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   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 <mach/board.h>
  20 #include <mach/gpio.h>
  21 #include <mach/cpu.h>
  22 #include <mach/at91sam9260.h>
  23 #include <mach/at91sam9260_matrix.h>
  24 #include <mach/at91sam9_smc.h>
  25
  26 #include "generic.h"
  27
  28
  29 /* --------------------------------------------------------------------
  30  *  USB Host
  31  * -------------------------------------------------------------------- */
  32
  33 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  34 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  35 static struct at91_usbh_data usbh_data;
  36
  37 static struct resource usbh_resources[] = {
  38         [0] = {
  39                 .start  = AT91SAM9260_UHP_BASE,
  40                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
  41                 .flags  = IORESOURCE_MEM,
  42         },
  43         [1] = {
  44                 .start  = AT91SAM9260_ID_UHP,
  45                 .end    = AT91SAM9260_ID_UHP,
  46                 .flags  = IORESOURCE_IRQ,
  47         },
  48 };
  49
  50 static struct platform_device at91_usbh_device = {
  51         .name           = "at91_ohci",
  52         .id             = -1,
  53         .dev            = {
  54                                 .dma_mask               = &ohci_dmamask,
  55                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  56                                 .platform_data          = &usbh_data,
  57         },
  58         .resource       = usbh_resources,
  59         .num_resources  = ARRAY_SIZE(usbh_resources),
  60 };
  61
  62 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  63 {
  64         if (!data)
  65                 return;
  66
  67         usbh_data = *data;
  68         platform_device_register(&at91_usbh_device);
  69 }
  70 #else
  71 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  72 #endif
  73
  74
  75 /* --------------------------------------------------------------------
  76  *  USB Device (Gadget)
  77  * -------------------------------------------------------------------- */
  78
  79 #ifdef CONFIG_USB_GADGET_AT91
  80 static struct at91_udc_data udc_data;
  81
  82 static struct resource udc_resources[] = {
  83         [0] = {
  84                 .start  = AT91SAM9260_BASE_UDP,
  85                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
  86                 .flags  = IORESOURCE_MEM,
  87         },
  88         [1] = {
  89                 .start  = AT91SAM9260_ID_UDP,
  90                 .end    = AT91SAM9260_ID_UDP,
  91                 .flags  = IORESOURCE_IRQ,
  92         },
  93 };
  94
  95 static struct platform_device at91_udc_device = {
  96         .name           = "at91_udc",
  97         .id             = -1,
  98         .dev            = {
  99                                 .platform_data          = &udc_data,
 100         },
 101         .resource       = udc_resources,
 102         .num_resources  = ARRAY_SIZE(udc_resources),
 103 };
 104
 105 void __init at91_add_device_udc(struct at91_udc_data *data)
 106 {
 107         if (!data)
 108                 return;
 109
 110         if (data->vbus_pin) {
 111                 at91_set_gpio_input(data->vbus_pin, 0);
 112                 at91_set_deglitch(data->vbus_pin, 1);
 113         }
 114
 115         /* Pullup pin is handled internally by USB device peripheral */
 116
 117         udc_data = *data;
 118         platform_device_register(&at91_udc_device);
 119 }
 120 #else
 121 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 122 #endif
 123
 124
 125 /* --------------------------------------------------------------------
 126  *  Ethernet
 127  * -------------------------------------------------------------------- */
 128
 129 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 130 static u64 eth_dmamask = DMA_BIT_MASK(32);
 131 static struct at91_eth_data eth_data;
 132
 133 static struct resource eth_resources[] = {
 134         [0] = {
 135                 .start  = AT91SAM9260_BASE_EMAC,
 136                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
 137                 .flags  = IORESOURCE_MEM,
 138         },
 139         [1] = {
 140                 .start  = AT91SAM9260_ID_EMAC,
 141                 .end    = AT91SAM9260_ID_EMAC,
 142                 .flags  = IORESOURCE_IRQ,
 143         },
 144 };
 145
 146 static struct platform_device at91sam9260_eth_device = {
 147         .name           = "macb",
 148         .id             = -1,
 149         .dev            = {
 150                                 .dma_mask               = &eth_dmamask,
 151                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 152                                 .platform_data          = &eth_data,
 153         },
 154         .resource       = eth_resources,
 155         .num_resources  = ARRAY_SIZE(eth_resources),
 156 };
 157
 158 void __init at91_add_device_eth(struct at91_eth_data *data)
 159 {
 160         if (!data)
 161                 return;
 162
 163         if (data->phy_irq_pin) {
 164                 at91_set_gpio_input(data->phy_irq_pin, 0);
 165                 at91_set_deglitch(data->phy_irq_pin, 1);
 166         }
 167
 168         /* Pins used for MII and RMII */
 169         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
 170         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 171         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
 172         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
 173         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
 174         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
 175         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
 176         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
 177         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
 178         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
 179
 180         if (!data->is_rmii) {
 181                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
 182                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
 183                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
 184                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
 185                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
 186                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
 187                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
 188                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
 189         }
 190
 191         eth_data = *data;
 192         platform_device_register(&at91sam9260_eth_device);
 193 }
 194 #else
 195 void __init at91_add_device_eth(struct at91_eth_data *data) {}
 196 #endif
 197
 198
 199 /* --------------------------------------------------------------------
 200  *  MMC / SD
 201  * -------------------------------------------------------------------- */
 202
 203 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 204 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 205 static struct at91_mmc_data mmc_data;
 206
 207 static struct resource mmc_resources[] = {
 208         [0] = {
 209                 .start  = AT91SAM9260_BASE_MCI,
 210                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 211                 .flags  = IORESOURCE_MEM,
 212         },
 213         [1] = {
 214                 .start  = AT91SAM9260_ID_MCI,
 215                 .end    = AT91SAM9260_ID_MCI,
 216                 .flags  = IORESOURCE_IRQ,
 217         },
 218 };
 219
 220 static struct platform_device at91sam9260_mmc_device = {
 221         .name           = "at91_mci",
 222         .id             = -1,
 223         .dev            = {
 224                                 .dma_mask               = &mmc_dmamask,
 225                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 226                                 .platform_data          = &mmc_data,
 227         },
 228         .resource       = mmc_resources,
 229         .num_resources  = ARRAY_SIZE(mmc_resources),
 230 };
 231
 232 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 233 {
 234         if (!data)
 235                 return;
 236
 237         /* input/irq */
 238         if (data->det_pin) {
 239                 at91_set_gpio_input(data->det_pin, 1);
 240                 at91_set_deglitch(data->det_pin, 1);
 241         }
 242         if (data->wp_pin)
 243                 at91_set_gpio_input(data->wp_pin, 1);
 244         if (data->vcc_pin)
 245                 at91_set_gpio_output(data->vcc_pin, 0);
 246
 247         /* CLK */
 248         at91_set_A_periph(AT91_PIN_PA8, 0);
 249
 250         if (data->slot_b) {
 251                 /* CMD */
 252                 at91_set_B_periph(AT91_PIN_PA1, 1);
 253
 254                 /* DAT0, maybe DAT1..DAT3 */
 255                 at91_set_B_periph(AT91_PIN_PA0, 1);
 256                 if (data->wire4) {
 257                         at91_set_B_periph(AT91_PIN_PA5, 1);
 258                         at91_set_B_periph(AT91_PIN_PA4, 1);
 259                         at91_set_B_periph(AT91_PIN_PA3, 1);
 260                 }
 261         } else {
 262                 /* CMD */
 263                 at91_set_A_periph(AT91_PIN_PA7, 1);
 264
 265                 /* DAT0, maybe DAT1..DAT3 */
 266                 at91_set_A_periph(AT91_PIN_PA6, 1);
 267                 if (data->wire4) {
 268                         at91_set_A_periph(AT91_PIN_PA9, 1);
 269                         at91_set_A_periph(AT91_PIN_PA10, 1);
 270                         at91_set_A_periph(AT91_PIN_PA11, 1);
 271                 }
 272         }
 273
 274         mmc_data = *data;
 275         platform_device_register(&at91sam9260_mmc_device);
 276 }
 277 #else
 278 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 279 #endif
 280
 281
 282 /* --------------------------------------------------------------------
 283  *  NAND / SmartMedia
 284  * -------------------------------------------------------------------- */
 285
 286 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 287 static struct atmel_nand_data nand_data;
 288
 289 #define NAND_BASE       AT91_CHIPSELECT_3
 290
 291 static struct resource nand_resources[] = {
 292         [0] = {
 293                 .start  = NAND_BASE,
 294                 .end    = NAND_BASE + SZ_256M - 1,
 295                 .flags  = IORESOURCE_MEM,
 296         },
 297         [1] = {
 298                 .start  = AT91_BASE_SYS + AT91_ECC,
 299                 .end    = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
 300                 .flags  = IORESOURCE_MEM,
 301         }
 302 };
 303
 304 static struct platform_device at91sam9260_nand_device = {
 305         .name           = "atmel_nand",
 306         .id             = -1,
 307         .dev            = {
 308                                 .platform_data  = &nand_data,
 309         },
 310         .resource       = nand_resources,
 311         .num_resources  = ARRAY_SIZE(nand_resources),
 312 };
 313
 314 void __init at91_add_device_nand(struct atmel_nand_data *data)
 315 {
 316         unsigned long csa;
 317
 318         if (!data)
 319                 return;
 320
 321         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 322         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 323
 324         /* enable pin */
 325         if (data->enable_pin)
 326                 at91_set_gpio_output(data->enable_pin, 1);
 327
 328         /* ready/busy pin */
 329         if (data->rdy_pin)
 330                 at91_set_gpio_input(data->rdy_pin, 1);
 331
 332         /* card detect pin */
 333         if (data->det_pin)
 334                 at91_set_gpio_input(data->det_pin, 1);
 335
 336         nand_data = *data;
 337         platform_device_register(&at91sam9260_nand_device);
 338 }
 339 #else
 340 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 341 #endif
 342
 343
 344 /* --------------------------------------------------------------------
 345  *  TWI (i2c)
 346  * -------------------------------------------------------------------- */
 347
 348 /*
 349  * Prefer the GPIO code since the TWI controller isn't robust
 350  * (gets overruns and underruns under load) and can only issue
 351  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 352  */
 353
 354 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 355
 356 static struct i2c_gpio_platform_data pdata = {
 357         .sda_pin                = AT91_PIN_PA23,
 358         .sda_is_open_drain      = 1,
 359         .scl_pin                = AT91_PIN_PA24,
 360         .scl_is_open_drain      = 1,
 361         .udelay                 = 2,            /* ~100 kHz */
 362 };
 363
 364 static struct platform_device at91sam9260_twi_device = {
 365         .name                   = "i2c-gpio",
 366         .id                     = -1,
 367         .dev.platform_data      = &pdata,
 368 };
 369
 370 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 371 {
 372         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
 373         at91_set_multi_drive(AT91_PIN_PA23, 1);
 374
 375         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
 376         at91_set_multi_drive(AT91_PIN_PA24, 1);
 377
 378         i2c_register_board_info(0, devices, nr_devices);
 379         platform_device_register(&at91sam9260_twi_device);
 380 }
 381
 382 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 383
 384 static struct resource twi_resources[] = {
 385         [0] = {
 386                 .start  = AT91SAM9260_BASE_TWI,
 387                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 388                 .flags  = IORESOURCE_MEM,
 389         },
 390         [1] = {
 391                 .start  = AT91SAM9260_ID_TWI,
 392                 .end    = AT91SAM9260_ID_TWI,
 393                 .flags  = IORESOURCE_IRQ,
 394         },
 395 };
 396
 397 static struct platform_device at91sam9260_twi_device = {
 398         .name           = "at91_i2c",
 399         .id             = -1,
 400         .resource       = twi_resources,
 401         .num_resources  = ARRAY_SIZE(twi_resources),
 402 };
 403
 404 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 405 {
 406         /* pins used for TWI interface */
 407         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 408         at91_set_multi_drive(AT91_PIN_PA23, 1);
 409
 410         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 411         at91_set_multi_drive(AT91_PIN_PA24, 1);
 412
 413         i2c_register_board_info(0, devices, nr_devices);
 414         platform_device_register(&at91sam9260_twi_device);
 415 }
 416 #else
 417 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 418 #endif
 419
 420
 421 /* --------------------------------------------------------------------
 422  *  SPI
 423  * -------------------------------------------------------------------- */
 424
 425 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 426 static u64 spi_dmamask = DMA_BIT_MASK(32);
 427
 428 static struct resource spi0_resources[] = {
 429         [0] = {
 430                 .start  = AT91SAM9260_BASE_SPI0,
 431                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 432                 .flags  = IORESOURCE_MEM,
 433         },
 434         [1] = {
 435                 .start  = AT91SAM9260_ID_SPI0,
 436                 .end    = AT91SAM9260_ID_SPI0,
 437                 .flags  = IORESOURCE_IRQ,
 438         },
 439 };
 440
 441 static struct platform_device at91sam9260_spi0_device = {
 442         .name           = "atmel_spi",
 443         .id             = 0,
 444         .dev            = {
 445                                 .dma_mask               = &spi_dmamask,
 446                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 447         },
 448         .resource       = spi0_resources,
 449         .num_resources  = ARRAY_SIZE(spi0_resources),
 450 };
 451
 452 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 453
 454 static struct resource spi1_resources[] = {
 455         [0] = {
 456                 .start  = AT91SAM9260_BASE_SPI1,
 457                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 458                 .flags  = IORESOURCE_MEM,
 459         },
 460         [1] = {
 461                 .start  = AT91SAM9260_ID_SPI1,
 462                 .end    = AT91SAM9260_ID_SPI1,
 463                 .flags  = IORESOURCE_IRQ,
 464         },
 465 };
 466
 467 static struct platform_device at91sam9260_spi1_device = {
 468         .name           = "atmel_spi",
 469         .id             = 1,
 470         .dev            = {
 471                                 .dma_mask               = &spi_dmamask,
 472                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 473         },
 474         .resource       = spi1_resources,
 475         .num_resources  = ARRAY_SIZE(spi1_resources),
 476 };
 477
 478 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 479
 480 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 481 {
 482         int i;
 483         unsigned long cs_pin;
 484         short enable_spi0 = 0;
 485         short enable_spi1 = 0;
 486
 487         /* Choose SPI chip-selects */
 488         for (i = 0; i < nr_devices; i++) {
 489                 if (devices[i].controller_data)
 490                         cs_pin = (unsigned long) devices[i].controller_data;
 491                 else if (devices[i].bus_num == 0)
 492                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 493                 else
 494                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 495
 496                 if (devices[i].bus_num == 0)
 497                         enable_spi0 = 1;
 498                 else
 499                         enable_spi1 = 1;
 500
 501                 /* enable chip-select pin */
 502                 at91_set_gpio_output(cs_pin, 1);
 503
 504                 /* pass chip-select pin to driver */
 505                 devices[i].controller_data = (void *) cs_pin;
 506         }
 507
 508         spi_register_board_info(devices, nr_devices);
 509
 510         /* Configure SPI bus(es) */
 511         if (enable_spi0) {
 512                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 513                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 514                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 515
 516                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 517                 platform_device_register(&at91sam9260_spi0_device);
 518         }
 519         if (enable_spi1) {
 520                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 521                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 522                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 523
 524                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 525                 platform_device_register(&at91sam9260_spi1_device);
 526         }
 527 }
 528 #else
 529 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 530 #endif
 531
 532
 533 /* --------------------------------------------------------------------
 534  *  Timer/Counter blocks
 535  * -------------------------------------------------------------------- */
 536
 537 #ifdef CONFIG_ATMEL_TCLIB
 538
 539 static struct resource tcb0_resources[] = {
 540         [0] = {
 541                 .start  = AT91SAM9260_BASE_TCB0,
 542                 .end    = AT91SAM9260_BASE_TCB0 + SZ_16K - 1,
 543                 .flags  = IORESOURCE_MEM,
 544         },
 545         [1] = {
 546                 .start  = AT91SAM9260_ID_TC0,
 547                 .end    = AT91SAM9260_ID_TC0,
 548                 .flags  = IORESOURCE_IRQ,
 549         },
 550         [2] = {
 551                 .start  = AT91SAM9260_ID_TC1,
 552                 .end    = AT91SAM9260_ID_TC1,
 553                 .flags  = IORESOURCE_IRQ,
 554         },
 555         [3] = {
 556                 .start  = AT91SAM9260_ID_TC2,
 557                 .end    = AT91SAM9260_ID_TC2,
 558                 .flags  = IORESOURCE_IRQ,
 559         },
 560 };
 561
 562 static struct platform_device at91sam9260_tcb0_device = {
 563         .name           = "atmel_tcb",
 564         .id             = 0,
 565         .resource       = tcb0_resources,
 566         .num_resources  = ARRAY_SIZE(tcb0_resources),
 567 };
 568
 569 static struct resource tcb1_resources[] = {
 570         [0] = {
 571                 .start  = AT91SAM9260_BASE_TCB1,
 572                 .end    = AT91SAM9260_BASE_TCB1 + SZ_16K - 1,
 573                 .flags  = IORESOURCE_MEM,
 574         },
 575         [1] = {
 576                 .start  = AT91SAM9260_ID_TC3,
 577                 .end    = AT91SAM9260_ID_TC3,
 578                 .flags  = IORESOURCE_IRQ,
 579         },
 580         [2] = {
 581                 .start  = AT91SAM9260_ID_TC4,
 582                 .end    = AT91SAM9260_ID_TC4,
 583                 .flags  = IORESOURCE_IRQ,
 584         },
 585         [3] = {
 586                 .start  = AT91SAM9260_ID_TC5,
 587                 .end    = AT91SAM9260_ID_TC5,
 588                 .flags  = IORESOURCE_IRQ,
 589         },
 590 };
 591
 592 static struct platform_device at91sam9260_tcb1_device = {
 593         .name           = "atmel_tcb",
 594         .id             = 1,
 595         .resource       = tcb1_resources,
 596         .num_resources  = ARRAY_SIZE(tcb1_resources),
 597 };
 598
 599 static void __init at91_add_device_tc(void)
 600 {
 601         /* this chip has a separate clock and irq for each TC channel */
 602         at91_clock_associate("tc0_clk", &at91sam9260_tcb0_device.dev, "t0_clk");
 603         at91_clock_associate("tc1_clk", &at91sam9260_tcb0_device.dev, "t1_clk");
 604         at91_clock_associate("tc2_clk", &at91sam9260_tcb0_device.dev, "t2_clk");
 605         platform_device_register(&at91sam9260_tcb0_device);
 606
 607         at91_clock_associate("tc3_clk", &at91sam9260_tcb1_device.dev, "t0_clk");
 608         at91_clock_associate("tc4_clk", &at91sam9260_tcb1_device.dev, "t1_clk");
 609         at91_clock_associate("tc5_clk", &at91sam9260_tcb1_device.dev, "t2_clk");
 610         platform_device_register(&at91sam9260_tcb1_device);
 611 }
 612 #else
 613 static void __init at91_add_device_tc(void) { }
 614 #endif
 615
 616
 617 /* --------------------------------------------------------------------
 618  *  RTT
 619  * -------------------------------------------------------------------- */
 620
 621 static struct resource rtt_resources[] = {
 622         {
 623                 .start  = AT91_BASE_SYS + AT91_RTT,
 624                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
 625                 .flags  = IORESOURCE_MEM,
 626         }
 627 };
 628
 629 static struct platform_device at91sam9260_rtt_device = {
 630         .name           = "at91_rtt",
 631         .id             = 0,
 632         .resource       = rtt_resources,
 633         .num_resources  = ARRAY_SIZE(rtt_resources),
 634 };
 635
 636 static void __init at91_add_device_rtt(void)
 637 {
 638         platform_device_register(&at91sam9260_rtt_device);
 639 }
 640
 641
 642 /* --------------------------------------------------------------------
 643  *  Watchdog
 644  * -------------------------------------------------------------------- */
 645
 646 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 647 static struct platform_device at91sam9260_wdt_device = {
 648         .name           = "at91_wdt",
 649         .id             = -1,
 650         .num_resources  = 0,
 651 };
 652
 653 static void __init at91_add_device_watchdog(void)
 654 {
 655         platform_device_register(&at91sam9260_wdt_device);
 656 }
 657 #else
 658 static void __init at91_add_device_watchdog(void) {}
 659 #endif
 660
 661
 662 /* --------------------------------------------------------------------
 663  *  SSC -- Synchronous Serial Controller
 664  * -------------------------------------------------------------------- */
 665
 666 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 667 static u64 ssc_dmamask = DMA_BIT_MASK(32);
 668
 669 static struct resource ssc_resources[] = {
 670         [0] = {
 671                 .start  = AT91SAM9260_BASE_SSC,
 672                 .end    = AT91SAM9260_BASE_SSC + SZ_16K - 1,
 673                 .flags  = IORESOURCE_MEM,
 674         },
 675         [1] = {
 676                 .start  = AT91SAM9260_ID_SSC,
 677                 .end    = AT91SAM9260_ID_SSC,
 678                 .flags  = IORESOURCE_IRQ,
 679         },
 680 };
 681
 682 static struct platform_device at91sam9260_ssc_device = {
 683         .name   = "ssc",
 684         .id     = 0,
 685         .dev    = {
 686                 .dma_mask               = &ssc_dmamask,
 687                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 688         },
 689         .resource       = ssc_resources,
 690         .num_resources  = ARRAY_SIZE(ssc_resources),
 691 };
 692
 693 static inline void configure_ssc_pins(unsigned pins)
 694 {
 695         if (pins & ATMEL_SSC_TF)
 696                 at91_set_A_periph(AT91_PIN_PB17, 1);
 697         if (pins & ATMEL_SSC_TK)
 698                 at91_set_A_periph(AT91_PIN_PB16, 1);
 699         if (pins & ATMEL_SSC_TD)
 700                 at91_set_A_periph(AT91_PIN_PB18, 1);
 701         if (pins & ATMEL_SSC_RD)
 702                 at91_set_A_periph(AT91_PIN_PB19, 1);
 703         if (pins & ATMEL_SSC_RK)
 704                 at91_set_A_periph(AT91_PIN_PB20, 1);
 705         if (pins & ATMEL_SSC_RF)
 706                 at91_set_A_periph(AT91_PIN_PB21, 1);
 707 }
 708
 709 /*
 710  * SSC controllers are accessed through library code, instead of any
 711  * kind of all-singing/all-dancing driver.  For example one could be
 712  * used by a particular I2S audio codec's driver, while another one
 713  * on the same system might be used by a custom data capture driver.
 714  */
 715 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 716 {
 717         struct platform_device *pdev;
 718
 719         /*
 720          * NOTE: caller is responsible for passing information matching
 721          * "pins" to whatever will be using each particular controller.
 722          */
 723         switch (id) {
 724         case AT91SAM9260_ID_SSC:
 725                 pdev = &at91sam9260_ssc_device;
 726                 configure_ssc_pins(pins);
 727                 at91_clock_associate("ssc_clk", &pdev->dev, "pclk");
 728                 break;
 729         default:
 730                 return;
 731         }
 732
 733         platform_device_register(pdev);
 734 }
 735
 736 #else
 737 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 738 #endif
 739
 740
 741 /* --------------------------------------------------------------------
 742  *  UART
 743  * -------------------------------------------------------------------- */
 744 #if defined(CONFIG_SERIAL_ATMEL)
 745 static struct resource dbgu_resources[] = {
 746         [0] = {
 747                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 748                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 749                 .flags  = IORESOURCE_MEM,
 750         },
 751         [1] = {
 752                 .start  = AT91_ID_SYS,
 753                 .end    = AT91_ID_SYS,
 754                 .flags  = IORESOURCE_IRQ,
 755         },
 756 };
 757
 758 static struct atmel_uart_data dbgu_data = {
 759         .use_dma_tx     = 0,
 760         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 761         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 762 };
 763
 764 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 765
 766 static struct platform_device at91sam9260_dbgu_device = {
 767         .name           = "atmel_usart",
 768         .id             = 0,
 769         .dev            = {
 770                                 .dma_mask               = &dbgu_dmamask,
 771                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 772                                 .platform_data          = &dbgu_data,
 773         },
 774         .resource       = dbgu_resources,
 775         .num_resources  = ARRAY_SIZE(dbgu_resources),
 776 };
 777
 778 static inline void configure_dbgu_pins(void)
 779 {
 780         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 781         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 782 }
 783
 784 static struct resource uart0_resources[] = {
 785         [0] = {
 786                 .start  = AT91SAM9260_BASE_US0,
 787                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 788                 .flags  = IORESOURCE_MEM,
 789         },
 790         [1] = {
 791                 .start  = AT91SAM9260_ID_US0,
 792                 .end    = AT91SAM9260_ID_US0,
 793                 .flags  = IORESOURCE_IRQ,
 794         },
 795 };
 796
 797 static struct atmel_uart_data uart0_data = {
 798         .use_dma_tx     = 1,
 799         .use_dma_rx     = 1,
 800 };
 801
 802 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 803
 804 static struct platform_device at91sam9260_uart0_device = {
 805         .name           = "atmel_usart",
 806         .id             = 1,
 807         .dev            = {
 808                                 .dma_mask               = &uart0_dmamask,
 809                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 810                                 .platform_data          = &uart0_data,
 811         },
 812         .resource       = uart0_resources,
 813         .num_resources  = ARRAY_SIZE(uart0_resources),
 814 };
 815
 816 static inline void configure_usart0_pins(unsigned pins)
 817 {
 818         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 819         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 820
 821         if (pins & ATMEL_UART_RTS)
 822                 at91_set_A_periph(AT91_PIN_PB26, 0);    /* RTS0 */
 823         if (pins & ATMEL_UART_CTS)
 824                 at91_set_A_periph(AT91_PIN_PB27, 0);    /* CTS0 */
 825         if (pins & ATMEL_UART_DTR)
 826                 at91_set_A_periph(AT91_PIN_PB24, 0);    /* DTR0 */
 827         if (pins & ATMEL_UART_DSR)
 828                 at91_set_A_periph(AT91_PIN_PB22, 0);    /* DSR0 */
 829         if (pins & ATMEL_UART_DCD)
 830                 at91_set_A_periph(AT91_PIN_PB23, 0);    /* DCD0 */
 831         if (pins & ATMEL_UART_RI)
 832                 at91_set_A_periph(AT91_PIN_PB25, 0);    /* RI0 */
 833 }
 834
 835 static struct resource uart1_resources[] = {
 836         [0] = {
 837                 .start  = AT91SAM9260_BASE_US1,
 838                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 839                 .flags  = IORESOURCE_MEM,
 840         },
 841         [1] = {
 842                 .start  = AT91SAM9260_ID_US1,
 843                 .end    = AT91SAM9260_ID_US1,
 844                 .flags  = IORESOURCE_IRQ,
 845         },
 846 };
 847
 848 static struct atmel_uart_data uart1_data = {
 849         .use_dma_tx     = 1,
 850         .use_dma_rx     = 1,
 851 };
 852
 853 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 854
 855 static struct platform_device at91sam9260_uart1_device = {
 856         .name           = "atmel_usart",
 857         .id             = 2,
 858         .dev            = {
 859                                 .dma_mask               = &uart1_dmamask,
 860                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 861                                 .platform_data          = &uart1_data,
 862         },
 863         .resource       = uart1_resources,
 864         .num_resources  = ARRAY_SIZE(uart1_resources),
 865 };
 866
 867 static inline void configure_usart1_pins(unsigned pins)
 868 {
 869         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 870         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 871
 872         if (pins & ATMEL_UART_RTS)
 873                 at91_set_A_periph(AT91_PIN_PB28, 0);    /* RTS1 */
 874         if (pins & ATMEL_UART_CTS)
 875                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* CTS1 */
 876 }
 877
 878 static struct resource uart2_resources[] = {
 879         [0] = {
 880                 .start  = AT91SAM9260_BASE_US2,
 881                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 882                 .flags  = IORESOURCE_MEM,
 883         },
 884         [1] = {
 885                 .start  = AT91SAM9260_ID_US2,
 886                 .end    = AT91SAM9260_ID_US2,
 887                 .flags  = IORESOURCE_IRQ,
 888         },
 889 };
 890
 891 static struct atmel_uart_data uart2_data = {
 892         .use_dma_tx     = 1,
 893         .use_dma_rx     = 1,
 894 };
 895
 896 static u64 uart2_dmamask = DMA_BIT_MASK(32);
 897
 898 static struct platform_device at91sam9260_uart2_device = {
 899         .name           = "atmel_usart",
 900         .id             = 3,
 901         .dev            = {
 902                                 .dma_mask               = &uart2_dmamask,
 903                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 904                                 .platform_data          = &uart2_data,
 905         },
 906         .resource       = uart2_resources,
 907         .num_resources  = ARRAY_SIZE(uart2_resources),
 908 };
 909
 910 static inline void configure_usart2_pins(unsigned pins)
 911 {
 912         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 913         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 914
 915         if (pins & ATMEL_UART_RTS)
 916                 at91_set_A_periph(AT91_PIN_PA4, 0);     /* RTS2 */
 917         if (pins & ATMEL_UART_CTS)
 918                 at91_set_A_periph(AT91_PIN_PA5, 0);     /* CTS2 */
 919 }
 920
 921 static struct resource uart3_resources[] = {
 922         [0] = {
 923                 .start  = AT91SAM9260_BASE_US3,
 924                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 925                 .flags  = IORESOURCE_MEM,
 926         },
 927         [1] = {
 928                 .start  = AT91SAM9260_ID_US3,
 929                 .end    = AT91SAM9260_ID_US3,
 930                 .flags  = IORESOURCE_IRQ,
 931         },
 932 };
 933
 934 static struct atmel_uart_data uart3_data = {
 935         .use_dma_tx     = 1,
 936         .use_dma_rx     = 1,
 937 };
 938
 939 static u64 uart3_dmamask = DMA_BIT_MASK(32);
 940
 941 static struct platform_device at91sam9260_uart3_device = {
 942         .name           = "atmel_usart",
 943         .id             = 4,
 944         .dev            = {
 945                                 .dma_mask               = &uart3_dmamask,
 946                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 947                                 .platform_data          = &uart3_data,
 948         },
 949         .resource       = uart3_resources,
 950         .num_resources  = ARRAY_SIZE(uart3_resources),
 951 };
 952
 953 static inline void configure_usart3_pins(unsigned pins)
 954 {
 955         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 956         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 957
 958         if (pins & ATMEL_UART_RTS)
 959                 at91_set_B_periph(AT91_PIN_PC8, 0);     /* RTS3 */
 960         if (pins & ATMEL_UART_CTS)
 961                 at91_set_B_periph(AT91_PIN_PC10, 0);    /* CTS3 */
 962 }
 963
 964 static struct resource uart4_resources[] = {
 965         [0] = {
 966                 .start  = AT91SAM9260_BASE_US4,
 967                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 968                 .flags  = IORESOURCE_MEM,
 969         },
 970         [1] = {
 971                 .start  = AT91SAM9260_ID_US4,
 972                 .end    = AT91SAM9260_ID_US4,
 973                 .flags  = IORESOURCE_IRQ,
 974         },
 975 };
 976
 977 static struct atmel_uart_data uart4_data = {
 978         .use_dma_tx     = 1,
 979         .use_dma_rx     = 1,
 980 };
 981
 982 static u64 uart4_dmamask = DMA_BIT_MASK(32);
 983
 984 static struct platform_device at91sam9260_uart4_device = {
 985         .name           = "atmel_usart",
 986         .id             = 5,
 987         .dev            = {
 988                                 .dma_mask               = &uart4_dmamask,
 989                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 990                                 .platform_data          = &uart4_data,
 991         },
 992         .resource       = uart4_resources,
 993         .num_resources  = ARRAY_SIZE(uart4_resources),
 994 };
 995
 996 static inline void configure_usart4_pins(void)
 997 {
 998         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 999         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
1000 }
1001
1002 static struct resource uart5_resources[] = {
1003         [0] = {
1004                 .start  = AT91SAM9260_BASE_US5,
1005                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
1006                 .flags  = IORESOURCE_MEM,
1007         },
1008         [1] = {
1009                 .start  = AT91SAM9260_ID_US5,
1010                 .end    = AT91SAM9260_ID_US5,
1011                 .flags  = IORESOURCE_IRQ,
1012         },
1013 };
1014
1015 static struct atmel_uart_data uart5_data = {
1016         .use_dma_tx     = 1,
1017         .use_dma_rx     = 1,
1018 };
1019
1020 static u64 uart5_dmamask = DMA_BIT_MASK(32);
1021
1022 static struct platform_device at91sam9260_uart5_device = {
1023         .name           = "atmel_usart",
1024         .id             = 6,
1025         .dev            = {
1026                                 .dma_mask               = &uart5_dmamask,
1027                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1028                                 .platform_data          = &uart5_data,
1029         },
1030         .resource       = uart5_resources,
1031         .num_resources  = ARRAY_SIZE(uart5_resources),
1032 };
1033
1034 static inline void configure_usart5_pins(void)
1035 {
1036         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
1037         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
1038 }
1039
1040 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
1041 struct platform_device *atmel_default_console_device;   /* the serial console device */
1042
1043 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1044 {
1045         struct platform_device *pdev;
1046
1047         switch (id) {
1048                 case 0:         /* DBGU */
1049                         pdev = &at91sam9260_dbgu_device;
1050                         configure_dbgu_pins();
1051                         at91_clock_associate("mck", &pdev->dev, "usart");
1052                         break;
1053                 case AT91SAM9260_ID_US0:
1054                         pdev = &at91sam9260_uart0_device;
1055                         configure_usart0_pins(pins);
1056                         at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1057                         break;
1058                 case AT91SAM9260_ID_US1:
1059                         pdev = &at91sam9260_uart1_device;
1060                         configure_usart1_pins(pins);
1061                         at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1062                         break;
1063                 case AT91SAM9260_ID_US2:
1064                         pdev = &at91sam9260_uart2_device;
1065                         configure_usart2_pins(pins);
1066                         at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1067                         break;
1068                 case AT91SAM9260_ID_US3:
1069                         pdev = &at91sam9260_uart3_device;
1070                         configure_usart3_pins(pins);
1071                         at91_clock_associate("usart3_clk", &pdev->dev, "usart");
1072                         break;
1073                 case AT91SAM9260_ID_US4:
1074                         pdev = &at91sam9260_uart4_device;
1075                         configure_usart4_pins();
1076                         at91_clock_associate("usart4_clk", &pdev->dev, "usart");
1077                         break;
1078                 case AT91SAM9260_ID_US5:
1079                         pdev = &at91sam9260_uart5_device;
1080                         configure_usart5_pins();
1081                         at91_clock_associate("usart5_clk", &pdev->dev, "usart");
1082                         break;
1083                 default:
1084                         return;
1085         }
1086         pdev->id = portnr;              /* update to mapped ID */
1087
1088         if (portnr < ATMEL_MAX_UART)
1089                 at91_uarts[portnr] = pdev;
1090 }
1091
1092 void __init at91_set_serial_console(unsigned portnr)
1093 {
1094         if (portnr < ATMEL_MAX_UART)
1095                 atmel_default_console_device = at91_uarts[portnr];
1096 }
1097
1098 void __init at91_add_device_serial(void)
1099 {
1100         int i;
1101
1102         for (i = 0; i < ATMEL_MAX_UART; i++) {
1103                 if (at91_uarts[i])
1104                         platform_device_register(at91_uarts[i]);
1105         }
1106
1107         if (!atmel_default_console_device)
1108                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1109 }
1110 #else
1111 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1112 void __init at91_set_serial_console(unsigned portnr) {}
1113 void __init at91_add_device_serial(void) {}
1114 #endif
1115
1116
1117 /* -------------------------------------------------------------------- */
1118 /*
1119  * These devices are always present and don't need any board-specific
1120  * setup.
1121  */
1122 static int __init at91_add_standard_devices(void)
1123 {
1124         at91_add_device_rtt();
1125         at91_add_device_watchdog();
1126         at91_add_device_tc();
1127         return 0;
1128 }
1129
1130 arch_initcall(at91_add_standard_devices);