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/at91sam926x_mc.h>
23 #include <asm/arch/at91sam9260_matrix.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_8M - 1,
294 .flags = IORESOURCE_MEM,
298 static struct platform_device at91sam9260_nand_device = {
302 .platform_data = &nand_data,
304 .resource = nand_resources,
305 .num_resources = ARRAY_SIZE(nand_resources),
308 void __init at91_add_device_nand(struct at91_nand_data *data)
310 unsigned long csa, mode;
315 csa = at91_sys_read(AT91_MATRIX_EBICSA);
316 at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
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));
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));
325 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
327 if (data->bus_width_16)
328 mode = AT91_SMC_DBW_16;
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));
334 if (data->enable_pin)
335 at91_set_gpio_output(data->enable_pin, 1);
339 at91_set_gpio_input(data->rdy_pin, 1);
341 /* card detect pin */
343 at91_set_gpio_input(data->det_pin, 1);
346 platform_device_register(&at91sam9260_nand_device);
349 void __init at91_add_device_nand(struct at91_nand_data *data) {}
353 /* --------------------------------------------------------------------
355 * -------------------------------------------------------------------- */
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).
363 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
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 */
373 static struct platform_device at91sam9260_twi_device = {
376 .dev.platform_data = &pdata,
379 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
381 at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */
382 at91_set_multi_drive(AT91_PIN_PA23, 1);
384 at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */
385 at91_set_multi_drive(AT91_PIN_PA24, 1);
387 i2c_register_board_info(0, devices, nr_devices);
388 platform_device_register(&at91sam9260_twi_device);
391 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
393 static struct resource twi_resources[] = {
395 .start = AT91SAM9260_BASE_TWI,
396 .end = AT91SAM9260_BASE_TWI + SZ_16K - 1,
397 .flags = IORESOURCE_MEM,
400 .start = AT91SAM9260_ID_TWI,
401 .end = AT91SAM9260_ID_TWI,
402 .flags = IORESOURCE_IRQ,
406 static struct platform_device at91sam9260_twi_device = {
409 .resource = twi_resources,
410 .num_resources = ARRAY_SIZE(twi_resources),
413 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
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);
419 at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */
420 at91_set_multi_drive(AT91_PIN_PA24, 1);
422 i2c_register_board_info(0, devices, nr_devices);
423 platform_device_register(&at91sam9260_twi_device);
426 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
430 /* --------------------------------------------------------------------
432 * -------------------------------------------------------------------- */
434 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
435 static u64 spi_dmamask = DMA_BIT_MASK(32);
437 static struct resource spi0_resources[] = {
439 .start = AT91SAM9260_BASE_SPI0,
440 .end = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
441 .flags = IORESOURCE_MEM,
444 .start = AT91SAM9260_ID_SPI0,
445 .end = AT91SAM9260_ID_SPI0,
446 .flags = IORESOURCE_IRQ,
450 static struct platform_device at91sam9260_spi0_device = {
454 .dma_mask = &spi_dmamask,
455 .coherent_dma_mask = DMA_BIT_MASK(32),
457 .resource = spi0_resources,
458 .num_resources = ARRAY_SIZE(spi0_resources),
461 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
463 static struct resource spi1_resources[] = {
465 .start = AT91SAM9260_BASE_SPI1,
466 .end = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
467 .flags = IORESOURCE_MEM,
470 .start = AT91SAM9260_ID_SPI1,
471 .end = AT91SAM9260_ID_SPI1,
472 .flags = IORESOURCE_IRQ,
476 static struct platform_device at91sam9260_spi1_device = {
480 .dma_mask = &spi_dmamask,
481 .coherent_dma_mask = DMA_BIT_MASK(32),
483 .resource = spi1_resources,
484 .num_resources = ARRAY_SIZE(spi1_resources),
487 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
489 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
492 unsigned long cs_pin;
493 short enable_spi0 = 0;
494 short enable_spi1 = 0;
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];
503 cs_pin = spi1_standard_cs[devices[i].chip_select];
505 if (devices[i].bus_num == 0)
510 /* enable chip-select pin */
511 at91_set_gpio_output(cs_pin, 1);
513 /* pass chip-select pin to driver */
514 devices[i].controller_data = (void *) cs_pin;
517 spi_register_board_info(devices, nr_devices);
519 /* Configure SPI bus(es) */
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 */
525 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
526 platform_device_register(&at91sam9260_spi0_device);
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 */
533 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
534 platform_device_register(&at91sam9260_spi1_device);
538 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
542 /* --------------------------------------------------------------------
544 * -------------------------------------------------------------------- */
546 static struct resource rtt_resources[] = {
548 .start = AT91_BASE_SYS + AT91_RTT,
549 .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
550 .flags = IORESOURCE_MEM,
554 static struct platform_device at91sam9260_rtt_device = {
557 .resource = rtt_resources,
558 .num_resources = ARRAY_SIZE(rtt_resources),
561 static void __init at91_add_device_rtt(void)
563 platform_device_register(&at91sam9260_rtt_device);
567 /* --------------------------------------------------------------------
569 * -------------------------------------------------------------------- */
571 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
572 static struct platform_device at91sam9260_wdt_device = {
578 static void __init at91_add_device_watchdog(void)
580 platform_device_register(&at91sam9260_wdt_device);
583 static void __init at91_add_device_watchdog(void) {}
587 /* --------------------------------------------------------------------
589 * -------------------------------------------------------------------- */
591 #if defined(CONFIG_LEDS)
595 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
597 /* Enable GPIO to access the LEDs */
598 at91_set_gpio_output(cpu_led, 1);
599 at91_set_gpio_output(timer_led, 1);
601 at91_leds_cpu = cpu_led;
602 at91_leds_timer = timer_led;
605 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
609 /* --------------------------------------------------------------------
611 * -------------------------------------------------------------------- */
612 #if defined(CONFIG_SERIAL_ATMEL)
613 static struct resource dbgu_resources[] = {
615 .start = AT91_VA_BASE_SYS + AT91_DBGU,
616 .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
617 .flags = IORESOURCE_MEM,
620 .start = AT91_ID_SYS,
622 .flags = IORESOURCE_IRQ,
626 static struct atmel_uart_data dbgu_data = {
628 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
629 .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
632 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
634 static struct platform_device at91sam9260_dbgu_device = {
635 .name = "atmel_usart",
638 .dma_mask = &dbgu_dmamask,
639 .coherent_dma_mask = DMA_BIT_MASK(32),
640 .platform_data = &dbgu_data,
642 .resource = dbgu_resources,
643 .num_resources = ARRAY_SIZE(dbgu_resources),
646 static inline void configure_dbgu_pins(void)
648 at91_set_A_periph(AT91_PIN_PB14, 0); /* DRXD */
649 at91_set_A_periph(AT91_PIN_PB15, 1); /* DTXD */
652 static struct resource uart0_resources[] = {
654 .start = AT91SAM9260_BASE_US0,
655 .end = AT91SAM9260_BASE_US0 + SZ_16K - 1,
656 .flags = IORESOURCE_MEM,
659 .start = AT91SAM9260_ID_US0,
660 .end = AT91SAM9260_ID_US0,
661 .flags = IORESOURCE_IRQ,
665 static struct atmel_uart_data uart0_data = {
670 static u64 uart0_dmamask = DMA_BIT_MASK(32);
672 static struct platform_device at91sam9260_uart0_device = {
673 .name = "atmel_usart",
676 .dma_mask = &uart0_dmamask,
677 .coherent_dma_mask = DMA_BIT_MASK(32),
678 .platform_data = &uart0_data,
680 .resource = uart0_resources,
681 .num_resources = ARRAY_SIZE(uart0_resources),
684 static inline void configure_usart0_pins(void)
686 at91_set_A_periph(AT91_PIN_PB4, 1); /* TXD0 */
687 at91_set_A_periph(AT91_PIN_PB5, 0); /* RXD0 */
688 at91_set_A_periph(AT91_PIN_PB26, 0); /* RTS0 */
689 at91_set_A_periph(AT91_PIN_PB27, 0); /* CTS0 */
690 at91_set_A_periph(AT91_PIN_PB24, 0); /* DTR0 */
691 at91_set_A_periph(AT91_PIN_PB22, 0); /* DSR0 */
692 at91_set_A_periph(AT91_PIN_PB23, 0); /* DCD0 */
693 at91_set_A_periph(AT91_PIN_PB25, 0); /* RI0 */
696 static struct resource uart1_resources[] = {
698 .start = AT91SAM9260_BASE_US1,
699 .end = AT91SAM9260_BASE_US1 + SZ_16K - 1,
700 .flags = IORESOURCE_MEM,
703 .start = AT91SAM9260_ID_US1,
704 .end = AT91SAM9260_ID_US1,
705 .flags = IORESOURCE_IRQ,
709 static struct atmel_uart_data uart1_data = {
714 static u64 uart1_dmamask = DMA_BIT_MASK(32);
716 static struct platform_device at91sam9260_uart1_device = {
717 .name = "atmel_usart",
720 .dma_mask = &uart1_dmamask,
721 .coherent_dma_mask = DMA_BIT_MASK(32),
722 .platform_data = &uart1_data,
724 .resource = uart1_resources,
725 .num_resources = ARRAY_SIZE(uart1_resources),
728 static inline void configure_usart1_pins(void)
730 at91_set_A_periph(AT91_PIN_PB6, 1); /* TXD1 */
731 at91_set_A_periph(AT91_PIN_PB7, 0); /* RXD1 */
732 at91_set_A_periph(AT91_PIN_PB28, 0); /* RTS1 */
733 at91_set_A_periph(AT91_PIN_PB29, 0); /* CTS1 */
736 static struct resource uart2_resources[] = {
738 .start = AT91SAM9260_BASE_US2,
739 .end = AT91SAM9260_BASE_US2 + SZ_16K - 1,
740 .flags = IORESOURCE_MEM,
743 .start = AT91SAM9260_ID_US2,
744 .end = AT91SAM9260_ID_US2,
745 .flags = IORESOURCE_IRQ,
749 static struct atmel_uart_data uart2_data = {
754 static u64 uart2_dmamask = DMA_BIT_MASK(32);
756 static struct platform_device at91sam9260_uart2_device = {
757 .name = "atmel_usart",
760 .dma_mask = &uart2_dmamask,
761 .coherent_dma_mask = DMA_BIT_MASK(32),
762 .platform_data = &uart2_data,
764 .resource = uart2_resources,
765 .num_resources = ARRAY_SIZE(uart2_resources),
768 static inline void configure_usart2_pins(void)
770 at91_set_A_periph(AT91_PIN_PB8, 1); /* TXD2 */
771 at91_set_A_periph(AT91_PIN_PB9, 0); /* RXD2 */
774 static struct resource uart3_resources[] = {
776 .start = AT91SAM9260_BASE_US3,
777 .end = AT91SAM9260_BASE_US3 + SZ_16K - 1,
778 .flags = IORESOURCE_MEM,
781 .start = AT91SAM9260_ID_US3,
782 .end = AT91SAM9260_ID_US3,
783 .flags = IORESOURCE_IRQ,
787 static struct atmel_uart_data uart3_data = {
792 static u64 uart3_dmamask = DMA_BIT_MASK(32);
794 static struct platform_device at91sam9260_uart3_device = {
795 .name = "atmel_usart",
798 .dma_mask = &uart3_dmamask,
799 .coherent_dma_mask = DMA_BIT_MASK(32),
800 .platform_data = &uart3_data,
802 .resource = uart3_resources,
803 .num_resources = ARRAY_SIZE(uart3_resources),
806 static inline void configure_usart3_pins(void)
808 at91_set_A_periph(AT91_PIN_PB10, 1); /* TXD3 */
809 at91_set_A_periph(AT91_PIN_PB11, 0); /* RXD3 */
812 static struct resource uart4_resources[] = {
814 .start = AT91SAM9260_BASE_US4,
815 .end = AT91SAM9260_BASE_US4 + SZ_16K - 1,
816 .flags = IORESOURCE_MEM,
819 .start = AT91SAM9260_ID_US4,
820 .end = AT91SAM9260_ID_US4,
821 .flags = IORESOURCE_IRQ,
825 static struct atmel_uart_data uart4_data = {
830 static u64 uart4_dmamask = DMA_BIT_MASK(32);
832 static struct platform_device at91sam9260_uart4_device = {
833 .name = "atmel_usart",
836 .dma_mask = &uart4_dmamask,
837 .coherent_dma_mask = DMA_BIT_MASK(32),
838 .platform_data = &uart4_data,
840 .resource = uart4_resources,
841 .num_resources = ARRAY_SIZE(uart4_resources),
844 static inline void configure_usart4_pins(void)
846 at91_set_B_periph(AT91_PIN_PA31, 1); /* TXD4 */
847 at91_set_B_periph(AT91_PIN_PA30, 0); /* RXD4 */
850 static struct resource uart5_resources[] = {
852 .start = AT91SAM9260_BASE_US5,
853 .end = AT91SAM9260_BASE_US5 + SZ_16K - 1,
854 .flags = IORESOURCE_MEM,
857 .start = AT91SAM9260_ID_US5,
858 .end = AT91SAM9260_ID_US5,
859 .flags = IORESOURCE_IRQ,
863 static struct atmel_uart_data uart5_data = {
868 static u64 uart5_dmamask = DMA_BIT_MASK(32);
870 static struct platform_device at91sam9260_uart5_device = {
871 .name = "atmel_usart",
874 .dma_mask = &uart5_dmamask,
875 .coherent_dma_mask = DMA_BIT_MASK(32),
876 .platform_data = &uart5_data,
878 .resource = uart5_resources,
879 .num_resources = ARRAY_SIZE(uart5_resources),
882 static inline void configure_usart5_pins(void)
884 at91_set_A_periph(AT91_PIN_PB12, 1); /* TXD5 */
885 at91_set_A_periph(AT91_PIN_PB13, 0); /* RXD5 */
888 static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
889 struct platform_device *atmel_default_console_device; /* the serial console device */
891 void __init at91_init_serial(struct at91_uart_config *config)
895 /* Fill in list of supported UARTs */
896 for (i = 0; i < config->nr_tty; i++) {
897 switch (config->tty_map[i]) {
899 configure_usart0_pins();
900 at91_uarts[i] = &at91sam9260_uart0_device;
901 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
904 configure_usart1_pins();
905 at91_uarts[i] = &at91sam9260_uart1_device;
906 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
909 configure_usart2_pins();
910 at91_uarts[i] = &at91sam9260_uart2_device;
911 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
914 configure_usart3_pins();
915 at91_uarts[i] = &at91sam9260_uart3_device;
916 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
919 configure_usart4_pins();
920 at91_uarts[i] = &at91sam9260_uart4_device;
921 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
924 configure_usart5_pins();
925 at91_uarts[i] = &at91sam9260_uart5_device;
926 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
929 configure_dbgu_pins();
930 at91_uarts[i] = &at91sam9260_dbgu_device;
931 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
936 at91_uarts[i]->id = i; /* update ID number to mapped ID */
939 /* Set serial console device */
940 if (config->console_tty < ATMEL_MAX_UART)
941 atmel_default_console_device = at91_uarts[config->console_tty];
942 if (!atmel_default_console_device)
943 printk(KERN_INFO "AT91: No default serial console defined.\n");
946 void __init at91_add_device_serial(void)
950 for (i = 0; i < ATMEL_MAX_UART; i++) {
952 platform_device_register(at91_uarts[i]);
956 void __init at91_init_serial(struct at91_uart_config *config) {}
957 void __init at91_add_device_serial(void) {}
961 /* -------------------------------------------------------------------- */
963 * These devices are always present and don't need any board-specific
966 static int __init at91_add_standard_devices(void)
968 at91_add_device_rtt();
969 at91_add_device_watchdog();
973 arch_initcall(at91_add_standard_devices);