[PATCH] at91_serial -> atmel_serial: Platform device name
[linux-2.6.git] / arch / arm / mach-at91rm9200 / devices.c
1 /*
2  * arch/arm/mach-at91rm9200/devices.c
3  *
4  *  Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
5  *  Copyright (C) 2005 David Brownell
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  */
13 #include <asm/mach/arch.h>
14 #include <asm/mach/map.h>
15
16 #include <linux/platform_device.h>
17
18 #include <asm/hardware.h>
19 #include <asm/arch/board.h>
20 #include <asm/arch/gpio.h>
21
22 #include "generic.h"
23
24 #define SZ_512  0x00000200
25 #define SZ_256  0x00000100
26 #define SZ_16   0x00000010
27
28 /* --------------------------------------------------------------------
29  *  USB Host
30  * -------------------------------------------------------------------- */
31
32 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
33 static u64 ohci_dmamask = 0xffffffffUL;
34 static struct at91_usbh_data usbh_data;
35
36 static struct resource at91_usbh_resources[] = {
37         [0] = {
38                 .start  = AT91RM9200_UHP_BASE,
39                 .end    = AT91RM9200_UHP_BASE + SZ_1M - 1,
40                 .flags  = IORESOURCE_MEM,
41         },
42         [1] = {
43                 .start  = AT91RM9200_ID_UHP,
44                 .end    = AT91RM9200_ID_UHP,
45                 .flags  = IORESOURCE_IRQ,
46         },
47 };
48
49 static struct platform_device at91rm9200_usbh_device = {
50         .name           = "at91_ohci",
51         .id             = -1,
52         .dev            = {
53                                 .dma_mask               = &ohci_dmamask,
54                                 .coherent_dma_mask      = 0xffffffff,
55                                 .platform_data          = &usbh_data,
56         },
57         .resource       = at91_usbh_resources,
58         .num_resources  = ARRAY_SIZE(at91_usbh_resources),
59 };
60
61 void __init at91_add_device_usbh(struct at91_usbh_data *data)
62 {
63         if (!data)
64                 return;
65
66         usbh_data = *data;
67         platform_device_register(&at91rm9200_usbh_device);
68 }
69 #else
70 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
71 #endif
72
73
74 /* --------------------------------------------------------------------
75  *  USB Device (Gadget)
76  * -------------------------------------------------------------------- */
77
78 #ifdef CONFIG_USB_GADGET_AT91
79 static struct at91_udc_data udc_data;
80
81 static struct resource at91_udc_resources[] = {
82         [0] = {
83                 .start  = AT91RM9200_BASE_UDP,
84                 .end    = AT91RM9200_BASE_UDP + SZ_16K - 1,
85                 .flags  = IORESOURCE_MEM,
86         },
87         [1] = {
88                 .start  = AT91RM9200_ID_UDP,
89                 .end    = AT91RM9200_ID_UDP,
90                 .flags  = IORESOURCE_IRQ,
91         },
92 };
93
94 static struct platform_device at91rm9200_udc_device = {
95         .name           = "at91_udc",
96         .id             = -1,
97         .dev            = {
98                                 .platform_data          = &udc_data,
99         },
100         .resource       = at91_udc_resources,
101         .num_resources  = ARRAY_SIZE(at91_udc_resources),
102 };
103
104 void __init at91_add_device_udc(struct at91_udc_data *data)
105 {
106         if (!data)
107                 return;
108
109         if (data->vbus_pin) {
110                 at91_set_gpio_input(data->vbus_pin, 0);
111                 at91_set_deglitch(data->vbus_pin, 1);
112         }
113         if (data->pullup_pin)
114                 at91_set_gpio_output(data->pullup_pin, 0);
115
116         udc_data = *data;
117         platform_device_register(&at91rm9200_udc_device);
118 }
119 #else
120 void __init at91_add_device_udc(struct at91_udc_data *data) {}
121 #endif
122
123
124 /* --------------------------------------------------------------------
125  *  Ethernet
126  * -------------------------------------------------------------------- */
127
128 #if defined(CONFIG_ARM_AT91_ETHER) || defined(CONFIG_ARM_AT91_ETHER_MODULE)
129 static u64 eth_dmamask = 0xffffffffUL;
130 static struct at91_eth_data eth_data;
131
132 static struct resource at91_eth_resources[] = {
133         [0] = {
134                 .start  = AT91_VA_BASE_EMAC,
135                 .end    = AT91_VA_BASE_EMAC + SZ_16K - 1,
136                 .flags  = IORESOURCE_MEM,
137         },
138         [1] = {
139                 .start  = AT91RM9200_ID_EMAC,
140                 .end    = AT91RM9200_ID_EMAC,
141                 .flags  = IORESOURCE_IRQ,
142         },
143 };
144
145 static struct platform_device at91rm9200_eth_device = {
146         .name           = "at91_ether",
147         .id             = -1,
148         .dev            = {
149                                 .dma_mask               = &eth_dmamask,
150                                 .coherent_dma_mask      = 0xffffffff,
151                                 .platform_data          = &eth_data,
152         },
153         .resource       = at91_eth_resources,
154         .num_resources  = ARRAY_SIZE(at91_eth_resources),
155 };
156
157 void __init at91_add_device_eth(struct at91_eth_data *data)
158 {
159         if (!data)
160                 return;
161
162         if (data->phy_irq_pin) {
163                 at91_set_gpio_input(data->phy_irq_pin, 0);
164                 at91_set_deglitch(data->phy_irq_pin, 1);
165         }
166
167         /* Pins used for MII and RMII */
168         at91_set_A_periph(AT91_PIN_PA16, 0);    /* EMDIO */
169         at91_set_A_periph(AT91_PIN_PA15, 0);    /* EMDC */
170         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERXER */
171         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ERX1 */
172         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ERX0 */
173         at91_set_A_periph(AT91_PIN_PA11, 0);    /* ECRS_ECRSDV */
174         at91_set_A_periph(AT91_PIN_PA10, 0);    /* ETX1 */
175         at91_set_A_periph(AT91_PIN_PA9, 0);     /* ETX0 */
176         at91_set_A_periph(AT91_PIN_PA8, 0);     /* ETXEN */
177         at91_set_A_periph(AT91_PIN_PA7, 0);     /* ETXCK_EREFCK */
178
179         if (!data->is_rmii) {
180                 at91_set_B_periph(AT91_PIN_PB19, 0);    /* ERXCK */
181                 at91_set_B_periph(AT91_PIN_PB18, 0);    /* ECOL */
182                 at91_set_B_periph(AT91_PIN_PB17, 0);    /* ERXDV */
183                 at91_set_B_periph(AT91_PIN_PB16, 0);    /* ERX3 */
184                 at91_set_B_periph(AT91_PIN_PB15, 0);    /* ERX2 */
185                 at91_set_B_periph(AT91_PIN_PB14, 0);    /* ETXER */
186                 at91_set_B_periph(AT91_PIN_PB13, 0);    /* ETX3 */
187                 at91_set_B_periph(AT91_PIN_PB12, 0);    /* ETX2 */
188         }
189
190         eth_data = *data;
191         platform_device_register(&at91rm9200_eth_device);
192 }
193 #else
194 void __init at91_add_device_eth(struct at91_eth_data *data) {}
195 #endif
196
197
198 /* --------------------------------------------------------------------
199  *  Compact Flash / PCMCIA
200  * -------------------------------------------------------------------- */
201
202 #if defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
203 static struct at91_cf_data cf_data;
204
205 static struct resource at91_cf_resources[] = {
206         [0] = {
207                 .start  = AT91_CF_BASE,
208                 /* ties up CS4, CS5 and CS6 */
209                 .end    = AT91_CF_BASE + (0x30000000 - 1),
210                 .flags  = IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT,
211         },
212 };
213
214 static struct platform_device at91rm9200_cf_device = {
215         .name           = "at91_cf",
216         .id             = -1,
217         .dev            = {
218                                 .platform_data          = &cf_data,
219         },
220         .resource       = at91_cf_resources,
221         .num_resources  = ARRAY_SIZE(at91_cf_resources),
222 };
223
224 void __init at91_add_device_cf(struct at91_cf_data *data)
225 {
226         if (!data)
227                 return;
228
229         /* input/irq */
230         if (data->irq_pin) {
231                 at91_set_gpio_input(data->irq_pin, 1);
232                 at91_set_deglitch(data->irq_pin, 1);
233         }
234         at91_set_gpio_input(data->det_pin, 1);
235         at91_set_deglitch(data->det_pin, 1);
236
237         /* outputs, initially off */
238         if (data->vcc_pin)
239                 at91_set_gpio_output(data->vcc_pin, 0);
240         at91_set_gpio_output(data->rst_pin, 0);
241
242         /* force poweron defaults for these pins ... */
243         at91_set_A_periph(AT91_PIN_PC9, 0);     /* A25/CFRNW */
244         at91_set_A_periph(AT91_PIN_PC10, 0);    /* NCS4/CFCS */
245         at91_set_A_periph(AT91_PIN_PC11, 0);    /* NCS5/CFCE1 */
246         at91_set_A_periph(AT91_PIN_PC12, 0);    /* NCS6/CFCE2 */
247
248         cf_data = *data;
249         platform_device_register(&at91rm9200_cf_device);
250 }
251 #else
252 void __init at91_add_device_cf(struct at91_cf_data *data) {}
253 #endif
254
255
256 /* --------------------------------------------------------------------
257  *  MMC / SD
258  * -------------------------------------------------------------------- */
259
260 #if defined(CONFIG_MMC_AT91RM9200) || defined(CONFIG_MMC_AT91RM9200_MODULE)
261 static u64 mmc_dmamask = 0xffffffffUL;
262 static struct at91_mmc_data mmc_data;
263
264 static struct resource at91_mmc_resources[] = {
265         [0] = {
266                 .start  = AT91RM9200_BASE_MCI,
267                 .end    = AT91RM9200_BASE_MCI + SZ_16K - 1,
268                 .flags  = IORESOURCE_MEM,
269         },
270         [1] = {
271                 .start  = AT91RM9200_ID_MCI,
272                 .end    = AT91RM9200_ID_MCI,
273                 .flags  = IORESOURCE_IRQ,
274         },
275 };
276
277 static struct platform_device at91rm9200_mmc_device = {
278         .name           = "at91_mci",
279         .id             = -1,
280         .dev            = {
281                                 .dma_mask               = &mmc_dmamask,
282                                 .coherent_dma_mask      = 0xffffffff,
283                                 .platform_data          = &mmc_data,
284         },
285         .resource       = at91_mmc_resources,
286         .num_resources  = ARRAY_SIZE(at91_mmc_resources),
287 };
288
289 void __init at91_add_device_mmc(struct at91_mmc_data *data)
290 {
291         if (!data)
292                 return;
293
294         /* input/irq */
295         if (data->det_pin) {
296                 at91_set_gpio_input(data->det_pin, 1);
297                 at91_set_deglitch(data->det_pin, 1);
298         }
299         if (data->wp_pin)
300                 at91_set_gpio_input(data->wp_pin, 1);
301
302         /* CLK */
303         at91_set_A_periph(AT91_PIN_PA27, 0);
304
305         if (data->is_b) {
306                 /* CMD */
307                 at91_set_B_periph(AT91_PIN_PA8, 0);
308
309                 /* DAT0, maybe DAT1..DAT3 */
310                 at91_set_B_periph(AT91_PIN_PA9, 0);
311                 if (data->wire4) {
312                         at91_set_B_periph(AT91_PIN_PA10, 0);
313                         at91_set_B_periph(AT91_PIN_PA11, 0);
314                         at91_set_B_periph(AT91_PIN_PA12, 0);
315                 }
316         } else {
317                 /* CMD */
318                 at91_set_A_periph(AT91_PIN_PA28, 0);
319
320                 /* DAT0, maybe DAT1..DAT3 */
321                 at91_set_A_periph(AT91_PIN_PA29, 0);
322                 if (data->wire4) {
323                         at91_set_B_periph(AT91_PIN_PB3, 0);
324                         at91_set_B_periph(AT91_PIN_PB4, 0);
325                         at91_set_B_periph(AT91_PIN_PB5, 0);
326                 }
327         }
328
329         mmc_data = *data;
330         platform_device_register(&at91rm9200_mmc_device);
331 }
332 #else
333 void __init at91_add_device_mmc(struct at91_mmc_data *data) {}
334 #endif
335
336
337 /* --------------------------------------------------------------------
338  *  NAND / SmartMedia
339  * -------------------------------------------------------------------- */
340
341 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
342 static struct at91_nand_data nand_data;
343
344 static struct resource at91_nand_resources[] = {
345         {
346                 .start  = AT91_SMARTMEDIA_BASE,
347                 .end    = AT91_SMARTMEDIA_BASE + SZ_8M - 1,
348                 .flags  = IORESOURCE_MEM,
349         }
350 };
351
352 static struct platform_device at91_nand_device = {
353         .name           = "at91_nand",
354         .id             = -1,
355         .dev            = {
356                                 .platform_data  = &nand_data,
357         },
358         .resource       = at91_nand_resources,
359         .num_resources  = ARRAY_SIZE(at91_nand_resources),
360 };
361
362 void __init at91_add_device_nand(struct at91_nand_data *data)
363 {
364         if (!data)
365                 return;
366
367         /* enable pin */
368         if (data->enable_pin)
369                 at91_set_gpio_output(data->enable_pin, 1);
370
371         /* ready/busy pin */
372         if (data->rdy_pin)
373                 at91_set_gpio_input(data->rdy_pin, 1);
374
375         /* card detect pin */
376         if (data->det_pin)
377                 at91_set_gpio_input(data->det_pin, 1);
378
379         at91_set_A_periph(AT91_PIN_PC1, 0);             /* SMOE */
380         at91_set_A_periph(AT91_PIN_PC3, 0);             /* SMWE */
381
382         nand_data = *data;
383         platform_device_register(&at91_nand_device);
384 }
385 #else
386 void __init at91_add_device_nand(struct at91_nand_data *data) {}
387 #endif
388
389
390 /* --------------------------------------------------------------------
391  *  TWI (i2c)
392  * -------------------------------------------------------------------- */
393
394 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
395 static struct platform_device at91rm9200_twi_device = {
396         .name           = "at91_i2c",
397         .id             = -1,
398         .num_resources  = 0,
399 };
400
401 void __init at91_add_device_i2c(void)
402 {
403         /* pins used for TWI interface */
404         at91_set_A_periph(AT91_PIN_PA25, 0);            /* TWD */
405         at91_set_multi_drive(AT91_PIN_PA25, 1);
406
407         at91_set_A_periph(AT91_PIN_PA26, 0);            /* TWCK */
408         at91_set_multi_drive(AT91_PIN_PA26, 1);
409
410         platform_device_register(&at91rm9200_twi_device);
411 }
412 #else
413 void __init at91_add_device_i2c(void) {}
414 #endif
415
416
417 /* --------------------------------------------------------------------
418  *  SPI
419  * -------------------------------------------------------------------- */
420
421 #if defined(CONFIG_SPI_AT91) || defined(CONFIG_SPI_AT91_MODULE) || defined(CONFIG_AT91_SPI) || defined(CONFIG_AT91_SPI_MODULE)
422 static u64 spi_dmamask = 0xffffffffUL;
423
424 static struct resource at91_spi_resources[] = {
425         [0] = {
426                 .start  = AT91RM9200_BASE_SPI,
427                 .end    = AT91RM9200_BASE_SPI + SZ_16K - 1,
428                 .flags  = IORESOURCE_MEM,
429         },
430         [1] = {
431                 .start  = AT91RM9200_ID_SPI,
432                 .end    = AT91RM9200_ID_SPI,
433                 .flags  = IORESOURCE_IRQ,
434         },
435 };
436
437 static struct platform_device at91rm9200_spi_device = {
438         .name           = "at91_spi",
439         .id             = 0,
440         .dev            = {
441                 .dma_mask               = &spi_dmamask,
442                 .coherent_dma_mask      = 0xffffffff,
443         },
444         .resource       = at91_spi_resources,
445         .num_resources  = ARRAY_SIZE(at91_spi_resources),
446 };
447
448 static const unsigned at91_spi_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 };
449
450 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
451 {
452         int i;
453         unsigned long cs_pin;
454
455         at91_set_A_periph(AT91_PIN_PA0, 0);     /* MISO */
456         at91_set_A_periph(AT91_PIN_PA1, 0);     /* MOSI */
457         at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPCK */
458
459         /* Enable SPI chip-selects */
460         for (i = 0; i < nr_devices; i++) {
461                 if (devices[i].controller_data)
462                         cs_pin = (unsigned long) devices[i].controller_data;
463                 else
464                         cs_pin = at91_spi_standard_cs[devices[i].chip_select];
465
466 #ifdef CONFIG_SPI_AT91_MANUAL_CS
467                 at91_set_gpio_output(cs_pin, 1);
468 #else
469                 at91_set_A_periph(cs_pin, 0);
470 #endif
471
472                 /* pass chip-select pin to driver */
473                 devices[i].controller_data = (void *) cs_pin;
474         }
475
476         spi_register_board_info(devices, nr_devices);
477         at91_clock_associate("spi0_clk", &at91rm9200_spi_device.dev, "spi");
478         platform_device_register(&at91rm9200_spi_device);
479 }
480 #else
481 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
482 #endif
483
484
485 /* --------------------------------------------------------------------
486  *  RTC
487  * -------------------------------------------------------------------- */
488
489 #if defined(CONFIG_RTC_DRV_AT91) || defined(CONFIG_RTC_DRV_AT91_MODULE)
490 static struct platform_device at91rm9200_rtc_device = {
491         .name           = "at91_rtc",
492         .id             = -1,
493         .num_resources  = 0,
494 };
495
496 static void __init at91_add_device_rtc(void)
497 {
498         platform_device_register(&at91rm9200_rtc_device);
499 }
500 #else
501 static void __init at91_add_device_rtc(void) {}
502 #endif
503
504
505 /* --------------------------------------------------------------------
506  *  Watchdog
507  * -------------------------------------------------------------------- */
508
509 #if defined(CONFIG_AT91_WATCHDOG) || defined(CONFIG_AT91_WATCHDOG_MODULE)
510 static struct platform_device at91rm9200_wdt_device = {
511         .name           = "at91_wdt",
512         .id             = -1,
513         .num_resources  = 0,
514 };
515
516 static void __init at91_add_device_watchdog(void)
517 {
518         platform_device_register(&at91rm9200_wdt_device);
519 }
520 #else
521 static void __init at91_add_device_watchdog(void) {}
522 #endif
523
524
525 /* --------------------------------------------------------------------
526  *  LEDs
527  * -------------------------------------------------------------------- */
528
529 #if defined(CONFIG_LEDS)
530 u8 at91_leds_cpu;
531 u8 at91_leds_timer;
532
533 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
534 {
535         at91_leds_cpu   = cpu_led;
536         at91_leds_timer = timer_led;
537 }
538 #else
539 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
540 #endif
541
542
543 /* --------------------------------------------------------------------
544  *  UART
545  * -------------------------------------------------------------------- */
546
547 #if defined(CONFIG_SERIAL_ATMEL)
548 static struct resource dbgu_resources[] = {
549         [0] = {
550                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
551                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
552                 .flags  = IORESOURCE_MEM,
553         },
554         [1] = {
555                 .start  = AT91_ID_SYS,
556                 .end    = AT91_ID_SYS,
557                 .flags  = IORESOURCE_IRQ,
558         },
559 };
560
561 static struct at91_uart_data dbgu_data = {
562         .use_dma_tx     = 0,
563         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
564 };
565
566 static struct platform_device at91rm9200_dbgu_device = {
567         .name           = "atmel_usart",
568         .id             = 0,
569         .dev            = {
570                                 .platform_data  = &dbgu_data,
571                                 .coherent_dma_mask = 0xffffffff,
572         },
573         .resource       = dbgu_resources,
574         .num_resources  = ARRAY_SIZE(dbgu_resources),
575 };
576
577 static inline void configure_dbgu_pins(void)
578 {
579         at91_set_A_periph(AT91_PIN_PA30, 0);            /* DRXD */
580         at91_set_A_periph(AT91_PIN_PA31, 1);            /* DTXD */
581 }
582
583 static struct resource uart0_resources[] = {
584         [0] = {
585                 .start  = AT91RM9200_BASE_US0,
586                 .end    = AT91RM9200_BASE_US0 + SZ_16K - 1,
587                 .flags  = IORESOURCE_MEM,
588         },
589         [1] = {
590                 .start  = AT91RM9200_ID_US0,
591                 .end    = AT91RM9200_ID_US0,
592                 .flags  = IORESOURCE_IRQ,
593         },
594 };
595
596 static struct at91_uart_data uart0_data = {
597         .use_dma_tx     = 1,
598         .use_dma_rx     = 1,
599 };
600
601 static struct platform_device at91rm9200_uart0_device = {
602         .name           = "atmel_usart",
603         .id             = 1,
604         .dev            = {
605                                 .platform_data  = &uart0_data,
606                                 .coherent_dma_mask = 0xffffffff,
607         },
608         .resource       = uart0_resources,
609         .num_resources  = ARRAY_SIZE(uart0_resources),
610 };
611
612 static inline void configure_usart0_pins(void)
613 {
614         at91_set_A_periph(AT91_PIN_PA17, 1);            /* TXD0 */
615         at91_set_A_periph(AT91_PIN_PA18, 0);            /* RXD0 */
616         at91_set_A_periph(AT91_PIN_PA20, 0);            /* CTS0 */
617
618         /*
619          * AT91RM9200 Errata #39 - RTS0 is not internally connected to PA21.
620          *  We need to drive the pin manually.  Default is off (RTS is active low).
621          */
622         at91_set_gpio_output(AT91_PIN_PA21, 1);
623 }
624
625 static struct resource uart1_resources[] = {
626         [0] = {
627                 .start  = AT91RM9200_BASE_US1,
628                 .end    = AT91RM9200_BASE_US1 + SZ_16K - 1,
629                 .flags  = IORESOURCE_MEM,
630         },
631         [1] = {
632                 .start  = AT91RM9200_ID_US1,
633                 .end    = AT91RM9200_ID_US1,
634                 .flags  = IORESOURCE_IRQ,
635         },
636 };
637
638 static struct at91_uart_data uart1_data = {
639         .use_dma_tx     = 1,
640         .use_dma_rx     = 1,
641 };
642
643 static struct platform_device at91rm9200_uart1_device = {
644         .name           = "atmel_usart",
645         .id             = 2,
646         .dev            = {
647                                 .platform_data  = &uart1_data,
648                                 .coherent_dma_mask = 0xffffffff,
649         },
650         .resource       = uart1_resources,
651         .num_resources  = ARRAY_SIZE(uart1_resources),
652 };
653
654 static inline void configure_usart1_pins(void)
655 {
656         at91_set_A_periph(AT91_PIN_PB18, 0);            /* RI1 */
657         at91_set_A_periph(AT91_PIN_PB19, 0);            /* DTR1 */
658         at91_set_A_periph(AT91_PIN_PB20, 1);            /* TXD1 */
659         at91_set_A_periph(AT91_PIN_PB21, 0);            /* RXD1 */
660         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD1 */
661         at91_set_A_periph(AT91_PIN_PB24, 0);            /* CTS1 */
662         at91_set_A_periph(AT91_PIN_PB25, 0);            /* DSR1 */
663         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS1 */
664 }
665
666 static struct resource uart2_resources[] = {
667         [0] = {
668                 .start  = AT91RM9200_BASE_US2,
669                 .end    = AT91RM9200_BASE_US2 + SZ_16K - 1,
670                 .flags  = IORESOURCE_MEM,
671         },
672         [1] = {
673                 .start  = AT91RM9200_ID_US2,
674                 .end    = AT91RM9200_ID_US2,
675                 .flags  = IORESOURCE_IRQ,
676         },
677 };
678
679 static struct at91_uart_data uart2_data = {
680         .use_dma_tx     = 1,
681         .use_dma_rx     = 1,
682 };
683
684 static struct platform_device at91rm9200_uart2_device = {
685         .name           = "atmel_usart",
686         .id             = 3,
687         .dev            = {
688                                 .platform_data  = &uart2_data,
689                                 .coherent_dma_mask = 0xffffffff,
690         },
691         .resource       = uart2_resources,
692         .num_resources  = ARRAY_SIZE(uart2_resources),
693 };
694
695 static inline void configure_usart2_pins(void)
696 {
697         at91_set_A_periph(AT91_PIN_PA22, 0);            /* RXD2 */
698         at91_set_A_periph(AT91_PIN_PA23, 1);            /* TXD2 */
699 }
700
701 static struct resource uart3_resources[] = {
702         [0] = {
703                 .start  = AT91RM9200_BASE_US3,
704                 .end    = AT91RM9200_BASE_US3 + SZ_16K - 1,
705                 .flags  = IORESOURCE_MEM,
706         },
707         [1] = {
708                 .start  = AT91RM9200_ID_US3,
709                 .end    = AT91RM9200_ID_US3,
710                 .flags  = IORESOURCE_IRQ,
711         },
712 };
713
714 static struct at91_uart_data uart3_data = {
715         .use_dma_tx     = 1,
716         .use_dma_rx     = 1,
717 };
718
719 static struct platform_device at91rm9200_uart3_device = {
720         .name           = "atmel_usart",
721         .id             = 4,
722         .dev            = {
723                                 .platform_data  = &uart3_data,
724                                 .coherent_dma_mask = 0xffffffff,
725         },
726         .resource       = uart3_resources,
727         .num_resources  = ARRAY_SIZE(uart3_resources),
728 };
729
730 static inline void configure_usart3_pins(void)
731 {
732         at91_set_B_periph(AT91_PIN_PA5, 1);             /* TXD3 */
733         at91_set_B_periph(AT91_PIN_PA6, 0);             /* RXD3 */
734 }
735
736 struct platform_device *at91_uarts[AT91_NR_UART];       /* the UARTs to use */
737 struct platform_device *at91_default_console_device;    /* the serial console device */
738
739 void __init at91_init_serial(struct at91_uart_config *config)
740 {
741         int i;
742
743         /* Fill in list of supported UARTs */
744         for (i = 0; i < config->nr_tty; i++) {
745                 switch (config->tty_map[i]) {
746                         case 0:
747                                 configure_usart0_pins();
748                                 at91_uarts[i] = &at91rm9200_uart0_device;
749                                 at91_clock_associate("usart0_clk", &at91rm9200_uart0_device.dev, "usart");
750                                 break;
751                         case 1:
752                                 configure_usart1_pins();
753                                 at91_uarts[i] = &at91rm9200_uart1_device;
754                                 at91_clock_associate("usart1_clk", &at91rm9200_uart1_device.dev, "usart");
755                                 break;
756                         case 2:
757                                 configure_usart2_pins();
758                                 at91_uarts[i] = &at91rm9200_uart2_device;
759                                 at91_clock_associate("usart2_clk", &at91rm9200_uart2_device.dev, "usart");
760                                 break;
761                         case 3:
762                                 configure_usart3_pins();
763                                 at91_uarts[i] = &at91rm9200_uart3_device;
764                                 at91_clock_associate("usart3_clk", &at91rm9200_uart3_device.dev, "usart");
765                                 break;
766                         case 4:
767                                 configure_dbgu_pins();
768                                 at91_uarts[i] = &at91rm9200_dbgu_device;
769                                 at91_clock_associate("mck", &at91rm9200_dbgu_device.dev, "usart");
770                                 break;
771                         default:
772                                 continue;
773                 }
774                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
775         }
776
777         /* Set serial console device */
778         if (config->console_tty < AT91_NR_UART)
779                 at91_default_console_device = at91_uarts[config->console_tty];
780         if (!at91_default_console_device)
781                 printk(KERN_INFO "AT91: No default serial console defined.\n");
782 }
783
784 void __init at91_add_device_serial(void)
785 {
786         int i;
787
788         for (i = 0; i < AT91_NR_UART; i++) {
789                 if (at91_uarts[i])
790                         platform_device_register(at91_uarts[i]);
791         }
792 }
793 #else
794 void __init at91_init_serial(struct at91_uart_config *config) {}
795 void __init at91_add_device_serial(void) {}
796 #endif
797
798
799 /* -------------------------------------------------------------------- */
800
801 /*
802  * These devices are always present and don't need any board-specific
803  * setup.
804  */
805 static int __init at91_add_standard_devices(void)
806 {
807         at91_add_device_rtc();
808         at91_add_device_watchdog();
809         return 0;
810 }
811
812 arch_initcall(at91_add_standard_devices);