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/gpio.h>
17 #include <linux/platform_device.h>
18 #include <linux/i2c-gpio.h>
20 #include <linux/platform_data/at91_adc.h>
23 #include <mach/at91sam9260.h>
24 #include <mach/at91sam9260_matrix.h>
25 #include <mach/at91_matrix.h>
26 #include <mach/at91sam9_smc.h>
27 #include <mach/hardware.h>
33 /* --------------------------------------------------------------------
35 * -------------------------------------------------------------------- */
37 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
38 static u64 ohci_dmamask = DMA_BIT_MASK(32);
39 static struct at91_usbh_data usbh_data;
41 static struct resource usbh_resources[] = {
43 .start = AT91SAM9260_UHP_BASE,
44 .end = AT91SAM9260_UHP_BASE + SZ_1M - 1,
45 .flags = IORESOURCE_MEM,
48 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_UHP,
49 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_UHP,
50 .flags = IORESOURCE_IRQ,
54 static struct platform_device at91_usbh_device = {
58 .dma_mask = &ohci_dmamask,
59 .coherent_dma_mask = DMA_BIT_MASK(32),
60 .platform_data = &usbh_data,
62 .resource = usbh_resources,
63 .num_resources = ARRAY_SIZE(usbh_resources),
66 void __init at91_add_device_usbh(struct at91_usbh_data *data)
73 /* Enable overcurrent notification */
74 for (i = 0; i < data->ports; i++) {
75 if (gpio_is_valid(data->overcurrent_pin[i]))
76 at91_set_gpio_input(data->overcurrent_pin[i], 1);
80 platform_device_register(&at91_usbh_device);
83 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
87 /* --------------------------------------------------------------------
89 * -------------------------------------------------------------------- */
91 #if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
92 static struct at91_udc_data udc_data;
94 static struct resource udc_resources[] = {
96 .start = AT91SAM9260_BASE_UDP,
97 .end = AT91SAM9260_BASE_UDP + SZ_16K - 1,
98 .flags = IORESOURCE_MEM,
101 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_UDP,
102 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_UDP,
103 .flags = IORESOURCE_IRQ,
107 static struct platform_device at91_udc_device = {
111 .platform_data = &udc_data,
113 .resource = udc_resources,
114 .num_resources = ARRAY_SIZE(udc_resources),
117 void __init at91_add_device_udc(struct at91_udc_data *data)
122 if (gpio_is_valid(data->vbus_pin)) {
123 at91_set_gpio_input(data->vbus_pin, 0);
124 at91_set_deglitch(data->vbus_pin, 1);
127 /* Pullup pin is handled internally by USB device peripheral */
130 platform_device_register(&at91_udc_device);
133 void __init at91_add_device_udc(struct at91_udc_data *data) {}
137 /* --------------------------------------------------------------------
139 * -------------------------------------------------------------------- */
141 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
142 static u64 eth_dmamask = DMA_BIT_MASK(32);
143 static struct macb_platform_data eth_data;
145 static struct resource eth_resources[] = {
147 .start = AT91SAM9260_BASE_EMAC,
148 .end = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
149 .flags = IORESOURCE_MEM,
152 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_EMAC,
153 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_EMAC,
154 .flags = IORESOURCE_IRQ,
158 static struct platform_device at91sam9260_eth_device = {
162 .dma_mask = ð_dmamask,
163 .coherent_dma_mask = DMA_BIT_MASK(32),
164 .platform_data = ð_data,
166 .resource = eth_resources,
167 .num_resources = ARRAY_SIZE(eth_resources),
170 void __init at91_add_device_eth(struct macb_platform_data *data)
175 if (gpio_is_valid(data->phy_irq_pin)) {
176 at91_set_gpio_input(data->phy_irq_pin, 0);
177 at91_set_deglitch(data->phy_irq_pin, 1);
180 /* Pins used for MII and RMII */
181 at91_set_A_periph(AT91_PIN_PA19, 0); /* ETXCK_EREFCK */
182 at91_set_A_periph(AT91_PIN_PA17, 0); /* ERXDV */
183 at91_set_A_periph(AT91_PIN_PA14, 0); /* ERX0 */
184 at91_set_A_periph(AT91_PIN_PA15, 0); /* ERX1 */
185 at91_set_A_periph(AT91_PIN_PA18, 0); /* ERXER */
186 at91_set_A_periph(AT91_PIN_PA16, 0); /* ETXEN */
187 at91_set_A_periph(AT91_PIN_PA12, 0); /* ETX0 */
188 at91_set_A_periph(AT91_PIN_PA13, 0); /* ETX1 */
189 at91_set_A_periph(AT91_PIN_PA21, 0); /* EMDIO */
190 at91_set_A_periph(AT91_PIN_PA20, 0); /* EMDC */
192 if (!data->is_rmii) {
193 at91_set_B_periph(AT91_PIN_PA28, 0); /* ECRS */
194 at91_set_B_periph(AT91_PIN_PA29, 0); /* ECOL */
195 at91_set_B_periph(AT91_PIN_PA25, 0); /* ERX2 */
196 at91_set_B_periph(AT91_PIN_PA26, 0); /* ERX3 */
197 at91_set_B_periph(AT91_PIN_PA27, 0); /* ERXCK */
198 at91_set_B_periph(AT91_PIN_PA23, 0); /* ETX2 */
199 at91_set_B_periph(AT91_PIN_PA24, 0); /* ETX3 */
200 at91_set_B_periph(AT91_PIN_PA22, 0); /* ETXER */
204 platform_device_register(&at91sam9260_eth_device);
207 void __init at91_add_device_eth(struct macb_platform_data *data) {}
211 /* --------------------------------------------------------------------
212 * MMC / SD Slot for Atmel MCI Driver
213 * -------------------------------------------------------------------- */
215 #if IS_ENABLED(CONFIG_MMC_ATMELMCI)
216 static u64 mmc_dmamask = DMA_BIT_MASK(32);
217 static struct mci_platform_data mmc_data;
219 static struct resource mmc_resources[] = {
221 .start = AT91SAM9260_BASE_MCI,
222 .end = AT91SAM9260_BASE_MCI + SZ_16K - 1,
223 .flags = IORESOURCE_MEM,
226 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_MCI,
227 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_MCI,
228 .flags = IORESOURCE_IRQ,
232 static struct platform_device at91sam9260_mmc_device = {
236 .dma_mask = &mmc_dmamask,
237 .coherent_dma_mask = DMA_BIT_MASK(32),
238 .platform_data = &mmc_data,
240 .resource = mmc_resources,
241 .num_resources = ARRAY_SIZE(mmc_resources),
244 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
247 unsigned int slot_count = 0;
252 for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
253 if (data->slot[i].bus_width) {
255 if (gpio_is_valid(data->slot[i].detect_pin)) {
256 at91_set_gpio_input(data->slot[i].detect_pin, 1);
257 at91_set_deglitch(data->slot[i].detect_pin, 1);
259 if (gpio_is_valid(data->slot[i].wp_pin))
260 at91_set_gpio_input(data->slot[i].wp_pin, 1);
265 at91_set_A_periph(AT91_PIN_PA7, 1);
266 /* DAT0, maybe DAT1..DAT3 */
267 at91_set_A_periph(AT91_PIN_PA6, 1);
268 if (data->slot[i].bus_width == 4) {
269 at91_set_A_periph(AT91_PIN_PA9, 1);
270 at91_set_A_periph(AT91_PIN_PA10, 1);
271 at91_set_A_periph(AT91_PIN_PA11, 1);
277 at91_set_B_periph(AT91_PIN_PA1, 1);
278 /* DAT0, maybe DAT1..DAT3 */
279 at91_set_B_periph(AT91_PIN_PA0, 1);
280 if (data->slot[i].bus_width == 4) {
281 at91_set_B_periph(AT91_PIN_PA5, 1);
282 at91_set_B_periph(AT91_PIN_PA4, 1);
283 at91_set_B_periph(AT91_PIN_PA3, 1);
289 "AT91: SD/MMC slot %d not available\n", i);
297 at91_set_A_periph(AT91_PIN_PA8, 0);
300 platform_device_register(&at91sam9260_mmc_device);
304 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
308 /* --------------------------------------------------------------------
310 * -------------------------------------------------------------------- */
312 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
313 static struct atmel_nand_data nand_data;
315 #define NAND_BASE AT91_CHIPSELECT_3
317 static struct resource nand_resources[] = {
320 .end = NAND_BASE + SZ_256M - 1,
321 .flags = IORESOURCE_MEM,
324 .start = AT91SAM9260_BASE_ECC,
325 .end = AT91SAM9260_BASE_ECC + SZ_512 - 1,
326 .flags = IORESOURCE_MEM,
330 static struct platform_device at91sam9260_nand_device = {
331 .name = "atmel_nand",
334 .platform_data = &nand_data,
336 .resource = nand_resources,
337 .num_resources = ARRAY_SIZE(nand_resources),
340 void __init at91_add_device_nand(struct atmel_nand_data *data)
347 csa = at91_matrix_read(AT91_MATRIX_EBICSA);
348 at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
351 if (gpio_is_valid(data->enable_pin))
352 at91_set_gpio_output(data->enable_pin, 1);
355 if (gpio_is_valid(data->rdy_pin))
356 at91_set_gpio_input(data->rdy_pin, 1);
358 /* card detect pin */
359 if (gpio_is_valid(data->det_pin))
360 at91_set_gpio_input(data->det_pin, 1);
363 platform_device_register(&at91sam9260_nand_device);
366 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
370 /* --------------------------------------------------------------------
372 * -------------------------------------------------------------------- */
375 * Prefer the GPIO code since the TWI controller isn't robust
376 * (gets overruns and underruns under load) and can only issue
377 * repeated STARTs in one scenario (the driver doesn't yet handle them).
380 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
382 static struct i2c_gpio_platform_data pdata = {
383 .sda_pin = AT91_PIN_PA23,
384 .sda_is_open_drain = 1,
385 .scl_pin = AT91_PIN_PA24,
386 .scl_is_open_drain = 1,
387 .udelay = 2, /* ~100 kHz */
390 static struct platform_device at91sam9260_twi_device = {
393 .dev.platform_data = &pdata,
396 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
398 at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
399 at91_set_multi_drive(AT91_PIN_PA23, 1);
401 at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
402 at91_set_multi_drive(AT91_PIN_PA24, 1);
404 i2c_register_board_info(0, devices, nr_devices);
405 platform_device_register(&at91sam9260_twi_device);
408 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
410 static struct resource twi_resources[] = {
412 .start = AT91SAM9260_BASE_TWI,
413 .end = AT91SAM9260_BASE_TWI + SZ_16K - 1,
414 .flags = IORESOURCE_MEM,
417 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TWI,
418 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TWI,
419 .flags = IORESOURCE_IRQ,
423 static struct platform_device at91sam9260_twi_device = {
425 .resource = twi_resources,
426 .num_resources = ARRAY_SIZE(twi_resources),
429 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
431 /* IP version is not the same on 9260 and g20 */
432 if (cpu_is_at91sam9g20()) {
433 at91sam9260_twi_device.name = "i2c-at91sam9g20";
435 at91sam9260_twi_device.name = "i2c-at91sam9260";
438 /* pins used for TWI interface */
439 at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */
440 at91_set_multi_drive(AT91_PIN_PA23, 1);
442 at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
443 at91_set_multi_drive(AT91_PIN_PA24, 1);
445 i2c_register_board_info(0, devices, nr_devices);
446 platform_device_register(&at91sam9260_twi_device);
449 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
453 /* --------------------------------------------------------------------
455 * -------------------------------------------------------------------- */
457 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
458 static u64 spi_dmamask = DMA_BIT_MASK(32);
460 static struct resource spi0_resources[] = {
462 .start = AT91SAM9260_BASE_SPI0,
463 .end = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
464 .flags = IORESOURCE_MEM,
467 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_SPI0,
468 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_SPI0,
469 .flags = IORESOURCE_IRQ,
473 static struct platform_device at91sam9260_spi0_device = {
477 .dma_mask = &spi_dmamask,
478 .coherent_dma_mask = DMA_BIT_MASK(32),
480 .resource = spi0_resources,
481 .num_resources = ARRAY_SIZE(spi0_resources),
484 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
486 static struct resource spi1_resources[] = {
488 .start = AT91SAM9260_BASE_SPI1,
489 .end = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
490 .flags = IORESOURCE_MEM,
493 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_SPI1,
494 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_SPI1,
495 .flags = IORESOURCE_IRQ,
499 static struct platform_device at91sam9260_spi1_device = {
503 .dma_mask = &spi_dmamask,
504 .coherent_dma_mask = DMA_BIT_MASK(32),
506 .resource = spi1_resources,
507 .num_resources = ARRAY_SIZE(spi1_resources),
510 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
512 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
515 unsigned long cs_pin;
516 short enable_spi0 = 0;
517 short enable_spi1 = 0;
519 /* Choose SPI chip-selects */
520 for (i = 0; i < nr_devices; i++) {
521 if (devices[i].controller_data)
522 cs_pin = (unsigned long) devices[i].controller_data;
523 else if (devices[i].bus_num == 0)
524 cs_pin = spi0_standard_cs[devices[i].chip_select];
526 cs_pin = spi1_standard_cs[devices[i].chip_select];
528 if (!gpio_is_valid(cs_pin))
531 if (devices[i].bus_num == 0)
536 /* enable chip-select pin */
537 at91_set_gpio_output(cs_pin, 1);
539 /* pass chip-select pin to driver */
540 devices[i].controller_data = (void *) cs_pin;
543 spi_register_board_info(devices, nr_devices);
545 /* Configure SPI bus(es) */
547 at91_set_A_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
548 at91_set_A_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
549 at91_set_A_periph(AT91_PIN_PA2, 0); /* SPI1_SPCK */
551 platform_device_register(&at91sam9260_spi0_device);
554 at91_set_A_periph(AT91_PIN_PB0, 0); /* SPI1_MISO */
555 at91_set_A_periph(AT91_PIN_PB1, 0); /* SPI1_MOSI */
556 at91_set_A_periph(AT91_PIN_PB2, 0); /* SPI1_SPCK */
558 platform_device_register(&at91sam9260_spi1_device);
562 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
566 /* --------------------------------------------------------------------
567 * Timer/Counter blocks
568 * -------------------------------------------------------------------- */
570 #ifdef CONFIG_ATMEL_TCLIB
572 static struct resource tcb0_resources[] = {
574 .start = AT91SAM9260_BASE_TCB0,
575 .end = AT91SAM9260_BASE_TCB0 + SZ_256 - 1,
576 .flags = IORESOURCE_MEM,
579 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TC0,
580 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TC0,
581 .flags = IORESOURCE_IRQ,
584 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TC1,
585 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TC1,
586 .flags = IORESOURCE_IRQ,
589 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TC2,
590 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TC2,
591 .flags = IORESOURCE_IRQ,
595 static struct platform_device at91sam9260_tcb0_device = {
598 .resource = tcb0_resources,
599 .num_resources = ARRAY_SIZE(tcb0_resources),
602 static struct resource tcb1_resources[] = {
604 .start = AT91SAM9260_BASE_TCB1,
605 .end = AT91SAM9260_BASE_TCB1 + SZ_256 - 1,
606 .flags = IORESOURCE_MEM,
609 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TC3,
610 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TC3,
611 .flags = IORESOURCE_IRQ,
614 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TC4,
615 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TC4,
616 .flags = IORESOURCE_IRQ,
619 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_TC5,
620 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_TC5,
621 .flags = IORESOURCE_IRQ,
625 static struct platform_device at91sam9260_tcb1_device = {
628 .resource = tcb1_resources,
629 .num_resources = ARRAY_SIZE(tcb1_resources),
632 static void __init at91_add_device_tc(void)
634 platform_device_register(&at91sam9260_tcb0_device);
635 platform_device_register(&at91sam9260_tcb1_device);
638 static void __init at91_add_device_tc(void) { }
642 /* --------------------------------------------------------------------
644 * -------------------------------------------------------------------- */
646 static struct resource rtt_resources[] = {
648 .start = AT91SAM9260_BASE_RTT,
649 .end = AT91SAM9260_BASE_RTT + SZ_16 - 1,
650 .flags = IORESOURCE_MEM,
652 .flags = IORESOURCE_MEM,
654 .flags = IORESOURCE_IRQ,
658 static struct platform_device at91sam9260_rtt_device = {
661 .resource = rtt_resources,
665 #if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
666 static void __init at91_add_device_rtt_rtc(void)
668 at91sam9260_rtt_device.name = "rtc-at91sam9";
670 * The second resource is needed:
671 * GPBR will serve as the storage for RTC time offset
673 at91sam9260_rtt_device.num_resources = 3;
674 rtt_resources[1].start = AT91SAM9260_BASE_GPBR +
675 4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
676 rtt_resources[1].end = rtt_resources[1].start + 3;
677 rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
678 rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
681 static void __init at91_add_device_rtt_rtc(void)
683 /* Only one resource is needed: RTT not used as RTC */
684 at91sam9260_rtt_device.num_resources = 1;
688 static void __init at91_add_device_rtt(void)
690 at91_add_device_rtt_rtc();
691 platform_device_register(&at91sam9260_rtt_device);
695 /* --------------------------------------------------------------------
697 * -------------------------------------------------------------------- */
699 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
700 static struct resource wdt_resources[] = {
702 .start = AT91SAM9260_BASE_WDT,
703 .end = AT91SAM9260_BASE_WDT + SZ_16 - 1,
704 .flags = IORESOURCE_MEM,
708 static struct platform_device at91sam9260_wdt_device = {
711 .resource = wdt_resources,
712 .num_resources = ARRAY_SIZE(wdt_resources),
715 static void __init at91_add_device_watchdog(void)
717 platform_device_register(&at91sam9260_wdt_device);
720 static void __init at91_add_device_watchdog(void) {}
724 /* --------------------------------------------------------------------
725 * SSC -- Synchronous Serial Controller
726 * -------------------------------------------------------------------- */
728 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
729 static u64 ssc_dmamask = DMA_BIT_MASK(32);
731 static struct resource ssc_resources[] = {
733 .start = AT91SAM9260_BASE_SSC,
734 .end = AT91SAM9260_BASE_SSC + SZ_16K - 1,
735 .flags = IORESOURCE_MEM,
738 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_SSC,
739 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_SSC,
740 .flags = IORESOURCE_IRQ,
744 static struct platform_device at91sam9260_ssc_device = {
745 .name = "at91rm9200_ssc",
748 .dma_mask = &ssc_dmamask,
749 .coherent_dma_mask = DMA_BIT_MASK(32),
751 .resource = ssc_resources,
752 .num_resources = ARRAY_SIZE(ssc_resources),
755 static inline void configure_ssc_pins(unsigned pins)
757 if (pins & ATMEL_SSC_TF)
758 at91_set_A_periph(AT91_PIN_PB17, 1);
759 if (pins & ATMEL_SSC_TK)
760 at91_set_A_periph(AT91_PIN_PB16, 1);
761 if (pins & ATMEL_SSC_TD)
762 at91_set_A_periph(AT91_PIN_PB18, 1);
763 if (pins & ATMEL_SSC_RD)
764 at91_set_A_periph(AT91_PIN_PB19, 1);
765 if (pins & ATMEL_SSC_RK)
766 at91_set_A_periph(AT91_PIN_PB20, 1);
767 if (pins & ATMEL_SSC_RF)
768 at91_set_A_periph(AT91_PIN_PB21, 1);
772 * SSC controllers are accessed through library code, instead of any
773 * kind of all-singing/all-dancing driver. For example one could be
774 * used by a particular I2S audio codec's driver, while another one
775 * on the same system might be used by a custom data capture driver.
777 void __init at91_add_device_ssc(unsigned id, unsigned pins)
779 struct platform_device *pdev;
782 * NOTE: caller is responsible for passing information matching
783 * "pins" to whatever will be using each particular controller.
786 case AT91SAM9260_ID_SSC:
787 pdev = &at91sam9260_ssc_device;
788 configure_ssc_pins(pins);
794 platform_device_register(pdev);
798 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
802 /* --------------------------------------------------------------------
804 * -------------------------------------------------------------------- */
805 #if defined(CONFIG_SERIAL_ATMEL)
806 static struct resource dbgu_resources[] = {
808 .start = AT91SAM9260_BASE_DBGU,
809 .end = AT91SAM9260_BASE_DBGU + SZ_512 - 1,
810 .flags = IORESOURCE_MEM,
813 .start = NR_IRQS_LEGACY + AT91_ID_SYS,
814 .end = NR_IRQS_LEGACY + AT91_ID_SYS,
815 .flags = IORESOURCE_IRQ,
819 static struct atmel_uart_data dbgu_data = {
821 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
825 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
827 static struct platform_device at91sam9260_dbgu_device = {
828 .name = "atmel_usart",
831 .dma_mask = &dbgu_dmamask,
832 .coherent_dma_mask = DMA_BIT_MASK(32),
833 .platform_data = &dbgu_data,
835 .resource = dbgu_resources,
836 .num_resources = ARRAY_SIZE(dbgu_resources),
839 static inline void configure_dbgu_pins(void)
841 at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
842 at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
845 static struct resource uart0_resources[] = {
847 .start = AT91SAM9260_BASE_US0,
848 .end = AT91SAM9260_BASE_US0 + SZ_16K - 1,
849 .flags = IORESOURCE_MEM,
852 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_US0,
853 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_US0,
854 .flags = IORESOURCE_IRQ,
858 static struct atmel_uart_data uart0_data = {
864 static u64 uart0_dmamask = DMA_BIT_MASK(32);
866 static struct platform_device at91sam9260_uart0_device = {
867 .name = "atmel_usart",
870 .dma_mask = &uart0_dmamask,
871 .coherent_dma_mask = DMA_BIT_MASK(32),
872 .platform_data = &uart0_data,
874 .resource = uart0_resources,
875 .num_resources = ARRAY_SIZE(uart0_resources),
878 static inline void configure_usart0_pins(unsigned pins)
880 at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
881 at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
883 if (pins & ATMEL_UART_RTS)
884 at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */
885 if (pins & ATMEL_UART_CTS)
886 at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */
887 if (pins & ATMEL_UART_DTR)
888 at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */
889 if (pins & ATMEL_UART_DSR)
890 at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */
891 if (pins & ATMEL_UART_DCD)
892 at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */
893 if (pins & ATMEL_UART_RI)
894 at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */
897 static struct resource uart1_resources[] = {
899 .start = AT91SAM9260_BASE_US1,
900 .end = AT91SAM9260_BASE_US1 + SZ_16K - 1,
901 .flags = IORESOURCE_MEM,
904 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_US1,
905 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_US1,
906 .flags = IORESOURCE_IRQ,
910 static struct atmel_uart_data uart1_data = {
916 static u64 uart1_dmamask = DMA_BIT_MASK(32);
918 static struct platform_device at91sam9260_uart1_device = {
919 .name = "atmel_usart",
922 .dma_mask = &uart1_dmamask,
923 .coherent_dma_mask = DMA_BIT_MASK(32),
924 .platform_data = &uart1_data,
926 .resource = uart1_resources,
927 .num_resources = ARRAY_SIZE(uart1_resources),
930 static inline void configure_usart1_pins(unsigned pins)
932 at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
933 at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
935 if (pins & ATMEL_UART_RTS)
936 at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */
937 if (pins & ATMEL_UART_CTS)
938 at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */
941 static struct resource uart2_resources[] = {
943 .start = AT91SAM9260_BASE_US2,
944 .end = AT91SAM9260_BASE_US2 + SZ_16K - 1,
945 .flags = IORESOURCE_MEM,
948 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_US2,
949 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_US2,
950 .flags = IORESOURCE_IRQ,
954 static struct atmel_uart_data uart2_data = {
960 static u64 uart2_dmamask = DMA_BIT_MASK(32);
962 static struct platform_device at91sam9260_uart2_device = {
963 .name = "atmel_usart",
966 .dma_mask = &uart2_dmamask,
967 .coherent_dma_mask = DMA_BIT_MASK(32),
968 .platform_data = &uart2_data,
970 .resource = uart2_resources,
971 .num_resources = ARRAY_SIZE(uart2_resources),
974 static inline void configure_usart2_pins(unsigned pins)
976 at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
977 at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
979 if (pins & ATMEL_UART_RTS)
980 at91_set_A_periph(AT91_PIN_PA4, 0); /* RTS2 */
981 if (pins & ATMEL_UART_CTS)
982 at91_set_A_periph(AT91_PIN_PA5, 0); /* CTS2 */
985 static struct resource uart3_resources[] = {
987 .start = AT91SAM9260_BASE_US3,
988 .end = AT91SAM9260_BASE_US3 + SZ_16K - 1,
989 .flags = IORESOURCE_MEM,
992 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_US3,
993 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_US3,
994 .flags = IORESOURCE_IRQ,
998 static struct atmel_uart_data uart3_data = {
1001 .rts_gpio = -EINVAL,
1004 static u64 uart3_dmamask = DMA_BIT_MASK(32);
1006 static struct platform_device at91sam9260_uart3_device = {
1007 .name = "atmel_usart",
1010 .dma_mask = &uart3_dmamask,
1011 .coherent_dma_mask = DMA_BIT_MASK(32),
1012 .platform_data = &uart3_data,
1014 .resource = uart3_resources,
1015 .num_resources = ARRAY_SIZE(uart3_resources),
1018 static inline void configure_usart3_pins(unsigned pins)
1020 at91_set_A_periph(AT91_PIN_PB10, 1); /* TXD3 */
1021 at91_set_A_periph(AT91_PIN_PB11, 0); /* RXD3 */
1023 if (pins & ATMEL_UART_RTS)
1024 at91_set_B_periph(AT91_PIN_PC8, 0); /* RTS3 */
1025 if (pins & ATMEL_UART_CTS)
1026 at91_set_B_periph(AT91_PIN_PC10, 0); /* CTS3 */
1029 static struct resource uart4_resources[] = {
1031 .start = AT91SAM9260_BASE_US4,
1032 .end = AT91SAM9260_BASE_US4 + SZ_16K - 1,
1033 .flags = IORESOURCE_MEM,
1036 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_US4,
1037 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_US4,
1038 .flags = IORESOURCE_IRQ,
1042 static struct atmel_uart_data uart4_data = {
1045 .rts_gpio = -EINVAL,
1048 static u64 uart4_dmamask = DMA_BIT_MASK(32);
1050 static struct platform_device at91sam9260_uart4_device = {
1051 .name = "atmel_usart",
1054 .dma_mask = &uart4_dmamask,
1055 .coherent_dma_mask = DMA_BIT_MASK(32),
1056 .platform_data = &uart4_data,
1058 .resource = uart4_resources,
1059 .num_resources = ARRAY_SIZE(uart4_resources),
1062 static inline void configure_usart4_pins(void)
1064 at91_set_B_periph(AT91_PIN_PA31, 1); /* TXD4 */
1065 at91_set_B_periph(AT91_PIN_PA30, 0); /* RXD4 */
1068 static struct resource uart5_resources[] = {
1070 .start = AT91SAM9260_BASE_US5,
1071 .end = AT91SAM9260_BASE_US5 + SZ_16K - 1,
1072 .flags = IORESOURCE_MEM,
1075 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_US5,
1076 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_US5,
1077 .flags = IORESOURCE_IRQ,
1081 static struct atmel_uart_data uart5_data = {
1084 .rts_gpio = -EINVAL,
1087 static u64 uart5_dmamask = DMA_BIT_MASK(32);
1089 static struct platform_device at91sam9260_uart5_device = {
1090 .name = "atmel_usart",
1093 .dma_mask = &uart5_dmamask,
1094 .coherent_dma_mask = DMA_BIT_MASK(32),
1095 .platform_data = &uart5_data,
1097 .resource = uart5_resources,
1098 .num_resources = ARRAY_SIZE(uart5_resources),
1101 static inline void configure_usart5_pins(void)
1103 at91_set_A_periph(AT91_PIN_PB12, 1); /* TXD5 */
1104 at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */
1107 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1109 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1111 struct platform_device *pdev;
1112 struct atmel_uart_data *pdata;
1116 pdev = &at91sam9260_dbgu_device;
1117 configure_dbgu_pins();
1119 case AT91SAM9260_ID_US0:
1120 pdev = &at91sam9260_uart0_device;
1121 configure_usart0_pins(pins);
1123 case AT91SAM9260_ID_US1:
1124 pdev = &at91sam9260_uart1_device;
1125 configure_usart1_pins(pins);
1127 case AT91SAM9260_ID_US2:
1128 pdev = &at91sam9260_uart2_device;
1129 configure_usart2_pins(pins);
1131 case AT91SAM9260_ID_US3:
1132 pdev = &at91sam9260_uart3_device;
1133 configure_usart3_pins(pins);
1135 case AT91SAM9260_ID_US4:
1136 pdev = &at91sam9260_uart4_device;
1137 configure_usart4_pins();
1139 case AT91SAM9260_ID_US5:
1140 pdev = &at91sam9260_uart5_device;
1141 configure_usart5_pins();
1146 pdata = pdev->dev.platform_data;
1147 pdata->num = portnr; /* update to mapped ID */
1149 if (portnr < ATMEL_MAX_UART)
1150 at91_uarts[portnr] = pdev;
1153 void __init at91_add_device_serial(void)
1157 for (i = 0; i < ATMEL_MAX_UART; i++) {
1159 platform_device_register(at91_uarts[i]);
1163 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1164 void __init at91_add_device_serial(void) {}
1167 /* --------------------------------------------------------------------
1169 * -------------------------------------------------------------------- */
1171 #if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
1172 defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
1174 static struct at91_cf_data cf0_data;
1176 static struct resource cf0_resources[] = {
1178 .start = AT91_CHIPSELECT_4,
1179 .end = AT91_CHIPSELECT_4 + SZ_256M - 1,
1180 .flags = IORESOURCE_MEM,
1184 static struct platform_device cf0_device = {
1187 .platform_data = &cf0_data,
1189 .resource = cf0_resources,
1190 .num_resources = ARRAY_SIZE(cf0_resources),
1193 static struct at91_cf_data cf1_data;
1195 static struct resource cf1_resources[] = {
1197 .start = AT91_CHIPSELECT_5,
1198 .end = AT91_CHIPSELECT_5 + SZ_256M - 1,
1199 .flags = IORESOURCE_MEM,
1203 static struct platform_device cf1_device = {
1206 .platform_data = &cf1_data,
1208 .resource = cf1_resources,
1209 .num_resources = ARRAY_SIZE(cf1_resources),
1212 void __init at91_add_device_cf(struct at91_cf_data *data)
1214 struct platform_device *pdev;
1220 csa = at91_matrix_read(AT91_MATRIX_EBICSA);
1222 switch (data->chipselect) {
1224 at91_set_multi_drive(AT91_PIN_PC8, 0);
1225 at91_set_A_periph(AT91_PIN_PC8, 0);
1226 csa |= AT91_MATRIX_CS4A_SMC_CF1;
1231 at91_set_multi_drive(AT91_PIN_PC9, 0);
1232 at91_set_A_periph(AT91_PIN_PC9, 0);
1233 csa |= AT91_MATRIX_CS5A_SMC_CF2;
1238 printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
1243 at91_matrix_write(AT91_MATRIX_EBICSA, csa);
1245 if (gpio_is_valid(data->rst_pin)) {
1246 at91_set_multi_drive(data->rst_pin, 0);
1247 at91_set_gpio_output(data->rst_pin, 1);
1250 if (gpio_is_valid(data->irq_pin)) {
1251 at91_set_gpio_input(data->irq_pin, 0);
1252 at91_set_deglitch(data->irq_pin, 1);
1255 if (gpio_is_valid(data->det_pin)) {
1256 at91_set_gpio_input(data->det_pin, 0);
1257 at91_set_deglitch(data->det_pin, 1);
1260 at91_set_B_periph(AT91_PIN_PC6, 0); /* CFCE1 */
1261 at91_set_B_periph(AT91_PIN_PC7, 0); /* CFCE2 */
1262 at91_set_A_periph(AT91_PIN_PC10, 0); /* CFRNW */
1263 at91_set_A_periph(AT91_PIN_PC15, 1); /* NWAIT */
1265 if (IS_ENABLED(CONFIG_PATA_AT91) && (data->flags & AT91_CF_TRUE_IDE))
1266 pdev->name = "pata_at91";
1268 pdev->name = "at91_cf";
1270 platform_device_register(pdev);
1274 void __init at91_add_device_cf(struct at91_cf_data * data) {}
1277 /* --------------------------------------------------------------------
1279 * -------------------------------------------------------------------- */
1281 #if IS_ENABLED(CONFIG_AT91_ADC)
1282 static struct at91_adc_data adc_data;
1284 static struct resource adc_resources[] = {
1286 .start = AT91SAM9260_BASE_ADC,
1287 .end = AT91SAM9260_BASE_ADC + SZ_16K - 1,
1288 .flags = IORESOURCE_MEM,
1291 .start = NR_IRQS_LEGACY + AT91SAM9260_ID_ADC,
1292 .end = NR_IRQS_LEGACY + AT91SAM9260_ID_ADC,
1293 .flags = IORESOURCE_IRQ,
1297 static struct platform_device at91_adc_device = {
1298 .name = "at91sam9260-adc",
1301 .platform_data = &adc_data,
1303 .resource = adc_resources,
1304 .num_resources = ARRAY_SIZE(adc_resources),
1307 static struct at91_adc_trigger at91_adc_triggers[] = {
1309 .name = "timer-counter-0",
1310 .value = AT91_ADC_TRGSEL_TC0 | AT91_ADC_TRGEN,
1313 .name = "timer-counter-1",
1314 .value = AT91_ADC_TRGSEL_TC1 | AT91_ADC_TRGEN,
1317 .name = "timer-counter-2",
1318 .value = AT91_ADC_TRGSEL_TC2 | AT91_ADC_TRGEN,
1322 .value = AT91_ADC_TRGSEL_EXTERNAL | AT91_ADC_TRGEN,
1323 .is_external = true,
1327 void __init at91_add_device_adc(struct at91_adc_data *data)
1332 if (test_bit(0, &data->channels_used))
1333 at91_set_A_periph(AT91_PIN_PC0, 0);
1334 if (test_bit(1, &data->channels_used))
1335 at91_set_A_periph(AT91_PIN_PC1, 0);
1336 if (test_bit(2, &data->channels_used))
1337 at91_set_A_periph(AT91_PIN_PC2, 0);
1338 if (test_bit(3, &data->channels_used))
1339 at91_set_A_periph(AT91_PIN_PC3, 0);
1341 if (data->use_external_triggers)
1342 at91_set_A_periph(AT91_PIN_PA22, 0);
1344 data->startup_time = 10;
1345 data->trigger_number = 4;
1346 data->trigger_list = at91_adc_triggers;
1349 platform_device_register(&at91_adc_device);
1352 void __init at91_add_device_adc(struct at91_adc_data *data) {}
1355 /* -------------------------------------------------------------------- */
1357 * These devices are always present and don't need any board-specific
1360 static int __init at91_add_standard_devices(void)
1362 if (of_have_populated_dt())
1365 at91_add_device_rtt();
1366 at91_add_device_watchdog();
1367 at91_add_device_tc();
1371 arch_initcall(at91_add_standard_devices);