arch/arm/mach-at91/at91sam9260_devices.c

   1 /*
   2  * arch/arm/mach-at91/at91sam9260_devices.c
   3  *
   4  *  Copyright (C) 2006 Atmel
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  */
  12 #include <asm/mach/arch.h>
  13 #include <asm/mach/map.h>
  14
  15 #include <linux/platform_device.h>
  16
  17 #include <asm/arch/board.h>
  18 #include <asm/arch/gpio.h>
  19 #include <asm/arch/at91sam9260.h>
  20 #include <asm/arch/at91sam926x_mc.h>
  21 #include <asm/arch/at91sam9260_matrix.h>
  22
  23 #include "generic.h"
  24
  25 #define SZ_512  0x00000200
  26 #define SZ_256  0x00000100
  27 #define SZ_16   0x00000010
  28
  29 /* --------------------------------------------------------------------
  30  *  USB Host
  31  * -------------------------------------------------------------------- */
  32
  33 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  34 static u64 ohci_dmamask = 0xffffffffUL;
  35 static struct at91_usbh_data usbh_data;
  36
  37 static struct resource usbh_resources[] = {
  38         [0] = {
  39                 .start  = AT91SAM9260_UHP_BASE,
  40                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
  41                 .flags  = IORESOURCE_MEM,
  42         },
  43         [1] = {
  44                 .start  = AT91SAM9260_ID_UHP,
  45                 .end    = AT91SAM9260_ID_UHP,
  46                 .flags  = IORESOURCE_IRQ,
  47         },
  48 };
  49
  50 static struct platform_device at91_usbh_device = {
  51         .name           = "at91_ohci",
  52         .id             = -1,
  53         .dev            = {
  54                                 .dma_mask               = &ohci_dmamask,
  55                                 .coherent_dma_mask      = 0xffffffff,
  56                                 .platform_data          = &usbh_data,
  57         },
  58         .resource       = usbh_resources,
  59         .num_resources  = ARRAY_SIZE(usbh_resources),
  60 };
  61
  62 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  63 {
  64         if (!data)
  65                 return;
  66
  67         usbh_data = *data;
  68         platform_device_register(&at91_usbh_device);
  69 }
  70 #else
  71 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  72 #endif
  73
  74
  75 /* --------------------------------------------------------------------
  76  *  USB Device (Gadget)
  77  * -------------------------------------------------------------------- */
  78
  79 #ifdef CONFIG_USB_GADGET_AT91
  80 static struct at91_udc_data udc_data;
  81
  82 static struct resource udc_resources[] = {
  83         [0] = {
  84                 .start  = AT91SAM9260_BASE_UDP,
  85                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
  86                 .flags  = IORESOURCE_MEM,
  87         },
  88         [1] = {
  89                 .start  = AT91SAM9260_ID_UDP,
  90                 .end    = AT91SAM9260_ID_UDP,
  91                 .flags  = IORESOURCE_IRQ,
  92         },
  93 };
  94
  95 static struct platform_device at91_udc_device = {
  96         .name           = "at91_udc",
  97         .id             = -1,
  98         .dev            = {
  99                                 .platform_data          = &udc_data,
 100         },
 101         .resource       = udc_resources,
 102         .num_resources  = ARRAY_SIZE(udc_resources),
 103 };
 104
 105 void __init at91_add_device_udc(struct at91_udc_data *data)
 106 {
 107         if (!data)
 108                 return;
 109
 110         if (data->vbus_pin) {
 111                 at91_set_gpio_input(data->vbus_pin, 0);
 112                 at91_set_deglitch(data->vbus_pin, 1);
 113         }
 114
 115         /* Pullup pin is handled internally by USB device peripheral */
 116
 117         udc_data = *data;
 118         platform_device_register(&at91_udc_device);
 119 }
 120 #else
 121 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 122 #endif
 123
 124
 125 /* --------------------------------------------------------------------
 126  *  Ethernet
 127  * -------------------------------------------------------------------- */
 128
 129 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 130 static u64 eth_dmamask = 0xffffffffUL;
 131 static struct at91_eth_data eth_data;
 132
 133 static struct resource eth_resources[] = {
 134         [0] = {
 135                 .start  = AT91SAM9260_BASE_EMAC,
 136                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
 137                 .flags  = IORESOURCE_MEM,
 138         },
 139         [1] = {
 140                 .start  = AT91SAM9260_ID_EMAC,
 141                 .end    = AT91SAM9260_ID_EMAC,
 142                 .flags  = IORESOURCE_IRQ,
 143         },
 144 };
 145
 146 static struct platform_device at91sam9260_eth_device = {
 147         .name           = "macb",
 148         .id             = -1,
 149         .dev            = {
 150                                 .dma_mask               = &eth_dmamask,
 151                                 .coherent_dma_mask      = 0xffffffff,
 152                                 .platform_data          = &eth_data,
 153         },
 154         .resource       = eth_resources,
 155         .num_resources  = ARRAY_SIZE(eth_resources),
 156 };
 157
 158 void __init at91_add_device_eth(struct at91_eth_data *data)
 159 {
 160         if (!data)
 161                 return;
 162
 163         if (data->phy_irq_pin) {
 164                 at91_set_gpio_input(data->phy_irq_pin, 0);
 165                 at91_set_deglitch(data->phy_irq_pin, 1);
 166         }
 167
 168         /* Pins used for MII and RMII */
 169         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
 170         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 171         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
 172         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
 173         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
 174         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
 175         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
 176         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
 177         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
 178         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
 179
 180         if (!data->is_rmii) {
 181                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
 182                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
 183                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
 184                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
 185                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
 186                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
 187                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
 188                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
 189         }
 190
 191         eth_data = *data;
 192         platform_device_register(&at91sam9260_eth_device);
 193 }
 194 #else
 195 void __init at91_add_device_eth(struct at91_eth_data *data) {}
 196 #endif
 197
 198
 199 /* --------------------------------------------------------------------
 200  *  MMC / SD
 201  * -------------------------------------------------------------------- */
 202
 203 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 204 static u64 mmc_dmamask = 0xffffffffUL;
 205 static struct at91_mmc_data mmc_data;
 206
 207 static struct resource mmc_resources[] = {
 208         [0] = {
 209                 .start  = AT91SAM9260_BASE_MCI,
 210                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 211                 .flags  = IORESOURCE_MEM,
 212         },
 213         [1] = {
 214                 .start  = AT91SAM9260_ID_MCI,
 215                 .end    = AT91SAM9260_ID_MCI,
 216                 .flags  = IORESOURCE_IRQ,
 217         },
 218 };
 219
 220 static struct platform_device at91sam9260_mmc_device = {
 221         .name           = "at91_mci",
 222         .id             = -1,
 223         .dev            = {
 224                                 .dma_mask               = &mmc_dmamask,
 225                                 .coherent_dma_mask      = 0xffffffff,
 226                                 .platform_data          = &mmc_data,
 227         },
 228         .resource       = mmc_resources,
 229         .num_resources  = ARRAY_SIZE(mmc_resources),
 230 };
 231
 232 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 233 {
 234         if (!data)
 235                 return;
 236
 237         /* input/irq */
 238         if (data->det_pin) {
 239                 at91_set_gpio_input(data->det_pin, 1);
 240                 at91_set_deglitch(data->det_pin, 1);
 241         }
 242         if (data->wp_pin)
 243                 at91_set_gpio_input(data->wp_pin, 1);
 244         if (data->vcc_pin)
 245                 at91_set_gpio_output(data->vcc_pin, 0);
 246
 247         /* CLK */
 248         at91_set_A_periph(AT91_PIN_PA8, 0);
 249
 250         if (data->slot_b) {
 251                 /* CMD */
 252                 at91_set_B_periph(AT91_PIN_PA1, 1);
 253
 254                 /* DAT0, maybe DAT1..DAT3 */
 255                 at91_set_B_periph(AT91_PIN_PA0, 1);
 256                 if (data->wire4) {
 257                         at91_set_B_periph(AT91_PIN_PA5, 1);
 258                         at91_set_B_periph(AT91_PIN_PA4, 1);
 259                         at91_set_B_periph(AT91_PIN_PA3, 1);
 260                 }
 261         } else {
 262                 /* CMD */
 263                 at91_set_A_periph(AT91_PIN_PA7, 1);
 264
 265                 /* DAT0, maybe DAT1..DAT3 */
 266                 at91_set_A_periph(AT91_PIN_PA6, 1);
 267                 if (data->wire4) {
 268                         at91_set_A_periph(AT91_PIN_PA9, 1);
 269                         at91_set_A_periph(AT91_PIN_PA10, 1);
 270                         at91_set_A_periph(AT91_PIN_PA11, 1);
 271                 }
 272         }
 273
 274         mmc_data = *data;
 275         platform_device_register(&at91sam9260_mmc_device);
 276 }
 277 #else
 278 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 279 #endif
 280
 281
 282 /* --------------------------------------------------------------------
 283  *  NAND / SmartMedia
 284  * -------------------------------------------------------------------- */
 285
 286 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
 287 static struct at91_nand_data nand_data;
 288
 289 #define NAND_BASE       AT91_CHIPSELECT_3
 290
 291 static struct resource nand_resources[] = {
 292         {
 293                 .start  = NAND_BASE,
 294                 .end    = NAND_BASE + SZ_8M - 1,
 295                 .flags  = IORESOURCE_MEM,
 296         }
 297 };
 298
 299 static struct platform_device at91sam9260_nand_device = {
 300         .name           = "at91_nand",
 301         .id             = -1,
 302         .dev            = {
 303                                 .platform_data  = &nand_data,
 304         },
 305         .resource       = nand_resources,
 306         .num_resources  = ARRAY_SIZE(nand_resources),
 307 };
 308
 309 void __init at91_add_device_nand(struct at91_nand_data *data)
 310 {
 311         unsigned long csa, mode;
 312
 313         if (!data)
 314                 return;
 315
 316         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 317         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
 318
 319         /* set the bus interface characteristics */
 320         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 321                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 322
 323         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5)
 324                         | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
 325
 326         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
 327
 328         if (data->bus_width_16)
 329                 mode = AT91_SMC_DBW_16;
 330         else
 331                 mode = AT91_SMC_DBW_8;
 332         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1));
 333
 334         /* enable pin */
 335         if (data->enable_pin)
 336                 at91_set_gpio_output(data->enable_pin, 1);
 337
 338         /* ready/busy pin */
 339         if (data->rdy_pin)
 340                 at91_set_gpio_input(data->rdy_pin, 1);
 341
 342         /* card detect pin */
 343         if (data->det_pin)
 344                 at91_set_gpio_input(data->det_pin, 1);
 345
 346         nand_data = *data;
 347         platform_device_register(&at91sam9260_nand_device);
 348 }
 349 #else
 350 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 351 #endif
 352
 353
 354 /* --------------------------------------------------------------------
 355  *  TWI (i2c)
 356  * -------------------------------------------------------------------- */
 357
 358 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 359
 360 static struct resource twi_resources[] = {
 361         [0] = {
 362                 .start  = AT91SAM9260_BASE_TWI,
 363                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 364                 .flags  = IORESOURCE_MEM,
 365         },
 366         [1] = {
 367                 .start  = AT91SAM9260_ID_TWI,
 368                 .end    = AT91SAM9260_ID_TWI,
 369                 .flags  = IORESOURCE_IRQ,
 370         },
 371 };
 372
 373 static struct platform_device at91sam9260_twi_device = {
 374         .name           = "at91_i2c",
 375         .id             = -1,
 376         .resource       = twi_resources,
 377         .num_resources  = ARRAY_SIZE(twi_resources),
 378 };
 379
 380 void __init at91_add_device_i2c(void)
 381 {
 382         /* pins used for TWI interface */
 383         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 384         at91_set_multi_drive(AT91_PIN_PA23, 1);
 385
 386         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 387         at91_set_multi_drive(AT91_PIN_PA24, 1);
 388
 389         platform_device_register(&at91sam9260_twi_device);
 390 }
 391 #else
 392 void __init at91_add_device_i2c(void) {}
 393 #endif
 394
 395
 396 /* --------------------------------------------------------------------
 397  *  SPI
 398  * -------------------------------------------------------------------- */
 399
 400 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 401 static u64 spi_dmamask = 0xffffffffUL;
 402
 403 static struct resource spi0_resources[] = {
 404         [0] = {
 405                 .start  = AT91SAM9260_BASE_SPI0,
 406                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 407                 .flags  = IORESOURCE_MEM,
 408         },
 409         [1] = {
 410                 .start  = AT91SAM9260_ID_SPI0,
 411                 .end    = AT91SAM9260_ID_SPI0,
 412                 .flags  = IORESOURCE_IRQ,
 413         },
 414 };
 415
 416 static struct platform_device at91sam9260_spi0_device = {
 417         .name           = "atmel_spi",
 418         .id             = 0,
 419         .dev            = {
 420                                 .dma_mask               = &spi_dmamask,
 421                                 .coherent_dma_mask      = 0xffffffff,
 422         },
 423         .resource       = spi0_resources,
 424         .num_resources  = ARRAY_SIZE(spi0_resources),
 425 };
 426
 427 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 428
 429 static struct resource spi1_resources[] = {
 430         [0] = {
 431                 .start  = AT91SAM9260_BASE_SPI1,
 432                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 433                 .flags  = IORESOURCE_MEM,
 434         },
 435         [1] = {
 436                 .start  = AT91SAM9260_ID_SPI1,
 437                 .end    = AT91SAM9260_ID_SPI1,
 438                 .flags  = IORESOURCE_IRQ,
 439         },
 440 };
 441
 442 static struct platform_device at91sam9260_spi1_device = {
 443         .name           = "atmel_spi",
 444         .id             = 1,
 445         .dev            = {
 446                                 .dma_mask               = &spi_dmamask,
 447                                 .coherent_dma_mask      = 0xffffffff,
 448         },
 449         .resource       = spi1_resources,
 450         .num_resources  = ARRAY_SIZE(spi1_resources),
 451 };
 452
 453 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 454
 455 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 456 {
 457         int i;
 458         unsigned long cs_pin;
 459         short enable_spi0 = 0;
 460         short enable_spi1 = 0;
 461
 462         /* Choose SPI chip-selects */
 463         for (i = 0; i < nr_devices; i++) {
 464                 if (devices[i].controller_data)
 465                         cs_pin = (unsigned long) devices[i].controller_data;
 466                 else if (devices[i].bus_num == 0)
 467                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 468                 else
 469                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 470
 471                 if (devices[i].bus_num == 0)
 472                         enable_spi0 = 1;
 473                 else
 474                         enable_spi1 = 1;
 475
 476                 /* enable chip-select pin */
 477                 at91_set_gpio_output(cs_pin, 1);
 478
 479                 /* pass chip-select pin to driver */
 480                 devices[i].controller_data = (void *) cs_pin;
 481         }
 482
 483         spi_register_board_info(devices, nr_devices);
 484
 485         /* Configure SPI bus(es) */
 486         if (enable_spi0) {
 487                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 488                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 489                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 490
 491                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 492                 platform_device_register(&at91sam9260_spi0_device);
 493         }
 494         if (enable_spi1) {
 495                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 496                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 497                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 498
 499                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 500                 platform_device_register(&at91sam9260_spi1_device);
 501         }
 502 }
 503 #else
 504 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 505 #endif
 506
 507
 508 /* --------------------------------------------------------------------
 509  *  LEDs
 510  * -------------------------------------------------------------------- */
 511
 512 #if defined(CONFIG_LEDS)
 513 u8 at91_leds_cpu;
 514 u8 at91_leds_timer;
 515
 516 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
 517 {
 518         /* Enable GPIO to access the LEDs */
 519         at91_set_gpio_output(cpu_led, 1);
 520         at91_set_gpio_output(timer_led, 1);
 521
 522         at91_leds_cpu   = cpu_led;
 523         at91_leds_timer = timer_led;
 524 }
 525 #else
 526 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 527 #endif
 528
 529
 530 /* --------------------------------------------------------------------
 531  *  UART
 532  * -------------------------------------------------------------------- */
 533 #if defined(CONFIG_SERIAL_ATMEL)
 534 static struct resource dbgu_resources[] = {
 535         [0] = {
 536                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 537                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 538                 .flags  = IORESOURCE_MEM,
 539         },
 540         [1] = {
 541                 .start  = AT91_ID_SYS,
 542                 .end    = AT91_ID_SYS,
 543                 .flags  = IORESOURCE_IRQ,
 544         },
 545 };
 546
 547 static struct atmel_uart_data dbgu_data = {
 548         .use_dma_tx     = 0,
 549         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 550         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 551 };
 552
 553 static struct platform_device at91sam9260_dbgu_device = {
 554         .name           = "atmel_usart",
 555         .id             = 0,
 556         .dev            = {
 557                                 .platform_data  = &dbgu_data,
 558                                 .coherent_dma_mask = 0xffffffff,
 559         },
 560         .resource       = dbgu_resources,
 561         .num_resources  = ARRAY_SIZE(dbgu_resources),
 562 };
 563
 564 static inline void configure_dbgu_pins(void)
 565 {
 566         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 567         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 568 }
 569
 570 static struct resource uart0_resources[] = {
 571         [0] = {
 572                 .start  = AT91SAM9260_BASE_US0,
 573                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 574                 .flags  = IORESOURCE_MEM,
 575         },
 576         [1] = {
 577                 .start  = AT91SAM9260_ID_US0,
 578                 .end    = AT91SAM9260_ID_US0,
 579                 .flags  = IORESOURCE_IRQ,
 580         },
 581 };
 582
 583 static struct atmel_uart_data uart0_data = {
 584         .use_dma_tx     = 1,
 585         .use_dma_rx     = 1,
 586 };
 587
 588 static struct platform_device at91sam9260_uart0_device = {
 589         .name           = "atmel_usart",
 590         .id             = 1,
 591         .dev            = {
 592                                 .platform_data  = &uart0_data,
 593                                 .coherent_dma_mask = 0xffffffff,
 594         },
 595         .resource       = uart0_resources,
 596         .num_resources  = ARRAY_SIZE(uart0_resources),
 597 };
 598
 599 static inline void configure_usart0_pins(void)
 600 {
 601         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 602         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 603         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS0 */
 604         at91_set_A_periph(AT91_PIN_PB27, 0);            /* CTS0 */
 605         at91_set_A_periph(AT91_PIN_PB24, 0);            /* DTR0 */
 606         at91_set_A_periph(AT91_PIN_PB22, 0);            /* DSR0 */
 607         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD0 */
 608         at91_set_A_periph(AT91_PIN_PB25, 0);            /* RI0 */
 609 }
 610
 611 static struct resource uart1_resources[] = {
 612         [0] = {
 613                 .start  = AT91SAM9260_BASE_US1,
 614                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 615                 .flags  = IORESOURCE_MEM,
 616         },
 617         [1] = {
 618                 .start  = AT91SAM9260_ID_US1,
 619                 .end    = AT91SAM9260_ID_US1,
 620                 .flags  = IORESOURCE_IRQ,
 621         },
 622 };
 623
 624 static struct atmel_uart_data uart1_data = {
 625         .use_dma_tx     = 1,
 626         .use_dma_rx     = 1,
 627 };
 628
 629 static struct platform_device at91sam9260_uart1_device = {
 630         .name           = "atmel_usart",
 631         .id             = 2,
 632         .dev            = {
 633                                 .platform_data  = &uart1_data,
 634                                 .coherent_dma_mask = 0xffffffff,
 635         },
 636         .resource       = uart1_resources,
 637         .num_resources  = ARRAY_SIZE(uart1_resources),
 638 };
 639
 640 static inline void configure_usart1_pins(void)
 641 {
 642         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 643         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 644         at91_set_A_periph(AT91_PIN_PB28, 0);            /* RTS1 */
 645         at91_set_A_periph(AT91_PIN_PB29, 0);            /* CTS1 */
 646 }
 647
 648 static struct resource uart2_resources[] = {
 649         [0] = {
 650                 .start  = AT91SAM9260_BASE_US2,
 651                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 652                 .flags  = IORESOURCE_MEM,
 653         },
 654         [1] = {
 655                 .start  = AT91SAM9260_ID_US2,
 656                 .end    = AT91SAM9260_ID_US2,
 657                 .flags  = IORESOURCE_IRQ,
 658         },
 659 };
 660
 661 static struct atmel_uart_data uart2_data = {
 662         .use_dma_tx     = 1,
 663         .use_dma_rx     = 1,
 664 };
 665
 666 static struct platform_device at91sam9260_uart2_device = {
 667         .name           = "atmel_usart",
 668         .id             = 3,
 669         .dev            = {
 670                                 .platform_data  = &uart2_data,
 671                                 .coherent_dma_mask = 0xffffffff,
 672         },
 673         .resource       = uart2_resources,
 674         .num_resources  = ARRAY_SIZE(uart2_resources),
 675 };
 676
 677 static inline void configure_usart2_pins(void)
 678 {
 679         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 680         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 681 }
 682
 683 static struct resource uart3_resources[] = {
 684         [0] = {
 685                 .start  = AT91SAM9260_BASE_US3,
 686                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 687                 .flags  = IORESOURCE_MEM,
 688         },
 689         [1] = {
 690                 .start  = AT91SAM9260_ID_US3,
 691                 .end    = AT91SAM9260_ID_US3,
 692                 .flags  = IORESOURCE_IRQ,
 693         },
 694 };
 695
 696 static struct atmel_uart_data uart3_data = {
 697         .use_dma_tx     = 1,
 698         .use_dma_rx     = 1,
 699 };
 700
 701 static struct platform_device at91sam9260_uart3_device = {
 702         .name           = "atmel_usart",
 703         .id             = 4,
 704         .dev            = {
 705                                 .platform_data  = &uart3_data,
 706                                 .coherent_dma_mask = 0xffffffff,
 707         },
 708         .resource       = uart3_resources,
 709         .num_resources  = ARRAY_SIZE(uart3_resources),
 710 };
 711
 712 static inline void configure_usart3_pins(void)
 713 {
 714         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 715         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 716 }
 717
 718 static struct resource uart4_resources[] = {
 719         [0] = {
 720                 .start  = AT91SAM9260_BASE_US4,
 721                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 722                 .flags  = IORESOURCE_MEM,
 723         },
 724         [1] = {
 725                 .start  = AT91SAM9260_ID_US4,
 726                 .end    = AT91SAM9260_ID_US4,
 727                 .flags  = IORESOURCE_IRQ,
 728         },
 729 };
 730
 731 static struct atmel_uart_data uart4_data = {
 732         .use_dma_tx     = 1,
 733         .use_dma_rx     = 1,
 734 };
 735
 736 static struct platform_device at91sam9260_uart4_device = {
 737         .name           = "atmel_usart",
 738         .id             = 5,
 739         .dev            = {
 740                                 .platform_data  = &uart4_data,
 741                                 .coherent_dma_mask = 0xffffffff,
 742         },
 743         .resource       = uart4_resources,
 744         .num_resources  = ARRAY_SIZE(uart4_resources),
 745 };
 746
 747 static inline void configure_usart4_pins(void)
 748 {
 749         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 750         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 751 }
 752
 753 static struct resource uart5_resources[] = {
 754         [0] = {
 755                 .start  = AT91SAM9260_BASE_US5,
 756                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 757                 .flags  = IORESOURCE_MEM,
 758         },
 759         [1] = {
 760                 .start  = AT91SAM9260_ID_US5,
 761                 .end    = AT91SAM9260_ID_US5,
 762                 .flags  = IORESOURCE_IRQ,
 763         },
 764 };
 765
 766 static struct atmel_uart_data uart5_data = {
 767         .use_dma_tx     = 1,
 768         .use_dma_rx     = 1,
 769 };
 770
 771 static struct platform_device at91sam9260_uart5_device = {
 772         .name           = "atmel_usart",
 773         .id             = 6,
 774         .dev            = {
 775                                 .platform_data  = &uart5_data,
 776                                 .coherent_dma_mask = 0xffffffff,
 777         },
 778         .resource       = uart5_resources,
 779         .num_resources  = ARRAY_SIZE(uart5_resources),
 780 };
 781
 782 static inline void configure_usart5_pins(void)
 783 {
 784         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 785         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 786 }
 787
 788 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
 789 struct platform_device *atmel_default_console_device;   /* the serial console device */
 790
 791 void __init at91_init_serial(struct at91_uart_config *config)
 792 {
 793         int i;
 794
 795         /* Fill in list of supported UARTs */
 796         for (i = 0; i < config->nr_tty; i++) {
 797                 switch (config->tty_map[i]) {
 798                         case 0:
 799                                 configure_usart0_pins();
 800                                 at91_uarts[i] = &at91sam9260_uart0_device;
 801                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 802                                 break;
 803                         case 1:
 804                                 configure_usart1_pins();
 805                                 at91_uarts[i] = &at91sam9260_uart1_device;
 806                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 807                                 break;
 808                         case 2:
 809                                 configure_usart2_pins();
 810                                 at91_uarts[i] = &at91sam9260_uart2_device;
 811                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 812                                 break;
 813                         case 3:
 814                                 configure_usart3_pins();
 815                                 at91_uarts[i] = &at91sam9260_uart3_device;
 816                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 817                                 break;
 818                         case 4:
 819                                 configure_usart4_pins();
 820                                 at91_uarts[i] = &at91sam9260_uart4_device;
 821                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
 822                                 break;
 823                         case 5:
 824                                 configure_usart5_pins();
 825                                 at91_uarts[i] = &at91sam9260_uart5_device;
 826                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
 827                                 break;
 828                         case 6:
 829                                 configure_dbgu_pins();
 830                                 at91_uarts[i] = &at91sam9260_dbgu_device;
 831                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
 832                                 break;
 833                         default:
 834                                 continue;
 835                 }
 836                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
 837         }
 838
 839         /* Set serial console device */
 840         if (config->console_tty < ATMEL_MAX_UART)
 841                 atmel_default_console_device = at91_uarts[config->console_tty];
 842         if (!atmel_default_console_device)
 843                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 844 }
 845
 846 void __init at91_add_device_serial(void)
 847 {
 848         int i;
 849
 850         for (i = 0; i < ATMEL_MAX_UART; i++) {
 851                 if (at91_uarts[i])
 852                         platform_device_register(at91_uarts[i]);
 853         }
 854 }
 855 #else
 856 void __init at91_init_serial(struct at91_uart_config *config) {}
 857 void __init at91_add_device_serial(void) {}
 858 #endif
 859
 860
 861 /* -------------------------------------------------------------------- */
 862 /*
 863  * These devices are always present and don't need any board-specific
 864  * setup.
 865  */
 866 static int __init at91_add_standard_devices(void)
 867 {
 868         return 0;
 869 }
 870
 871 arch_initcall(at91_add_standard_devices);