arch/arm/mach-at91/at91sam9263_devices.c

   1 /*
   2  * arch/arm/mach-at91/at91sam9263_devices.c
   3  *
   4  *  Copyright (C) 2007 Atmel Corporation.
   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/at91sam9263.h>
  20 #include <asm/arch/at91sam926x_mc.h>
  21 #include <asm/arch/at91sam9263_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  = AT91SAM9263_UHP_BASE,
  40                 .end    = AT91SAM9263_UHP_BASE + SZ_1M - 1,
  41                 .flags  = IORESOURCE_MEM,
  42         },
  43         [1] = {
  44                 .start  = AT91SAM9263_ID_UHP,
  45                 .end    = AT91SAM9263_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         int i;
  65
  66         if (!data)
  67                 return;
  68
  69         /* Enable VBus control for UHP ports */
  70         for (i = 0; i < data->ports; i++) {
  71                 if (data->vbus_pin[i])
  72                         at91_set_gpio_output(data->vbus_pin[i], 0);
  73         }
  74
  75         usbh_data = *data;
  76         platform_device_register(&at91_usbh_device);
  77 }
  78 #else
  79 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  80 #endif
  81
  82
  83 /* --------------------------------------------------------------------
  84  *  USB Device (Gadget)
  85  * -------------------------------------------------------------------- */
  86
  87 #ifdef CONFIG_USB_GADGET_AT91
  88 static struct at91_udc_data udc_data;
  89
  90 static struct resource udc_resources[] = {
  91         [0] = {
  92                 .start  = AT91SAM9263_BASE_UDP,
  93                 .end    = AT91SAM9263_BASE_UDP + SZ_16K - 1,
  94                 .flags  = IORESOURCE_MEM,
  95         },
  96         [1] = {
  97                 .start  = AT91SAM9263_ID_UDP,
  98                 .end    = AT91SAM9263_ID_UDP,
  99                 .flags  = IORESOURCE_IRQ,
 100         },
 101 };
 102
 103 static struct platform_device at91_udc_device = {
 104         .name           = "at91_udc",
 105         .id             = -1,
 106         .dev            = {
 107                                 .platform_data          = &udc_data,
 108         },
 109         .resource       = udc_resources,
 110         .num_resources  = ARRAY_SIZE(udc_resources),
 111 };
 112
 113 void __init at91_add_device_udc(struct at91_udc_data *data)
 114 {
 115         if (!data)
 116                 return;
 117
 118         if (data->vbus_pin) {
 119                 at91_set_gpio_input(data->vbus_pin, 0);
 120                 at91_set_deglitch(data->vbus_pin, 1);
 121         }
 122
 123         /* Pullup pin is handled internally by USB device peripheral */
 124
 125         udc_data = *data;
 126         platform_device_register(&at91_udc_device);
 127 }
 128 #else
 129 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 130 #endif
 131
 132
 133 /* --------------------------------------------------------------------
 134  *  Ethernet
 135  * -------------------------------------------------------------------- */
 136
 137 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 138 static u64 eth_dmamask = 0xffffffffUL;
 139 static struct at91_eth_data eth_data;
 140
 141 static struct resource eth_resources[] = {
 142         [0] = {
 143                 .start  = AT91SAM9263_BASE_EMAC,
 144                 .end    = AT91SAM9263_BASE_EMAC + SZ_16K - 1,
 145                 .flags  = IORESOURCE_MEM,
 146         },
 147         [1] = {
 148                 .start  = AT91SAM9263_ID_EMAC,
 149                 .end    = AT91SAM9263_ID_EMAC,
 150                 .flags  = IORESOURCE_IRQ,
 151         },
 152 };
 153
 154 static struct platform_device at91sam9263_eth_device = {
 155         .name           = "macb",
 156         .id             = -1,
 157         .dev            = {
 158                                 .dma_mask               = &eth_dmamask,
 159                                 .coherent_dma_mask      = 0xffffffff,
 160                                 .platform_data          = &eth_data,
 161         },
 162         .resource       = eth_resources,
 163         .num_resources  = ARRAY_SIZE(eth_resources),
 164 };
 165
 166 void __init at91_add_device_eth(struct at91_eth_data *data)
 167 {
 168         if (!data)
 169                 return;
 170
 171         if (data->phy_irq_pin) {
 172                 at91_set_gpio_input(data->phy_irq_pin, 0);
 173                 at91_set_deglitch(data->phy_irq_pin, 1);
 174         }
 175
 176         /* Pins used for MII and RMII */
 177         at91_set_A_periph(AT91_PIN_PE21, 0);    /* ETXCK_EREFCK */
 178         at91_set_B_periph(AT91_PIN_PC25, 0);    /* ERXDV */
 179         at91_set_A_periph(AT91_PIN_PE25, 0);    /* ERX0 */
 180         at91_set_A_periph(AT91_PIN_PE26, 0);    /* ERX1 */
 181         at91_set_A_periph(AT91_PIN_PE27, 0);    /* ERXER */
 182         at91_set_A_periph(AT91_PIN_PE28, 0);    /* ETXEN */
 183         at91_set_A_periph(AT91_PIN_PE23, 0);    /* ETX0 */
 184         at91_set_A_periph(AT91_PIN_PE24, 0);    /* ETX1 */
 185         at91_set_A_periph(AT91_PIN_PE30, 0);    /* EMDIO */
 186         at91_set_A_periph(AT91_PIN_PE29, 0);    /* EMDC */
 187
 188         if (!data->is_rmii) {
 189                 at91_set_A_periph(AT91_PIN_PE22, 0);    /* ECRS */
 190                 at91_set_B_periph(AT91_PIN_PC26, 0);    /* ECOL */
 191                 at91_set_B_periph(AT91_PIN_PC22, 0);    /* ERX2 */
 192                 at91_set_B_periph(AT91_PIN_PC23, 0);    /* ERX3 */
 193                 at91_set_B_periph(AT91_PIN_PC27, 0);    /* ERXCK */
 194                 at91_set_B_periph(AT91_PIN_PC20, 0);    /* ETX2 */
 195                 at91_set_B_periph(AT91_PIN_PC21, 0);    /* ETX3 */
 196                 at91_set_B_periph(AT91_PIN_PC24, 0);    /* ETXER */
 197         }
 198
 199         eth_data = *data;
 200         platform_device_register(&at91sam9263_eth_device);
 201 }
 202 #else
 203 void __init at91_add_device_eth(struct at91_eth_data *data) {}
 204 #endif
 205
 206
 207 /* --------------------------------------------------------------------
 208  *  MMC / SD
 209  * -------------------------------------------------------------------- */
 210
 211 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 212 static u64 mmc_dmamask = 0xffffffffUL;
 213 static struct at91_mmc_data mmc0_data, mmc1_data;
 214
 215 static struct resource mmc0_resources[] = {
 216         [0] = {
 217                 .start  = AT91SAM9263_BASE_MCI0,
 218                 .end    = AT91SAM9263_BASE_MCI0 + SZ_16K - 1,
 219                 .flags  = IORESOURCE_MEM,
 220         },
 221         [1] = {
 222                 .start  = AT91SAM9263_ID_MCI0,
 223                 .end    = AT91SAM9263_ID_MCI0,
 224                 .flags  = IORESOURCE_IRQ,
 225         },
 226 };
 227
 228 static struct platform_device at91sam9263_mmc0_device = {
 229         .name           = "at91_mci",
 230         .id             = 0,
 231         .dev            = {
 232                                 .dma_mask               = &mmc_dmamask,
 233                                 .coherent_dma_mask      = 0xffffffff,
 234                                 .platform_data          = &mmc0_data,
 235         },
 236         .resource       = mmc0_resources,
 237         .num_resources  = ARRAY_SIZE(mmc0_resources),
 238 };
 239
 240 static struct resource mmc1_resources[] = {
 241         [0] = {
 242                 .start  = AT91SAM9263_BASE_MCI1,
 243                 .end    = AT91SAM9263_BASE_MCI1 + SZ_16K - 1,
 244                 .flags  = IORESOURCE_MEM,
 245         },
 246         [1] = {
 247                 .start  = AT91SAM9263_ID_MCI1,
 248                 .end    = AT91SAM9263_ID_MCI1,
 249                 .flags  = IORESOURCE_IRQ,
 250         },
 251 };
 252
 253 static struct platform_device at91sam9263_mmc1_device = {
 254         .name           = "at91_mci",
 255         .id             = 1,
 256         .dev            = {
 257                                 .dma_mask               = &mmc_dmamask,
 258                                 .coherent_dma_mask      = 0xffffffff,
 259                                 .platform_data          = &mmc1_data,
 260         },
 261         .resource       = mmc1_resources,
 262         .num_resources  = ARRAY_SIZE(mmc1_resources),
 263 };
 264
 265 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 266 {
 267         if (!data)
 268                 return;
 269
 270         /* input/irq */
 271         if (data->det_pin) {
 272                 at91_set_gpio_input(data->det_pin, 1);
 273                 at91_set_deglitch(data->det_pin, 1);
 274         }
 275         if (data->wp_pin)
 276                 at91_set_gpio_input(data->wp_pin, 1);
 277         if (data->vcc_pin)
 278                 at91_set_gpio_output(data->vcc_pin, 0);
 279
 280         if (mmc_id == 0) {              /* MCI0 */
 281                 /* CLK */
 282                 at91_set_A_periph(AT91_PIN_PA12, 0);
 283
 284                 if (data->slot_b) {
 285                         /* CMD */
 286                         at91_set_A_periph(AT91_PIN_PA16, 1);
 287
 288                         /* DAT0, maybe DAT1..DAT3 */
 289                         at91_set_A_periph(AT91_PIN_PA17, 1);
 290                         if (data->wire4) {
 291                                 at91_set_A_periph(AT91_PIN_PA18, 1);
 292                                 at91_set_A_periph(AT91_PIN_PA19, 1);
 293                                 at91_set_A_periph(AT91_PIN_PA20, 1);
 294                         }
 295                 } else {
 296                         /* CMD */
 297                         at91_set_A_periph(AT91_PIN_PA1, 1);
 298
 299                         /* DAT0, maybe DAT1..DAT3 */
 300                         at91_set_A_periph(AT91_PIN_PA0, 1);
 301                         if (data->wire4) {
 302                                 at91_set_A_periph(AT91_PIN_PA3, 1);
 303                                 at91_set_A_periph(AT91_PIN_PA4, 1);
 304                                 at91_set_A_periph(AT91_PIN_PA5, 1);
 305                         }
 306                 }
 307
 308                 mmc0_data = *data;
 309                 at91_clock_associate("mci0_clk", &at91sam9263_mmc1_device.dev, "mci_clk");
 310                 platform_device_register(&at91sam9263_mmc0_device);
 311         } else {                        /* MCI1 */
 312                 /* CLK */
 313                 at91_set_A_periph(AT91_PIN_PA6, 0);
 314
 315                 if (data->slot_b) {
 316                         /* CMD */
 317                         at91_set_A_periph(AT91_PIN_PA21, 1);
 318
 319                         /* DAT0, maybe DAT1..DAT3 */
 320                         at91_set_A_periph(AT91_PIN_PA22, 1);
 321                         if (data->wire4) {
 322                                 at91_set_A_periph(AT91_PIN_PA23, 1);
 323                                 at91_set_A_periph(AT91_PIN_PA24, 1);
 324                                 at91_set_A_periph(AT91_PIN_PA25, 1);
 325                         }
 326                 } else {
 327                         /* CMD */
 328                         at91_set_A_periph(AT91_PIN_PA7, 1);
 329
 330                         /* DAT0, maybe DAT1..DAT3 */
 331                         at91_set_A_periph(AT91_PIN_PA8, 1);
 332                         if (data->wire4) {
 333                                 at91_set_A_periph(AT91_PIN_PA9, 1);
 334                                 at91_set_A_periph(AT91_PIN_PA10, 1);
 335                                 at91_set_A_periph(AT91_PIN_PA11, 1);
 336                         }
 337                 }
 338
 339                 mmc1_data = *data;
 340                 at91_clock_associate("mci1_clk", &at91sam9263_mmc1_device.dev, "mci_clk");
 341                 platform_device_register(&at91sam9263_mmc1_device);
 342         }
 343 }
 344 #else
 345 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 346 #endif
 347
 348
 349 /* --------------------------------------------------------------------
 350  *  NAND / SmartMedia
 351  * -------------------------------------------------------------------- */
 352
 353 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
 354 static struct at91_nand_data nand_data;
 355
 356 #define NAND_BASE       AT91_CHIPSELECT_3
 357
 358 static struct resource nand_resources[] = {
 359         {
 360                 .start  = NAND_BASE,
 361                 .end    = NAND_BASE + SZ_256M - 1,
 362                 .flags  = IORESOURCE_MEM,
 363         }
 364 };
 365
 366 static struct platform_device at91sam9263_nand_device = {
 367         .name           = "at91_nand",
 368         .id             = -1,
 369         .dev            = {
 370                                 .platform_data  = &nand_data,
 371         },
 372         .resource       = nand_resources,
 373         .num_resources  = ARRAY_SIZE(nand_resources),
 374 };
 375
 376 void __init at91_add_device_nand(struct at91_nand_data *data)
 377 {
 378         unsigned long csa, mode;
 379
 380         if (!data)
 381                 return;
 382
 383         csa = at91_sys_read(AT91_MATRIX_EBI0CSA);
 384         at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC);
 385
 386         /* set the bus interface characteristics */
 387         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 388                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 389
 390         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
 391                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
 392
 393         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
 394
 395         if (data->bus_width_16)
 396                 mode = AT91_SMC_DBW_16;
 397         else
 398                 mode = AT91_SMC_DBW_8;
 399         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
 400
 401         /* enable pin */
 402         if (data->enable_pin)
 403                 at91_set_gpio_output(data->enable_pin, 1);
 404
 405         /* ready/busy pin */
 406         if (data->rdy_pin)
 407                 at91_set_gpio_input(data->rdy_pin, 1);
 408
 409         /* card detect pin */
 410         if (data->det_pin)
 411                 at91_set_gpio_input(data->det_pin, 1);
 412
 413         nand_data = *data;
 414         platform_device_register(&at91sam9263_nand_device);
 415 }
 416 #else
 417 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 418 #endif
 419
 420
 421 /* --------------------------------------------------------------------
 422  *  TWI (i2c)
 423  * -------------------------------------------------------------------- */
 424
 425 #if defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 426
 427 static struct resource twi_resources[] = {
 428         [0] = {
 429                 .start  = AT91SAM9263_BASE_TWI,
 430                 .end    = AT91SAM9263_BASE_TWI + SZ_16K - 1,
 431                 .flags  = IORESOURCE_MEM,
 432         },
 433         [1] = {
 434                 .start  = AT91SAM9263_ID_TWI,
 435                 .end    = AT91SAM9263_ID_TWI,
 436                 .flags  = IORESOURCE_IRQ,
 437         },
 438 };
 439
 440 static struct platform_device at91sam9263_twi_device = {
 441         .name           = "at91_i2c",
 442         .id             = -1,
 443         .resource       = twi_resources,
 444         .num_resources  = ARRAY_SIZE(twi_resources),
 445 };
 446
 447 void __init at91_add_device_i2c(void)
 448 {
 449         /* pins used for TWI interface */
 450         at91_set_A_periph(AT91_PIN_PB4, 0);             /* TWD */
 451         at91_set_multi_drive(AT91_PIN_PB4, 1);
 452
 453         at91_set_A_periph(AT91_PIN_PB5, 0);             /* TWCK */
 454         at91_set_multi_drive(AT91_PIN_PB5, 1);
 455
 456         platform_device_register(&at91sam9263_twi_device);
 457 }
 458 #else
 459 void __init at91_add_device_i2c(void) {}
 460 #endif
 461
 462
 463 /* --------------------------------------------------------------------
 464  *  SPI
 465  * -------------------------------------------------------------------- */
 466
 467 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 468 static u64 spi_dmamask = 0xffffffffUL;
 469
 470 static struct resource spi0_resources[] = {
 471         [0] = {
 472                 .start  = AT91SAM9263_BASE_SPI0,
 473                 .end    = AT91SAM9263_BASE_SPI0 + SZ_16K - 1,
 474                 .flags  = IORESOURCE_MEM,
 475         },
 476         [1] = {
 477                 .start  = AT91SAM9263_ID_SPI0,
 478                 .end    = AT91SAM9263_ID_SPI0,
 479                 .flags  = IORESOURCE_IRQ,
 480         },
 481 };
 482
 483 static struct platform_device at91sam9263_spi0_device = {
 484         .name           = "atmel_spi",
 485         .id             = 0,
 486         .dev            = {
 487                                 .dma_mask               = &spi_dmamask,
 488                                 .coherent_dma_mask      = 0xffffffff,
 489         },
 490         .resource       = spi0_resources,
 491         .num_resources  = ARRAY_SIZE(spi0_resources),
 492 };
 493
 494 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA5, AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PB11 };
 495
 496 static struct resource spi1_resources[] = {
 497         [0] = {
 498                 .start  = AT91SAM9263_BASE_SPI1,
 499                 .end    = AT91SAM9263_BASE_SPI1 + SZ_16K - 1,
 500                 .flags  = IORESOURCE_MEM,
 501         },
 502         [1] = {
 503                 .start  = AT91SAM9263_ID_SPI1,
 504                 .end    = AT91SAM9263_ID_SPI1,
 505                 .flags  = IORESOURCE_IRQ,
 506         },
 507 };
 508
 509 static struct platform_device at91sam9263_spi1_device = {
 510         .name           = "atmel_spi",
 511         .id             = 1,
 512         .dev            = {
 513                                 .dma_mask               = &spi_dmamask,
 514                                 .coherent_dma_mask      = 0xffffffff,
 515         },
 516         .resource       = spi1_resources,
 517         .num_resources  = ARRAY_SIZE(spi1_resources),
 518 };
 519
 520 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB15, AT91_PIN_PB16, AT91_PIN_PB17, AT91_PIN_PB18 };
 521
 522 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 523 {
 524         int i;
 525         unsigned long cs_pin;
 526         short enable_spi0 = 0;
 527         short enable_spi1 = 0;
 528
 529         /* Choose SPI chip-selects */
 530         for (i = 0; i < nr_devices; i++) {
 531                 if (devices[i].controller_data)
 532                         cs_pin = (unsigned long) devices[i].controller_data;
 533                 else if (devices[i].bus_num == 0)
 534                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 535                 else
 536                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 537
 538                 if (devices[i].bus_num == 0)
 539                         enable_spi0 = 1;
 540                 else
 541                         enable_spi1 = 1;
 542
 543                 /* enable chip-select pin */
 544                 at91_set_gpio_output(cs_pin, 1);
 545
 546                 /* pass chip-select pin to driver */
 547                 devices[i].controller_data = (void *) cs_pin;
 548         }
 549
 550         spi_register_board_info(devices, nr_devices);
 551
 552         /* Configure SPI bus(es) */
 553         if (enable_spi0) {
 554                 at91_set_B_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 555                 at91_set_B_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 556                 at91_set_B_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 557
 558                 at91_clock_associate("spi0_clk", &at91sam9263_spi0_device.dev, "spi_clk");
 559                 platform_device_register(&at91sam9263_spi0_device);
 560         }
 561         if (enable_spi1) {
 562                 at91_set_A_periph(AT91_PIN_PB12, 0);    /* SPI1_MISO */
 563                 at91_set_A_periph(AT91_PIN_PB13, 0);    /* SPI1_MOSI */
 564                 at91_set_A_periph(AT91_PIN_PB14, 0);    /* SPI1_SPCK */
 565
 566                 at91_clock_associate("spi1_clk", &at91sam9263_spi1_device.dev, "spi_clk");
 567                 platform_device_register(&at91sam9263_spi1_device);
 568         }
 569 }
 570 #else
 571 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 572 #endif
 573
 574
 575 /* --------------------------------------------------------------------
 576  *  LEDs
 577  * -------------------------------------------------------------------- */
 578
 579 #if defined(CONFIG_LEDS)
 580 u8 at91_leds_cpu;
 581 u8 at91_leds_timer;
 582
 583 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
 584 {
 585         /* Enable GPIO to access the LEDs */
 586         at91_set_gpio_output(cpu_led, 1);
 587         at91_set_gpio_output(timer_led, 1);
 588
 589         at91_leds_cpu   = cpu_led;
 590         at91_leds_timer = timer_led;
 591 }
 592 #else
 593 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 594 #endif
 595
 596
 597 /* --------------------------------------------------------------------
 598  *  UART
 599  * -------------------------------------------------------------------- */
 600
 601 #if defined(CONFIG_SERIAL_ATMEL)
 602
 603 static struct resource dbgu_resources[] = {
 604         [0] = {
 605                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 606                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 607                 .flags  = IORESOURCE_MEM,
 608         },
 609         [1] = {
 610                 .start  = AT91_ID_SYS,
 611                 .end    = AT91_ID_SYS,
 612                 .flags  = IORESOURCE_IRQ,
 613         },
 614 };
 615
 616 static struct atmel_uart_data dbgu_data = {
 617         .use_dma_tx     = 0,
 618         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 619         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 620 };
 621
 622 static struct platform_device at91sam9263_dbgu_device = {
 623         .name           = "atmel_usart",
 624         .id             = 0,
 625         .dev            = {
 626                                 .platform_data  = &dbgu_data,
 627                                 .coherent_dma_mask = 0xffffffff,
 628         },
 629         .resource       = dbgu_resources,
 630         .num_resources  = ARRAY_SIZE(dbgu_resources),
 631 };
 632
 633 static inline void configure_dbgu_pins(void)
 634 {
 635         at91_set_A_periph(AT91_PIN_PC30, 0);            /* DRXD */
 636         at91_set_A_periph(AT91_PIN_PC31, 1);            /* DTXD */
 637 }
 638
 639 static struct resource uart0_resources[] = {
 640         [0] = {
 641                 .start  = AT91SAM9263_BASE_US0,
 642                 .end    = AT91SAM9263_BASE_US0 + SZ_16K - 1,
 643                 .flags  = IORESOURCE_MEM,
 644         },
 645         [1] = {
 646                 .start  = AT91SAM9263_ID_US0,
 647                 .end    = AT91SAM9263_ID_US0,
 648                 .flags  = IORESOURCE_IRQ,
 649         },
 650 };
 651
 652 static struct atmel_uart_data uart0_data = {
 653         .use_dma_tx     = 1,
 654         .use_dma_rx     = 1,
 655 };
 656
 657 static struct platform_device at91sam9263_uart0_device = {
 658         .name           = "atmel_usart",
 659         .id             = 1,
 660         .dev            = {
 661                                 .platform_data  = &uart0_data,
 662                                 .coherent_dma_mask = 0xffffffff,
 663         },
 664         .resource       = uart0_resources,
 665         .num_resources  = ARRAY_SIZE(uart0_resources),
 666 };
 667
 668 static inline void configure_usart0_pins(void)
 669 {
 670         at91_set_A_periph(AT91_PIN_PA26, 1);            /* TXD0 */
 671         at91_set_A_periph(AT91_PIN_PA27, 0);            /* RXD0 */
 672         at91_set_A_periph(AT91_PIN_PA28, 0);            /* RTS0 */
 673         at91_set_A_periph(AT91_PIN_PA29, 0);            /* CTS0 */
 674 }
 675
 676 static struct resource uart1_resources[] = {
 677         [0] = {
 678                 .start  = AT91SAM9263_BASE_US1,
 679                 .end    = AT91SAM9263_BASE_US1 + SZ_16K - 1,
 680                 .flags  = IORESOURCE_MEM,
 681         },
 682         [1] = {
 683                 .start  = AT91SAM9263_ID_US1,
 684                 .end    = AT91SAM9263_ID_US1,
 685                 .flags  = IORESOURCE_IRQ,
 686         },
 687 };
 688
 689 static struct atmel_uart_data uart1_data = {
 690         .use_dma_tx     = 1,
 691         .use_dma_rx     = 1,
 692 };
 693
 694 static struct platform_device at91sam9263_uart1_device = {
 695         .name           = "atmel_usart",
 696         .id             = 2,
 697         .dev            = {
 698                                 .platform_data  = &uart1_data,
 699                                 .coherent_dma_mask = 0xffffffff,
 700         },
 701         .resource       = uart1_resources,
 702         .num_resources  = ARRAY_SIZE(uart1_resources),
 703 };
 704
 705 static inline void configure_usart1_pins(void)
 706 {
 707         at91_set_A_periph(AT91_PIN_PD0, 1);             /* TXD1 */
 708         at91_set_A_periph(AT91_PIN_PD1, 0);             /* RXD1 */
 709         at91_set_B_periph(AT91_PIN_PD7, 0);             /* RTS1 */
 710         at91_set_B_periph(AT91_PIN_PD8, 0);             /* CTS1 */
 711 }
 712
 713 static struct resource uart2_resources[] = {
 714         [0] = {
 715                 .start  = AT91SAM9263_BASE_US2,
 716                 .end    = AT91SAM9263_BASE_US2 + SZ_16K - 1,
 717                 .flags  = IORESOURCE_MEM,
 718         },
 719         [1] = {
 720                 .start  = AT91SAM9263_ID_US2,
 721                 .end    = AT91SAM9263_ID_US2,
 722                 .flags  = IORESOURCE_IRQ,
 723         },
 724 };
 725
 726 static struct atmel_uart_data uart2_data = {
 727         .use_dma_tx     = 1,
 728         .use_dma_rx     = 1,
 729 };
 730
 731 static struct platform_device at91sam9263_uart2_device = {
 732         .name           = "atmel_usart",
 733         .id             = 3,
 734         .dev            = {
 735                                 .platform_data  = &uart2_data,
 736                                 .coherent_dma_mask = 0xffffffff,
 737         },
 738         .resource       = uart2_resources,
 739         .num_resources  = ARRAY_SIZE(uart2_resources),
 740 };
 741
 742 static inline void configure_usart2_pins(void)
 743 {
 744         at91_set_A_periph(AT91_PIN_PD2, 1);             /* TXD2 */
 745         at91_set_A_periph(AT91_PIN_PD3, 0);             /* RXD2 */
 746         at91_set_B_periph(AT91_PIN_PD5, 0);             /* RTS2 */
 747         at91_set_B_periph(AT91_PIN_PD6, 0);             /* CTS2 */
 748 }
 749
 750 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
 751 struct platform_device *atmel_default_console_device;   /* the serial console device */
 752
 753 void __init at91_init_serial(struct at91_uart_config *config)
 754 {
 755         int i;
 756
 757         /* Fill in list of supported UARTs */
 758         for (i = 0; i < config->nr_tty; i++) {
 759                 switch (config->tty_map[i]) {
 760                         case 0:
 761                                 configure_usart0_pins();
 762                                 at91_uarts[i] = &at91sam9263_uart0_device;
 763                                 at91_clock_associate("usart0_clk", &at91sam9263_uart0_device.dev, "usart");
 764                                 break;
 765                         case 1:
 766                                 configure_usart1_pins();
 767                                 at91_uarts[i] = &at91sam9263_uart1_device;
 768                                 at91_clock_associate("usart1_clk", &at91sam9263_uart1_device.dev, "usart");
 769                                 break;
 770                         case 2:
 771                                 configure_usart2_pins();
 772                                 at91_uarts[i] = &at91sam9263_uart2_device;
 773                                 at91_clock_associate("usart2_clk", &at91sam9263_uart2_device.dev, "usart");
 774                                 break;
 775                         case 3:
 776                                 configure_dbgu_pins();
 777                                 at91_uarts[i] = &at91sam9263_dbgu_device;
 778                                 at91_clock_associate("mck", &at91sam9263_dbgu_device.dev, "usart");
 779                                 break;
 780                         default:
 781                                 continue;
 782                 }
 783                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
 784         }
 785
 786         /* Set serial console device */
 787         if (config->console_tty < ATMEL_MAX_UART)
 788                 atmel_default_console_device = at91_uarts[config->console_tty];
 789         if (!atmel_default_console_device)
 790                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 791 }
 792
 793 void __init at91_add_device_serial(void)
 794 {
 795         int i;
 796
 797         for (i = 0; i < ATMEL_MAX_UART; i++) {
 798                 if (at91_uarts[i])
 799                         platform_device_register(at91_uarts[i]);
 800         }
 801 }
 802 #else
 803 void __init at91_init_serial(struct at91_uart_config *config) {}
 804 void __init at91_add_device_serial(void) {}
 805 #endif
 806
 807
 808 /* -------------------------------------------------------------------- */
 809 /*
 810  * These devices are always present and don't need any board-specific
 811  * setup.
 812  */
 813 static int __init at91_add_standard_devices(void)
 814 {
 815         return 0;
 816 }
 817
 818 arch_initcall(at91_add_standard_devices);