git.oblomov.eu Git - linux-2.6/blob - 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
  26 /* --------------------------------------------------------------------
  27  *  USB Host
  28  * -------------------------------------------------------------------- */
  29
  30 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  31 static u64 ohci_dmamask = 0xffffffffUL;
  32 static struct at91_usbh_data usbh_data;
  33
  34 static struct resource usbh_resources[] = {
  35         [0] = {
  36                 .start  = AT91SAM9260_UHP_BASE,
  37                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
  38                 .flags  = IORESOURCE_MEM,
  39         },
  40         [1] = {
  41                 .start  = AT91SAM9260_ID_UHP,
  42                 .end    = AT91SAM9260_ID_UHP,
  43                 .flags  = IORESOURCE_IRQ,
  44         },
  45 };
  46
  47 static struct platform_device at91_usbh_device = {
  48         .name           = "at91_ohci",
  49         .id             = -1,
  50         .dev            = {
  51                                 .dma_mask               = &ohci_dmamask,
  52                                 .coherent_dma_mask      = 0xffffffff,
  53                                 .platform_data          = &usbh_data,
  54         },
  55         .resource       = usbh_resources,
  56         .num_resources  = ARRAY_SIZE(usbh_resources),
  57 };
  58
  59 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  60 {
  61         if (!data)
  62                 return;
  63
  64         usbh_data = *data;
  65         platform_device_register(&at91_usbh_device);
  66 }
  67 #else
  68 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  69 #endif
  70
  71
  72 /* --------------------------------------------------------------------
  73  *  USB Device (Gadget)
  74  * -------------------------------------------------------------------- */
  75
  76 #ifdef CONFIG_USB_GADGET_AT91
  77 static struct at91_udc_data udc_data;
  78
  79 static struct resource udc_resources[] = {
  80         [0] = {
  81                 .start  = AT91SAM9260_BASE_UDP,
  82                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
  83                 .flags  = IORESOURCE_MEM,
  84         },
  85         [1] = {
  86                 .start  = AT91SAM9260_ID_UDP,
  87                 .end    = AT91SAM9260_ID_UDP,
  88                 .flags  = IORESOURCE_IRQ,
  89         },
  90 };
  91
  92 static struct platform_device at91_udc_device = {
  93         .name           = "at91_udc",
  94         .id             = -1,
  95         .dev            = {
  96                                 .platform_data          = &udc_data,
  97         },
  98         .resource       = udc_resources,
  99         .num_resources  = ARRAY_SIZE(udc_resources),
 100 };
 101
 102 void __init at91_add_device_udc(struct at91_udc_data *data)
 103 {
 104         if (!data)
 105                 return;
 106
 107         if (data->vbus_pin) {
 108                 at91_set_gpio_input(data->vbus_pin, 0);
 109                 at91_set_deglitch(data->vbus_pin, 1);
 110         }
 111
 112         /* Pullup pin is handled internally by USB device peripheral */
 113
 114         udc_data = *data;
 115         platform_device_register(&at91_udc_device);
 116 }
 117 #else
 118 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 119 #endif
 120
 121
 122 /* --------------------------------------------------------------------
 123  *  Ethernet
 124  * -------------------------------------------------------------------- */
 125
 126 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 127 static u64 eth_dmamask = 0xffffffffUL;
 128 static struct at91_eth_data eth_data;
 129
 130 static struct resource eth_resources[] = {
 131         [0] = {
 132                 .start  = AT91SAM9260_BASE_EMAC,
 133                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
 134                 .flags  = IORESOURCE_MEM,
 135         },
 136         [1] = {
 137                 .start  = AT91SAM9260_ID_EMAC,
 138                 .end    = AT91SAM9260_ID_EMAC,
 139                 .flags  = IORESOURCE_IRQ,
 140         },
 141 };
 142
 143 static struct platform_device at91sam9260_eth_device = {
 144         .name           = "macb",
 145         .id             = -1,
 146         .dev            = {
 147                                 .dma_mask               = &eth_dmamask,
 148                                 .coherent_dma_mask      = 0xffffffff,
 149                                 .platform_data          = &eth_data,
 150         },
 151         .resource       = eth_resources,
 152         .num_resources  = ARRAY_SIZE(eth_resources),
 153 };
 154
 155 void __init at91_add_device_eth(struct at91_eth_data *data)
 156 {
 157         if (!data)
 158                 return;
 159
 160         if (data->phy_irq_pin) {
 161                 at91_set_gpio_input(data->phy_irq_pin, 0);
 162                 at91_set_deglitch(data->phy_irq_pin, 1);
 163         }
 164
 165         /* Pins used for MII and RMII */
 166         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
 167         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 168         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
 169         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
 170         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
 171         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
 172         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
 173         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
 174         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
 175         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
 176
 177         if (!data->is_rmii) {
 178                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
 179                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
 180                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
 181                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
 182                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
 183                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
 184                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
 185                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
 186         }
 187
 188         eth_data = *data;
 189         platform_device_register(&at91sam9260_eth_device);
 190 }
 191 #else
 192 void __init at91_add_device_eth(struct at91_eth_data *data) {}
 193 #endif
 194
 195
 196 /* --------------------------------------------------------------------
 197  *  MMC / SD
 198  * -------------------------------------------------------------------- */
 199
 200 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 201 static u64 mmc_dmamask = 0xffffffffUL;
 202 static struct at91_mmc_data mmc_data;
 203
 204 static struct resource mmc_resources[] = {
 205         [0] = {
 206                 .start  = AT91SAM9260_BASE_MCI,
 207                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 208                 .flags  = IORESOURCE_MEM,
 209         },
 210         [1] = {
 211                 .start  = AT91SAM9260_ID_MCI,
 212                 .end    = AT91SAM9260_ID_MCI,
 213                 .flags  = IORESOURCE_IRQ,
 214         },
 215 };
 216
 217 static struct platform_device at91sam9260_mmc_device = {
 218         .name           = "at91_mci",
 219         .id             = -1,
 220         .dev            = {
 221                                 .dma_mask               = &mmc_dmamask,
 222                                 .coherent_dma_mask      = 0xffffffff,
 223                                 .platform_data          = &mmc_data,
 224         },
 225         .resource       = mmc_resources,
 226         .num_resources  = ARRAY_SIZE(mmc_resources),
 227 };
 228
 229 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 230 {
 231         if (!data)
 232                 return;
 233
 234         /* input/irq */
 235         if (data->det_pin) {
 236                 at91_set_gpio_input(data->det_pin, 1);
 237                 at91_set_deglitch(data->det_pin, 1);
 238         }
 239         if (data->wp_pin)
 240                 at91_set_gpio_input(data->wp_pin, 1);
 241         if (data->vcc_pin)
 242                 at91_set_gpio_output(data->vcc_pin, 0);
 243
 244         /* CLK */
 245         at91_set_A_periph(AT91_PIN_PA8, 0);
 246
 247         if (data->slot_b) {
 248                 /* CMD */
 249                 at91_set_B_periph(AT91_PIN_PA1, 1);
 250
 251                 /* DAT0, maybe DAT1..DAT3 */
 252                 at91_set_B_periph(AT91_PIN_PA0, 1);
 253                 if (data->wire4) {
 254                         at91_set_B_periph(AT91_PIN_PA5, 1);
 255                         at91_set_B_periph(AT91_PIN_PA4, 1);
 256                         at91_set_B_periph(AT91_PIN_PA3, 1);
 257                 }
 258         } else {
 259                 /* CMD */
 260                 at91_set_A_periph(AT91_PIN_PA7, 1);
 261
 262                 /* DAT0, maybe DAT1..DAT3 */
 263                 at91_set_A_periph(AT91_PIN_PA6, 1);
 264                 if (data->wire4) {
 265                         at91_set_A_periph(AT91_PIN_PA9, 1);
 266                         at91_set_A_periph(AT91_PIN_PA10, 1);
 267                         at91_set_A_periph(AT91_PIN_PA11, 1);
 268                 }
 269         }
 270
 271         mmc_data = *data;
 272         platform_device_register(&at91sam9260_mmc_device);
 273 }
 274 #else
 275 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 276 #endif
 277
 278
 279 /* --------------------------------------------------------------------
 280  *  NAND / SmartMedia
 281  * -------------------------------------------------------------------- */
 282
 283 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
 284 static struct at91_nand_data nand_data;
 285
 286 #define NAND_BASE       AT91_CHIPSELECT_3
 287
 288 static struct resource nand_resources[] = {
 289         {
 290                 .start  = NAND_BASE,
 291                 .end    = NAND_BASE + SZ_8M - 1,
 292                 .flags  = IORESOURCE_MEM,
 293         }
 294 };
 295
 296 static struct platform_device at91sam9260_nand_device = {
 297         .name           = "at91_nand",
 298         .id             = -1,
 299         .dev            = {
 300                                 .platform_data  = &nand_data,
 301         },
 302         .resource       = nand_resources,
 303         .num_resources  = ARRAY_SIZE(nand_resources),
 304 };
 305
 306 void __init at91_add_device_nand(struct at91_nand_data *data)
 307 {
 308         unsigned long csa, mode;
 309
 310         if (!data)
 311                 return;
 312
 313         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 314         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
 315
 316         /* set the bus interface characteristics */
 317         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 318                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 319
 320         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
 321                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
 322
 323         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
 324
 325         if (data->bus_width_16)
 326                 mode = AT91_SMC_DBW_16;
 327         else
 328                 mode = AT91_SMC_DBW_8;
 329         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
 330
 331         /* enable pin */
 332         if (data->enable_pin)
 333                 at91_set_gpio_output(data->enable_pin, 1);
 334
 335         /* ready/busy pin */
 336         if (data->rdy_pin)
 337                 at91_set_gpio_input(data->rdy_pin, 1);
 338
 339         /* card detect pin */
 340         if (data->det_pin)
 341                 at91_set_gpio_input(data->det_pin, 1);
 342
 343         nand_data = *data;
 344         platform_device_register(&at91sam9260_nand_device);
 345 }
 346 #else
 347 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 348 #endif
 349
 350
 351 /* --------------------------------------------------------------------
 352  *  TWI (i2c)
 353  * -------------------------------------------------------------------- */
 354
 355 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 356
 357 static struct resource twi_resources[] = {
 358         [0] = {
 359                 .start  = AT91SAM9260_BASE_TWI,
 360                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 361                 .flags  = IORESOURCE_MEM,
 362         },
 363         [1] = {
 364                 .start  = AT91SAM9260_ID_TWI,
 365                 .end    = AT91SAM9260_ID_TWI,
 366                 .flags  = IORESOURCE_IRQ,
 367         },
 368 };
 369
 370 static struct platform_device at91sam9260_twi_device = {
 371         .name           = "at91_i2c",
 372         .id             = -1,
 373         .resource       = twi_resources,
 374         .num_resources  = ARRAY_SIZE(twi_resources),
 375 };
 376
 377 void __init at91_add_device_i2c(void)
 378 {
 379         /* pins used for TWI interface */
 380         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 381         at91_set_multi_drive(AT91_PIN_PA23, 1);
 382
 383         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 384         at91_set_multi_drive(AT91_PIN_PA24, 1);
 385
 386         platform_device_register(&at91sam9260_twi_device);
 387 }
 388 #else
 389 void __init at91_add_device_i2c(void) {}
 390 #endif
 391
 392
 393 /* --------------------------------------------------------------------
 394  *  SPI
 395  * -------------------------------------------------------------------- */
 396
 397 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 398 static u64 spi_dmamask = 0xffffffffUL;
 399
 400 static struct resource spi0_resources[] = {
 401         [0] = {
 402                 .start  = AT91SAM9260_BASE_SPI0,
 403                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 404                 .flags  = IORESOURCE_MEM,
 405         },
 406         [1] = {
 407                 .start  = AT91SAM9260_ID_SPI0,
 408                 .end    = AT91SAM9260_ID_SPI0,
 409                 .flags  = IORESOURCE_IRQ,
 410         },
 411 };
 412
 413 static struct platform_device at91sam9260_spi0_device = {
 414         .name           = "atmel_spi",
 415         .id             = 0,
 416         .dev            = {
 417                                 .dma_mask               = &spi_dmamask,
 418                                 .coherent_dma_mask      = 0xffffffff,
 419         },
 420         .resource       = spi0_resources,
 421         .num_resources  = ARRAY_SIZE(spi0_resources),
 422 };
 423
 424 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 425
 426 static struct resource spi1_resources[] = {
 427         [0] = {
 428                 .start  = AT91SAM9260_BASE_SPI1,
 429                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 430                 .flags  = IORESOURCE_MEM,
 431         },
 432         [1] = {
 433                 .start  = AT91SAM9260_ID_SPI1,
 434                 .end    = AT91SAM9260_ID_SPI1,
 435                 .flags  = IORESOURCE_IRQ,
 436         },
 437 };
 438
 439 static struct platform_device at91sam9260_spi1_device = {
 440         .name           = "atmel_spi",
 441         .id             = 1,
 442         .dev            = {
 443                                 .dma_mask               = &spi_dmamask,
 444                                 .coherent_dma_mask      = 0xffffffff,
 445         },
 446         .resource       = spi1_resources,
 447         .num_resources  = ARRAY_SIZE(spi1_resources),
 448 };
 449
 450 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 451
 452 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 453 {
 454         int i;
 455         unsigned long cs_pin;
 456         short enable_spi0 = 0;
 457         short enable_spi1 = 0;
 458
 459         /* Choose SPI chip-selects */
 460         for (i = 0; i < nr_devices; i++) {
 461                 if (devices[i].controller_data)
 462                         cs_pin = (unsigned long) devices[i].controller_data;
 463                 else if (devices[i].bus_num == 0)
 464                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 465                 else
 466                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 467
 468                 if (devices[i].bus_num == 0)
 469                         enable_spi0 = 1;
 470                 else
 471                         enable_spi1 = 1;
 472
 473                 /* enable chip-select pin */
 474                 at91_set_gpio_output(cs_pin, 1);
 475
 476                 /* pass chip-select pin to driver */
 477                 devices[i].controller_data = (void *) cs_pin;
 478         }
 479
 480         spi_register_board_info(devices, nr_devices);
 481
 482         /* Configure SPI bus(es) */
 483         if (enable_spi0) {
 484                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 485                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 486                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 487
 488                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 489                 platform_device_register(&at91sam9260_spi0_device);
 490         }
 491         if (enable_spi1) {
 492                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 493                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 494                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 495
 496                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 497                 platform_device_register(&at91sam9260_spi1_device);
 498         }
 499 }
 500 #else
 501 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 502 #endif
 503
 504
 505 /* --------------------------------------------------------------------
 506  *  LEDs
 507  * -------------------------------------------------------------------- */
 508
 509 #if defined(CONFIG_LEDS)
 510 u8 at91_leds_cpu;
 511 u8 at91_leds_timer;
 512
 513 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
 514 {
 515         /* Enable GPIO to access the LEDs */
 516         at91_set_gpio_output(cpu_led, 1);
 517         at91_set_gpio_output(timer_led, 1);
 518
 519         at91_leds_cpu   = cpu_led;
 520         at91_leds_timer = timer_led;
 521 }
 522 #else
 523 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 524 #endif
 525
 526
 527 /* --------------------------------------------------------------------
 528  *  UART
 529  * -------------------------------------------------------------------- */
 530 #if defined(CONFIG_SERIAL_ATMEL)
 531 static struct resource dbgu_resources[] = {
 532         [0] = {
 533                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 534                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 535                 .flags  = IORESOURCE_MEM,
 536         },
 537         [1] = {
 538                 .start  = AT91_ID_SYS,
 539                 .end    = AT91_ID_SYS,
 540                 .flags  = IORESOURCE_IRQ,
 541         },
 542 };
 543
 544 static struct atmel_uart_data dbgu_data = {
 545         .use_dma_tx     = 0,
 546         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 547         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 548 };
 549
 550 static struct platform_device at91sam9260_dbgu_device = {
 551         .name           = "atmel_usart",
 552         .id             = 0,
 553         .dev            = {
 554                                 .platform_data  = &dbgu_data,
 555                                 .coherent_dma_mask = 0xffffffff,
 556         },
 557         .resource       = dbgu_resources,
 558         .num_resources  = ARRAY_SIZE(dbgu_resources),
 559 };
 560
 561 static inline void configure_dbgu_pins(void)
 562 {
 563         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 564         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 565 }
 566
 567 static struct resource uart0_resources[] = {
 568         [0] = {
 569                 .start  = AT91SAM9260_BASE_US0,
 570                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 571                 .flags  = IORESOURCE_MEM,
 572         },
 573         [1] = {
 574                 .start  = AT91SAM9260_ID_US0,
 575                 .end    = AT91SAM9260_ID_US0,
 576                 .flags  = IORESOURCE_IRQ,
 577         },
 578 };
 579
 580 static struct atmel_uart_data uart0_data = {
 581         .use_dma_tx     = 1,
 582         .use_dma_rx     = 1,
 583 };
 584
 585 static struct platform_device at91sam9260_uart0_device = {
 586         .name           = "atmel_usart",
 587         .id             = 1,
 588         .dev            = {
 589                                 .platform_data  = &uart0_data,
 590                                 .coherent_dma_mask = 0xffffffff,
 591         },
 592         .resource       = uart0_resources,
 593         .num_resources  = ARRAY_SIZE(uart0_resources),
 594 };
 595
 596 static inline void configure_usart0_pins(void)
 597 {
 598         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 599         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 600         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS0 */
 601         at91_set_A_periph(AT91_PIN_PB27, 0);            /* CTS0 */
 602         at91_set_A_periph(AT91_PIN_PB24, 0);            /* DTR0 */
 603         at91_set_A_periph(AT91_PIN_PB22, 0);            /* DSR0 */
 604         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD0 */
 605         at91_set_A_periph(AT91_PIN_PB25, 0);            /* RI0 */
 606 }
 607
 608 static struct resource uart1_resources[] = {
 609         [0] = {
 610                 .start  = AT91SAM9260_BASE_US1,
 611                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 612                 .flags  = IORESOURCE_MEM,
 613         },
 614         [1] = {
 615                 .start  = AT91SAM9260_ID_US1,
 616                 .end    = AT91SAM9260_ID_US1,
 617                 .flags  = IORESOURCE_IRQ,
 618         },
 619 };
 620
 621 static struct atmel_uart_data uart1_data = {
 622         .use_dma_tx     = 1,
 623         .use_dma_rx     = 1,
 624 };
 625
 626 static struct platform_device at91sam9260_uart1_device = {
 627         .name           = "atmel_usart",
 628         .id             = 2,
 629         .dev            = {
 630                                 .platform_data  = &uart1_data,
 631                                 .coherent_dma_mask = 0xffffffff,
 632         },
 633         .resource       = uart1_resources,
 634         .num_resources  = ARRAY_SIZE(uart1_resources),
 635 };
 636
 637 static inline void configure_usart1_pins(void)
 638 {
 639         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 640         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 641         at91_set_A_periph(AT91_PIN_PB28, 0);            /* RTS1 */
 642         at91_set_A_periph(AT91_PIN_PB29, 0);            /* CTS1 */
 643 }
 644
 645 static struct resource uart2_resources[] = {
 646         [0] = {
 647                 .start  = AT91SAM9260_BASE_US2,
 648                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 649                 .flags  = IORESOURCE_MEM,
 650         },
 651         [1] = {
 652                 .start  = AT91SAM9260_ID_US2,
 653                 .end    = AT91SAM9260_ID_US2,
 654                 .flags  = IORESOURCE_IRQ,
 655         },
 656 };
 657
 658 static struct atmel_uart_data uart2_data = {
 659         .use_dma_tx     = 1,
 660         .use_dma_rx     = 1,
 661 };
 662
 663 static struct platform_device at91sam9260_uart2_device = {
 664         .name           = "atmel_usart",
 665         .id             = 3,
 666         .dev            = {
 667                                 .platform_data  = &uart2_data,
 668                                 .coherent_dma_mask = 0xffffffff,
 669         },
 670         .resource       = uart2_resources,
 671         .num_resources  = ARRAY_SIZE(uart2_resources),
 672 };
 673
 674 static inline void configure_usart2_pins(void)
 675 {
 676         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 677         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 678 }
 679
 680 static struct resource uart3_resources[] = {
 681         [0] = {
 682                 .start  = AT91SAM9260_BASE_US3,
 683                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 684                 .flags  = IORESOURCE_MEM,
 685         },
 686         [1] = {
 687                 .start  = AT91SAM9260_ID_US3,
 688                 .end    = AT91SAM9260_ID_US3,
 689                 .flags  = IORESOURCE_IRQ,
 690         },
 691 };
 692
 693 static struct atmel_uart_data uart3_data = {
 694         .use_dma_tx     = 1,
 695         .use_dma_rx     = 1,
 696 };
 697
 698 static struct platform_device at91sam9260_uart3_device = {
 699         .name           = "atmel_usart",
 700         .id             = 4,
 701         .dev            = {
 702                                 .platform_data  = &uart3_data,
 703                                 .coherent_dma_mask = 0xffffffff,
 704         },
 705         .resource       = uart3_resources,
 706         .num_resources  = ARRAY_SIZE(uart3_resources),
 707 };
 708
 709 static inline void configure_usart3_pins(void)
 710 {
 711         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 712         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 713 }
 714
 715 static struct resource uart4_resources[] = {
 716         [0] = {
 717                 .start  = AT91SAM9260_BASE_US4,
 718                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 719                 .flags  = IORESOURCE_MEM,
 720         },
 721         [1] = {
 722                 .start  = AT91SAM9260_ID_US4,
 723                 .end    = AT91SAM9260_ID_US4,
 724                 .flags  = IORESOURCE_IRQ,
 725         },
 726 };
 727
 728 static struct atmel_uart_data uart4_data = {
 729         .use_dma_tx     = 1,
 730         .use_dma_rx     = 1,
 731 };
 732
 733 static struct platform_device at91sam9260_uart4_device = {
 734         .name           = "atmel_usart",
 735         .id             = 5,
 736         .dev            = {
 737                                 .platform_data  = &uart4_data,
 738                                 .coherent_dma_mask = 0xffffffff,
 739         },
 740         .resource       = uart4_resources,
 741         .num_resources  = ARRAY_SIZE(uart4_resources),
 742 };
 743
 744 static inline void configure_usart4_pins(void)
 745 {
 746         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 747         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 748 }
 749
 750 static struct resource uart5_resources[] = {
 751         [0] = {
 752                 .start  = AT91SAM9260_BASE_US5,
 753                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 754                 .flags  = IORESOURCE_MEM,
 755         },
 756         [1] = {
 757                 .start  = AT91SAM9260_ID_US5,
 758                 .end    = AT91SAM9260_ID_US5,
 759                 .flags  = IORESOURCE_IRQ,
 760         },
 761 };
 762
 763 static struct atmel_uart_data uart5_data = {
 764         .use_dma_tx     = 1,
 765         .use_dma_rx     = 1,
 766 };
 767
 768 static struct platform_device at91sam9260_uart5_device = {
 769         .name           = "atmel_usart",
 770         .id             = 6,
 771         .dev            = {
 772                                 .platform_data  = &uart5_data,
 773                                 .coherent_dma_mask = 0xffffffff,
 774         },
 775         .resource       = uart5_resources,
 776         .num_resources  = ARRAY_SIZE(uart5_resources),
 777 };
 778
 779 static inline void configure_usart5_pins(void)
 780 {
 781         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 782         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 783 }
 784
 785 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
 786 struct platform_device *atmel_default_console_device;   /* the serial console device */
 787
 788 void __init at91_init_serial(struct at91_uart_config *config)
 789 {
 790         int i;
 791
 792         /* Fill in list of supported UARTs */
 793         for (i = 0; i < config->nr_tty; i++) {
 794                 switch (config->tty_map[i]) {
 795                         case 0:
 796                                 configure_usart0_pins();
 797                                 at91_uarts[i] = &at91sam9260_uart0_device;
 798                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 799                                 break;
 800                         case 1:
 801                                 configure_usart1_pins();
 802                                 at91_uarts[i] = &at91sam9260_uart1_device;
 803                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 804                                 break;
 805                         case 2:
 806                                 configure_usart2_pins();
 807                                 at91_uarts[i] = &at91sam9260_uart2_device;
 808                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 809                                 break;
 810                         case 3:
 811                                 configure_usart3_pins();
 812                                 at91_uarts[i] = &at91sam9260_uart3_device;
 813                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 814                                 break;
 815                         case 4:
 816                                 configure_usart4_pins();
 817                                 at91_uarts[i] = &at91sam9260_uart4_device;
 818                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
 819                                 break;
 820                         case 5:
 821                                 configure_usart5_pins();
 822                                 at91_uarts[i] = &at91sam9260_uart5_device;
 823                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
 824                                 break;
 825                         case 6:
 826                                 configure_dbgu_pins();
 827                                 at91_uarts[i] = &at91sam9260_dbgu_device;
 828                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
 829                                 break;
 830                         default:
 831                                 continue;
 832                 }
 833                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
 834         }
 835
 836         /* Set serial console device */
 837         if (config->console_tty < ATMEL_MAX_UART)
 838                 atmel_default_console_device = at91_uarts[config->console_tty];
 839         if (!atmel_default_console_device)
 840                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 841 }
 842
 843 void __init at91_add_device_serial(void)
 844 {
 845         int i;
 846
 847         for (i = 0; i < ATMEL_MAX_UART; i++) {
 848                 if (at91_uarts[i])
 849                         platform_device_register(at91_uarts[i]);
 850         }
 851 }
 852 #else
 853 void __init at91_init_serial(struct at91_uart_config *config) {}
 854 void __init at91_add_device_serial(void) {}
 855 #endif
 856
 857
 858 /* -------------------------------------------------------------------- */
 859 /*
 860  * These devices are always present and don't need any board-specific
 861  * setup.
 862  */
 863 static int __init at91_add_standard_devices(void)
 864 {
 865         return 0;
 866 }
 867
 868 arch_initcall(at91_add_standard_devices);