arch/arm/mach-at91rm9200/at91sam9260_devices.c

   1 /*
   2  * arch/arm/mach-at91rm9200/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
  22 #include "generic.h"
  23
  24 #define SZ_512  0x00000200
  25 #define SZ_256  0x00000100
  26 #define SZ_16   0x00000010
  27
  28 /* --------------------------------------------------------------------
  29  *  USB Host
  30  * -------------------------------------------------------------------- */
  31
  32 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  33 static u64 ohci_dmamask = 0xffffffffUL;
  34 static struct at91_usbh_data usbh_data;
  35
  36 static struct resource usbh_resources[] = {
  37         [0] = {
  38                 .start  = AT91SAM9260_UHP_BASE,
  39                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
  40                 .flags  = IORESOURCE_MEM,
  41         },
  42         [1] = {
  43                 .start  = AT91SAM9260_ID_UHP,
  44                 .end    = AT91SAM9260_ID_UHP,
  45                 .flags  = IORESOURCE_IRQ,
  46         },
  47 };
  48
  49 static struct platform_device at91_usbh_device = {
  50         .name           = "at91_ohci",
  51         .id             = -1,
  52         .dev            = {
  53                                 .dma_mask               = &ohci_dmamask,
  54                                 .coherent_dma_mask      = 0xffffffff,
  55                                 .platform_data          = &usbh_data,
  56         },
  57         .resource       = usbh_resources,
  58         .num_resources  = ARRAY_SIZE(usbh_resources),
  59 };
  60
  61 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  62 {
  63         if (!data)
  64                 return;
  65
  66         usbh_data = *data;
  67         platform_device_register(&at91_usbh_device);
  68 }
  69 #else
  70 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  71 #endif
  72
  73
  74 /* --------------------------------------------------------------------
  75  *  USB Device (Gadget)
  76  * -------------------------------------------------------------------- */
  77
  78 #ifdef CONFIG_USB_GADGET_AT91
  79 static struct at91_udc_data udc_data;
  80
  81 static struct resource udc_resources[] = {
  82         [0] = {
  83                 .start  = AT91SAM9260_BASE_UDP,
  84                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
  85                 .flags  = IORESOURCE_MEM,
  86         },
  87         [1] = {
  88                 .start  = AT91SAM9260_ID_UDP,
  89                 .end    = AT91SAM9260_ID_UDP,
  90                 .flags  = IORESOURCE_IRQ,
  91         },
  92 };
  93
  94 static struct platform_device at91_udc_device = {
  95         .name           = "at91_udc",
  96         .id             = -1,
  97         .dev            = {
  98                                 .platform_data          = &udc_data,
  99         },
 100         .resource       = udc_resources,
 101         .num_resources  = ARRAY_SIZE(udc_resources),
 102 };
 103
 104 void __init at91_add_device_udc(struct at91_udc_data *data)
 105 {
 106         if (!data)
 107                 return;
 108
 109         if (data->vbus_pin) {
 110                 at91_set_gpio_input(data->vbus_pin, 0);
 111                 at91_set_deglitch(data->vbus_pin, 1);
 112         }
 113
 114         /* Pullup pin is handled internally by USB device peripheral */
 115
 116         udc_data = *data;
 117         platform_device_register(&at91_udc_device);
 118 }
 119 #else
 120 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 121 #endif
 122
 123
 124 /* --------------------------------------------------------------------
 125  *  Ethernet
 126  * -------------------------------------------------------------------- */
 127
 128 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 129 static u64 eth_dmamask = 0xffffffffUL;
 130 static struct eth_platform_data eth_data;
 131
 132 static struct resource eth_resources[] = {
 133         [0] = {
 134                 .start  = AT91SAM9260_BASE_EMAC,
 135                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
 136                 .flags  = IORESOURCE_MEM,
 137         },
 138         [1] = {
 139                 .start  = AT91SAM9260_ID_EMAC,
 140                 .end    = AT91SAM9260_ID_EMAC,
 141                 .flags  = IORESOURCE_IRQ,
 142         },
 143 };
 144
 145 static struct platform_device at91sam9260_eth_device = {
 146         .name           = "macb",
 147         .id             = -1,
 148         .dev            = {
 149                                 .dma_mask               = &eth_dmamask,
 150                                 .coherent_dma_mask      = 0xffffffff,
 151                                 .platform_data          = &eth_data,
 152         },
 153         .resource       = eth_resources,
 154         .num_resources  = ARRAY_SIZE(eth_resources),
 155 };
 156
 157 void __init at91_add_device_eth(struct eth_platform_data *data)
 158 {
 159         if (!data)
 160                 return;
 161
 162         if (data->phy_irq_pin) {
 163                 at91_set_gpio_input(data->phy_irq_pin, 0);
 164                 at91_set_deglitch(data->phy_irq_pin, 1);
 165         }
 166
 167         /* Pins used for MII and RMII */
 168         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
 169         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 170         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
 171         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
 172         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
 173         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
 174         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
 175         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
 176         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
 177         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
 178
 179         if (!data->is_rmii) {
 180                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
 181                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
 182                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
 183                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
 184                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
 185                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
 186                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
 187                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
 188         }
 189
 190         eth_data = *data;
 191         platform_device_register(&at91sam9260_eth_device);
 192 }
 193 #else
 194 void __init at91_add_device_eth(struct eth_platform_data *data) {}
 195 #endif
 196
 197
 198 /* --------------------------------------------------------------------
 199  *  MMC / SD
 200  * -------------------------------------------------------------------- */
 201
 202 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 203 static u64 mmc_dmamask = 0xffffffffUL;
 204 static struct at91_mmc_data mmc_data;
 205
 206 static struct resource mmc_resources[] = {
 207         [0] = {
 208                 .start  = AT91SAM9260_BASE_MCI,
 209                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 210                 .flags  = IORESOURCE_MEM,
 211         },
 212         [1] = {
 213                 .start  = AT91SAM9260_ID_MCI,
 214                 .end    = AT91SAM9260_ID_MCI,
 215                 .flags  = IORESOURCE_IRQ,
 216         },
 217 };
 218
 219 static struct platform_device at91sam9260_mmc_device = {
 220         .name           = "at91_mci",
 221         .id             = -1,
 222         .dev            = {
 223                                 .dma_mask               = &mmc_dmamask,
 224                                 .coherent_dma_mask      = 0xffffffff,
 225                                 .platform_data          = &mmc_data,
 226         },
 227         .resource       = mmc_resources,
 228         .num_resources  = ARRAY_SIZE(mmc_resources),
 229 };
 230
 231 void __init at91_add_device_mmc(struct at91_mmc_data *data)
 232 {
 233         if (!data)
 234                 return;
 235
 236         /* input/irq */
 237         if (data->det_pin) {
 238                 at91_set_gpio_input(data->det_pin, 1);
 239                 at91_set_deglitch(data->det_pin, 1);
 240         }
 241         if (data->wp_pin)
 242                 at91_set_gpio_input(data->wp_pin, 1);
 243         if (data->vcc_pin)
 244                 at91_set_gpio_output(data->vcc_pin, 0);
 245
 246         /* CLK */
 247         at91_set_A_periph(AT91_PIN_PA8, 0);
 248
 249         if (data->slot_b) {
 250                 /* CMD */
 251                 at91_set_B_periph(AT91_PIN_PA1, 1);
 252
 253                 /* DAT0, maybe DAT1..DAT3 */
 254                 at91_set_B_periph(AT91_PIN_PA0, 1);
 255                 if (data->wire4) {
 256                         at91_set_B_periph(AT91_PIN_PA5, 1);
 257                         at91_set_B_periph(AT91_PIN_PA4, 1);
 258                         at91_set_B_periph(AT91_PIN_PA3, 1);
 259                 }
 260         } else {
 261                 /* CMD */
 262                 at91_set_A_periph(AT91_PIN_PA7, 1);
 263
 264                 /* DAT0, maybe DAT1..DAT3 */
 265                 at91_set_A_periph(AT91_PIN_PA6, 1);
 266                 if (data->wire4) {
 267                         at91_set_A_periph(AT91_PIN_PA9, 1);
 268                         at91_set_A_periph(AT91_PIN_PA10, 1);
 269                         at91_set_A_periph(AT91_PIN_PA11, 1);
 270                 }
 271         }
 272
 273         mmc_data = *data;
 274         platform_device_register(&at91sam9260_mmc_device);
 275 }
 276 #else
 277 void __init at91_add_device_mmc(struct at91_mmc_data *data) {}
 278 #endif
 279
 280
 281 /* --------------------------------------------------------------------
 282  *  NAND / SmartMedia
 283  * -------------------------------------------------------------------- */
 284
 285 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
 286 static struct at91_nand_data nand_data;
 287
 288 #define NAND_BASE       AT91_CHIPSELECT_3
 289
 290 static struct resource nand_resources[] = {
 291         {
 292                 .start  = NAND_BASE,
 293                 .end    = NAND_BASE + SZ_8M - 1,
 294                 .flags  = IORESOURCE_MEM,
 295         }
 296 };
 297
 298 static struct platform_device at91sam9260_nand_device = {
 299         .name           = "at91_nand",
 300         .id             = -1,
 301         .dev            = {
 302                                 .platform_data  = &nand_data,
 303         },
 304         .resource       = nand_resources,
 305         .num_resources  = ARRAY_SIZE(nand_resources),
 306 };
 307
 308 void __init at91_add_device_nand(struct at91_nand_data *data)
 309 {
 310         unsigned long csa, mode;
 311
 312         if (!data)
 313                 return;
 314
 315         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 316         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
 317
 318         /* set the bus interface characteristics */
 319         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 320                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 321
 322         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5)
 323                         | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5));
 324
 325         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7));
 326
 327         if (data->bus_width_16)
 328                 mode = AT91_SMC_DBW_16;
 329         else
 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));
 332
 333         /* enable pin */
 334         if (data->enable_pin)
 335                 at91_set_gpio_output(data->enable_pin, 1);
 336
 337         /* ready/busy pin */
 338         if (data->rdy_pin)
 339                 at91_set_gpio_input(data->rdy_pin, 1);
 340
 341         /* card detect pin */
 342         if (data->det_pin)
 343                 at91_set_gpio_input(data->det_pin, 1);
 344
 345         nand_data = *data;
 346         platform_device_register(&at91sam9260_nand_device);
 347 }
 348 #else
 349 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 350 #endif
 351
 352
 353 /* --------------------------------------------------------------------
 354  *  TWI (i2c)
 355  * -------------------------------------------------------------------- */
 356
 357 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 358
 359 static struct resource twi_resources[] = {
 360         [0] = {
 361                 .start  = AT91SAM9260_BASE_TWI,
 362                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 363                 .flags  = IORESOURCE_MEM,
 364         },
 365         [1] = {
 366                 .start  = AT91SAM9260_ID_TWI,
 367                 .end    = AT91SAM9260_ID_TWI,
 368                 .flags  = IORESOURCE_IRQ,
 369         },
 370 };
 371
 372 static struct platform_device at91sam9260_twi_device = {
 373         .name           = "at91_i2c",
 374         .id             = -1,
 375         .resource       = twi_resources,
 376         .num_resources  = ARRAY_SIZE(twi_resources),
 377 };
 378
 379 void __init at91_add_device_i2c(void)
 380 {
 381         /* pins used for TWI interface */
 382         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 383         at91_set_multi_drive(AT91_PIN_PA23, 1);
 384
 385         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 386         at91_set_multi_drive(AT91_PIN_PA24, 1);
 387
 388         platform_device_register(&at91sam9260_twi_device);
 389 }
 390 #else
 391 void __init at91_add_device_i2c(void) {}
 392 #endif
 393
 394
 395 /* --------------------------------------------------------------------
 396  *  SPI
 397  * -------------------------------------------------------------------- */
 398
 399 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 400 static u64 spi_dmamask = 0xffffffffUL;
 401
 402 static struct resource spi0_resources[] = {
 403         [0] = {
 404                 .start  = AT91SAM9260_BASE_SPI0,
 405                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 406                 .flags  = IORESOURCE_MEM,
 407         },
 408         [1] = {
 409                 .start  = AT91SAM9260_ID_SPI0,
 410                 .end    = AT91SAM9260_ID_SPI0,
 411                 .flags  = IORESOURCE_IRQ,
 412         },
 413 };
 414
 415 static struct platform_device at91sam9260_spi0_device = {
 416         .name           = "atmel_spi",
 417         .id             = 0,
 418         .dev            = {
 419                                 .dma_mask               = &spi_dmamask,
 420                                 .coherent_dma_mask      = 0xffffffff,
 421         },
 422         .resource       = spi0_resources,
 423         .num_resources  = ARRAY_SIZE(spi0_resources),
 424 };
 425
 426 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 427
 428 static struct resource spi1_resources[] = {
 429         [0] = {
 430                 .start  = AT91SAM9260_BASE_SPI1,
 431                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 432                 .flags  = IORESOURCE_MEM,
 433         },
 434         [1] = {
 435                 .start  = AT91SAM9260_ID_SPI1,
 436                 .end    = AT91SAM9260_ID_SPI1,
 437                 .flags  = IORESOURCE_IRQ,
 438         },
 439 };
 440
 441 static struct platform_device at91sam9260_spi1_device = {
 442         .name           = "atmel_spi",
 443         .id             = 1,
 444         .dev            = {
 445                                 .dma_mask               = &spi_dmamask,
 446                                 .coherent_dma_mask      = 0xffffffff,
 447         },
 448         .resource       = spi1_resources,
 449         .num_resources  = ARRAY_SIZE(spi1_resources),
 450 };
 451
 452 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 453
 454 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 455 {
 456         int i;
 457         unsigned long cs_pin;
 458         short enable_spi0 = 0;
 459         short enable_spi1 = 0;
 460
 461         /* Choose SPI chip-selects */
 462         for (i = 0; i < nr_devices; i++) {
 463                 if (devices[i].controller_data)
 464                         cs_pin = (unsigned long) devices[i].controller_data;
 465                 else if (devices[i].bus_num == 0)
 466                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 467                 else
 468                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 469
 470                 if (devices[i].bus_num == 0)
 471                         enable_spi0 = 1;
 472                 else
 473                         enable_spi1 = 1;
 474
 475                 /* enable chip-select pin */
 476                 at91_set_gpio_output(cs_pin, 1);
 477
 478                 /* pass chip-select pin to driver */
 479                 devices[i].controller_data = (void *) cs_pin;
 480         }
 481
 482         spi_register_board_info(devices, nr_devices);
 483
 484         /* Configure SPI bus(es) */
 485         if (enable_spi0) {
 486                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 487                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 488                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 489
 490                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 491                 platform_device_register(&at91sam9260_spi0_device);
 492         }
 493         if (enable_spi1) {
 494                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 495                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 496                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 497
 498                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 499                 platform_device_register(&at91sam9260_spi1_device);
 500         }
 501 }
 502 #else
 503 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 504 #endif
 505
 506
 507 /* --------------------------------------------------------------------
 508  *  LEDs
 509  * -------------------------------------------------------------------- */
 510
 511 #if defined(CONFIG_LEDS)
 512 u8 at91_leds_cpu;
 513 u8 at91_leds_timer;
 514
 515 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
 516 {
 517         at91_leds_cpu   = cpu_led;
 518         at91_leds_timer = timer_led;
 519 }
 520 #else
 521 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 522 #endif
 523
 524
 525 /* --------------------------------------------------------------------
 526  *  UART
 527  * -------------------------------------------------------------------- */
 528 #if defined(CONFIG_SERIAL_ATMEL)
 529 static struct resource dbgu_resources[] = {
 530         [0] = {
 531                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 532                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 533                 .flags  = IORESOURCE_MEM,
 534         },
 535         [1] = {
 536                 .start  = AT91_ID_SYS,
 537                 .end    = AT91_ID_SYS,
 538                 .flags  = IORESOURCE_IRQ,
 539         },
 540 };
 541
 542 static struct atmel_uart_data dbgu_data = {
 543         .use_dma_tx     = 0,
 544         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 545         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 546 };
 547
 548 static struct platform_device at91sam9260_dbgu_device = {
 549         .name           = "atmel_usart",
 550         .id             = 0,
 551         .dev            = {
 552                                 .platform_data  = &dbgu_data,
 553                                 .coherent_dma_mask = 0xffffffff,
 554         },
 555         .resource       = dbgu_resources,
 556         .num_resources  = ARRAY_SIZE(dbgu_resources),
 557 };
 558
 559 static inline void configure_dbgu_pins(void)
 560 {
 561         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 562         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 563 }
 564
 565 static struct resource uart0_resources[] = {
 566         [0] = {
 567                 .start  = AT91SAM9260_BASE_US0,
 568                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 569                 .flags  = IORESOURCE_MEM,
 570         },
 571         [1] = {
 572                 .start  = AT91SAM9260_ID_US0,
 573                 .end    = AT91SAM9260_ID_US0,
 574                 .flags  = IORESOURCE_IRQ,
 575         },
 576 };
 577
 578 static struct atmel_uart_data uart0_data = {
 579         .use_dma_tx     = 1,
 580         .use_dma_rx     = 1,
 581 };
 582
 583 static struct platform_device at91sam9260_uart0_device = {
 584         .name           = "atmel_usart",
 585         .id             = 1,
 586         .dev            = {
 587                                 .platform_data  = &uart0_data,
 588                                 .coherent_dma_mask = 0xffffffff,
 589         },
 590         .resource       = uart0_resources,
 591         .num_resources  = ARRAY_SIZE(uart0_resources),
 592 };
 593
 594 static inline void configure_usart0_pins(void)
 595 {
 596         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 597         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 598         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS0 */
 599         at91_set_A_periph(AT91_PIN_PB27, 0);            /* CTS0 */
 600         at91_set_A_periph(AT91_PIN_PB24, 0);            /* DTR0 */
 601         at91_set_A_periph(AT91_PIN_PB22, 0);            /* DSR0 */
 602         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD0 */
 603         at91_set_A_periph(AT91_PIN_PB25, 0);            /* RI0 */
 604 }
 605
 606 static struct resource uart1_resources[] = {
 607         [0] = {
 608                 .start  = AT91SAM9260_BASE_US1,
 609                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 610                 .flags  = IORESOURCE_MEM,
 611         },
 612         [1] = {
 613                 .start  = AT91SAM9260_ID_US1,
 614                 .end    = AT91SAM9260_ID_US1,
 615                 .flags  = IORESOURCE_IRQ,
 616         },
 617 };
 618
 619 static struct atmel_uart_data uart1_data = {
 620         .use_dma_tx     = 1,
 621         .use_dma_rx     = 1,
 622 };
 623
 624 static struct platform_device at91sam9260_uart1_device = {
 625         .name           = "atmel_usart",
 626         .id             = 2,
 627         .dev            = {
 628                                 .platform_data  = &uart1_data,
 629                                 .coherent_dma_mask = 0xffffffff,
 630         },
 631         .resource       = uart1_resources,
 632         .num_resources  = ARRAY_SIZE(uart1_resources),
 633 };
 634
 635 static inline void configure_usart1_pins(void)
 636 {
 637         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 638         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 639         at91_set_A_periph(AT91_PIN_PB28, 0);            /* RTS1 */
 640         at91_set_A_periph(AT91_PIN_PB29, 0);            /* CTS1 */
 641 }
 642
 643 static struct resource uart2_resources[] = {
 644         [0] = {
 645                 .start  = AT91SAM9260_BASE_US2,
 646                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 647                 .flags  = IORESOURCE_MEM,
 648         },
 649         [1] = {
 650                 .start  = AT91SAM9260_ID_US2,
 651                 .end    = AT91SAM9260_ID_US2,
 652                 .flags  = IORESOURCE_IRQ,
 653         },
 654 };
 655
 656 static struct atmel_uart_data uart2_data = {
 657         .use_dma_tx     = 1,
 658         .use_dma_rx     = 1,
 659 };
 660
 661 static struct platform_device at91sam9260_uart2_device = {
 662         .name           = "atmel_usart",
 663         .id             = 3,
 664         .dev            = {
 665                                 .platform_data  = &uart2_data,
 666                                 .coherent_dma_mask = 0xffffffff,
 667         },
 668         .resource       = uart2_resources,
 669         .num_resources  = ARRAY_SIZE(uart2_resources),
 670 };
 671
 672 static inline void configure_usart2_pins(void)
 673 {
 674         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 675         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 676 }
 677
 678 static struct resource uart3_resources[] = {
 679         [0] = {
 680                 .start  = AT91SAM9260_BASE_US3,
 681                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 682                 .flags  = IORESOURCE_MEM,
 683         },
 684         [1] = {
 685                 .start  = AT91SAM9260_ID_US3,
 686                 .end    = AT91SAM9260_ID_US3,
 687                 .flags  = IORESOURCE_IRQ,
 688         },
 689 };
 690
 691 static struct atmel_uart_data uart3_data = {
 692         .use_dma_tx     = 1,
 693         .use_dma_rx     = 1,
 694 };
 695
 696 static struct platform_device at91sam9260_uart3_device = {
 697         .name           = "atmel_usart",
 698         .id             = 4,
 699         .dev            = {
 700                                 .platform_data  = &uart3_data,
 701                                 .coherent_dma_mask = 0xffffffff,
 702         },
 703         .resource       = uart3_resources,
 704         .num_resources  = ARRAY_SIZE(uart3_resources),
 705 };
 706
 707 static inline void configure_usart3_pins(void)
 708 {
 709         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 710         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 711 }
 712
 713 static struct resource uart4_resources[] = {
 714         [0] = {
 715                 .start  = AT91SAM9260_BASE_US4,
 716                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 717                 .flags  = IORESOURCE_MEM,
 718         },
 719         [1] = {
 720                 .start  = AT91SAM9260_ID_US4,
 721                 .end    = AT91SAM9260_ID_US4,
 722                 .flags  = IORESOURCE_IRQ,
 723         },
 724 };
 725
 726 static struct atmel_uart_data uart4_data = {
 727         .use_dma_tx     = 1,
 728         .use_dma_rx     = 1,
 729 };
 730
 731 static struct platform_device at91sam9260_uart4_device = {
 732         .name           = "atmel_usart",
 733         .id             = 5,
 734         .dev            = {
 735                                 .platform_data  = &uart4_data,
 736                                 .coherent_dma_mask = 0xffffffff,
 737         },
 738         .resource       = uart4_resources,
 739         .num_resources  = ARRAY_SIZE(uart4_resources),
 740 };
 741
 742 static inline void configure_usart4_pins(void)
 743 {
 744         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 745         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 746 }
 747
 748 static struct resource uart5_resources[] = {
 749         [0] = {
 750                 .start  = AT91SAM9260_BASE_US5,
 751                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 752                 .flags  = IORESOURCE_MEM,
 753         },
 754         [1] = {
 755                 .start  = AT91SAM9260_ID_US5,
 756                 .end    = AT91SAM9260_ID_US5,
 757                 .flags  = IORESOURCE_IRQ,
 758         },
 759 };
 760
 761 static struct atmel_uart_data uart5_data = {
 762         .use_dma_tx     = 1,
 763         .use_dma_rx     = 1,
 764 };
 765
 766 static struct platform_device at91sam9260_uart5_device = {
 767         .name           = "atmel_usart",
 768         .id             = 6,
 769         .dev            = {
 770                                 .platform_data  = &uart5_data,
 771                                 .coherent_dma_mask = 0xffffffff,
 772         },
 773         .resource       = uart5_resources,
 774         .num_resources  = ARRAY_SIZE(uart5_resources),
 775 };
 776
 777 static inline void configure_usart5_pins(void)
 778 {
 779         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 780         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 781 }
 782
 783 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
 784 struct platform_device *atmel_default_console_device;   /* the serial console device */
 785
 786 void __init at91_init_serial(struct at91_uart_config *config)
 787 {
 788         int i;
 789
 790         /* Fill in list of supported UARTs */
 791         for (i = 0; i < config->nr_tty; i++) {
 792                 switch (config->tty_map[i]) {
 793                         case 0:
 794                                 configure_usart0_pins();
 795                                 at91_uarts[i] = &at91sam9260_uart0_device;
 796                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 797                                 break;
 798                         case 1:
 799                                 configure_usart1_pins();
 800                                 at91_uarts[i] = &at91sam9260_uart1_device;
 801                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 802                                 break;
 803                         case 2:
 804                                 configure_usart2_pins();
 805                                 at91_uarts[i] = &at91sam9260_uart2_device;
 806                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 807                                 break;
 808                         case 3:
 809                                 configure_usart3_pins();
 810                                 at91_uarts[i] = &at91sam9260_uart3_device;
 811                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 812                                 break;
 813                         case 4:
 814                                 configure_usart4_pins();
 815                                 at91_uarts[i] = &at91sam9260_uart4_device;
 816                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
 817                                 break;
 818                         case 5:
 819                                 configure_usart5_pins();
 820                                 at91_uarts[i] = &at91sam9260_uart5_device;
 821                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
 822                                 break;
 823                         case 6:
 824                                 configure_dbgu_pins();
 825                                 at91_uarts[i] = &at91sam9260_dbgu_device;
 826                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
 827                                 break;
 828                         default:
 829                                 continue;
 830                 }
 831                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
 832         }
 833
 834         /* Set serial console device */
 835         if (config->console_tty < ATMEL_MAX_UART)
 836                 atmel_default_console_device = at91_uarts[config->console_tty];
 837         if (!atmel_default_console_device)
 838                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 839 }
 840
 841 void __init at91_add_device_serial(void)
 842 {
 843         int i;
 844
 845         for (i = 0; i < ATMEL_MAX_UART; i++) {
 846                 if (at91_uarts[i])
 847                         platform_device_register(at91_uarts[i]);
 848         }
 849 }
 850 #else
 851 void __init at91_init_serial(struct at91_uart_config *config) {}
 852 void __init at91_add_device_serial(void) {}
 853 #endif
 854
 855
 856 /* -------------------------------------------------------------------- */
 857 /*
 858  * These devices are always present and don't need any board-specific
 859  * setup.
 860  */
 861 static int __init at91_add_standard_devices(void)
 862 {
 863         return 0;
 864 }
 865
 866 arch_initcall(at91_add_standard_devices);