2 * arch/arm/mach-at91/at91sam9260_devices.c
4 * Copyright (C) 2006 Atmel
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.
12 #include <asm/mach/arch.h>
13 #include <asm/mach/map.h>
15 #include <linux/dma-mapping.h>
16 #include <linux/platform_device.h>
17 #include <linux/i2c-gpio.h>
19 #include <asm/arch/board.h>
20 #include <asm/arch/gpio.h>
21 #include <asm/arch/at91sam9260.h>
22 #include <asm/arch/at91sam9260_matrix.h>
23 #include <asm/arch/at91sam9_smc.h>
28 /* --------------------------------------------------------------------
30 * -------------------------------------------------------------------- */
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
;
36 static struct resource usbh_resources
[] = {
38 .start
= AT91SAM9260_UHP_BASE
,
39 .end
= AT91SAM9260_UHP_BASE
+ SZ_1M
- 1,
40 .flags
= IORESOURCE_MEM
,
43 .start
= AT91SAM9260_ID_UHP
,
44 .end
= AT91SAM9260_ID_UHP
,
45 .flags
= IORESOURCE_IRQ
,
49 static struct platform_device at91_usbh_device
= {
53 .dma_mask
= &ohci_dmamask
,
54 .coherent_dma_mask
= DMA_BIT_MASK(32),
55 .platform_data
= &usbh_data
,
57 .resource
= usbh_resources
,
58 .num_resources
= ARRAY_SIZE(usbh_resources
),
61 void __init
at91_add_device_usbh(struct at91_usbh_data
*data
)
67 platform_device_register(&at91_usbh_device
);
70 void __init
at91_add_device_usbh(struct at91_usbh_data
*data
) {}
74 /* --------------------------------------------------------------------
76 * -------------------------------------------------------------------- */
78 #ifdef CONFIG_USB_GADGET_AT91
79 static struct at91_udc_data udc_data
;
81 static struct resource udc_resources
[] = {
83 .start
= AT91SAM9260_BASE_UDP
,
84 .end
= AT91SAM9260_BASE_UDP
+ SZ_16K
- 1,
85 .flags
= IORESOURCE_MEM
,
88 .start
= AT91SAM9260_ID_UDP
,
89 .end
= AT91SAM9260_ID_UDP
,
90 .flags
= IORESOURCE_IRQ
,
94 static struct platform_device at91_udc_device
= {
98 .platform_data
= &udc_data
,
100 .resource
= udc_resources
,
101 .num_resources
= ARRAY_SIZE(udc_resources
),
104 void __init
at91_add_device_udc(struct at91_udc_data
*data
)
109 if (data
->vbus_pin
) {
110 at91_set_gpio_input(data
->vbus_pin
, 0);
111 at91_set_deglitch(data
->vbus_pin
, 1);
114 /* Pullup pin is handled internally by USB device peripheral */
117 platform_device_register(&at91_udc_device
);
120 void __init
at91_add_device_udc(struct at91_udc_data
*data
) {}
124 /* --------------------------------------------------------------------
126 * -------------------------------------------------------------------- */
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
;
132 static struct resource eth_resources
[] = {
134 .start
= AT91SAM9260_BASE_EMAC
,
135 .end
= AT91SAM9260_BASE_EMAC
+ SZ_16K
- 1,
136 .flags
= IORESOURCE_MEM
,
139 .start
= AT91SAM9260_ID_EMAC
,
140 .end
= AT91SAM9260_ID_EMAC
,
141 .flags
= IORESOURCE_IRQ
,
145 static struct platform_device at91sam9260_eth_device
= {
149 .dma_mask
= ð_dmamask
,
150 .coherent_dma_mask
= DMA_BIT_MASK(32),
151 .platform_data
= ð_data
,
153 .resource
= eth_resources
,
154 .num_resources
= ARRAY_SIZE(eth_resources
),
157 void __init
at91_add_device_eth(struct at91_eth_data
*data
)
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);
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 */
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 */
191 platform_device_register(&at91sam9260_eth_device
);
194 void __init
at91_add_device_eth(struct at91_eth_data
*data
) {}
198 /* --------------------------------------------------------------------
200 * -------------------------------------------------------------------- */
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
;
206 static struct resource mmc_resources
[] = {
208 .start
= AT91SAM9260_BASE_MCI
,
209 .end
= AT91SAM9260_BASE_MCI
+ SZ_16K
- 1,
210 .flags
= IORESOURCE_MEM
,
213 .start
= AT91SAM9260_ID_MCI
,
214 .end
= AT91SAM9260_ID_MCI
,
215 .flags
= IORESOURCE_IRQ
,
219 static struct platform_device at91sam9260_mmc_device
= {
223 .dma_mask
= &mmc_dmamask
,
224 .coherent_dma_mask
= DMA_BIT_MASK(32),
225 .platform_data
= &mmc_data
,
227 .resource
= mmc_resources
,
228 .num_resources
= ARRAY_SIZE(mmc_resources
),
231 void __init
at91_add_device_mmc(short mmc_id
, struct at91_mmc_data
*data
)
238 at91_set_gpio_input(data
->det_pin
, 1);
239 at91_set_deglitch(data
->det_pin
, 1);
242 at91_set_gpio_input(data
->wp_pin
, 1);
244 at91_set_gpio_output(data
->vcc_pin
, 0);
247 at91_set_A_periph(AT91_PIN_PA8
, 0);
251 at91_set_B_periph(AT91_PIN_PA1
, 1);
253 /* DAT0, maybe DAT1..DAT3 */
254 at91_set_B_periph(AT91_PIN_PA0
, 1);
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);
262 at91_set_A_periph(AT91_PIN_PA7
, 1);
264 /* DAT0, maybe DAT1..DAT3 */
265 at91_set_A_periph(AT91_PIN_PA6
, 1);
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);
274 platform_device_register(&at91sam9260_mmc_device
);
277 void __init
at91_add_device_mmc(short mmc_id
, struct at91_mmc_data
*data
) {}
281 /* --------------------------------------------------------------------
283 * -------------------------------------------------------------------- */
285 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
286 static struct at91_nand_data nand_data
;
288 #define NAND_BASE AT91_CHIPSELECT_3
290 static struct resource nand_resources
[] = {
293 .end
= NAND_BASE
+ SZ_256M
- 1,
294 .flags
= IORESOURCE_MEM
,
297 .start
= AT91_BASE_SYS
+ AT91_ECC
,
298 .end
= AT91_BASE_SYS
+ AT91_ECC
+ SZ_512
- 1,
299 .flags
= IORESOURCE_MEM
,
303 static struct platform_device at91sam9260_nand_device
= {
307 .platform_data
= &nand_data
,
309 .resource
= nand_resources
,
310 .num_resources
= ARRAY_SIZE(nand_resources
),
313 void __init
at91_add_device_nand(struct at91_nand_data
*data
)
315 unsigned long csa
, mode
;
320 csa
= at91_sys_read(AT91_MATRIX_EBICSA
);
321 at91_sys_write(AT91_MATRIX_EBICSA
, csa
| AT91_MATRIX_CS3A_SMC_SMARTMEDIA
);
323 /* set the bus interface characteristics */
324 at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
325 | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
327 at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
328 | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
330 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
332 if (data
->bus_width_16
)
333 mode
= AT91_SMC_DBW_16
;
335 mode
= AT91_SMC_DBW_8
;
336 at91_sys_write(AT91_SMC_MODE(3), mode
| AT91_SMC_READMODE
| AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE
| AT91_SMC_TDF_(2));
339 if (data
->enable_pin
)
340 at91_set_gpio_output(data
->enable_pin
, 1);
344 at91_set_gpio_input(data
->rdy_pin
, 1);
346 /* card detect pin */
348 at91_set_gpio_input(data
->det_pin
, 1);
351 platform_device_register(&at91sam9260_nand_device
);
354 void __init
at91_add_device_nand(struct at91_nand_data
*data
) {}
358 /* --------------------------------------------------------------------
360 * -------------------------------------------------------------------- */
363 * Prefer the GPIO code since the TWI controller isn't robust
364 * (gets overruns and underruns under load) and can only issue
365 * repeated STARTs in one scenario (the driver doesn't yet handle them).
368 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
370 static struct i2c_gpio_platform_data pdata
= {
371 .sda_pin
= AT91_PIN_PA23
,
372 .sda_is_open_drain
= 1,
373 .scl_pin
= AT91_PIN_PA24
,
374 .scl_is_open_drain
= 1,
375 .udelay
= 2, /* ~100 kHz */
378 static struct platform_device at91sam9260_twi_device
= {
381 .dev
.platform_data
= &pdata
,
384 void __init
at91_add_device_i2c(struct i2c_board_info
*devices
, int nr_devices
)
386 at91_set_GPIO_periph(AT91_PIN_PA23
, 1); /* TWD (SDA) */
387 at91_set_multi_drive(AT91_PIN_PA23
, 1);
389 at91_set_GPIO_periph(AT91_PIN_PA24
, 1); /* TWCK (SCL) */
390 at91_set_multi_drive(AT91_PIN_PA24
, 1);
392 i2c_register_board_info(0, devices
, nr_devices
);
393 platform_device_register(&at91sam9260_twi_device
);
396 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
398 static struct resource twi_resources
[] = {
400 .start
= AT91SAM9260_BASE_TWI
,
401 .end
= AT91SAM9260_BASE_TWI
+ SZ_16K
- 1,
402 .flags
= IORESOURCE_MEM
,
405 .start
= AT91SAM9260_ID_TWI
,
406 .end
= AT91SAM9260_ID_TWI
,
407 .flags
= IORESOURCE_IRQ
,
411 static struct platform_device at91sam9260_twi_device
= {
414 .resource
= twi_resources
,
415 .num_resources
= ARRAY_SIZE(twi_resources
),
418 void __init
at91_add_device_i2c(struct i2c_board_info
*devices
, int nr_devices
)
420 /* pins used for TWI interface */
421 at91_set_A_periph(AT91_PIN_PA23
, 0); /* TWD */
422 at91_set_multi_drive(AT91_PIN_PA23
, 1);
424 at91_set_A_periph(AT91_PIN_PA24
, 0); /* TWCK */
425 at91_set_multi_drive(AT91_PIN_PA24
, 1);
427 i2c_register_board_info(0, devices
, nr_devices
);
428 platform_device_register(&at91sam9260_twi_device
);
431 void __init
at91_add_device_i2c(struct i2c_board_info
*devices
, int nr_devices
) {}
435 /* --------------------------------------------------------------------
437 * -------------------------------------------------------------------- */
439 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
440 static u64 spi_dmamask
= DMA_BIT_MASK(32);
442 static struct resource spi0_resources
[] = {
444 .start
= AT91SAM9260_BASE_SPI0
,
445 .end
= AT91SAM9260_BASE_SPI0
+ SZ_16K
- 1,
446 .flags
= IORESOURCE_MEM
,
449 .start
= AT91SAM9260_ID_SPI0
,
450 .end
= AT91SAM9260_ID_SPI0
,
451 .flags
= IORESOURCE_IRQ
,
455 static struct platform_device at91sam9260_spi0_device
= {
459 .dma_mask
= &spi_dmamask
,
460 .coherent_dma_mask
= DMA_BIT_MASK(32),
462 .resource
= spi0_resources
,
463 .num_resources
= ARRAY_SIZE(spi0_resources
),
466 static const unsigned spi0_standard_cs
[4] = { AT91_PIN_PA3
, AT91_PIN_PC11
, AT91_PIN_PC16
, AT91_PIN_PC17
};
468 static struct resource spi1_resources
[] = {
470 .start
= AT91SAM9260_BASE_SPI1
,
471 .end
= AT91SAM9260_BASE_SPI1
+ SZ_16K
- 1,
472 .flags
= IORESOURCE_MEM
,
475 .start
= AT91SAM9260_ID_SPI1
,
476 .end
= AT91SAM9260_ID_SPI1
,
477 .flags
= IORESOURCE_IRQ
,
481 static struct platform_device at91sam9260_spi1_device
= {
485 .dma_mask
= &spi_dmamask
,
486 .coherent_dma_mask
= DMA_BIT_MASK(32),
488 .resource
= spi1_resources
,
489 .num_resources
= ARRAY_SIZE(spi1_resources
),
492 static const unsigned spi1_standard_cs
[4] = { AT91_PIN_PB3
, AT91_PIN_PC5
, AT91_PIN_PC4
, AT91_PIN_PC3
};
494 void __init
at91_add_device_spi(struct spi_board_info
*devices
, int nr_devices
)
497 unsigned long cs_pin
;
498 short enable_spi0
= 0;
499 short enable_spi1
= 0;
501 /* Choose SPI chip-selects */
502 for (i
= 0; i
< nr_devices
; i
++) {
503 if (devices
[i
].controller_data
)
504 cs_pin
= (unsigned long) devices
[i
].controller_data
;
505 else if (devices
[i
].bus_num
== 0)
506 cs_pin
= spi0_standard_cs
[devices
[i
].chip_select
];
508 cs_pin
= spi1_standard_cs
[devices
[i
].chip_select
];
510 if (devices
[i
].bus_num
== 0)
515 /* enable chip-select pin */
516 at91_set_gpio_output(cs_pin
, 1);
518 /* pass chip-select pin to driver */
519 devices
[i
].controller_data
= (void *) cs_pin
;
522 spi_register_board_info(devices
, nr_devices
);
524 /* Configure SPI bus(es) */
526 at91_set_A_periph(AT91_PIN_PA0
, 0); /* SPI0_MISO */
527 at91_set_A_periph(AT91_PIN_PA1
, 0); /* SPI0_MOSI */
528 at91_set_A_periph(AT91_PIN_PA2
, 0); /* SPI1_SPCK */
530 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device
.dev
, "spi_clk");
531 platform_device_register(&at91sam9260_spi0_device
);
534 at91_set_A_periph(AT91_PIN_PB0
, 0); /* SPI1_MISO */
535 at91_set_A_periph(AT91_PIN_PB1
, 0); /* SPI1_MOSI */
536 at91_set_A_periph(AT91_PIN_PB2
, 0); /* SPI1_SPCK */
538 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device
.dev
, "spi_clk");
539 platform_device_register(&at91sam9260_spi1_device
);
543 void __init
at91_add_device_spi(struct spi_board_info
*devices
, int nr_devices
) {}
547 /* --------------------------------------------------------------------
548 * Timer/Counter blocks
549 * -------------------------------------------------------------------- */
551 #ifdef CONFIG_ATMEL_TCLIB
553 static struct resource tcb0_resources
[] = {
555 .start
= AT91SAM9260_BASE_TCB0
,
556 .end
= AT91SAM9260_BASE_TCB0
+ SZ_16K
- 1,
557 .flags
= IORESOURCE_MEM
,
560 .start
= AT91SAM9260_ID_TC0
,
561 .end
= AT91SAM9260_ID_TC0
,
562 .flags
= IORESOURCE_IRQ
,
565 .start
= AT91SAM9260_ID_TC1
,
566 .end
= AT91SAM9260_ID_TC1
,
567 .flags
= IORESOURCE_IRQ
,
570 .start
= AT91SAM9260_ID_TC2
,
571 .end
= AT91SAM9260_ID_TC2
,
572 .flags
= IORESOURCE_IRQ
,
576 static struct platform_device at91sam9260_tcb0_device
= {
579 .resource
= tcb0_resources
,
580 .num_resources
= ARRAY_SIZE(tcb0_resources
),
583 static struct resource tcb1_resources
[] = {
585 .start
= AT91SAM9260_BASE_TCB1
,
586 .end
= AT91SAM9260_BASE_TCB1
+ SZ_16K
- 1,
587 .flags
= IORESOURCE_MEM
,
590 .start
= AT91SAM9260_ID_TC3
,
591 .end
= AT91SAM9260_ID_TC3
,
592 .flags
= IORESOURCE_IRQ
,
595 .start
= AT91SAM9260_ID_TC4
,
596 .end
= AT91SAM9260_ID_TC4
,
597 .flags
= IORESOURCE_IRQ
,
600 .start
= AT91SAM9260_ID_TC5
,
601 .end
= AT91SAM9260_ID_TC5
,
602 .flags
= IORESOURCE_IRQ
,
606 static struct platform_device at91sam9260_tcb1_device
= {
609 .resource
= tcb1_resources
,
610 .num_resources
= ARRAY_SIZE(tcb1_resources
),
613 static void __init
at91_add_device_tc(void)
615 /* this chip has a separate clock and irq for each TC channel */
616 at91_clock_associate("tc0_clk", &at91sam9260_tcb0_device
.dev
, "t0_clk");
617 at91_clock_associate("tc1_clk", &at91sam9260_tcb0_device
.dev
, "t1_clk");
618 at91_clock_associate("tc2_clk", &at91sam9260_tcb0_device
.dev
, "t2_clk");
619 platform_device_register(&at91sam9260_tcb0_device
);
621 at91_clock_associate("tc3_clk", &at91sam9260_tcb1_device
.dev
, "t0_clk");
622 at91_clock_associate("tc4_clk", &at91sam9260_tcb1_device
.dev
, "t1_clk");
623 at91_clock_associate("tc5_clk", &at91sam9260_tcb1_device
.dev
, "t2_clk");
624 platform_device_register(&at91sam9260_tcb1_device
);
627 static void __init
at91_add_device_tc(void) { }
631 /* --------------------------------------------------------------------
633 * -------------------------------------------------------------------- */
635 static struct resource rtt_resources
[] = {
637 .start
= AT91_BASE_SYS
+ AT91_RTT
,
638 .end
= AT91_BASE_SYS
+ AT91_RTT
+ SZ_16
- 1,
639 .flags
= IORESOURCE_MEM
,
643 static struct platform_device at91sam9260_rtt_device
= {
646 .resource
= rtt_resources
,
647 .num_resources
= ARRAY_SIZE(rtt_resources
),
650 static void __init
at91_add_device_rtt(void)
652 platform_device_register(&at91sam9260_rtt_device
);
656 /* --------------------------------------------------------------------
658 * -------------------------------------------------------------------- */
660 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
661 static struct platform_device at91sam9260_wdt_device
= {
667 static void __init
at91_add_device_watchdog(void)
669 platform_device_register(&at91sam9260_wdt_device
);
672 static void __init
at91_add_device_watchdog(void) {}
676 /* --------------------------------------------------------------------
677 * SSC -- Synchronous Serial Controller
678 * -------------------------------------------------------------------- */
680 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
681 static u64 ssc_dmamask
= DMA_BIT_MASK(32);
683 static struct resource ssc_resources
[] = {
685 .start
= AT91SAM9260_BASE_SSC
,
686 .end
= AT91SAM9260_BASE_SSC
+ SZ_16K
- 1,
687 .flags
= IORESOURCE_MEM
,
690 .start
= AT91SAM9260_ID_SSC
,
691 .end
= AT91SAM9260_ID_SSC
,
692 .flags
= IORESOURCE_IRQ
,
696 static struct platform_device at91sam9260_ssc_device
= {
700 .dma_mask
= &ssc_dmamask
,
701 .coherent_dma_mask
= DMA_BIT_MASK(32),
703 .resource
= ssc_resources
,
704 .num_resources
= ARRAY_SIZE(ssc_resources
),
707 static inline void configure_ssc_pins(unsigned pins
)
709 if (pins
& ATMEL_SSC_TF
)
710 at91_set_A_periph(AT91_PIN_PB17
, 1);
711 if (pins
& ATMEL_SSC_TK
)
712 at91_set_A_periph(AT91_PIN_PB16
, 1);
713 if (pins
& ATMEL_SSC_TD
)
714 at91_set_A_periph(AT91_PIN_PB18
, 1);
715 if (pins
& ATMEL_SSC_RD
)
716 at91_set_A_periph(AT91_PIN_PB19
, 1);
717 if (pins
& ATMEL_SSC_RK
)
718 at91_set_A_periph(AT91_PIN_PB20
, 1);
719 if (pins
& ATMEL_SSC_RF
)
720 at91_set_A_periph(AT91_PIN_PB21
, 1);
724 * SSC controllers are accessed through library code, instead of any
725 * kind of all-singing/all-dancing driver. For example one could be
726 * used by a particular I2S audio codec's driver, while another one
727 * on the same system might be used by a custom data capture driver.
729 void __init
at91_add_device_ssc(unsigned id
, unsigned pins
)
731 struct platform_device
*pdev
;
734 * NOTE: caller is responsible for passing information matching
735 * "pins" to whatever will be using each particular controller.
738 case AT91SAM9260_ID_SSC
:
739 pdev
= &at91sam9260_ssc_device
;
740 configure_ssc_pins(pins
);
741 at91_clock_associate("ssc_clk", &pdev
->dev
, "pclk");
747 platform_device_register(pdev
);
751 void __init
at91_add_device_ssc(unsigned id
, unsigned pins
) {}
755 /* --------------------------------------------------------------------
757 * -------------------------------------------------------------------- */
758 #if defined(CONFIG_SERIAL_ATMEL)
759 static struct resource dbgu_resources
[] = {
761 .start
= AT91_VA_BASE_SYS
+ AT91_DBGU
,
762 .end
= AT91_VA_BASE_SYS
+ AT91_DBGU
+ SZ_512
- 1,
763 .flags
= IORESOURCE_MEM
,
766 .start
= AT91_ID_SYS
,
768 .flags
= IORESOURCE_IRQ
,
772 static struct atmel_uart_data dbgu_data
= {
774 .use_dma_rx
= 0, /* DBGU not capable of receive DMA */
775 .regs
= (void __iomem
*)(AT91_VA_BASE_SYS
+ AT91_DBGU
),
778 static u64 dbgu_dmamask
= DMA_BIT_MASK(32);
780 static struct platform_device at91sam9260_dbgu_device
= {
781 .name
= "atmel_usart",
784 .dma_mask
= &dbgu_dmamask
,
785 .coherent_dma_mask
= DMA_BIT_MASK(32),
786 .platform_data
= &dbgu_data
,
788 .resource
= dbgu_resources
,
789 .num_resources
= ARRAY_SIZE(dbgu_resources
),
792 static inline void configure_dbgu_pins(void)
794 at91_set_A_periph(AT91_PIN_PB14
, 0); /* DRXD */
795 at91_set_A_periph(AT91_PIN_PB15
, 1); /* DTXD */
798 static struct resource uart0_resources
[] = {
800 .start
= AT91SAM9260_BASE_US0
,
801 .end
= AT91SAM9260_BASE_US0
+ SZ_16K
- 1,
802 .flags
= IORESOURCE_MEM
,
805 .start
= AT91SAM9260_ID_US0
,
806 .end
= AT91SAM9260_ID_US0
,
807 .flags
= IORESOURCE_IRQ
,
811 static struct atmel_uart_data uart0_data
= {
816 static u64 uart0_dmamask
= DMA_BIT_MASK(32);
818 static struct platform_device at91sam9260_uart0_device
= {
819 .name
= "atmel_usart",
822 .dma_mask
= &uart0_dmamask
,
823 .coherent_dma_mask
= DMA_BIT_MASK(32),
824 .platform_data
= &uart0_data
,
826 .resource
= uart0_resources
,
827 .num_resources
= ARRAY_SIZE(uart0_resources
),
830 static inline void configure_usart0_pins(unsigned pins
)
832 at91_set_A_periph(AT91_PIN_PB4
, 1); /* TXD0 */
833 at91_set_A_periph(AT91_PIN_PB5
, 0); /* RXD0 */
835 if (pins
& ATMEL_UART_RTS
)
836 at91_set_A_periph(AT91_PIN_PB26
, 0); /* RTS0 */
837 if (pins
& ATMEL_UART_CTS
)
838 at91_set_A_periph(AT91_PIN_PB27
, 0); /* CTS0 */
839 if (pins
& ATMEL_UART_DTR
)
840 at91_set_A_periph(AT91_PIN_PB24
, 0); /* DTR0 */
841 if (pins
& ATMEL_UART_DSR
)
842 at91_set_A_periph(AT91_PIN_PB22
, 0); /* DSR0 */
843 if (pins
& ATMEL_UART_DCD
)
844 at91_set_A_periph(AT91_PIN_PB23
, 0); /* DCD0 */
845 if (pins
& ATMEL_UART_RI
)
846 at91_set_A_periph(AT91_PIN_PB25
, 0); /* RI0 */
849 static struct resource uart1_resources
[] = {
851 .start
= AT91SAM9260_BASE_US1
,
852 .end
= AT91SAM9260_BASE_US1
+ SZ_16K
- 1,
853 .flags
= IORESOURCE_MEM
,
856 .start
= AT91SAM9260_ID_US1
,
857 .end
= AT91SAM9260_ID_US1
,
858 .flags
= IORESOURCE_IRQ
,
862 static struct atmel_uart_data uart1_data
= {
867 static u64 uart1_dmamask
= DMA_BIT_MASK(32);
869 static struct platform_device at91sam9260_uart1_device
= {
870 .name
= "atmel_usart",
873 .dma_mask
= &uart1_dmamask
,
874 .coherent_dma_mask
= DMA_BIT_MASK(32),
875 .platform_data
= &uart1_data
,
877 .resource
= uart1_resources
,
878 .num_resources
= ARRAY_SIZE(uart1_resources
),
881 static inline void configure_usart1_pins(unsigned pins
)
883 at91_set_A_periph(AT91_PIN_PB6
, 1); /* TXD1 */
884 at91_set_A_periph(AT91_PIN_PB7
, 0); /* RXD1 */
886 if (pins
& ATMEL_UART_RTS
)
887 at91_set_A_periph(AT91_PIN_PB28
, 0); /* RTS1 */
888 if (pins
& ATMEL_UART_CTS
)
889 at91_set_A_periph(AT91_PIN_PB29
, 0); /* CTS1 */
892 static struct resource uart2_resources
[] = {
894 .start
= AT91SAM9260_BASE_US2
,
895 .end
= AT91SAM9260_BASE_US2
+ SZ_16K
- 1,
896 .flags
= IORESOURCE_MEM
,
899 .start
= AT91SAM9260_ID_US2
,
900 .end
= AT91SAM9260_ID_US2
,
901 .flags
= IORESOURCE_IRQ
,
905 static struct atmel_uart_data uart2_data
= {
910 static u64 uart2_dmamask
= DMA_BIT_MASK(32);
912 static struct platform_device at91sam9260_uart2_device
= {
913 .name
= "atmel_usart",
916 .dma_mask
= &uart2_dmamask
,
917 .coherent_dma_mask
= DMA_BIT_MASK(32),
918 .platform_data
= &uart2_data
,
920 .resource
= uart2_resources
,
921 .num_resources
= ARRAY_SIZE(uart2_resources
),
924 static inline void configure_usart2_pins(unsigned pins
)
926 at91_set_A_periph(AT91_PIN_PB8
, 1); /* TXD2 */
927 at91_set_A_periph(AT91_PIN_PB9
, 0); /* RXD2 */
929 if (pins
& ATMEL_UART_RTS
)
930 at91_set_A_periph(AT91_PIN_PA4
, 0); /* RTS2 */
931 if (pins
& ATMEL_UART_CTS
)
932 at91_set_A_periph(AT91_PIN_PA5
, 0); /* CTS2 */
935 static struct resource uart3_resources
[] = {
937 .start
= AT91SAM9260_BASE_US3
,
938 .end
= AT91SAM9260_BASE_US3
+ SZ_16K
- 1,
939 .flags
= IORESOURCE_MEM
,
942 .start
= AT91SAM9260_ID_US3
,
943 .end
= AT91SAM9260_ID_US3
,
944 .flags
= IORESOURCE_IRQ
,
948 static struct atmel_uart_data uart3_data
= {
953 static u64 uart3_dmamask
= DMA_BIT_MASK(32);
955 static struct platform_device at91sam9260_uart3_device
= {
956 .name
= "atmel_usart",
959 .dma_mask
= &uart3_dmamask
,
960 .coherent_dma_mask
= DMA_BIT_MASK(32),
961 .platform_data
= &uart3_data
,
963 .resource
= uart3_resources
,
964 .num_resources
= ARRAY_SIZE(uart3_resources
),
967 static inline void configure_usart3_pins(unsigned pins
)
969 at91_set_A_periph(AT91_PIN_PB10
, 1); /* TXD3 */
970 at91_set_A_periph(AT91_PIN_PB11
, 0); /* RXD3 */
972 if (pins
& ATMEL_UART_RTS
)
973 at91_set_B_periph(AT91_PIN_PC8
, 0); /* RTS3 */
974 if (pins
& ATMEL_UART_CTS
)
975 at91_set_B_periph(AT91_PIN_PC10
, 0); /* CTS3 */
978 static struct resource uart4_resources
[] = {
980 .start
= AT91SAM9260_BASE_US4
,
981 .end
= AT91SAM9260_BASE_US4
+ SZ_16K
- 1,
982 .flags
= IORESOURCE_MEM
,
985 .start
= AT91SAM9260_ID_US4
,
986 .end
= AT91SAM9260_ID_US4
,
987 .flags
= IORESOURCE_IRQ
,
991 static struct atmel_uart_data uart4_data
= {
996 static u64 uart4_dmamask
= DMA_BIT_MASK(32);
998 static struct platform_device at91sam9260_uart4_device
= {
999 .name
= "atmel_usart",
1002 .dma_mask
= &uart4_dmamask
,
1003 .coherent_dma_mask
= DMA_BIT_MASK(32),
1004 .platform_data
= &uart4_data
,
1006 .resource
= uart4_resources
,
1007 .num_resources
= ARRAY_SIZE(uart4_resources
),
1010 static inline void configure_usart4_pins(void)
1012 at91_set_B_periph(AT91_PIN_PA31
, 1); /* TXD4 */
1013 at91_set_B_periph(AT91_PIN_PA30
, 0); /* RXD4 */
1016 static struct resource uart5_resources
[] = {
1018 .start
= AT91SAM9260_BASE_US5
,
1019 .end
= AT91SAM9260_BASE_US5
+ SZ_16K
- 1,
1020 .flags
= IORESOURCE_MEM
,
1023 .start
= AT91SAM9260_ID_US5
,
1024 .end
= AT91SAM9260_ID_US5
,
1025 .flags
= IORESOURCE_IRQ
,
1029 static struct atmel_uart_data uart5_data
= {
1034 static u64 uart5_dmamask
= DMA_BIT_MASK(32);
1036 static struct platform_device at91sam9260_uart5_device
= {
1037 .name
= "atmel_usart",
1040 .dma_mask
= &uart5_dmamask
,
1041 .coherent_dma_mask
= DMA_BIT_MASK(32),
1042 .platform_data
= &uart5_data
,
1044 .resource
= uart5_resources
,
1045 .num_resources
= ARRAY_SIZE(uart5_resources
),
1048 static inline void configure_usart5_pins(void)
1050 at91_set_A_periph(AT91_PIN_PB12
, 1); /* TXD5 */
1051 at91_set_A_periph(AT91_PIN_PB13
, 0); /* RXD5 */
1054 static struct platform_device
*at91_uarts
[ATMEL_MAX_UART
]; /* the UARTs to use */
1055 struct platform_device
*atmel_default_console_device
; /* the serial console device */
1057 void __init __deprecated
at91_init_serial(struct at91_uart_config
*config
)
1061 /* Fill in list of supported UARTs */
1062 for (i
= 0; i
< config
->nr_tty
; i
++) {
1063 switch (config
->tty_map
[i
]) {
1065 configure_usart0_pins(ATMEL_UART_CTS
| ATMEL_UART_RTS
| ATMEL_UART_DSR
| ATMEL_UART_DTR
| ATMEL_UART_DCD
| ATMEL_UART_RI
);
1066 at91_uarts
[i
] = &at91sam9260_uart0_device
;
1067 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device
.dev
, "usart");
1070 configure_usart1_pins(ATMEL_UART_CTS
| ATMEL_UART_RTS
);
1071 at91_uarts
[i
] = &at91sam9260_uart1_device
;
1072 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device
.dev
, "usart");
1075 configure_usart2_pins(0);
1076 at91_uarts
[i
] = &at91sam9260_uart2_device
;
1077 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device
.dev
, "usart");
1080 configure_usart3_pins(0);
1081 at91_uarts
[i
] = &at91sam9260_uart3_device
;
1082 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device
.dev
, "usart");
1085 configure_usart4_pins();
1086 at91_uarts
[i
] = &at91sam9260_uart4_device
;
1087 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device
.dev
, "usart");
1090 configure_usart5_pins();
1091 at91_uarts
[i
] = &at91sam9260_uart5_device
;
1092 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device
.dev
, "usart");
1095 configure_dbgu_pins();
1096 at91_uarts
[i
] = &at91sam9260_dbgu_device
;
1097 at91_clock_associate("mck", &at91sam9260_dbgu_device
.dev
, "usart");
1102 at91_uarts
[i
]->id
= i
; /* update ID number to mapped ID */
1105 /* Set serial console device */
1106 if (config
->console_tty
< ATMEL_MAX_UART
)
1107 atmel_default_console_device
= at91_uarts
[config
->console_tty
];
1108 if (!atmel_default_console_device
)
1109 printk(KERN_INFO
"AT91: No default serial console defined.\n");
1112 void __init
at91_register_uart(unsigned id
, unsigned portnr
, unsigned pins
)
1114 struct platform_device
*pdev
;
1118 pdev
= &at91sam9260_dbgu_device
;
1119 configure_dbgu_pins();
1120 at91_clock_associate("mck", &pdev
->dev
, "usart");
1122 case AT91SAM9260_ID_US0
:
1123 pdev
= &at91sam9260_uart0_device
;
1124 configure_usart0_pins(pins
);
1125 at91_clock_associate("usart0_clk", &pdev
->dev
, "usart");
1127 case AT91SAM9260_ID_US1
:
1128 pdev
= &at91sam9260_uart1_device
;
1129 configure_usart1_pins(pins
);
1130 at91_clock_associate("usart1_clk", &pdev
->dev
, "usart");
1132 case AT91SAM9260_ID_US2
:
1133 pdev
= &at91sam9260_uart2_device
;
1134 configure_usart2_pins(pins
);
1135 at91_clock_associate("usart2_clk", &pdev
->dev
, "usart");
1137 case AT91SAM9260_ID_US3
:
1138 pdev
= &at91sam9260_uart3_device
;
1139 configure_usart3_pins(pins
);
1140 at91_clock_associate("usart3_clk", &pdev
->dev
, "usart");
1142 case AT91SAM9260_ID_US4
:
1143 pdev
= &at91sam9260_uart4_device
;
1144 configure_usart4_pins();
1145 at91_clock_associate("usart4_clk", &pdev
->dev
, "usart");
1147 case AT91SAM9260_ID_US5
:
1148 pdev
= &at91sam9260_uart5_device
;
1149 configure_usart5_pins();
1150 at91_clock_associate("usart5_clk", &pdev
->dev
, "usart");
1155 pdev
->id
= portnr
; /* update to mapped ID */
1157 if (portnr
< ATMEL_MAX_UART
)
1158 at91_uarts
[portnr
] = pdev
;
1161 void __init
at91_set_serial_console(unsigned portnr
)
1163 if (portnr
< ATMEL_MAX_UART
)
1164 atmel_default_console_device
= at91_uarts
[portnr
];
1165 if (!atmel_default_console_device
)
1166 printk(KERN_INFO
"AT91: No default serial console defined.\n");
1169 void __init
at91_add_device_serial(void)
1173 for (i
= 0; i
< ATMEL_MAX_UART
; i
++) {
1175 platform_device_register(at91_uarts
[i
]);
1179 void __init __deprecated
at91_init_serial(struct at91_uart_config
*config
) {}
1180 void __init
at91_register_uart(unsigned id
, unsigned portnr
, unsigned pins
) {}
1181 void __init
at91_set_serial_console(unsigned portnr
) {}
1182 void __init
at91_add_device_serial(void) {}
1186 /* -------------------------------------------------------------------- */
1188 * These devices are always present and don't need any board-specific
1191 static int __init
at91_add_standard_devices(void)
1193 at91_add_device_rtt();
1194 at91_add_device_watchdog();
1195 at91_add_device_tc();
1199 arch_initcall(at91_add_standard_devices
);