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authorAndrew Victor <andrew@sanpeople.com>2006-11-30 10:45:01 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-12-01 08:53:53 -0500
commit86ad76bb2db7029343f681359c4b328fd8c36ae8 (patch)
tree6ac99acfe75c9324a340a702799036cf9617a53f /arch/arm/mach-at91rm9200/at91sam9260_devices.c
parent1a0ed732afdbd4b960a4b93f78fddc71b8076e61 (diff)
[ARM] 3953/1: AT91: SAM9 platform devices
This patch includes the pin initialization, resource definition and registration of the platform_devices for the SAM9260 and SAM9261 processors. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-at91rm9200/at91sam9260_devices.c')
-rw-r--r--arch/arm/mach-at91rm9200/at91sam9260_devices.c866
1 files changed, 866 insertions, 0 deletions
diff --git a/arch/arm/mach-at91rm9200/at91sam9260_devices.c b/arch/arm/mach-at91rm9200/at91sam9260_devices.c
new file mode 100644
index 000000000000..a6c596dc4516
--- /dev/null
+++ b/arch/arm/mach-at91rm9200/at91sam9260_devices.c
@@ -0,0 +1,866 @@
1/*
2 * arch/arm/mach-at91rm9200/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
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)
33static u64 ohci_dmamask = 0xffffffffUL;
34static struct at91_usbh_data usbh_data;
35
36static 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
49static struct platform_device at91_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 = usbh_resources,
58 .num_resources = ARRAY_SIZE(usbh_resources),
59};
60
61void __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
70void __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
79static struct at91_udc_data udc_data;
80
81static 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
94static 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
104void __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
120void __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)
129static u64 eth_dmamask = 0xffffffffUL;
130static struct eth_platform_data eth_data;
131
132static 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
145static struct platform_device at91sam9260_eth_device = {
146 .name = "macb",
147 .id = -1,
148 .dev = {
149 .dma_mask = &eth_dmamask,
150 .coherent_dma_mask = 0xffffffff,
151 .platform_data = &eth_data,
152 },
153 .resource = eth_resources,
154 .num_resources = ARRAY_SIZE(eth_resources),
155};
156
157void __init at91_add_device_eth(struct eth_platform_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
194void __init at91_add_device_eth(struct eth_platform_data *data) {}
195#endif
196
197
198/* --------------------------------------------------------------------
199 * MMC / SD
200 * -------------------------------------------------------------------- */
201
202#if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
203static u64 mmc_dmamask = 0xffffffffUL;
204static struct at91_mmc_data mmc_data;
205
206static 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
219static struct platform_device at91sam9260_mmc_device = {
220 .name = "at91_mci",
221 .id = -1,
222 .dev = {
223 .dma_mask = &mmc_dmamask,
224 .coherent_dma_mask = 0xffffffff,
225 .platform_data = &mmc_data,
226 },
227 .resource = mmc_resources,
228 .num_resources = ARRAY_SIZE(mmc_resources),
229};
230
231void __init at91_add_device_mmc(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
277void __init at91_add_device_mmc(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)
286static struct at91_nand_data nand_data;
287
288#define NAND_BASE AT91_CHIPSELECT_3
289
290static struct resource nand_resources[] = {
291 {
292 .start = NAND_BASE,
293 .end = NAND_BASE + SZ_8M - 1,
294 .flags = IORESOURCE_MEM,
295 }
296};
297
298static 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
308void __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);
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_(2) | AT91_SMC_NCS_WRPULSE_(5)
323 | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
324
325 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
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_(1));
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
349void __init at91_add_device_nand(struct at91_nand_data *data) {}
350#endif
351
352
353/* --------------------------------------------------------------------
354 * TWI (i2c)
355 * -------------------------------------------------------------------- */
356
357#if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
358
359static struct resource twi_resources[] = {
360 [0] = {
361 .start = AT91SAM9260_BASE_TWI,
362 .end = AT91SAM9260_BASE_TWI + SZ_16K - 1,
363 .flags = IORESOURCE_MEM,
364 },
365 [1] = {
366 .start = AT91SAM9260_ID_TWI,
367 .end = AT91SAM9260_ID_TWI,
368 .flags = IORESOURCE_IRQ,
369 },
370};
371
372static struct platform_device at91sam9260_twi_device = {
373 .name = "at91_i2c",
374 .id = -1,
375 .resource = twi_resources,
376 .num_resources = ARRAY_SIZE(twi_resources),
377};
378
379void __init at91_add_device_i2c(void)
380{
381 /* pins used for TWI interface */
382 at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
383 at91_set_multi_drive(AT91_PIN_PA23, 1);
384
385 at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
386 at91_set_multi_drive(AT91_PIN_PA24, 1);
387
388 platform_device_register(&at91sam9260_twi_device);
389}
390#else
391void __init at91_add_device_i2c(void) {}
392#endif
393
394
395/* --------------------------------------------------------------------
396 * SPI
397 * -------------------------------------------------------------------- */
398
399#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
400static u64 spi_dmamask = 0xffffffffUL;
401
402static struct resource spi0_resources[] = {
403 [0] = {
404 .start = AT91SAM9260_BASE_SPI0,
405 .end = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
406 .flags = IORESOURCE_MEM,
407 },
408 [1] = {
409 .start = AT91SAM9260_ID_SPI0,
410 .end = AT91SAM9260_ID_SPI0,
411 .flags = IORESOURCE_IRQ,
412 },
413};
414
415static struct platform_device at91sam9260_spi0_device = {
416 .name = "atmel_spi",
417 .id = 0,
418 .dev = {
419 .dma_mask = &spi_dmamask,
420 .coherent_dma_mask = 0xffffffff,
421 },
422 .resource = spi0_resources,
423 .num_resources = ARRAY_SIZE(spi0_resources),
424};
425
426static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
427
428static struct resource spi1_resources[] = {
429 [0] = {
430 .start = AT91SAM9260_BASE_SPI1,
431 .end = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
432 .flags = IORESOURCE_MEM,
433 },
434 [1] = {
435 .start = AT91SAM9260_ID_SPI1,
436 .end = AT91SAM9260_ID_SPI1,
437 .flags = IORESOURCE_IRQ,
438 },
439};
440
441static struct platform_device at91sam9260_spi1_device = {
442 .name = "atmel_spi",
443 .id = 1,
444 .dev = {
445 .dma_mask = &spi_dmamask,
446 .coherent_dma_mask = 0xffffffff,
447 },
448 .resource = spi1_resources,
449 .num_resources = ARRAY_SIZE(spi1_resources),
450};
451
452static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
453
454void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
455{
456 int i;
457 unsigned long cs_pin;
458 short enable_spi0 = 0;
459 short enable_spi1 = 0;
460
461 /* Choose SPI chip-selects */
462 for (i = 0; i < nr_devices; i++) {
463 if (devices[i].controller_data)
464 cs_pin = (unsigned long) devices[i].controller_data;
465 else if (devices[i].bus_num == 0)
466 cs_pin = spi0_standard_cs[devices[i].chip_select];
467 else
468 cs_pin = spi1_standard_cs[devices[i].chip_select];
469
470 if (devices[i].bus_num == 0)
471 enable_spi0 = 1;
472 else
473 enable_spi1 = 1;
474
475 /* enable chip-select pin */
476 at91_set_gpio_output(cs_pin, 1);
477
478 /* pass chip-select pin to driver */
479 devices[i].controller_data = (void *) cs_pin;
480 }
481
482 spi_register_board_info(devices, nr_devices);
483
484 /* Configure SPI bus(es) */
485 if (enable_spi0) {
486 at91_set_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
487 at91_set_A_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
488 at91_set_A_periph(AT91_PIN_PA2, 0); /* SPI1_SPCK */
489
490 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
491 platform_device_register(&at91sam9260_spi0_device);
492 }
493 if (enable_spi1) {
494 at91_set_A_periph(AT91_PIN_PB0, 0); /* SPI1_MISO */
495 at91_set_A_periph(AT91_PIN_PB1, 0); /* SPI1_MOSI */
496 at91_set_A_periph(AT91_PIN_PB2, 0); /* SPI1_SPCK */
497
498 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
499 platform_device_register(&at91sam9260_spi1_device);
500 }
501}
502#else
503void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
504#endif
505
506
507/* --------------------------------------------------------------------
508 * LEDs
509 * -------------------------------------------------------------------- */
510
511#if defined(CONFIG_LEDS)
512u8 at91_leds_cpu;
513u8 at91_leds_timer;
514
515void __init at91_init_leds(u8 cpu_led, u8 timer_led)
516{
517 at91_leds_cpu = cpu_led;
518 at91_leds_timer = timer_led;
519}
520#else
521void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
522#endif
523
524
525/* --------------------------------------------------------------------
526 * UART
527 * -------------------------------------------------------------------- */
528#if defined(CONFIG_SERIAL_ATMEL)
529static struct resource dbgu_resources[] = {
530 [0] = {
531 .start = AT91_VA_BASE_SYS + AT91_DBGU,
532 .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
533 .flags = IORESOURCE_MEM,
534 },
535 [1] = {
536 .start = AT91_ID_SYS,
537 .end = AT91_ID_SYS,
538 .flags = IORESOURCE_IRQ,
539 },
540};
541
542static struct atmel_uart_data dbgu_data = {
543 .use_dma_tx = 0,
544 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
545 .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
546};
547
548static struct platform_device at91sam9260_dbgu_device = {
549 .name = "atmel_usart",
550 .id = 0,
551 .dev = {
552 .platform_data = &dbgu_data,
553 .coherent_dma_mask = 0xffffffff,
554 },
555 .resource = dbgu_resources,
556 .num_resources = ARRAY_SIZE(dbgu_resources),
557};
558
559static inline void configure_dbgu_pins(void)
560{
561 at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
562 at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
563}
564
565static struct resource uart0_resources[] = {
566 [0] = {
567 .start = AT91SAM9260_BASE_US0,
568 .end = AT91SAM9260_BASE_US0 + SZ_16K - 1,
569 .flags = IORESOURCE_MEM,
570 },
571 [1] = {
572 .start = AT91SAM9260_ID_US0,
573 .end = AT91SAM9260_ID_US0,
574 .flags = IORESOURCE_IRQ,
575 },
576};
577
578static struct atmel_uart_data uart0_data = {
579 .use_dma_tx = 1,
580 .use_dma_rx = 1,
581};
582
583static struct platform_device at91sam9260_uart0_device = {
584 .name = "atmel_usart",
585 .id = 1,
586 .dev = {
587 .platform_data = &uart0_data,
588 .coherent_dma_mask = 0xffffffff,
589 },
590 .resource = uart0_resources,
591 .num_resources = ARRAY_SIZE(uart0_resources),
592};
593
594static inline void configure_usart0_pins(void)
595{
596 at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
597 at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
598 at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */
599 at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */
600 at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */
601 at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */
602 at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */
603 at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */
604}
605
606static struct resource uart1_resources[] = {
607 [0] = {
608 .start = AT91SAM9260_BASE_US1,
609 .end = AT91SAM9260_BASE_US1 + SZ_16K - 1,
610 .flags = IORESOURCE_MEM,
611 },
612 [1] = {
613 .start = AT91SAM9260_ID_US1,
614 .end = AT91SAM9260_ID_US1,
615 .flags = IORESOURCE_IRQ,
616 },
617};
618
619static struct atmel_uart_data uart1_data = {
620 .use_dma_tx = 1,
621 .use_dma_rx = 1,
622};
623
624static struct platform_device at91sam9260_uart1_device = {
625 .name = "atmel_usart",
626 .id = 2,
627 .dev = {
628 .platform_data = &uart1_data,
629 .coherent_dma_mask = 0xffffffff,
630 },
631 .resource = uart1_resources,
632 .num_resources = ARRAY_SIZE(uart1_resources),
633};
634
635static inline void configure_usart1_pins(void)
636{
637 at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
638 at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
639 at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */
640 at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */
641}
642
643static struct resource uart2_resources[] = {
644 [0] = {
645 .start = AT91SAM9260_BASE_US2,
646 .end = AT91SAM9260_BASE_US2 + SZ_16K - 1,
647 .flags = IORESOURCE_MEM,
648 },
649 [1] = {
650 .start = AT91SAM9260_ID_US2,
651 .end = AT91SAM9260_ID_US2,
652 .flags = IORESOURCE_IRQ,
653 },
654};
655
656static struct atmel_uart_data uart2_data = {
657 .use_dma_tx = 1,
658 .use_dma_rx = 1,
659};
660
661static struct platform_device at91sam9260_uart2_device = {
662 .name = "atmel_usart",
663 .id = 3,
664 .dev = {
665 .platform_data = &uart2_data,
666 .coherent_dma_mask = 0xffffffff,
667 },
668 .resource = uart2_resources,
669 .num_resources = ARRAY_SIZE(uart2_resources),
670};
671
672static inline void configure_usart2_pins(void)
673{
674 at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
675 at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
676}
677
678static struct resource uart3_resources[] = {
679 [0] = {
680 .start = AT91SAM9260_BASE_US3,
681 .end = AT91SAM9260_BASE_US3 + SZ_16K - 1,
682 .flags = IORESOURCE_MEM,
683 },
684 [1] = {
685 .start = AT91SAM9260_ID_US3,
686 .end = AT91SAM9260_ID_US3,
687 .flags = IORESOURCE_IRQ,
688 },
689};
690
691static struct atmel_uart_data uart3_data = {
692 .use_dma_tx = 1,
693 .use_dma_rx = 1,
694};
695
696static struct platform_device at91sam9260_uart3_device = {
697 .name = "atmel_usart",
698 .id = 4,
699 .dev = {
700 .platform_data = &uart3_data,
701 .coherent_dma_mask = 0xffffffff,
702 },
703 .resource = uart3_resources,
704 .num_resources = ARRAY_SIZE(uart3_resources),
705};
706
707static inline void configure_usart3_pins(void)
708{
709 at91_set_A_periph(AT91_PIN_PB10, 1); /* TXD3 */
710 at91_set_A_periph(AT91_PIN_PB11, 0); /* RXD3 */
711}
712
713static struct resource uart4_resources[] = {
714 [0] = {
715 .start = AT91SAM9260_BASE_US4,
716 .end = AT91SAM9260_BASE_US4 + SZ_16K - 1,
717 .flags = IORESOURCE_MEM,
718 },
719 [1] = {
720 .start = AT91SAM9260_ID_US4,
721 .end = AT91SAM9260_ID_US4,
722 .flags = IORESOURCE_IRQ,
723 },
724};
725
726static struct atmel_uart_data uart4_data = {
727 .use_dma_tx = 1,
728 .use_dma_rx = 1,
729};
730
731static struct platform_device at91sam9260_uart4_device = {
732 .name = "atmel_usart",
733 .id = 5,
734 .dev = {
735 .platform_data = &uart4_data,
736 .coherent_dma_mask = 0xffffffff,
737 },
738 .resource = uart4_resources,
739 .num_resources = ARRAY_SIZE(uart4_resources),
740};
741
742static inline void configure_usart4_pins(void)
743{
744 at91_set_B_periph(AT91_PIN_PA31, 1); /* TXD4 */
745 at91_set_B_periph(AT91_PIN_PA30, 0); /* RXD4 */
746}
747
748static struct resource uart5_resources[] = {
749 [0] = {
750 .start = AT91SAM9260_BASE_US5,
751 .end = AT91SAM9260_BASE_US5 + SZ_16K - 1,
752 .flags = IORESOURCE_MEM,
753 },
754 [1] = {
755 .start = AT91SAM9260_ID_US5,
756 .end = AT91SAM9260_ID_US5,
757 .flags = IORESOURCE_IRQ,
758 },
759};
760
761static struct atmel_uart_data uart5_data = {
762 .use_dma_tx = 1,
763 .use_dma_rx = 1,
764};
765
766static struct platform_device at91sam9260_uart5_device = {
767 .name = "atmel_usart",
768 .id = 6,
769 .dev = {
770 .platform_data = &uart5_data,
771 .coherent_dma_mask = 0xffffffff,
772 },
773 .resource = uart5_resources,
774 .num_resources = ARRAY_SIZE(uart5_resources),
775};
776
777static inline void configure_usart5_pins(void)
778{
779 at91_set_A_periph(AT91_PIN_PB12, 1); /* TXD5 */
780 at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */
781}
782
783struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
784struct platform_device *atmel_default_console_device; /* the serial console device */
785
786void __init at91_init_serial(struct at91_uart_config *config)
787{
788 int i;
789
790 /* Fill in list of supported UARTs */
791 for (i = 0; i < config->nr_tty; i++) {
792 switch (config->tty_map[i]) {
793 case 0:
794 configure_usart0_pins();
795 at91_uarts[i] = &at91sam9260_uart0_device;
796 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
797 break;
798 case 1:
799 configure_usart1_pins();
800 at91_uarts[i] = &at91sam9260_uart1_device;
801 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
802 break;
803 case 2:
804 configure_usart2_pins();
805 at91_uarts[i] = &at91sam9260_uart2_device;
806 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
807 break;
808 case 3:
809 configure_usart3_pins();
810 at91_uarts[i] = &at91sam9260_uart3_device;
811 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
812 break;
813 case 4:
814 configure_usart4_pins();
815 at91_uarts[i] = &at91sam9260_uart4_device;
816 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
817 break;
818 case 5:
819 configure_usart5_pins();
820 at91_uarts[i] = &at91sam9260_uart5_device;
821 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
822 break;
823 case 6:
824 configure_dbgu_pins();
825 at91_uarts[i] = &at91sam9260_dbgu_device;
826 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
827 break;
828 default:
829 continue;
830 }
831 at91_uarts[i]->id = i; /* update ID number to mapped ID */
832 }
833
834 /* Set serial console device */
835 if (config->console_tty < ATMEL_MAX_UART)
836 atmel_default_console_device = at91_uarts[config->console_tty];
837 if (!atmel_default_console_device)
838 printk(KERN_INFO "AT91: No default serial console defined.\n");
839}
840
841void __init at91_add_device_serial(void)
842{
843 int i;
844
845 for (i = 0; i < ATMEL_MAX_UART; i++) {
846 if (at91_uarts[i])
847 platform_device_register(at91_uarts[i]);
848 }
849}
850#else
851void __init at91_init_serial(struct at91_uart_config *config) {}
852void __init at91_add_device_serial(void) {}
853#endif
854
855
856/* -------------------------------------------------------------------- */
857/*
858 * These devices are always present and don't need any board-specific
859 * setup.
860 */
861static int __init at91_add_standard_devices(void)
862{
863 return 0;
864}
865
866arch_initcall(at91_add_standard_devices);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-12 21:10:46 -0500