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Input: hgpk - detect simple mode overflows
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / arm / mach-at91 / at91sam9rl_devices.c
blob53aaa94df75a1fbce525da6f2919b94d90827b91
1 /*
2 * Copyright (C) 2007 Atmel Corporation
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file COPYING in the main directory of this archive for
6 * more details.
7 */
8
9 #include <asm/mach/arch.h>
10 #include <asm/mach/map.h>
11
12 #include <linux/dma-mapping.h>
13 #include <linux/platform_device.h>
14 #include <linux/i2c-gpio.h>
15
16 #include <linux/fb.h>
17 #include <video/atmel_lcdc.h>
18
19 #include <mach/board.h>
20 #include <mach/gpio.h>
21 #include <mach/at91sam9rl.h>
22 #include <mach/at91sam9rl_matrix.h>
23 #include <mach/at91sam9_smc.h>
24 #include <mach/at_hdmac.h>
25
26 #include "generic.h"
27
28
29 /* --------------------------------------------------------------------
30 * HDMAC - AHB DMA Controller
31 * -------------------------------------------------------------------- */
32
33 #if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
34 static u64 hdmac_dmamask = DMA_BIT_MASK(32);
35
36 static struct at_dma_platform_data atdma_pdata = {
37 .nr_channels = 2,
38 };
39
40 static struct resource hdmac_resources[] = {
41 [0] = {
42 .start = AT91_BASE_SYS + AT91_DMA,
43 .end = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
44 .flags = IORESOURCE_MEM,
45 },
46 [2] = {
47 .start = AT91SAM9RL_ID_DMA,
48 .end = AT91SAM9RL_ID_DMA,
49 .flags = IORESOURCE_IRQ,
50 },
51 };
52
53 static struct platform_device at_hdmac_device = {
54 .name = "at_hdmac",
55 .id = -1,
56 .dev = {
57 .dma_mask = &hdmac_dmamask,
58 .coherent_dma_mask = DMA_BIT_MASK(32),
59 .platform_data = &atdma_pdata,
60 },
61 .resource = hdmac_resources,
62 .num_resources = ARRAY_SIZE(hdmac_resources),
63 };
64
65 void __init at91_add_device_hdmac(void)
66 {
67 dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
68 platform_device_register(&at_hdmac_device);
69 }
70 #else
71 void __init at91_add_device_hdmac(void) {}
72 #endif
73
74 /* --------------------------------------------------------------------
75 * USB HS Device (Gadget)
76 * -------------------------------------------------------------------- */
77
78 #if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
79
80 static struct resource usba_udc_resources[] = {
81 [0] = {
82 .start = AT91SAM9RL_UDPHS_FIFO,
83 .end = AT91SAM9RL_UDPHS_FIFO + SZ_512K - 1,
84 .flags = IORESOURCE_MEM,
85 },
86 [1] = {
87 .start = AT91SAM9RL_BASE_UDPHS,
88 .end = AT91SAM9RL_BASE_UDPHS + SZ_1K - 1,
89 .flags = IORESOURCE_MEM,
90 },
91 [2] = {
92 .start = AT91SAM9RL_ID_UDPHS,
93 .end = AT91SAM9RL_ID_UDPHS,
94 .flags = IORESOURCE_IRQ,
95 },
96 };
97
98 #define EP(nam, idx, maxpkt, maxbk, dma, isoc) \
99 [idx] = { \
100 .name = nam, \
101 .index = idx, \
102 .fifo_size = maxpkt, \
103 .nr_banks = maxbk, \
104 .can_dma = dma, \
105 .can_isoc = isoc, \
106 }
107
108 static struct usba_ep_data usba_udc_ep[] __initdata = {
109 EP("ep0", 0, 64, 1, 0, 0),
110 EP("ep1", 1, 1024, 2, 1, 1),
111 EP("ep2", 2, 1024, 2, 1, 1),
112 EP("ep3", 3, 1024, 3, 1, 0),
113 EP("ep4", 4, 1024, 3, 1, 0),
114 EP("ep5", 5, 1024, 3, 1, 1),
115 EP("ep6", 6, 1024, 3, 1, 1),
116 };
117
118 #undef EP
119
120 /*
121 * pdata doesn't have room for any endpoints, so we need to
122 * append room for the ones we need right after it.
123 */
124 static struct {
125 struct usba_platform_data pdata;
126 struct usba_ep_data ep[7];
127 } usba_udc_data;
128
129 static struct platform_device at91_usba_udc_device = {
130 .name = "atmel_usba_udc",
131 .id = -1,
132 .dev = {
133 .platform_data = &usba_udc_data.pdata,
134 },
135 .resource = usba_udc_resources,
136 .num_resources = ARRAY_SIZE(usba_udc_resources),
137 };
138
139 void __init at91_add_device_usba(struct usba_platform_data *data)
140 {
141 /*
142 * Invalid pins are 0 on AT91, but the usba driver is shared
143 * with AVR32, which use negative values instead. Once/if
144 * gpio_is_valid() is ported to AT91, revisit this code.
145 */
146 usba_udc_data.pdata.vbus_pin = -EINVAL;
147 usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
148 memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));;
149
150 if (data && data->vbus_pin > 0) {
151 at91_set_gpio_input(data->vbus_pin, 0);
152 at91_set_deglitch(data->vbus_pin, 1);
153 usba_udc_data.pdata.vbus_pin = data->vbus_pin;
154 }
155
156 /* Pullup pin is handled internally by USB device peripheral */
157
158 /* Clocks */
159 at91_clock_associate("utmi_clk", &at91_usba_udc_device.dev, "hclk");
160 at91_clock_associate("udphs_clk", &at91_usba_udc_device.dev, "pclk");
161
162 platform_device_register(&at91_usba_udc_device);
163 }
164 #else
165 void __init at91_add_device_usba(struct usba_platform_data *data) {}
166 #endif
167
168
169 /* --------------------------------------------------------------------
170 * MMC / SD
171 * -------------------------------------------------------------------- */
172
173 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
174 static u64 mmc_dmamask = DMA_BIT_MASK(32);
175 static struct at91_mmc_data mmc_data;
176
177 static struct resource mmc_resources[] = {
178 [0] = {
179 .start = AT91SAM9RL_BASE_MCI,
180 .end = AT91SAM9RL_BASE_MCI + SZ_16K - 1,
181 .flags = IORESOURCE_MEM,
182 },
183 [1] = {
184 .start = AT91SAM9RL_ID_MCI,
185 .end = AT91SAM9RL_ID_MCI,
186 .flags = IORESOURCE_IRQ,
187 },
188 };
189
190 static struct platform_device at91sam9rl_mmc_device = {
191 .name = "at91_mci",
192 .id = -1,
193 .dev = {
194 .dma_mask = &mmc_dmamask,
195 .coherent_dma_mask = DMA_BIT_MASK(32),
196 .platform_data = &mmc_data,
197 },
198 .resource = mmc_resources,
199 .num_resources = ARRAY_SIZE(mmc_resources),
200 };
201
202 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
203 {
204 if (!data)
205 return;
206
207 /* input/irq */
208 if (data->det_pin) {
209 at91_set_gpio_input(data->det_pin, 1);
210 at91_set_deglitch(data->det_pin, 1);
211 }
212 if (data->wp_pin)
213 at91_set_gpio_input(data->wp_pin, 1);
214 if (data->vcc_pin)
215 at91_set_gpio_output(data->vcc_pin, 0);
216
217 /* CLK */
218 at91_set_A_periph(AT91_PIN_PA2, 0);
219
220 /* CMD */
221 at91_set_A_periph(AT91_PIN_PA1, 1);
222
223 /* DAT0, maybe DAT1..DAT3 */
224 at91_set_A_periph(AT91_PIN_PA0, 1);
225 if (data->wire4) {
226 at91_set_A_periph(AT91_PIN_PA3, 1);
227 at91_set_A_periph(AT91_PIN_PA4, 1);
228 at91_set_A_periph(AT91_PIN_PA5, 1);
229 }
230
231 mmc_data = *data;
232 platform_device_register(&at91sam9rl_mmc_device);
233 }
234 #else
235 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
236 #endif
237
238
239 /* --------------------------------------------------------------------
240 * NAND / SmartMedia
241 * -------------------------------------------------------------------- */
242
243 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
244 static struct atmel_nand_data nand_data;
245
246 #define NAND_BASE AT91_CHIPSELECT_3
247
248 static struct resource nand_resources[] = {
249 [0] = {
250 .start = NAND_BASE,
251 .end = NAND_BASE + SZ_256M - 1,
252 .flags = IORESOURCE_MEM,
253 },
254 [1] = {
255 .start = AT91_BASE_SYS + AT91_ECC,
256 .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
257 .flags = IORESOURCE_MEM,
258 }
259 };
260
261 static struct platform_device atmel_nand_device = {
262 .name = "atmel_nand",
263 .id = -1,
264 .dev = {
265 .platform_data = &nand_data,
266 },
267 .resource = nand_resources,
268 .num_resources = ARRAY_SIZE(nand_resources),
269 };
270
271 void __init at91_add_device_nand(struct atmel_nand_data *data)
272 {
273 unsigned long csa;
274
275 if (!data)
276 return;
277
278 csa = at91_sys_read(AT91_MATRIX_EBICSA);
279 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
280
281 /* enable pin */
282 if (data->enable_pin)
283 at91_set_gpio_output(data->enable_pin, 1);
284
285 /* ready/busy pin */
286 if (data->rdy_pin)
287 at91_set_gpio_input(data->rdy_pin, 1);
288
289 /* card detect pin */
290 if (data->det_pin)
291 at91_set_gpio_input(data->det_pin, 1);
292
293 at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */
294 at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */
295
296 nand_data = *data;
297 platform_device_register(&atmel_nand_device);
298 }
299
300 #else
301 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
302 #endif
303
304
305 /* --------------------------------------------------------------------
306 * TWI (i2c)
307 * -------------------------------------------------------------------- */
308
309 /*
310 * Prefer the GPIO code since the TWI controller isn't robust
311 * (gets overruns and underruns under load) and can only issue
312 * repeated STARTs in one scenario (the driver doesn't yet handle them).
313 */
314 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
315
316 static struct i2c_gpio_platform_data pdata = {
317 .sda_pin = AT91_PIN_PA23,
318 .sda_is_open_drain = 1,
319 .scl_pin = AT91_PIN_PA24,
320 .scl_is_open_drain = 1,
321 .udelay = 2, /* ~100 kHz */
322 };
323
324 static struct platform_device at91sam9rl_twi_device = {
325 .name = "i2c-gpio",
326 .id = -1,
327 .dev.platform_data = &pdata,
328 };
329
330 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
331 {
332 at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
333 at91_set_multi_drive(AT91_PIN_PA23, 1);
334
335 at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
336 at91_set_multi_drive(AT91_PIN_PA24, 1);
337
338 i2c_register_board_info(0, devices, nr_devices);
339 platform_device_register(&at91sam9rl_twi_device);
340 }
341
342 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
343
344 static struct resource twi_resources[] = {
345 [0] = {
346 .start = AT91SAM9RL_BASE_TWI0,
347 .end = AT91SAM9RL_BASE_TWI0 + SZ_16K - 1,
348 .flags = IORESOURCE_MEM,
349 },
350 [1] = {
351 .start = AT91SAM9RL_ID_TWI0,
352 .end = AT91SAM9RL_ID_TWI0,
353 .flags = IORESOURCE_IRQ,
354 },
355 };
356
357 static struct platform_device at91sam9rl_twi_device = {
358 .name = "at91_i2c",
359 .id = -1,
360 .resource = twi_resources,
361 .num_resources = ARRAY_SIZE(twi_resources),
362 };
363
364 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
365 {
366 /* pins used for TWI interface */
367 at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
368 at91_set_multi_drive(AT91_PIN_PA23, 1);
369
370 at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
371 at91_set_multi_drive(AT91_PIN_PA24, 1);
372
373 i2c_register_board_info(0, devices, nr_devices);
374 platform_device_register(&at91sam9rl_twi_device);
375 }
376 #else
377 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
378 #endif
379
380
381 /* --------------------------------------------------------------------
382 * SPI
383 * -------------------------------------------------------------------- */
384
385 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
386 static u64 spi_dmamask = DMA_BIT_MASK(32);
387
388 static struct resource spi_resources[] = {
389 [0] = {
390 .start = AT91SAM9RL_BASE_SPI,
391 .end = AT91SAM9RL_BASE_SPI + SZ_16K - 1,
392 .flags = IORESOURCE_MEM,
393 },
394 [1] = {
395 .start = AT91SAM9RL_ID_SPI,
396 .end = AT91SAM9RL_ID_SPI,
397 .flags = IORESOURCE_IRQ,
398 },
399 };
400
401 static struct platform_device at91sam9rl_spi_device = {
402 .name = "atmel_spi",
403 .id = 0,
404 .dev = {
405 .dma_mask = &spi_dmamask,
406 .coherent_dma_mask = DMA_BIT_MASK(32),
407 },
408 .resource = spi_resources,
409 .num_resources = ARRAY_SIZE(spi_resources),
410 };
411
412 static const unsigned spi_standard_cs[4] = { AT91_PIN_PA28, AT91_PIN_PB7, AT91_PIN_PD8, AT91_PIN_PD9 };
413
414
415 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
416 {
417 int i;
418 unsigned long cs_pin;
419
420 at91_set_A_periph(AT91_PIN_PA25, 0); /* MISO */
421 at91_set_A_periph(AT91_PIN_PA26, 0); /* MOSI */
422 at91_set_A_periph(AT91_PIN_PA27, 0); /* SPCK */
423
424 /* Enable SPI chip-selects */
425 for (i = 0; i < nr_devices; i++) {
426 if (devices[i].controller_data)
427 cs_pin = (unsigned long) devices[i].controller_data;
428 else
429 cs_pin = spi_standard_cs[devices[i].chip_select];
430
431 /* enable chip-select pin */
432 at91_set_gpio_output(cs_pin, 1);
433
434 /* pass chip-select pin to driver */
435 devices[i].controller_data = (void *) cs_pin;
436 }
437
438 spi_register_board_info(devices, nr_devices);
439 platform_device_register(&at91sam9rl_spi_device);
440 }
441 #else
442 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
443 #endif
444
445
446 /* --------------------------------------------------------------------
447 * AC97
448 * -------------------------------------------------------------------- */
449
450 #if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
451 static u64 ac97_dmamask = DMA_BIT_MASK(32);
452 static struct ac97c_platform_data ac97_data;
453
454 static struct resource ac97_resources[] = {
455 [0] = {
456 .start = AT91SAM9RL_BASE_AC97C,
457 .end = AT91SAM9RL_BASE_AC97C + SZ_16K - 1,
458 .flags = IORESOURCE_MEM,
459 },
460 [1] = {
461 .start = AT91SAM9RL_ID_AC97C,
462 .end = AT91SAM9RL_ID_AC97C,
463 .flags = IORESOURCE_IRQ,
464 },
465 };
466
467 static struct platform_device at91sam9rl_ac97_device = {
468 .name = "atmel_ac97c",
469 .id = 0,
470 .dev = {
471 .dma_mask = &ac97_dmamask,
472 .coherent_dma_mask = DMA_BIT_MASK(32),
473 .platform_data = &ac97_data,
474 },
475 .resource = ac97_resources,
476 .num_resources = ARRAY_SIZE(ac97_resources),
477 };
478
479 void __init at91_add_device_ac97(struct ac97c_platform_data *data)
480 {
481 if (!data)
482 return;
483
484 at91_set_A_periph(AT91_PIN_PD1, 0); /* AC97FS */
485 at91_set_A_periph(AT91_PIN_PD2, 0); /* AC97CK */
486 at91_set_A_periph(AT91_PIN_PD3, 0); /* AC97TX */
487 at91_set_A_periph(AT91_PIN_PD4, 0); /* AC97RX */
488
489 /* reset */
490 if (data->reset_pin)
491 at91_set_gpio_output(data->reset_pin, 0);
492
493 ac97_data = *data;
494 platform_device_register(&at91sam9rl_ac97_device);
495 }
496 #else
497 void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
498 #endif
499
500
501 /* --------------------------------------------------------------------
502 * LCD Controller
503 * -------------------------------------------------------------------- */
504
505 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
506 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
507 static struct atmel_lcdfb_info lcdc_data;
508
509 static struct resource lcdc_resources[] = {
510 [0] = {
511 .start = AT91SAM9RL_LCDC_BASE,
512 .end = AT91SAM9RL_LCDC_BASE + SZ_4K - 1,
513 .flags = IORESOURCE_MEM,
514 },
515 [1] = {
516 .start = AT91SAM9RL_ID_LCDC,
517 .end = AT91SAM9RL_ID_LCDC,
518 .flags = IORESOURCE_IRQ,
519 },
520 };
521
522 static struct platform_device at91_lcdc_device = {
523 .name = "atmel_lcdfb",
524 .id = 0,
525 .dev = {
526 .dma_mask = &lcdc_dmamask,
527 .coherent_dma_mask = DMA_BIT_MASK(32),
528 .platform_data = &lcdc_data,
529 },
530 .resource = lcdc_resources,
531 .num_resources = ARRAY_SIZE(lcdc_resources),
532 };
533
534 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
535 {
536 if (!data) {
537 return;
538 }
539
540 at91_set_B_periph(AT91_PIN_PC1, 0); /* LCDPWR */
541 at91_set_A_periph(AT91_PIN_PC5, 0); /* LCDHSYNC */
542 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDDOTCK */
543 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDDEN */
544 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDCC */
545 at91_set_B_periph(AT91_PIN_PC9, 0); /* LCDD3 */
546 at91_set_B_periph(AT91_PIN_PC10, 0); /* LCDD4 */
547 at91_set_B_periph(AT91_PIN_PC11, 0); /* LCDD5 */
548 at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD6 */
549 at91_set_B_periph(AT91_PIN_PC13, 0); /* LCDD7 */
550 at91_set_B_periph(AT91_PIN_PC15, 0); /* LCDD11 */
551 at91_set_B_periph(AT91_PIN_PC16, 0); /* LCDD12 */
552 at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD13 */
553 at91_set_B_periph(AT91_PIN_PC18, 0); /* LCDD14 */
554 at91_set_B_periph(AT91_PIN_PC19, 0); /* LCDD15 */
555 at91_set_B_periph(AT91_PIN_PC20, 0); /* LCDD18 */
556 at91_set_B_periph(AT91_PIN_PC21, 0); /* LCDD19 */
557 at91_set_B_periph(AT91_PIN_PC22, 0); /* LCDD20 */
558 at91_set_B_periph(AT91_PIN_PC23, 0); /* LCDD21 */
559 at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */
560 at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */
561
562 lcdc_data = *data;
563 platform_device_register(&at91_lcdc_device);
564 }
565 #else
566 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
567 #endif
568
569
570 /* --------------------------------------------------------------------
571 * Timer/Counter block
572 * -------------------------------------------------------------------- */
573
574 #ifdef CONFIG_ATMEL_TCLIB
575
576 static struct resource tcb_resources[] = {
577 [0] = {
578 .start = AT91SAM9RL_BASE_TCB0,
579 .end = AT91SAM9RL_BASE_TCB0 + SZ_16K - 1,
580 .flags = IORESOURCE_MEM,
581 },
582 [1] = {
583 .start = AT91SAM9RL_ID_TC0,
584 .end = AT91SAM9RL_ID_TC0,
585 .flags = IORESOURCE_IRQ,
586 },
587 [2] = {
588 .start = AT91SAM9RL_ID_TC1,
589 .end = AT91SAM9RL_ID_TC1,
590 .flags = IORESOURCE_IRQ,
591 },
592 [3] = {
593 .start = AT91SAM9RL_ID_TC2,
594 .end = AT91SAM9RL_ID_TC2,
595 .flags = IORESOURCE_IRQ,
596 },
597 };
598
599 static struct platform_device at91sam9rl_tcb_device = {
600 .name = "atmel_tcb",
601 .id = 0,
602 .resource = tcb_resources,
603 .num_resources = ARRAY_SIZE(tcb_resources),
604 };
605
606 static void __init at91_add_device_tc(void)
607 {
608 /* this chip has a separate clock and irq for each TC channel */
609 at91_clock_associate("tc0_clk", &at91sam9rl_tcb_device.dev, "t0_clk");
610 at91_clock_associate("tc1_clk", &at91sam9rl_tcb_device.dev, "t1_clk");
611 at91_clock_associate("tc2_clk", &at91sam9rl_tcb_device.dev, "t2_clk");
612 platform_device_register(&at91sam9rl_tcb_device);
613 }
614 #else
615 static void __init at91_add_device_tc(void) { }
616 #endif
617
618
619 /* --------------------------------------------------------------------
620 * Touchscreen
621 * -------------------------------------------------------------------- */
622
623 #if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
624 static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
625 static struct at91_tsadcc_data tsadcc_data;
626
627 static struct resource tsadcc_resources[] = {
628 [0] = {
629 .start = AT91SAM9RL_BASE_TSC,
630 .end = AT91SAM9RL_BASE_TSC + SZ_16K - 1,
631 .flags = IORESOURCE_MEM,
632 },
633 [1] = {
634 .start = AT91SAM9RL_ID_TSC,
635 .end = AT91SAM9RL_ID_TSC,
636 .flags = IORESOURCE_IRQ,
637 }
638 };
639
640 static struct platform_device at91sam9rl_tsadcc_device = {
641 .name = "atmel_tsadcc",
642 .id = -1,
643 .dev = {
644 .dma_mask = &tsadcc_dmamask,
645 .coherent_dma_mask = DMA_BIT_MASK(32),
646 .platform_data = &tsadcc_data,
647 },
648 .resource = tsadcc_resources,
649 .num_resources = ARRAY_SIZE(tsadcc_resources),
650 };
651
652 void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
653 {
654 if (!data)
655 return;
656
657 at91_set_A_periph(AT91_PIN_PA17, 0); /* AD0_XR */
658 at91_set_A_periph(AT91_PIN_PA18, 0); /* AD1_XL */
659 at91_set_A_periph(AT91_PIN_PA19, 0); /* AD2_YT */
660 at91_set_A_periph(AT91_PIN_PA20, 0); /* AD3_TB */
661
662 tsadcc_data = *data;
663 platform_device_register(&at91sam9rl_tsadcc_device);
664 }
665 #else
666 void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
667 #endif
668
669
670 /* --------------------------------------------------------------------
671 * RTC
672 * -------------------------------------------------------------------- */
673
674 #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
675 static struct platform_device at91sam9rl_rtc_device = {
676 .name = "at91_rtc",
677 .id = -1,
678 .num_resources = 0,
679 };
680
681 static void __init at91_add_device_rtc(void)
682 {
683 platform_device_register(&at91sam9rl_rtc_device);
684 }
685 #else
686 static void __init at91_add_device_rtc(void) {}
687 #endif
688
689
690 /* --------------------------------------------------------------------
691 * RTT
692 * -------------------------------------------------------------------- */
693
694 static struct resource rtt_resources[] = {
695 {
696 .start = AT91_BASE_SYS + AT91_RTT,
697 .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
698 .flags = IORESOURCE_MEM,
699 }
700 };
701
702 static struct platform_device at91sam9rl_rtt_device = {
703 .name = "at91_rtt",
704 .id = 0,
705 .resource = rtt_resources,
706 .num_resources = ARRAY_SIZE(rtt_resources),
707 };
708
709 static void __init at91_add_device_rtt(void)
710 {
711 platform_device_register(&at91sam9rl_rtt_device);
712 }
713
714
715 /* --------------------------------------------------------------------
716 * Watchdog
717 * -------------------------------------------------------------------- */
718
719 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
720 static struct platform_device at91sam9rl_wdt_device = {
721 .name = "at91_wdt",
722 .id = -1,
723 .num_resources = 0,
724 };
725
726 static void __init at91_add_device_watchdog(void)
727 {
728 platform_device_register(&at91sam9rl_wdt_device);
729 }
730 #else
731 static void __init at91_add_device_watchdog(void) {}
732 #endif
733
734
735 /* --------------------------------------------------------------------
736 * PWM
737 * --------------------------------------------------------------------*/
738
739 #if defined(CONFIG_ATMEL_PWM)
740 static u32 pwm_mask;
741
742 static struct resource pwm_resources[] = {
743 [0] = {
744 .start = AT91SAM9RL_BASE_PWMC,
745 .end = AT91SAM9RL_BASE_PWMC + SZ_16K - 1,
746 .flags = IORESOURCE_MEM,
747 },
748 [1] = {
749 .start = AT91SAM9RL_ID_PWMC,
750 .end = AT91SAM9RL_ID_PWMC,
751 .flags = IORESOURCE_IRQ,
752 },
753 };
754
755 static struct platform_device at91sam9rl_pwm0_device = {
756 .name = "atmel_pwm",
757 .id = -1,
758 .dev = {
759 .platform_data = &pwm_mask,
760 },
761 .resource = pwm_resources,
762 .num_resources = ARRAY_SIZE(pwm_resources),
763 };
764
765 void __init at91_add_device_pwm(u32 mask)
766 {
767 if (mask & (1 << AT91_PWM0))
768 at91_set_B_periph(AT91_PIN_PB8, 1); /* enable PWM0 */
769
770 if (mask & (1 << AT91_PWM1))
771 at91_set_B_periph(AT91_PIN_PB9, 1); /* enable PWM1 */
772
773 if (mask & (1 << AT91_PWM2))
774 at91_set_B_periph(AT91_PIN_PD5, 1); /* enable PWM2 */
775
776 if (mask & (1 << AT91_PWM3))
777 at91_set_B_periph(AT91_PIN_PD8, 1); /* enable PWM3 */
778
779 pwm_mask = mask;
780
781 platform_device_register(&at91sam9rl_pwm0_device);
782 }
783 #else
784 void __init at91_add_device_pwm(u32 mask) {}
785 #endif
786
787
788 /* --------------------------------------------------------------------
789 * SSC -- Synchronous Serial Controller
790 * -------------------------------------------------------------------- */
791
792 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
793 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
794
795 static struct resource ssc0_resources[] = {
796 [0] = {
797 .start = AT91SAM9RL_BASE_SSC0,
798 .end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
799 .flags = IORESOURCE_MEM,
800 },
801 [1] = {
802 .start = AT91SAM9RL_ID_SSC0,
803 .end = AT91SAM9RL_ID_SSC0,
804 .flags = IORESOURCE_IRQ,
805 },
806 };
807
808 static struct platform_device at91sam9rl_ssc0_device = {
809 .name = "ssc",
810 .id = 0,
811 .dev = {
812 .dma_mask = &ssc0_dmamask,
813 .coherent_dma_mask = DMA_BIT_MASK(32),
814 },
815 .resource = ssc0_resources,
816 .num_resources = ARRAY_SIZE(ssc0_resources),
817 };
818
819 static inline void configure_ssc0_pins(unsigned pins)
820 {
821 if (pins & ATMEL_SSC_TF)
822 at91_set_A_periph(AT91_PIN_PC0, 1);
823 if (pins & ATMEL_SSC_TK)
824 at91_set_A_periph(AT91_PIN_PC1, 1);
825 if (pins & ATMEL_SSC_TD)
826 at91_set_A_periph(AT91_PIN_PA15, 1);
827 if (pins & ATMEL_SSC_RD)
828 at91_set_A_periph(AT91_PIN_PA16, 1);
829 if (pins & ATMEL_SSC_RK)
830 at91_set_B_periph(AT91_PIN_PA10, 1);
831 if (pins & ATMEL_SSC_RF)
832 at91_set_B_periph(AT91_PIN_PA22, 1);
833 }
834
835 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
836
837 static struct resource ssc1_resources[] = {
838 [0] = {
839 .start = AT91SAM9RL_BASE_SSC1,
840 .end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
841 .flags = IORESOURCE_MEM,
842 },
843 [1] = {
844 .start = AT91SAM9RL_ID_SSC1,
845 .end = AT91SAM9RL_ID_SSC1,
846 .flags = IORESOURCE_IRQ,
847 },
848 };
849
850 static struct platform_device at91sam9rl_ssc1_device = {
851 .name = "ssc",
852 .id = 1,
853 .dev = {
854 .dma_mask = &ssc1_dmamask,
855 .coherent_dma_mask = DMA_BIT_MASK(32),
856 },
857 .resource = ssc1_resources,
858 .num_resources = ARRAY_SIZE(ssc1_resources),
859 };
860
861 static inline void configure_ssc1_pins(unsigned pins)
862 {
863 if (pins & ATMEL_SSC_TF)
864 at91_set_B_periph(AT91_PIN_PA29, 1);
865 if (pins & ATMEL_SSC_TK)
866 at91_set_B_periph(AT91_PIN_PA30, 1);
867 if (pins & ATMEL_SSC_TD)
868 at91_set_B_periph(AT91_PIN_PA13, 1);
869 if (pins & ATMEL_SSC_RD)
870 at91_set_B_periph(AT91_PIN_PA14, 1);
871 if (pins & ATMEL_SSC_RK)
872 at91_set_B_periph(AT91_PIN_PA9, 1);
873 if (pins & ATMEL_SSC_RF)
874 at91_set_B_periph(AT91_PIN_PA8, 1);
875 }
876
877 /*
878 * SSC controllers are accessed through library code, instead of any
879 * kind of all-singing/all-dancing driver. For example one could be
880 * used by a particular I2S audio codec's driver, while another one
881 * on the same system might be used by a custom data capture driver.
882 */
883 void __init at91_add_device_ssc(unsigned id, unsigned pins)
884 {
885 struct platform_device *pdev;
886
887 /*
888 * NOTE: caller is responsible for passing information matching
889 * "pins" to whatever will be using each particular controller.
890 */
891 switch (id) {
892 case AT91SAM9RL_ID_SSC0:
893 pdev = &at91sam9rl_ssc0_device;
894 configure_ssc0_pins(pins);
895 at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
896 break;
897 case AT91SAM9RL_ID_SSC1:
898 pdev = &at91sam9rl_ssc1_device;
899 configure_ssc1_pins(pins);
900 at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
901 break;
902 default:
903 return;
904 }
905
906 platform_device_register(pdev);
907 }
908
909 #else
910 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
911 #endif
912
913
914 /* --------------------------------------------------------------------
915 * UART
916 * -------------------------------------------------------------------- */
917
918 #if defined(CONFIG_SERIAL_ATMEL)
919 static struct resource dbgu_resources[] = {
920 [0] = {
921 .start = AT91_VA_BASE_SYS + AT91_DBGU,
922 .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
923 .flags = IORESOURCE_MEM,
924 },
925 [1] = {
926 .start = AT91_ID_SYS,
927 .end = AT91_ID_SYS,
928 .flags = IORESOURCE_IRQ,
929 },
930 };
931
932 static struct atmel_uart_data dbgu_data = {
933 .use_dma_tx = 0,
934 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
935 .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
936 };
937
938 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
939
940 static struct platform_device at91sam9rl_dbgu_device = {
941 .name = "atmel_usart",
942 .id = 0,
943 .dev = {
944 .dma_mask = &dbgu_dmamask,
945 .coherent_dma_mask = DMA_BIT_MASK(32),
946 .platform_data = &dbgu_data,
947 },
948 .resource = dbgu_resources,
949 .num_resources = ARRAY_SIZE(dbgu_resources),
950 };
951
952 static inline void configure_dbgu_pins(void)
953 {
954 at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */
955 at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */
956 }
957
958 static struct resource uart0_resources[] = {
959 [0] = {
960 .start = AT91SAM9RL_BASE_US0,
961 .end = AT91SAM9RL_BASE_US0 + SZ_16K - 1,
962 .flags = IORESOURCE_MEM,
963 },
964 [1] = {
965 .start = AT91SAM9RL_ID_US0,
966 .end = AT91SAM9RL_ID_US0,
967 .flags = IORESOURCE_IRQ,
968 },
969 };
970
971 static struct atmel_uart_data uart0_data = {
972 .use_dma_tx = 1,
973 .use_dma_rx = 1,
974 };
975
976 static u64 uart0_dmamask = DMA_BIT_MASK(32);
977
978 static struct platform_device at91sam9rl_uart0_device = {
979 .name = "atmel_usart",
980 .id = 1,
981 .dev = {
982 .dma_mask = &uart0_dmamask,
983 .coherent_dma_mask = DMA_BIT_MASK(32),
984 .platform_data = &uart0_data,
985 },
986 .resource = uart0_resources,
987 .num_resources = ARRAY_SIZE(uart0_resources),
988 };
989
990 static inline void configure_usart0_pins(unsigned pins)
991 {
992 at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */
993 at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */
994
995 if (pins & ATMEL_UART_RTS)
996 at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */
997 if (pins & ATMEL_UART_CTS)
998 at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */
999 if (pins & ATMEL_UART_DSR)
1000 at91_set_A_periph(AT91_PIN_PD14, 0); /* DSR0 */
1001 if (pins & ATMEL_UART_DTR)
1002 at91_set_A_periph(AT91_PIN_PD15, 0); /* DTR0 */
1003 if (pins & ATMEL_UART_DCD)
1004 at91_set_A_periph(AT91_PIN_PD16, 0); /* DCD0 */
1005 if (pins & ATMEL_UART_RI)
1006 at91_set_A_periph(AT91_PIN_PD17, 0); /* RI0 */
1007 }
1008
1009 static struct resource uart1_resources[] = {
1010 [0] = {
1011 .start = AT91SAM9RL_BASE_US1,
1012 .end = AT91SAM9RL_BASE_US1 + SZ_16K - 1,
1013 .flags = IORESOURCE_MEM,
1014 },
1015 [1] = {
1016 .start = AT91SAM9RL_ID_US1,
1017 .end = AT91SAM9RL_ID_US1,
1018 .flags = IORESOURCE_IRQ,
1019 },
1020 };
1021
1022 static struct atmel_uart_data uart1_data = {
1023 .use_dma_tx = 1,
1024 .use_dma_rx = 1,
1025 };
1026
1027 static u64 uart1_dmamask = DMA_BIT_MASK(32);
1028
1029 static struct platform_device at91sam9rl_uart1_device = {
1030 .name = "atmel_usart",
1031 .id = 2,
1032 .dev = {
1033 .dma_mask = &uart1_dmamask,
1034 .coherent_dma_mask = DMA_BIT_MASK(32),
1035 .platform_data = &uart1_data,
1036 },
1037 .resource = uart1_resources,
1038 .num_resources = ARRAY_SIZE(uart1_resources),
1039 };
1040
1041 static inline void configure_usart1_pins(unsigned pins)
1042 {
1043 at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */
1044 at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */
1045
1046 if (pins & ATMEL_UART_RTS)
1047 at91_set_B_periph(AT91_PIN_PA18, 0); /* RTS1 */
1048 if (pins & ATMEL_UART_CTS)
1049 at91_set_B_periph(AT91_PIN_PA19, 0); /* CTS1 */
1050 }
1051
1052 static struct resource uart2_resources[] = {
1053 [0] = {
1054 .start = AT91SAM9RL_BASE_US2,
1055 .end = AT91SAM9RL_BASE_US2 + SZ_16K - 1,
1056 .flags = IORESOURCE_MEM,
1057 },
1058 [1] = {
1059 .start = AT91SAM9RL_ID_US2,
1060 .end = AT91SAM9RL_ID_US2,
1061 .flags = IORESOURCE_IRQ,
1062 },
1063 };
1064
1065 static struct atmel_uart_data uart2_data = {
1066 .use_dma_tx = 1,
1067 .use_dma_rx = 1,
1068 };
1069
1070 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1071
1072 static struct platform_device at91sam9rl_uart2_device = {
1073 .name = "atmel_usart",
1074 .id = 3,
1075 .dev = {
1076 .dma_mask = &uart2_dmamask,
1077 .coherent_dma_mask = DMA_BIT_MASK(32),
1078 .platform_data = &uart2_data,
1079 },
1080 .resource = uart2_resources,
1081 .num_resources = ARRAY_SIZE(uart2_resources),
1082 };
1083
1084 static inline void configure_usart2_pins(unsigned pins)
1085 {
1086 at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */
1087 at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */
1088
1089 if (pins & ATMEL_UART_RTS)
1090 at91_set_A_periph(AT91_PIN_PA29, 0); /* RTS2 */
1091 if (pins & ATMEL_UART_CTS)
1092 at91_set_A_periph(AT91_PIN_PA30, 0); /* CTS2 */
1093 }
1094
1095 static struct resource uart3_resources[] = {
1096 [0] = {
1097 .start = AT91SAM9RL_BASE_US3,
1098 .end = AT91SAM9RL_BASE_US3 + SZ_16K - 1,
1099 .flags = IORESOURCE_MEM,
1100 },
1101 [1] = {
1102 .start = AT91SAM9RL_ID_US3,
1103 .end = AT91SAM9RL_ID_US3,
1104 .flags = IORESOURCE_IRQ,
1105 },
1106 };
1107
1108 static struct atmel_uart_data uart3_data = {
1109 .use_dma_tx = 1,
1110 .use_dma_rx = 1,
1111 };
1112
1113 static u64 uart3_dmamask = DMA_BIT_MASK(32);
1114
1115 static struct platform_device at91sam9rl_uart3_device = {
1116 .name = "atmel_usart",
1117 .id = 4,
1118 .dev = {
1119 .dma_mask = &uart3_dmamask,
1120 .coherent_dma_mask = DMA_BIT_MASK(32),
1121 .platform_data = &uart3_data,
1122 },
1123 .resource = uart3_resources,
1124 .num_resources = ARRAY_SIZE(uart3_resources),
1125 };
1126
1127 static inline void configure_usart3_pins(unsigned pins)
1128 {
1129 at91_set_A_periph(AT91_PIN_PB0, 1); /* TXD3 */
1130 at91_set_A_periph(AT91_PIN_PB1, 0); /* RXD3 */
1131
1132 if (pins & ATMEL_UART_RTS)
1133 at91_set_B_periph(AT91_PIN_PD4, 0); /* RTS3 */
1134 if (pins & ATMEL_UART_CTS)
1135 at91_set_B_periph(AT91_PIN_PD3, 0); /* CTS3 */
1136 }
1137
1138 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1139 struct platform_device *atmel_default_console_device; /* the serial console device */
1140
1141 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1142 {
1143 struct platform_device *pdev;
1144
1145 switch (id) {
1146 case 0: /* DBGU */
1147 pdev = &at91sam9rl_dbgu_device;
1148 configure_dbgu_pins();
1149 at91_clock_associate("mck", &pdev->dev, "usart");
1150 break;
1151 case AT91SAM9RL_ID_US0:
1152 pdev = &at91sam9rl_uart0_device;
1153 configure_usart0_pins(pins);
1154 at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1155 break;
1156 case AT91SAM9RL_ID_US1:
1157 pdev = &at91sam9rl_uart1_device;
1158 configure_usart1_pins(pins);
1159 at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1160 break;
1161 case AT91SAM9RL_ID_US2:
1162 pdev = &at91sam9rl_uart2_device;
1163 configure_usart2_pins(pins);
1164 at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1165 break;
1166 case AT91SAM9RL_ID_US3:
1167 pdev = &at91sam9rl_uart3_device;
1168 configure_usart3_pins(pins);
1169 at91_clock_associate("usart3_clk", &pdev->dev, "usart");
1170 break;
1171 default:
1172 return;
1173 }
1174 pdev->id = portnr; /* update to mapped ID */
1175
1176 if (portnr < ATMEL_MAX_UART)
1177 at91_uarts[portnr] = pdev;
1178 }
1179
1180 void __init at91_set_serial_console(unsigned portnr)
1181 {
1182 if (portnr < ATMEL_MAX_UART)
1183 atmel_default_console_device = at91_uarts[portnr];
1184 }
1185
1186 void __init at91_add_device_serial(void)
1187 {
1188 int i;
1189
1190 for (i = 0; i < ATMEL_MAX_UART; i++) {
1191 if (at91_uarts[i])
1192 platform_device_register(at91_uarts[i]);
1193 }
1194
1195 if (!atmel_default_console_device)
1196 printk(KERN_INFO "AT91: No default serial console defined.\n");
1197 }
1198 #else
1199 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1200 void __init at91_set_serial_console(unsigned portnr) {}
1201 void __init at91_add_device_serial(void) {}
1202 #endif
1203
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_hdmac();
1214 at91_add_device_rtc();
1215 at91_add_device_rtt();
1216 at91_add_device_watchdog();
1217 at91_add_device_tc();
1218 return 0;
1219 }
1220
1221 arch_initcall(at91_add_standard_devices);
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