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/at91sam926x_mc.h>
  23 #include <asm/arch/at91sam9260_matrix.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         {
 292                 .start  = NAND_BASE,
 293                 .end    = NAND_BASE + SZ_256M - 1,
 294                 .flags  = IORESOURCE_MEM,
 295         }
 296 };
 297
 298 static struct platform_device at91sam9260_nand_device = {
 299         .name           = "at91_nand",
 300         .id             = -1,
 301         .dev            = {
 302                                 .platform_data  = &nand_data,
 303         },
 304         .resource       = nand_resources,
 305         .num_resources  = ARRAY_SIZE(nand_resources),
 306 };
 307
 308 void __init at91_add_device_nand(struct at91_nand_data *data)
 309 {
 310         unsigned long csa, mode;
 311
 312         if (!data)
 313                 return;
 314
 315         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 316         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 317
 318         /* set the bus interface characteristics */
 319         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 320                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 321
 322         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
 323                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
 324
 325         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
 326
 327         if (data->bus_width_16)
 328                 mode = AT91_SMC_DBW_16;
 329         else
 330                 mode = AT91_SMC_DBW_8;
 331         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
 332
 333         /* enable pin */
 334         if (data->enable_pin)
 335                 at91_set_gpio_output(data->enable_pin, 1);
 336
 337         /* ready/busy pin */
 338         if (data->rdy_pin)
 339                 at91_set_gpio_input(data->rdy_pin, 1);
 340
 341         /* card detect pin */
 342         if (data->det_pin)
 343                 at91_set_gpio_input(data->det_pin, 1);
 344
 345         nand_data = *data;
 346         platform_device_register(&at91sam9260_nand_device);
 347 }
 348 #else
 349 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 350 #endif
 351
 352
 353 /* --------------------------------------------------------------------
 354  *  TWI (i2c)
 355  * -------------------------------------------------------------------- */
 356
 357 /*
 358  * Prefer the GPIO code since the TWI controller isn't robust
 359  * (gets overruns and underruns under load) and can only issue
 360  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 361  */
 362
 363 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 364
 365 static struct i2c_gpio_platform_data pdata = {
 366         .sda_pin                = AT91_PIN_PA23,
 367         .sda_is_open_drain      = 1,
 368         .scl_pin                = AT91_PIN_PA24,
 369         .scl_is_open_drain      = 1,
 370         .udelay                 = 2,            /* ~100 kHz */
 371 };
 372
 373 static struct platform_device at91sam9260_twi_device = {
 374         .name                   = "i2c-gpio",
 375         .id                     = -1,
 376         .dev.platform_data      = &pdata,
 377 };
 378
 379 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 380 {
 381         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
 382         at91_set_multi_drive(AT91_PIN_PA23, 1);
 383
 384         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
 385         at91_set_multi_drive(AT91_PIN_PA24, 1);
 386
 387         i2c_register_board_info(0, devices, nr_devices);
 388         platform_device_register(&at91sam9260_twi_device);
 389 }
 390
 391 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 392
 393 static struct resource twi_resources[] = {
 394         [0] = {
 395                 .start  = AT91SAM9260_BASE_TWI,
 396                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 397                 .flags  = IORESOURCE_MEM,
 398         },
 399         [1] = {
 400                 .start  = AT91SAM9260_ID_TWI,
 401                 .end    = AT91SAM9260_ID_TWI,
 402                 .flags  = IORESOURCE_IRQ,
 403         },
 404 };
 405
 406 static struct platform_device at91sam9260_twi_device = {
 407         .name           = "at91_i2c",
 408         .id             = -1,
 409         .resource       = twi_resources,
 410         .num_resources  = ARRAY_SIZE(twi_resources),
 411 };
 412
 413 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 414 {
 415         /* pins used for TWI interface */
 416         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 417         at91_set_multi_drive(AT91_PIN_PA23, 1);
 418
 419         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 420         at91_set_multi_drive(AT91_PIN_PA24, 1);
 421
 422         i2c_register_board_info(0, devices, nr_devices);
 423         platform_device_register(&at91sam9260_twi_device);
 424 }
 425 #else
 426 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 427 #endif
 428
 429
 430 /* --------------------------------------------------------------------
 431  *  SPI
 432  * -------------------------------------------------------------------- */
 433
 434 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 435 static u64 spi_dmamask = DMA_BIT_MASK(32);
 436
 437 static struct resource spi0_resources[] = {
 438         [0] = {
 439                 .start  = AT91SAM9260_BASE_SPI0,
 440                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 441                 .flags  = IORESOURCE_MEM,
 442         },
 443         [1] = {
 444                 .start  = AT91SAM9260_ID_SPI0,
 445                 .end    = AT91SAM9260_ID_SPI0,
 446                 .flags  = IORESOURCE_IRQ,
 447         },
 448 };
 449
 450 static struct platform_device at91sam9260_spi0_device = {
 451         .name           = "atmel_spi",
 452         .id             = 0,
 453         .dev            = {
 454                                 .dma_mask               = &spi_dmamask,
 455                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 456         },
 457         .resource       = spi0_resources,
 458         .num_resources  = ARRAY_SIZE(spi0_resources),
 459 };
 460
 461 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 462
 463 static struct resource spi1_resources[] = {
 464         [0] = {
 465                 .start  = AT91SAM9260_BASE_SPI1,
 466                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 467                 .flags  = IORESOURCE_MEM,
 468         },
 469         [1] = {
 470                 .start  = AT91SAM9260_ID_SPI1,
 471                 .end    = AT91SAM9260_ID_SPI1,
 472                 .flags  = IORESOURCE_IRQ,
 473         },
 474 };
 475
 476 static struct platform_device at91sam9260_spi1_device = {
 477         .name           = "atmel_spi",
 478         .id             = 1,
 479         .dev            = {
 480                                 .dma_mask               = &spi_dmamask,
 481                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 482         },
 483         .resource       = spi1_resources,
 484         .num_resources  = ARRAY_SIZE(spi1_resources),
 485 };
 486
 487 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 488
 489 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 490 {
 491         int i;
 492         unsigned long cs_pin;
 493         short enable_spi0 = 0;
 494         short enable_spi1 = 0;
 495
 496         /* Choose SPI chip-selects */
 497         for (i = 0; i < nr_devices; i++) {
 498                 if (devices[i].controller_data)
 499                         cs_pin = (unsigned long) devices[i].controller_data;
 500                 else if (devices[i].bus_num == 0)
 501                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 502                 else
 503                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 504
 505                 if (devices[i].bus_num == 0)
 506                         enable_spi0 = 1;
 507                 else
 508                         enable_spi1 = 1;
 509
 510                 /* enable chip-select pin */
 511                 at91_set_gpio_output(cs_pin, 1);
 512
 513                 /* pass chip-select pin to driver */
 514                 devices[i].controller_data = (void *) cs_pin;
 515         }
 516
 517         spi_register_board_info(devices, nr_devices);
 518
 519         /* Configure SPI bus(es) */
 520         if (enable_spi0) {
 521                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 522                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 523                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 524
 525                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 526                 platform_device_register(&at91sam9260_spi0_device);
 527         }
 528         if (enable_spi1) {
 529                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 530                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 531                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 532
 533                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 534                 platform_device_register(&at91sam9260_spi1_device);
 535         }
 536 }
 537 #else
 538 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 539 #endif
 540
 541
 542 /* --------------------------------------------------------------------
 543  *  RTT
 544  * -------------------------------------------------------------------- */
 545
 546 static struct resource rtt_resources[] = {
 547         {
 548                 .start  = AT91_BASE_SYS + AT91_RTT,
 549                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
 550                 .flags  = IORESOURCE_MEM,
 551         }
 552 };
 553
 554 static struct platform_device at91sam9260_rtt_device = {
 555         .name           = "at91_rtt",
 556         .id             = -1,
 557         .resource       = rtt_resources,
 558         .num_resources  = ARRAY_SIZE(rtt_resources),
 559 };
 560
 561 static void __init at91_add_device_rtt(void)
 562 {
 563         platform_device_register(&at91sam9260_rtt_device);
 564 }
 565
 566
 567 /* --------------------------------------------------------------------
 568  *  Watchdog
 569  * -------------------------------------------------------------------- */
 570
 571 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
 572 static struct platform_device at91sam9260_wdt_device = {
 573         .name           = "at91_wdt",
 574         .id             = -1,
 575         .num_resources  = 0,
 576 };
 577
 578 static void __init at91_add_device_watchdog(void)
 579 {
 580         platform_device_register(&at91sam9260_wdt_device);
 581 }
 582 #else
 583 static void __init at91_add_device_watchdog(void) {}
 584 #endif
 585
 586
 587 /* --------------------------------------------------------------------
 588  *  SSC -- Synchronous Serial Controller
 589  * -------------------------------------------------------------------- */
 590
 591 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 592 static u64 ssc_dmamask = DMA_BIT_MASK(32);
 593
 594 static struct resource ssc_resources[] = {
 595         [0] = {
 596                 .start  = AT91SAM9260_BASE_SSC,
 597                 .end    = AT91SAM9260_BASE_SSC + SZ_16K - 1,
 598                 .flags  = IORESOURCE_MEM,
 599         },
 600         [1] = {
 601                 .start  = AT91SAM9260_ID_SSC,
 602                 .end    = AT91SAM9260_ID_SSC,
 603                 .flags  = IORESOURCE_IRQ,
 604         },
 605 };
 606
 607 static struct platform_device at91sam9260_ssc_device = {
 608         .name   = "ssc",
 609         .id     = 0,
 610         .dev    = {
 611                 .dma_mask               = &ssc_dmamask,
 612                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 613         },
 614         .resource       = ssc_resources,
 615         .num_resources  = ARRAY_SIZE(ssc_resources),
 616 };
 617
 618 static inline void configure_ssc_pins(unsigned pins)
 619 {
 620         if (pins & ATMEL_SSC_TF)
 621                 at91_set_A_periph(AT91_PIN_PB17, 1);
 622         if (pins & ATMEL_SSC_TK)
 623                 at91_set_A_periph(AT91_PIN_PB16, 1);
 624         if (pins & ATMEL_SSC_TD)
 625                 at91_set_A_periph(AT91_PIN_PB18, 1);
 626         if (pins & ATMEL_SSC_RD)
 627                 at91_set_A_periph(AT91_PIN_PB19, 1);
 628         if (pins & ATMEL_SSC_RK)
 629                 at91_set_A_periph(AT91_PIN_PB20, 1);
 630         if (pins & ATMEL_SSC_RF)
 631                 at91_set_A_periph(AT91_PIN_PB21, 1);
 632 }
 633
 634 /*
 635  * SSC controllers are accessed through library code, instead of any
 636  * kind of all-singing/all-dancing driver.  For example one could be
 637  * used by a particular I2S audio codec's driver, while another one
 638  * on the same system might be used by a custom data capture driver.
 639  */
 640 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 641 {
 642         struct platform_device *pdev;
 643
 644         /*
 645          * NOTE: caller is responsible for passing information matching
 646          * "pins" to whatever will be using each particular controller.
 647          */
 648         switch (id) {
 649         case AT91SAM9260_ID_SSC:
 650                 pdev = &at91sam9260_ssc_device;
 651                 configure_ssc_pins(pins);
 652                 at91_clock_associate("ssc_clk", &pdev->dev, "pclk");
 653                 break;
 654         default:
 655                 return;
 656         }
 657
 658         platform_device_register(pdev);
 659 }
 660
 661 #else
 662 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 663 #endif
 664
 665
 666 /* --------------------------------------------------------------------
 667  *  UART
 668  * -------------------------------------------------------------------- */
 669 #if defined(CONFIG_SERIAL_ATMEL)
 670 static struct resource dbgu_resources[] = {
 671         [0] = {
 672                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 673                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 674                 .flags  = IORESOURCE_MEM,
 675         },
 676         [1] = {
 677                 .start  = AT91_ID_SYS,
 678                 .end    = AT91_ID_SYS,
 679                 .flags  = IORESOURCE_IRQ,
 680         },
 681 };
 682
 683 static struct atmel_uart_data dbgu_data = {
 684         .use_dma_tx     = 0,
 685         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 686         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 687 };
 688
 689 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 690
 691 static struct platform_device at91sam9260_dbgu_device = {
 692         .name           = "atmel_usart",
 693         .id             = 0,
 694         .dev            = {
 695                                 .dma_mask               = &dbgu_dmamask,
 696                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 697                                 .platform_data          = &dbgu_data,
 698         },
 699         .resource       = dbgu_resources,
 700         .num_resources  = ARRAY_SIZE(dbgu_resources),
 701 };
 702
 703 static inline void configure_dbgu_pins(void)
 704 {
 705         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 706         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 707 }
 708
 709 static struct resource uart0_resources[] = {
 710         [0] = {
 711                 .start  = AT91SAM9260_BASE_US0,
 712                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 713                 .flags  = IORESOURCE_MEM,
 714         },
 715         [1] = {
 716                 .start  = AT91SAM9260_ID_US0,
 717                 .end    = AT91SAM9260_ID_US0,
 718                 .flags  = IORESOURCE_IRQ,
 719         },
 720 };
 721
 722 static struct atmel_uart_data uart0_data = {
 723         .use_dma_tx     = 1,
 724         .use_dma_rx     = 1,
 725 };
 726
 727 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 728
 729 static struct platform_device at91sam9260_uart0_device = {
 730         .name           = "atmel_usart",
 731         .id             = 1,
 732         .dev            = {
 733                                 .dma_mask               = &uart0_dmamask,
 734                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 735                                 .platform_data          = &uart0_data,
 736         },
 737         .resource       = uart0_resources,
 738         .num_resources  = ARRAY_SIZE(uart0_resources),
 739 };
 740
 741 static inline void configure_usart0_pins(unsigned pins)
 742 {
 743         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 744         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 745
 746         if (pins & ATMEL_UART_RTS)
 747                 at91_set_A_periph(AT91_PIN_PB26, 0);    /* RTS0 */
 748         if (pins & ATMEL_UART_CTS)
 749                 at91_set_A_periph(AT91_PIN_PB27, 0);    /* CTS0 */
 750         if (pins & ATMEL_UART_DTR)
 751                 at91_set_A_periph(AT91_PIN_PB24, 0);    /* DTR0 */
 752         if (pins & ATMEL_UART_DSR)
 753                 at91_set_A_periph(AT91_PIN_PB22, 0);    /* DSR0 */
 754         if (pins & ATMEL_UART_DCD)
 755                 at91_set_A_periph(AT91_PIN_PB23, 0);    /* DCD0 */
 756         if (pins & ATMEL_UART_RI)
 757                 at91_set_A_periph(AT91_PIN_PB25, 0);    /* RI0 */
 758 }
 759
 760 static struct resource uart1_resources[] = {
 761         [0] = {
 762                 .start  = AT91SAM9260_BASE_US1,
 763                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 764                 .flags  = IORESOURCE_MEM,
 765         },
 766         [1] = {
 767                 .start  = AT91SAM9260_ID_US1,
 768                 .end    = AT91SAM9260_ID_US1,
 769                 .flags  = IORESOURCE_IRQ,
 770         },
 771 };
 772
 773 static struct atmel_uart_data uart1_data = {
 774         .use_dma_tx     = 1,
 775         .use_dma_rx     = 1,
 776 };
 777
 778 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 779
 780 static struct platform_device at91sam9260_uart1_device = {
 781         .name           = "atmel_usart",
 782         .id             = 2,
 783         .dev            = {
 784                                 .dma_mask               = &uart1_dmamask,
 785                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 786                                 .platform_data          = &uart1_data,
 787         },
 788         .resource       = uart1_resources,
 789         .num_resources  = ARRAY_SIZE(uart1_resources),
 790 };
 791
 792 static inline void configure_usart1_pins(unsigned pins)
 793 {
 794         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 795         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 796
 797         if (pins & ATMEL_UART_RTS)
 798                 at91_set_A_periph(AT91_PIN_PB28, 0);    /* RTS1 */
 799         if (pins & ATMEL_UART_CTS)
 800                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* CTS1 */
 801 }
 802
 803 static struct resource uart2_resources[] = {
 804         [0] = {
 805                 .start  = AT91SAM9260_BASE_US2,
 806                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 807                 .flags  = IORESOURCE_MEM,
 808         },
 809         [1] = {
 810                 .start  = AT91SAM9260_ID_US2,
 811                 .end    = AT91SAM9260_ID_US2,
 812                 .flags  = IORESOURCE_IRQ,
 813         },
 814 };
 815
 816 static struct atmel_uart_data uart2_data = {
 817         .use_dma_tx     = 1,
 818         .use_dma_rx     = 1,
 819 };
 820
 821 static u64 uart2_dmamask = DMA_BIT_MASK(32);
 822
 823 static struct platform_device at91sam9260_uart2_device = {
 824         .name           = "atmel_usart",
 825         .id             = 3,
 826         .dev            = {
 827                                 .dma_mask               = &uart2_dmamask,
 828                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 829                                 .platform_data          = &uart2_data,
 830         },
 831         .resource       = uart2_resources,
 832         .num_resources  = ARRAY_SIZE(uart2_resources),
 833 };
 834
 835 static inline void configure_usart2_pins(unsigned pins)
 836 {
 837         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 838         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 839
 840         if (pins & ATMEL_UART_RTS)
 841                 at91_set_A_periph(AT91_PIN_PA4, 0);     /* RTS2 */
 842         if (pins & ATMEL_UART_CTS)
 843                 at91_set_A_periph(AT91_PIN_PA5, 0);     /* CTS2 */
 844 }
 845
 846 static struct resource uart3_resources[] = {
 847         [0] = {
 848                 .start  = AT91SAM9260_BASE_US3,
 849                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 850                 .flags  = IORESOURCE_MEM,
 851         },
 852         [1] = {
 853                 .start  = AT91SAM9260_ID_US3,
 854                 .end    = AT91SAM9260_ID_US3,
 855                 .flags  = IORESOURCE_IRQ,
 856         },
 857 };
 858
 859 static struct atmel_uart_data uart3_data = {
 860         .use_dma_tx     = 1,
 861         .use_dma_rx     = 1,
 862 };
 863
 864 static u64 uart3_dmamask = DMA_BIT_MASK(32);
 865
 866 static struct platform_device at91sam9260_uart3_device = {
 867         .name           = "atmel_usart",
 868         .id             = 4,
 869         .dev            = {
 870                                 .dma_mask               = &uart3_dmamask,
 871                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 872                                 .platform_data          = &uart3_data,
 873         },
 874         .resource       = uart3_resources,
 875         .num_resources  = ARRAY_SIZE(uart3_resources),
 876 };
 877
 878 static inline void configure_usart3_pins(unsigned pins)
 879 {
 880         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 881         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 882
 883         if (pins & ATMEL_UART_RTS)
 884                 at91_set_B_periph(AT91_PIN_PC8, 0);     /* RTS3 */
 885         if (pins & ATMEL_UART_CTS)
 886                 at91_set_B_periph(AT91_PIN_PC10, 0);    /* CTS3 */
 887 }
 888
 889 static struct resource uart4_resources[] = {
 890         [0] = {
 891                 .start  = AT91SAM9260_BASE_US4,
 892                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 893                 .flags  = IORESOURCE_MEM,
 894         },
 895         [1] = {
 896                 .start  = AT91SAM9260_ID_US4,
 897                 .end    = AT91SAM9260_ID_US4,
 898                 .flags  = IORESOURCE_IRQ,
 899         },
 900 };
 901
 902 static struct atmel_uart_data uart4_data = {
 903         .use_dma_tx     = 1,
 904         .use_dma_rx     = 1,
 905 };
 906
 907 static u64 uart4_dmamask = DMA_BIT_MASK(32);
 908
 909 static struct platform_device at91sam9260_uart4_device = {
 910         .name           = "atmel_usart",
 911         .id             = 5,
 912         .dev            = {
 913                                 .dma_mask               = &uart4_dmamask,
 914                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 915                                 .platform_data          = &uart4_data,
 916         },
 917         .resource       = uart4_resources,
 918         .num_resources  = ARRAY_SIZE(uart4_resources),
 919 };
 920
 921 static inline void configure_usart4_pins(void)
 922 {
 923         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 924         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 925 }
 926
 927 static struct resource uart5_resources[] = {
 928         [0] = {
 929                 .start  = AT91SAM9260_BASE_US5,
 930                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 931                 .flags  = IORESOURCE_MEM,
 932         },
 933         [1] = {
 934                 .start  = AT91SAM9260_ID_US5,
 935                 .end    = AT91SAM9260_ID_US5,
 936                 .flags  = IORESOURCE_IRQ,
 937         },
 938 };
 939
 940 static struct atmel_uart_data uart5_data = {
 941         .use_dma_tx     = 1,
 942         .use_dma_rx     = 1,
 943 };
 944
 945 static u64 uart5_dmamask = DMA_BIT_MASK(32);
 946
 947 static struct platform_device at91sam9260_uart5_device = {
 948         .name           = "atmel_usart",
 949         .id             = 6,
 950         .dev            = {
 951                                 .dma_mask               = &uart5_dmamask,
 952                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 953                                 .platform_data          = &uart5_data,
 954         },
 955         .resource       = uart5_resources,
 956         .num_resources  = ARRAY_SIZE(uart5_resources),
 957 };
 958
 959 static inline void configure_usart5_pins(void)
 960 {
 961         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 962         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 963 }
 964
 965 static struct platform_device *at91_uarts[ATMEL_MAX_UART];      /* the UARTs to use */
 966 struct platform_device *atmel_default_console_device;   /* the serial console device */
 967
 968 void __init __deprecated at91_init_serial(struct at91_uart_config *config)
 969 {
 970         int i;
 971
 972         /* Fill in list of supported UARTs */
 973         for (i = 0; i < config->nr_tty; i++) {
 974                 switch (config->tty_map[i]) {
 975                         case 0:
 976                                 configure_usart0_pins(ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DSR | ATMEL_UART_DTR | ATMEL_UART_DCD | ATMEL_UART_RI);
 977                                 at91_uarts[i] = &at91sam9260_uart0_device;
 978                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 979                                 break;
 980                         case 1:
 981                                 configure_usart1_pins(ATMEL_UART_CTS | ATMEL_UART_RTS);
 982                                 at91_uarts[i] = &at91sam9260_uart1_device;
 983                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 984                                 break;
 985                         case 2:
 986                                 configure_usart2_pins(0);
 987                                 at91_uarts[i] = &at91sam9260_uart2_device;
 988                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 989                                 break;
 990                         case 3:
 991                                 configure_usart3_pins(0);
 992                                 at91_uarts[i] = &at91sam9260_uart3_device;
 993                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 994                                 break;
 995                         case 4:
 996                                 configure_usart4_pins();
 997                                 at91_uarts[i] = &at91sam9260_uart4_device;
 998                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
 999                                 break;
1000                         case 5:
1001                                 configure_usart5_pins();
1002                                 at91_uarts[i] = &at91sam9260_uart5_device;
1003                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
1004                                 break;
1005                         case 6:
1006                                 configure_dbgu_pins();
1007                                 at91_uarts[i] = &at91sam9260_dbgu_device;
1008                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
1009                                 break;
1010                         default:
1011                                 continue;
1012                 }
1013                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
1014         }
1015
1016         /* Set serial console device */
1017         if (config->console_tty < ATMEL_MAX_UART)
1018                 atmel_default_console_device = at91_uarts[config->console_tty];
1019         if (!atmel_default_console_device)
1020                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1021 }
1022
1023 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1024 {
1025         struct platform_device *pdev;
1026
1027         switch (id) {
1028                 case 0:         /* DBGU */
1029                         pdev = &at91sam9260_dbgu_device;
1030                         configure_dbgu_pins();
1031                         at91_clock_associate("mck", &pdev->dev, "usart");
1032                         break;
1033                 case AT91SAM9260_ID_US0:
1034                         pdev = &at91sam9260_uart0_device;
1035                         configure_usart0_pins(pins);
1036                         at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1037                         break;
1038                 case AT91SAM9260_ID_US1:
1039                         pdev = &at91sam9260_uart1_device;
1040                         configure_usart1_pins(pins);
1041                         at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1042                         break;
1043                 case AT91SAM9260_ID_US2:
1044                         pdev = &at91sam9260_uart2_device;
1045                         configure_usart2_pins(pins);
1046                         at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1047                         break;
1048                 case AT91SAM9260_ID_US3:
1049                         pdev = &at91sam9260_uart3_device;
1050                         configure_usart3_pins(pins);
1051                         at91_clock_associate("usart3_clk", &pdev->dev, "usart");
1052                         break;
1053                 case AT91SAM9260_ID_US4:
1054                         pdev = &at91sam9260_uart4_device;
1055                         configure_usart4_pins();
1056                         at91_clock_associate("usart4_clk", &pdev->dev, "usart");
1057                         break;
1058                 case AT91SAM9260_ID_US5:
1059                         pdev = &at91sam9260_uart5_device;
1060                         configure_usart5_pins();
1061                         at91_clock_associate("usart5_clk", &pdev->dev, "usart");
1062                         break;
1063                 default:
1064                         return;
1065         }
1066         pdev->id = portnr;              /* update to mapped ID */
1067
1068         if (portnr < ATMEL_MAX_UART)
1069                 at91_uarts[portnr] = pdev;
1070 }
1071
1072 void __init at91_set_serial_console(unsigned portnr)
1073 {
1074         if (portnr < ATMEL_MAX_UART)
1075                 atmel_default_console_device = at91_uarts[portnr];
1076         if (!atmel_default_console_device)
1077                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1078 }
1079
1080 void __init at91_add_device_serial(void)
1081 {
1082         int i;
1083
1084         for (i = 0; i < ATMEL_MAX_UART; i++) {
1085                 if (at91_uarts[i])
1086                         platform_device_register(at91_uarts[i]);
1087         }
1088 }
1089 #else
1090 void __init __deprecated at91_init_serial(struct at91_uart_config *config) {}
1091 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1092 void __init at91_set_serial_console(unsigned portnr) {}
1093 void __init at91_add_device_serial(void) {}
1094 #endif
1095
1096
1097 /* -------------------------------------------------------------------- */
1098 /*
1099  * These devices are always present and don't need any board-specific
1100  * setup.
1101  */
1102 static int __init at91_add_standard_devices(void)
1103 {
1104         at91_add_device_rtt();
1105         at91_add_device_watchdog();
1106         return 0;
1107 }
1108
1109 arch_initcall(at91_add_standard_devices);