arch/arm/mach-at91/at572d940hf_devices.c

   1 /*
   2  * arch/arm/mach-at91/at572d940hf_devices.c
   3  *
   4  * Copyright (C) 2008 Atmel Antonio R. Costa <costa.antonior@gmail.com>
   5  * Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
   6  * Copyright (C) 2005 David Brownell
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/map.h>
  26
  27 #include <linux/dma-mapping.h>
  28 #include <linux/platform_device.h>
  29
  30 #include <mach/board.h>
  31 #include <mach/gpio.h>
  32 #include <mach/at572d940hf.h>
  33 #include <mach/at572d940hf_matrix.h>
  34 #include <mach/at91sam9_smc.h>
  35
  36 #include "generic.h"
  37 #include "sam9_smc.h"
  38
  39
  40 /* --------------------------------------------------------------------
  41  *  USB Host
  42  * -------------------------------------------------------------------- */
  43
  44 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  45 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  46 static struct at91_usbh_data usbh_data;
  47
  48 static struct resource usbh_resources[] = {
  49         [0] = {
  50                 .start  = AT572D940HF_UHP_BASE,
  51                 .end    = AT572D940HF_UHP_BASE + SZ_1M - 1,
  52                 .flags  = IORESOURCE_MEM,
  53         },
  54         [1] = {
  55                 .start  = AT572D940HF_ID_UHP,
  56                 .end    = AT572D940HF_ID_UHP,
  57                 .flags  = IORESOURCE_IRQ,
  58         },
  59 };
  60
  61 static struct platform_device at572d940hf_usbh_device = {
  62         .name           = "at91_ohci",
  63         .id             = -1,
  64         .dev            = {
  65                                 .dma_mask               = &ohci_dmamask,
  66                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  67                                 .platform_data          = &usbh_data,
  68         },
  69         .resource       = usbh_resources,
  70         .num_resources  = ARRAY_SIZE(usbh_resources),
  71 };
  72
  73 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  74 {
  75         if (!data)
  76                 return;
  77
  78         usbh_data = *data;
  79         platform_device_register(&at572d940hf_usbh_device);
  80
  81 }
  82 #else
  83 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  84 #endif
  85
  86
  87 /* --------------------------------------------------------------------
  88  *  USB Device (Gadget)
  89  * -------------------------------------------------------------------- */
  90
  91 #ifdef CONFIG_USB_GADGET_AT91
  92 static struct at91_udc_data udc_data;
  93
  94 static struct resource udc_resources[] = {
  95         [0] = {
  96                 .start  = AT572D940HF_BASE_UDP,
  97                 .end    = AT572D940HF_BASE_UDP + SZ_16K - 1,
  98                 .flags  = IORESOURCE_MEM,
  99         },
 100         [1] = {
 101                 .start  = AT572D940HF_ID_UDP,
 102                 .end    = AT572D940HF_ID_UDP,
 103                 .flags  = IORESOURCE_IRQ,
 104         },
 105 };
 106
 107 static struct platform_device at572d940hf_udc_device = {
 108         .name           = "at91_udc",
 109         .id             = -1,
 110         .dev            = {
 111                                 .platform_data          = &udc_data,
 112         },
 113         .resource       = udc_resources,
 114         .num_resources  = ARRAY_SIZE(udc_resources),
 115 };
 116
 117 void __init at91_add_device_udc(struct at91_udc_data *data)
 118 {
 119         if (!data)
 120                 return;
 121
 122         if (data->vbus_pin) {
 123                 at91_set_gpio_input(data->vbus_pin, 0);
 124                 at91_set_deglitch(data->vbus_pin, 1);
 125         }
 126
 127         /* Pullup pin is handled internally */
 128
 129         udc_data = *data;
 130         platform_device_register(&at572d940hf_udc_device);
 131 }
 132 #else
 133 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 134 #endif
 135
 136
 137 /* --------------------------------------------------------------------
 138  *  Ethernet
 139  * -------------------------------------------------------------------- */
 140
 141 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 142 static u64 eth_dmamask = DMA_BIT_MASK(32);
 143 static struct at91_eth_data eth_data;
 144
 145 static struct resource eth_resources[] = {
 146         [0] = {
 147                 .start  = AT572D940HF_BASE_EMAC,
 148                 .end    = AT572D940HF_BASE_EMAC + SZ_16K - 1,
 149                 .flags  = IORESOURCE_MEM,
 150         },
 151         [1] = {
 152                 .start  = AT572D940HF_ID_EMAC,
 153                 .end    = AT572D940HF_ID_EMAC,
 154                 .flags  = IORESOURCE_IRQ,
 155         },
 156 };
 157
 158 static struct platform_device at572d940hf_eth_device = {
 159         .name           = "macb",
 160         .id             = -1,
 161         .dev            = {
 162                         .dma_mask               = &eth_dmamask,
 163                         .coherent_dma_mask      = DMA_BIT_MASK(32),
 164                         .platform_data          = &eth_data,
 165         },
 166         .resource       = eth_resources,
 167         .num_resources  = ARRAY_SIZE(eth_resources),
 168 };
 169
 170 void __init at91_add_device_eth(struct at91_eth_data *data)
 171 {
 172         if (!data)
 173                 return;
 174
 175         if (data->phy_irq_pin) {
 176                 at91_set_gpio_input(data->phy_irq_pin, 0);
 177                 at91_set_deglitch(data->phy_irq_pin, 1);
 178         }
 179
 180         /* Only RMII is supported */
 181         data->is_rmii = 1;
 182
 183         /* Pins used for RMII */
 184         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXCK_EREFCK */
 185         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 186         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERX0 */
 187         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ERX1 */
 188         at91_set_A_periph(AT91_PIN_PA20, 0);    /* ERXER */
 189         at91_set_A_periph(AT91_PIN_PA23, 0);    /* ETXEN */
 190         at91_set_A_periph(AT91_PIN_PA21, 0);    /* ETX0 */
 191         at91_set_A_periph(AT91_PIN_PA22, 0);    /* ETX1 */
 192         at91_set_A_periph(AT91_PIN_PA13, 0);    /* EMDIO */
 193         at91_set_A_periph(AT91_PIN_PA14, 0);    /* EMDC */
 194
 195         eth_data = *data;
 196         platform_device_register(&at572d940hf_eth_device);
 197 }
 198 #else
 199 void __init at91_add_device_eth(struct at91_eth_data *data) {}
 200 #endif
 201
 202
 203 /* --------------------------------------------------------------------
 204  *  MMC / SD
 205  * -------------------------------------------------------------------- */
 206
 207 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 208 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 209 static struct at91_mmc_data mmc_data;
 210
 211 static struct resource mmc_resources[] = {
 212         [0] = {
 213                 .start  = AT572D940HF_BASE_MCI,
 214                 .end    = AT572D940HF_BASE_MCI + SZ_16K - 1,
 215                 .flags  = IORESOURCE_MEM,
 216         },
 217         [1] = {
 218                 .start  = AT572D940HF_ID_MCI,
 219                 .end    = AT572D940HF_ID_MCI,
 220                 .flags  = IORESOURCE_IRQ,
 221         },
 222 };
 223
 224 static struct platform_device at572d940hf_mmc_device = {
 225         .name           = "at91_mci",
 226         .id             = -1,
 227         .dev            = {
 228                                 .dma_mask               = &mmc_dmamask,
 229                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 230                                 .platform_data          = &mmc_data,
 231         },
 232         .resource       = mmc_resources,
 233         .num_resources  = ARRAY_SIZE(mmc_resources),
 234 };
 235
 236 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 237 {
 238         if (!data)
 239                 return;
 240
 241         /* input/irq */
 242         if (data->det_pin) {
 243                 at91_set_gpio_input(data->det_pin, 1);
 244                 at91_set_deglitch(data->det_pin, 1);
 245         }
 246         if (data->wp_pin)
 247                 at91_set_gpio_input(data->wp_pin, 1);
 248         if (data->vcc_pin)
 249                 at91_set_gpio_output(data->vcc_pin, 0);
 250
 251         /* CLK */
 252         at91_set_A_periph(AT91_PIN_PC22, 0);
 253
 254         /* CMD */
 255         at91_set_A_periph(AT91_PIN_PC23, 1);
 256
 257         /* DAT0, maybe DAT1..DAT3 */
 258         at91_set_A_periph(AT91_PIN_PC24, 1);
 259         if (data->wire4) {
 260                 at91_set_A_periph(AT91_PIN_PC25, 1);
 261                 at91_set_A_periph(AT91_PIN_PC26, 1);
 262                 at91_set_A_periph(AT91_PIN_PC27, 1);
 263         }
 264
 265         mmc_data = *data;
 266         platform_device_register(&at572d940hf_mmc_device);
 267 }
 268 #else
 269 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 270 #endif
 271
 272
 273 /* --------------------------------------------------------------------
 274  *  NAND / SmartMedia
 275  * -------------------------------------------------------------------- */
 276
 277 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 278 static struct atmel_nand_data nand_data;
 279
 280 #define NAND_BASE       AT91_CHIPSELECT_3
 281
 282 static struct resource nand_resources[] = {
 283         {
 284                 .start  = NAND_BASE,
 285                 .end    = NAND_BASE + SZ_256M - 1,
 286                 .flags  = IORESOURCE_MEM,
 287         }
 288 };
 289
 290 static struct platform_device at572d940hf_nand_device = {
 291         .name           = "atmel_nand",
 292         .id             = -1,
 293         .dev            = {
 294                                 .platform_data  = &nand_data,
 295         },
 296         .resource       = nand_resources,
 297         .num_resources  = ARRAY_SIZE(nand_resources),
 298 };
 299
 300 void __init at91_add_device_nand(struct atmel_nand_data *data)
 301 {
 302         unsigned long csa;
 303
 304         if (!data)
 305                 return;
 306
 307         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 308         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 309
 310         /* enable pin */
 311         if (data->enable_pin)
 312                 at91_set_gpio_output(data->enable_pin, 1);
 313
 314         /* ready/busy pin */
 315         if (data->rdy_pin)
 316                 at91_set_gpio_input(data->rdy_pin, 1);
 317
 318         /* card detect pin */
 319         if (data->det_pin)
 320                 at91_set_gpio_input(data->det_pin, 1);
 321
 322         at91_set_A_periph(AT91_PIN_PB28, 0);            /* A[22] */
 323         at91_set_B_periph(AT91_PIN_PA28, 0);            /* NANDOE */
 324         at91_set_B_periph(AT91_PIN_PA29, 0);            /* NANDWE */
 325
 326         nand_data = *data;
 327         platform_device_register(&at572d940hf_nand_device);
 328 }
 329
 330 #else
 331 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 332 #endif
 333
 334
 335 /* --------------------------------------------------------------------
 336  *  TWI (i2c)
 337  * -------------------------------------------------------------------- */
 338
 339 /*
 340  * Prefer the GPIO code since the TWI controller isn't robust
 341  * (gets overruns and underruns under load) and can only issue
 342  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 343  */
 344
 345 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 346
 347 static struct i2c_gpio_platform_data pdata = {
 348         .sda_pin                = AT91_PIN_PC7,
 349         .sda_is_open_drain      = 1,
 350         .scl_pin                = AT91_PIN_PC8,
 351         .scl_is_open_drain      = 1,
 352         .udelay                 = 2,            /* ~100 kHz */
 353 };
 354
 355 static struct platform_device at572d940hf_twi_device {
 356         .name                   = "i2c-gpio",
 357         .id                     = -1,
 358         .dev.platform_data      = &pdata,
 359 };
 360
 361 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 362 {
 363         at91_set_GPIO_periph(AT91_PIN_PC7, 1);          /* TWD (SDA) */
 364         at91_set_multi_drive(AT91_PIN_PC7, 1);
 365
 366         at91_set_GPIO_periph(AT91_PIN_PA8, 1);          /* TWCK (SCL) */
 367         at91_set_multi_drive(AT91_PIN_PC8, 1);
 368
 369         i2c_register_board_info(0, devices, nr_devices);
 370         platform_device_register(&at572d940hf_twi_device);
 371 }
 372
 373 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 374
 375 static struct resource twi0_resources[] = {
 376         [0] = {
 377                 .start  = AT572D940HF_BASE_TWI0,
 378                 .end    = AT572D940HF_BASE_TWI0 + SZ_16K - 1,
 379                 .flags  = IORESOURCE_MEM,
 380         },
 381         [1] = {
 382                 .start  = AT572D940HF_ID_TWI0,
 383                 .end    = AT572D940HF_ID_TWI0,
 384                 .flags  = IORESOURCE_IRQ,
 385         },
 386 };
 387
 388 static struct platform_device at572d940hf_twi0_device = {
 389         .name           = "at91_i2c",
 390         .id             = 0,
 391         .resource       = twi0_resources,
 392         .num_resources  = ARRAY_SIZE(twi0_resources),
 393 };
 394
 395 static struct resource twi1_resources[] = {
 396         [0] = {
 397                 .start  = AT572D940HF_BASE_TWI1,
 398                 .end    = AT572D940HF_BASE_TWI1 + SZ_16K - 1,
 399                 .flags  = IORESOURCE_MEM,
 400         },
 401         [1] = {
 402                 .start  = AT572D940HF_ID_TWI1,
 403                 .end    = AT572D940HF_ID_TWI1,
 404                 .flags  = IORESOURCE_IRQ,
 405         },
 406 };
 407
 408 static struct platform_device at572d940hf_twi1_device = {
 409         .name           = "at91_i2c",
 410         .id             = 1,
 411         .resource       = twi1_resources,
 412         .num_resources  = ARRAY_SIZE(twi1_resources),
 413 };
 414
 415 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 416 {
 417         /* pins used for TWI0 interface */
 418         at91_set_A_periph(AT91_PIN_PC7, 0);             /* TWD */
 419         at91_set_multi_drive(AT91_PIN_PC7, 1);
 420
 421         at91_set_A_periph(AT91_PIN_PC8, 0);             /* TWCK */
 422         at91_set_multi_drive(AT91_PIN_PC8, 1);
 423
 424         /* pins used for TWI1 interface */
 425         at91_set_A_periph(AT91_PIN_PC20, 0);            /* TWD */
 426         at91_set_multi_drive(AT91_PIN_PC20, 1);
 427
 428         at91_set_A_periph(AT91_PIN_PC21, 0);            /* TWCK */
 429         at91_set_multi_drive(AT91_PIN_PC21, 1);
 430
 431         i2c_register_board_info(0, devices, nr_devices);
 432         platform_device_register(&at572d940hf_twi0_device);
 433         platform_device_register(&at572d940hf_twi1_device);
 434 }
 435 #else
 436 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 437 #endif
 438
 439
 440 /* --------------------------------------------------------------------
 441  *  SPI
 442  * -------------------------------------------------------------------- */
 443
 444 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 445 static u64 spi_dmamask = DMA_BIT_MASK(32);
 446
 447 static struct resource spi0_resources[] = {
 448         [0] = {
 449                 .start  = AT572D940HF_BASE_SPI0,
 450                 .end    = AT572D940HF_BASE_SPI0 + SZ_16K - 1,
 451                 .flags  = IORESOURCE_MEM,
 452         },
 453         [1] = {
 454                 .start  = AT572D940HF_ID_SPI0,
 455                 .end    = AT572D940HF_ID_SPI0,
 456                 .flags  = IORESOURCE_IRQ,
 457         },
 458 };
 459
 460 static struct platform_device at572d940hf_spi0_device = {
 461         .name           = "atmel_spi",
 462         .id             = 0,
 463         .dev            = {
 464                                 .dma_mask               = &spi_dmamask,
 465                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 466         },
 467         .resource       = spi0_resources,
 468         .num_resources  = ARRAY_SIZE(spi0_resources),
 469 };
 470
 471 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 };
 472
 473 static struct resource spi1_resources[] = {
 474         [0] = {
 475                 .start  = AT572D940HF_BASE_SPI1,
 476                 .end    = AT572D940HF_BASE_SPI1 + SZ_16K - 1,
 477                 .flags  = IORESOURCE_MEM,
 478         },
 479         [1] = {
 480                 .start  = AT572D940HF_ID_SPI1,
 481                 .end    = AT572D940HF_ID_SPI1,
 482                 .flags  = IORESOURCE_IRQ,
 483         },
 484 };
 485
 486 static struct platform_device at572d940hf_spi1_device = {
 487         .name           = "atmel_spi",
 488         .id             = 1,
 489         .dev            = {
 490                                 .dma_mask               = &spi_dmamask,
 491                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 492         },
 493         .resource       = spi1_resources,
 494         .num_resources  = ARRAY_SIZE(spi1_resources),
 495 };
 496
 497 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PC3, AT91_PIN_PC4, AT91_PIN_PC5, AT91_PIN_PC6 };
 498
 499 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 500 {
 501         int i;
 502         unsigned long cs_pin;
 503         short enable_spi0 = 0;
 504         short enable_spi1 = 0;
 505
 506         /* Choose SPI chip-selects */
 507         for (i = 0; i < nr_devices; i++) {
 508                 if (devices[i].controller_data)
 509                         cs_pin = (unsigned long) devices[i].controller_data;
 510                 else if (devices[i].bus_num == 0)
 511                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 512                 else
 513                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 514
 515                 if (devices[i].bus_num == 0)
 516                         enable_spi0 = 1;
 517                 else
 518                         enable_spi1 = 1;
 519
 520                 /* enable chip-select pin */
 521                 at91_set_gpio_output(cs_pin, 1);
 522
 523                 /* pass chip-select pin to driver */
 524                 devices[i].controller_data = (void *) cs_pin;
 525         }
 526
 527         spi_register_board_info(devices, nr_devices);
 528
 529         /* Configure SPI bus(es) */
 530         if (enable_spi0) {
 531                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 532                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 533                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI0_SPCK */
 534
 535                 platform_device_register(&at572d940hf_spi0_device);
 536         }
 537         if (enable_spi1) {
 538                 at91_set_A_periph(AT91_PIN_PC0, 0);     /* SPI1_MISO */
 539                 at91_set_A_periph(AT91_PIN_PC1, 0);     /* SPI1_MOSI */
 540                 at91_set_A_periph(AT91_PIN_PC2, 0);     /* SPI1_SPCK */
 541
 542                 platform_device_register(&at572d940hf_spi1_device);
 543         }
 544 }
 545 #else
 546 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 547 #endif
 548
 549
 550 /* --------------------------------------------------------------------
 551  *  Timer/Counter blocks
 552  * -------------------------------------------------------------------- */
 553
 554 #ifdef CONFIG_ATMEL_TCLIB
 555
 556 static struct resource tcb_resources[] = {
 557         [0] = {
 558                 .start  = AT572D940HF_BASE_TCB,
 559                 .end    = AT572D940HF_BASE_TCB + SZ_16K - 1,
 560                 .flags  = IORESOURCE_MEM,
 561         },
 562         [1] = {
 563                 .start  = AT572D940HF_ID_TC0,
 564                 .end    = AT572D940HF_ID_TC0,
 565                 .flags  = IORESOURCE_IRQ,
 566         },
 567         [2] = {
 568                 .start  = AT572D940HF_ID_TC1,
 569                 .end    = AT572D940HF_ID_TC1,
 570                 .flags  = IORESOURCE_IRQ,
 571         },
 572         [3] = {
 573                 .start  = AT572D940HF_ID_TC2,
 574                 .end    = AT572D940HF_ID_TC2,
 575                 .flags  = IORESOURCE_IRQ,
 576         },
 577 };
 578
 579 static struct platform_device at572d940hf_tcb_device = {
 580         .name           = "atmel_tcb",
 581         .id             = 0,
 582         .resource       = tcb_resources,
 583         .num_resources  = ARRAY_SIZE(tcb_resources),
 584 };
 585
 586 static void __init at91_add_device_tc(void)
 587 {
 588         platform_device_register(&at572d940hf_tcb_device);
 589 }
 590 #else
 591 static void __init at91_add_device_tc(void) { }
 592 #endif
 593
 594
 595 /* --------------------------------------------------------------------
 596  *  RTT
 597  * -------------------------------------------------------------------- */
 598
 599 static struct resource rtt_resources[] = {
 600         {
 601                 .start  = AT91_BASE_SYS + AT91_RTT,
 602                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
 603                 .flags  = IORESOURCE_MEM,
 604         }
 605 };
 606
 607 static struct platform_device at572d940hf_rtt_device = {
 608         .name           = "at91_rtt",
 609         .id             = 0,
 610         .resource       = rtt_resources,
 611         .num_resources  = ARRAY_SIZE(rtt_resources),
 612 };
 613
 614 static void __init at91_add_device_rtt(void)
 615 {
 616         platform_device_register(&at572d940hf_rtt_device);
 617 }
 618
 619
 620 /* --------------------------------------------------------------------
 621  *  Watchdog
 622  * -------------------------------------------------------------------- */
 623
 624 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 625 static struct platform_device at572d940hf_wdt_device = {
 626         .name           = "at91_wdt",
 627         .id             = -1,
 628         .num_resources  = 0,
 629 };
 630
 631 static void __init at91_add_device_watchdog(void)
 632 {
 633         platform_device_register(&at572d940hf_wdt_device);
 634 }
 635 #else
 636 static void __init at91_add_device_watchdog(void) {}
 637 #endif
 638
 639
 640 /* --------------------------------------------------------------------
 641  *  UART
 642  * -------------------------------------------------------------------- */
 643
 644 #if defined(CONFIG_SERIAL_ATMEL)
 645 static struct resource dbgu_resources[] = {
 646         [0] = {
 647                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 648                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 649                 .flags  = IORESOURCE_MEM,
 650         },
 651         [1] = {
 652                 .start  = AT91_ID_SYS,
 653                 .end    = AT91_ID_SYS,
 654                 .flags  = IORESOURCE_IRQ,
 655         },
 656 };
 657
 658 static struct atmel_uart_data dbgu_data = {
 659         .use_dma_tx     = 0,
 660         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 661         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 662 };
 663
 664 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 665
 666 static struct platform_device at572d940hf_dbgu_device = {
 667         .name           = "atmel_usart",
 668         .id             = 0,
 669         .dev            = {
 670                                 .dma_mask               = &dbgu_dmamask,
 671                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 672                                 .platform_data          = &dbgu_data,
 673         },
 674         .resource       = dbgu_resources,
 675         .num_resources  = ARRAY_SIZE(dbgu_resources),
 676 };
 677
 678 static inline void configure_dbgu_pins(void)
 679 {
 680         at91_set_A_periph(AT91_PIN_PC31, 1);            /* DTXD */
 681         at91_set_A_periph(AT91_PIN_PC30, 0);            /* DRXD */
 682 }
 683
 684 static struct resource uart0_resources[] = {
 685         [0] = {
 686                 .start  = AT572D940HF_BASE_US0,
 687                 .end    = AT572D940HF_BASE_US0 + SZ_16K - 1,
 688                 .flags  = IORESOURCE_MEM,
 689         },
 690         [1] = {
 691                 .start  = AT572D940HF_ID_US0,
 692                 .end    = AT572D940HF_ID_US0,
 693                 .flags  = IORESOURCE_IRQ,
 694         },
 695 };
 696
 697 static struct atmel_uart_data uart0_data = {
 698         .use_dma_tx     = 1,
 699         .use_dma_rx     = 1,
 700 };
 701
 702 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 703
 704 static struct platform_device at572d940hf_uart0_device = {
 705         .name           = "atmel_usart",
 706         .id             = 1,
 707         .dev            = {
 708                                 .dma_mask               = &uart0_dmamask,
 709                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 710                                 .platform_data          = &uart0_data,
 711         },
 712         .resource       = uart0_resources,
 713         .num_resources  = ARRAY_SIZE(uart0_resources),
 714 };
 715
 716 static inline void configure_usart0_pins(unsigned pins)
 717 {
 718         at91_set_A_periph(AT91_PIN_PA8, 1);             /* TXD0 */
 719         at91_set_A_periph(AT91_PIN_PA7, 0);             /* RXD0 */
 720
 721         if (pins & ATMEL_UART_RTS)
 722                 at91_set_A_periph(AT91_PIN_PA10, 0);    /* RTS0 */
 723         if (pins & ATMEL_UART_CTS)
 724                 at91_set_A_periph(AT91_PIN_PA9, 0);     /* CTS0 */
 725 }
 726
 727 static struct resource uart1_resources[] = {
 728         [0] = {
 729                 .start  = AT572D940HF_BASE_US1,
 730                 .end    = AT572D940HF_BASE_US1 + SZ_16K - 1,
 731                 .flags  = IORESOURCE_MEM,
 732         },
 733         [1] = {
 734                 .start  = AT572D940HF_ID_US1,
 735                 .end    = AT572D940HF_ID_US1,
 736                 .flags  = IORESOURCE_IRQ,
 737         },
 738 };
 739
 740 static struct atmel_uart_data uart1_data = {
 741         .use_dma_tx     = 1,
 742         .use_dma_rx     = 1,
 743 };
 744
 745 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 746
 747 static struct platform_device at572d940hf_uart1_device = {
 748         .name           = "atmel_usart",
 749         .id             = 2,
 750         .dev            = {
 751                                 .dma_mask               = &uart1_dmamask,
 752                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 753                                 .platform_data          = &uart1_data,
 754         },
 755         .resource       = uart1_resources,
 756         .num_resources  = ARRAY_SIZE(uart1_resources),
 757 };
 758
 759 static inline void configure_usart1_pins(unsigned pins)
 760 {
 761         at91_set_A_periph(AT91_PIN_PC10, 1);            /* TXD1 */
 762         at91_set_A_periph(AT91_PIN_PC9 , 0);            /* RXD1 */
 763
 764         if (pins & ATMEL_UART_RTS)
 765                 at91_set_A_periph(AT91_PIN_PC12, 0);    /* RTS1 */
 766         if (pins & ATMEL_UART_CTS)
 767                 at91_set_A_periph(AT91_PIN_PC11, 0);    /* CTS1 */
 768 }
 769
 770 static struct resource uart2_resources[] = {
 771         [0] = {
 772                 .start  = AT572D940HF_BASE_US2,
 773                 .end    = AT572D940HF_BASE_US2 + SZ_16K - 1,
 774                 .flags  = IORESOURCE_MEM,
 775         },
 776         [1] = {
 777                 .start  = AT572D940HF_ID_US2,
 778                 .end    = AT572D940HF_ID_US2,
 779                 .flags  = IORESOURCE_IRQ,
 780         },
 781 };
 782
 783 static struct atmel_uart_data uart2_data = {
 784         .use_dma_tx     = 1,
 785         .use_dma_rx     = 1,
 786 };
 787
 788 static u64 uart2_dmamask = DMA_BIT_MASK(32);
 789
 790 static struct platform_device at572d940hf_uart2_device = {
 791         .name           = "atmel_usart",
 792         .id             = 3,
 793         .dev            = {
 794                                 .dma_mask               = &uart2_dmamask,
 795                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 796                                 .platform_data          = &uart2_data,
 797         },
 798         .resource       = uart2_resources,
 799         .num_resources  = ARRAY_SIZE(uart2_resources),
 800 };
 801
 802 static inline void configure_usart2_pins(unsigned pins)
 803 {
 804         at91_set_A_periph(AT91_PIN_PC15, 1);            /* TXD2 */
 805         at91_set_A_periph(AT91_PIN_PC14, 0);            /* RXD2 */
 806
 807         if (pins & ATMEL_UART_RTS)
 808                 at91_set_A_periph(AT91_PIN_PC17, 0);    /* RTS2 */
 809         if (pins & ATMEL_UART_CTS)
 810                 at91_set_A_periph(AT91_PIN_PC16, 0);    /* CTS2 */
 811 }
 812
 813 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
 814 struct platform_device *atmel_default_console_device;   /* the serial console device */
 815
 816 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
 817 {
 818         struct platform_device *pdev;
 819         struct atmel_uart_data *pdata;
 820
 821         switch (id) {
 822                 case 0:         /* DBGU */
 823                         pdev = &at572d940hf_dbgu_device;
 824                         configure_dbgu_pins();
 825                         break;
 826                 case AT572D940HF_ID_US0:
 827                         pdev = &at572d940hf_uart0_device;
 828                         configure_usart0_pins(pins);
 829                         break;
 830                 case AT572D940HF_ID_US1:
 831                         pdev = &at572d940hf_uart1_device;
 832                         configure_usart1_pins(pins);
 833                         break;
 834                 case AT572D940HF_ID_US2:
 835                         pdev = &at572d940hf_uart2_device;
 836                         configure_usart2_pins(pins);
 837                         break;
 838                 default:
 839                         return;
 840         }
 841         pdata = pdev->dev.platform_data;
 842         pdata->num = portnr;            /* update to mapped ID */
 843
 844         if (portnr < ATMEL_MAX_UART)
 845                 at91_uarts[portnr] = pdev;
 846 }
 847
 848 void __init at91_set_serial_console(unsigned portnr)
 849 {
 850         if (portnr < ATMEL_MAX_UART) {
 851                 atmel_default_console_device = at91_uarts[portnr];
 852                 at572d940hf_set_console_clock(portnr);
 853         }
 854 }
 855
 856 void __init at91_add_device_serial(void)
 857 {
 858         int i;
 859
 860         for (i = 0; i < ATMEL_MAX_UART; i++) {
 861                 if (at91_uarts[i])
 862                         platform_device_register(at91_uarts[i]);
 863         }
 864
 865         if (!atmel_default_console_device)
 866                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 867 }
 868
 869 #else
 870 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
 871 void __init at91_set_serial_console(unsigned portnr) {}
 872 void __init at91_add_device_serial(void) {}
 873 #endif
 874
 875
 876 /* --------------------------------------------------------------------
 877  *  mAgic
 878  * -------------------------------------------------------------------- */
 879
 880 #ifdef CONFIG_MAGICV
 881 static struct resource mAgic_resources[] = {
 882         {
 883                 .start = AT91_MAGIC_PM_BASE,
 884                 .end   = AT91_MAGIC_PM_BASE + AT91_MAGIC_PM_SIZE - 1,
 885                 .flags = IORESOURCE_MEM,
 886         },
 887         {
 888                 .start = AT91_MAGIC_DM_I_BASE,
 889                 .end   = AT91_MAGIC_DM_I_BASE + AT91_MAGIC_DM_I_SIZE - 1,
 890                 .flags = IORESOURCE_MEM,
 891         },
 892         {
 893                 .start = AT91_MAGIC_DM_F_BASE,
 894                 .end   = AT91_MAGIC_DM_F_BASE + AT91_MAGIC_DM_F_SIZE - 1,
 895                 .flags = IORESOURCE_MEM,
 896         },
 897         {
 898                 .start = AT91_MAGIC_DM_DB_BASE,
 899                 .end   = AT91_MAGIC_DM_DB_BASE + AT91_MAGIC_DM_DB_SIZE - 1,
 900                 .flags = IORESOURCE_MEM,
 901         },
 902         {
 903                 .start = AT91_MAGIC_REGS_BASE,
 904                 .end   = AT91_MAGIC_REGS_BASE + AT91_MAGIC_REGS_SIZE - 1,
 905                 .flags = IORESOURCE_MEM,
 906         },
 907         {
 908                 .start = AT91_MAGIC_EXTPAGE_BASE,
 909                 .end   = AT91_MAGIC_EXTPAGE_BASE + AT91_MAGIC_EXTPAGE_SIZE - 1,
 910                 .flags = IORESOURCE_MEM,
 911         },
 912         {
 913                 .start  = AT572D940HF_ID_MSIRQ0,
 914                 .end    = AT572D940HF_ID_MSIRQ0,
 915                 .flags  = IORESOURCE_IRQ,
 916         },
 917         {
 918                 .start  = AT572D940HF_ID_MHALT,
 919                 .end    = AT572D940HF_ID_MHALT,
 920                 .flags  = IORESOURCE_IRQ,
 921         },
 922         {
 923                 .start  = AT572D940HF_ID_MEXC,
 924                 .end    = AT572D940HF_ID_MEXC,
 925                 .flags  = IORESOURCE_IRQ,
 926         },
 927         {
 928                 .start  = AT572D940HF_ID_MEDMA,
 929                 .end    = AT572D940HF_ID_MEDMA,
 930                 .flags  = IORESOURCE_IRQ,
 931         },
 932 };
 933
 934 static struct platform_device mAgic_device = {
 935         .name           = "mAgic",
 936         .id             = -1,
 937         .num_resources  = ARRAY_SIZE(mAgic_resources),
 938         .resource       = mAgic_resources,
 939 };
 940
 941 void __init at91_add_device_mAgic(void)
 942 {
 943         platform_device_register(&mAgic_device);
 944 }
 945 #else
 946 void __init at91_add_device_mAgic(void) {}
 947 #endif
 948
 949
 950 /* -------------------------------------------------------------------- */
 951
 952 /*
 953  * These devices are always present and don't need any board-specific
 954  * setup.
 955  */
 956 static int __init at91_add_standard_devices(void)
 957 {
 958         at91_add_device_rtt();
 959         at91_add_device_watchdog();
 960         at91_add_device_tc();
 961         return 0;
 962 }
 963
 964 arch_initcall(at91_add_standard_devices);