2 * arch/arm/mach-at91/at91cap9_devices.c
4 * Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
5 * Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
6 * Copyright (C) 2007 Atmel Corporation.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #include <asm/mach/arch.h>
15 #include <asm/mach/map.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/platform_device.h>
19 #include <linux/mtd/physmap.h>
21 #include <video/atmel_lcdc.h>
23 #include <asm/arch/board.h>
24 #include <asm/arch/gpio.h>
25 #include <asm/arch/at91cap9.h>
26 #include <asm/arch/at91cap9_matrix.h>
27 #include <asm/arch/at91sam9_smc.h>
32 /* --------------------------------------------------------------------
34 * -------------------------------------------------------------------- */
36 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
37 static u64 ohci_dmamask = DMA_BIT_MASK(32);
38 static struct at91_usbh_data usbh_data;
40 static struct resource usbh_resources[] = {
42 .start = AT91CAP9_UHP_BASE,
43 .end = AT91CAP9_UHP_BASE + SZ_1M - 1,
44 .flags = IORESOURCE_MEM,
47 .start = AT91CAP9_ID_UHP,
48 .end = AT91CAP9_ID_UHP,
49 .flags = IORESOURCE_IRQ,
53 static struct platform_device at91_usbh_device = {
57 .dma_mask = &ohci_dmamask,
58 .coherent_dma_mask = DMA_BIT_MASK(32),
59 .platform_data = &usbh_data,
61 .resource = usbh_resources,
62 .num_resources = ARRAY_SIZE(usbh_resources),
65 void __init at91_add_device_usbh(struct at91_usbh_data *data)
72 /* Enable VBus control for UHP ports */
73 for (i = 0; i < data->ports; i++) {
74 if (data->vbus_pin[i])
75 at91_set_gpio_output(data->vbus_pin[i], 0);
79 platform_device_register(&at91_usbh_device);
82 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
86 /* --------------------------------------------------------------------
88 * -------------------------------------------------------------------- */
90 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
91 static u64 eth_dmamask = DMA_BIT_MASK(32);
92 static struct at91_eth_data eth_data;
94 static struct resource eth_resources[] = {
96 .start = AT91CAP9_BASE_EMAC,
97 .end = AT91CAP9_BASE_EMAC + SZ_16K - 1,
98 .flags = IORESOURCE_MEM,
101 .start = AT91CAP9_ID_EMAC,
102 .end = AT91CAP9_ID_EMAC,
103 .flags = IORESOURCE_IRQ,
107 static struct platform_device at91cap9_eth_device = {
111 .dma_mask = ð_dmamask,
112 .coherent_dma_mask = DMA_BIT_MASK(32),
113 .platform_data = ð_data,
115 .resource = eth_resources,
116 .num_resources = ARRAY_SIZE(eth_resources),
119 void __init at91_add_device_eth(struct at91_eth_data *data)
124 if (data->phy_irq_pin) {
125 at91_set_gpio_input(data->phy_irq_pin, 0);
126 at91_set_deglitch(data->phy_irq_pin, 1);
129 /* Pins used for MII and RMII */
130 at91_set_A_periph(AT91_PIN_PB21, 0); /* ETXCK_EREFCK */
131 at91_set_A_periph(AT91_PIN_PB22, 0); /* ERXDV */
132 at91_set_A_periph(AT91_PIN_PB25, 0); /* ERX0 */
133 at91_set_A_periph(AT91_PIN_PB26, 0); /* ERX1 */
134 at91_set_A_periph(AT91_PIN_PB27, 0); /* ERXER */
135 at91_set_A_periph(AT91_PIN_PB28, 0); /* ETXEN */
136 at91_set_A_periph(AT91_PIN_PB23, 0); /* ETX0 */
137 at91_set_A_periph(AT91_PIN_PB24, 0); /* ETX1 */
138 at91_set_A_periph(AT91_PIN_PB30, 0); /* EMDIO */
139 at91_set_A_periph(AT91_PIN_PB29, 0); /* EMDC */
141 if (!data->is_rmii) {
142 at91_set_B_periph(AT91_PIN_PC25, 0); /* ECRS */
143 at91_set_B_periph(AT91_PIN_PC26, 0); /* ECOL */
144 at91_set_B_periph(AT91_PIN_PC22, 0); /* ERX2 */
145 at91_set_B_periph(AT91_PIN_PC23, 0); /* ERX3 */
146 at91_set_B_periph(AT91_PIN_PC27, 0); /* ERXCK */
147 at91_set_B_periph(AT91_PIN_PC20, 0); /* ETX2 */
148 at91_set_B_periph(AT91_PIN_PC21, 0); /* ETX3 */
149 at91_set_B_periph(AT91_PIN_PC24, 0); /* ETXER */
153 platform_device_register(&at91cap9_eth_device);
156 void __init at91_add_device_eth(struct at91_eth_data *data) {}
160 /* --------------------------------------------------------------------
162 * -------------------------------------------------------------------- */
164 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
165 static u64 mmc_dmamask = DMA_BIT_MASK(32);
166 static struct at91_mmc_data mmc0_data, mmc1_data;
168 static struct resource mmc0_resources[] = {
170 .start = AT91CAP9_BASE_MCI0,
171 .end = AT91CAP9_BASE_MCI0 + SZ_16K - 1,
172 .flags = IORESOURCE_MEM,
175 .start = AT91CAP9_ID_MCI0,
176 .end = AT91CAP9_ID_MCI0,
177 .flags = IORESOURCE_IRQ,
181 static struct platform_device at91cap9_mmc0_device = {
185 .dma_mask = &mmc_dmamask,
186 .coherent_dma_mask = DMA_BIT_MASK(32),
187 .platform_data = &mmc0_data,
189 .resource = mmc0_resources,
190 .num_resources = ARRAY_SIZE(mmc0_resources),
193 static struct resource mmc1_resources[] = {
195 .start = AT91CAP9_BASE_MCI1,
196 .end = AT91CAP9_BASE_MCI1 + SZ_16K - 1,
197 .flags = IORESOURCE_MEM,
200 .start = AT91CAP9_ID_MCI1,
201 .end = AT91CAP9_ID_MCI1,
202 .flags = IORESOURCE_IRQ,
206 static struct platform_device at91cap9_mmc1_device = {
210 .dma_mask = &mmc_dmamask,
211 .coherent_dma_mask = DMA_BIT_MASK(32),
212 .platform_data = &mmc1_data,
214 .resource = mmc1_resources,
215 .num_resources = ARRAY_SIZE(mmc1_resources),
218 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
225 at91_set_gpio_input(data->det_pin, 1);
226 at91_set_deglitch(data->det_pin, 1);
229 at91_set_gpio_input(data->wp_pin, 1);
231 at91_set_gpio_output(data->vcc_pin, 0);
233 if (mmc_id == 0) { /* MCI0 */
235 at91_set_A_periph(AT91_PIN_PA2, 0);
238 at91_set_A_periph(AT91_PIN_PA1, 1);
240 /* DAT0, maybe DAT1..DAT3 */
241 at91_set_A_periph(AT91_PIN_PA0, 1);
243 at91_set_A_periph(AT91_PIN_PA3, 1);
244 at91_set_A_periph(AT91_PIN_PA4, 1);
245 at91_set_A_periph(AT91_PIN_PA5, 1);
249 at91_clock_associate("mci0_clk", &at91cap9_mmc1_device.dev, "mci_clk");
250 platform_device_register(&at91cap9_mmc0_device);
253 at91_set_A_periph(AT91_PIN_PA16, 0);
256 at91_set_A_periph(AT91_PIN_PA17, 1);
258 /* DAT0, maybe DAT1..DAT3 */
259 at91_set_A_periph(AT91_PIN_PA18, 1);
261 at91_set_A_periph(AT91_PIN_PA19, 1);
262 at91_set_A_periph(AT91_PIN_PA20, 1);
263 at91_set_A_periph(AT91_PIN_PA21, 1);
267 at91_clock_associate("mci1_clk", &at91cap9_mmc1_device.dev, "mci_clk");
268 platform_device_register(&at91cap9_mmc1_device);
272 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
276 /* --------------------------------------------------------------------
278 * -------------------------------------------------------------------- */
280 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
281 static struct at91_nand_data nand_data;
283 #define NAND_BASE AT91_CHIPSELECT_3
285 static struct resource nand_resources[] = {
288 .end = NAND_BASE + SZ_256M - 1,
289 .flags = IORESOURCE_MEM,
292 .start = AT91_BASE_SYS + AT91_ECC,
293 .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
294 .flags = IORESOURCE_MEM,
298 static struct platform_device at91cap9_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_EBI_CS3A_SMC_SMARTMEDIA | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
318 /* set the bus interface characteristics */
319 at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(1)
320 | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(1));
322 at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(6)
323 | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(6));
325 at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(8) | AT91_SMC_NRDCYCLE_(8));
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_(1));
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(&at91cap9_nand_device);
349 void __init at91_add_device_nand(struct at91_nand_data *data) {}
352 /* --------------------------------------------------------------------
354 * -------------------------------------------------------------------- */
357 * Prefer the GPIO code since the TWI controller isn't robust
358 * (gets overruns and underruns under load) and can only issue
359 * repeated STARTs in one scenario (the driver doesn't yet handle them).
361 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
363 static struct i2c_gpio_platform_data pdata = {
364 .sda_pin = AT91_PIN_PB4,
365 .sda_is_open_drain = 1,
366 .scl_pin = AT91_PIN_PB5,
367 .scl_is_open_drain = 1,
368 .udelay = 2, /* ~100 kHz */
371 static struct platform_device at91cap9_twi_device = {
374 .dev.platform_data = &pdata,
377 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
379 at91_set_GPIO_periph(AT91_PIN_PB4, 1); /* TWD (SDA) */
380 at91_set_multi_drive(AT91_PIN_PB4, 1);
382 at91_set_GPIO_periph(AT91_PIN_PB5, 1); /* TWCK (SCL) */
383 at91_set_multi_drive(AT91_PIN_PB5, 1);
385 i2c_register_board_info(0, devices, nr_devices);
386 platform_device_register(&at91cap9_twi_device);
389 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
391 static struct resource twi_resources[] = {
393 .start = AT91CAP9_BASE_TWI,
394 .end = AT91CAP9_BASE_TWI + SZ_16K - 1,
395 .flags = IORESOURCE_MEM,
398 .start = AT91CAP9_ID_TWI,
399 .end = AT91CAP9_ID_TWI,
400 .flags = IORESOURCE_IRQ,
404 static struct platform_device at91cap9_twi_device = {
407 .resource = twi_resources,
408 .num_resources = ARRAY_SIZE(twi_resources),
411 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
413 /* pins used for TWI interface */
414 at91_set_B_periph(AT91_PIN_PB4, 0); /* TWD */
415 at91_set_multi_drive(AT91_PIN_PB4, 1);
417 at91_set_B_periph(AT91_PIN_PB5, 0); /* TWCK */
418 at91_set_multi_drive(AT91_PIN_PB5, 1);
420 i2c_register_board_info(0, devices, nr_devices);
421 platform_device_register(&at91cap9_twi_device);
424 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
427 /* --------------------------------------------------------------------
429 * -------------------------------------------------------------------- */
431 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
432 static u64 spi_dmamask = DMA_BIT_MASK(32);
434 static struct resource spi0_resources[] = {
436 .start = AT91CAP9_BASE_SPI0,
437 .end = AT91CAP9_BASE_SPI0 + SZ_16K - 1,
438 .flags = IORESOURCE_MEM,
441 .start = AT91CAP9_ID_SPI0,
442 .end = AT91CAP9_ID_SPI0,
443 .flags = IORESOURCE_IRQ,
447 static struct platform_device at91cap9_spi0_device = {
451 .dma_mask = &spi_dmamask,
452 .coherent_dma_mask = DMA_BIT_MASK(32),
454 .resource = spi0_resources,
455 .num_resources = ARRAY_SIZE(spi0_resources),
458 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PD0, AT91_PIN_PD1 };
460 static struct resource spi1_resources[] = {
462 .start = AT91CAP9_BASE_SPI1,
463 .end = AT91CAP9_BASE_SPI1 + SZ_16K - 1,
464 .flags = IORESOURCE_MEM,
467 .start = AT91CAP9_ID_SPI1,
468 .end = AT91CAP9_ID_SPI1,
469 .flags = IORESOURCE_IRQ,
473 static struct platform_device at91cap9_spi1_device = {
477 .dma_mask = &spi_dmamask,
478 .coherent_dma_mask = DMA_BIT_MASK(32),
480 .resource = spi1_resources,
481 .num_resources = ARRAY_SIZE(spi1_resources),
484 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
486 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
489 unsigned long cs_pin;
490 short enable_spi0 = 0;
491 short enable_spi1 = 0;
493 /* Choose SPI chip-selects */
494 for (i = 0; i < nr_devices; i++) {
495 if (devices[i].controller_data)
496 cs_pin = (unsigned long) devices[i].controller_data;
497 else if (devices[i].bus_num == 0)
498 cs_pin = spi0_standard_cs[devices[i].chip_select];
500 cs_pin = spi1_standard_cs[devices[i].chip_select];
502 if (devices[i].bus_num == 0)
507 /* enable chip-select pin */
508 at91_set_gpio_output(cs_pin, 1);
510 /* pass chip-select pin to driver */
511 devices[i].controller_data = (void *) cs_pin;
514 spi_register_board_info(devices, nr_devices);
516 /* Configure SPI bus(es) */
518 at91_set_B_periph(AT91_PIN_PA0, 0); /* SPI0_MISO */
519 at91_set_B_periph(AT91_PIN_PA1, 0); /* SPI0_MOSI */
520 at91_set_B_periph(AT91_PIN_PA2, 0); /* SPI0_SPCK */
522 at91_clock_associate("spi0_clk", &at91cap9_spi0_device.dev, "spi_clk");
523 platform_device_register(&at91cap9_spi0_device);
526 at91_set_A_periph(AT91_PIN_PB12, 0); /* SPI1_MISO */
527 at91_set_A_periph(AT91_PIN_PB13, 0); /* SPI1_MOSI */
528 at91_set_A_periph(AT91_PIN_PB14, 0); /* SPI1_SPCK */
530 at91_clock_associate("spi1_clk", &at91cap9_spi1_device.dev, "spi_clk");
531 platform_device_register(&at91cap9_spi1_device);
535 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
539 /* --------------------------------------------------------------------
541 * -------------------------------------------------------------------- */
543 static struct resource rtt_resources[] = {
545 .start = AT91_BASE_SYS + AT91_RTT,
546 .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
547 .flags = IORESOURCE_MEM,
551 static struct platform_device at91cap9_rtt_device = {
554 .resource = rtt_resources,
555 .num_resources = ARRAY_SIZE(rtt_resources),
558 static void __init at91_add_device_rtt(void)
560 platform_device_register(&at91cap9_rtt_device);
564 /* --------------------------------------------------------------------
566 * -------------------------------------------------------------------- */
568 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
569 static struct platform_device at91cap9_wdt_device = {
575 static void __init at91_add_device_watchdog(void)
577 platform_device_register(&at91cap9_wdt_device);
580 static void __init at91_add_device_watchdog(void) {}
584 /* --------------------------------------------------------------------
586 * -------------------------------------------------------------------- */
588 #if defined(CONFIG_SND_AT91_AC97) || defined(CONFIG_SND_AT91_AC97_MODULE)
589 static u64 ac97_dmamask = DMA_BIT_MASK(32);
590 static struct atmel_ac97_data ac97_data;
592 static struct resource ac97_resources[] = {
594 .start = AT91CAP9_BASE_AC97C,
595 .end = AT91CAP9_BASE_AC97C + SZ_16K - 1,
596 .flags = IORESOURCE_MEM,
599 .start = AT91CAP9_ID_AC97C,
600 .end = AT91CAP9_ID_AC97C,
601 .flags = IORESOURCE_IRQ,
605 static struct platform_device at91cap9_ac97_device = {
609 .dma_mask = &ac97_dmamask,
610 .coherent_dma_mask = DMA_BIT_MASK(32),
611 .platform_data = &ac97_data,
613 .resource = ac97_resources,
614 .num_resources = ARRAY_SIZE(ac97_resources),
617 void __init at91_add_device_ac97(struct atmel_ac97_data *data)
622 at91_set_A_periph(AT91_PIN_PA6, 0); /* AC97FS */
623 at91_set_A_periph(AT91_PIN_PA7, 0); /* AC97CK */
624 at91_set_A_periph(AT91_PIN_PA8, 0); /* AC97TX */
625 at91_set_A_periph(AT91_PIN_PA9, 0); /* AC97RX */
629 at91_set_gpio_output(data->reset_pin, 0);
632 platform_device_register(&at91cap9_ac97_device);
635 void __init at91_add_device_ac97(struct atmel_ac97_data *data) {}
639 /* --------------------------------------------------------------------
641 * -------------------------------------------------------------------- */
643 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
644 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
645 static struct atmel_lcdfb_info lcdc_data;
647 static struct resource lcdc_resources[] = {
649 .start = AT91CAP9_LCDC_BASE,
650 .end = AT91CAP9_LCDC_BASE + SZ_4K - 1,
651 .flags = IORESOURCE_MEM,
654 .start = AT91CAP9_ID_LCDC,
655 .end = AT91CAP9_ID_LCDC,
656 .flags = IORESOURCE_IRQ,
660 static struct platform_device at91_lcdc_device = {
661 .name = "atmel_lcdfb",
664 .dma_mask = &lcdc_dmamask,
665 .coherent_dma_mask = DMA_BIT_MASK(32),
666 .platform_data = &lcdc_data,
668 .resource = lcdc_resources,
669 .num_resources = ARRAY_SIZE(lcdc_resources),
672 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
677 at91_set_A_periph(AT91_PIN_PC1, 0); /* LCDHSYNC */
678 at91_set_A_periph(AT91_PIN_PC2, 0); /* LCDDOTCK */
679 at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDDEN */
680 at91_set_B_periph(AT91_PIN_PB9, 0); /* LCDCC */
681 at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDD2 */
682 at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDD3 */
683 at91_set_A_periph(AT91_PIN_PC8, 0); /* LCDD4 */
684 at91_set_A_periph(AT91_PIN_PC9, 0); /* LCDD5 */
685 at91_set_A_periph(AT91_PIN_PC10, 0); /* LCDD6 */
686 at91_set_A_periph(AT91_PIN_PC11, 0); /* LCDD7 */
687 at91_set_A_periph(AT91_PIN_PC14, 0); /* LCDD10 */
688 at91_set_A_periph(AT91_PIN_PC15, 0); /* LCDD11 */
689 at91_set_A_periph(AT91_PIN_PC16, 0); /* LCDD12 */
690 at91_set_A_periph(AT91_PIN_PC17, 0); /* LCDD13 */
691 at91_set_A_periph(AT91_PIN_PC18, 0); /* LCDD14 */
692 at91_set_A_periph(AT91_PIN_PC19, 0); /* LCDD15 */
693 at91_set_A_periph(AT91_PIN_PC22, 0); /* LCDD18 */
694 at91_set_A_periph(AT91_PIN_PC23, 0); /* LCDD19 */
695 at91_set_A_periph(AT91_PIN_PC24, 0); /* LCDD20 */
696 at91_set_A_periph(AT91_PIN_PC25, 0); /* LCDD21 */
697 at91_set_A_periph(AT91_PIN_PC26, 0); /* LCDD22 */
698 at91_set_A_periph(AT91_PIN_PC27, 0); /* LCDD23 */
701 platform_device_register(&at91_lcdc_device);
704 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
708 /* --------------------------------------------------------------------
709 * SSC -- Synchronous Serial Controller
710 * -------------------------------------------------------------------- */
712 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
713 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
715 static struct resource ssc0_resources[] = {
717 .start = AT91CAP9_BASE_SSC0,
718 .end = AT91CAP9_BASE_SSC0 + SZ_16K - 1,
719 .flags = IORESOURCE_MEM,
722 .start = AT91CAP9_ID_SSC0,
723 .end = AT91CAP9_ID_SSC0,
724 .flags = IORESOURCE_IRQ,
728 static struct platform_device at91cap9_ssc0_device = {
732 .dma_mask = &ssc0_dmamask,
733 .coherent_dma_mask = DMA_BIT_MASK(32),
735 .resource = ssc0_resources,
736 .num_resources = ARRAY_SIZE(ssc0_resources),
739 static inline void configure_ssc0_pins(unsigned pins)
741 if (pins & ATMEL_SSC_TF)
742 at91_set_A_periph(AT91_PIN_PB0, 1);
743 if (pins & ATMEL_SSC_TK)
744 at91_set_A_periph(AT91_PIN_PB1, 1);
745 if (pins & ATMEL_SSC_TD)
746 at91_set_A_periph(AT91_PIN_PB2, 1);
747 if (pins & ATMEL_SSC_RD)
748 at91_set_A_periph(AT91_PIN_PB3, 1);
749 if (pins & ATMEL_SSC_RK)
750 at91_set_A_periph(AT91_PIN_PB4, 1);
751 if (pins & ATMEL_SSC_RF)
752 at91_set_A_periph(AT91_PIN_PB5, 1);
755 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
757 static struct resource ssc1_resources[] = {
759 .start = AT91CAP9_BASE_SSC1,
760 .end = AT91CAP9_BASE_SSC1 + SZ_16K - 1,
761 .flags = IORESOURCE_MEM,
764 .start = AT91CAP9_ID_SSC1,
765 .end = AT91CAP9_ID_SSC1,
766 .flags = IORESOURCE_IRQ,
770 static struct platform_device at91cap9_ssc1_device = {
774 .dma_mask = &ssc1_dmamask,
775 .coherent_dma_mask = DMA_BIT_MASK(32),
777 .resource = ssc1_resources,
778 .num_resources = ARRAY_SIZE(ssc1_resources),
781 static inline void configure_ssc1_pins(unsigned pins)
783 if (pins & ATMEL_SSC_TF)
784 at91_set_A_periph(AT91_PIN_PB6, 1);
785 if (pins & ATMEL_SSC_TK)
786 at91_set_A_periph(AT91_PIN_PB7, 1);
787 if (pins & ATMEL_SSC_TD)
788 at91_set_A_periph(AT91_PIN_PB8, 1);
789 if (pins & ATMEL_SSC_RD)
790 at91_set_A_periph(AT91_PIN_PB9, 1);
791 if (pins & ATMEL_SSC_RK)
792 at91_set_A_periph(AT91_PIN_PB10, 1);
793 if (pins & ATMEL_SSC_RF)
794 at91_set_A_periph(AT91_PIN_PB11, 1);
798 * SSC controllers are accessed through library code, instead of any
799 * kind of all-singing/all-dancing driver. For example one could be
800 * used by a particular I2S audio codec's driver, while another one
801 * on the same system might be used by a custom data capture driver.
803 void __init at91_add_device_ssc(unsigned id, unsigned pins)
805 struct platform_device *pdev;
808 * NOTE: caller is responsible for passing information matching
809 * "pins" to whatever will be using each particular controller.
812 case AT91CAP9_ID_SSC0:
813 pdev = &at91cap9_ssc0_device;
814 configure_ssc0_pins(pins);
815 at91_clock_associate("ssc0_clk", &pdev->dev, "ssc");
817 case AT91CAP9_ID_SSC1:
818 pdev = &at91cap9_ssc1_device;
819 configure_ssc1_pins(pins);
820 at91_clock_associate("ssc1_clk", &pdev->dev, "ssc");
826 platform_device_register(pdev);
830 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
834 /* --------------------------------------------------------------------
836 * -------------------------------------------------------------------- */
838 #if defined(CONFIG_SERIAL_ATMEL)
839 static struct resource dbgu_resources[] = {
841 .start = AT91_VA_BASE_SYS + AT91_DBGU,
842 .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
843 .flags = IORESOURCE_MEM,
846 .start = AT91_ID_SYS,
848 .flags = IORESOURCE_IRQ,
852 static struct atmel_uart_data dbgu_data = {
854 .use_dma_rx = 0, /* DBGU not capable of receive DMA */
855 .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
858 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
860 static struct platform_device at91cap9_dbgu_device = {
861 .name = "atmel_usart",
864 .dma_mask = &dbgu_dmamask,
865 .coherent_dma_mask = DMA_BIT_MASK(32),
866 .platform_data = &dbgu_data,
868 .resource = dbgu_resources,
869 .num_resources = ARRAY_SIZE(dbgu_resources),
872 static inline void configure_dbgu_pins(void)
874 at91_set_A_periph(AT91_PIN_PC30, 0); /* DRXD */
875 at91_set_A_periph(AT91_PIN_PC31, 1); /* DTXD */
878 static struct resource uart0_resources[] = {
880 .start = AT91CAP9_BASE_US0,
881 .end = AT91CAP9_BASE_US0 + SZ_16K - 1,
882 .flags = IORESOURCE_MEM,
885 .start = AT91CAP9_ID_US0,
886 .end = AT91CAP9_ID_US0,
887 .flags = IORESOURCE_IRQ,
891 static struct atmel_uart_data uart0_data = {
896 static u64 uart0_dmamask = DMA_BIT_MASK(32);
898 static struct platform_device at91cap9_uart0_device = {
899 .name = "atmel_usart",
902 .dma_mask = &uart0_dmamask,
903 .coherent_dma_mask = DMA_BIT_MASK(32),
904 .platform_data = &uart0_data,
906 .resource = uart0_resources,
907 .num_resources = ARRAY_SIZE(uart0_resources),
910 static inline void configure_usart0_pins(unsigned pins)
912 at91_set_A_periph(AT91_PIN_PA22, 1); /* TXD0 */
913 at91_set_A_periph(AT91_PIN_PA23, 0); /* RXD0 */
915 if (pins & ATMEL_UART_RTS)
916 at91_set_A_periph(AT91_PIN_PA24, 0); /* RTS0 */
917 if (pins & ATMEL_UART_CTS)
918 at91_set_A_periph(AT91_PIN_PA25, 0); /* CTS0 */
921 static struct resource uart1_resources[] = {
923 .start = AT91CAP9_BASE_US1,
924 .end = AT91CAP9_BASE_US1 + SZ_16K - 1,
925 .flags = IORESOURCE_MEM,
928 .start = AT91CAP9_ID_US1,
929 .end = AT91CAP9_ID_US1,
930 .flags = IORESOURCE_IRQ,
934 static struct atmel_uart_data uart1_data = {
939 static u64 uart1_dmamask = DMA_BIT_MASK(32);
941 static struct platform_device at91cap9_uart1_device = {
942 .name = "atmel_usart",
945 .dma_mask = &uart1_dmamask,
946 .coherent_dma_mask = DMA_BIT_MASK(32),
947 .platform_data = &uart1_data,
949 .resource = uart1_resources,
950 .num_resources = ARRAY_SIZE(uart1_resources),
953 static inline void configure_usart1_pins(unsigned pins)
955 at91_set_A_periph(AT91_PIN_PD0, 1); /* TXD1 */
956 at91_set_A_periph(AT91_PIN_PD1, 0); /* RXD1 */
958 if (pins & ATMEL_UART_RTS)
959 at91_set_B_periph(AT91_PIN_PD7, 0); /* RTS1 */
960 if (pins & ATMEL_UART_CTS)
961 at91_set_B_periph(AT91_PIN_PD8, 0); /* CTS1 */
964 static struct resource uart2_resources[] = {
966 .start = AT91CAP9_BASE_US2,
967 .end = AT91CAP9_BASE_US2 + SZ_16K - 1,
968 .flags = IORESOURCE_MEM,
971 .start = AT91CAP9_ID_US2,
972 .end = AT91CAP9_ID_US2,
973 .flags = IORESOURCE_IRQ,
977 static struct atmel_uart_data uart2_data = {
982 static u64 uart2_dmamask = DMA_BIT_MASK(32);
984 static struct platform_device at91cap9_uart2_device = {
985 .name = "atmel_usart",
988 .dma_mask = &uart2_dmamask,
989 .coherent_dma_mask = DMA_BIT_MASK(32),
990 .platform_data = &uart2_data,
992 .resource = uart2_resources,
993 .num_resources = ARRAY_SIZE(uart2_resources),
996 static inline void configure_usart2_pins(unsigned pins)
998 at91_set_A_periph(AT91_PIN_PD2, 1); /* TXD2 */
999 at91_set_A_periph(AT91_PIN_PD3, 0); /* RXD2 */
1001 if (pins & ATMEL_UART_RTS)
1002 at91_set_B_periph(AT91_PIN_PD5, 0); /* RTS2 */
1003 if (pins & ATMEL_UART_CTS)
1004 at91_set_B_periph(AT91_PIN_PD6, 0); /* CTS2 */
1007 static struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */
1008 struct platform_device *atmel_default_console_device; /* the serial console device */
1010 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1012 struct platform_device *pdev;
1016 pdev = &at91cap9_dbgu_device;
1017 configure_dbgu_pins();
1018 at91_clock_associate("mck", &pdev->dev, "usart");
1020 case AT91CAP9_ID_US0:
1021 pdev = &at91cap9_uart0_device;
1022 configure_usart0_pins(pins);
1023 at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1025 case AT91CAP9_ID_US1:
1026 pdev = &at91cap9_uart1_device;
1027 configure_usart1_pins(pins);
1028 at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1030 case AT91CAP9_ID_US2:
1031 pdev = &at91cap9_uart2_device;
1032 configure_usart2_pins(pins);
1033 at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1038 pdev->id = portnr; /* update to mapped ID */
1040 if (portnr < ATMEL_MAX_UART)
1041 at91_uarts[portnr] = pdev;
1044 void __init at91_set_serial_console(unsigned portnr)
1046 if (portnr < ATMEL_MAX_UART)
1047 atmel_default_console_device = at91_uarts[portnr];
1048 if (!atmel_default_console_device)
1049 printk(KERN_INFO "AT91: No default serial console defined.\n");
1052 void __init at91_add_device_serial(void)
1056 for (i = 0; i < ATMEL_MAX_UART; i++) {
1058 platform_device_register(at91_uarts[i]);
1062 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1063 void __init at91_set_serial_console(unsigned portnr) {}
1064 void __init at91_add_device_serial(void) {}
1068 /* -------------------------------------------------------------------- */
1070 * These devices are always present and don't need any board-specific
1073 static int __init at91_add_standard_devices(void)
1075 at91_add_device_rtt();
1076 at91_add_device_watchdog();
1080 arch_initcall(at91_add_standard_devices);