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  *  LEDs
 543  * -------------------------------------------------------------------- */
 544
 545 #if defined(CONFIG_LEDS)
 546 u8 at91_leds_cpu;
 547 u8 at91_leds_timer;
 548
 549 void __init at91_init_leds(u8 cpu_led, u8 timer_led)
 550 {
 551         /* Enable GPIO to access the LEDs */
 552         at91_set_gpio_output(cpu_led, 1);
 553         at91_set_gpio_output(timer_led, 1);
 554
 555         at91_leds_cpu   = cpu_led;
 556         at91_leds_timer = timer_led;
 557 }
 558 #else
 559 void __init at91_init_leds(u8 cpu_led, u8 timer_led) {}
 560 #endif
 561
 562
 563 /* --------------------------------------------------------------------
 564  *  UART
 565  * -------------------------------------------------------------------- */
 566 #if defined(CONFIG_SERIAL_ATMEL)
 567 static struct resource dbgu_resources[] = {
 568         [0] = {
 569                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 570                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 571                 .flags  = IORESOURCE_MEM,
 572         },
 573         [1] = {
 574                 .start  = AT91_ID_SYS,
 575                 .end    = AT91_ID_SYS,
 576                 .flags  = IORESOURCE_IRQ,
 577         },
 578 };
 579
 580 static struct atmel_uart_data dbgu_data = {
 581         .use_dma_tx     = 0,
 582         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 583         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 584 };
 585
 586 static struct platform_device at91sam9260_dbgu_device = {
 587         .name           = "atmel_usart",
 588         .id             = 0,
 589         .dev            = {
 590                                 .platform_data  = &dbgu_data,
 591                                 .coherent_dma_mask = 0xffffffff,
 592         },
 593         .resource       = dbgu_resources,
 594         .num_resources  = ARRAY_SIZE(dbgu_resources),
 595 };
 596
 597 static inline void configure_dbgu_pins(void)
 598 {
 599         at91_set_A_periph(AT91_PIN_PB14, 0);            /* DRXD */
 600         at91_set_A_periph(AT91_PIN_PB15, 1);            /* DTXD */
 601 }
 602
 603 static struct resource uart0_resources[] = {
 604         [0] = {
 605                 .start  = AT91SAM9260_BASE_US0,
 606                 .end    = AT91SAM9260_BASE_US0 + SZ_16K - 1,
 607                 .flags  = IORESOURCE_MEM,
 608         },
 609         [1] = {
 610                 .start  = AT91SAM9260_ID_US0,
 611                 .end    = AT91SAM9260_ID_US0,
 612                 .flags  = IORESOURCE_IRQ,
 613         },
 614 };
 615
 616 static struct atmel_uart_data uart0_data = {
 617         .use_dma_tx     = 1,
 618         .use_dma_rx     = 1,
 619 };
 620
 621 static struct platform_device at91sam9260_uart0_device = {
 622         .name           = "atmel_usart",
 623         .id             = 1,
 624         .dev            = {
 625                                 .platform_data  = &uart0_data,
 626                                 .coherent_dma_mask = 0xffffffff,
 627         },
 628         .resource       = uart0_resources,
 629         .num_resources  = ARRAY_SIZE(uart0_resources),
 630 };
 631
 632 static inline void configure_usart0_pins(void)
 633 {
 634         at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD0 */
 635         at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD0 */
 636         at91_set_A_periph(AT91_PIN_PB26, 0);            /* RTS0 */
 637         at91_set_A_periph(AT91_PIN_PB27, 0);            /* CTS0 */
 638         at91_set_A_periph(AT91_PIN_PB24, 0);            /* DTR0 */
 639         at91_set_A_periph(AT91_PIN_PB22, 0);            /* DSR0 */
 640         at91_set_A_periph(AT91_PIN_PB23, 0);            /* DCD0 */
 641         at91_set_A_periph(AT91_PIN_PB25, 0);            /* RI0 */
 642 }
 643
 644 static struct resource uart1_resources[] = {
 645         [0] = {
 646                 .start  = AT91SAM9260_BASE_US1,
 647                 .end    = AT91SAM9260_BASE_US1 + SZ_16K - 1,
 648                 .flags  = IORESOURCE_MEM,
 649         },
 650         [1] = {
 651                 .start  = AT91SAM9260_ID_US1,
 652                 .end    = AT91SAM9260_ID_US1,
 653                 .flags  = IORESOURCE_IRQ,
 654         },
 655 };
 656
 657 static struct atmel_uart_data uart1_data = {
 658         .use_dma_tx     = 1,
 659         .use_dma_rx     = 1,
 660 };
 661
 662 static struct platform_device at91sam9260_uart1_device = {
 663         .name           = "atmel_usart",
 664         .id             = 2,
 665         .dev            = {
 666                                 .platform_data  = &uart1_data,
 667                                 .coherent_dma_mask = 0xffffffff,
 668         },
 669         .resource       = uart1_resources,
 670         .num_resources  = ARRAY_SIZE(uart1_resources),
 671 };
 672
 673 static inline void configure_usart1_pins(void)
 674 {
 675         at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD1 */
 676         at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD1 */
 677         at91_set_A_periph(AT91_PIN_PB28, 0);            /* RTS1 */
 678         at91_set_A_periph(AT91_PIN_PB29, 0);            /* CTS1 */
 679 }
 680
 681 static struct resource uart2_resources[] = {
 682         [0] = {
 683                 .start  = AT91SAM9260_BASE_US2,
 684                 .end    = AT91SAM9260_BASE_US2 + SZ_16K - 1,
 685                 .flags  = IORESOURCE_MEM,
 686         },
 687         [1] = {
 688                 .start  = AT91SAM9260_ID_US2,
 689                 .end    = AT91SAM9260_ID_US2,
 690                 .flags  = IORESOURCE_IRQ,
 691         },
 692 };
 693
 694 static struct atmel_uart_data uart2_data = {
 695         .use_dma_tx     = 1,
 696         .use_dma_rx     = 1,
 697 };
 698
 699 static struct platform_device at91sam9260_uart2_device = {
 700         .name           = "atmel_usart",
 701         .id             = 3,
 702         .dev            = {
 703                                 .platform_data  = &uart2_data,
 704                                 .coherent_dma_mask = 0xffffffff,
 705         },
 706         .resource       = uart2_resources,
 707         .num_resources  = ARRAY_SIZE(uart2_resources),
 708 };
 709
 710 static inline void configure_usart2_pins(void)
 711 {
 712         at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD2 */
 713         at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD2 */
 714 }
 715
 716 static struct resource uart3_resources[] = {
 717         [0] = {
 718                 .start  = AT91SAM9260_BASE_US3,
 719                 .end    = AT91SAM9260_BASE_US3 + SZ_16K - 1,
 720                 .flags  = IORESOURCE_MEM,
 721         },
 722         [1] = {
 723                 .start  = AT91SAM9260_ID_US3,
 724                 .end    = AT91SAM9260_ID_US3,
 725                 .flags  = IORESOURCE_IRQ,
 726         },
 727 };
 728
 729 static struct atmel_uart_data uart3_data = {
 730         .use_dma_tx     = 1,
 731         .use_dma_rx     = 1,
 732 };
 733
 734 static struct platform_device at91sam9260_uart3_device = {
 735         .name           = "atmel_usart",
 736         .id             = 4,
 737         .dev            = {
 738                                 .platform_data  = &uart3_data,
 739                                 .coherent_dma_mask = 0xffffffff,
 740         },
 741         .resource       = uart3_resources,
 742         .num_resources  = ARRAY_SIZE(uart3_resources),
 743 };
 744
 745 static inline void configure_usart3_pins(void)
 746 {
 747         at91_set_A_periph(AT91_PIN_PB10, 1);            /* TXD3 */
 748         at91_set_A_periph(AT91_PIN_PB11, 0);            /* RXD3 */
 749 }
 750
 751 static struct resource uart4_resources[] = {
 752         [0] = {
 753                 .start  = AT91SAM9260_BASE_US4,
 754                 .end    = AT91SAM9260_BASE_US4 + SZ_16K - 1,
 755                 .flags  = IORESOURCE_MEM,
 756         },
 757         [1] = {
 758                 .start  = AT91SAM9260_ID_US4,
 759                 .end    = AT91SAM9260_ID_US4,
 760                 .flags  = IORESOURCE_IRQ,
 761         },
 762 };
 763
 764 static struct atmel_uart_data uart4_data = {
 765         .use_dma_tx     = 1,
 766         .use_dma_rx     = 1,
 767 };
 768
 769 static struct platform_device at91sam9260_uart4_device = {
 770         .name           = "atmel_usart",
 771         .id             = 5,
 772         .dev            = {
 773                                 .platform_data  = &uart4_data,
 774                                 .coherent_dma_mask = 0xffffffff,
 775         },
 776         .resource       = uart4_resources,
 777         .num_resources  = ARRAY_SIZE(uart4_resources),
 778 };
 779
 780 static inline void configure_usart4_pins(void)
 781 {
 782         at91_set_B_periph(AT91_PIN_PA31, 1);            /* TXD4 */
 783         at91_set_B_periph(AT91_PIN_PA30, 0);            /* RXD4 */
 784 }
 785
 786 static struct resource uart5_resources[] = {
 787         [0] = {
 788                 .start  = AT91SAM9260_BASE_US5,
 789                 .end    = AT91SAM9260_BASE_US5 + SZ_16K - 1,
 790                 .flags  = IORESOURCE_MEM,
 791         },
 792         [1] = {
 793                 .start  = AT91SAM9260_ID_US5,
 794                 .end    = AT91SAM9260_ID_US5,
 795                 .flags  = IORESOURCE_IRQ,
 796         },
 797 };
 798
 799 static struct atmel_uart_data uart5_data = {
 800         .use_dma_tx     = 1,
 801         .use_dma_rx     = 1,
 802 };
 803
 804 static struct platform_device at91sam9260_uart5_device = {
 805         .name           = "atmel_usart",
 806         .id             = 6,
 807         .dev            = {
 808                                 .platform_data  = &uart5_data,
 809                                 .coherent_dma_mask = 0xffffffff,
 810         },
 811         .resource       = uart5_resources,
 812         .num_resources  = ARRAY_SIZE(uart5_resources),
 813 };
 814
 815 static inline void configure_usart5_pins(void)
 816 {
 817         at91_set_A_periph(AT91_PIN_PB12, 1);            /* TXD5 */
 818         at91_set_A_periph(AT91_PIN_PB13, 0);            /* RXD5 */
 819 }
 820
 821 struct platform_device *at91_uarts[ATMEL_MAX_UART];     /* the UARTs to use */
 822 struct platform_device *atmel_default_console_device;   /* the serial console device */
 823
 824 void __init at91_init_serial(struct at91_uart_config *config)
 825 {
 826         int i;
 827
 828         /* Fill in list of supported UARTs */
 829         for (i = 0; i < config->nr_tty; i++) {
 830                 switch (config->tty_map[i]) {
 831                         case 0:
 832                                 configure_usart0_pins();
 833                                 at91_uarts[i] = &at91sam9260_uart0_device;
 834                                 at91_clock_associate("usart0_clk", &at91sam9260_uart0_device.dev, "usart");
 835                                 break;
 836                         case 1:
 837                                 configure_usart1_pins();
 838                                 at91_uarts[i] = &at91sam9260_uart1_device;
 839                                 at91_clock_associate("usart1_clk", &at91sam9260_uart1_device.dev, "usart");
 840                                 break;
 841                         case 2:
 842                                 configure_usart2_pins();
 843                                 at91_uarts[i] = &at91sam9260_uart2_device;
 844                                 at91_clock_associate("usart2_clk", &at91sam9260_uart2_device.dev, "usart");
 845                                 break;
 846                         case 3:
 847                                 configure_usart3_pins();
 848                                 at91_uarts[i] = &at91sam9260_uart3_device;
 849                                 at91_clock_associate("usart3_clk", &at91sam9260_uart3_device.dev, "usart");
 850                                 break;
 851                         case 4:
 852                                 configure_usart4_pins();
 853                                 at91_uarts[i] = &at91sam9260_uart4_device;
 854                                 at91_clock_associate("usart4_clk", &at91sam9260_uart4_device.dev, "usart");
 855                                 break;
 856                         case 5:
 857                                 configure_usart5_pins();
 858                                 at91_uarts[i] = &at91sam9260_uart5_device;
 859                                 at91_clock_associate("usart5_clk", &at91sam9260_uart5_device.dev, "usart");
 860                                 break;
 861                         case 6:
 862                                 configure_dbgu_pins();
 863                                 at91_uarts[i] = &at91sam9260_dbgu_device;
 864                                 at91_clock_associate("mck", &at91sam9260_dbgu_device.dev, "usart");
 865                                 break;
 866                         default:
 867                                 continue;
 868                 }
 869                 at91_uarts[i]->id = i;          /* update ID number to mapped ID */
 870         }
 871
 872         /* Set serial console device */
 873         if (config->console_tty < ATMEL_MAX_UART)
 874                 atmel_default_console_device = at91_uarts[config->console_tty];
 875         if (!atmel_default_console_device)
 876                 printk(KERN_INFO "AT91: No default serial console defined.\n");
 877 }
 878
 879 void __init at91_add_device_serial(void)
 880 {
 881         int i;
 882
 883         for (i = 0; i < ATMEL_MAX_UART; i++) {
 884                 if (at91_uarts[i])
 885                         platform_device_register(at91_uarts[i]);
 886         }
 887 }
 888 #else
 889 void __init at91_init_serial(struct at91_uart_config *config) {}
 890 void __init at91_add_device_serial(void) {}
 891 #endif
 892
 893
 894 /* -------------------------------------------------------------------- */
 895 /*
 896  * These devices are always present and don't need any board-specific
 897  * setup.
 898  */
 899 static int __init at91_add_standard_devices(void)
 900 {
 901         return 0;
 902 }
 903
 904 arch_initcall(at91_add_standard_devices);