917 break;
918 case AT91SAM9RL_ID_SSC1:
919 pdev = &at91sam9rl_ssc1_device;
920 configure_ssc1_pins(pins);
921 break;
922 default:
923 return;
924 }
925
926 platform_device_register(pdev);
927 }
928
929 #else
at91_add_device_ssc(unsigned id,unsigned pins)930 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
931 #endif
932
933
934 /* --------------------------------------------------------------------
935 * UART
936 * -------------------------------------------------------------------- */
937
938 #if defined(CONFIG_SERIAL_ATMEL)
939 static struct resource dbgu_resources[] = {
940 [0] = {
941 .start = AT91SAM9RL_BASE_DBGU,
942 .end = AT91SAM9RL_BASE_DBGU + SZ_512 - 1,
943 .flags = IORESOURCE_MEM,
944 },
945 [1] = {
946 .start = AT91_ID_SYS,
947 .end = AT91_ID_SYS,
948 .flags = IORESOURCE_IRQ,
949 },
950 };
951
952 static struct atmel_uart_data dbgu_data = {
953 .use_dma_tx = 0,
954 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
955 };
956
957 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
958
959 static struct platform_device at91sam9rl_dbgu_device = {
960 .name = "atmel_usart",
961 .id = 0,
962 .dev = {
963 .dma_mask = &dbgu_dmamask,
964 .coherent_dma_mask = DMA_BIT_MASK(32),
965 .platform_data = &dbgu_data,
966 },
967 .resource = dbgu_resources,
968 .num_resources = ARRAY_SIZE(dbgu_resources),
969 };
970
configure_dbgu_pins(void)971 static inline void configure_dbgu_pins(void)
972 {
973 at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
974 at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
975 }
976
977 static struct resource uart0_resources[] = {
978 [0] = {
979 .start = AT91SAM9RL_BASE_US0,
980 .end = AT91SAM9RL_BASE_US0 + SZ_16K - 1,
981 .flags = IORESOURCE_MEM,
982 },
983 [1] = {
984 .start = AT91SAM9RL_ID_US0,
985 .end = AT91SAM9RL_ID_US0,
986 .flags = IORESOURCE_IRQ,
987 },
988 };
989
990 static struct atmel_uart_data uart0_data = {
991 .use_dma_tx = 1,
992 .use_dma_rx = 1,
993 };
994
995 static u64 uart0_dmamask = DMA_BIT_MASK(32);
996
997 static struct platform_device at91sam9rl_uart0_device = {
998 .name = "atmel_usart",
999 .id = 1,
1000 .dev = {
1001 .dma_mask = &uart0_dmamask,
1002 .coherent_dma_mask = DMA_BIT_MASK(32),
1003 .platform_data = &uart0_data,
1004 },
1005 .resource = uart0_resources,
1006 .num_resources = ARRAY_SIZE(uart0_resources),
1007 };
1008
configure_usart0_pins(unsigned pins)1009 static inline void configure_usart0_pins(unsigned pins)
1010 {
1011 at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
1012 at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
1013
1014 if (pins & ATMEL_UART_RTS)
1015 at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */
1016 if (pins & ATMEL_UART_CTS)
1017 at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */
1018 if (pins & ATMEL_UART_DSR)
1019 at91_set_A_periph(AT91_PIN_PD14, 0); /* DSR0 */
1020 if (pins & ATMEL_UART_DTR)
1021 at91_set_A_periph(AT91_PIN_PD15, 0); /* DTR0 */
1022 if (pins & ATMEL_UART_DCD)
1023 at91_set_A_periph(AT91_PIN_PD16, 0); /* DCD0 */
1024 if (pins & ATMEL_UART_RI)
1025 at91_set_A_periph(AT91_PIN_PD17, 0); /* RI0 */
1026 }
1027
1028 static struct resource uart1_resources[] = {
1029 [0] = {
1030 .start = AT91SAM9RL_BASE_US1,
1031 .end = AT91SAM9RL_BASE_US1 + SZ_16K - 1,
1032 .flags = IORESOURCE_MEM,
1033 },
1034 [1] = {
1035 .start = AT91SAM9RL_ID_US1,
1036 .end = AT91SAM9RL_ID_US1,
1037 .flags = IORESOURCE_IRQ,
1038 },
1039 };
1040
1041 static struct atmel_uart_data uart1_data = {
1042 .use_dma_tx = 1,
1043 .use_dma_rx = 1,
1044 };
1045
1046 static u64 uart1_dmamask = DMA_BIT_MASK(32);
1047
1048 static struct platform_device at91sam9rl_uart1_device = {
1049 .name = "atmel_usart",
1050 .id = 2,
1051 .dev = {
1052 .dma_mask = &uart1_dmamask,
1053 .coherent_dma_mask = DMA_BIT_MASK(32),
1054 .platform_data = &uart1_data,
1055 },
1056 .resource = uart1_resources,
1057 .num_resources = ARRAY_SIZE(uart1_resources),
1058 };
1059
configure_usart1_pins(unsigned pins)1060 static inline void configure_usart1_pins(unsigned pins)
1061 {
1062 at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
1063 at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
1064
1065 if (pins & ATMEL_UART_RTS)
1066 at91_set_B_periph(AT91_PIN_PA18, 0); /* RTS1 */
1067 if (pins & ATMEL_UART_CTS)
1068 at91_set_B_periph(AT91_PIN_PA19, 0); /* CTS1 */
1069 }
1070
1071 static struct resource uart2_resources[] = {
1072 [0] = {
1073 .start = AT91SAM9RL_BASE_US2,
1074 .end = AT91SAM9RL_BASE_US2 + SZ_16K - 1,
1075 .flags = IORESOURCE_MEM,
1076 },
1077 [1] = {
1078 .start = AT91SAM9RL_ID_US2,
1079 .end = AT91SAM9RL_ID_US2,
1080 .flags = IORESOURCE_IRQ,
1081 },
1082 };
1083
1084 static struct atmel_uart_data uart2_data = {
1085 .use_dma_tx = 1,
1086 .use_dma_rx = 1,
1087 };
1088
1089 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1090
1091 static struct platform_device at91sam9rl_uart2_device = {
1092 .name = "atmel_usart",
1093 .id = 3,
1094 .dev = {
1095 .dma_mask = &uart2_dmamask,
1096 .coherent_dma_mask = DMA_BIT_MASK(32),
1097 .platform_data = &uart2_data,
1098 },
1099 .resource = uart2_resources,
1100 .num_resources = ARRAY_SIZE(uart2_resources),
1101 };
1102
configure_usart2_pins(unsigned pins)1103 static inline void configure_usart2_pins(unsigned pins)
1104 {
1105 at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
1106 at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
1107
1108 if (pins & ATMEL_UART_RTS)
1109 at91_set_A_periph(AT91_PIN_PA29, 0); /* RTS2 */
1110 if (pins & ATMEL_UART_CTS)
1111 at91_set_A_periph(AT91_PIN_PA30, 0); /* CTS2 */
1112 }
1113
1114 static struct resource uart3_resources[] = {
1115 [0] = {
1116 .start = AT91SAM9RL_BASE_US3,
1117 .end = AT91SAM9RL_BASE_US3 + SZ_16K - 1,
1118 .flags = IORESOURCE_MEM,
1119 },
1120 [1] = {
1121 .start = AT91SAM9RL_ID_US3,
1122 .end = AT91SAM9RL_ID_US3,
1123 .flags = IORESOURCE_IRQ,
1124 },
1125 };
1126
1127 static struct atmel_uart_data uart3_data = {
1128 .use_dma_tx = 1,
1129 .use_dma_rx = 1,
1130 };
1131
1132 static u64 uart3_dmamask = DMA_BIT_MASK(32);
1133
1134 static struct platform_device at91sam9rl_uart3_device = {
1135 .name = "atmel_usart",
1136 .id = 4,
1137 .dev = {
1138 .dma_mask = &uart3_dmamask,
1139 .coherent_dma_mask = DMA_BIT_MASK(32),
1140 .platform_data = &uart3_data,
1141 },
1142 .resource = uart3_resources,
1143 .num_resources = ARRAY_SIZE(uart3_resources),
1144 };
1145
configure_usart3_pins(unsigned pins)1146 static inline void configure_usart3_pins(unsigned pins)
1147 {
1148 at91_set_A_periph(AT91_PIN_PB0, 1); /* TXD3 */
1149 at91_set_A_periph(AT91_PIN_PB1, 0); /* RXD3 */
1150
1151 if (pins & ATMEL_UART_RTS)
1152 at91_set_B_periph(AT91_PIN_PD4, 0); /* RTS3 */
1153 if (pins & ATMEL_UART_CTS)
1154 at91_set_B_periph(AT91_PIN_PD3, 0); /* CTS3 */
1155 }
1156
1157 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1158
at91_register_uart(unsigned id,unsigned portnr,unsigned pins)1159 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1160 {
1161 struct platform_device *pdev;
1162 struct atmel_uart_data *pdata;
1163
1164 switch (id) {
1165 case 0: /* DBGU */
1166 pdev = &at91sam9rl_dbgu_device;
1167 configure_dbgu_pins();
1168 break;
1169 case AT91SAM9RL_ID_US0:
1170 pdev = &at91sam9rl_uart0_device;
1171 configure_usart0_pins(pins);
1172 break;
1173 case AT91SAM9RL_ID_US1:
1174 pdev = &at91sam9rl_uart1_device;
1175 configure_usart1_pins(pins);
1176 break;
1177 case AT91SAM9RL_ID_US2:
1178 pdev = &at91sam9rl_uart2_device;
1179 configure_usart2_pins(pins);
1180 break;
1181 case AT91SAM9RL_ID_US3:
1182 pdev = &at91sam9rl_uart3_device;
1183 configure_usart3_pins(pins);
1184 break;
1185 default:
1186 return;
1187 }
1188 pdata = pdev->dev.platform_data;
1189 pdata->num = portnr; /* update to mapped ID */
1190
1191 if (portnr < ATMEL_MAX_UART)
1192 at91_uarts[portnr] = pdev;
1193 }
1194
at91_set_serial_console(unsigned portnr)1195 void __init at91_set_serial_console(unsigned portnr)
1196 {
1197 if (portnr < ATMEL_MAX_UART) {
1198 atmel_default_console_device = at91_uarts[portnr];
1199 at91sam9rl_set_console_clock(at91_uarts[portnr]->id);
1200 }
1201 }
1202
at91_add_device_serial(void)1203 void __init at91_add_device_serial(void)
1204 {
1205 int i;
1206
1207 for (i = 0; i < ATMEL_MAX_UART; i++) {
1208 if (at91_uarts[i])
1209 platform_device_register(at91_uarts[i]);
1210 }
1211
1212 if (!atmel_default_console_device)
1213 printk(KERN_INFO "AT91: No default serial console defined.\n");
1214 }
1215 #else
at91_register_uart(unsigned id,unsigned portnr,unsigned pins)1216 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
at91_set_serial_console(unsigned portnr)1217 void __init at91_set_serial_console(unsigned portnr) {}
at91_add_device_serial(void)1218 void __init at91_add_device_serial(void) {}
1219 #endif
1220
1221
1222 /* -------------------------------------------------------------------- */
1223
1224 /*
1225 * These devices are always present and don't need any board-specific
1226 * setup.
1227 */
at91_add_standard_devices(void)1228 static int __init at91_add_standard_devices(void)
1229 {
1230 at91_add_device_hdmac();
1231 at91_add_device_rtc();
1232 at91_add_device_rtt();
1233 at91_add_device_watchdog();
1234 at91_add_device_tc();
1235 return 0;
1236 }
1237
1238 arch_initcall(at91_add_standard_devices);
1239