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/dma-mapping.h>
  16 #include <linux/gpio.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/i2c-gpio.h>
  19
  20 #include <mach/board.h>
  21 #include <mach/cpu.h>
  22 #include <mach/at91sam9260.h>
  23 #include <mach/at91sam9260_matrix.h>
  24 #include <mach/at91_matrix.h>
  25 #include <mach/at91sam9_smc.h>
  26
  27 #include "generic.h"
  28
  29
  30 /* --------------------------------------------------------------------
  31  *  USB Host
  32  * -------------------------------------------------------------------- */
  33
  34 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  35 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  36 static struct at91_usbh_data usbh_data;
  37
  38 static struct resource usbh_resources[] = {
  39         [0] = {
  40                 .start  = AT91SAM9260_UHP_BASE,
  41                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
  42                 .flags  = IORESOURCE_MEM,
  43         },
  44         [1] = {
  45                 .start  = AT91SAM9260_ID_UHP,
  46                 .end    = AT91SAM9260_ID_UHP,
  47                 .flags  = IORESOURCE_IRQ,
  48         },
  49 };
  50
  51 static struct platform_device at91_usbh_device = {
  52         .name           = "at91_ohci",
  53         .id             = -1,
  54         .dev            = {
  55                                 .dma_mask               = &ohci_dmamask,
  56                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  57                                 .platform_data          = &usbh_data,
  58         },
  59         .resource       = usbh_resources,
  60         .num_resources  = ARRAY_SIZE(usbh_resources),
  61 };
  62
  63 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  64 {
  65         int i;
  66
  67         if (!data)
  68                 return;
  69
  70         /* Enable overcurrent notification */
  71         for (i = 0; i < data->ports; i++) {
  72                 if (data->overcurrent_pin[i])
  73                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
  74         }
  75
  76         usbh_data = *data;
  77         platform_device_register(&at91_usbh_device);
  78 }
  79 #else
  80 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  81 #endif
  82
  83
  84 /* --------------------------------------------------------------------
  85  *  USB Device (Gadget)
  86  * -------------------------------------------------------------------- */
  87
  88 #if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
  89 static struct at91_udc_data udc_data;
  90
  91 static struct resource udc_resources[] = {
  92         [0] = {
  93                 .start  = AT91SAM9260_BASE_UDP,
  94                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
  95                 .flags  = IORESOURCE_MEM,
  96         },
  97         [1] = {
  98                 .start  = AT91SAM9260_ID_UDP,
  99                 .end    = AT91SAM9260_ID_UDP,
 100                 .flags  = IORESOURCE_IRQ,
 101         },
 102 };
 103
 104 static struct platform_device at91_udc_device = {
 105         .name           = "at91_udc",
 106         .id             = -1,
 107         .dev            = {
 108                                 .platform_data          = &udc_data,
 109         },
 110         .resource       = udc_resources,
 111         .num_resources  = ARRAY_SIZE(udc_resources),
 112 };
 113
 114 void __init at91_add_device_udc(struct at91_udc_data *data)
 115 {
 116         if (!data)
 117                 return;
 118
 119         if (gpio_is_valid(data->vbus_pin)) {
 120                 at91_set_gpio_input(data->vbus_pin, 0);
 121                 at91_set_deglitch(data->vbus_pin, 1);
 122         }
 123
 124         /* Pullup pin is handled internally by USB device peripheral */
 125
 126         udc_data = *data;
 127         platform_device_register(&at91_udc_device);
 128 }
 129 #else
 130 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 131 #endif
 132
 133
 134 /* --------------------------------------------------------------------
 135  *  Ethernet
 136  * -------------------------------------------------------------------- */
 137
 138 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 139 static u64 eth_dmamask = DMA_BIT_MASK(32);
 140 static struct macb_platform_data eth_data;
 141
 142 static struct resource eth_resources[] = {
 143         [0] = {
 144                 .start  = AT91SAM9260_BASE_EMAC,
 145                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
 146                 .flags  = IORESOURCE_MEM,
 147         },
 148         [1] = {
 149                 .start  = AT91SAM9260_ID_EMAC,
 150                 .end    = AT91SAM9260_ID_EMAC,
 151                 .flags  = IORESOURCE_IRQ,
 152         },
 153 };
 154
 155 static struct platform_device at91sam9260_eth_device = {
 156         .name           = "macb",
 157         .id             = -1,
 158         .dev            = {
 159                                 .dma_mask               = &eth_dmamask,
 160                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 161                                 .platform_data          = &eth_data,
 162         },
 163         .resource       = eth_resources,
 164         .num_resources  = ARRAY_SIZE(eth_resources),
 165 };
 166
 167 void __init at91_add_device_eth(struct macb_platform_data *data)
 168 {
 169         if (!data)
 170                 return;
 171
 172         if (gpio_is_valid(data->phy_irq_pin)) {
 173                 at91_set_gpio_input(data->phy_irq_pin, 0);
 174                 at91_set_deglitch(data->phy_irq_pin, 1);
 175         }
 176
 177         /* Pins used for MII and RMII */
 178         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
 179         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 180         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
 181         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
 182         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
 183         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
 184         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
 185         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
 186         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
 187         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
 188
 189         if (!data->is_rmii) {
 190                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
 191                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
 192                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
 193                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
 194                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
 195                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
 196                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
 197                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
 198         }
 199
 200         eth_data = *data;
 201         platform_device_register(&at91sam9260_eth_device);
 202 }
 203 #else
 204 void __init at91_add_device_eth(struct macb_platform_data *data) {}
 205 #endif
 206
 207
 208 /* --------------------------------------------------------------------
 209  *  MMC / SD
 210  * -------------------------------------------------------------------- */
 211
 212 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 213 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 214 static struct at91_mmc_data mmc_data;
 215
 216 static struct resource mmc_resources[] = {
 217         [0] = {
 218                 .start  = AT91SAM9260_BASE_MCI,
 219                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 220                 .flags  = IORESOURCE_MEM,
 221         },
 222         [1] = {
 223                 .start  = AT91SAM9260_ID_MCI,
 224                 .end    = AT91SAM9260_ID_MCI,
 225                 .flags  = IORESOURCE_IRQ,
 226         },
 227 };
 228
 229 static struct platform_device at91sam9260_mmc_device = {
 230         .name           = "at91_mci",
 231         .id             = -1,
 232         .dev            = {
 233                                 .dma_mask               = &mmc_dmamask,
 234                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 235                                 .platform_data          = &mmc_data,
 236         },
 237         .resource       = mmc_resources,
 238         .num_resources  = ARRAY_SIZE(mmc_resources),
 239 };
 240
 241 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 242 {
 243         if (!data)
 244                 return;
 245
 246         /* input/irq */
 247         if (gpio_is_valid(data->det_pin)) {
 248                 at91_set_gpio_input(data->det_pin, 1);
 249                 at91_set_deglitch(data->det_pin, 1);
 250         }
 251         if (gpio_is_valid(data->wp_pin))
 252                 at91_set_gpio_input(data->wp_pin, 1);
 253         if (gpio_is_valid(data->vcc_pin))
 254                 at91_set_gpio_output(data->vcc_pin, 0);
 255
 256         /* CLK */
 257         at91_set_A_periph(AT91_PIN_PA8, 0);
 258
 259         if (data->slot_b) {
 260                 /* CMD */
 261                 at91_set_B_periph(AT91_PIN_PA1, 1);
 262
 263                 /* DAT0, maybe DAT1..DAT3 */
 264                 at91_set_B_periph(AT91_PIN_PA0, 1);
 265                 if (data->wire4) {
 266                         at91_set_B_periph(AT91_PIN_PA5, 1);
 267                         at91_set_B_periph(AT91_PIN_PA4, 1);
 268                         at91_set_B_periph(AT91_PIN_PA3, 1);
 269                 }
 270         } else {
 271                 /* CMD */
 272                 at91_set_A_periph(AT91_PIN_PA7, 1);
 273
 274                 /* DAT0, maybe DAT1..DAT3 */
 275                 at91_set_A_periph(AT91_PIN_PA6, 1);
 276                 if (data->wire4) {
 277                         at91_set_A_periph(AT91_PIN_PA9, 1);
 278                         at91_set_A_periph(AT91_PIN_PA10, 1);
 279                         at91_set_A_periph(AT91_PIN_PA11, 1);
 280                 }
 281         }
 282
 283         mmc_data = *data;
 284         platform_device_register(&at91sam9260_mmc_device);
 285 }
 286 #else
 287 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 288 #endif
 289
 290 /* --------------------------------------------------------------------
 291  *  MMC / SD Slot for Atmel MCI Driver
 292  * -------------------------------------------------------------------- */
 293
 294 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
 295 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 296 static struct mci_platform_data mmc_data;
 297
 298 static struct resource mmc_resources[] = {
 299         [0] = {
 300                 .start  = AT91SAM9260_BASE_MCI,
 301                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 302                 .flags  = IORESOURCE_MEM,
 303         },
 304         [1] = {
 305                 .start  = AT91SAM9260_ID_MCI,
 306                 .end    = AT91SAM9260_ID_MCI,
 307                 .flags  = IORESOURCE_IRQ,
 308         },
 309 };
 310
 311 static struct platform_device at91sam9260_mmc_device = {
 312         .name           = "atmel_mci",
 313         .id             = -1,
 314         .dev            = {
 315                                 .dma_mask               = &mmc_dmamask,
 316                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 317                                 .platform_data          = &mmc_data,
 318         },
 319         .resource       = mmc_resources,
 320         .num_resources  = ARRAY_SIZE(mmc_resources),
 321 };
 322
 323 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
 324 {
 325         unsigned int i;
 326         unsigned int slot_count = 0;
 327
 328         if (!data)
 329                 return;
 330
 331         for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
 332                 if (data->slot[i].bus_width) {
 333                         /* input/irq */
 334                         if (gpio_is_valid(data->slot[i].detect_pin)) {
 335                                 at91_set_gpio_input(data->slot[i].detect_pin, 1);
 336                                 at91_set_deglitch(data->slot[i].detect_pin, 1);
 337                         }
 338                         if (gpio_is_valid(data->slot[i].wp_pin))
 339                                 at91_set_gpio_input(data->slot[i].wp_pin, 1);
 340
 341                         switch (i) {
 342                         case 0:
 343                                 /* CMD */
 344                                 at91_set_A_periph(AT91_PIN_PA7, 1);
 345                                 /* DAT0, maybe DAT1..DAT3 */
 346                                 at91_set_A_periph(AT91_PIN_PA6, 1);
 347                                 if (data->slot[i].bus_width == 4) {
 348                                         at91_set_A_periph(AT91_PIN_PA9, 1);
 349                                         at91_set_A_periph(AT91_PIN_PA10, 1);
 350                                         at91_set_A_periph(AT91_PIN_PA11, 1);
 351                                 }
 352                                 slot_count++;
 353                                 break;
 354                         case 1:
 355                                 /* CMD */
 356                                 at91_set_B_periph(AT91_PIN_PA1, 1);
 357                                 /* DAT0, maybe DAT1..DAT3 */
 358                                 at91_set_B_periph(AT91_PIN_PA0, 1);
 359                                 if (data->slot[i].bus_width == 4) {
 360                                         at91_set_B_periph(AT91_PIN_PA5, 1);
 361                                         at91_set_B_periph(AT91_PIN_PA4, 1);
 362                                         at91_set_B_periph(AT91_PIN_PA3, 1);
 363                                 }
 364                                 slot_count++;
 365                                 break;
 366                         default:
 367                                 printk(KERN_ERR
 368                                         "AT91: SD/MMC slot %d not available\n", i);
 369                                 break;
 370                         }
 371                 }
 372         }
 373
 374         if (slot_count) {
 375                 /* CLK */
 376                 at91_set_A_periph(AT91_PIN_PA8, 0);
 377
 378                 mmc_data = *data;
 379                 platform_device_register(&at91sam9260_mmc_device);
 380         }
 381 }
 382 #else
 383 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
 384 #endif
 385
 386
 387 /* --------------------------------------------------------------------
 388  *  NAND / SmartMedia
 389  * -------------------------------------------------------------------- */
 390
 391 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 392 static struct atmel_nand_data nand_data;
 393
 394 #define NAND_BASE       AT91_CHIPSELECT_3
 395
 396 static struct resource nand_resources[] = {
 397         [0] = {
 398                 .start  = NAND_BASE,
 399                 .end    = NAND_BASE + SZ_256M - 1,
 400                 .flags  = IORESOURCE_MEM,
 401         },
 402         [1] = {
 403                 .start  = AT91SAM9260_BASE_ECC,
 404                 .end    = AT91SAM9260_BASE_ECC + SZ_512 - 1,
 405                 .flags  = IORESOURCE_MEM,
 406         }
 407 };
 408
 409 static struct platform_device at91sam9260_nand_device = {
 410         .name           = "atmel_nand",
 411         .id             = -1,
 412         .dev            = {
 413                                 .platform_data  = &nand_data,
 414         },
 415         .resource       = nand_resources,
 416         .num_resources  = ARRAY_SIZE(nand_resources),
 417 };
 418
 419 void __init at91_add_device_nand(struct atmel_nand_data *data)
 420 {
 421         unsigned long csa;
 422
 423         if (!data)
 424                 return;
 425
 426         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
 427         at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 428
 429         /* enable pin */
 430         if (gpio_is_valid(data->enable_pin))
 431                 at91_set_gpio_output(data->enable_pin, 1);
 432
 433         /* ready/busy pin */
 434         if (gpio_is_valid(data->rdy_pin))
 435                 at91_set_gpio_input(data->rdy_pin, 1);
 436
 437         /* card detect pin */
 438         if (gpio_is_valid(data->det_pin))
 439                 at91_set_gpio_input(data->det_pin, 1);
 440
 441         nand_data = *data;
 442         platform_device_register(&at91sam9260_nand_device);
 443 }
 444 #else
 445 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 446 #endif
 447
 448
 449 /* --------------------------------------------------------------------
 450  *  TWI (i2c)
 451  * -------------------------------------------------------------------- */
 452
 453 /*
 454  * Prefer the GPIO code since the TWI controller isn't robust
 455  * (gets overruns and underruns under load) and can only issue
 456  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 457  */
 458
 459 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 460
 461 static struct i2c_gpio_platform_data pdata = {
 462         .sda_pin                = AT91_PIN_PA23,
 463         .sda_is_open_drain      = 1,
 464         .scl_pin                = AT91_PIN_PA24,
 465         .scl_is_open_drain      = 1,
 466         .udelay                 = 2,            /* ~100 kHz */
 467 };
 468
 469 static struct platform_device at91sam9260_twi_device = {
 470         .name                   = "i2c-gpio",
 471         .id                     = -1,
 472         .dev.platform_data      = &pdata,
 473 };
 474
 475 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 476 {
 477         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
 478         at91_set_multi_drive(AT91_PIN_PA23, 1);
 479
 480         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
 481         at91_set_multi_drive(AT91_PIN_PA24, 1);
 482
 483         i2c_register_board_info(0, devices, nr_devices);
 484         platform_device_register(&at91sam9260_twi_device);
 485 }
 486
 487 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 488
 489 static struct resource twi_resources[] = {
 490         [0] = {
 491                 .start  = AT91SAM9260_BASE_TWI,
 492                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 493                 .flags  = IORESOURCE_MEM,
 494         },
 495         [1] = {
 496                 .start  = AT91SAM9260_ID_TWI,
 497                 .end    = AT91SAM9260_ID_TWI,
 498                 .flags  = IORESOURCE_IRQ,
 499         },
 500 };
 501
 502 static struct platform_device at91sam9260_twi_device = {
 503         .name           = "at91_i2c",
 504         .id             = -1,
 505         .resource       = twi_resources,
 506         .num_resources  = ARRAY_SIZE(twi_resources),
 507 };
 508
 509 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 510 {
 511         /* pins used for TWI interface */
 512         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 513         at91_set_multi_drive(AT91_PIN_PA23, 1);
 514
 515         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 516         at91_set_multi_drive(AT91_PIN_PA24, 1);
 517
 518         i2c_register_board_info(0, devices, nr_devices);
 519         platform_device_register(&at91sam9260_twi_device);
 520 }
 521 #else
 522 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 523 #endif
 524
 525
 526 /* --------------------------------------------------------------------
 527  *  SPI
 528  * -------------------------------------------------------------------- */
 529
 530 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 531 static u64 spi_dmamask = DMA_BIT_MASK(32);
 532
 533 static struct resource spi0_resources[] = {
 534         [0] = {
 535                 .start  = AT91SAM9260_BASE_SPI0,
 536                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 537                 .flags  = IORESOURCE_MEM,
 538         },
 539         [1] = {
 540                 .start  = AT91SAM9260_ID_SPI0,
 541                 .end    = AT91SAM9260_ID_SPI0,
 542                 .flags  = IORESOURCE_IRQ,
 543         },
 544 };
 545
 546 static struct platform_device at91sam9260_spi0_device = {
 547         .name           = "atmel_spi",
 548         .id             = 0,
 549         .dev            = {
 550                                 .dma_mask               = &spi_dmamask,
 551                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 552         },
 553         .resource       = spi0_resources,
 554         .num_resources  = ARRAY_SIZE(spi0_resources),
 555 };
 556
 557 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 558
 559 static struct resource spi1_resources[] = {
 560         [0] = {
 561                 .start  = AT91SAM9260_BASE_SPI1,
 562                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 563                 .flags  = IORESOURCE_MEM,
 564         },
 565         [1] = {
 566                 .start  = AT91SAM9260_ID_SPI1,
 567                 .end    = AT91SAM9260_ID_SPI1,
 568                 .flags  = IORESOURCE_IRQ,
 569         },
 570 };
 571
 572 static struct platform_device at91sam9260_spi1_device = {
 573         .name           = "atmel_spi",
 574         .id             = 1,
 575         .dev            = {
 576                                 .dma_mask               = &spi_dmamask,
 577                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 578         },
 579         .resource       = spi1_resources,
 580         .num_resources  = ARRAY_SIZE(spi1_resources),
 581 };
 582
 583 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 584
 585 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 586 {
 587         int i;
 588         unsigned long cs_pin;
 589         short enable_spi0 = 0;
 590         short enable_spi1 = 0;
 591
 592         /* Choose SPI chip-selects */
 593         for (i = 0; i < nr_devices; i++) {
 594                 if (devices[i].controller_data)
 595                         cs_pin = (unsigned long) devices[i].controller_data;
 596                 else if (devices[i].bus_num == 0)
 597                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 598                 else
 599                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 600
 601                 if (!gpio_is_valid(cs_pin))
 602                         continue;
 603
 604                 if (devices[i].bus_num == 0)
 605                         enable_spi0 = 1;
 606                 else
 607                         enable_spi1 = 1;
 608
 609                 /* enable chip-select pin */
 610                 at91_set_gpio_output(cs_pin, 1);
 611
 612                 /* pass chip-select pin to driver */
 613                 devices[i].controller_data = (void *) cs_pin;
 614         }
 615
 616         spi_register_board_info(devices, nr_devices);
 617
 618         /* Configure SPI bus(es) */
 619         if (enable_spi0) {
 620                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 621                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 622                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 623
 624                 platform_device_register(&at91sam9260_spi0_device);
 625         }
 626         if (enable_spi1) {
 627                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 628                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 629                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 630
 631                 platform_device_register(&at91sam9260_spi1_device);
 632         }
 633 }
 634 #else
 635 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 636 #endif
 637
 638
 639 /* --------------------------------------------------------------------
 640  *  Timer/Counter blocks
 641  * -------------------------------------------------------------------- */
 642
 643 #ifdef CONFIG_ATMEL_TCLIB
 644
 645 static struct resource tcb0_resources[] = {
 646         [0] = {
 647                 .start  = AT91SAM9260_BASE_TCB0,
 648                 .end    = AT91SAM9260_BASE_TCB0 + SZ_256 - 1,
 649                 .flags  = IORESOURCE_MEM,
 650         },
 651         [1] = {
 652                 .start  = AT91SAM9260_ID_TC0,
 653                 .end    = AT91SAM9260_ID_TC0,
 654                 .flags  = IORESOURCE_IRQ,
 655         },
 656         [2] = {
 657                 .start  = AT91SAM9260_ID_TC1,
 658                 .end    = AT91SAM9260_ID_TC1,
 659                 .flags  = IORESOURCE_IRQ,
 660         },
 661         [3] = {
 662                 .start  = AT91SAM9260_ID_TC2,
 663                 .end    = AT91SAM9260_ID_TC2,
 664                 .flags  = IORESOURCE_IRQ,
 665         },
 666 };
 667
 668 static struct platform_device at91sam9260_tcb0_device = {
 669         .name           = "atmel_tcb",
 670         .id             = 0,
 671         .resource       = tcb0_resources,
 672         .num_resources  = ARRAY_SIZE(tcb0_resources),
 673 };
 674
 675 static struct resource tcb1_resources[] = {
 676         [0] = {
 677                 .start  = AT91SAM9260_BASE_TCB1,
 678                 .end    = AT91SAM9260_BASE_TCB1 + SZ_256 - 1,
 679                 .flags  = IORESOURCE_MEM,
 680         },
 681         [1] = {
 682                 .start  = AT91SAM9260_ID_TC3,
 683                 .end    = AT91SAM9260_ID_TC3,
 684                 .flags  = IORESOURCE_IRQ,
 685         },
 686         [2] = {
 687                 .start  = AT91SAM9260_ID_TC4,
 688                 .end    = AT91SAM9260_ID_TC4,
 689                 .flags  = IORESOURCE_IRQ,
 690         },
 691         [3] = {
 692                 .start  = AT91SAM9260_ID_TC5,
 693                 .end    = AT91SAM9260_ID_TC5,
 694                 .flags  = IORESOURCE_IRQ,
 695         },
 696 };
 697
 698 static struct platform_device at91sam9260_tcb1_device = {
 699         .name           = "atmel_tcb",
 700         .id             = 1,
 701         .resource       = tcb1_resources,
 702         .num_resources  = ARRAY_SIZE(tcb1_resources),
 703 };
 704
 705 static void __init at91_add_device_tc(void)
 706 {
 707         platform_device_register(&at91sam9260_tcb0_device);
 708         platform_device_register(&at91sam9260_tcb1_device);
 709 }
 710 #else
 711 static void __init at91_add_device_tc(void) { }
 712 #endif
 713
 714
 715 /* --------------------------------------------------------------------
 716  *  RTT
 717  * -------------------------------------------------------------------- */
 718
 719 static struct resource rtt_resources[] = {
 720         {
 721                 .start  = AT91SAM9260_BASE_RTT,
 722                 .end    = AT91SAM9260_BASE_RTT + SZ_16 - 1,
 723                 .flags  = IORESOURCE_MEM,
 724         }, {
 725                 .flags  = IORESOURCE_MEM,
 726         },
 727 };
 728
 729 static struct platform_device at91sam9260_rtt_device = {
 730         .name           = "at91_rtt",
 731         .id             = 0,
 732         .resource       = rtt_resources,
 733 };
 734
 735
 736 #if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
 737 static void __init at91_add_device_rtt_rtc(void)
 738 {
 739         at91sam9260_rtt_device.name = "rtc-at91sam9";
 740         /*
 741          * The second resource is needed:
 742          * GPBR will serve as the storage for RTC time offset
 743          */
 744         at91sam9260_rtt_device.num_resources = 2;
 745         rtt_resources[1].start = AT91SAM9260_BASE_GPBR +
 746                                  4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
 747         rtt_resources[1].end = rtt_resources[1].start + 3;
 748 }
 749 #else
 750 static void __init at91_add_device_rtt_rtc(void)
 751 {
 752         /* Only one resource is needed: RTT not used as RTC */
 753         at91sam9260_rtt_device.num_resources = 1;
 754 }
 755 #endif
 756
 757 static void __init at91_add_device_rtt(void)
 758 {
 759         at91_add_device_rtt_rtc();
 760         platform_device_register(&at91sam9260_rtt_device);
 761 }
 762
 763
 764 /* --------------------------------------------------------------------
 765  *  Watchdog
 766  * -------------------------------------------------------------------- */
 767
 768 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 769 static struct resource wdt_resources[] = {
 770         {
 771                 .start  = AT91SAM9260_BASE_WDT,
 772                 .end    = AT91SAM9260_BASE_WDT + SZ_16 - 1,
 773                 .flags  = IORESOURCE_MEM,
 774         }
 775 };
 776
 777 static struct platform_device at91sam9260_wdt_device = {
 778         .name           = "at91_wdt",
 779         .id             = -1,
 780         .resource       = wdt_resources,
 781         .num_resources  = ARRAY_SIZE(wdt_resources),
 782 };
 783
 784 static void __init at91_add_device_watchdog(void)
 785 {
 786         platform_device_register(&at91sam9260_wdt_device);
 787 }
 788 #else
 789 static void __init at91_add_device_watchdog(void) {}
 790 #endif
 791
 792
 793 /* --------------------------------------------------------------------
 794  *  SSC -- Synchronous Serial Controller
 795  * -------------------------------------------------------------------- */
 796
 797 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 798 static u64 ssc_dmamask = DMA_BIT_MASK(32);
 799
 800 static struct resource ssc_resources[] = {
 801         [0] = {
 802                 .start  = AT91SAM9260_BASE_SSC,
 803                 .end    = AT91SAM9260_BASE_SSC + SZ_16K - 1,
 804                 .flags  = IORESOURCE_MEM,
 805         },
 806         [1] = {
 807                 .start  = AT91SAM9260_ID_SSC,
 808                 .end    = AT91SAM9260_ID_SSC,
 809                 .flags  = IORESOURCE_IRQ,
 810         },
 811 };
 812
 813 static struct platform_device at91sam9260_ssc_device = {
 814         .name   = "ssc",
 815         .id     = 0,
 816         .dev    = {
 817                 .dma_mask               = &ssc_dmamask,
 818                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 819         },
 820         .resource       = ssc_resources,
 821         .num_resources  = ARRAY_SIZE(ssc_resources),
 822 };
 823
 824 static inline void configure_ssc_pins(unsigned pins)
 825 {
 826         if (pins & ATMEL_SSC_TF)
 827                 at91_set_A_periph(AT91_PIN_PB17, 1);
 828         if (pins & ATMEL_SSC_TK)
 829                 at91_set_A_periph(AT91_PIN_PB16, 1);
 830         if (pins & ATMEL_SSC_TD)
 831                 at91_set_A_periph(AT91_PIN_PB18, 1);
 832         if (pins & ATMEL_SSC_RD)
 833                 at91_set_A_periph(AT91_PIN_PB19, 1);
 834         if (pins & ATMEL_SSC_RK)
 835                 at91_set_A_periph(AT91_PIN_PB20, 1);
 836         if (pins & ATMEL_SSC_RF)
 837                 at91_set_A_periph(AT91_PIN_PB21, 1);
 838 }
 839
 840 /*
 841  * SSC controllers are accessed through library code, instead of any
 842  * kind of all-singing/all-dancing driver.  For example one could be
 843  * used by a particular I2S audio codec's driver, while another one
 844  * on the same system might be used by a custom data capture driver.
 845  */
 846 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 847 {
 848         struct platform_device *pdev;
 849
 850         /*
 851          * NOTE: caller is responsible for passing information matching
 852          * "pins" to whatever will be using each particular controller.
 853          */
 854         switch (id) {
 855         case AT91SAM9260_ID_SSC:
 856                 pdev = &at91sam9260_ssc_device;
 857                 configure_ssc_pins(pins);
 858                 break;
 859         default:
 860                 return;
 861         }
 862
 863         platform_device_register(pdev);
 864 }
 865
 866 #else
 867 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 868 #endif
 869
 870
 871 /* --------------------------------------------------------------------
 872  *  UART
 873  * -------------------------------------------------------------------- */
 874 #if defined(CONFIG_SERIAL_ATMEL)
 875 static struct resource dbgu_resources[] = {
 876         [0] = {
 877                 .start  = AT91SAM9260_BASE_DBGU,
 878                 .end    = AT91SAM9260_BASE_DBGU + SZ_512 - 1,
 879                 .flags  = IORESOURCE_MEM,
 880         },
 881         [1] = {
 882                 .start  = AT91_ID_SYS,
 883                 .end    = AT91_ID_SYS,
 884                 .flags  = IORESOURCE_IRQ,
 885         },
 886 };
 887
 888 static struct atmel_uart_data dbgu_data = {
 889         .use_dma_tx     = 0,
 890         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 891 };
 892
 893 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 894
 895 static struct platform_device at91sam9260_dbgu_device = {
 896         .name           = "atmel_usart",
 897         .id             = 0,
 898         .dev            = {
 899                                 .dma_mask               = &dbgu_dmamask,
 900                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 901                                 .platform_data          = &dbgu_data,
 902         },
 903         .resource       = dbgu_resources,
 904         .num_resources  = ARRAY_SIZE(dbgu_resources),
 905 };
 906
 907 static inline void configure_dbgu_pins(void)
 908 {
 909         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 910         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 911 }
 912
 913 static struct resource uart0_resources[] = {
 914         [0] = {
 915                 .start  = AT91SAM9260_BASE_US0,
 916                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 917                 .flags  = IORESOURCE_MEM,
 918         },
 919         [1] = {
 920                 .start  = AT91SAM9260_ID_US0,
 921                 .end    = AT91SAM9260_ID_US0,
 922                 .flags  = IORESOURCE_IRQ,
 923         },
 924 };
 925
 926 static struct atmel_uart_data uart0_data = {
 927         .use_dma_tx     = 1,
 928         .use_dma_rx     = 1,
 929 };
 930
 931 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 932
 933 static struct platform_device at91sam9260_uart0_device = {
 934         .name           = "atmel_usart",
 935         .id             = 1,
 936         .dev            = {
 937                                 .dma_mask               = &uart0_dmamask,
 938                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 939                                 .platform_data          = &uart0_data,
 940         },
 941         .resource       = uart0_resources,
 942         .num_resources  = ARRAY_SIZE(uart0_resources),
 943 };
 944
 945 static inline void configure_usart0_pins(unsigned pins)
 946 {
 947         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 948         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 949
 950         if (pins & ATMEL_UART_RTS)
 951                 at91_set_A_periph(AT91_PIN_PB26, 0);    /* RTS0 */
 952         if (pins & ATMEL_UART_CTS)
 953                 at91_set_A_periph(AT91_PIN_PB27, 0);    /* CTS0 */
 954         if (pins & ATMEL_UART_DTR)
 955                 at91_set_A_periph(AT91_PIN_PB24, 0);    /* DTR0 */
 956         if (pins & ATMEL_UART_DSR)
 957                 at91_set_A_periph(AT91_PIN_PB22, 0);    /* DSR0 */
 958         if (pins & ATMEL_UART_DCD)
 959                 at91_set_A_periph(AT91_PIN_PB23, 0);    /* DCD0 */
 960         if (pins & ATMEL_UART_RI)
 961                 at91_set_A_periph(AT91_PIN_PB25, 0);    /* RI0 */
 962 }
 963
 964 static struct resource uart1_resources[] = {
 965         [0] = {
 966                 .start  = AT91SAM9260_BASE_US1,
 967                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 968                 .flags  = IORESOURCE_MEM,
 969         },
 970         [1] = {
 971                 .start  = AT91SAM9260_ID_US1,
 972                 .end    = AT91SAM9260_ID_US1,
 973                 .flags  = IORESOURCE_IRQ,
 974         },
 975 };
 976
 977 static struct atmel_uart_data uart1_data = {
 978         .use_dma_tx     = 1,
 979         .use_dma_rx     = 1,
 980 };
 981
 982 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 983
 984 static struct platform_device at91sam9260_uart1_device = {
 985         .name           = "atmel_usart",
 986         .id             = 2,
 987         .dev            = {
 988                                 .dma_mask               = &uart1_dmamask,
 989                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 990                                 .platform_data          = &uart1_data,
 991         },
 992         .resource       = uart1_resources,
 993         .num_resources  = ARRAY_SIZE(uart1_resources),
 994 };
 995
 996 static inline void configure_usart1_pins(unsigned pins)
 997 {
 998         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 999         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
1000
1001         if (pins & ATMEL_UART_RTS)
1002                 at91_set_A_periph(AT91_PIN_PB28, 0);    /* RTS1 */
1003         if (pins & ATMEL_UART_CTS)
1004                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* CTS1 */
1005 }
1006
1007 static struct resource uart2_resources[] = {
1008         [0] = {
1009                 .start  = AT91SAM9260_BASE_US2,
1010                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
1011                 .flags  = IORESOURCE_MEM,
1012         },
1013         [1] = {
1014                 .start  = AT91SAM9260_ID_US2,
1015                 .end    = AT91SAM9260_ID_US2,
1016                 .flags  = IORESOURCE_IRQ,
1017         },
1018 };
1019
1020 static struct atmel_uart_data uart2_data = {
1021         .use_dma_tx     = 1,
1022         .use_dma_rx     = 1,
1023 };
1024
1025 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1026
1027 static struct platform_device at91sam9260_uart2_device = {
1028         .name           = "atmel_usart",
1029         .id             = 3,
1030         .dev            = {
1031                                 .dma_mask               = &uart2_dmamask,
1032                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1033                                 .platform_data          = &uart2_data,
1034         },
1035         .resource       = uart2_resources,
1036         .num_resources  = ARRAY_SIZE(uart2_resources),
1037 };
1038
1039 static inline void configure_usart2_pins(unsigned pins)
1040 {
1041         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
1042         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
1043
1044         if (pins & ATMEL_UART_RTS)
1045                 at91_set_A_periph(AT91_PIN_PA4, 0);     /* RTS2 */
1046         if (pins & ATMEL_UART_CTS)
1047                 at91_set_A_periph(AT91_PIN_PA5, 0);     /* CTS2 */
1048 }
1049
1050 static struct resource uart3_resources[] = {
1051         [0] = {
1052                 .start  = AT91SAM9260_BASE_US3,
1053                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
1054                 .flags  = IORESOURCE_MEM,
1055         },
1056         [1] = {
1057                 .start  = AT91SAM9260_ID_US3,
1058                 .end    = AT91SAM9260_ID_US3,
1059                 .flags  = IORESOURCE_IRQ,
1060         },
1061 };
1062
1063 static struct atmel_uart_data uart3_data = {
1064         .use_dma_tx     = 1,
1065         .use_dma_rx     = 1,
1066 };
1067
1068 static u64 uart3_dmamask = DMA_BIT_MASK(32);
1069
1070 static struct platform_device at91sam9260_uart3_device = {
1071         .name           = "atmel_usart",
1072         .id             = 4,
1073         .dev            = {
1074                                 .dma_mask               = &uart3_dmamask,
1075                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1076                                 .platform_data          = &uart3_data,
1077         },
1078         .resource       = uart3_resources,
1079         .num_resources  = ARRAY_SIZE(uart3_resources),
1080 };
1081
1082 static inline void configure_usart3_pins(unsigned pins)
1083 {
1084         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
1085         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
1086
1087         if (pins & ATMEL_UART_RTS)
1088                 at91_set_B_periph(AT91_PIN_PC8, 0);     /* RTS3 */
1089         if (pins & ATMEL_UART_CTS)
1090                 at91_set_B_periph(AT91_PIN_PC10, 0);    /* CTS3 */
1091 }
1092
1093 static struct resource uart4_resources[] = {
1094         [0] = {
1095                 .start  = AT91SAM9260_BASE_US4,
1096                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
1097                 .flags  = IORESOURCE_MEM,
1098         },
1099         [1] = {
1100                 .start  = AT91SAM9260_ID_US4,
1101                 .end    = AT91SAM9260_ID_US4,
1102                 .flags  = IORESOURCE_IRQ,
1103         },
1104 };
1105
1106 static struct atmel_uart_data uart4_data = {
1107         .use_dma_tx     = 1,
1108         .use_dma_rx     = 1,
1109 };
1110
1111 static u64 uart4_dmamask = DMA_BIT_MASK(32);
1112
1113 static struct platform_device at91sam9260_uart4_device = {
1114         .name           = "atmel_usart",
1115         .id             = 5,
1116         .dev            = {
1117                                 .dma_mask               = &uart4_dmamask,
1118                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1119                                 .platform_data          = &uart4_data,
1120         },
1121         .resource       = uart4_resources,
1122         .num_resources  = ARRAY_SIZE(uart4_resources),
1123 };
1124
1125 static inline void configure_usart4_pins(void)
1126 {
1127         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
1128         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
1129 }
1130
1131 static struct resource uart5_resources[] = {
1132         [0] = {
1133                 .start  = AT91SAM9260_BASE_US5,
1134                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
1135                 .flags  = IORESOURCE_MEM,
1136         },
1137         [1] = {
1138                 .start  = AT91SAM9260_ID_US5,
1139                 .end    = AT91SAM9260_ID_US5,
1140                 .flags  = IORESOURCE_IRQ,
1141         },
1142 };
1143
1144 static struct atmel_uart_data uart5_data = {
1145         .use_dma_tx     = 1,
1146         .use_dma_rx     = 1,
1147 };
1148
1149 static u64 uart5_dmamask = DMA_BIT_MASK(32);
1150
1151 static struct platform_device at91sam9260_uart5_device = {
1152         .name           = "atmel_usart",
1153         .id             = 6,
1154         .dev            = {
1155                                 .dma_mask               = &uart5_dmamask,
1156                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1157                                 .platform_data          = &uart5_data,
1158         },
1159         .resource       = uart5_resources,
1160         .num_resources  = ARRAY_SIZE(uart5_resources),
1161 };
1162
1163 static inline void configure_usart5_pins(void)
1164 {
1165         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
1166         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
1167 }
1168
1169 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
1170
1171 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1172 {
1173         struct platform_device *pdev;
1174         struct atmel_uart_data *pdata;
1175
1176         switch (id) {
1177                 case 0:         /* DBGU */
1178                         pdev = &at91sam9260_dbgu_device;
1179                         configure_dbgu_pins();
1180                         break;
1181                 case AT91SAM9260_ID_US0:
1182                         pdev = &at91sam9260_uart0_device;
1183                         configure_usart0_pins(pins);
1184                         break;
1185                 case AT91SAM9260_ID_US1:
1186                         pdev = &at91sam9260_uart1_device;
1187                         configure_usart1_pins(pins);
1188                         break;
1189                 case AT91SAM9260_ID_US2:
1190                         pdev = &at91sam9260_uart2_device;
1191                         configure_usart2_pins(pins);
1192                         break;
1193                 case AT91SAM9260_ID_US3:
1194                         pdev = &at91sam9260_uart3_device;
1195                         configure_usart3_pins(pins);
1196                         break;
1197                 case AT91SAM9260_ID_US4:
1198                         pdev = &at91sam9260_uart4_device;
1199                         configure_usart4_pins();
1200                         break;
1201                 case AT91SAM9260_ID_US5:
1202                         pdev = &at91sam9260_uart5_device;
1203                         configure_usart5_pins();
1204                         break;
1205                 default:
1206                         return;
1207         }
1208         pdata = pdev->dev.platform_data;
1209         pdata->num = portnr;            /* update to mapped ID */
1210
1211         if (portnr < ATMEL_MAX_UART)
1212                 at91_uarts[portnr] = pdev;
1213 }
1214
1215 void __init at91_add_device_serial(void)
1216 {
1217         int i;
1218
1219         for (i = 0; i < ATMEL_MAX_UART; i++) {
1220                 if (at91_uarts[i])
1221                         platform_device_register(at91_uarts[i]);
1222         }
1223 }
1224 #else
1225 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1226 void __init at91_add_device_serial(void) {}
1227 #endif
1228
1229 /* --------------------------------------------------------------------
1230  *  CF/IDE
1231  * -------------------------------------------------------------------- */
1232
1233 #if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE) || \
1234         defined(CONFIG_AT91_CF) || defined(CONFIG_AT91_CF_MODULE)
1235
1236 static struct at91_cf_data cf0_data;
1237
1238 static struct resource cf0_resources[] = {
1239         [0] = {
1240                 .start  = AT91_CHIPSELECT_4,
1241                 .end    = AT91_CHIPSELECT_4 + SZ_256M - 1,
1242                 .flags  = IORESOURCE_MEM,
1243         }
1244 };
1245
1246 static struct platform_device cf0_device = {
1247         .id             = 0,
1248         .dev            = {
1249                                 .platform_data  = &cf0_data,
1250         },
1251         .resource       = cf0_resources,
1252         .num_resources  = ARRAY_SIZE(cf0_resources),
1253 };
1254
1255 static struct at91_cf_data cf1_data;
1256
1257 static struct resource cf1_resources[] = {
1258         [0] = {
1259                 .start  = AT91_CHIPSELECT_5,
1260                 .end    = AT91_CHIPSELECT_5 + SZ_256M - 1,
1261                 .flags  = IORESOURCE_MEM,
1262         }
1263 };
1264
1265 static struct platform_device cf1_device = {
1266         .id             = 1,
1267         .dev            = {
1268                                 .platform_data  = &cf1_data,
1269         },
1270         .resource       = cf1_resources,
1271         .num_resources  = ARRAY_SIZE(cf1_resources),
1272 };
1273
1274 void __init at91_add_device_cf(struct at91_cf_data *data)
1275 {
1276         struct platform_device *pdev;
1277         unsigned long csa;
1278
1279         if (!data)
1280                 return;
1281
1282         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
1283
1284         switch (data->chipselect) {
1285         case 4:
1286                 at91_set_multi_drive(AT91_PIN_PC8, 0);
1287                 at91_set_A_periph(AT91_PIN_PC8, 0);
1288                 csa |= AT91_MATRIX_CS4A_SMC_CF1;
1289                 cf0_data = *data;
1290                 pdev = &cf0_device;
1291                 break;
1292         case 5:
1293                 at91_set_multi_drive(AT91_PIN_PC9, 0);
1294                 at91_set_A_periph(AT91_PIN_PC9, 0);
1295                 csa |= AT91_MATRIX_CS5A_SMC_CF2;
1296                 cf1_data = *data;
1297                 pdev = &cf1_device;
1298                 break;
1299         default:
1300                 printk(KERN_ERR "AT91 CF: bad chip-select requested (%u)\n",
1301                        data->chipselect);
1302                 return;
1303         }
1304
1305         at91_matrix_write(AT91_MATRIX_EBICSA, csa);
1306
1307         if (gpio_is_valid(data->rst_pin)) {
1308                 at91_set_multi_drive(data->rst_pin, 0);
1309                 at91_set_gpio_output(data->rst_pin, 1);
1310         }
1311
1312         if (gpio_is_valid(data->irq_pin)) {
1313                 at91_set_gpio_input(data->irq_pin, 0);
1314                 at91_set_deglitch(data->irq_pin, 1);
1315         }
1316
1317         if (gpio_is_valid(data->det_pin)) {
1318                 at91_set_gpio_input(data->det_pin, 0);
1319                 at91_set_deglitch(data->det_pin, 1);
1320         }
1321
1322         at91_set_B_periph(AT91_PIN_PC6, 0);     /* CFCE1 */
1323         at91_set_B_periph(AT91_PIN_PC7, 0);     /* CFCE2 */
1324         at91_set_A_periph(AT91_PIN_PC10, 0);    /* CFRNW */
1325         at91_set_A_periph(AT91_PIN_PC15, 1);    /* NWAIT */
1326
1327         if (data->flags & AT91_CF_TRUE_IDE)
1328 #if defined(CONFIG_PATA_AT91) || defined(CONFIG_PATA_AT91_MODULE)
1329                 pdev->name = "pata_at91";
1330 #else
1331 #warning "board requires AT91_CF_TRUE_IDE: enable pata_at91"
1332 #endif
1333         else
1334                 pdev->name = "at91_cf";
1335
1336         platform_device_register(pdev);
1337 }
1338
1339 #else
1340 void __init at91_add_device_cf(struct at91_cf_data * data) {}
1341 #endif
1342
1343 /* -------------------------------------------------------------------- */
1344 /*
1345  * These devices are always present and don't need any board-specific
1346  * setup.
1347  */
1348 static int __init at91_add_standard_devices(void)
1349 {
1350         if (of_have_populated_dt())
1351                 return 0;
1352
1353         at91_add_device_rtt();
1354         at91_add_device_watchdog();
1355         at91_add_device_tc();
1356         return 0;
1357 }
1358
1359 arch_initcall(at91_add_standard_devices);