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Merge branch 'linux-next' of git://git.infradead.org/~dedekind/ubi-2.6
[mirror_ubuntu-artful-kernel.git] / arch / arm / mach-at91 / at91cap9_devices.c
1 /*
2 * arch/arm/mach-at91/at91cap9_devices.c
3 *
4 * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
5 * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
6 * Copyright (C) 2007 Atmel Corporation.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 */
14 #include <asm/mach/arch.h>
15 #include <asm/mach/map.h>
16
17 #include <linux/dma-mapping.h>
18 #include <linux/platform_device.h>
19 #include <linux/i2c-gpio.h>
20
21 #include <video/atmel_lcdc.h>
22
23 #include <asm/arch/board.h>
24 #include <asm/arch/gpio.h>
25 #include <asm/arch/at91cap9.h>
26 #include <asm/arch/at91cap9_matrix.h>
27 #include <asm/arch/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 = AT91CAP9_UHP_BASE,
43 .end = AT91CAP9_UHP_BASE + SZ_1M - 1,
44 .flags = IORESOURCE_MEM,
45 },
46 [1] = {
47 .start = AT91CAP9_ID_UHP,
48 .end = AT91CAP9_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 (data->vbus_pin[i])
75 at91_set_gpio_output(data->vbus_pin[i], 0);
76 }
77
78 usbh_data = *data;
79 platform_device_register(&at91_usbh_device);
80 }
81 #else
82 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
83 #endif
84
85
86 /* --------------------------------------------------------------------
87 * USB HS Device (Gadget)
88 * -------------------------------------------------------------------- */
89
90 #if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
91
92 static struct resource usba_udc_resources[] = {
93 [0] = {
94 .start = AT91CAP9_UDPHS_FIFO,
95 .end = AT91CAP9_UDPHS_FIFO + SZ_512K - 1,
96 .flags = IORESOURCE_MEM,
97 },
98 [1] = {
99 .start = AT91CAP9_BASE_UDPHS,
100 .end = AT91CAP9_BASE_UDPHS + SZ_1K - 1,
101 .flags = IORESOURCE_MEM,
102 },
103 [2] = {
104 .start = AT91CAP9_ID_UDPHS,
105 .end = AT91CAP9_ID_UDPHS,
106 .flags = IORESOURCE_IRQ,
107 },
108 };
109
110 #define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
111 [idx] = { \
112 .name = nam, \
113 .index = idx, \
114 .fifo_size = maxpkt, \
115 .nr_banks = maxbk, \
116 .can_dma = dma, \
117 .can_isoc = isoc, \
118 }
119
120 static struct usba_ep_data usba_udc_ep[] = {
121 EP("ep0", 0, 64, 1, 0, 0),
122 EP("ep1", 1, 1024, 3, 1, 1),
123 EP("ep2", 2, 1024, 3, 1, 1),
124 EP("ep3", 3, 1024, 2, 1, 1),
125 EP("ep4", 4, 1024, 2, 1, 1),
126 EP("ep5", 5, 1024, 2, 1, 0),
127 EP("ep6", 6, 1024, 2, 1, 0),
128 EP("ep7", 7, 1024, 2, 0, 0),
129 };
130
131 #undef EP
132
133 /*
134 * pdata doesn't have room for any endpoints, so we need to
135 * append room for the ones we need right after it.
136 */
137 static struct {
138 struct usba_platform_data pdata;
139 struct usba_ep_data ep[8];
140 } usba_udc_data;
141
142 static struct platform_device at91_usba_udc_device = {
143 .name = "atmel_usba_udc",
144 .id = -1,
145 .dev = {
146 .platform_data = &usba_udc_data.pdata,
147 },
148 .resource = usba_udc_resources,
149 .num_resources = ARRAY_SIZE(usba_udc_resources),
150 };
151
152 void __init at91_add_device_usba(struct usba_platform_data *data)
153 {
154 at91_sys_write(AT91_MATRIX_UDPHS, AT91_MATRIX_SELECT_UDPHS |
155 AT91_MATRIX_UDPHS_BYPASS_LOCK);
156
157 /*
158 * Invalid pins are 0 on AT91, but the usba driver is shared
159 * with AVR32, which use negative values instead. Once/if
160 * gpio_is_valid() is ported to AT91, revisit this code.
161 */
162 usba_udc_data.pdata.vbus_pin = -EINVAL;
163 usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
164 memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));;
165
166 if (data && data->vbus_pin > 0) {
167 at91_set_gpio_input(data->vbus_pin, 0);
168 at91_set_deglitch(data->vbus_pin, 1);
169 usba_udc_data.pdata.vbus_pin = data->vbus_pin;
170 }
171
172 /* Pullup pin is handled internally by USB device peripheral */
173
174 /* Clocks */
175 at91_clock_associate("utmi_clk", &at91_usba_udc_device.dev, "hclk");
176 at91_clock_associate("udphs_clk", &at91_usba_udc_device.dev, "pclk");
177
178 platform_device_register(&at91_usba_udc_device);
179 }
180 #else
181 void __init at91_add_device_usba(struct usba_platform_data *data) {}
182 #endif
183
184
185 /* --------------------------------------------------------------------
186 * Ethernet
187 * -------------------------------------------------------------------- */
188
189 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
190 static u64 eth_dmamask = DMA_BIT_MASK(32);
191 static struct at91_eth_data eth_data;
192
193 static struct resource eth_resources[] = {
194 [0] = {
195 .start = AT91CAP9_BASE_EMAC,
196 .end = AT91CAP9_BASE_EMAC + SZ_16K - 1,
197 .flags = IORESOURCE_MEM,
198 },
199 [1] = {
200 .start = AT91CAP9_ID_EMAC,
201 .end = AT91CAP9_ID_EMAC,
202 .flags = IORESOURCE_IRQ,
203 },
204 };
205
206 static struct platform_device at91cap9_eth_device = {
207 .name = "macb",
208 .id = -1,
209 .dev = {
210 .dma_mask = &eth_dmamask,
211 .coherent_dma_mask = DMA_BIT_MASK(32),
212 .platform_data = &eth_data,
213 },
214 .resource = eth_resources,
215 .num_resources = ARRAY_SIZE(eth_resources),
216 };
217
218 void __init at91_add_device_eth(struct at91_eth_data *data)
219 {
220 if (!data)
221 return;
222
223 if (data->phy_irq_pin) {
224 at91_set_gpio_input(data->phy_irq_pin, 0);
225 at91_set_deglitch(data->phy_irq_pin, 1);
226 }
227
228 /* Pins used for MII and RMII */
229 at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */
230 at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
231 at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
232 at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
233 at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
234 at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
235 at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
236 at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
237 at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
238 at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
239
240 if (!data->is_rmii) {
241 at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */
242 at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
243 at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
244 at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
245 at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
246 at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
247 at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
248 at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
249 }
250
251 eth_data = *data;
252 platform_device_register(&at91cap9_eth_device);
253 }
254 #else
255 void __init at91_add_device_eth(struct at91_eth_data *data) {}
256 #endif
257
258
259 /* --------------------------------------------------------------------
260 * MMC / SD
261 * -------------------------------------------------------------------- */
262
263 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
264 static u64 mmc_dmamask = DMA_BIT_MASK(32);
265 static struct at91_mmc_data mmc0_data, mmc1_data;
266
267 static struct resource mmc0_resources[] = {
268 [0] = {
269 .start = AT91CAP9_BASE_MCI0,
270 .end = AT91CAP9_BASE_MCI0 + SZ_16K - 1,
271 .flags = IORESOURCE_MEM,
272 },
273 [1] = {
274 .start = AT91CAP9_ID_MCI0,
275 .end = AT91CAP9_ID_MCI0,
276 .flags = IORESOURCE_IRQ,
277 },
278 };
279
280 static struct platform_device at91cap9_mmc0_device = {
281 .name = "at91_mci",
282 .id = 0,
283 .dev = {
284 .dma_mask = &mmc_dmamask,
285 .coherent_dma_mask = DMA_BIT_MASK(32),
286 .platform_data = &mmc0_data,
287 },
288 .resource = mmc0_resources,
289 .num_resources = ARRAY_SIZE(mmc0_resources),
290 };
291
292 static struct resource mmc1_resources[] = {
293 [0] = {
294 .start = AT91CAP9_BASE_MCI1,
295 .end = AT91CAP9_BASE_MCI1 + SZ_16K - 1,
296 .flags = IORESOURCE_MEM,
297 },
298 [1] = {
299 .start = AT91CAP9_ID_MCI1,
300 .end = AT91CAP9_ID_MCI1,
301 .flags = IORESOURCE_IRQ,
302 },
303 };
304
305 static struct platform_device at91cap9_mmc1_device = {
306 .name = "at91_mci",
307 .id = 1,
308 .dev = {
309 .dma_mask = &mmc_dmamask,
310 .coherent_dma_mask = DMA_BIT_MASK(32),
311 .platform_data = &mmc1_data,
312 },
313 .resource = mmc1_resources,
314 .num_resources = ARRAY_SIZE(mmc1_resources),
315 };
316
317 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
318 {
319 if (!data)
320 return;
321
322 /* input/irq */
323 if (data->det_pin) {
324 at91_set_gpio_input(data->det_pin, 1);
325 at91_set_deglitch(data->det_pin, 1);
326 }
327 if (data->wp_pin)
328 at91_set_gpio_input(data->wp_pin, 1);
329 if (data->vcc_pin)
330 at91_set_gpio_output(data->vcc_pin, 0);
331
332 if (mmc_id == 0) { /* MCI0 */
333 /* CLK */
334 at91_set_A_periph(AT91_PIN_PA2, 0);
335
336 /* CMD */
337 at91_set_A_periph(AT91_PIN_PA1, 1);
338
339 /* DAT0, maybe DAT1..DAT3 */
340 at91_set_A_periph(AT91_PIN_PA0, 1);
341 if (data->wire4) {
342 at91_set_A_periph(AT91_PIN_PA3, 1);
343 at91_set_A_periph(AT91_PIN_PA4, 1);
344 at91_set_A_periph(AT91_PIN_PA5, 1);
345 }
346
347 mmc0_data = *data;
348 at91_clock_associate("mci0_clk", &at91cap9_mmc0_device.dev, "mci_clk");
349 platform_device_register(&at91cap9_mmc0_device);
350 } else { /* MCI1 */
351 /* CLK */
352 at91_set_A_periph(AT91_PIN_PA16, 0);
353
354 /* CMD */
355 at91_set_A_periph(AT91_PIN_PA17, 1);
356
357 /* DAT0, maybe DAT1..DAT3 */
358 at91_set_A_periph(AT91_PIN_PA18, 1);
359 if (data->wire4) {
360 at91_set_A_periph(AT91_PIN_PA19, 1);
361 at91_set_A_periph(AT91_PIN_PA20, 1);
362 at91_set_A_periph(AT91_PIN_PA21, 1);
363 }
364
365 mmc1_data = *data;
366 at91_clock_associate("mci1_clk", &at91cap9_mmc1_device.dev, "mci_clk");
367 platform_device_register(&at91cap9_mmc1_device);
368 }
369 }
370 #else
371 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
372 #endif
373
374
375 /* --------------------------------------------------------------------
376 * NAND / SmartMedia
377 * -------------------------------------------------------------------- */
378
379 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
380 static struct atmel_nand_data nand_data;
381
382 #define NAND_BASE AT91_CHIPSELECT_3
383
384 static struct resource nand_resources[] = {
385 [0] = {
386 .start = NAND_BASE,
387 .end = NAND_BASE + SZ_256M - 1,
388 .flags = IORESOURCE_MEM,
389 },
390 [1] = {
391 .start = AT91_BASE_SYS + AT91_ECC,
392 .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
393 .flags = IORESOURCE_MEM,
394 }
395 };
396
397 static struct platform_device at91cap9_nand_device = {
398 .name = "atmel_nand",
399 .id = -1,
400 .dev = {
401 .platform_data = &nand_data,
402 },
403 .resource = nand_resources,
404 .num_resources = ARRAY_SIZE(nand_resources),
405 };
406
407 void __init at91_add_device_nand(struct atmel_nand_data *data)
408 {
409 unsigned long csa, mode;
410
411 if (!data)
412 return;
413
414 csa = at91_sys_read(AT91_MATRIX_EBICSA);
415 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
416
417 /* set the bus interface characteristics */
418 at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1)
419 | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
420
421 at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6)
422 | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
423
424 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
425
426 if (data->bus_width_16)
427 mode = AT91_SMC_DBW_16;
428 else
429 mode = AT91_SMC_DBW_8;
430 at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1));
431
432 /* enable pin */
433 if (data->enable_pin)
434 at91_set_gpio_output(data->enable_pin, 1);
435
436 /* ready/busy pin */
437 if (data->rdy_pin)
438 at91_set_gpio_input(data->rdy_pin, 1);
439
440 /* card detect pin */
441 if (data->det_pin)
442 at91_set_gpio_input(data->det_pin, 1);
443
444 nand_data = *data;
445 platform_device_register(&at91cap9_nand_device);
446 }
447 #else
448 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
449 #endif
450
451
452 /* --------------------------------------------------------------------
453 * TWI (i2c)
454 * -------------------------------------------------------------------- */
455
456 /*
457 * Prefer the GPIO code since the TWI controller isn't robust
458 * (gets overruns and underruns under load) and can only issue
459 * repeated STARTs in one scenario (the driver doesn't yet handle them).
460 */
461 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
462
463 static struct i2c_gpio_platform_data pdata = {
464 .sda_pin = AT91_PIN_PB4,
465 .sda_is_open_drain = 1,
466 .scl_pin = AT91_PIN_PB5,
467 .scl_is_open_drain = 1,
468 .udelay = 2, /* ~100 kHz */
469 };
470
471 static struct platform_device at91cap9_twi_device = {
472 .name = "i2c-gpio",
473 .id = -1,
474 .dev.platform_data = &pdata,
475 };
476
477 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
478 {
479 at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */
480 at91_set_multi_drive(AT91_PIN_PB4, 1);
481
482 at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
483 at91_set_multi_drive(AT91_PIN_PB5, 1);
484
485 i2c_register_board_info(0, devices, nr_devices);
486 platform_device_register(&at91cap9_twi_device);
487 }
488
489 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
490
491 static struct resource twi_resources[] = {
492 [0] = {
493 .start = AT91CAP9_BASE_TWI,
494 .end = AT91CAP9_BASE_TWI + SZ_16K - 1,
495 .flags = IORESOURCE_MEM,
496 },
497 [1] = {
498 .start = AT91CAP9_ID_TWI,
499 .end = AT91CAP9_ID_TWI,
500 .flags = IORESOURCE_IRQ,
501 },
502 };
503
504 static struct platform_device at91cap9_twi_device = {
505 .name = "at91_i2c",
506 .id = -1,
507 .resource = twi_resources,
508 .num_resources = ARRAY_SIZE(twi_resources),
509 };
510
511 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
512 {
513 /* pins used for TWI interface */
514 at91_set_B_periph(AT91_PIN_PB4, 0); /* TWD */
515 at91_set_multi_drive(AT91_PIN_PB4, 1);
516
517 at91_set_B_periph(AT91_PIN_PB5, 0); /* TWCK */
518 at91_set_multi_drive(AT91_PIN_PB5, 1);
519
520 i2c_register_board_info(0, devices, nr_devices);
521 platform_device_register(&at91cap9_twi_device);
522 }
523 #else
524 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
525 #endif
526
527 /* --------------------------------------------------------------------
528 * SPI
529 * -------------------------------------------------------------------- */
530
531 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
532 static u64 spi_dmamask = DMA_BIT_MASK(32);
533
534 static struct resource spi0_resources[] = {
535 [0] = {
536 .start = AT91CAP9_BASE_SPI0,
537 .end = AT91CAP9_BASE_SPI0 + SZ_16K - 1,
538 .flags = IORESOURCE_MEM,
539 },
540 [1] = {
541 .start = AT91CAP9_ID_SPI0,
542 .end = AT91CAP9_ID_SPI0,
543 .flags = IORESOURCE_IRQ,
544 },
545 };
546
547 static struct platform_device at91cap9_spi0_device = {
548 .name = "atmel_spi",
549 .id = 0,
550 .dev = {
551 .dma_mask = &spi_dmamask,
552 .coherent_dma_mask = DMA_BIT_MASK(32),
553 },
554 .resource = spi0_resources,
555 .num_resources = ARRAY_SIZE(spi0_resources),
556 };
557
558 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PD0, AT91_PIN_PD1 };
559
560 static struct resource spi1_resources[] = {
561 [0] = {
562 .start = AT91CAP9_BASE_SPI1,
563 .end = AT91CAP9_BASE_SPI1 + SZ_16K - 1,
564 .flags = IORESOURCE_MEM,
565 },
566 [1] = {
567 .start = AT91CAP9_ID_SPI1,
568 .end = AT91CAP9_ID_SPI1,
569 .flags = IORESOURCE_IRQ,
570 },
571 };
572
573 static struct platform_device at91cap9_spi1_device = {
574 .name = "atmel_spi",
575 .id = 1,
576 .dev = {
577 .dma_mask = &spi_dmamask,
578 .coherent_dma_mask = DMA_BIT_MASK(32),
579 },
580 .resource = spi1_resources,
581 .num_resources = ARRAY_SIZE(spi1_resources),
582 };
583
584 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
585
586 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
587 {
588 int i;
589 unsigned long cs_pin;
590 short enable_spi0 = 0;
591 short enable_spi1 = 0;
592
593 /* Choose SPI chip-selects */
594 for (i = 0; i < nr_devices; i++) {
595 if (devices[i].controller_data)
596 cs_pin = (unsigned long) devices[i].controller_data;
597 else if (devices[i].bus_num == 0)
598 cs_pin = spi0_standard_cs[devices[i].chip_select];
599 else
600 cs_pin = spi1_standard_cs[devices[i].chip_select];
601
602 if (devices[i].bus_num == 0)
603 enable_spi0 = 1;
604 else
605 enable_spi1 = 1;
606
607 /* enable chip-select pin */
608 at91_set_gpio_output(cs_pin, 1);
609
610 /* pass chip-select pin to driver */
611 devices[i].controller_data = (void *) cs_pin;
612 }
613
614 spi_register_board_info(devices, nr_devices);
615
616 /* Configure SPI bus(es) */
617 if (enable_spi0) {
618 at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
619 at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
620 at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
621
622 at91_clock_associate("spi0_clk", &at91cap9_spi0_device.dev, "spi_clk");
623 platform_device_register(&at91cap9_spi0_device);
624 }
625 if (enable_spi1) {
626 at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
627 at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
628 at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
629
630 at91_clock_associate("spi1_clk", &at91cap9_spi1_device.dev, "spi_clk");
631 platform_device_register(&at91cap9_spi1_device);
632 }
633 }
634 #else
635 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
636 #endif
637
638
639 /* --------------------------------------------------------------------
640 * Timer/Counter block
641 * -------------------------------------------------------------------- */
642
643 #ifdef CONFIG_ATMEL_TCLIB
644
645 static struct resource tcb_resources[] = {
646 [0] = {
647 .start = AT91CAP9_BASE_TCB0,
648 .end = AT91CAP9_BASE_TCB0 + SZ_16K - 1,
649 .flags = IORESOURCE_MEM,
650 },
651 [1] = {
652 .start = AT91CAP9_ID_TCB,
653 .end = AT91CAP9_ID_TCB,
654 .flags = IORESOURCE_IRQ,
655 },
656 };
657
658 static struct platform_device at91cap9_tcb_device = {
659 .name = "atmel_tcb",
660 .id = 0,
661 .resource = tcb_resources,
662 .num_resources = ARRAY_SIZE(tcb_resources),
663 };
664
665 static void __init at91_add_device_tc(void)
666 {
667 /* this chip has one clock and irq for all three TC channels */
668 at91_clock_associate("tcb_clk", &at91cap9_tcb_device.dev, "t0_clk");
669 platform_device_register(&at91cap9_tcb_device);
670 }
671 #else
672 static void __init at91_add_device_tc(void) { }
673 #endif
674
675
676 /* --------------------------------------------------------------------
677 * RTT
678 * -------------------------------------------------------------------- */
679
680 static struct resource rtt_resources[] = {
681 {
682 .start = AT91_BASE_SYS + AT91_RTT,
683 .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
684 .flags = IORESOURCE_MEM,
685 }
686 };
687
688 static struct platform_device at91cap9_rtt_device = {
689 .name = "at91_rtt",
690 .id = 0,
691 .resource = rtt_resources,
692 .num_resources = ARRAY_SIZE(rtt_resources),
693 };
694
695 static void __init at91_add_device_rtt(void)
696 {
697 platform_device_register(&at91cap9_rtt_device);
698 }
699
700
701 /* --------------------------------------------------------------------
702 * Watchdog
703 * -------------------------------------------------------------------- */
704
705 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
706 static struct platform_device at91cap9_wdt_device = {
707 .name = "at91_wdt",
708 .id = -1,
709 .num_resources = 0,
710 };
711
712 static void __init at91_add_device_watchdog(void)
713 {
714 platform_device_register(&at91cap9_wdt_device);
715 }
716 #else
717 static void __init at91_add_device_watchdog(void) {}
718 #endif
719
720
721 /* --------------------------------------------------------------------
722 * AC97
723 * -------------------------------------------------------------------- */
724
725 #if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE)
726 static u64 ac97_dmamask = DMA_BIT_MASK(32);
727 static struct atmel_ac97_data ac97_data;
728
729 static struct resource ac97_resources[] = {
730 [0] = {
731 .start = AT91CAP9_BASE_AC97C,
732 .end = AT91CAP9_BASE_AC97C + SZ_16K - 1,
733 .flags = IORESOURCE_MEM,
734 },
735 [1] = {
736 .start = AT91CAP9_ID_AC97C,
737 .end = AT91CAP9_ID_AC97C,
738 .flags = IORESOURCE_IRQ,
739 },
740 };
741
742 static struct platform_device at91cap9_ac97_device = {
743 .name = "ac97c",
744 .id = 1,
745 .dev = {
746 .dma_mask = &ac97_dmamask,
747 .coherent_dma_mask = DMA_BIT_MASK(32),
748 .platform_data = &ac97_data,
749 },
750 .resource = ac97_resources,
751 .num_resources = ARRAY_SIZE(ac97_resources),
752 };
753
754 void __init at91_add_device_ac97(struct atmel_ac97_data *data)
755 {
756 if (!data)
757 return;
758
759 at91_set_A_periph(AT91_PIN_PA6, 0); /* AC97FS */
760 at91_set_A_periph(AT91_PIN_PA7, 0); /* AC97CK */
761 at91_set_A_periph(AT91_PIN_PA8, 0); /* AC97TX */
762 at91_set_A_periph(AT91_PIN_PA9, 0); /* AC97RX */
763
764 /* reset */
765 if (data->reset_pin)
766 at91_set_gpio_output(data->reset_pin, 0);
767
768 ac97_data = *data;
769 platform_device_register(&at91cap9_ac97_device);
770 }
771 #else
772 void __init at91_add_device_ac97(struct atmel_ac97_data *data) {}
773 #endif
774
775
776 /* --------------------------------------------------------------------
777 * LCD Controller
778 * -------------------------------------------------------------------- */
779
780 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
781 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
782 static struct atmel_lcdfb_info lcdc_data;
783
784 static struct resource lcdc_resources[] = {
785 [0] = {
786 .start = AT91CAP9_LCDC_BASE,
787 .end = AT91CAP9_LCDC_BASE + SZ_4K - 1,
788 .flags = IORESOURCE_MEM,
789 },
790 [1] = {
791 .start = AT91CAP9_ID_LCDC,
792 .end = AT91CAP9_ID_LCDC,
793 .flags = IORESOURCE_IRQ,
794 },
795 };
796
797 static struct platform_device at91_lcdc_device = {
798 .name = "atmel_lcdfb",
799 .id = 0,
800 .dev = {
801 .dma_mask = &lcdc_dmamask,
802 .coherent_dma_mask = DMA_BIT_MASK(32),
803 .platform_data = &lcdc_data,
804 },
805 .resource = lcdc_resources,
806 .num_resources = ARRAY_SIZE(lcdc_resources),
807 };
808
809 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
810 {
811 if (!data)
812 return;
813
814 at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
815 at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
816 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
817 at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
818 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
819 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
820 at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
821 at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
822 at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
823 at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
824 at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
825 at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
826 at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
827 at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */
828 at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
829 at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
830 at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
831 at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
832 at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
833 at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */
834 at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
835 at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
836
837 lcdc_data = *data;
838 platform_device_register(&at91_lcdc_device);
839 }
840 #else
841 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
842 #endif
843
844
845 /* --------------------------------------------------------------------
846 * SSC -- Synchronous Serial Controller
847 * -------------------------------------------------------------------- */
848
849 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
850 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
851
852 static struct resource ssc0_resources[] = {
853 [0] = {
854 .start = AT91CAP9_BASE_SSC0,
855 .end = AT91CAP9_BASE_SSC0 + SZ_16K - 1,
856 .flags = IORESOURCE_MEM,
857 },
858 [1] = {
859 .start = AT91CAP9_ID_SSC0,
860 .end = AT91CAP9_ID_SSC0,
861 .flags = IORESOURCE_IRQ,
862 },
863 };
864
865 static struct platform_device at91cap9_ssc0_device = {
866 .name = "ssc",
867 .id = 0,
868 .dev = {
869 .dma_mask = &ssc0_dmamask,
870 .coherent_dma_mask = DMA_BIT_MASK(32),
871 },
872 .resource = ssc0_resources,
873 .num_resources = ARRAY_SIZE(ssc0_resources),
874 };
875
876 static inline void configure_ssc0_pins(unsigned pins)
877 {
878 if (pins & ATMEL_SSC_TF)
879 at91_set_A_periph(AT91_PIN_PB0, 1);
880 if (pins & ATMEL_SSC_TK)
881 at91_set_A_periph(AT91_PIN_PB1, 1);
882 if (pins & ATMEL_SSC_TD)
883 at91_set_A_periph(AT91_PIN_PB2, 1);
884 if (pins & ATMEL_SSC_RD)
885 at91_set_A_periph(AT91_PIN_PB3, 1);
886 if (pins & ATMEL_SSC_RK)
887 at91_set_A_periph(AT91_PIN_PB4, 1);
888 if (pins & ATMEL_SSC_RF)
889 at91_set_A_periph(AT91_PIN_PB5, 1);
890 }
891
892 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
893
894 static struct resource ssc1_resources[] = {
895 [0] = {
896 .start = AT91CAP9_BASE_SSC1,
897 .end = AT91CAP9_BASE_SSC1 + SZ_16K - 1,
898 .flags = IORESOURCE_MEM,
899 },
900 [1] = {
901 .start = AT91CAP9_ID_SSC1,
902 .end = AT91CAP9_ID_SSC1,
903 .flags = IORESOURCE_IRQ,
904 },
905 };
906
907 static struct platform_device at91cap9_ssc1_device = {
908 .name = "ssc",
909 .id = 1,
910 .dev = {
911 .dma_mask = &ssc1_dmamask,
912 .coherent_dma_mask = DMA_BIT_MASK(32),
913 },
914 .resource = ssc1_resources,
915 .num_resources = ARRAY_SIZE(ssc1_resources),
916 };
917
918 static inline void configure_ssc1_pins(unsigned pins)
919 {
920 if (pins & ATMEL_SSC_TF)
921 at91_set_A_periph(AT91_PIN_PB6, 1);
922 if (pins & ATMEL_SSC_TK)
923 at91_set_A_periph(AT91_PIN_PB7, 1);
924 if (pins & ATMEL_SSC_TD)
925 at91_set_A_periph(AT91_PIN_PB8, 1);
926 if (pins & ATMEL_SSC_RD)
927 at91_set_A_periph(AT91_PIN_PB9, 1);
928 if (pins & ATMEL_SSC_RK)
929 at91_set_A_periph(AT91_PIN_PB10, 1);
930 if (pins & ATMEL_SSC_RF)
931 at91_set_A_periph(AT91_PIN_PB11, 1);
932 }
933
934 /*
935 * SSC controllers are accessed through library code, instead of any
936 * kind of all-singing/all-dancing driver. For example one could be
937 * used by a particular I2S audio codec's driver, while another one
938 * on the same system might be used by a custom data capture driver.
939 */
940 void __init at91_add_device_ssc(unsigned id, unsigned pins)
941 {
942 struct platform_device *pdev;
943
944 /*
945 * NOTE: caller is responsible for passing information matching
946 * "pins" to whatever will be using each particular controller.
947 */
948 switch (id) {
949 case AT91CAP9_ID_SSC0:
950 pdev = &at91cap9_ssc0_device;
951 configure_ssc0_pins(pins);
952 at91_clock_associate("ssc0_clk", &pdev->dev, "ssc");
953 break;
954 case AT91CAP9_ID_SSC1:
955 pdev = &at91cap9_ssc1_device;
956 configure_ssc1_pins(pins);
957 at91_clock_associate("ssc1_clk", &pdev->dev, "ssc");
958 break;
959 default:
960 return;
961 }
962
963 platform_device_register(pdev);
964 }
965
966 #else
967 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
968 #endif
969
970
971 /* --------------------------------------------------------------------
972 * UART
973 * -------------------------------------------------------------------- */
974
975 #if defined(CONFIG_SERIAL_ATMEL)
976 static struct resource dbgu_resources[] = {
977 [0] = {
978 .start = AT91_VA_BASE_SYS + AT91_DBGU,
979 .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
980 .flags = IORESOURCE_MEM,
981 },
982 [1] = {
983 .start = AT91_ID_SYS,
984 .end = AT91_ID_SYS,
985 .flags = IORESOURCE_IRQ,
986 },
987 };
988
989 static struct atmel_uart_data dbgu_data = {
990 .use_dma_tx = 0,
991 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
992 .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
993 };
994
995 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
996
997 static struct platform_device at91cap9_dbgu_device = {
998 .name = "atmel_usart",
999 .id = 0,
1000 .dev = {
1001 .dma_mask = &dbgu_dmamask,
1002 .coherent_dma_mask = DMA_BIT_MASK(32),
1003 .platform_data = &dbgu_data,
1004 },
1005 .resource = dbgu_resources,
1006 .num_resources = ARRAY_SIZE(dbgu_resources),
1007 };
1008
1009 static inline void configure_dbgu_pins(void)
1010 {
1011 at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
1012 at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
1013 }
1014
1015 static struct resource uart0_resources[] = {
1016 [0] = {
1017 .start = AT91CAP9_BASE_US0,
1018 .end = AT91CAP9_BASE_US0 + SZ_16K - 1,
1019 .flags = IORESOURCE_MEM,
1020 },
1021 [1] = {
1022 .start = AT91CAP9_ID_US0,
1023 .end = AT91CAP9_ID_US0,
1024 .flags = IORESOURCE_IRQ,
1025 },
1026 };
1027
1028 static struct atmel_uart_data uart0_data = {
1029 .use_dma_tx = 1,
1030 .use_dma_rx = 1,
1031 };
1032
1033 static u64 uart0_dmamask = DMA_BIT_MASK(32);
1034
1035 static struct platform_device at91cap9_uart0_device = {
1036 .name = "atmel_usart",
1037 .id = 1,
1038 .dev = {
1039 .dma_mask = &uart0_dmamask,
1040 .coherent_dma_mask = DMA_BIT_MASK(32),
1041 .platform_data = &uart0_data,
1042 },
1043 .resource = uart0_resources,
1044 .num_resources = ARRAY_SIZE(uart0_resources),
1045 };
1046
1047 static inline void configure_usart0_pins(unsigned pins)
1048 {
1049 at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
1050 at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
1051
1052 if (pins & ATMEL_UART_RTS)
1053 at91_set_A_periph(AT91_PIN_PA24, 0); /* RTS0 */
1054 if (pins & ATMEL_UART_CTS)
1055 at91_set_A_periph(AT91_PIN_PA25, 0); /* CTS0 */
1056 }
1057
1058 static struct resource uart1_resources[] = {
1059 [0] = {
1060 .start = AT91CAP9_BASE_US1,
1061 .end = AT91CAP9_BASE_US1 + SZ_16K - 1,
1062 .flags = IORESOURCE_MEM,
1063 },
1064 [1] = {
1065 .start = AT91CAP9_ID_US1,
1066 .end = AT91CAP9_ID_US1,
1067 .flags = IORESOURCE_IRQ,
1068 },
1069 };
1070
1071 static struct atmel_uart_data uart1_data = {
1072 .use_dma_tx = 1,
1073 .use_dma_rx = 1,
1074 };
1075
1076 static u64 uart1_dmamask = DMA_BIT_MASK(32);
1077
1078 static struct platform_device at91cap9_uart1_device = {
1079 .name = "atmel_usart",
1080 .id = 2,
1081 .dev = {
1082 .dma_mask = &uart1_dmamask,
1083 .coherent_dma_mask = DMA_BIT_MASK(32),
1084 .platform_data = &uart1_data,
1085 },
1086 .resource = uart1_resources,
1087 .num_resources = ARRAY_SIZE(uart1_resources),
1088 };
1089
1090 static inline void configure_usart1_pins(unsigned pins)
1091 {
1092 at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
1093 at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
1094
1095 if (pins & ATMEL_UART_RTS)
1096 at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
1097 if (pins & ATMEL_UART_CTS)
1098 at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
1099 }
1100
1101 static struct resource uart2_resources[] = {
1102 [0] = {
1103 .start = AT91CAP9_BASE_US2,
1104 .end = AT91CAP9_BASE_US2 + SZ_16K - 1,
1105 .flags = IORESOURCE_MEM,
1106 },
1107 [1] = {
1108 .start = AT91CAP9_ID_US2,
1109 .end = AT91CAP9_ID_US2,
1110 .flags = IORESOURCE_IRQ,
1111 },
1112 };
1113
1114 static struct atmel_uart_data uart2_data = {
1115 .use_dma_tx = 1,
1116 .use_dma_rx = 1,
1117 };
1118
1119 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1120
1121 static struct platform_device at91cap9_uart2_device = {
1122 .name = "atmel_usart",
1123 .id = 3,
1124 .dev = {
1125 .dma_mask = &uart2_dmamask,
1126 .coherent_dma_mask = DMA_BIT_MASK(32),
1127 .platform_data = &uart2_data,
1128 },
1129 .resource = uart2_resources,
1130 .num_resources = ARRAY_SIZE(uart2_resources),
1131 };
1132
1133 static inline void configure_usart2_pins(unsigned pins)
1134 {
1135 at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
1136 at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
1137
1138 if (pins & ATMEL_UART_RTS)
1139 at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
1140 if (pins & ATMEL_UART_CTS)
1141 at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
1142 }
1143
1144 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1145 struct platform_device *atmel_default_console_device; /* the serial console device */
1146
1147 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1148 {
1149 struct platform_device *pdev;
1150
1151 switch (id) {
1152 case 0: /* DBGU */
1153 pdev = &at91cap9_dbgu_device;
1154 configure_dbgu_pins();
1155 at91_clock_associate("mck", &pdev->dev, "usart");
1156 break;
1157 case AT91CAP9_ID_US0:
1158 pdev = &at91cap9_uart0_device;
1159 configure_usart0_pins(pins);
1160 at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1161 break;
1162 case AT91CAP9_ID_US1:
1163 pdev = &at91cap9_uart1_device;
1164 configure_usart1_pins(pins);
1165 at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1166 break;
1167 case AT91CAP9_ID_US2:
1168 pdev = &at91cap9_uart2_device;
1169 configure_usart2_pins(pins);
1170 at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1171 break;
1172 default:
1173 return;
1174 }
1175 pdev->id = portnr; /* update to mapped ID */
1176
1177 if (portnr < ATMEL_MAX_UART)
1178 at91_uarts[portnr] = pdev;
1179 }
1180
1181 void __init at91_set_serial_console(unsigned portnr)
1182 {
1183 if (portnr < ATMEL_MAX_UART)
1184 atmel_default_console_device = at91_uarts[portnr];
1185 }
1186
1187 void __init at91_add_device_serial(void)
1188 {
1189 int i;
1190
1191 for (i = 0; i < ATMEL_MAX_UART; i++) {
1192 if (at91_uarts[i])
1193 platform_device_register(at91_uarts[i]);
1194 }
1195
1196 if (!atmel_default_console_device)
1197 printk(KERN_INFO "AT91: No default serial console defined.\n");
1198 }
1199 #else
1200 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1201 void __init at91_set_serial_console(unsigned portnr) {}
1202 void __init at91_add_device_serial(void) {}
1203 #endif
1204
1205
1206 /* -------------------------------------------------------------------- */
1207 /*
1208 * These devices are always present and don't need any board-specific
1209 * setup.
1210 */
1211 static int __init at91_add_standard_devices(void)
1212 {
1213 at91_add_device_rtt();
1214 at91_add_device_watchdog();
1215 at91_add_device_tc();
1216 return 0;
1217 }
1218
1219 arch_initcall(at91_add_standard_devices);
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