Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[linux-2.6] / arch / arm / mach-at91 / at91sam9260_devices.c
1 /*
2  * arch/arm/mach-at91/at91sam9260_devices.c
3  *
4  *  Copyright (C) 2006 Atmel
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  */
12 #include <asm/mach/arch.h>
13 #include <asm/mach/map.h>
14
15 #include <linux/platform_device.h>
16
17 #include <asm/arch/board.h>
18 #include <asm/arch/gpio.h>
19 #include <asm/arch/at91sam9260.h>
20 #include <asm/arch/at91sam926x_mc.h>
21 #include <asm/arch/at91sam9260_matrix.h>
22
23 #include "generic.h"
24
25 #define SZ_512  0x00000200
26 #define SZ_256  0x00000100
27 #define SZ_16   0x00000010
28
29 /* --------------------------------------------------------------------
30  *  USB Host
31  * -------------------------------------------------------------------- */
32
33 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
34 static u64 ohci_dmamask = 0xffffffffUL;
35 static struct at91_usbh_data usbh_data;
36
37 static struct resource usbh_resources[] = {
38         [0] = {
39                 .start  = AT91SAM9260_UHP_BASE,
40                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
41                 .flags  = IORESOURCE_MEM,
42         },
43         [1] = {
44                 .start  = AT91SAM9260_ID_UHP,
45                 .end    = AT91SAM9260_ID_UHP,
46                 .flags  = IORESOURCE_IRQ,
47         },
48 };
49
50 static struct platform_device at91_usbh_device = {
51         .name           = "at91_ohci",
52         .id             = -1,
53         .dev            = {
54                                 .dma_mask               = &ohci_dmamask,
55                                 .coherent_dma_mask      = 0xffffffff,
56                                 .platform_data          = &usbh_data,
57         },
58         .resource       = usbh_resources,
59         .num_resources  = ARRAY_SIZE(usbh_resources),
60 };
61
62 void __init at91_add_device_usbh(struct at91_usbh_data *data)
63 {
64         if (!data)
65                 return;
66
67         usbh_data = *data;
68         platform_device_register(&at91_usbh_device);
69 }
70 #else
71 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
72 #endif
73
74
75 /* --------------------------------------------------------------------
76  *  USB Device (Gadget)
77  * -------------------------------------------------------------------- */
78
79 #ifdef CONFIG_USB_GADGET_AT91
80 static struct at91_udc_data udc_data;
81
82 static struct resource udc_resources[] = {
83         [0] = {
84                 .start  = AT91SAM9260_BASE_UDP,
85                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
86                 .flags  = IORESOURCE_MEM,
87         },
88         [1] = {
89                 .start  = AT91SAM9260_ID_UDP,
90                 .end    = AT91SAM9260_ID_UDP,
91                 .flags  = IORESOURCE_IRQ,
92         },
93 };
94
95 static struct platform_device at91_udc_device = {
96         .name           = "at91_udc",
97         .id             = -1,
98         .dev            = {
99                                 .platform_data          = &udc_data,
100         },
101         .resource       = udc_resources,
102         .num_resources  = ARRAY_SIZE(udc_resources),
103 };
104
105 void __init at91_add_device_udc(struct at91_udc_data *data)
106 {
107         if (!data)
108                 return;
109
110         if (data->vbus_pin) {
111                 at91_set_gpio_input(data->vbus_pin, 0);
112                 at91_set_deglitch(data->vbus_pin, 1);
113         }
114
115         /* Pullup pin is handled internally by USB device peripheral */
116
117         udc_data = *data;
118         platform_device_register(&at91_udc_device);
119 }
120 #else
121 void __init at91_add_device_udc(struct at91_udc_data *data) {}
122 #endif
123
124
125 /* --------------------------------------------------------------------
126  *  Ethernet
127  * -------------------------------------------------------------------- */
128
129 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
130 static u64 eth_dmamask = 0xffffffffUL;
131 static struct at91_eth_data eth_data;
132
133 static struct resource eth_resources[] = {
134         [0] = {
135                 .start  = AT91SAM9260_BASE_EMAC,
136                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
137                 .flags  = IORESOURCE_MEM,
138         },
139         [1] = {
140                 .start  = AT91SAM9260_ID_EMAC,
141                 .end    = AT91SAM9260_ID_EMAC,
142                 .flags  = IORESOURCE_IRQ,
143         },
144 };
145
146 static struct platform_device at91sam9260_eth_device = {
147         .name           = "macb",
148         .id             = -1,
149         .dev            = {
150                                 .dma_mask               = &eth_dmamask,
151                                 .coherent_dma_mask      = 0xffffffff,
152                                 .platform_data          = &eth_data,
153         },
154         .resource       = eth_resources,
155         .num_resources  = ARRAY_SIZE(eth_resources),
156 };
157
158 void __init at91_add_device_eth(struct at91_eth_data *data)
159 {
160         if (!data)
161                 return;
162
163         if (data->phy_irq_pin) {
164                 at91_set_gpio_input(data->phy_irq_pin, 0);
165                 at91_set_deglitch(data->phy_irq_pin, 1);
166         }
167
168         /* Pins used for MII and RMII */
169         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
170         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
171         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
172         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
173         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
174         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
175         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
176         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
177         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
178         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
179
180         if (!data->is_rmii) {
181                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
182                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
183                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
184                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
185                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
186                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
187                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
188                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
189         }
190
191         eth_data = *data;
192         platform_device_register(&at91sam9260_eth_device);
193 }
194 #else
195 void __init at91_add_device_eth(struct at91_eth_data *data) {}
196 #endif
197
198
199 /* --------------------------------------------------------------------
200  *  MMC / SD
201  * -------------------------------------------------------------------- */
202
203 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
204 static u64 mmc_dmamask = 0xffffffffUL;
205 static struct at91_mmc_data mmc_data;
206
207 static struct resource mmc_resources[] = {
208         [0] = {
209                 .start  = AT91SAM9260_BASE_MCI,
210                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
211                 .flags  = IORESOURCE_MEM,
212         },
213         [1] = {
214                 .start  = AT91SAM9260_ID_MCI,
215                 .end    = AT91SAM9260_ID_MCI,
216                 .flags  = IORESOURCE_IRQ,
217         },
218 };
219
220 static struct platform_device at91sam9260_mmc_device = {
221         .name           = "at91_mci",
222         .id             = -1,
223         .dev            = {
224                                 .dma_mask               = &mmc_dmamask,
225                                 .coherent_dma_mask      = 0xffffffff,
226                                 .platform_data          = &mmc_data,
227         },
228         .resource       = mmc_resources,
229         .num_resources  = ARRAY_SIZE(mmc_resources),
230 };
231
232 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
233 {
234         if (!data)
235                 return;
236
237         /* input/irq */
238         if (data->det_pin) {
239                 at91_set_gpio_input(data->det_pin, 1);
240                 at91_set_deglitch(data->det_pin, 1);
241         }
242         if (data->wp_pin)
243                 at91_set_gpio_input(data->wp_pin, 1);
244         if (data->vcc_pin)
245                 at91_set_gpio_output(data->vcc_pin, 0);
246
247         /* CLK */
248         at91_set_A_periph(AT91_PIN_PA8, 0);
249
250         if (data->slot_b) {
251                 /* CMD */
252                 at91_set_B_periph(AT91_PIN_PA1, 1);
253
254                 /* DAT0, maybe DAT1..DAT3 */
255                 at91_set_B_periph(AT91_PIN_PA0, 1);
256                 if (data->wire4) {
257                         at91_set_B_periph(AT91_PIN_PA5, 1);
258                         at91_set_B_periph(AT91_PIN_PA4, 1);
259                         at91_set_B_periph(AT91_PIN_PA3, 1);
260                 }
261         } else {
262                 /* CMD */
263                 at91_set_A_periph(AT91_PIN_PA7, 1);
264
265                 /* DAT0, maybe DAT1..DAT3 */
266                 at91_set_A_periph(AT91_PIN_PA6, 1);
267                 if (data->wire4) {
268                         at91_set_A_periph(AT91_PIN_PA9, 1);
269                         at91_set_A_periph(AT91_PIN_PA10, 1);
270                         at91_set_A_periph(AT91_PIN_PA11, 1);
271                 }
272         }
273
274         mmc_data = *data;
275         platform_device_register(&at91sam9260_mmc_device);
276 }
277 #else
278 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
279 #endif
280
281
282 /* --------------------------------------------------------------------
283  *  NAND / SmartMedia
284  * -------------------------------------------------------------------- */
285
286 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
287 static struct at91_nand_data nand_data;
288
289 #define NAND_BASE       AT91_CHIPSELECT_3
290
291 static struct resource nand_resources[] = {
292         {
293                 .start  = NAND_BASE,
294                 .end    = NAND_BASE + SZ_8M - 1,
295                 .flags  = IORESOURCE_MEM,
296         }
297 };
298
299 static struct platform_device at91sam9260_nand_device = {
300         .name           = "at91_nand",
301         .id             = -1,
302         .dev            = {
303                                 .platform_data  = &nand_data,
304         },
305         .resource       = nand_resources,
306         .num_resources  = ARRAY_SIZE(nand_resources),
307 };
308
309 void __init at91_add_device_nand(struct at91_nand_data *data)
310 {
311         unsigned long csa, mode;
312
313         if (!data)
314                 return;
315
316         csa = at91_sys_read(AT91_MATRIX_EBICSA);
317         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
318
319         /* set the bus interface characteristics */
320         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
321                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
322
323         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
324                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
325
326         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
327
328         if (data->bus_width_16)
329                 mode = AT91_SMC_DBW_16;
330         else
331                 mode = AT91_SMC_DBW_8;
332         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
333
334         /* enable pin */
335         if (data->enable_pin)
336                 at91_set_gpio_output(data->enable_pin, 1);
337
338         /* ready/busy pin */
339         if (data->rdy_pin)
340                 at91_set_gpio_input(data->rdy_pin, 1);
341
342         /* card detect pin */
343         if (data->det_pin)
344                 at91_set_gpio_input(data->det_pin, 1);
345
346         nand_data = *data;
347         platform_device_register(&at91sam9260_nand_device);
348 }
349 #else
350 void __init at91_add_device_nand(struct at91_nand_data *data) {}
351 #endif
352
353
354 /* --------------------------------------------------------------------
355  *  TWI (i2c)
356  * -------------------------------------------------------------------- */
357
358 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
359
360 static struct resource twi_resources[] = {
361         [0] = {
362                 .start  = AT91SAM9260_BASE_TWI,
363                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
364                 .flags  = IORESOURCE_MEM,
365         },
366         [1] = {
367                 .start  = AT91SAM9260_ID_TWI,
368                 .end    = AT91SAM9260_ID_TWI,
369                 .flags  = IORESOURCE_IRQ,
370         },
371 };
372
373 static struct platform_device at91sam9260_twi_device = {
374         .name           = "at91_i2c",
375         .id             = -1,
376         .resource       = twi_resources,
377         .num_resources  = ARRAY_SIZE(twi_resources),
378 };
379
380 void __init at91_add_device_i2c(void)
381 {
382         /* pins used for TWI interface */
383         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
384         at91_set_multi_drive(AT91_PIN_PA23, 1);
385
386         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
387         at91_set_multi_drive(AT91_PIN_PA24, 1);
388
389         platform_device_register(&at91sam9260_twi_device);
390 }
391 #else
392 void __init at91_add_device_i2c(void) {}
393 #endif
394
395
396 /* --------------------------------------------------------------------
397  *  SPI
398  * -------------------------------------------------------------------- */
399
400 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
401 static u64 spi_dmamask = 0xffffffffUL;
402
403 static struct resource spi0_resources[] = {
404         [0] = {
405                 .start  = AT91SAM9260_BASE_SPI0,
406                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
407                 .flags  = IORESOURCE_MEM,
408         },
409         [1] = {
410                 .start  = AT91SAM9260_ID_SPI0,
411                 .end    = AT91SAM9260_ID_SPI0,
412                 .flags  = IORESOURCE_IRQ,
413         },
414 };
415
416 static struct platform_device at91sam9260_spi0_device = {
417         .name           = "atmel_spi",
418         .id             = 0,
419         .dev            = {
420                                 .dma_mask               = &spi_dmamask,
421                                 .coherent_dma_mask      = 0xffffffff,
422         },
423         .resource       = spi0_resources,
424         .num_resources  = ARRAY_SIZE(spi0_resources),
425 };
426
427 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
428
429 static struct resource spi1_resources[] = {
430         [0] = {
431                 .start  = AT91SAM9260_BASE_SPI1,
432                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
433                 .flags  = IORESOURCE_MEM,
434         },
435         [1] = {
436                 .start  = AT91SAM9260_ID_SPI1,
437                 .end    = AT91SAM9260_ID_SPI1,
438                 .flags  = IORESOURCE_IRQ,
439         },
440 };
441
442 static struct platform_device at91sam9260_spi1_device = {
443         .name           = "atmel_spi",
444         .id             = 1,
445         .dev            = {
446                                 .dma_mask               = &spi_dmamask,
447                                 .coherent_dma_mask      = 0xffffffff,
448         },
449         .resource       = spi1_resources,
450         .num_resources  = ARRAY_SIZE(spi1_resources),
451 };
452
453 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
454
455 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
456 {
457         int i;
458         unsigned long cs_pin;
459         short enable_spi0 = 0;
460         short enable_spi1 = 0;
461
462         /* Choose SPI chip-selects */
463         for (i = 0; i < nr_devices; i++) {
464                 if (devices[i].controller_data)
465                         cs_pin = (unsigned long) devices[i].controller_data;
466                 else if (devices[i].bus_num == 0)
467                         cs_pin = spi0_standard_cs[devices[i].chip_select];
468                 else
469                         cs_pin = spi1_standard_cs[devices[i].chip_select];
470
471                 if (devices[i].bus_num == 0)
472                         enable_spi0 = 1;
473                 else
474                         enable_spi1 = 1;
475
476                 /* enable chip-select pin */
477                 at91_set_gpio_output(cs_pin, 1);
478
479                 /* pass chip-select pin to driver */
480                 devices[i].controller_data = (void *) cs_pin;
481         }
482
483         spi_register_board_info(devices, nr_devices);
484
485         /* Configure SPI bus(es) */
486         if (enable_spi0) {
487                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
488                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
489                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
490
491                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
492                 platform_device_register(&at91sam9260_spi0_device);
493         }
494         if (enable_spi1) {
495                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
496                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
497                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
498
499                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
500                 platform_device_register(&at91sam9260_spi1_device);
501         }
502 }
503 #else
504 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
505 #endif
506
507
508 /* --------------------------------------------------------------------
509  *  LEDs
510  * -------------------------------------------------------------------- */
511
512 #if defined(CONFIG_LEDS)
513 u8 at91_leds_cpu;
514 u8 at91_leds_timer;
515
516 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
517 {
518         /* Enable GPIO to access the LEDs */
519         at91_set_gpio_output(cpu_led, 1);
520         at91_set_gpio_output(timer_led, 1);
521
522         at91_leds_cpu   = cpu_led;
523         at91_leds_timer = timer_led;
524 }
525 #else
526 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
527 #endif
528
529
530 /* --------------------------------------------------------------------
531  *  UART
532  * -------------------------------------------------------------------- */
533 #if defined(CONFIG_SERIAL_ATMEL)
534 static struct resource dbgu_resources[] = {
535         [0] = {
536                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
537                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
538                 .flags  = IORESOURCE_MEM,
539         },
540         [1] = {
541                 .start  = AT91_ID_SYS,
542                 .end    = AT91_ID_SYS,
543                 .flags  = IORESOURCE_IRQ,
544         },
545 };
546
547 static struct atmel_uart_data dbgu_data = {
548         .use_dma_tx     = 0,
549         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
550         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
551 };
552
553 static struct platform_device at91sam9260_dbgu_device = {
554         .name           = "atmel_usart",
555         .id             = 0,
556         .dev            = {
557                                 .platform_data  = &dbgu_data,
558                                 .coherent_dma_mask = 0xffffffff,
559         },
560         .resource       = dbgu_resources,
561         .num_resources  = ARRAY_SIZE(dbgu_resources),
562 };
563
564 static inline void configure_dbgu_pins(void)
565 {
566         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
567         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
568 }
569
570 static struct resource uart0_resources[] = {
571         [0] = {
572                 .start  = AT91SAM9260_BASE_US0,
573                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
574                 .flags  = IORESOURCE_MEM,
575         },
576         [1] = {
577                 .start  = AT91SAM9260_ID_US0,
578                 .end    = AT91SAM9260_ID_US0,
579                 .flags  = IORESOURCE_IRQ,
580         },
581 };
582
583 static struct atmel_uart_data uart0_data = {
584         .use_dma_tx     = 1,
585         .use_dma_rx     = 1,
586 };
587
588 static struct platform_device at91sam9260_uart0_device = {
589         .name           = "atmel_usart",
590         .id             = 1,
591         .dev            = {
592                                 .platform_data  = &uart0_data,
593                                 .coherent_dma_mask = 0xffffffff,
594         },
595         .resource       = uart0_resources,
596         .num_resources  = ARRAY_SIZE(uart0_resources),
597 };
598
599 static inline void configure_usart0_pins(void)
600 {
601         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
602         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
603         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS0 */
604         at91_set_A_periph(AT91_PIN_PB27, 0);            /* CTS0 */
605         at91_set_A_periph(AT91_PIN_PB24, 0);            /* DTR0 */
606         at91_set_A_periph(AT91_PIN_PB22, 0);            /* DSR0 */
607         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD0 */
608         at91_set_A_periph(AT91_PIN_PB25, 0);            /* RI0 */
609 }
610
611 static struct resource uart1_resources[] = {
612         [0] = {
613                 .start  = AT91SAM9260_BASE_US1,
614                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
615                 .flags  = IORESOURCE_MEM,
616         },
617         [1] = {
618                 .start  = AT91SAM9260_ID_US1,
619                 .end    = AT91SAM9260_ID_US1,
620                 .flags  = IORESOURCE_IRQ,
621         },
622 };
623
624 static struct atmel_uart_data uart1_data = {
625         .use_dma_tx     = 1,
626         .use_dma_rx     = 1,
627 };
628
629 static struct platform_device at91sam9260_uart1_device = {
630         .name           = "atmel_usart",
631         .id             = 2,
632         .dev            = {
633                                 .platform_data  = &uart1_data,
634                                 .coherent_dma_mask = 0xffffffff,
635         },
636         .resource       = uart1_resources,
637         .num_resources  = ARRAY_SIZE(uart1_resources),
638 };
639
640 static inline void configure_usart1_pins(void)
641 {
642         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
643         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
644         at91_set_A_periph(AT91_PIN_PB28, 0);            /* RTS1 */
645         at91_set_A_periph(AT91_PIN_PB29, 0);            /* CTS1 */
646 }
647
648 static struct resource uart2_resources[] = {
649         [0] = {
650                 .start  = AT91SAM9260_BASE_US2,
651                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
652                 .flags  = IORESOURCE_MEM,
653         },
654         [1] = {
655                 .start  = AT91SAM9260_ID_US2,
656                 .end    = AT91SAM9260_ID_US2,
657                 .flags  = IORESOURCE_IRQ,
658         },
659 };
660
661 static struct atmel_uart_data uart2_data = {
662         .use_dma_tx     = 1,
663         .use_dma_rx     = 1,
664 };
665
666 static struct platform_device at91sam9260_uart2_device = {
667         .name           = "atmel_usart",
668         .id             = 3,
669         .dev            = {
670                                 .platform_data  = &uart2_data,
671                                 .coherent_dma_mask = 0xffffffff,
672         },
673         .resource       = uart2_resources,
674         .num_resources  = ARRAY_SIZE(uart2_resources),
675 };
676
677 static inline void configure_usart2_pins(void)
678 {
679         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
680         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
681 }
682
683 static struct resource uart3_resources[] = {
684         [0] = {
685                 .start  = AT91SAM9260_BASE_US3,
686                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
687                 .flags  = IORESOURCE_MEM,
688         },
689         [1] = {
690                 .start  = AT91SAM9260_ID_US3,
691                 .end    = AT91SAM9260_ID_US3,
692                 .flags  = IORESOURCE_IRQ,
693         },
694 };
695
696 static struct atmel_uart_data uart3_data = {
697         .use_dma_tx     = 1,
698         .use_dma_rx     = 1,
699 };
700
701 static struct platform_device at91sam9260_uart3_device = {
702         .name           = "atmel_usart",
703         .id             = 4,
704         .dev            = {
705                                 .platform_data  = &uart3_data,
706                                 .coherent_dma_mask = 0xffffffff,
707         },
708         .resource       = uart3_resources,
709         .num_resources  = ARRAY_SIZE(uart3_resources),
710 };
711
712 static inline void configure_usart3_pins(void)
713 {
714         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
715         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
716 }
717
718 static struct resource uart4_resources[] = {
719         [0] = {
720                 .start  = AT91SAM9260_BASE_US4,
721                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
722                 .flags  = IORESOURCE_MEM,
723         },
724         [1] = {
725                 .start  = AT91SAM9260_ID_US4,
726                 .end    = AT91SAM9260_ID_US4,
727                 .flags  = IORESOURCE_IRQ,
728         },
729 };
730
731 static struct atmel_uart_data uart4_data = {
732         .use_dma_tx     = 1,
733         .use_dma_rx     = 1,
734 };
735
736 static struct platform_device at91sam9260_uart4_device = {
737         .name           = "atmel_usart",
738         .id             = 5,
739         .dev            = {
740                                 .platform_data  = &uart4_data,
741                                 .coherent_dma_mask = 0xffffffff,
742         },
743         .resource       = uart4_resources,
744         .num_resources  = ARRAY_SIZE(uart4_resources),
745 };
746
747 static inline void configure_usart4_pins(void)
748 {
749         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
750         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
751 }
752
753 static struct resource uart5_resources[] = {
754         [0] = {
755                 .start  = AT91SAM9260_BASE_US5,
756                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
757                 .flags  = IORESOURCE_MEM,
758         },
759         [1] = {
760                 .start  = AT91SAM9260_ID_US5,
761                 .end    = AT91SAM9260_ID_US5,
762                 .flags  = IORESOURCE_IRQ,
763         },
764 };
765
766 static struct atmel_uart_data uart5_data = {
767         .use_dma_tx     = 1,
768         .use_dma_rx     = 1,
769 };
770
771 static struct platform_device at91sam9260_uart5_device = {
772         .name           = "atmel_usart",
773         .id             = 6,
774         .dev            = {
775                                 .platform_data  = &uart5_data,
776                                 .coherent_dma_mask = 0xffffffff,
777         },
778         .resource       = uart5_resources,
779         .num_resources  = ARRAY_SIZE(uart5_resources),
780 };
781
782 static inline void configure_usart5_pins(void)
783 {
784         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
785         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
786 }
787
788 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
789 struct platform_device *atmel_default_console_device;   /* the serial console device */
790
791 void __init at91_init_serial(struct at91_uart_config *config)
792 {
793         int i;
794
795         /* Fill in list of supported UARTs */
796         for (i = 0; i < config->nr_tty; i++) {
797                 switch (config->tty_map[i]) {
798                         case 0:
799                                 configure_usart0_pins();
800                                 at91_uarts[i] = &at91sam9260_uart0_device;
801                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
802                                 break;
803                         case 1:
804                                 configure_usart1_pins();
805                                 at91_uarts[i] = &at91sam9260_uart1_device;
806                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
807                                 break;
808                         case 2:
809                                 configure_usart2_pins();
810                                 at91_uarts[i] = &at91sam9260_uart2_device;
811                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
812                                 break;
813                         case 3:
814                                 configure_usart3_pins();
815                                 at91_uarts[i] = &at91sam9260_uart3_device;
816                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
817                                 break;
818                         case 4:
819                                 configure_usart4_pins();
820                                 at91_uarts[i] = &at91sam9260_uart4_device;
821                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
822                                 break;
823                         case 5:
824                                 configure_usart5_pins();
825                                 at91_uarts[i] = &at91sam9260_uart5_device;
826                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
827                                 break;
828                         case 6:
829                                 configure_dbgu_pins();
830                                 at91_uarts[i] = &at91sam9260_dbgu_device;
831                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
832                                 break;
833                         default:
834                                 continue;
835                 }
836                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
837         }
838
839         /* Set serial console device */
840         if (config->console_tty < ATMEL_MAX_UART)
841                 atmel_default_console_device = at91_uarts[config->console_tty];
842         if (!atmel_default_console_device)
843                 printk(KERN_INFO "AT91: No default serial console defined.\n");
844 }
845
846 void __init at91_add_device_serial(void)
847 {
848         int i;
849
850         for (i = 0; i < ATMEL_MAX_UART; i++) {
851                 if (at91_uarts[i])
852                         platform_device_register(at91_uarts[i]);
853         }
854 }
855 #else
856 void __init at91_init_serial(struct at91_uart_config *config) {}
857 void __init at91_add_device_serial(void) {}
858 #endif
859
860
861 /* -------------------------------------------------------------------- */
862 /*
863  * These devices are always present and don't need any board-specific
864  * setup.
865  */
866 static int __init at91_add_standard_devices(void)
867 {
868         return 0;
869 }
870
871 arch_initcall(at91_add_standard_devices);