Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-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/dma-mapping.h>
16 #include <linux/platform_device.h>
17 #include <linux/i2c-gpio.h>
18
19 #include <asm/arch/board.h>
20 #include <asm/arch/gpio.h>
21 #include <asm/arch/at91sam9260.h>
22 #include <asm/arch/at91sam926x_mc.h>
23 #include <asm/arch/at91sam9260_matrix.h>
24
25 #include "generic.h"
26
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 = DMA_BIT_MASK(32);
34 static struct at91_usbh_data usbh_data;
35
36 static struct resource usbh_resources[] = {
37         [0] = {
38                 .start  = AT91SAM9260_UHP_BASE,
39                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
40                 .flags  = IORESOURCE_MEM,
41         },
42         [1] = {
43                 .start  = AT91SAM9260_ID_UHP,
44                 .end    = AT91SAM9260_ID_UHP,
45                 .flags  = IORESOURCE_IRQ,
46         },
47 };
48
49 static struct platform_device at91_usbh_device = {
50         .name           = "at91_ohci",
51         .id             = -1,
52         .dev            = {
53                                 .dma_mask               = &ohci_dmamask,
54                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
55                                 .platform_data          = &usbh_data,
56         },
57         .resource       = usbh_resources,
58         .num_resources  = ARRAY_SIZE(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(&at91_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 udc_resources[] = {
82         [0] = {
83                 .start  = AT91SAM9260_BASE_UDP,
84                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
85                 .flags  = IORESOURCE_MEM,
86         },
87         [1] = {
88                 .start  = AT91SAM9260_ID_UDP,
89                 .end    = AT91SAM9260_ID_UDP,
90                 .flags  = IORESOURCE_IRQ,
91         },
92 };
93
94 static struct platform_device at91_udc_device = {
95         .name           = "at91_udc",
96         .id             = -1,
97         .dev            = {
98                                 .platform_data          = &udc_data,
99         },
100         .resource       = udc_resources,
101         .num_resources  = ARRAY_SIZE(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
114         /* Pullup pin is handled internally by USB device peripheral */
115
116         udc_data = *data;
117         platform_device_register(&at91_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_MACB) || defined(CONFIG_MACB_MODULE)
129 static u64 eth_dmamask = DMA_BIT_MASK(32);
130 static struct at91_eth_data eth_data;
131
132 static struct resource eth_resources[] = {
133         [0] = {
134                 .start  = AT91SAM9260_BASE_EMAC,
135                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
136                 .flags  = IORESOURCE_MEM,
137         },
138         [1] = {
139                 .start  = AT91SAM9260_ID_EMAC,
140                 .end    = AT91SAM9260_ID_EMAC,
141                 .flags  = IORESOURCE_IRQ,
142         },
143 };
144
145 static struct platform_device at91sam9260_eth_device = {
146         .name           = "macb",
147         .id             = -1,
148         .dev            = {
149                                 .dma_mask               = &eth_dmamask,
150                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
151                                 .platform_data          = &eth_data,
152         },
153         .resource       = eth_resources,
154         .num_resources  = ARRAY_SIZE(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_PA19, 0);    /* ETXCK_EREFCK */
169         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
170         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
171         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
172         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
173         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
174         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
175         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
176         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
177         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
178
179         if (!data->is_rmii) {
180                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
181                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
182                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
183                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
184                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
185                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
186                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
187                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
188         }
189
190         eth_data = *data;
191         platform_device_register(&at91sam9260_eth_device);
192 }
193 #else
194 void __init at91_add_device_eth(struct at91_eth_data *data) {}
195 #endif
196
197
198 /* --------------------------------------------------------------------
199  *  MMC / SD
200  * -------------------------------------------------------------------- */
201
202 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
203 static u64 mmc_dmamask = DMA_BIT_MASK(32);
204 static struct at91_mmc_data mmc_data;
205
206 static struct resource mmc_resources[] = {
207         [0] = {
208                 .start  = AT91SAM9260_BASE_MCI,
209                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
210                 .flags  = IORESOURCE_MEM,
211         },
212         [1] = {
213                 .start  = AT91SAM9260_ID_MCI,
214                 .end    = AT91SAM9260_ID_MCI,
215                 .flags  = IORESOURCE_IRQ,
216         },
217 };
218
219 static struct platform_device at91sam9260_mmc_device = {
220         .name           = "at91_mci",
221         .id             = -1,
222         .dev            = {
223                                 .dma_mask               = &mmc_dmamask,
224                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
225                                 .platform_data          = &mmc_data,
226         },
227         .resource       = mmc_resources,
228         .num_resources  = ARRAY_SIZE(mmc_resources),
229 };
230
231 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
232 {
233         if (!data)
234                 return;
235
236         /* input/irq */
237         if (data->det_pin) {
238                 at91_set_gpio_input(data->det_pin, 1);
239                 at91_set_deglitch(data->det_pin, 1);
240         }
241         if (data->wp_pin)
242                 at91_set_gpio_input(data->wp_pin, 1);
243         if (data->vcc_pin)
244                 at91_set_gpio_output(data->vcc_pin, 0);
245
246         /* CLK */
247         at91_set_A_periph(AT91_PIN_PA8, 0);
248
249         if (data->slot_b) {
250                 /* CMD */
251                 at91_set_B_periph(AT91_PIN_PA1, 1);
252
253                 /* DAT0, maybe DAT1..DAT3 */
254                 at91_set_B_periph(AT91_PIN_PA0, 1);
255                 if (data->wire4) {
256                         at91_set_B_periph(AT91_PIN_PA5, 1);
257                         at91_set_B_periph(AT91_PIN_PA4, 1);
258                         at91_set_B_periph(AT91_PIN_PA3, 1);
259                 }
260         } else {
261                 /* CMD */
262                 at91_set_A_periph(AT91_PIN_PA7, 1);
263
264                 /* DAT0, maybe DAT1..DAT3 */
265                 at91_set_A_periph(AT91_PIN_PA6, 1);
266                 if (data->wire4) {
267                         at91_set_A_periph(AT91_PIN_PA9, 1);
268                         at91_set_A_periph(AT91_PIN_PA10, 1);
269                         at91_set_A_periph(AT91_PIN_PA11, 1);
270                 }
271         }
272
273         mmc_data = *data;
274         platform_device_register(&at91sam9260_mmc_device);
275 }
276 #else
277 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
278 #endif
279
280
281 /* --------------------------------------------------------------------
282  *  NAND / SmartMedia
283  * -------------------------------------------------------------------- */
284
285 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
286 static struct at91_nand_data nand_data;
287
288 #define NAND_BASE       AT91_CHIPSELECT_3
289
290 static struct resource nand_resources[] = {
291         {
292                 .start  = NAND_BASE,
293                 .end    = NAND_BASE + SZ_256M - 1,
294                 .flags  = IORESOURCE_MEM,
295         }
296 };
297
298 static struct platform_device at91sam9260_nand_device = {
299         .name           = "at91_nand",
300         .id             = -1,
301         .dev            = {
302                                 .platform_data  = &nand_data,
303         },
304         .resource       = nand_resources,
305         .num_resources  = ARRAY_SIZE(nand_resources),
306 };
307
308 void __init at91_add_device_nand(struct at91_nand_data *data)
309 {
310         unsigned long csa, mode;
311
312         if (!data)
313                 return;
314
315         csa = at91_sys_read(AT91_MATRIX_EBICSA);
316         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
317
318         /* set the bus interface characteristics */
319         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
320                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
321
322         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
323                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
324
325         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
326
327         if (data->bus_width_16)
328                 mode = AT91_SMC_DBW_16;
329         else
330                 mode = AT91_SMC_DBW_8;
331         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
332
333         /* enable pin */
334         if (data->enable_pin)
335                 at91_set_gpio_output(data->enable_pin, 1);
336
337         /* ready/busy pin */
338         if (data->rdy_pin)
339                 at91_set_gpio_input(data->rdy_pin, 1);
340
341         /* card detect pin */
342         if (data->det_pin)
343                 at91_set_gpio_input(data->det_pin, 1);
344
345         nand_data = *data;
346         platform_device_register(&at91sam9260_nand_device);
347 }
348 #else
349 void __init at91_add_device_nand(struct at91_nand_data *data) {}
350 #endif
351
352
353 /* --------------------------------------------------------------------
354  *  TWI (i2c)
355  * -------------------------------------------------------------------- */
356
357 /*
358  * Prefer the GPIO code since the TWI controller isn't robust
359  * (gets overruns and underruns under load) and can only issue
360  * repeated STARTs in one scenario (the driver doesn't yet handle them).
361  */
362
363 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
364
365 static struct i2c_gpio_platform_data pdata = {
366         .sda_pin                = AT91_PIN_PA23,
367         .sda_is_open_drain      = 1,
368         .scl_pin                = AT91_PIN_PA24,
369         .scl_is_open_drain      = 1,
370         .udelay                 = 2,            /* ~100 kHz */
371 };
372
373 static struct platform_device at91sam9260_twi_device = {
374         .name                   = "i2c-gpio",
375         .id                     = -1,
376         .dev.platform_data      = &pdata,
377 };
378
379 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
380 {
381         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
382         at91_set_multi_drive(AT91_PIN_PA23, 1);
383
384         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
385         at91_set_multi_drive(AT91_PIN_PA24, 1);
386
387         i2c_register_board_info(0, devices, nr_devices);
388         platform_device_register(&at91sam9260_twi_device);
389 }
390
391 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
392
393 static struct resource twi_resources[] = {
394         [0] = {
395                 .start  = AT91SAM9260_BASE_TWI,
396                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
397                 .flags  = IORESOURCE_MEM,
398         },
399         [1] = {
400                 .start  = AT91SAM9260_ID_TWI,
401                 .end    = AT91SAM9260_ID_TWI,
402                 .flags  = IORESOURCE_IRQ,
403         },
404 };
405
406 static struct platform_device at91sam9260_twi_device = {
407         .name           = "at91_i2c",
408         .id             = -1,
409         .resource       = twi_resources,
410         .num_resources  = ARRAY_SIZE(twi_resources),
411 };
412
413 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
414 {
415         /* pins used for TWI interface */
416         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
417         at91_set_multi_drive(AT91_PIN_PA23, 1);
418
419         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
420         at91_set_multi_drive(AT91_PIN_PA24, 1);
421
422         i2c_register_board_info(0, devices, nr_devices);
423         platform_device_register(&at91sam9260_twi_device);
424 }
425 #else
426 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
427 #endif
428
429
430 /* --------------------------------------------------------------------
431  *  SPI
432  * -------------------------------------------------------------------- */
433
434 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
435 static u64 spi_dmamask = DMA_BIT_MASK(32);
436
437 static struct resource spi0_resources[] = {
438         [0] = {
439                 .start  = AT91SAM9260_BASE_SPI0,
440                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
441                 .flags  = IORESOURCE_MEM,
442         },
443         [1] = {
444                 .start  = AT91SAM9260_ID_SPI0,
445                 .end    = AT91SAM9260_ID_SPI0,
446                 .flags  = IORESOURCE_IRQ,
447         },
448 };
449
450 static struct platform_device at91sam9260_spi0_device = {
451         .name           = "atmel_spi",
452         .id             = 0,
453         .dev            = {
454                                 .dma_mask               = &spi_dmamask,
455                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
456         },
457         .resource       = spi0_resources,
458         .num_resources  = ARRAY_SIZE(spi0_resources),
459 };
460
461 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
462
463 static struct resource spi1_resources[] = {
464         [0] = {
465                 .start  = AT91SAM9260_BASE_SPI1,
466                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
467                 .flags  = IORESOURCE_MEM,
468         },
469         [1] = {
470                 .start  = AT91SAM9260_ID_SPI1,
471                 .end    = AT91SAM9260_ID_SPI1,
472                 .flags  = IORESOURCE_IRQ,
473         },
474 };
475
476 static struct platform_device at91sam9260_spi1_device = {
477         .name           = "atmel_spi",
478         .id             = 1,
479         .dev            = {
480                                 .dma_mask               = &spi_dmamask,
481                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
482         },
483         .resource       = spi1_resources,
484         .num_resources  = ARRAY_SIZE(spi1_resources),
485 };
486
487 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
488
489 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
490 {
491         int i;
492         unsigned long cs_pin;
493         short enable_spi0 = 0;
494         short enable_spi1 = 0;
495
496         /* Choose SPI chip-selects */
497         for (i = 0; i < nr_devices; i++) {
498                 if (devices[i].controller_data)
499                         cs_pin = (unsigned long) devices[i].controller_data;
500                 else if (devices[i].bus_num == 0)
501                         cs_pin = spi0_standard_cs[devices[i].chip_select];
502                 else
503                         cs_pin = spi1_standard_cs[devices[i].chip_select];
504
505                 if (devices[i].bus_num == 0)
506                         enable_spi0 = 1;
507                 else
508                         enable_spi1 = 1;
509
510                 /* enable chip-select pin */
511                 at91_set_gpio_output(cs_pin, 1);
512
513                 /* pass chip-select pin to driver */
514                 devices[i].controller_data = (void *) cs_pin;
515         }
516
517         spi_register_board_info(devices, nr_devices);
518
519         /* Configure SPI bus(es) */
520         if (enable_spi0) {
521                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
522                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
523                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
524
525                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
526                 platform_device_register(&at91sam9260_spi0_device);
527         }
528         if (enable_spi1) {
529                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
530                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
531                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
532
533                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
534                 platform_device_register(&at91sam9260_spi1_device);
535         }
536 }
537 #else
538 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
539 #endif
540
541
542 /* --------------------------------------------------------------------
543  *  RTT
544  * -------------------------------------------------------------------- */
545
546 static struct resource rtt_resources[] = {
547         {
548                 .start  = AT91_BASE_SYS + AT91_RTT,
549                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
550                 .flags  = IORESOURCE_MEM,
551         }
552 };
553
554 static struct platform_device at91sam9260_rtt_device = {
555         .name           = "at91_rtt",
556         .id             = -1,
557         .resource       = rtt_resources,
558         .num_resources  = ARRAY_SIZE(rtt_resources),
559 };
560
561 static void __init at91_add_device_rtt(void)
562 {
563         platform_device_register(&at91sam9260_rtt_device);
564 }
565
566
567 /* --------------------------------------------------------------------
568  *  Watchdog
569  * -------------------------------------------------------------------- */
570
571 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
572 static struct platform_device at91sam9260_wdt_device = {
573         .name           = "at91_wdt",
574         .id             = -1,
575         .num_resources  = 0,
576 };
577
578 static void __init at91_add_device_watchdog(void)
579 {
580         platform_device_register(&at91sam9260_wdt_device);
581 }
582 #else
583 static void __init at91_add_device_watchdog(void) {}
584 #endif
585
586
587 /* --------------------------------------------------------------------
588  *  SSC -- Synchronous Serial Controller
589  * -------------------------------------------------------------------- */
590
591 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
592 static u64 ssc_dmamask = DMA_BIT_MASK(32);
593
594 static struct resource ssc_resources[] = {
595         [0] = {
596                 .start  = AT91SAM9260_BASE_SSC,
597                 .end    = AT91SAM9260_BASE_SSC + SZ_16K - 1,
598                 .flags  = IORESOURCE_MEM,
599         },
600         [1] = {
601                 .start  = AT91SAM9260_ID_SSC,
602                 .end    = AT91SAM9260_ID_SSC,
603                 .flags  = IORESOURCE_IRQ,
604         },
605 };
606
607 static struct platform_device at91sam9260_ssc_device = {
608         .name   = "ssc",
609         .id     = 0,
610         .dev    = {
611                 .dma_mask               = &ssc_dmamask,
612                 .coherent_dma_mask      = DMA_BIT_MASK(32),
613         },
614         .resource       = ssc_resources,
615         .num_resources  = ARRAY_SIZE(ssc_resources),
616 };
617
618 static inline void configure_ssc_pins(unsigned pins)
619 {
620         if (pins & ATMEL_SSC_TF)
621                 at91_set_A_periph(AT91_PIN_PB17, 1);
622         if (pins & ATMEL_SSC_TK)
623                 at91_set_A_periph(AT91_PIN_PB16, 1);
624         if (pins & ATMEL_SSC_TD)
625                 at91_set_A_periph(AT91_PIN_PB18, 1);
626         if (pins & ATMEL_SSC_RD)
627                 at91_set_A_periph(AT91_PIN_PB19, 1);
628         if (pins & ATMEL_SSC_RK)
629                 at91_set_A_periph(AT91_PIN_PB20, 1);
630         if (pins & ATMEL_SSC_RF)
631                 at91_set_A_periph(AT91_PIN_PB21, 1);
632 }
633
634 /*
635  * SSC controllers are accessed through library code, instead of any
636  * kind of all-singing/all-dancing driver.  For example one could be
637  * used by a particular I2S audio codec's driver, while another one
638  * on the same system might be used by a custom data capture driver.
639  */
640 void __init at91_add_device_ssc(unsigned id, unsigned pins)
641 {
642         struct platform_device *pdev;
643
644         /*
645          * NOTE: caller is responsible for passing information matching
646          * "pins" to whatever will be using each particular controller.
647          */
648         switch (id) {
649         case AT91SAM9260_ID_SSC:
650                 pdev = &at91sam9260_ssc_device;
651                 configure_ssc_pins(pins);
652                 at91_clock_associate("ssc_clk", &pdev->dev, "pclk");
653                 break;
654         default:
655                 return;
656         }
657
658         platform_device_register(pdev);
659 }
660
661 #else
662 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
663 #endif
664
665
666 /* --------------------------------------------------------------------
667  *  UART
668  * -------------------------------------------------------------------- */
669 #if defined(CONFIG_SERIAL_ATMEL)
670 static struct resource dbgu_resources[] = {
671         [0] = {
672                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
673                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
674                 .flags  = IORESOURCE_MEM,
675         },
676         [1] = {
677                 .start  = AT91_ID_SYS,
678                 .end    = AT91_ID_SYS,
679                 .flags  = IORESOURCE_IRQ,
680         },
681 };
682
683 static struct atmel_uart_data dbgu_data = {
684         .use_dma_tx     = 0,
685         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
686         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
687 };
688
689 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
690
691 static struct platform_device at91sam9260_dbgu_device = {
692         .name           = "atmel_usart",
693         .id             = 0,
694         .dev            = {
695                                 .dma_mask               = &dbgu_dmamask,
696                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
697                                 .platform_data          = &dbgu_data,
698         },
699         .resource       = dbgu_resources,
700         .num_resources  = ARRAY_SIZE(dbgu_resources),
701 };
702
703 static inline void configure_dbgu_pins(void)
704 {
705         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
706         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
707 }
708
709 static struct resource uart0_resources[] = {
710         [0] = {
711                 .start  = AT91SAM9260_BASE_US0,
712                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
713                 .flags  = IORESOURCE_MEM,
714         },
715         [1] = {
716                 .start  = AT91SAM9260_ID_US0,
717                 .end    = AT91SAM9260_ID_US0,
718                 .flags  = IORESOURCE_IRQ,
719         },
720 };
721
722 static struct atmel_uart_data uart0_data = {
723         .use_dma_tx     = 1,
724         .use_dma_rx     = 1,
725 };
726
727 static u64 uart0_dmamask = DMA_BIT_MASK(32);
728
729 static struct platform_device at91sam9260_uart0_device = {
730         .name           = "atmel_usart",
731         .id             = 1,
732         .dev            = {
733                                 .dma_mask               = &uart0_dmamask,
734                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
735                                 .platform_data          = &uart0_data,
736         },
737         .resource       = uart0_resources,
738         .num_resources  = ARRAY_SIZE(uart0_resources),
739 };
740
741 static inline void configure_usart0_pins(unsigned pins)
742 {
743         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
744         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
745
746         if (pins & ATMEL_UART_RTS)
747                 at91_set_A_periph(AT91_PIN_PB26, 0);    /* RTS0 */
748         if (pins & ATMEL_UART_CTS)
749                 at91_set_A_periph(AT91_PIN_PB27, 0);    /* CTS0 */
750         if (pins & ATMEL_UART_DTR)
751                 at91_set_A_periph(AT91_PIN_PB24, 0);    /* DTR0 */
752         if (pins & ATMEL_UART_DSR)
753                 at91_set_A_periph(AT91_PIN_PB22, 0);    /* DSR0 */
754         if (pins & ATMEL_UART_DCD)
755                 at91_set_A_periph(AT91_PIN_PB23, 0);    /* DCD0 */
756         if (pins & ATMEL_UART_RI)
757                 at91_set_A_periph(AT91_PIN_PB25, 0);    /* RI0 */
758 }
759
760 static struct resource uart1_resources[] = {
761         [0] = {
762                 .start  = AT91SAM9260_BASE_US1,
763                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
764                 .flags  = IORESOURCE_MEM,
765         },
766         [1] = {
767                 .start  = AT91SAM9260_ID_US1,
768                 .end    = AT91SAM9260_ID_US1,
769                 .flags  = IORESOURCE_IRQ,
770         },
771 };
772
773 static struct atmel_uart_data uart1_data = {
774         .use_dma_tx     = 1,
775         .use_dma_rx     = 1,
776 };
777
778 static u64 uart1_dmamask = DMA_BIT_MASK(32);
779
780 static struct platform_device at91sam9260_uart1_device = {
781         .name           = "atmel_usart",
782         .id             = 2,
783         .dev            = {
784                                 .dma_mask               = &uart1_dmamask,
785                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
786                                 .platform_data          = &uart1_data,
787         },
788         .resource       = uart1_resources,
789         .num_resources  = ARRAY_SIZE(uart1_resources),
790 };
791
792 static inline void configure_usart1_pins(unsigned pins)
793 {
794         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
795         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
796
797         if (pins & ATMEL_UART_RTS)
798                 at91_set_A_periph(AT91_PIN_PB28, 0);    /* RTS1 */
799         if (pins & ATMEL_UART_CTS)
800                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* CTS1 */
801 }
802
803 static struct resource uart2_resources[] = {
804         [0] = {
805                 .start  = AT91SAM9260_BASE_US2,
806                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
807                 .flags  = IORESOURCE_MEM,
808         },
809         [1] = {
810                 .start  = AT91SAM9260_ID_US2,
811                 .end    = AT91SAM9260_ID_US2,
812                 .flags  = IORESOURCE_IRQ,
813         },
814 };
815
816 static struct atmel_uart_data uart2_data = {
817         .use_dma_tx     = 1,
818         .use_dma_rx     = 1,
819 };
820
821 static u64 uart2_dmamask = DMA_BIT_MASK(32);
822
823 static struct platform_device at91sam9260_uart2_device = {
824         .name           = "atmel_usart",
825         .id             = 3,
826         .dev            = {
827                                 .dma_mask               = &uart2_dmamask,
828                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
829                                 .platform_data          = &uart2_data,
830         },
831         .resource       = uart2_resources,
832         .num_resources  = ARRAY_SIZE(uart2_resources),
833 };
834
835 static inline void configure_usart2_pins(unsigned pins)
836 {
837         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
838         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
839
840         if (pins & ATMEL_UART_RTS)
841                 at91_set_A_periph(AT91_PIN_PA4, 0);     /* RTS2 */
842         if (pins & ATMEL_UART_CTS)
843                 at91_set_A_periph(AT91_PIN_PA5, 0);     /* CTS2 */
844 }
845
846 static struct resource uart3_resources[] = {
847         [0] = {
848                 .start  = AT91SAM9260_BASE_US3,
849                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
850                 .flags  = IORESOURCE_MEM,
851         },
852         [1] = {
853                 .start  = AT91SAM9260_ID_US3,
854                 .end    = AT91SAM9260_ID_US3,
855                 .flags  = IORESOURCE_IRQ,
856         },
857 };
858
859 static struct atmel_uart_data uart3_data = {
860         .use_dma_tx     = 1,
861         .use_dma_rx     = 1,
862 };
863
864 static u64 uart3_dmamask = DMA_BIT_MASK(32);
865
866 static struct platform_device at91sam9260_uart3_device = {
867         .name           = "atmel_usart",
868         .id             = 4,
869         .dev            = {
870                                 .dma_mask               = &uart3_dmamask,
871                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
872                                 .platform_data          = &uart3_data,
873         },
874         .resource       = uart3_resources,
875         .num_resources  = ARRAY_SIZE(uart3_resources),
876 };
877
878 static inline void configure_usart3_pins(unsigned pins)
879 {
880         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
881         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
882
883         if (pins & ATMEL_UART_RTS)
884                 at91_set_B_periph(AT91_PIN_PC8, 0);     /* RTS3 */
885         if (pins & ATMEL_UART_CTS)
886                 at91_set_B_periph(AT91_PIN_PC10, 0);    /* CTS3 */
887 }
888
889 static struct resource uart4_resources[] = {
890         [0] = {
891                 .start  = AT91SAM9260_BASE_US4,
892                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
893                 .flags  = IORESOURCE_MEM,
894         },
895         [1] = {
896                 .start  = AT91SAM9260_ID_US4,
897                 .end    = AT91SAM9260_ID_US4,
898                 .flags  = IORESOURCE_IRQ,
899         },
900 };
901
902 static struct atmel_uart_data uart4_data = {
903         .use_dma_tx     = 1,
904         .use_dma_rx     = 1,
905 };
906
907 static u64 uart4_dmamask = DMA_BIT_MASK(32);
908
909 static struct platform_device at91sam9260_uart4_device = {
910         .name           = "atmel_usart",
911         .id             = 5,
912         .dev            = {
913                                 .dma_mask               = &uart4_dmamask,
914                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
915                                 .platform_data          = &uart4_data,
916         },
917         .resource       = uart4_resources,
918         .num_resources  = ARRAY_SIZE(uart4_resources),
919 };
920
921 static inline void configure_usart4_pins(void)
922 {
923         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
924         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
925 }
926
927 static struct resource uart5_resources[] = {
928         [0] = {
929                 .start  = AT91SAM9260_BASE_US5,
930                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
931                 .flags  = IORESOURCE_MEM,
932         },
933         [1] = {
934                 .start  = AT91SAM9260_ID_US5,
935                 .end    = AT91SAM9260_ID_US5,
936                 .flags  = IORESOURCE_IRQ,
937         },
938 };
939
940 static struct atmel_uart_data uart5_data = {
941         .use_dma_tx     = 1,
942         .use_dma_rx     = 1,
943 };
944
945 static u64 uart5_dmamask = DMA_BIT_MASK(32);
946
947 static struct platform_device at91sam9260_uart5_device = {
948         .name           = "atmel_usart",
949         .id             = 6,
950         .dev            = {
951                                 .dma_mask               = &uart5_dmamask,
952                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
953                                 .platform_data          = &uart5_data,
954         },
955         .resource       = uart5_resources,
956         .num_resources  = ARRAY_SIZE(uart5_resources),
957 };
958
959 static inline void configure_usart5_pins(void)
960 {
961         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
962         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
963 }
964
965 static struct platform_device *at91_uarts[ATMEL_MAX_UART];      /* the UARTs to use */
966 struct platform_device *atmel_default_console_device;   /* the serial console device */
967
968 void __init __deprecated at91_init_serial(struct at91_uart_config *config)
969 {
970         int i;
971
972         /* Fill in list of supported UARTs */
973         for (i = 0; i < config->nr_tty; i++) {
974                 switch (config->tty_map[i]) {
975                         case 0:
976                                 configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI);
977                                 at91_uarts[i] = &at91sam9260_uart0_device;
978                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
979                                 break;
980                         case 1:
981                                 configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
982                                 at91_uarts[i] = &at91sam9260_uart1_device;
983                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
984                                 break;
985                         case 2:
986                                 configure_usart2_pins(0);
987                                 at91_uarts[i] = &at91sam9260_uart2_device;
988                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
989                                 break;
990                         case 3:
991                                 configure_usart3_pins(0);
992                                 at91_uarts[i] = &at91sam9260_uart3_device;
993                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
994                                 break;
995                         case 4:
996                                 configure_usart4_pins();
997                                 at91_uarts[i] = &at91sam9260_uart4_device;
998                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
999                                 break;
1000                         case 5:
1001                                 configure_usart5_pins();
1002                                 at91_uarts[i] = &at91sam9260_uart5_device;
1003                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
1004                                 break;
1005                         case 6:
1006                                 configure_dbgu_pins();
1007                                 at91_uarts[i] = &at91sam9260_dbgu_device;
1008                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
1009                                 break;
1010                         default:
1011                                 continue;
1012                 }
1013                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
1014         }
1015
1016         /* Set serial console device */
1017         if (config->console_tty < ATMEL_MAX_UART)
1018                 atmel_default_console_device = at91_uarts[config->console_tty];
1019         if (!atmel_default_console_device)
1020                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1021 }
1022
1023 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1024 {
1025         struct platform_device *pdev;
1026
1027         switch (id) {
1028                 case 0:         /* DBGU */
1029                         pdev = &at91sam9260_dbgu_device;
1030                         configure_dbgu_pins();
1031                         at91_clock_associate("mck", &pdev->dev, "usart");
1032                         break;
1033                 case AT91SAM9260_ID_US0:
1034                         pdev = &at91sam9260_uart0_device;
1035                         configure_usart0_pins(pins);
1036                         at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1037                         break;
1038                 case AT91SAM9260_ID_US1:
1039                         pdev = &at91sam9260_uart1_device;
1040                         configure_usart1_pins(pins);
1041                         at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1042                         break;
1043                 case AT91SAM9260_ID_US2:
1044                         pdev = &at91sam9260_uart2_device;
1045                         configure_usart2_pins(pins);
1046                         at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1047                         break;
1048                 case AT91SAM9260_ID_US3:
1049                         pdev = &at91sam9260_uart3_device;
1050                         configure_usart3_pins(pins);
1051                         at91_clock_associate("usart3_clk", &pdev->dev, "usart");
1052                         break;
1053                 case AT91SAM9260_ID_US4:
1054                         pdev = &at91sam9260_uart4_device;
1055                         configure_usart4_pins();
1056                         at91_clock_associate("usart4_clk", &pdev->dev, "usart");
1057                         break;
1058                 case AT91SAM9260_ID_US5:
1059                         pdev = &at91sam9260_uart5_device;
1060                         configure_usart5_pins();
1061                         at91_clock_associate("usart5_clk", &pdev->dev, "usart");
1062                         break;
1063                 default:
1064                         return;
1065         }
1066         pdev->id = portnr;              /* update to mapped ID */
1067
1068         if (portnr < ATMEL_MAX_UART)
1069                 at91_uarts[portnr] = pdev;
1070 }
1071
1072 void __init at91_set_serial_console(unsigned portnr)
1073 {
1074         if (portnr < ATMEL_MAX_UART)
1075                 atmel_default_console_device = at91_uarts[portnr];
1076         if (!atmel_default_console_device)
1077                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1078 }
1079
1080 void __init at91_add_device_serial(void)
1081 {
1082         int i;
1083
1084         for (i = 0; i < ATMEL_MAX_UART; i++) {
1085                 if (at91_uarts[i])
1086                         platform_device_register(at91_uarts[i]);
1087         }
1088 }
1089 #else
1090 void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
1091 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1092 void __init at91_set_serial_console(unsigned portnr) {}
1093 void __init at91_add_device_serial(void) {}
1094 #endif
1095
1096
1097 /* -------------------------------------------------------------------- */
1098 /*
1099  * These devices are always present and don't need any board-specific
1100  * setup.
1101  */
1102 static int __init at91_add_standard_devices(void)
1103 {
1104         at91_add_device_rtt();
1105         at91_add_device_watchdog();
1106         return 0;
1107 }
1108
1109 arch_initcall(at91_add_standard_devices);