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/platform_device.h>
  16 #include <linux/i2c-gpio.h>
  17
  18 #include <asm/arch/board.h>
  19 #include <asm/arch/gpio.h>
  20 #include <asm/arch/at91sam9260.h>
  21 #include <asm/arch/at91sam926x_mc.h>
  22 #include <asm/arch/at91sam9260_matrix.h>
  23
  24 #include "generic.h"
  25
  26
  27 /* --------------------------------------------------------------------
  28  *  USB Host
  29  * -------------------------------------------------------------------- */
  30
  31 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  32 static u64 ohci_dmamask = 0xffffffffUL;
  33 static struct at91_usbh_data usbh_data;
  34
  35 static struct resource usbh_resources[] = {
  36         [0] = {
  37                 .start  = AT91SAM9260_UHP_BASE,
  38                 .end    = AT91SAM9260_UHP_BASE + SZ_1M - 1,
  39                 .flags  = IORESOURCE_MEM,
  40         },
  41         [1] = {
  42                 .start  = AT91SAM9260_ID_UHP,
  43                 .end    = AT91SAM9260_ID_UHP,
  44                 .flags  = IORESOURCE_IRQ,
  45         },
  46 };
  47
  48 static struct platform_device at91_usbh_device = {
  49         .name           = "at91_ohci",
  50         .id             = -1,
  51         .dev            = {
  52                                 .dma_mask               = &ohci_dmamask,
  53                                 .coherent_dma_mask      = 0xffffffff,
  54                                 .platform_data          = &usbh_data,
  55         },
  56         .resource       = usbh_resources,
  57         .num_resources  = ARRAY_SIZE(usbh_resources),
  58 };
  59
  60 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  61 {
  62         if (!data)
  63                 return;
  64
  65         usbh_data = *data;
  66         platform_device_register(&at91_usbh_device);
  67 }
  68 #else
  69 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  70 #endif
  71
  72
  73 /* --------------------------------------------------------------------
  74  *  USB Device (Gadget)
  75  * -------------------------------------------------------------------- */
  76
  77 #ifdef CONFIG_USB_GADGET_AT91
  78 static struct at91_udc_data udc_data;
  79
  80 static struct resource udc_resources[] = {
  81         [0] = {
  82                 .start  = AT91SAM9260_BASE_UDP,
  83                 .end    = AT91SAM9260_BASE_UDP + SZ_16K - 1,
  84                 .flags  = IORESOURCE_MEM,
  85         },
  86         [1] = {
  87                 .start  = AT91SAM9260_ID_UDP,
  88                 .end    = AT91SAM9260_ID_UDP,
  89                 .flags  = IORESOURCE_IRQ,
  90         },
  91 };
  92
  93 static struct platform_device at91_udc_device = {
  94         .name           = "at91_udc",
  95         .id             = -1,
  96         .dev            = {
  97                                 .platform_data          = &udc_data,
  98         },
  99         .resource       = udc_resources,
 100         .num_resources  = ARRAY_SIZE(udc_resources),
 101 };
 102
 103 void __init at91_add_device_udc(struct at91_udc_data *data)
 104 {
 105         if (!data)
 106                 return;
 107
 108         if (data->vbus_pin) {
 109                 at91_set_gpio_input(data->vbus_pin, 0);
 110                 at91_set_deglitch(data->vbus_pin, 1);
 111         }
 112
 113         /* Pullup pin is handled internally by USB device peripheral */
 114
 115         udc_data = *data;
 116         platform_device_register(&at91_udc_device);
 117 }
 118 #else
 119 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 120 #endif
 121
 122
 123 /* --------------------------------------------------------------------
 124  *  Ethernet
 125  * -------------------------------------------------------------------- */
 126
 127 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 128 static u64 eth_dmamask = 0xffffffffUL;
 129 static struct at91_eth_data eth_data;
 130
 131 static struct resource eth_resources[] = {
 132         [0] = {
 133                 .start  = AT91SAM9260_BASE_EMAC,
 134                 .end    = AT91SAM9260_BASE_EMAC + SZ_16K - 1,
 135                 .flags  = IORESOURCE_MEM,
 136         },
 137         [1] = {
 138                 .start  = AT91SAM9260_ID_EMAC,
 139                 .end    = AT91SAM9260_ID_EMAC,
 140                 .flags  = IORESOURCE_IRQ,
 141         },
 142 };
 143
 144 static struct platform_device at91sam9260_eth_device = {
 145         .name           = "macb",
 146         .id             = -1,
 147         .dev            = {
 148                                 .dma_mask               = &eth_dmamask,
 149                                 .coherent_dma_mask      = 0xffffffff,
 150                                 .platform_data          = &eth_data,
 151         },
 152         .resource       = eth_resources,
 153         .num_resources  = ARRAY_SIZE(eth_resources),
 154 };
 155
 156 void __init at91_add_device_eth(struct at91_eth_data *data)
 157 {
 158         if (!data)
 159                 return;
 160
 161         if (data->phy_irq_pin) {
 162                 at91_set_gpio_input(data->phy_irq_pin, 0);
 163                 at91_set_deglitch(data->phy_irq_pin, 1);
 164         }
 165
 166         /* Pins used for MII and RMII */
 167         at91_set_A_periph(AT91_PIN_PA19, 0);    /* ETXCK_EREFCK */
 168         at91_set_A_periph(AT91_PIN_PA17, 0);    /* ERXDV */
 169         at91_set_A_periph(AT91_PIN_PA14, 0);    /* ERX0 */
 170         at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERX1 */
 171         at91_set_A_periph(AT91_PIN_PA18, 0);    /* ERXER */
 172         at91_set_A_periph(AT91_PIN_PA16, 0);    /* ETXEN */
 173         at91_set_A_periph(AT91_PIN_PA12, 0);    /* ETX0 */
 174         at91_set_A_periph(AT91_PIN_PA13, 0);    /* ETX1 */
 175         at91_set_A_periph(AT91_PIN_PA21, 0);    /* EMDIO */
 176         at91_set_A_periph(AT91_PIN_PA20, 0);    /* EMDC */
 177
 178         if (!data->is_rmii) {
 179                 at91_set_B_periph(AT91_PIN_PA28, 0);    /* ECRS */
 180                 at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECOL */
 181                 at91_set_B_periph(AT91_PIN_PA25, 0);    /* ERX2 */
 182                 at91_set_B_periph(AT91_PIN_PA26, 0);    /* ERX3 */
 183                 at91_set_B_periph(AT91_PIN_PA27, 0);    /* ERXCK */
 184                 at91_set_B_periph(AT91_PIN_PA23, 0);    /* ETX2 */
 185                 at91_set_B_periph(AT91_PIN_PA24, 0);    /* ETX3 */
 186                 at91_set_B_periph(AT91_PIN_PA22, 0);    /* ETXER */
 187         }
 188
 189         eth_data = *data;
 190         platform_device_register(&at91sam9260_eth_device);
 191 }
 192 #else
 193 void __init at91_add_device_eth(struct at91_eth_data *data) {}
 194 #endif
 195
 196
 197 /* --------------------------------------------------------------------
 198  *  MMC / SD
 199  * -------------------------------------------------------------------- */
 200
 201 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 202 static u64 mmc_dmamask = 0xffffffffUL;
 203 static struct at91_mmc_data mmc_data;
 204
 205 static struct resource mmc_resources[] = {
 206         [0] = {
 207                 .start  = AT91SAM9260_BASE_MCI,
 208                 .end    = AT91SAM9260_BASE_MCI + SZ_16K - 1,
 209                 .flags  = IORESOURCE_MEM,
 210         },
 211         [1] = {
 212                 .start  = AT91SAM9260_ID_MCI,
 213                 .end    = AT91SAM9260_ID_MCI,
 214                 .flags  = IORESOURCE_IRQ,
 215         },
 216 };
 217
 218 static struct platform_device at91sam9260_mmc_device = {
 219         .name           = "at91_mci",
 220         .id             = -1,
 221         .dev            = {
 222                                 .dma_mask               = &mmc_dmamask,
 223                                 .coherent_dma_mask      = 0xffffffff,
 224                                 .platform_data          = &mmc_data,
 225         },
 226         .resource       = mmc_resources,
 227         .num_resources  = ARRAY_SIZE(mmc_resources),
 228 };
 229
 230 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 231 {
 232         if (!data)
 233                 return;
 234
 235         /* input/irq */
 236         if (data->det_pin) {
 237                 at91_set_gpio_input(data->det_pin, 1);
 238                 at91_set_deglitch(data->det_pin, 1);
 239         }
 240         if (data->wp_pin)
 241                 at91_set_gpio_input(data->wp_pin, 1);
 242         if (data->vcc_pin)
 243                 at91_set_gpio_output(data->vcc_pin, 0);
 244
 245         /* CLK */
 246         at91_set_A_periph(AT91_PIN_PA8, 0);
 247
 248         if (data->slot_b) {
 249                 /* CMD */
 250                 at91_set_B_periph(AT91_PIN_PA1, 1);
 251
 252                 /* DAT0, maybe DAT1..DAT3 */
 253                 at91_set_B_periph(AT91_PIN_PA0, 1);
 254                 if (data->wire4) {
 255                         at91_set_B_periph(AT91_PIN_PA5, 1);
 256                         at91_set_B_periph(AT91_PIN_PA4, 1);
 257                         at91_set_B_periph(AT91_PIN_PA3, 1);
 258                 }
 259         } else {
 260                 /* CMD */
 261                 at91_set_A_periph(AT91_PIN_PA7, 1);
 262
 263                 /* DAT0, maybe DAT1..DAT3 */
 264                 at91_set_A_periph(AT91_PIN_PA6, 1);
 265                 if (data->wire4) {
 266                         at91_set_A_periph(AT91_PIN_PA9, 1);
 267                         at91_set_A_periph(AT91_PIN_PA10, 1);
 268                         at91_set_A_periph(AT91_PIN_PA11, 1);
 269                 }
 270         }
 271
 272         mmc_data = *data;
 273         platform_device_register(&at91sam9260_mmc_device);
 274 }
 275 #else
 276 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 277 #endif
 278
 279
 280 /* --------------------------------------------------------------------
 281  *  NAND / SmartMedia
 282  * -------------------------------------------------------------------- */
 283
 284 #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE)
 285 static struct at91_nand_data nand_data;
 286
 287 #define NAND_BASE       AT91_CHIPSELECT_3
 288
 289 static struct resource nand_resources[] = {
 290         {
 291                 .start  = NAND_BASE,
 292                 .end    = NAND_BASE + SZ_8M - 1,
 293                 .flags  = IORESOURCE_MEM,
 294         }
 295 };
 296
 297 static struct platform_device at91sam9260_nand_device = {
 298         .name           = "at91_nand",
 299         .id             = -1,
 300         .dev            = {
 301                                 .platform_data  = &nand_data,
 302         },
 303         .resource       = nand_resources,
 304         .num_resources  = ARRAY_SIZE(nand_resources),
 305 };
 306
 307 void __init at91_add_device_nand(struct at91_nand_data *data)
 308 {
 309         unsigned long csa, mode;
 310
 311         if (!data)
 312                 return;
 313
 314         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 315         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC);
 316
 317         /* set the bus interface characteristics */
 318         at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0)
 319                         | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0));
 320
 321         at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(3) | AT91_SMC_NCS_WRPULSE_(3)
 322                         | AT91_SMC_NRDPULSE_(3) | AT91_SMC_NCS_RDPULSE_(3));
 323
 324         at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(5) | AT91_SMC_NRDCYCLE_(5));
 325
 326         if (data->bus_width_16)
 327                 mode = AT91_SMC_DBW_16;
 328         else
 329                 mode = AT91_SMC_DBW_8;
 330         at91_sys_write(AT91_SMC_MODE(3), mode | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(2));
 331
 332         /* enable pin */
 333         if (data->enable_pin)
 334                 at91_set_gpio_output(data->enable_pin, 1);
 335
 336         /* ready/busy pin */
 337         if (data->rdy_pin)
 338                 at91_set_gpio_input(data->rdy_pin, 1);
 339
 340         /* card detect pin */
 341         if (data->det_pin)
 342                 at91_set_gpio_input(data->det_pin, 1);
 343
 344         nand_data = *data;
 345         platform_device_register(&at91sam9260_nand_device);
 346 }
 347 #else
 348 void __init at91_add_device_nand(struct at91_nand_data *data) {}
 349 #endif
 350
 351
 352 /* --------------------------------------------------------------------
 353  *  TWI (i2c)
 354  * -------------------------------------------------------------------- */
 355
 356 /*
 357  * Prefer the GPIO code since the TWI controller isn't robust
 358  * (gets overruns and underruns under load) and can only issue
 359  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 360  */
 361
 362 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 363
 364 static struct i2c_gpio_platform_data pdata = {
 365         .sda_pin                = AT91_PIN_PA23,
 366         .sda_is_open_drain      = 1,
 367         .scl_pin                = AT91_PIN_PA24,
 368         .scl_is_open_drain      = 1,
 369         .udelay                 = 2,            /* ~100 kHz */
 370 };
 371
 372 static struct platform_device at91sam9260_twi_device = {
 373         .name                   = "i2c-gpio",
 374         .id                     = -1,
 375         .dev.platform_data      = &pdata,
 376 };
 377
 378 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 379 {
 380         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
 381         at91_set_multi_drive(AT91_PIN_PA23, 1);
 382
 383         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
 384         at91_set_multi_drive(AT91_PIN_PA24, 1);
 385
 386         i2c_register_board_info(0, devices, nr_devices);
 387         platform_device_register(&at91sam9260_twi_device);
 388 }
 389
 390 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 391
 392 static struct resource twi_resources[] = {
 393         [0] = {
 394                 .start  = AT91SAM9260_BASE_TWI,
 395                 .end    = AT91SAM9260_BASE_TWI + SZ_16K - 1,
 396                 .flags  = IORESOURCE_MEM,
 397         },
 398         [1] = {
 399                 .start  = AT91SAM9260_ID_TWI,
 400                 .end    = AT91SAM9260_ID_TWI,
 401                 .flags  = IORESOURCE_IRQ,
 402         },
 403 };
 404
 405 static struct platform_device at91sam9260_twi_device = {
 406         .name           = "at91_i2c",
 407         .id             = -1,
 408         .resource       = twi_resources,
 409         .num_resources  = ARRAY_SIZE(twi_resources),
 410 };
 411
 412 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 413 {
 414         /* pins used for TWI interface */
 415         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 416         at91_set_multi_drive(AT91_PIN_PA23, 1);
 417
 418         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 419         at91_set_multi_drive(AT91_PIN_PA24, 1);
 420
 421         i2c_register_board_info(0, devices, nr_devices);
 422         platform_device_register(&at91sam9260_twi_device);
 423 }
 424 #else
 425 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 426 #endif
 427
 428
 429 /* --------------------------------------------------------------------
 430  *  SPI
 431  * -------------------------------------------------------------------- */
 432
 433 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 434 static u64 spi_dmamask = 0xffffffffUL;
 435
 436 static struct resource spi0_resources[] = {
 437         [0] = {
 438                 .start  = AT91SAM9260_BASE_SPI0,
 439                 .end    = AT91SAM9260_BASE_SPI0 + SZ_16K - 1,
 440                 .flags  = IORESOURCE_MEM,
 441         },
 442         [1] = {
 443                 .start  = AT91SAM9260_ID_SPI0,
 444                 .end    = AT91SAM9260_ID_SPI0,
 445                 .flags  = IORESOURCE_IRQ,
 446         },
 447 };
 448
 449 static struct platform_device at91sam9260_spi0_device = {
 450         .name           = "atmel_spi",
 451         .id             = 0,
 452         .dev            = {
 453                                 .dma_mask               = &spi_dmamask,
 454                                 .coherent_dma_mask      = 0xffffffff,
 455         },
 456         .resource       = spi0_resources,
 457         .num_resources  = ARRAY_SIZE(spi0_resources),
 458 };
 459
 460 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PC11, AT91_PIN_PC16, AT91_PIN_PC17 };
 461
 462 static struct resource spi1_resources[] = {
 463         [0] = {
 464                 .start  = AT91SAM9260_BASE_SPI1,
 465                 .end    = AT91SAM9260_BASE_SPI1 + SZ_16K - 1,
 466                 .flags  = IORESOURCE_MEM,
 467         },
 468         [1] = {
 469                 .start  = AT91SAM9260_ID_SPI1,
 470                 .end    = AT91SAM9260_ID_SPI1,
 471                 .flags  = IORESOURCE_IRQ,
 472         },
 473 };
 474
 475 static struct platform_device at91sam9260_spi1_device = {
 476         .name           = "atmel_spi",
 477         .id             = 1,
 478         .dev            = {
 479                                 .dma_mask               = &spi_dmamask,
 480                                 .coherent_dma_mask      = 0xffffffff,
 481         },
 482         .resource       = spi1_resources,
 483         .num_resources  = ARRAY_SIZE(spi1_resources),
 484 };
 485
 486 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PC5, AT91_PIN_PC4, AT91_PIN_PC3 };
 487
 488 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 489 {
 490         int i;
 491         unsigned long cs_pin;
 492         short enable_spi0 = 0;
 493         short enable_spi1 = 0;
 494
 495         /* Choose SPI chip-selects */
 496         for (i = 0; i < nr_devices; i++) {
 497                 if (devices[i].controller_data)
 498                         cs_pin = (unsigned long) devices[i].controller_data;
 499                 else if (devices[i].bus_num == 0)
 500                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 501                 else
 502                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 503
 504                 if (devices[i].bus_num == 0)
 505                         enable_spi0 = 1;
 506                 else
 507                         enable_spi1 = 1;
 508
 509                 /* enable chip-select pin */
 510                 at91_set_gpio_output(cs_pin, 1);
 511
 512                 /* pass chip-select pin to driver */
 513                 devices[i].controller_data = (void *) cs_pin;
 514         }
 515
 516         spi_register_board_info(devices, nr_devices);
 517
 518         /* Configure SPI bus(es) */
 519         if (enable_spi0) {
 520                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 521                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 522                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI1_SPCK */
 523
 524                 at91_clock_associate("spi0_clk", &at91sam9260_spi0_device.dev, "spi_clk");
 525                 platform_device_register(&at91sam9260_spi0_device);
 526         }
 527         if (enable_spi1) {
 528                 at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI1_MISO */
 529                 at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI1_MOSI */
 530                 at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI1_SPCK */
 531
 532                 at91_clock_associate("spi1_clk", &at91sam9260_spi1_device.dev, "spi_clk");
 533                 platform_device_register(&at91sam9260_spi1_device);
 534         }
 535 }
 536 #else
 537 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 538 #endif
 539
 540
 541 /* --------------------------------------------------------------------
 542  *  RTT
 543  * -------------------------------------------------------------------- */
 544
 545 static struct resource rtt_resources[] = {
 546         {
 547                 .start  = AT91_BASE_SYS + AT91_RTT,
 548                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
 549                 .flags  = IORESOURCE_MEM,
 550         }
 551 };
 552
 553 static struct platform_device at91sam9260_rtt_device = {
 554         .name           = "at91_rtt",
 555         .id             = -1,
 556         .resource       = rtt_resources,
 557         .num_resources  = ARRAY_SIZE(rtt_resources),
 558 };
 559
 560 static void __init at91_add_device_rtt(void)
 561 {
 562         platform_device_register(&at91sam9260_rtt_device);
 563 }
 564
 565
 566 /* --------------------------------------------------------------------
 567  *  Watchdog
 568  * -------------------------------------------------------------------- */
 569
 570 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
 571 static struct platform_device at91sam9260_wdt_device = {
 572         .name           = "at91_wdt",
 573         .id             = -1,
 574         .num_resources  = 0,
 575 };
 576
 577 static void __init at91_add_device_watchdog(void)
 578 {
 579         platform_device_register(&at91sam9260_wdt_device);
 580 }
 581 #else
 582 static void __init at91_add_device_watchdog(void) {}
 583 #endif
 584
 585
 586 /* --------------------------------------------------------------------
 587  *  LEDs
 588  * -------------------------------------------------------------------- */
 589
 590 #if defined(CONFIG_LEDS)
 591 u8 at91_leds_cpu;
 592 u8 at91_leds_timer;
 593
 594 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
 595 {
 596         /* Enable GPIO to access the LEDs */
 597         at91_set_gpio_output(cpu_led, 1);
 598         at91_set_gpio_output(timer_led, 1);
 599
 600         at91_leds_cpu   = cpu_led;
 601         at91_leds_timer = timer_led;
 602 }
 603 #else
 604 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 605 #endif
 606
 607
 608 /* --------------------------------------------------------------------
 609  *  UART
 610  * -------------------------------------------------------------------- */
 611 #if defined(CONFIG_SERIAL_ATMEL)
 612 static struct resource dbgu_resources[] = {
 613         [0] = {
 614                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 615                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 616                 .flags  = IORESOURCE_MEM,
 617         },
 618         [1] = {
 619                 .start  = AT91_ID_SYS,
 620                 .end    = AT91_ID_SYS,
 621                 .flags  = IORESOURCE_IRQ,
 622         },
 623 };
 624
 625 static struct atmel_uart_data dbgu_data = {
 626         .use_dma_tx     = 0,
 627         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 628         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 629 };
 630
 631 static struct platform_device at91sam9260_dbgu_device = {
 632         .name           = "atmel_usart",
 633         .id             = 0,
 634         .dev            = {
 635                                 .platform_data  = &dbgu_data,
 636                                 .coherent_dma_mask = 0xffffffff,
 637         },
 638         .resource       = dbgu_resources,
 639         .num_resources  = ARRAY_SIZE(dbgu_resources),
 640 };
 641
 642 static inline void configure_dbgu_pins(void)
 643 {
 644         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 645         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 646 }
 647
 648 static struct resource uart0_resources[] = {
 649         [0] = {
 650                 .start  = AT91SAM9260_BASE_US0,
 651                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 652                 .flags  = IORESOURCE_MEM,
 653         },
 654         [1] = {
 655                 .start  = AT91SAM9260_ID_US0,
 656                 .end    = AT91SAM9260_ID_US0,
 657                 .flags  = IORESOURCE_IRQ,
 658         },
 659 };
 660
 661 static struct atmel_uart_data uart0_data = {
 662         .use_dma_tx     = 1,
 663         .use_dma_rx     = 1,
 664 };
 665
 666 static struct platform_device at91sam9260_uart0_device = {
 667         .name           = "atmel_usart",
 668         .id             = 1,
 669         .dev            = {
 670                                 .platform_data  = &uart0_data,
 671                                 .coherent_dma_mask = 0xffffffff,
 672         },
 673         .resource       = uart0_resources,
 674         .num_resources  = ARRAY_SIZE(uart0_resources),
 675 };
 676
 677 static inline void configure_usart0_pins(void)
 678 {
 679         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 680         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 681         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS0 */
 682         at91_set_A_periph(AT91_PIN_PB27, 0);            /* CTS0 */
 683         at91_set_A_periph(AT91_PIN_PB24, 0);            /* DTR0 */
 684         at91_set_A_periph(AT91_PIN_PB22, 0);            /* DSR0 */
 685         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD0 */
 686         at91_set_A_periph(AT91_PIN_PB25, 0);            /* RI0 */
 687 }
 688
 689 static struct resource uart1_resources[] = {
 690         [0] = {
 691                 .start  = AT91SAM9260_BASE_US1,
 692                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 693                 .flags  = IORESOURCE_MEM,
 694         },
 695         [1] = {
 696                 .start  = AT91SAM9260_ID_US1,
 697                 .end    = AT91SAM9260_ID_US1,
 698                 .flags  = IORESOURCE_IRQ,
 699         },
 700 };
 701
 702 static struct atmel_uart_data uart1_data = {
 703         .use_dma_tx     = 1,
 704         .use_dma_rx     = 1,
 705 };
 706
 707 static struct platform_device at91sam9260_uart1_device = {
 708         .name           = "atmel_usart",
 709         .id             = 2,
 710         .dev            = {
 711                                 .platform_data  = &uart1_data,
 712                                 .coherent_dma_mask = 0xffffffff,
 713         },
 714         .resource       = uart1_resources,
 715         .num_resources  = ARRAY_SIZE(uart1_resources),
 716 };
 717
 718 static inline void configure_usart1_pins(void)
 719 {
 720         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 721         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 722         at91_set_A_periph(AT91_PIN_PB28, 0);            /* RTS1 */
 723         at91_set_A_periph(AT91_PIN_PB29, 0);            /* CTS1 */
 724 }
 725
 726 static struct resource uart2_resources[] = {
 727         [0] = {
 728                 .start  = AT91SAM9260_BASE_US2,
 729                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 730                 .flags  = IORESOURCE_MEM,
 731         },
 732         [1] = {
 733                 .start  = AT91SAM9260_ID_US2,
 734                 .end    = AT91SAM9260_ID_US2,
 735                 .flags  = IORESOURCE_IRQ,
 736         },
 737 };
 738
 739 static struct atmel_uart_data uart2_data = {
 740         .use_dma_tx     = 1,
 741         .use_dma_rx     = 1,
 742 };
 743
 744 static struct platform_device at91sam9260_uart2_device = {
 745         .name           = "atmel_usart",
 746         .id             = 3,
 747         .dev            = {
 748                                 .platform_data  = &uart2_data,
 749                                 .coherent_dma_mask = 0xffffffff,
 750         },
 751         .resource       = uart2_resources,
 752         .num_resources  = ARRAY_SIZE(uart2_resources),
 753 };
 754
 755 static inline void configure_usart2_pins(void)
 756 {
 757         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 758         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 759 }
 760
 761 static struct resource uart3_resources[] = {
 762         [0] = {
 763                 .start  = AT91SAM9260_BASE_US3,
 764                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 765                 .flags  = IORESOURCE_MEM,
 766         },
 767         [1] = {
 768                 .start  = AT91SAM9260_ID_US3,
 769                 .end    = AT91SAM9260_ID_US3,
 770                 .flags  = IORESOURCE_IRQ,
 771         },
 772 };
 773
 774 static struct atmel_uart_data uart3_data = {
 775         .use_dma_tx     = 1,
 776         .use_dma_rx     = 1,
 777 };
 778
 779 static struct platform_device at91sam9260_uart3_device = {
 780         .name           = "atmel_usart",
 781         .id             = 4,
 782         .dev            = {
 783                                 .platform_data  = &uart3_data,
 784                                 .coherent_dma_mask = 0xffffffff,
 785         },
 786         .resource       = uart3_resources,
 787         .num_resources  = ARRAY_SIZE(uart3_resources),
 788 };
 789
 790 static inline void configure_usart3_pins(void)
 791 {
 792         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 793         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 794 }
 795
 796 static struct resource uart4_resources[] = {
 797         [0] = {
 798                 .start  = AT91SAM9260_BASE_US4,
 799                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 800                 .flags  = IORESOURCE_MEM,
 801         },
 802         [1] = {
 803                 .start  = AT91SAM9260_ID_US4,
 804                 .end    = AT91SAM9260_ID_US4,
 805                 .flags  = IORESOURCE_IRQ,
 806         },
 807 };
 808
 809 static struct atmel_uart_data uart4_data = {
 810         .use_dma_tx     = 1,
 811         .use_dma_rx     = 1,
 812 };
 813
 814 static struct platform_device at91sam9260_uart4_device = {
 815         .name           = "atmel_usart",
 816         .id             = 5,
 817         .dev            = {
 818                                 .platform_data  = &uart4_data,
 819                                 .coherent_dma_mask = 0xffffffff,
 820         },
 821         .resource       = uart4_resources,
 822         .num_resources  = ARRAY_SIZE(uart4_resources),
 823 };
 824
 825 static inline void configure_usart4_pins(void)
 826 {
 827         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 828         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 829 }
 830
 831 static struct resource uart5_resources[] = {
 832         [0] = {
 833                 .start  = AT91SAM9260_BASE_US5,
 834                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 835                 .flags  = IORESOURCE_MEM,
 836         },
 837         [1] = {
 838                 .start  = AT91SAM9260_ID_US5,
 839                 .end    = AT91SAM9260_ID_US5,
 840                 .flags  = IORESOURCE_IRQ,
 841         },
 842 };
 843
 844 static struct atmel_uart_data uart5_data = {
 845         .use_dma_tx     = 1,
 846         .use_dma_rx     = 1,
 847 };
 848
 849 static struct platform_device at91sam9260_uart5_device = {
 850         .name           = "atmel_usart",
 851         .id             = 6,
 852         .dev            = {
 853                                 .platform_data  = &uart5_data,
 854                                 .coherent_dma_mask = 0xffffffff,
 855         },
 856         .resource       = uart5_resources,
 857         .num_resources  = ARRAY_SIZE(uart5_resources),
 858 };
 859
 860 static inline void configure_usart5_pins(void)
 861 {
 862         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 863         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 864 }
 865
 866 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
 867 struct platform_device *atmel_default_console_device;   /* the serial console device */
 868
 869 void __init at91_init_serial(struct at91_uart_config *config)
 870 {
 871         int i;
 872
 873         /* Fill in list of supported UARTs */
 874         for (i = 0; i < config->nr_tty; i++) {
 875                 switch (config->tty_map[i]) {
 876                         case 0:
 877                                 configure_usart0_pins();
 878                                 at91_uarts[i] = &at91sam9260_uart0_device;
 879                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 880                                 break;
 881                         case 1:
 882                                 configure_usart1_pins();
 883                                 at91_uarts[i] = &at91sam9260_uart1_device;
 884                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 885                                 break;
 886                         case 2:
 887                                 configure_usart2_pins();
 888                                 at91_uarts[i] = &at91sam9260_uart2_device;
 889                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 890                                 break;
 891                         case 3:
 892                                 configure_usart3_pins();
 893                                 at91_uarts[i] = &at91sam9260_uart3_device;
 894                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 895                                 break;
 896                         case 4:
 897                                 configure_usart4_pins();
 898                                 at91_uarts[i] = &at91sam9260_uart4_device;
 899                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
 900                                 break;
 901                         case 5:
 902                                 configure_usart5_pins();
 903                                 at91_uarts[i] = &at91sam9260_uart5_device;
 904                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
 905                                 break;
 906                         case 6:
 907                                 configure_dbgu_pins();
 908                                 at91_uarts[i] = &at91sam9260_dbgu_device;
 909                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
 910                                 break;
 911                         default:
 912                                 continue;
 913                 }
 914                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
 915         }
 916
 917         /* Set serial console device */
 918         if (config->console_tty < ATMEL_MAX_UART)
 919                 atmel_default_console_device = at91_uarts[config->console_tty];
 920         if (!atmel_default_console_device)
 921                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 922 }
 923
 924 void __init at91_add_device_serial(void)
 925 {
 926         int i;
 927
 928         for (i = 0; i < ATMEL_MAX_UART; i++) {
 929                 if (at91_uarts[i])
 930                         platform_device_register(at91_uarts[i]);
 931         }
 932 }
 933 #else
 934 void __init at91_init_serial(struct at91_uart_config *config) {}
 935 void __init at91_add_device_serial(void) {}
 936 #endif
 937
 938
 939 /* -------------------------------------------------------------------- */
 940 /*
 941  * These devices are always present and don't need any board-specific
 942  * setup.
 943  */
 944 static int __init at91_add_standard_devices(void)
 945 {
 946         at91_add_device_rtt();
 947         at91_add_device_watchdog();
 948         return 0;
 949 }
 950
 951 arch_initcall(at91_add_standard_devices);