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1 /*
2 * arch/arm/mach-at91/at91sam9263_devices.c
3 *
4 * Copyright (C) 2007 Atmel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 */
12 #include <asm/mach/arch.h>
13 #include <asm/mach/map.h>
14
15 #include <linux/dma-mapping.h>
16 #include <linux/gpio.h>
17 #include <linux/platform_device.h>
18 #include <linux/i2c-gpio.h>
19
20 #include <linux/fb.h>
21 #include <video/atmel_lcdc.h>
22
23 #include <mach/board.h>
24 #include <mach/at91sam9263.h>
25 #include <mach/at91sam9263_matrix.h>
26 #include <mach/at91_matrix.h>
27 #include <mach/at91sam9_smc.h>
28
29 #include "generic.h"
30
31
32 /* --------------------------------------------------------------------
33 * USB Host
34 * -------------------------------------------------------------------- */
35
36 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
37 static u64 ohci_dmamask = DMA_BIT_MASK(32);
38 static struct at91_usbh_data usbh_data;
39
40 static struct resource usbh_resources[] = {
41 [0] = {
42 .start = AT91SAM9263_UHP_BASE,
43 .end = AT91SAM9263_UHP_BASE + SZ_1M - 1,
44 .flags = IORESOURCE_MEM,
45 },
46 [1] = {
47 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_UHP,
48 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_UHP,
49 .flags = IORESOURCE_IRQ,
50 },
51 };
52
53 static struct platform_device at91_usbh_device = {
54 .name = "at91_ohci",
55 .id = -1,
56 .dev = {
57 .dma_mask = &ohci_dmamask,
58 .coherent_dma_mask = DMA_BIT_MASK(32),
59 .platform_data = &usbh_data,
60 },
61 .resource = usbh_resources,
62 .num_resources = ARRAY_SIZE(usbh_resources),
63 };
64
65 void __init at91_add_device_usbh(struct at91_usbh_data *data)
66 {
67 int i;
68
69 if (!data)
70 return;
71
72 /* Enable VBus control for UHP ports */
73 for (i = 0; i < data->ports; i++) {
74 if (gpio_is_valid(data->vbus_pin[i]))
75 at91_set_gpio_output(data->vbus_pin[i],
76 data->vbus_pin_active_low[i]);
77 }
78
79 /* Enable overcurrent notification */
80 for (i = 0; i < data->ports; i++) {
81 if (data->overcurrent_pin[i])
82 at91_set_gpio_input(data->overcurrent_pin[i], 1);
83 }
84
85 usbh_data = *data;
86 platform_device_register(&at91_usbh_device);
87 }
88 #else
89 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
90 #endif
91
92
93 /* --------------------------------------------------------------------
94 * USB Device (Gadget)
95 * -------------------------------------------------------------------- */
96
97 #if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
98 static struct at91_udc_data udc_data;
99
100 static struct resource udc_resources[] = {
101 [0] = {
102 .start = AT91SAM9263_BASE_UDP,
103 .end = AT91SAM9263_BASE_UDP + SZ_16K - 1,
104 .flags = IORESOURCE_MEM,
105 },
106 [1] = {
107 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_UDP,
108 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_UDP,
109 .flags = IORESOURCE_IRQ,
110 },
111 };
112
113 static struct platform_device at91_udc_device = {
114 .name = "at91_udc",
115 .id = -1,
116 .dev = {
117 .platform_data = &udc_data,
118 },
119 .resource = udc_resources,
120 .num_resources = ARRAY_SIZE(udc_resources),
121 };
122
123 void __init at91_add_device_udc(struct at91_udc_data *data)
124 {
125 if (!data)
126 return;
127
128 if (gpio_is_valid(data->vbus_pin)) {
129 at91_set_gpio_input(data->vbus_pin, 0);
130 at91_set_deglitch(data->vbus_pin, 1);
131 }
132
133 /* Pullup pin is handled internally by USB device peripheral */
134
135 udc_data = *data;
136 platform_device_register(&at91_udc_device);
137 }
138 #else
139 void __init at91_add_device_udc(struct at91_udc_data *data) {}
140 #endif
141
142
143 /* --------------------------------------------------------------------
144 * Ethernet
145 * -------------------------------------------------------------------- */
146
147 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
148 static u64 eth_dmamask = DMA_BIT_MASK(32);
149 static struct macb_platform_data eth_data;
150
151 static struct resource eth_resources[] = {
152 [0] = {
153 .start = AT91SAM9263_BASE_EMAC,
154 .end = AT91SAM9263_BASE_EMAC + SZ_16K - 1,
155 .flags = IORESOURCE_MEM,
156 },
157 [1] = {
158 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_EMAC,
159 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_EMAC,
160 .flags = IORESOURCE_IRQ,
161 },
162 };
163
164 static struct platform_device at91sam9263_eth_device = {
165 .name = "macb",
166 .id = -1,
167 .dev = {
168 .dma_mask = &eth_dmamask,
169 .coherent_dma_mask = DMA_BIT_MASK(32),
170 .platform_data = &eth_data,
171 },
172 .resource = eth_resources,
173 .num_resources = ARRAY_SIZE(eth_resources),
174 };
175
176 void __init at91_add_device_eth(struct macb_platform_data *data)
177 {
178 if (!data)
179 return;
180
181 if (gpio_is_valid(data->phy_irq_pin)) {
182 at91_set_gpio_input(data->phy_irq_pin, 0);
183 at91_set_deglitch(data->phy_irq_pin, 1);
184 }
185
186 /* Pins used for MII and RMII */
187 at91_set_A_periph(AT91_PIN_PE21, 0); /* ETXCK_EREFCK */
188 at91_set_B_periph(AT91_PIN_PC25, 0); /* ERXDV */
189 at91_set_A_periph(AT91_PIN_PE25, 0); /* ERX0 */
190 at91_set_A_periph(AT91_PIN_PE26, 0); /* ERX1 */
191 at91_set_A_periph(AT91_PIN_PE27, 0); /* ERXER */
192 at91_set_A_periph(AT91_PIN_PE28, 0); /* ETXEN */
193 at91_set_A_periph(AT91_PIN_PE23, 0); /* ETX0 */
194 at91_set_A_periph(AT91_PIN_PE24, 0); /* ETX1 */
195 at91_set_A_periph(AT91_PIN_PE30, 0); /* EMDIO */
196 at91_set_A_periph(AT91_PIN_PE29, 0); /* EMDC */
197
198 if (!data->is_rmii) {
199 at91_set_A_periph(AT91_PIN_PE22, 0); /* ECRS */
200 at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
201 at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
202 at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
203 at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
204 at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
205 at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
206 at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
207 }
208
209 eth_data = *data;
210 platform_device_register(&at91sam9263_eth_device);
211 }
212 #else
213 void __init at91_add_device_eth(struct macb_platform_data *data) {}
214 #endif
215
216
217 /* --------------------------------------------------------------------
218 * MMC / SD
219 * -------------------------------------------------------------------- */
220
221 #if IS_ENABLED(CONFIG_MMC_ATMELMCI)
222 static u64 mmc_dmamask = DMA_BIT_MASK(32);
223 static struct mci_platform_data mmc0_data, mmc1_data;
224
225 static struct resource mmc0_resources[] = {
226 [0] = {
227 .start = AT91SAM9263_BASE_MCI0,
228 .end = AT91SAM9263_BASE_MCI0 + SZ_16K - 1,
229 .flags = IORESOURCE_MEM,
230 },
231 [1] = {
232 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI0,
233 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI0,
234 .flags = IORESOURCE_IRQ,
235 },
236 };
237
238 static struct platform_device at91sam9263_mmc0_device = {
239 .name = "atmel_mci",
240 .id = 0,
241 .dev = {
242 .dma_mask = &mmc_dmamask,
243 .coherent_dma_mask = DMA_BIT_MASK(32),
244 .platform_data = &mmc0_data,
245 },
246 .resource = mmc0_resources,
247 .num_resources = ARRAY_SIZE(mmc0_resources),
248 };
249
250 static struct resource mmc1_resources[] = {
251 [0] = {
252 .start = AT91SAM9263_BASE_MCI1,
253 .end = AT91SAM9263_BASE_MCI1 + SZ_16K - 1,
254 .flags = IORESOURCE_MEM,
255 },
256 [1] = {
257 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI1,
258 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_MCI1,
259 .flags = IORESOURCE_IRQ,
260 },
261 };
262
263 static struct platform_device at91sam9263_mmc1_device = {
264 .name = "atmel_mci",
265 .id = 1,
266 .dev = {
267 .dma_mask = &mmc_dmamask,
268 .coherent_dma_mask = DMA_BIT_MASK(32),
269 .platform_data = &mmc1_data,
270 },
271 .resource = mmc1_resources,
272 .num_resources = ARRAY_SIZE(mmc1_resources),
273 };
274
275 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
276 {
277 unsigned int i;
278 unsigned int slot_count = 0;
279
280 if (!data)
281 return;
282
283 for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
284
285 if (!data->slot[i].bus_width)
286 continue;
287
288 /* input/irq */
289 if (gpio_is_valid(data->slot[i].detect_pin)) {
290 at91_set_gpio_input(data->slot[i].detect_pin,
291 1);
292 at91_set_deglitch(data->slot[i].detect_pin,
293 1);
294 }
295 if (gpio_is_valid(data->slot[i].wp_pin))
296 at91_set_gpio_input(data->slot[i].wp_pin, 1);
297
298 if (mmc_id == 0) { /* MCI0 */
299 switch (i) {
300 case 0: /* slot A */
301 /* CMD */
302 at91_set_A_periph(AT91_PIN_PA1, 1);
303 /* DAT0, maybe DAT1..DAT3 */
304 at91_set_A_periph(AT91_PIN_PA0, 1);
305 if (data->slot[i].bus_width == 4) {
306 at91_set_A_periph(AT91_PIN_PA3, 1);
307 at91_set_A_periph(AT91_PIN_PA4, 1);
308 at91_set_A_periph(AT91_PIN_PA5, 1);
309 }
310 slot_count++;
311 break;
312 case 1: /* slot B */
313 /* CMD */
314 at91_set_A_periph(AT91_PIN_PA16, 1);
315 /* DAT0, maybe DAT1..DAT3 */
316 at91_set_A_periph(AT91_PIN_PA17, 1);
317 if (data->slot[i].bus_width == 4) {
318 at91_set_A_periph(AT91_PIN_PA18, 1);
319 at91_set_A_periph(AT91_PIN_PA19, 1);
320 at91_set_A_periph(AT91_PIN_PA20, 1);
321 }
322 slot_count++;
323 break;
324 default:
325 printk(KERN_ERR
326 "AT91: SD/MMC slot %d not available\n", i);
327 break;
328 }
329 if (slot_count) {
330 /* CLK */
331 at91_set_A_periph(AT91_PIN_PA12, 0);
332
333 mmc0_data = *data;
334 platform_device_register(&at91sam9263_mmc0_device);
335 }
336 } else if (mmc_id == 1) { /* MCI1 */
337 switch (i) {
338 case 0: /* slot A */
339 /* CMD */
340 at91_set_A_periph(AT91_PIN_PA7, 1);
341 /* DAT0, maybe DAT1..DAT3 */
342 at91_set_A_periph(AT91_PIN_PA8, 1);
343 if (data->slot[i].bus_width == 4) {
344 at91_set_A_periph(AT91_PIN_PA9, 1);
345 at91_set_A_periph(AT91_PIN_PA10, 1);
346 at91_set_A_periph(AT91_PIN_PA11, 1);
347 }
348 slot_count++;
349 break;
350 case 1: /* slot B */
351 /* CMD */
352 at91_set_A_periph(AT91_PIN_PA21, 1);
353 /* DAT0, maybe DAT1..DAT3 */
354 at91_set_A_periph(AT91_PIN_PA22, 1);
355 if (data->slot[i].bus_width == 4) {
356 at91_set_A_periph(AT91_PIN_PA23, 1);
357 at91_set_A_periph(AT91_PIN_PA24, 1);
358 at91_set_A_periph(AT91_PIN_PA25, 1);
359 }
360 slot_count++;
361 break;
362 default:
363 printk(KERN_ERR
364 "AT91: SD/MMC slot %d not available\n", i);
365 break;
366 }
367 if (slot_count) {
368 /* CLK */
369 at91_set_A_periph(AT91_PIN_PA6, 0);
370
371 mmc1_data = *data;
372 platform_device_register(&at91sam9263_mmc1_device);
373 }
374 }
375 }
376 }
377 #else
378 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
379 #endif
380
381 /* --------------------------------------------------------------------
382 * Compact Flash (PCMCIA or IDE)
383 * -------------------------------------------------------------------- */
384
385 #if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
386 defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
387
388 static struct at91_cf_data cf0_data;
389
390 static struct resource cf0_resources[] = {
391 [0] = {
392 .start = AT91_CHIPSELECT_4,
393 .end = AT91_CHIPSELECT_4 + SZ_256M - 1,
394 .flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
395 }
396 };
397
398 static struct platform_device cf0_device = {
399 .id = 0,
400 .dev = {
401 .platform_data = &cf0_data,
402 },
403 .resource = cf0_resources,
404 .num_resources = ARRAY_SIZE(cf0_resources),
405 };
406
407 static struct at91_cf_data cf1_data;
408
409 static struct resource cf1_resources[] = {
410 [0] = {
411 .start = AT91_CHIPSELECT_5,
412 .end = AT91_CHIPSELECT_5 + SZ_256M - 1,
413 .flags = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
414 }
415 };
416
417 static struct platform_device cf1_device = {
418 .id = 1,
419 .dev = {
420 .platform_data = &cf1_data,
421 },
422 .resource = cf1_resources,
423 .num_resources = ARRAY_SIZE(cf1_resources),
424 };
425
426 void __init at91_add_device_cf(struct at91_cf_data *data)
427 {
428 unsigned long ebi0_csa;
429 struct platform_device *pdev;
430
431 if (!data)
432 return;
433
434 /*
435 * assign CS4 or CS5 to SMC with Compact Flash logic support,
436 * we assume SMC timings are configured by board code,
437 * except True IDE where timings are controlled by driver
438 */
439 ebi0_csa = at91_matrix_read(AT91_MATRIX_EBI0CSA);
440 switch (data->chipselect) {
441 case 4:
442 at91_set_A_periph(AT91_PIN_PD6, 0); /* EBI0_NCS4/CFCS0 */
443 ebi0_csa |= AT91_MATRIX_EBI0_CS4A_SMC_CF1;
444 cf0_data = *data;
445 pdev = &cf0_device;
446 break;
447 case 5:
448 at91_set_A_periph(AT91_PIN_PD7, 0); /* EBI0_NCS5/CFCS1 */
449 ebi0_csa |= AT91_MATRIX_EBI0_CS5A_SMC_CF2;
450 cf1_data = *data;
451 pdev = &cf1_device;
452 break;
453 default:
454 printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
455 data->chipselect);
456 return;
457 }
458 at91_matrix_write(AT91_MATRIX_EBI0CSA, ebi0_csa);
459
460 if (gpio_is_valid(data->det_pin)) {
461 at91_set_gpio_input(data->det_pin, 1);
462 at91_set_deglitch(data->det_pin, 1);
463 }
464
465 if (gpio_is_valid(data->irq_pin)) {
466 at91_set_gpio_input(data->irq_pin, 1);
467 at91_set_deglitch(data->irq_pin, 1);
468 }
469
470 if (gpio_is_valid(data->vcc_pin))
471 /* initially off */
472 at91_set_gpio_output(data->vcc_pin, 0);
473
474 /* enable EBI controlled pins */
475 at91_set_A_periph(AT91_PIN_PD5, 1); /* NWAIT */
476 at91_set_A_periph(AT91_PIN_PD8, 0); /* CFCE1 */
477 at91_set_A_periph(AT91_PIN_PD9, 0); /* CFCE2 */
478 at91_set_A_periph(AT91_PIN_PD14, 0); /* CFNRW */
479
480 pdev->name = (data->flags & AT91_CF_TRUE_IDE) ? "pata_at91" : "at91_cf";
481 platform_device_register(pdev);
482 }
483 #else
484 void __init at91_add_device_cf(struct at91_cf_data *data) {}
485 #endif
486
487 /* --------------------------------------------------------------------
488 * NAND / SmartMedia
489 * -------------------------------------------------------------------- */
490
491 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
492 static struct atmel_nand_data nand_data;
493
494 #define NAND_BASE AT91_CHIPSELECT_3
495
496 static struct resource nand_resources[] = {
497 [0] = {
498 .start = NAND_BASE,
499 .end = NAND_BASE + SZ_256M - 1,
500 .flags = IORESOURCE_MEM,
501 },
502 [1] = {
503 .start = AT91SAM9263_BASE_ECC0,
504 .end = AT91SAM9263_BASE_ECC0 + SZ_512 - 1,
505 .flags = IORESOURCE_MEM,
506 }
507 };
508
509 static struct platform_device at91sam9263_nand_device = {
510 .name = "atmel_nand",
511 .id = -1,
512 .dev = {
513 .platform_data = &nand_data,
514 },
515 .resource = nand_resources,
516 .num_resources = ARRAY_SIZE(nand_resources),
517 };
518
519 void __init at91_add_device_nand(struct atmel_nand_data *data)
520 {
521 unsigned long csa;
522
523 if (!data)
524 return;
525
526 csa = at91_matrix_read(AT91_MATRIX_EBI0CSA);
527 at91_matrix_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
528
529 /* enable pin */
530 if (gpio_is_valid(data->enable_pin))
531 at91_set_gpio_output(data->enable_pin, 1);
532
533 /* ready/busy pin */
534 if (gpio_is_valid(data->rdy_pin))
535 at91_set_gpio_input(data->rdy_pin, 1);
536
537 /* card detect pin */
538 if (gpio_is_valid(data->det_pin))
539 at91_set_gpio_input(data->det_pin, 1);
540
541 nand_data = *data;
542 platform_device_register(&at91sam9263_nand_device);
543 }
544 #else
545 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
546 #endif
547
548
549 /* --------------------------------------------------------------------
550 * TWI (i2c)
551 * -------------------------------------------------------------------- */
552
553 /*
554 * Prefer the GPIO code since the TWI controller isn't robust
555 * (gets overruns and underruns under load) and can only issue
556 * repeated STARTs in one scenario (the driver doesn't yet handle them).
557 */
558 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
559
560 static struct i2c_gpio_platform_data pdata = {
561 .sda_pin = AT91_PIN_PB4,
562 .sda_is_open_drain = 1,
563 .scl_pin = AT91_PIN_PB5,
564 .scl_is_open_drain = 1,
565 .udelay = 2, /* ~100 kHz */
566 };
567
568 static struct platform_device at91sam9263_twi_device = {
569 .name = "i2c-gpio",
570 .id = -1,
571 .dev.platform_data = &pdata,
572 };
573
574 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
575 {
576 at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */
577 at91_set_multi_drive(AT91_PIN_PB4, 1);
578
579 at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
580 at91_set_multi_drive(AT91_PIN_PB5, 1);
581
582 i2c_register_board_info(0, devices, nr_devices);
583 platform_device_register(&at91sam9263_twi_device);
584 }
585
586 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
587
588 static struct resource twi_resources[] = {
589 [0] = {
590 .start = AT91SAM9263_BASE_TWI,
591 .end = AT91SAM9263_BASE_TWI + SZ_16K - 1,
592 .flags = IORESOURCE_MEM,
593 },
594 [1] = {
595 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_TWI,
596 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_TWI,
597 .flags = IORESOURCE_IRQ,
598 },
599 };
600
601 static struct platform_device at91sam9263_twi_device = {
602 .name = "at91_i2c",
603 .id = -1,
604 .resource = twi_resources,
605 .num_resources = ARRAY_SIZE(twi_resources),
606 };
607
608 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
609 {
610 /* pins used for TWI interface */
611 at91_set_A_periph(AT91_PIN_PB4, 0); /* TWD */
612 at91_set_multi_drive(AT91_PIN_PB4, 1);
613
614 at91_set_A_periph(AT91_PIN_PB5, 0); /* TWCK */
615 at91_set_multi_drive(AT91_PIN_PB5, 1);
616
617 i2c_register_board_info(0, devices, nr_devices);
618 platform_device_register(&at91sam9263_twi_device);
619 }
620 #else
621 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
622 #endif
623
624
625 /* --------------------------------------------------------------------
626 * SPI
627 * -------------------------------------------------------------------- */
628
629 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
630 static u64 spi_dmamask = DMA_BIT_MASK(32);
631
632 static struct resource spi0_resources[] = {
633 [0] = {
634 .start = AT91SAM9263_BASE_SPI0,
635 .end = AT91SAM9263_BASE_SPI0 + SZ_16K - 1,
636 .flags = IORESOURCE_MEM,
637 },
638 [1] = {
639 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI0,
640 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI0,
641 .flags = IORESOURCE_IRQ,
642 },
643 };
644
645 static struct platform_device at91sam9263_spi0_device = {
646 .name = "atmel_spi",
647 .id = 0,
648 .dev = {
649 .dma_mask = &spi_dmamask,
650 .coherent_dma_mask = DMA_BIT_MASK(32),
651 },
652 .resource = spi0_resources,
653 .num_resources = ARRAY_SIZE(spi0_resources),
654 };
655
656 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PB11 };
657
658 static struct resource spi1_resources[] = {
659 [0] = {
660 .start = AT91SAM9263_BASE_SPI1,
661 .end = AT91SAM9263_BASE_SPI1 + SZ_16K - 1,
662 .flags = IORESOURCE_MEM,
663 },
664 [1] = {
665 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI1,
666 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_SPI1,
667 .flags = IORESOURCE_IRQ,
668 },
669 };
670
671 static struct platform_device at91sam9263_spi1_device = {
672 .name = "atmel_spi",
673 .id = 1,
674 .dev = {
675 .dma_mask = &spi_dmamask,
676 .coherent_dma_mask = DMA_BIT_MASK(32),
677 },
678 .resource = spi1_resources,
679 .num_resources = ARRAY_SIZE(spi1_resources),
680 };
681
682 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
683
684 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
685 {
686 int i;
687 unsigned long cs_pin;
688 short enable_spi0 = 0;
689 short enable_spi1 = 0;
690
691 /* Choose SPI chip-selects */
692 for (i = 0; i < nr_devices; i++) {
693 if (devices[i].controller_data)
694 cs_pin = (unsigned long) devices[i].controller_data;
695 else if (devices[i].bus_num == 0)
696 cs_pin = spi0_standard_cs[devices[i].chip_select];
697 else
698 cs_pin = spi1_standard_cs[devices[i].chip_select];
699
700 if (!gpio_is_valid(cs_pin))
701 continue;
702
703 if (devices[i].bus_num == 0)
704 enable_spi0 = 1;
705 else
706 enable_spi1 = 1;
707
708 /* enable chip-select pin */
709 at91_set_gpio_output(cs_pin, 1);
710
711 /* pass chip-select pin to driver */
712 devices[i].controller_data = (void *) cs_pin;
713 }
714
715 spi_register_board_info(devices, nr_devices);
716
717 /* Configure SPI bus(es) */
718 if (enable_spi0) {
719 at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
720 at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
721 at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
722
723 platform_device_register(&at91sam9263_spi0_device);
724 }
725 if (enable_spi1) {
726 at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
727 at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
728 at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
729
730 platform_device_register(&at91sam9263_spi1_device);
731 }
732 }
733 #else
734 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
735 #endif
736
737
738 /* --------------------------------------------------------------------
739 * AC97
740 * -------------------------------------------------------------------- */
741
742 #if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
743 static u64 ac97_dmamask = DMA_BIT_MASK(32);
744 static struct ac97c_platform_data ac97_data;
745
746 static struct resource ac97_resources[] = {
747 [0] = {
748 .start = AT91SAM9263_BASE_AC97C,
749 .end = AT91SAM9263_BASE_AC97C + SZ_16K - 1,
750 .flags = IORESOURCE_MEM,
751 },
752 [1] = {
753 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_AC97C,
754 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_AC97C,
755 .flags = IORESOURCE_IRQ,
756 },
757 };
758
759 static struct platform_device at91sam9263_ac97_device = {
760 .name = "atmel_ac97c",
761 .id = 0,
762 .dev = {
763 .dma_mask = &ac97_dmamask,
764 .coherent_dma_mask = DMA_BIT_MASK(32),
765 .platform_data = &ac97_data,
766 },
767 .resource = ac97_resources,
768 .num_resources = ARRAY_SIZE(ac97_resources),
769 };
770
771 void __init at91_add_device_ac97(struct ac97c_platform_data *data)
772 {
773 if (!data)
774 return;
775
776 at91_set_A_periph(AT91_PIN_PB0, 0); /* AC97FS */
777 at91_set_A_periph(AT91_PIN_PB1, 0); /* AC97CK */
778 at91_set_A_periph(AT91_PIN_PB2, 0); /* AC97TX */
779 at91_set_A_periph(AT91_PIN_PB3, 0); /* AC97RX */
780
781 /* reset */
782 if (gpio_is_valid(data->reset_pin))
783 at91_set_gpio_output(data->reset_pin, 0);
784
785 ac97_data = *data;
786 platform_device_register(&at91sam9263_ac97_device);
787 }
788 #else
789 void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
790 #endif
791
792 /* --------------------------------------------------------------------
793 * CAN Controller
794 * -------------------------------------------------------------------- */
795
796 #if defined(CONFIG_CAN_AT91) || defined(CONFIG_CAN_AT91_MODULE)
797 static struct resource can_resources[] = {
798 [0] = {
799 .start = AT91SAM9263_BASE_CAN,
800 .end = AT91SAM9263_BASE_CAN + SZ_16K - 1,
801 .flags = IORESOURCE_MEM,
802 },
803 [1] = {
804 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_CAN,
805 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_CAN,
806 .flags = IORESOURCE_IRQ,
807 },
808 };
809
810 static struct platform_device at91sam9263_can_device = {
811 .name = "at91_can",
812 .id = -1,
813 .resource = can_resources,
814 .num_resources = ARRAY_SIZE(can_resources),
815 };
816
817 void __init at91_add_device_can(struct at91_can_data *data)
818 {
819 at91_set_A_periph(AT91_PIN_PA13, 0); /* CANTX */
820 at91_set_A_periph(AT91_PIN_PA14, 0); /* CANRX */
821 at91sam9263_can_device.dev.platform_data = data;
822
823 platform_device_register(&at91sam9263_can_device);
824 }
825 #else
826 void __init at91_add_device_can(struct at91_can_data *data) {}
827 #endif
828
829 /* --------------------------------------------------------------------
830 * LCD Controller
831 * -------------------------------------------------------------------- */
832
833 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
834 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
835 static struct atmel_lcdfb_info lcdc_data;
836
837 static struct resource lcdc_resources[] = {
838 [0] = {
839 .start = AT91SAM9263_LCDC_BASE,
840 .end = AT91SAM9263_LCDC_BASE + SZ_4K - 1,
841 .flags = IORESOURCE_MEM,
842 },
843 [1] = {
844 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_LCDC,
845 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_LCDC,
846 .flags = IORESOURCE_IRQ,
847 },
848 };
849
850 static struct platform_device at91_lcdc_device = {
851 .name = "atmel_lcdfb",
852 .id = 0,
853 .dev = {
854 .dma_mask = &lcdc_dmamask,
855 .coherent_dma_mask = DMA_BIT_MASK(32),
856 .platform_data = &lcdc_data,
857 },
858 .resource = lcdc_resources,
859 .num_resources = ARRAY_SIZE(lcdc_resources),
860 };
861
862 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
863 {
864 if (!data)
865 return;
866
867 at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
868 at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
869 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
870 at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
871 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
872 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
873 at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
874 at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
875 at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
876 at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
877 at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
878 at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
879 at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
880 at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD13 */
881 at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
882 at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
883 at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
884 at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
885 at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
886 at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD21 */
887 at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
888 at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
889
890 lcdc_data = *data;
891 platform_device_register(&at91_lcdc_device);
892 }
893 #else
894 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
895 #endif
896
897
898 /* --------------------------------------------------------------------
899 * Image Sensor Interface
900 * -------------------------------------------------------------------- */
901
902 #if defined(CONFIG_VIDEO_AT91_ISI) || defined(CONFIG_VIDEO_AT91_ISI_MODULE)
903
904 struct resource isi_resources[] = {
905 [0] = {
906 .start = AT91SAM9263_BASE_ISI,
907 .end = AT91SAM9263_BASE_ISI + SZ_16K - 1,
908 .flags = IORESOURCE_MEM,
909 },
910 [1] = {
911 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_ISI,
912 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_ISI,
913 .flags = IORESOURCE_IRQ,
914 },
915 };
916
917 static struct platform_device at91sam9263_isi_device = {
918 .name = "at91_isi",
919 .id = -1,
920 .resource = isi_resources,
921 .num_resources = ARRAY_SIZE(isi_resources),
922 };
923
924 void __init at91_add_device_isi(struct isi_platform_data *data,
925 bool use_pck_as_mck)
926 {
927 at91_set_A_periph(AT91_PIN_PE0, 0); /* ISI_D0 */
928 at91_set_A_periph(AT91_PIN_PE1, 0); /* ISI_D1 */
929 at91_set_A_periph(AT91_PIN_PE2, 0); /* ISI_D2 */
930 at91_set_A_periph(AT91_PIN_PE3, 0); /* ISI_D3 */
931 at91_set_A_periph(AT91_PIN_PE4, 0); /* ISI_D4 */
932 at91_set_A_periph(AT91_PIN_PE5, 0); /* ISI_D5 */
933 at91_set_A_periph(AT91_PIN_PE6, 0); /* ISI_D6 */
934 at91_set_A_periph(AT91_PIN_PE7, 0); /* ISI_D7 */
935 at91_set_A_periph(AT91_PIN_PE8, 0); /* ISI_PCK */
936 at91_set_A_periph(AT91_PIN_PE9, 0); /* ISI_HSYNC */
937 at91_set_A_periph(AT91_PIN_PE10, 0); /* ISI_VSYNC */
938 at91_set_B_periph(AT91_PIN_PE12, 0); /* ISI_PD8 */
939 at91_set_B_periph(AT91_PIN_PE13, 0); /* ISI_PD9 */
940 at91_set_B_periph(AT91_PIN_PE14, 0); /* ISI_PD10 */
941 at91_set_B_periph(AT91_PIN_PE15, 0); /* ISI_PD11 */
942
943 if (use_pck_as_mck) {
944 at91_set_B_periph(AT91_PIN_PE11, 0); /* ISI_MCK (PCK3) */
945
946 /* TODO: register the PCK for ISI_MCK and set its parent */
947 }
948 }
949 #else
950 void __init at91_add_device_isi(struct isi_platform_data *data,
951 bool use_pck_as_mck) {}
952 #endif
953
954
955 /* --------------------------------------------------------------------
956 * Timer/Counter block
957 * -------------------------------------------------------------------- */
958
959 #ifdef CONFIG_ATMEL_TCLIB
960
961 static struct resource tcb_resources[] = {
962 [0] = {
963 .start = AT91SAM9263_BASE_TCB0,
964 .end = AT91SAM9263_BASE_TCB0 + SZ_16K - 1,
965 .flags = IORESOURCE_MEM,
966 },
967 [1] = {
968 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_TCB,
969 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_TCB,
970 .flags = IORESOURCE_IRQ,
971 },
972 };
973
974 static struct platform_device at91sam9263_tcb_device = {
975 .name = "atmel_tcb",
976 .id = 0,
977 .resource = tcb_resources,
978 .num_resources = ARRAY_SIZE(tcb_resources),
979 };
980
981 #if defined(CONFIG_OF)
982 static struct of_device_id tcb_ids[] = {
983 { .compatible = "atmel,at91rm9200-tcb" },
984 { /*sentinel*/ }
985 };
986 #endif
987
988 static void __init at91_add_device_tc(void)
989 {
990 #if defined(CONFIG_OF)
991 struct device_node *np;
992
993 np = of_find_matching_node(NULL, tcb_ids);
994 if (np) {
995 of_node_put(np);
996 return;
997 }
998 #endif
999
1000 platform_device_register(&at91sam9263_tcb_device);
1001 }
1002 #else
1003 static void __init at91_add_device_tc(void) { }
1004 #endif
1005
1006
1007 /* --------------------------------------------------------------------
1008 * RTT
1009 * -------------------------------------------------------------------- */
1010
1011 static struct resource rtt0_resources[] = {
1012 {
1013 .start = AT91SAM9263_BASE_RTT0,
1014 .end = AT91SAM9263_BASE_RTT0 + SZ_16 - 1,
1015 .flags = IORESOURCE_MEM,
1016 }, {
1017 .flags = IORESOURCE_MEM,
1018 }, {
1019 .flags = IORESOURCE_IRQ,
1020 }
1021 };
1022
1023 static struct platform_device at91sam9263_rtt0_device = {
1024 .name = "at91_rtt",
1025 .id = 0,
1026 .resource = rtt0_resources,
1027 };
1028
1029 static struct resource rtt1_resources[] = {
1030 {
1031 .start = AT91SAM9263_BASE_RTT1,
1032 .end = AT91SAM9263_BASE_RTT1 + SZ_16 - 1,
1033 .flags = IORESOURCE_MEM,
1034 }, {
1035 .flags = IORESOURCE_MEM,
1036 }, {
1037 .flags = IORESOURCE_IRQ,
1038 }
1039 };
1040
1041 static struct platform_device at91sam9263_rtt1_device = {
1042 .name = "at91_rtt",
1043 .id = 1,
1044 .resource = rtt1_resources,
1045 };
1046
1047 #if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
1048 static void __init at91_add_device_rtt_rtc(void)
1049 {
1050 struct platform_device *pdev;
1051 struct resource *r;
1052
1053 switch (CONFIG_RTC_DRV_AT91SAM9_RTT) {
1054 case 0:
1055 /*
1056 * The second resource is needed only for the chosen RTT:
1057 * GPBR will serve as the storage for RTC time offset
1058 */
1059 at91sam9263_rtt0_device.num_resources = 3;
1060 at91sam9263_rtt1_device.num_resources = 1;
1061 pdev = &at91sam9263_rtt0_device;
1062 r = rtt0_resources;
1063 break;
1064 case 1:
1065 at91sam9263_rtt0_device.num_resources = 1;
1066 at91sam9263_rtt1_device.num_resources = 3;
1067 pdev = &at91sam9263_rtt1_device;
1068 r = rtt1_resources;
1069 break;
1070 default:
1071 pr_err("at91sam9263: only supports 2 RTT (%d)\n",
1072 CONFIG_RTC_DRV_AT91SAM9_RTT);
1073 return;
1074 }
1075
1076 pdev->name = "rtc-at91sam9";
1077 r[1].start = AT91SAM9263_BASE_GPBR + 4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
1078 r[1].end = r[1].start + 3;
1079 r[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
1080 r[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
1081 }
1082 #else
1083 static void __init at91_add_device_rtt_rtc(void)
1084 {
1085 /* Only one resource is needed: RTT not used as RTC */
1086 at91sam9263_rtt0_device.num_resources = 1;
1087 at91sam9263_rtt1_device.num_resources = 1;
1088 }
1089 #endif
1090
1091 static void __init at91_add_device_rtt(void)
1092 {
1093 at91_add_device_rtt_rtc();
1094 platform_device_register(&at91sam9263_rtt0_device);
1095 platform_device_register(&at91sam9263_rtt1_device);
1096 }
1097
1098
1099 /* --------------------------------------------------------------------
1100 * Watchdog
1101 * -------------------------------------------------------------------- */
1102
1103 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
1104 static struct resource wdt_resources[] = {
1105 {
1106 .start = AT91SAM9263_BASE_WDT,
1107 .end = AT91SAM9263_BASE_WDT + SZ_16 - 1,
1108 .flags = IORESOURCE_MEM,
1109 }
1110 };
1111
1112 static struct platform_device at91sam9263_wdt_device = {
1113 .name = "at91_wdt",
1114 .id = -1,
1115 .resource = wdt_resources,
1116 .num_resources = ARRAY_SIZE(wdt_resources),
1117 };
1118
1119 static void __init at91_add_device_watchdog(void)
1120 {
1121 platform_device_register(&at91sam9263_wdt_device);
1122 }
1123 #else
1124 static void __init at91_add_device_watchdog(void) {}
1125 #endif
1126
1127
1128 /* --------------------------------------------------------------------
1129 * PWM
1130 * --------------------------------------------------------------------*/
1131
1132 #if defined(CONFIG_ATMEL_PWM)
1133 static u32 pwm_mask;
1134
1135 static struct resource pwm_resources[] = {
1136 [0] = {
1137 .start = AT91SAM9263_BASE_PWMC,
1138 .end = AT91SAM9263_BASE_PWMC + SZ_16K - 1,
1139 .flags = IORESOURCE_MEM,
1140 },
1141 [1] = {
1142 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_PWMC,
1143 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_PWMC,
1144 .flags = IORESOURCE_IRQ,
1145 },
1146 };
1147
1148 static struct platform_device at91sam9263_pwm0_device = {
1149 .name = "atmel_pwm",
1150 .id = -1,
1151 .dev = {
1152 .platform_data = &pwm_mask,
1153 },
1154 .resource = pwm_resources,
1155 .num_resources = ARRAY_SIZE(pwm_resources),
1156 };
1157
1158 void __init at91_add_device_pwm(u32 mask)
1159 {
1160 if (mask & (1 << AT91_PWM0))
1161 at91_set_B_periph(AT91_PIN_PB7, 1); /* enable PWM0 */
1162
1163 if (mask & (1 << AT91_PWM1))
1164 at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM1 */
1165
1166 if (mask & (1 << AT91_PWM2))
1167 at91_set_B_periph(AT91_PIN_PC29, 1); /* enable PWM2 */
1168
1169 if (mask & (1 << AT91_PWM3))
1170 at91_set_B_periph(AT91_PIN_PB29, 1); /* enable PWM3 */
1171
1172 pwm_mask = mask;
1173
1174 platform_device_register(&at91sam9263_pwm0_device);
1175 }
1176 #else
1177 void __init at91_add_device_pwm(u32 mask) {}
1178 #endif
1179
1180
1181 /* --------------------------------------------------------------------
1182 * SSC -- Synchronous Serial Controller
1183 * -------------------------------------------------------------------- */
1184
1185 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
1186 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
1187
1188 static struct resource ssc0_resources[] = {
1189 [0] = {
1190 .start = AT91SAM9263_BASE_SSC0,
1191 .end = AT91SAM9263_BASE_SSC0 + SZ_16K - 1,
1192 .flags = IORESOURCE_MEM,
1193 },
1194 [1] = {
1195 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC0,
1196 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC0,
1197 .flags = IORESOURCE_IRQ,
1198 },
1199 };
1200
1201 static struct platform_device at91sam9263_ssc0_device = {
1202 .name = "ssc",
1203 .id = 0,
1204 .dev = {
1205 .dma_mask = &ssc0_dmamask,
1206 .coherent_dma_mask = DMA_BIT_MASK(32),
1207 },
1208 .resource = ssc0_resources,
1209 .num_resources = ARRAY_SIZE(ssc0_resources),
1210 };
1211
1212 static inline void configure_ssc0_pins(unsigned pins)
1213 {
1214 if (pins & ATMEL_SSC_TF)
1215 at91_set_B_periph(AT91_PIN_PB0, 1);
1216 if (pins & ATMEL_SSC_TK)
1217 at91_set_B_periph(AT91_PIN_PB1, 1);
1218 if (pins & ATMEL_SSC_TD)
1219 at91_set_B_periph(AT91_PIN_PB2, 1);
1220 if (pins & ATMEL_SSC_RD)
1221 at91_set_B_periph(AT91_PIN_PB3, 1);
1222 if (pins & ATMEL_SSC_RK)
1223 at91_set_B_periph(AT91_PIN_PB4, 1);
1224 if (pins & ATMEL_SSC_RF)
1225 at91_set_B_periph(AT91_PIN_PB5, 1);
1226 }
1227
1228 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
1229
1230 static struct resource ssc1_resources[] = {
1231 [0] = {
1232 .start = AT91SAM9263_BASE_SSC1,
1233 .end = AT91SAM9263_BASE_SSC1 + SZ_16K - 1,
1234 .flags = IORESOURCE_MEM,
1235 },
1236 [1] = {
1237 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC1,
1238 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_SSC1,
1239 .flags = IORESOURCE_IRQ,
1240 },
1241 };
1242
1243 static struct platform_device at91sam9263_ssc1_device = {
1244 .name = "ssc",
1245 .id = 1,
1246 .dev = {
1247 .dma_mask = &ssc1_dmamask,
1248 .coherent_dma_mask = DMA_BIT_MASK(32),
1249 },
1250 .resource = ssc1_resources,
1251 .num_resources = ARRAY_SIZE(ssc1_resources),
1252 };
1253
1254 static inline void configure_ssc1_pins(unsigned pins)
1255 {
1256 if (pins & ATMEL_SSC_TF)
1257 at91_set_A_periph(AT91_PIN_PB6, 1);
1258 if (pins & ATMEL_SSC_TK)
1259 at91_set_A_periph(AT91_PIN_PB7, 1);
1260 if (pins & ATMEL_SSC_TD)
1261 at91_set_A_periph(AT91_PIN_PB8, 1);
1262 if (pins & ATMEL_SSC_RD)
1263 at91_set_A_periph(AT91_PIN_PB9, 1);
1264 if (pins & ATMEL_SSC_RK)
1265 at91_set_A_periph(AT91_PIN_PB10, 1);
1266 if (pins & ATMEL_SSC_RF)
1267 at91_set_A_periph(AT91_PIN_PB11, 1);
1268 }
1269
1270 /*
1271 * SSC controllers are accessed through library code, instead of any
1272 * kind of all-singing/all-dancing driver. For example one could be
1273 * used by a particular I2S audio codec's driver, while another one
1274 * on the same system might be used by a custom data capture driver.
1275 */
1276 void __init at91_add_device_ssc(unsigned id, unsigned pins)
1277 {
1278 struct platform_device *pdev;
1279
1280 /*
1281 * NOTE: caller is responsible for passing information matching
1282 * "pins" to whatever will be using each particular controller.
1283 */
1284 switch (id) {
1285 case AT91SAM9263_ID_SSC0:
1286 pdev = &at91sam9263_ssc0_device;
1287 configure_ssc0_pins(pins);
1288 break;
1289 case AT91SAM9263_ID_SSC1:
1290 pdev = &at91sam9263_ssc1_device;
1291 configure_ssc1_pins(pins);
1292 break;
1293 default:
1294 return;
1295 }
1296
1297 platform_device_register(pdev);
1298 }
1299
1300 #else
1301 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
1302 #endif
1303
1304
1305 /* --------------------------------------------------------------------
1306 * UART
1307 * -------------------------------------------------------------------- */
1308
1309 #if defined(CONFIG_SERIAL_ATMEL)
1310
1311 static struct resource dbgu_resources[] = {
1312 [0] = {
1313 .start = AT91SAM9263_BASE_DBGU,
1314 .end = AT91SAM9263_BASE_DBGU + SZ_512 - 1,
1315 .flags = IORESOURCE_MEM,
1316 },
1317 [1] = {
1318 .start = NR_IRQS_LEGACY + AT91_ID_SYS,
1319 .end = NR_IRQS_LEGACY + AT91_ID_SYS,
1320 .flags = IORESOURCE_IRQ,
1321 },
1322 };
1323
1324 static struct atmel_uart_data dbgu_data = {
1325 .use_dma_tx = 0,
1326 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
1327 };
1328
1329 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
1330
1331 static struct platform_device at91sam9263_dbgu_device = {
1332 .name = "atmel_usart",
1333 .id = 0,
1334 .dev = {
1335 .dma_mask = &dbgu_dmamask,
1336 .coherent_dma_mask = DMA_BIT_MASK(32),
1337 .platform_data = &dbgu_data,
1338 },
1339 .resource = dbgu_resources,
1340 .num_resources = ARRAY_SIZE(dbgu_resources),
1341 };
1342
1343 static inline void configure_dbgu_pins(void)
1344 {
1345 at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
1346 at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
1347 }
1348
1349 static struct resource uart0_resources[] = {
1350 [0] = {
1351 .start = AT91SAM9263_BASE_US0,
1352 .end = AT91SAM9263_BASE_US0 + SZ_16K - 1,
1353 .flags = IORESOURCE_MEM,
1354 },
1355 [1] = {
1356 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_US0,
1357 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_US0,
1358 .flags = IORESOURCE_IRQ,
1359 },
1360 };
1361
1362 static struct atmel_uart_data uart0_data = {
1363 .use_dma_tx = 1,
1364 .use_dma_rx = 1,
1365 };
1366
1367 static u64 uart0_dmamask = DMA_BIT_MASK(32);
1368
1369 static struct platform_device at91sam9263_uart0_device = {
1370 .name = "atmel_usart",
1371 .id = 1,
1372 .dev = {
1373 .dma_mask = &uart0_dmamask,
1374 .coherent_dma_mask = DMA_BIT_MASK(32),
1375 .platform_data = &uart0_data,
1376 },
1377 .resource = uart0_resources,
1378 .num_resources = ARRAY_SIZE(uart0_resources),
1379 };
1380
1381 static inline void configure_usart0_pins(unsigned pins)
1382 {
1383 at91_set_A_periph(AT91_PIN_PA26, 1); /* TXD0 */
1384 at91_set_A_periph(AT91_PIN_PA27, 0); /* RXD0 */
1385
1386 if (pins & ATMEL_UART_RTS)
1387 at91_set_A_periph(AT91_PIN_PA28, 0); /* RTS0 */
1388 if (pins & ATMEL_UART_CTS)
1389 at91_set_A_periph(AT91_PIN_PA29, 0); /* CTS0 */
1390 }
1391
1392 static struct resource uart1_resources[] = {
1393 [0] = {
1394 .start = AT91SAM9263_BASE_US1,
1395 .end = AT91SAM9263_BASE_US1 + SZ_16K - 1,
1396 .flags = IORESOURCE_MEM,
1397 },
1398 [1] = {
1399 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_US1,
1400 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_US1,
1401 .flags = IORESOURCE_IRQ,
1402 },
1403 };
1404
1405 static struct atmel_uart_data uart1_data = {
1406 .use_dma_tx = 1,
1407 .use_dma_rx = 1,
1408 };
1409
1410 static u64 uart1_dmamask = DMA_BIT_MASK(32);
1411
1412 static struct platform_device at91sam9263_uart1_device = {
1413 .name = "atmel_usart",
1414 .id = 2,
1415 .dev = {
1416 .dma_mask = &uart1_dmamask,
1417 .coherent_dma_mask = DMA_BIT_MASK(32),
1418 .platform_data = &uart1_data,
1419 },
1420 .resource = uart1_resources,
1421 .num_resources = ARRAY_SIZE(uart1_resources),
1422 };
1423
1424 static inline void configure_usart1_pins(unsigned pins)
1425 {
1426 at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
1427 at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
1428
1429 if (pins & ATMEL_UART_RTS)
1430 at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
1431 if (pins & ATMEL_UART_CTS)
1432 at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
1433 }
1434
1435 static struct resource uart2_resources[] = {
1436 [0] = {
1437 .start = AT91SAM9263_BASE_US2,
1438 .end = AT91SAM9263_BASE_US2 + SZ_16K - 1,
1439 .flags = IORESOURCE_MEM,
1440 },
1441 [1] = {
1442 .start = NR_IRQS_LEGACY + AT91SAM9263_ID_US2,
1443 .end = NR_IRQS_LEGACY + AT91SAM9263_ID_US2,
1444 .flags = IORESOURCE_IRQ,
1445 },
1446 };
1447
1448 static struct atmel_uart_data uart2_data = {
1449 .use_dma_tx = 1,
1450 .use_dma_rx = 1,
1451 };
1452
1453 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1454
1455 static struct platform_device at91sam9263_uart2_device = {
1456 .name = "atmel_usart",
1457 .id = 3,
1458 .dev = {
1459 .dma_mask = &uart2_dmamask,
1460 .coherent_dma_mask = DMA_BIT_MASK(32),
1461 .platform_data = &uart2_data,
1462 },
1463 .resource = uart2_resources,
1464 .num_resources = ARRAY_SIZE(uart2_resources),
1465 };
1466
1467 static inline void configure_usart2_pins(unsigned pins)
1468 {
1469 at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
1470 at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
1471
1472 if (pins & ATMEL_UART_RTS)
1473 at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
1474 if (pins & ATMEL_UART_CTS)
1475 at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
1476 }
1477
1478 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1479
1480 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1481 {
1482 struct platform_device *pdev;
1483 struct atmel_uart_data *pdata;
1484
1485 switch (id) {
1486 case 0: /* DBGU */
1487 pdev = &at91sam9263_dbgu_device;
1488 configure_dbgu_pins();
1489 break;
1490 case AT91SAM9263_ID_US0:
1491 pdev = &at91sam9263_uart0_device;
1492 configure_usart0_pins(pins);
1493 break;
1494 case AT91SAM9263_ID_US1:
1495 pdev = &at91sam9263_uart1_device;
1496 configure_usart1_pins(pins);
1497 break;
1498 case AT91SAM9263_ID_US2:
1499 pdev = &at91sam9263_uart2_device;
1500 configure_usart2_pins(pins);
1501 break;
1502 default:
1503 return;
1504 }
1505 pdata = pdev->dev.platform_data;
1506 pdata->num = portnr; /* update to mapped ID */
1507
1508 if (portnr < ATMEL_MAX_UART)
1509 at91_uarts[portnr] = pdev;
1510 }
1511
1512 void __init at91_add_device_serial(void)
1513 {
1514 int i;
1515
1516 for (i = 0; i < ATMEL_MAX_UART; i++) {
1517 if (at91_uarts[i])
1518 platform_device_register(at91_uarts[i]);
1519 }
1520 }
1521 #else
1522 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1523 void __init at91_add_device_serial(void) {}
1524 #endif
1525
1526
1527 /* -------------------------------------------------------------------- */
1528 /*
1529 * These devices are always present and don't need any board-specific
1530 * setup.
1531 */
1532 static int __init at91_add_standard_devices(void)
1533 {
1534 if (of_have_populated_dt())
1535 return 0;
1536
1537 at91_add_device_rtt();
1538 at91_add_device_watchdog();
1539 at91_add_device_tc();
1540 return 0;
1541 }
1542
1543 arch_initcall(at91_add_standard_devices);
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