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/platform_device.h>
  17 #include <linux/i2c-gpio.h>
  18
  19 #include <asm/arch/board.h>
  20 #include <asm/arch/gpio.h>
  21 #include <asm/arch/at91sam9260.h>
  22 #include <asm/arch/at91sam9260_matrix.h>
  23 #include <asm/arch/at91sam9_smc.h>
  24
  25 #include "generic.h"
  26
  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 = DMA_BIT_MASK(32);
  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      = DMA_BIT_MASK(32),
  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 = DMA_BIT_MASK(32);
 130 static struct at91_eth_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      = DMA_BIT_MASK(32),
 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 at91_eth_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 at91_eth_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 = DMA_BIT_MASK(32);
 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      = DMA_BIT_MASK(32),
 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(short mmc_id, 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(short mmc_id, 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         [0] = {
 292                 .start  = NAND_BASE,
 293                 .end    = NAND_BASE + SZ_256M - 1,
 294                 .flags  = IORESOURCE_MEM,
 295         },
 296         [1] = {
 297                 .start  = AT91_BASE_SYS + AT91_ECC,
 298                 .end    = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
 299                 .flags  = IORESOURCE_MEM,
 300         }
 301 };
 302
 303 static struct platform_device at91sam9260_nand_device = {
 304         .name           = "at91_nand",
 305         .id             = -1,
 306         .dev            = {
 307                                 .platform_data  = &nand_data,
 308         },
 309         .resource       = nand_resources,
 310         .num_resources  = ARRAY_SIZE(nand_resources),
 311 };
 312
 313 void __init at91_add_device_nand(struct at91_nand_data *data)
 314 {
 315         unsigned long csa, mode;
 316
 317         if (!data)
 318                 return;
 319
 320         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 321         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 322
 323         /* set the bus interface characteristics */
 324         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 325                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 326
 327         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
 328                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
 329
 330         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
 331
 332         if (data->bus_width_16)
 333                 mode = AT91_SMC_DBW_16;
 334         else
 335                 mode = AT91_SMC_DBW_8;
 336         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
 337
 338         /* enable pin */
 339         if (data->enable_pin)
 340                 at91_set_gpio_output(data->enable_pin, 1);
 341
 342         /* ready/busy pin */
 343         if (data->rdy_pin)
 344                 at91_set_gpio_input(data->rdy_pin, 1);
 345
 346         /* card detect pin */
 347         if (data->det_pin)
 348                 at91_set_gpio_input(data->det_pin, 1);
 349
 350         nand_data = *data;
 351         platform_device_register(&at91sam9260_nand_device);
 352 }
 353 #else
 354 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 355 #endif
 356
 357
 358 /* --------------------------------------------------------------------
 359  *  TWI (i2c)
 360  * -------------------------------------------------------------------- */
 361
 362 /*
 363  * Prefer the GPIO code since the TWI controller isn't robust
 364  * (gets overruns and underruns under load) and can only issue
 365  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 366  */
 367
 368 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 369
 370 static struct i2c_gpio_platform_data pdata = {
 371         .sda_pin                = AT91_PIN_PA23,
 372         .sda_is_open_drain      = 1,
 373         .scl_pin                = AT91_PIN_PA24,
 374         .scl_is_open_drain      = 1,
 375         .udelay                 = 2,            /* ~100 kHz */
 376 };
 377
 378 static struct platform_device at91sam9260_twi_device = {
 379         .name                   = "i2c-gpio",
 380         .id                     = -1,
 381         .dev.platform_data      = &pdata,
 382 };
 383
 384 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 385 {
 386         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
 387         at91_set_multi_drive(AT91_PIN_PA23, 1);
 388
 389         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
 390         at91_set_multi_drive(AT91_PIN_PA24, 1);
 391
 392         i2c_register_board_info(0, devices, nr_devices);
 393         platform_device_register(&at91sam9260_twi_device);
 394 }
 395
 396 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 397
 398 static struct resource twi_resources[] = {
 399         [0] = {
 400                 .start  = AT91SAM9260_BASE_TWI,
 401                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 402                 .flags  = IORESOURCE_MEM,
 403         },
 404         [1] = {
 405                 .start  = AT91SAM9260_ID_TWI,
 406                 .end    = AT91SAM9260_ID_TWI,
 407                 .flags  = IORESOURCE_IRQ,
 408         },
 409 };
 410
 411 static struct platform_device at91sam9260_twi_device = {
 412         .name           = "at91_i2c",
 413         .id             = -1,
 414         .resource       = twi_resources,
 415         .num_resources  = ARRAY_SIZE(twi_resources),
 416 };
 417
 418 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 419 {
 420         /* pins used for TWI interface */
 421         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 422         at91_set_multi_drive(AT91_PIN_PA23, 1);
 423
 424         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 425         at91_set_multi_drive(AT91_PIN_PA24, 1);
 426
 427         i2c_register_board_info(0, devices, nr_devices);
 428         platform_device_register(&at91sam9260_twi_device);
 429 }
 430 #else
 431 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 432 #endif
 433
 434
 435 /* --------------------------------------------------------------------
 436  *  SPI
 437  * -------------------------------------------------------------------- */
 438
 439 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 440 static u64 spi_dmamask = DMA_BIT_MASK(32);
 441
 442 static struct resource spi0_resources[] = {
 443         [0] = {
 444                 .start  = AT91SAM9260_BASE_SPI0,
 445                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 446                 .flags  = IORESOURCE_MEM,
 447         },
 448         [1] = {
 449                 .start  = AT91SAM9260_ID_SPI0,
 450                 .end    = AT91SAM9260_ID_SPI0,
 451                 .flags  = IORESOURCE_IRQ,
 452         },
 453 };
 454
 455 static struct platform_device at91sam9260_spi0_device = {
 456         .name           = "atmel_spi",
 457         .id             = 0,
 458         .dev            = {
 459                                 .dma_mask               = &spi_dmamask,
 460                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 461         },
 462         .resource       = spi0_resources,
 463         .num_resources  = ARRAY_SIZE(spi0_resources),
 464 };
 465
 466 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 467
 468 static struct resource spi1_resources[] = {
 469         [0] = {
 470                 .start  = AT91SAM9260_BASE_SPI1,
 471                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 472                 .flags  = IORESOURCE_MEM,
 473         },
 474         [1] = {
 475                 .start  = AT91SAM9260_ID_SPI1,
 476                 .end    = AT91SAM9260_ID_SPI1,
 477                 .flags  = IORESOURCE_IRQ,
 478         },
 479 };
 480
 481 static struct platform_device at91sam9260_spi1_device = {
 482         .name           = "atmel_spi",
 483         .id             = 1,
 484         .dev            = {
 485                                 .dma_mask               = &spi_dmamask,
 486                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 487         },
 488         .resource       = spi1_resources,
 489         .num_resources  = ARRAY_SIZE(spi1_resources),
 490 };
 491
 492 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 493
 494 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 495 {
 496         int i;
 497         unsigned long cs_pin;
 498         short enable_spi0 = 0;
 499         short enable_spi1 = 0;
 500
 501         /* Choose SPI chip-selects */
 502         for (i = 0; i < nr_devices; i++) {
 503                 if (devices[i].controller_data)
 504                         cs_pin = (unsigned long) devices[i].controller_data;
 505                 else if (devices[i].bus_num == 0)
 506                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 507                 else
 508                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 509
 510                 if (devices[i].bus_num == 0)
 511                         enable_spi0 = 1;
 512                 else
 513                         enable_spi1 = 1;
 514
 515                 /* enable chip-select pin */
 516                 at91_set_gpio_output(cs_pin, 1);
 517
 518                 /* pass chip-select pin to driver */
 519                 devices[i].controller_data = (void *) cs_pin;
 520         }
 521
 522         spi_register_board_info(devices, nr_devices);
 523
 524         /* Configure SPI bus(es) */
 525         if (enable_spi0) {
 526                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 527                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 528                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 529
 530                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 531                 platform_device_register(&at91sam9260_spi0_device);
 532         }
 533         if (enable_spi1) {
 534                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 535                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 536                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 537
 538                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 539                 platform_device_register(&at91sam9260_spi1_device);
 540         }
 541 }
 542 #else
 543 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 544 #endif
 545
 546
 547 /* --------------------------------------------------------------------
 548  *  RTT
 549  * -------------------------------------------------------------------- */
 550
 551 static struct resource rtt_resources[] = {
 552         {
 553                 .start  = AT91_BASE_SYS + AT91_RTT,
 554                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
 555                 .flags  = IORESOURCE_MEM,
 556         }
 557 };
 558
 559 static struct platform_device at91sam9260_rtt_device = {
 560         .name           = "at91_rtt",
 561         .id             = -1,
 562         .resource       = rtt_resources,
 563         .num_resources  = ARRAY_SIZE(rtt_resources),
 564 };
 565
 566 static void __init at91_add_device_rtt(void)
 567 {
 568         platform_device_register(&at91sam9260_rtt_device);
 569 }
 570
 571
 572 /* --------------------------------------------------------------------
 573  *  Watchdog
 574  * -------------------------------------------------------------------- */
 575
 576 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
 577 static struct platform_device at91sam9260_wdt_device = {
 578         .name           = "at91_wdt",
 579         .id             = -1,
 580         .num_resources  = 0,
 581 };
 582
 583 static void __init at91_add_device_watchdog(void)
 584 {
 585         platform_device_register(&at91sam9260_wdt_device);
 586 }
 587 #else
 588 static void __init at91_add_device_watchdog(void) {}
 589 #endif
 590
 591
 592 /* --------------------------------------------------------------------
 593  *  SSC -- Synchronous Serial Controller
 594  * -------------------------------------------------------------------- */
 595
 596 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 597 static u64 ssc_dmamask = DMA_BIT_MASK(32);
 598
 599 static struct resource ssc_resources[] = {
 600         [0] = {
 601                 .start  = AT91SAM9260_BASE_SSC,
 602                 .end    = AT91SAM9260_BASE_SSC + SZ_16K - 1,
 603                 .flags  = IORESOURCE_MEM,
 604         },
 605         [1] = {
 606                 .start  = AT91SAM9260_ID_SSC,
 607                 .end    = AT91SAM9260_ID_SSC,
 608                 .flags  = IORESOURCE_IRQ,
 609         },
 610 };
 611
 612 static struct platform_device at91sam9260_ssc_device = {
 613         .name   = "ssc",
 614         .id     = 0,
 615         .dev    = {
 616                 .dma_mask               = &ssc_dmamask,
 617                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 618         },
 619         .resource       = ssc_resources,
 620         .num_resources  = ARRAY_SIZE(ssc_resources),
 621 };
 622
 623 static inline void configure_ssc_pins(unsigned pins)
 624 {
 625         if (pins & ATMEL_SSC_TF)
 626                 at91_set_A_periph(AT91_PIN_PB17, 1);
 627         if (pins & ATMEL_SSC_TK)
 628                 at91_set_A_periph(AT91_PIN_PB16, 1);
 629         if (pins & ATMEL_SSC_TD)
 630                 at91_set_A_periph(AT91_PIN_PB18, 1);
 631         if (pins & ATMEL_SSC_RD)
 632                 at91_set_A_periph(AT91_PIN_PB19, 1);
 633         if (pins & ATMEL_SSC_RK)
 634                 at91_set_A_periph(AT91_PIN_PB20, 1);
 635         if (pins & ATMEL_SSC_RF)
 636                 at91_set_A_periph(AT91_PIN_PB21, 1);
 637 }
 638
 639 /*
 640  * SSC controllers are accessed through library code, instead of any
 641  * kind of all-singing/all-dancing driver.  For example one could be
 642  * used by a particular I2S audio codec's driver, while another one
 643  * on the same system might be used by a custom data capture driver.
 644  */
 645 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 646 {
 647         struct platform_device *pdev;
 648
 649         /*
 650          * NOTE: caller is responsible for passing information matching
 651          * "pins" to whatever will be using each particular controller.
 652          */
 653         switch (id) {
 654         case AT91SAM9260_ID_SSC:
 655                 pdev = &at91sam9260_ssc_device;
 656                 configure_ssc_pins(pins);
 657                 at91_clock_associate("ssc_clk", &pdev->dev, "pclk");
 658                 break;
 659         default:
 660                 return;
 661         }
 662
 663         platform_device_register(pdev);
 664 }
 665
 666 #else
 667 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 668 #endif
 669
 670
 671 /* --------------------------------------------------------------------
 672  *  UART
 673  * -------------------------------------------------------------------- */
 674 #if defined(CONFIG_SERIAL_ATMEL)
 675 static struct resource dbgu_resources[] = {
 676         [0] = {
 677                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 678                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 679                 .flags  = IORESOURCE_MEM,
 680         },
 681         [1] = {
 682                 .start  = AT91_ID_SYS,
 683                 .end    = AT91_ID_SYS,
 684                 .flags  = IORESOURCE_IRQ,
 685         },
 686 };
 687
 688 static struct atmel_uart_data dbgu_data = {
 689         .use_dma_tx     = 0,
 690         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 691         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 692 };
 693
 694 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 695
 696 static struct platform_device at91sam9260_dbgu_device = {
 697         .name           = "atmel_usart",
 698         .id             = 0,
 699         .dev            = {
 700                                 .dma_mask               = &dbgu_dmamask,
 701                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 702                                 .platform_data          = &dbgu_data,
 703         },
 704         .resource       = dbgu_resources,
 705         .num_resources  = ARRAY_SIZE(dbgu_resources),
 706 };
 707
 708 static inline void configure_dbgu_pins(void)
 709 {
 710         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 711         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 712 }
 713
 714 static struct resource uart0_resources[] = {
 715         [0] = {
 716                 .start  = AT91SAM9260_BASE_US0,
 717                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 718                 .flags  = IORESOURCE_MEM,
 719         },
 720         [1] = {
 721                 .start  = AT91SAM9260_ID_US0,
 722                 .end    = AT91SAM9260_ID_US0,
 723                 .flags  = IORESOURCE_IRQ,
 724         },
 725 };
 726
 727 static struct atmel_uart_data uart0_data = {
 728         .use_dma_tx     = 1,
 729         .use_dma_rx     = 1,
 730 };
 731
 732 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 733
 734 static struct platform_device at91sam9260_uart0_device = {
 735         .name           = "atmel_usart",
 736         .id             = 1,
 737         .dev            = {
 738                                 .dma_mask               = &uart0_dmamask,
 739                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 740                                 .platform_data          = &uart0_data,
 741         },
 742         .resource       = uart0_resources,
 743         .num_resources  = ARRAY_SIZE(uart0_resources),
 744 };
 745
 746 static inline void configure_usart0_pins(unsigned pins)
 747 {
 748         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 749         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 750
 751         if (pins & ATMEL_UART_RTS)
 752                 at91_set_A_periph(AT91_PIN_PB26, 0);    /* RTS0 */
 753         if (pins & ATMEL_UART_CTS)
 754                 at91_set_A_periph(AT91_PIN_PB27, 0);    /* CTS0 */
 755         if (pins & ATMEL_UART_DTR)
 756                 at91_set_A_periph(AT91_PIN_PB24, 0);    /* DTR0 */
 757         if (pins & ATMEL_UART_DSR)
 758                 at91_set_A_periph(AT91_PIN_PB22, 0);    /* DSR0 */
 759         if (pins & ATMEL_UART_DCD)
 760                 at91_set_A_periph(AT91_PIN_PB23, 0);    /* DCD0 */
 761         if (pins & ATMEL_UART_RI)
 762                 at91_set_A_periph(AT91_PIN_PB25, 0);    /* RI0 */
 763 }
 764
 765 static struct resource uart1_resources[] = {
 766         [0] = {
 767                 .start  = AT91SAM9260_BASE_US1,
 768                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 769                 .flags  = IORESOURCE_MEM,
 770         },
 771         [1] = {
 772                 .start  = AT91SAM9260_ID_US1,
 773                 .end    = AT91SAM9260_ID_US1,
 774                 .flags  = IORESOURCE_IRQ,
 775         },
 776 };
 777
 778 static struct atmel_uart_data uart1_data = {
 779         .use_dma_tx     = 1,
 780         .use_dma_rx     = 1,
 781 };
 782
 783 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 784
 785 static struct platform_device at91sam9260_uart1_device = {
 786         .name           = "atmel_usart",
 787         .id             = 2,
 788         .dev            = {
 789                                 .dma_mask               = &uart1_dmamask,
 790                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 791                                 .platform_data          = &uart1_data,
 792         },
 793         .resource       = uart1_resources,
 794         .num_resources  = ARRAY_SIZE(uart1_resources),
 795 };
 796
 797 static inline void configure_usart1_pins(unsigned pins)
 798 {
 799         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 800         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 801
 802         if (pins & ATMEL_UART_RTS)
 803                 at91_set_A_periph(AT91_PIN_PB28, 0);    /* RTS1 */
 804         if (pins & ATMEL_UART_CTS)
 805                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* CTS1 */
 806 }
 807
 808 static struct resource uart2_resources[] = {
 809         [0] = {
 810                 .start  = AT91SAM9260_BASE_US2,
 811                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 812                 .flags  = IORESOURCE_MEM,
 813         },
 814         [1] = {
 815                 .start  = AT91SAM9260_ID_US2,
 816                 .end    = AT91SAM9260_ID_US2,
 817                 .flags  = IORESOURCE_IRQ,
 818         },
 819 };
 820
 821 static struct atmel_uart_data uart2_data = {
 822         .use_dma_tx     = 1,
 823         .use_dma_rx     = 1,
 824 };
 825
 826 static u64 uart2_dmamask = DMA_BIT_MASK(32);
 827
 828 static struct platform_device at91sam9260_uart2_device = {
 829         .name           = "atmel_usart",
 830         .id             = 3,
 831         .dev            = {
 832                                 .dma_mask               = &uart2_dmamask,
 833                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 834                                 .platform_data          = &uart2_data,
 835         },
 836         .resource       = uart2_resources,
 837         .num_resources  = ARRAY_SIZE(uart2_resources),
 838 };
 839
 840 static inline void configure_usart2_pins(unsigned pins)
 841 {
 842         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 843         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 844
 845         if (pins & ATMEL_UART_RTS)
 846                 at91_set_A_periph(AT91_PIN_PA4, 0);     /* RTS2 */
 847         if (pins & ATMEL_UART_CTS)
 848                 at91_set_A_periph(AT91_PIN_PA5, 0);     /* CTS2 */
 849 }
 850
 851 static struct resource uart3_resources[] = {
 852         [0] = {
 853                 .start  = AT91SAM9260_BASE_US3,
 854                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 855                 .flags  = IORESOURCE_MEM,
 856         },
 857         [1] = {
 858                 .start  = AT91SAM9260_ID_US3,
 859                 .end    = AT91SAM9260_ID_US3,
 860                 .flags  = IORESOURCE_IRQ,
 861         },
 862 };
 863
 864 static struct atmel_uart_data uart3_data = {
 865         .use_dma_tx     = 1,
 866         .use_dma_rx     = 1,
 867 };
 868
 869 static u64 uart3_dmamask = DMA_BIT_MASK(32);
 870
 871 static struct platform_device at91sam9260_uart3_device = {
 872         .name           = "atmel_usart",
 873         .id             = 4,
 874         .dev            = {
 875                                 .dma_mask               = &uart3_dmamask,
 876                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 877                                 .platform_data          = &uart3_data,
 878         },
 879         .resource       = uart3_resources,
 880         .num_resources  = ARRAY_SIZE(uart3_resources),
 881 };
 882
 883 static inline void configure_usart3_pins(unsigned pins)
 884 {
 885         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 886         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 887
 888         if (pins & ATMEL_UART_RTS)
 889                 at91_set_B_periph(AT91_PIN_PC8, 0);     /* RTS3 */
 890         if (pins & ATMEL_UART_CTS)
 891                 at91_set_B_periph(AT91_PIN_PC10, 0);    /* CTS3 */
 892 }
 893
 894 static struct resource uart4_resources[] = {
 895         [0] = {
 896                 .start  = AT91SAM9260_BASE_US4,
 897                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 898                 .flags  = IORESOURCE_MEM,
 899         },
 900         [1] = {
 901                 .start  = AT91SAM9260_ID_US4,
 902                 .end    = AT91SAM9260_ID_US4,
 903                 .flags  = IORESOURCE_IRQ,
 904         },
 905 };
 906
 907 static struct atmel_uart_data uart4_data = {
 908         .use_dma_tx     = 1,
 909         .use_dma_rx     = 1,
 910 };
 911
 912 static u64 uart4_dmamask = DMA_BIT_MASK(32);
 913
 914 static struct platform_device at91sam9260_uart4_device = {
 915         .name           = "atmel_usart",
 916         .id             = 5,
 917         .dev            = {
 918                                 .dma_mask               = &uart4_dmamask,
 919                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 920                                 .platform_data          = &uart4_data,
 921         },
 922         .resource       = uart4_resources,
 923         .num_resources  = ARRAY_SIZE(uart4_resources),
 924 };
 925
 926 static inline void configure_usart4_pins(void)
 927 {
 928         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 929         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 930 }
 931
 932 static struct resource uart5_resources[] = {
 933         [0] = {
 934                 .start  = AT91SAM9260_BASE_US5,
 935                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 936                 .flags  = IORESOURCE_MEM,
 937         },
 938         [1] = {
 939                 .start  = AT91SAM9260_ID_US5,
 940                 .end    = AT91SAM9260_ID_US5,
 941                 .flags  = IORESOURCE_IRQ,
 942         },
 943 };
 944
 945 static struct atmel_uart_data uart5_data = {
 946         .use_dma_tx     = 1,
 947         .use_dma_rx     = 1,
 948 };
 949
 950 static u64 uart5_dmamask = DMA_BIT_MASK(32);
 951
 952 static struct platform_device at91sam9260_uart5_device = {
 953         .name           = "atmel_usart",
 954         .id             = 6,
 955         .dev            = {
 956                                 .dma_mask               = &uart5_dmamask,
 957                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 958                                 .platform_data          = &uart5_data,
 959         },
 960         .resource       = uart5_resources,
 961         .num_resources  = ARRAY_SIZE(uart5_resources),
 962 };
 963
 964 static inline void configure_usart5_pins(void)
 965 {
 966         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 967         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 968 }
 969
 970 static struct platform_device *at91_uarts[ATMEL_MAX_UART];      /* the UARTs to use */
 971 struct platform_device *atmel_default_console_device;   /* the serial console device */
 972
 973 void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 974 {
 975         int i;
 976
 977         /* Fill in list of supported UARTs */
 978         for (i = 0; i < config->nr_tty; i++) {
 979                 switch (config->tty_map[i]) {
 980                         case 0:
 981                                 configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI);
 982                                 at91_uarts[i] = &at91sam9260_uart0_device;
 983                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 984                                 break;
 985                         case 1:
 986                                 configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 987                                 at91_uarts[i] = &at91sam9260_uart1_device;
 988                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 989                                 break;
 990                         case 2:
 991                                 configure_usart2_pins(0);
 992                                 at91_uarts[i] = &at91sam9260_uart2_device;
 993                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 994                                 break;
 995                         case 3:
 996                                 configure_usart3_pins(0);
 997                                 at91_uarts[i] = &at91sam9260_uart3_device;
 998                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 999                                 break;
1000                         case 4:
1001                                 configure_usart4_pins();
1002                                 at91_uarts[i] = &at91sam9260_uart4_device;
1003                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
1004                                 break;
1005                         case 5:
1006                                 configure_usart5_pins();
1007                                 at91_uarts[i] = &at91sam9260_uart5_device;
1008                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
1009                                 break;
1010                         case 6:
1011                                 configure_dbgu_pins();
1012                                 at91_uarts[i] = &at91sam9260_dbgu_device;
1013                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
1014                                 break;
1015                         default:
1016                                 continue;
1017                 }
1018                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
1019         }
1020
1021         /* Set serial console device */
1022         if (config->console_tty < ATMEL_MAX_UART)
1023                 atmel_default_console_device = at91_uarts[config->console_tty];
1024         if (!atmel_default_console_device)
1025                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1026 }
1027
1028 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1029 {
1030         struct platform_device *pdev;
1031
1032         switch (id) {
1033                 case 0:         /* DBGU */
1034                         pdev = &at91sam9260_dbgu_device;
1035                         configure_dbgu_pins();
1036                         at91_clock_associate("mck", &pdev->dev, "usart");
1037                         break;
1038                 case AT91SAM9260_ID_US0:
1039                         pdev = &at91sam9260_uart0_device;
1040                         configure_usart0_pins(pins);
1041                         at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1042                         break;
1043                 case AT91SAM9260_ID_US1:
1044                         pdev = &at91sam9260_uart1_device;
1045                         configure_usart1_pins(pins);
1046                         at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1047                         break;
1048                 case AT91SAM9260_ID_US2:
1049                         pdev = &at91sam9260_uart2_device;
1050                         configure_usart2_pins(pins);
1051                         at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1052                         break;
1053                 case AT91SAM9260_ID_US3:
1054                         pdev = &at91sam9260_uart3_device;
1055                         configure_usart3_pins(pins);
1056                         at91_clock_associate("usart3_clk", &pdev->dev, "usart");
1057                         break;
1058                 case AT91SAM9260_ID_US4:
1059                         pdev = &at91sam9260_uart4_device;
1060                         configure_usart4_pins();
1061                         at91_clock_associate("usart4_clk", &pdev->dev, "usart");
1062                         break;
1063                 case AT91SAM9260_ID_US5:
1064                         pdev = &at91sam9260_uart5_device;
1065                         configure_usart5_pins();
1066                         at91_clock_associate("usart5_clk", &pdev->dev, "usart");
1067                         break;
1068                 default:
1069                         return;
1070         }
1071         pdev->id = portnr;              /* update to mapped ID */
1072
1073         if (portnr < ATMEL_MAX_UART)
1074                 at91_uarts[portnr] = pdev;
1075 }
1076
1077 void __init at91_set_serial_console(unsigned portnr)
1078 {
1079         if (portnr < ATMEL_MAX_UART)
1080                 atmel_default_console_device = at91_uarts[portnr];
1081         if (!atmel_default_console_device)
1082                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1083 }
1084
1085 void __init at91_add_device_serial(void)
1086 {
1087         int i;
1088
1089         for (i = 0; i < ATMEL_MAX_UART; i++) {
1090                 if (at91_uarts[i])
1091                         platform_device_register(at91_uarts[i]);
1092         }
1093 }
1094 #else
1095 void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
1096 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1097 void __init at91_set_serial_console(unsigned portnr) {}
1098 void __init at91_add_device_serial(void) {}
1099 #endif
1100
1101
1102 /* -------------------------------------------------------------------- */
1103 /*
1104  * These devices are always present and don't need any board-specific
1105  * setup.
1106  */
1107 static int __init at91_add_standard_devices(void)
1108 {
1109         at91_add_device_rtt();
1110         at91_add_device_watchdog();
1111         return 0;
1112 }
1113
1114 arch_initcall(at91_add_standard_devices);