arch/arm/mach-at91/at91sam9261_devices.c

   1 /*
   2  * arch/arm/mach-at91/at91sam9261_devices.c
   3  *
   4  *  Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
   5  *  Copyright (C) 2005 David Brownell
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  */
  13 #include <asm/mach/arch.h>
  14 #include <asm/mach/map.h>
  15
  16 #include <linux/dma-mapping.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/i2c-gpio.h>
  19
  20 #include <linux/fb.h>
  21 #include <video/atmel_lcdc.h>
  22
  23 #include <mach/board.h>
  24 #include <mach/gpio.h>
  25 #include <mach/at91sam9261.h>
  26 #include <mach/at91sam9261_matrix.h>
  27 #include <mach/at91sam9_smc.h>
  28
  29 #include "generic.h"
  30
  31
  32 /* --------------------------------------------------------------------
  33  *  USB Host
  34  * -------------------------------------------------------------------- */
  35
  36 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  37 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  38 static struct at91_usbh_data usbh_data;
  39
  40 static struct resource usbh_resources[] = {
  41         [0] = {
  42                 .start  = AT91SAM9261_UHP_BASE,
  43                 .end    = AT91SAM9261_UHP_BASE + SZ_1M - 1,
  44                 .flags  = IORESOURCE_MEM,
  45         },
  46         [1] = {
  47                 .start  = AT91SAM9261_ID_UHP,
  48                 .end    = AT91SAM9261_ID_UHP,
  49                 .flags  = IORESOURCE_IRQ,
  50         },
  51 };
  52
  53 static struct platform_device at91sam9261_usbh_device = {
  54         .name           = "at91_ohci",
  55         .id             = -1,
  56         .dev            = {
  57                                 .dma_mask               = &ohci_dmamask,
  58                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  59                                 .platform_data          = &usbh_data,
  60         },
  61         .resource       = usbh_resources,
  62         .num_resources  = ARRAY_SIZE(usbh_resources),
  63 };
  64
  65 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  66 {
  67         if (!data)
  68                 return;
  69
  70         usbh_data = *data;
  71         platform_device_register(&at91sam9261_usbh_device);
  72 }
  73 #else
  74 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  75 #endif
  76
  77
  78 /* --------------------------------------------------------------------
  79  *  USB Device (Gadget)
  80  * -------------------------------------------------------------------- */
  81
  82 #ifdef CONFIG_USB_GADGET_AT91
  83 static struct at91_udc_data udc_data;
  84
  85 static struct resource udc_resources[] = {
  86         [0] = {
  87                 .start  = AT91SAM9261_BASE_UDP,
  88                 .end    = AT91SAM9261_BASE_UDP + SZ_16K - 1,
  89                 .flags  = IORESOURCE_MEM,
  90         },
  91         [1] = {
  92                 .start  = AT91SAM9261_ID_UDP,
  93                 .end    = AT91SAM9261_ID_UDP,
  94                 .flags  = IORESOURCE_IRQ,
  95         },
  96 };
  97
  98 static struct platform_device at91sam9261_udc_device = {
  99         .name           = "at91_udc",
 100         .id             = -1,
 101         .dev            = {
 102                                 .platform_data          = &udc_data,
 103         },
 104         .resource       = udc_resources,
 105         .num_resources  = ARRAY_SIZE(udc_resources),
 106 };
 107
 108 void __init at91_add_device_udc(struct at91_udc_data *data)
 109 {
 110         if (!data)
 111                 return;
 112
 113         if (data->vbus_pin) {
 114                 at91_set_gpio_input(data->vbus_pin, 0);
 115                 at91_set_deglitch(data->vbus_pin, 1);
 116         }
 117
 118         /* Pullup pin is handled internally by USB device peripheral */
 119
 120         udc_data = *data;
 121         platform_device_register(&at91sam9261_udc_device);
 122 }
 123 #else
 124 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 125 #endif
 126
 127 /* --------------------------------------------------------------------
 128  *  MMC / SD
 129  * -------------------------------------------------------------------- */
 130
 131 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 132 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 133 static struct at91_mmc_data mmc_data;
 134
 135 static struct resource mmc_resources[] = {
 136         [0] = {
 137                 .start  = AT91SAM9261_BASE_MCI,
 138                 .end    = AT91SAM9261_BASE_MCI + SZ_16K - 1,
 139                 .flags  = IORESOURCE_MEM,
 140         },
 141         [1] = {
 142                 .start  = AT91SAM9261_ID_MCI,
 143                 .end    = AT91SAM9261_ID_MCI,
 144                 .flags  = IORESOURCE_IRQ,
 145         },
 146 };
 147
 148 static struct platform_device at91sam9261_mmc_device = {
 149         .name           = "at91_mci",
 150         .id             = -1,
 151         .dev            = {
 152                                 .dma_mask               = &mmc_dmamask,
 153                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 154                                 .platform_data          = &mmc_data,
 155         },
 156         .resource       = mmc_resources,
 157         .num_resources  = ARRAY_SIZE(mmc_resources),
 158 };
 159
 160 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 161 {
 162         if (!data)
 163                 return;
 164
 165         /* input/irq */
 166         if (data->det_pin) {
 167                 at91_set_gpio_input(data->det_pin, 1);
 168                 at91_set_deglitch(data->det_pin, 1);
 169         }
 170         if (data->wp_pin)
 171                 at91_set_gpio_input(data->wp_pin, 1);
 172         if (data->vcc_pin)
 173                 at91_set_gpio_output(data->vcc_pin, 0);
 174
 175         /* CLK */
 176         at91_set_B_periph(AT91_PIN_PA2, 0);
 177
 178         /* CMD */
 179         at91_set_B_periph(AT91_PIN_PA1, 1);
 180
 181         /* DAT0, maybe DAT1..DAT3 */
 182         at91_set_B_periph(AT91_PIN_PA0, 1);
 183         if (data->wire4) {
 184                 at91_set_B_periph(AT91_PIN_PA4, 1);
 185                 at91_set_B_periph(AT91_PIN_PA5, 1);
 186                 at91_set_B_periph(AT91_PIN_PA6, 1);
 187         }
 188
 189         mmc_data = *data;
 190         platform_device_register(&at91sam9261_mmc_device);
 191 }
 192 #else
 193 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 194 #endif
 195
 196
 197 /* --------------------------------------------------------------------
 198  *  NAND / SmartMedia
 199  * -------------------------------------------------------------------- */
 200
 201 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 202 static struct atmel_nand_data nand_data;
 203
 204 #define NAND_BASE       AT91_CHIPSELECT_3
 205
 206 static struct resource nand_resources[] = {
 207         {
 208                 .start  = NAND_BASE,
 209                 .end    = NAND_BASE + SZ_256M - 1,
 210                 .flags  = IORESOURCE_MEM,
 211         }
 212 };
 213
 214 static struct platform_device atmel_nand_device = {
 215         .name           = "atmel_nand",
 216         .id             = -1,
 217         .dev            = {
 218                                 .platform_data  = &nand_data,
 219         },
 220         .resource       = nand_resources,
 221         .num_resources  = ARRAY_SIZE(nand_resources),
 222 };
 223
 224 void __init at91_add_device_nand(struct atmel_nand_data *data)
 225 {
 226         unsigned long csa;
 227
 228         if (!data)
 229                 return;
 230
 231         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 232         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 233
 234         /* enable pin */
 235         if (data->enable_pin)
 236                 at91_set_gpio_output(data->enable_pin, 1);
 237
 238         /* ready/busy pin */
 239         if (data->rdy_pin)
 240                 at91_set_gpio_input(data->rdy_pin, 1);
 241
 242         /* card detect pin */
 243         if (data->det_pin)
 244                 at91_set_gpio_input(data->det_pin, 1);
 245
 246         at91_set_A_periph(AT91_PIN_PC0, 0);             /* NANDOE */
 247         at91_set_A_periph(AT91_PIN_PC1, 0);             /* NANDWE */
 248
 249         nand_data = *data;
 250         platform_device_register(&atmel_nand_device);
 251 }
 252
 253 #else
 254 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 255 #endif
 256
 257
 258 /* --------------------------------------------------------------------
 259  *  TWI (i2c)
 260  * -------------------------------------------------------------------- */
 261
 262 /*
 263  * Prefer the GPIO code since the TWI controller isn't robust
 264  * (gets overruns and underruns under load) and can only issue
 265  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 266  */
 267 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 268
 269 static struct i2c_gpio_platform_data pdata = {
 270         .sda_pin                = AT91_PIN_PA7,
 271         .sda_is_open_drain      = 1,
 272         .scl_pin                = AT91_PIN_PA8,
 273         .scl_is_open_drain      = 1,
 274         .udelay                 = 2,            /* ~100 kHz */
 275 };
 276
 277 static struct platform_device at91sam9261_twi_device = {
 278         .name                   = "i2c-gpio",
 279         .id                     = -1,
 280         .dev.platform_data      = &pdata,
 281 };
 282
 283 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 284 {
 285         at91_set_GPIO_periph(AT91_PIN_PA7, 1);          /* TWD (SDA) */
 286         at91_set_multi_drive(AT91_PIN_PA7, 1);
 287
 288         at91_set_GPIO_periph(AT91_PIN_PA8, 1);          /* TWCK (SCL) */
 289         at91_set_multi_drive(AT91_PIN_PA8, 1);
 290
 291         i2c_register_board_info(0, devices, nr_devices);
 292         platform_device_register(&at91sam9261_twi_device);
 293 }
 294
 295 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 296
 297 static struct resource twi_resources[] = {
 298         [0] = {
 299                 .start  = AT91SAM9261_BASE_TWI,
 300                 .end    = AT91SAM9261_BASE_TWI + SZ_16K - 1,
 301                 .flags  = IORESOURCE_MEM,
 302         },
 303         [1] = {
 304                 .start  = AT91SAM9261_ID_TWI,
 305                 .end    = AT91SAM9261_ID_TWI,
 306                 .flags  = IORESOURCE_IRQ,
 307         },
 308 };
 309
 310 static struct platform_device at91sam9261_twi_device = {
 311         .name           = "at91_i2c",
 312         .id             = -1,
 313         .resource       = twi_resources,
 314         .num_resources  = ARRAY_SIZE(twi_resources),
 315 };
 316
 317 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 318 {
 319         /* pins used for TWI interface */
 320         at91_set_A_periph(AT91_PIN_PA7, 0);             /* TWD */
 321         at91_set_multi_drive(AT91_PIN_PA7, 1);
 322
 323         at91_set_A_periph(AT91_PIN_PA8, 0);             /* TWCK */
 324         at91_set_multi_drive(AT91_PIN_PA8, 1);
 325
 326         i2c_register_board_info(0, devices, nr_devices);
 327         platform_device_register(&at91sam9261_twi_device);
 328 }
 329 #else
 330 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 331 #endif
 332
 333
 334 /* --------------------------------------------------------------------
 335  *  SPI
 336  * -------------------------------------------------------------------- */
 337
 338 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 339 static u64 spi_dmamask = DMA_BIT_MASK(32);
 340
 341 static struct resource spi0_resources[] = {
 342         [0] = {
 343                 .start  = AT91SAM9261_BASE_SPI0,
 344                 .end    = AT91SAM9261_BASE_SPI0 + SZ_16K - 1,
 345                 .flags  = IORESOURCE_MEM,
 346         },
 347         [1] = {
 348                 .start  = AT91SAM9261_ID_SPI0,
 349                 .end    = AT91SAM9261_ID_SPI0,
 350                 .flags  = IORESOURCE_IRQ,
 351         },
 352 };
 353
 354 static struct platform_device at91sam9261_spi0_device = {
 355         .name           = "atmel_spi",
 356         .id             = 0,
 357         .dev            = {
 358                                 .dma_mask               = &spi_dmamask,
 359                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 360         },
 361         .resource       = spi0_resources,
 362         .num_resources  = ARRAY_SIZE(spi0_resources),
 363 };
 364
 365 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 };
 366
 367 static struct resource spi1_resources[] = {
 368         [0] = {
 369                 .start  = AT91SAM9261_BASE_SPI1,
 370                 .end    = AT91SAM9261_BASE_SPI1 + SZ_16K - 1,
 371                 .flags  = IORESOURCE_MEM,
 372         },
 373         [1] = {
 374                 .start  = AT91SAM9261_ID_SPI1,
 375                 .end    = AT91SAM9261_ID_SPI1,
 376                 .flags  = IORESOURCE_IRQ,
 377         },
 378 };
 379
 380 static struct platform_device at91sam9261_spi1_device = {
 381         .name           = "atmel_spi",
 382         .id             = 1,
 383         .dev            = {
 384                                 .dma_mask               = &spi_dmamask,
 385                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 386         },
 387         .resource       = spi1_resources,
 388         .num_resources  = ARRAY_SIZE(spi1_resources),
 389 };
 390
 391 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB28, AT91_PIN_PA24, AT91_PIN_PA25, AT91_PIN_PA26 };
 392
 393 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 394 {
 395         int i;
 396         unsigned long cs_pin;
 397         short enable_spi0 = 0;
 398         short enable_spi1 = 0;
 399
 400         /* Choose SPI chip-selects */
 401         for (i = 0; i < nr_devices; i++) {
 402                 if (devices[i].controller_data)
 403                         cs_pin = (unsigned long) devices[i].controller_data;
 404                 else if (devices[i].bus_num == 0)
 405                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 406                 else
 407                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 408
 409                 if (devices[i].bus_num == 0)
 410                         enable_spi0 = 1;
 411                 else
 412                         enable_spi1 = 1;
 413
 414                 /* enable chip-select pin */
 415                 at91_set_gpio_output(cs_pin, 1);
 416
 417                 /* pass chip-select pin to driver */
 418                 devices[i].controller_data = (void *) cs_pin;
 419         }
 420
 421         spi_register_board_info(devices, nr_devices);
 422
 423         /* Configure SPI bus(es) */
 424         if (enable_spi0) {
 425                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 426                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 427                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI0_SPCK */
 428
 429                 at91_clock_associate("spi0_clk", &at91sam9261_spi0_device.dev, "spi_clk");
 430                 platform_device_register(&at91sam9261_spi0_device);
 431         }
 432         if (enable_spi1) {
 433                 at91_set_A_periph(AT91_PIN_PB30, 0);    /* SPI1_MISO */
 434                 at91_set_A_periph(AT91_PIN_PB31, 0);    /* SPI1_MOSI */
 435                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* SPI1_SPCK */
 436
 437                 at91_clock_associate("spi1_clk", &at91sam9261_spi1_device.dev, "spi_clk");
 438                 platform_device_register(&at91sam9261_spi1_device);
 439         }
 440 }
 441 #else
 442 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 443 #endif
 444
 445
 446 /* --------------------------------------------------------------------
 447  *  LCD Controller
 448  * -------------------------------------------------------------------- */
 449
 450 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 451 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 452 static struct atmel_lcdfb_info lcdc_data;
 453
 454 static struct resource lcdc_resources[] = {
 455         [0] = {
 456                 .start  = AT91SAM9261_LCDC_BASE,
 457                 .end    = AT91SAM9261_LCDC_BASE + SZ_4K - 1,
 458                 .flags  = IORESOURCE_MEM,
 459         },
 460         [1] = {
 461                 .start  = AT91SAM9261_ID_LCDC,
 462                 .end    = AT91SAM9261_ID_LCDC,
 463                 .flags  = IORESOURCE_IRQ,
 464         },
 465 #if defined(CONFIG_FB_INTSRAM)
 466         [2] = {
 467                 .start  = AT91SAM9261_SRAM_BASE,
 468                 .end    = AT91SAM9261_SRAM_BASE + AT91SAM9261_SRAM_SIZE - 1,
 469                 .flags  = IORESOURCE_MEM,
 470         },
 471 #endif
 472 };
 473
 474 static struct platform_device at91_lcdc_device = {
 475         .name           = "atmel_lcdfb",
 476         .id             = 0,
 477         .dev            = {
 478                                 .dma_mask               = &lcdc_dmamask,
 479                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 480                                 .platform_data          = &lcdc_data,
 481         },
 482         .resource       = lcdc_resources,
 483         .num_resources  = ARRAY_SIZE(lcdc_resources),
 484 };
 485
 486 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 487 {
 488         if (!data) {
 489                 return;
 490         }
 491
 492 #if defined(CONFIG_FB_ATMEL_STN)
 493         at91_set_A_periph(AT91_PIN_PB0, 0);     /* LCDVSYNC */
 494         at91_set_A_periph(AT91_PIN_PB1, 0);     /* LCDHSYNC */
 495         at91_set_A_periph(AT91_PIN_PB2, 0);     /* LCDDOTCK */
 496         at91_set_A_periph(AT91_PIN_PB3, 0);     /* LCDDEN */
 497         at91_set_A_periph(AT91_PIN_PB4, 0);     /* LCDCC */
 498         at91_set_A_periph(AT91_PIN_PB5, 0);     /* LCDD0 */
 499         at91_set_A_periph(AT91_PIN_PB6, 0);     /* LCDD1 */
 500         at91_set_A_periph(AT91_PIN_PB7, 0);     /* LCDD2 */
 501         at91_set_A_periph(AT91_PIN_PB8, 0);     /* LCDD3 */
 502 #else
 503         at91_set_A_periph(AT91_PIN_PB1, 0);     /* LCDHSYNC */
 504         at91_set_A_periph(AT91_PIN_PB2, 0);     /* LCDDOTCK */
 505         at91_set_A_periph(AT91_PIN_PB3, 0);     /* LCDDEN */
 506         at91_set_A_periph(AT91_PIN_PB4, 0);     /* LCDCC */
 507         at91_set_A_periph(AT91_PIN_PB7, 0);     /* LCDD2 */
 508         at91_set_A_periph(AT91_PIN_PB8, 0);     /* LCDD3 */
 509         at91_set_A_periph(AT91_PIN_PB9, 0);     /* LCDD4 */
 510         at91_set_A_periph(AT91_PIN_PB10, 0);    /* LCDD5 */
 511         at91_set_A_periph(AT91_PIN_PB11, 0);    /* LCDD6 */
 512         at91_set_A_periph(AT91_PIN_PB12, 0);    /* LCDD7 */
 513         at91_set_A_periph(AT91_PIN_PB15, 0);    /* LCDD10 */
 514         at91_set_A_periph(AT91_PIN_PB16, 0);    /* LCDD11 */
 515         at91_set_A_periph(AT91_PIN_PB17, 0);    /* LCDD12 */
 516         at91_set_A_periph(AT91_PIN_PB18, 0);    /* LCDD13 */
 517         at91_set_A_periph(AT91_PIN_PB19, 0);    /* LCDD14 */
 518         at91_set_A_periph(AT91_PIN_PB20, 0);    /* LCDD15 */
 519         at91_set_B_periph(AT91_PIN_PB23, 0);    /* LCDD18 */
 520         at91_set_B_periph(AT91_PIN_PB24, 0);    /* LCDD19 */
 521         at91_set_B_periph(AT91_PIN_PB25, 0);    /* LCDD20 */
 522         at91_set_B_periph(AT91_PIN_PB26, 0);    /* LCDD21 */
 523         at91_set_B_periph(AT91_PIN_PB27, 0);    /* LCDD22 */
 524         at91_set_B_periph(AT91_PIN_PB28, 0);    /* LCDD23 */
 525 #endif
 526
 527         if (ARRAY_SIZE(lcdc_resources) > 2) {
 528                 void __iomem *fb;
 529                 struct resource *fb_res = &lcdc_resources[2];
 530                 size_t fb_len = fb_res->end - fb_res->start + 1;
 531
 532                 fb = ioremap(fb_res->start, fb_len);
 533                 if (fb) {
 534                         memset(fb, 0, fb_len);
 535                         iounmap(fb);
 536                 }
 537         }
 538         lcdc_data = *data;
 539         platform_device_register(&at91_lcdc_device);
 540 }
 541 #else
 542 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 543 #endif
 544
 545
 546 /* --------------------------------------------------------------------
 547  *  Timer/Counter block
 548  * -------------------------------------------------------------------- */
 549
 550 #ifdef CONFIG_ATMEL_TCLIB
 551
 552 static struct resource tcb_resources[] = {
 553         [0] = {
 554                 .start  = AT91SAM9261_BASE_TCB0,
 555                 .end    = AT91SAM9261_BASE_TCB0 + SZ_16K - 1,
 556                 .flags  = IORESOURCE_MEM,
 557         },
 558         [1] = {
 559                 .start  = AT91SAM9261_ID_TC0,
 560                 .end    = AT91SAM9261_ID_TC0,
 561                 .flags  = IORESOURCE_IRQ,
 562         },
 563         [2] = {
 564                 .start  = AT91SAM9261_ID_TC1,
 565                 .end    = AT91SAM9261_ID_TC1,
 566                 .flags  = IORESOURCE_IRQ,
 567         },
 568         [3] = {
 569                 .start  = AT91SAM9261_ID_TC2,
 570                 .end    = AT91SAM9261_ID_TC2,
 571                 .flags  = IORESOURCE_IRQ,
 572         },
 573 };
 574
 575 static struct platform_device at91sam9261_tcb_device = {
 576         .name           = "atmel_tcb",
 577         .id             = 0,
 578         .resource       = tcb_resources,
 579         .num_resources  = ARRAY_SIZE(tcb_resources),
 580 };
 581
 582 static void __init at91_add_device_tc(void)
 583 {
 584         /* this chip has a separate clock and irq for each TC channel */
 585         at91_clock_associate("tc0_clk", &at91sam9261_tcb_device.dev, "t0_clk");
 586         at91_clock_associate("tc1_clk", &at91sam9261_tcb_device.dev, "t1_clk");
 587         at91_clock_associate("tc2_clk", &at91sam9261_tcb_device.dev, "t2_clk");
 588         platform_device_register(&at91sam9261_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 at91sam9261_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(&at91sam9261_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 at91sam9261_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(&at91sam9261_wdt_device);
 634 }
 635 #else
 636 static void __init at91_add_device_watchdog(void) {}
 637 #endif
 638
 639
 640 /* --------------------------------------------------------------------
 641  *  SSC -- Synchronous Serial Controller
 642  * -------------------------------------------------------------------- */
 643
 644 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 645 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
 646
 647 static struct resource ssc0_resources[] = {
 648         [0] = {
 649                 .start  = AT91SAM9261_BASE_SSC0,
 650                 .end    = AT91SAM9261_BASE_SSC0 + SZ_16K - 1,
 651                 .flags  = IORESOURCE_MEM,
 652         },
 653         [1] = {
 654                 .start  = AT91SAM9261_ID_SSC0,
 655                 .end    = AT91SAM9261_ID_SSC0,
 656                 .flags  = IORESOURCE_IRQ,
 657         },
 658 };
 659
 660 static struct platform_device at91sam9261_ssc0_device = {
 661         .name   = "ssc",
 662         .id     = 0,
 663         .dev    = {
 664                 .dma_mask               = &ssc0_dmamask,
 665                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 666         },
 667         .resource       = ssc0_resources,
 668         .num_resources  = ARRAY_SIZE(ssc0_resources),
 669 };
 670
 671 static inline void configure_ssc0_pins(unsigned pins)
 672 {
 673         if (pins & ATMEL_SSC_TF)
 674                 at91_set_A_periph(AT91_PIN_PB21, 1);
 675         if (pins & ATMEL_SSC_TK)
 676                 at91_set_A_periph(AT91_PIN_PB22, 1);
 677         if (pins & ATMEL_SSC_TD)
 678                 at91_set_A_periph(AT91_PIN_PB23, 1);
 679         if (pins & ATMEL_SSC_RD)
 680                 at91_set_A_periph(AT91_PIN_PB24, 1);
 681         if (pins & ATMEL_SSC_RK)
 682                 at91_set_A_periph(AT91_PIN_PB25, 1);
 683         if (pins & ATMEL_SSC_RF)
 684                 at91_set_A_periph(AT91_PIN_PB26, 1);
 685 }
 686
 687 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
 688
 689 static struct resource ssc1_resources[] = {
 690         [0] = {
 691                 .start  = AT91SAM9261_BASE_SSC1,
 692                 .end    = AT91SAM9261_BASE_SSC1 + SZ_16K - 1,
 693                 .flags  = IORESOURCE_MEM,
 694         },
 695         [1] = {
 696                 .start  = AT91SAM9261_ID_SSC1,
 697                 .end    = AT91SAM9261_ID_SSC1,
 698                 .flags  = IORESOURCE_IRQ,
 699         },
 700 };
 701
 702 static struct platform_device at91sam9261_ssc1_device = {
 703         .name   = "ssc",
 704         .id     = 1,
 705         .dev    = {
 706                 .dma_mask               = &ssc1_dmamask,
 707                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 708         },
 709         .resource       = ssc1_resources,
 710         .num_resources  = ARRAY_SIZE(ssc1_resources),
 711 };
 712
 713 static inline void configure_ssc1_pins(unsigned pins)
 714 {
 715         if (pins & ATMEL_SSC_TF)
 716                 at91_set_B_periph(AT91_PIN_PA17, 1);
 717         if (pins & ATMEL_SSC_TK)
 718                 at91_set_B_periph(AT91_PIN_PA18, 1);
 719         if (pins & ATMEL_SSC_TD)
 720                 at91_set_B_periph(AT91_PIN_PA19, 1);
 721         if (pins & ATMEL_SSC_RD)
 722                 at91_set_B_periph(AT91_PIN_PA20, 1);
 723         if (pins & ATMEL_SSC_RK)
 724                 at91_set_B_periph(AT91_PIN_PA21, 1);
 725         if (pins & ATMEL_SSC_RF)
 726                 at91_set_B_periph(AT91_PIN_PA22, 1);
 727 }
 728
 729 static u64 ssc2_dmamask = DMA_BIT_MASK(32);
 730
 731 static struct resource ssc2_resources[] = {
 732         [0] = {
 733                 .start  = AT91SAM9261_BASE_SSC2,
 734                 .end    = AT91SAM9261_BASE_SSC2 + SZ_16K - 1,
 735                 .flags  = IORESOURCE_MEM,
 736         },
 737         [1] = {
 738                 .start  = AT91SAM9261_ID_SSC2,
 739                 .end    = AT91SAM9261_ID_SSC2,
 740                 .flags  = IORESOURCE_IRQ,
 741         },
 742 };
 743
 744 static struct platform_device at91sam9261_ssc2_device = {
 745         .name   = "ssc",
 746         .id     = 2,
 747         .dev    = {
 748                 .dma_mask               = &ssc2_dmamask,
 749                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 750         },
 751         .resource       = ssc2_resources,
 752         .num_resources  = ARRAY_SIZE(ssc2_resources),
 753 };
 754
 755 static inline void configure_ssc2_pins(unsigned pins)
 756 {
 757         if (pins & ATMEL_SSC_TF)
 758                 at91_set_B_periph(AT91_PIN_PC25, 1);
 759         if (pins & ATMEL_SSC_TK)
 760                 at91_set_B_periph(AT91_PIN_PC26, 1);
 761         if (pins & ATMEL_SSC_TD)
 762                 at91_set_B_periph(AT91_PIN_PC27, 1);
 763         if (pins & ATMEL_SSC_RD)
 764                 at91_set_B_periph(AT91_PIN_PC28, 1);
 765         if (pins & ATMEL_SSC_RK)
 766                 at91_set_B_periph(AT91_PIN_PC29, 1);
 767         if (pins & ATMEL_SSC_RF)
 768                 at91_set_B_periph(AT91_PIN_PC30, 1);
 769 }
 770
 771 /*
 772  * SSC controllers are accessed through library code, instead of any
 773  * kind of all-singing/all-dancing driver.  For example one could be
 774  * used by a particular I2S audio codec's driver, while another one
 775  * on the same system might be used by a custom data capture driver.
 776  */
 777 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 778 {
 779         struct platform_device *pdev;
 780
 781         /*
 782          * NOTE: caller is responsible for passing information matching
 783          * "pins" to whatever will be using each particular controller.
 784          */
 785         switch (id) {
 786         case AT91SAM9261_ID_SSC0:
 787                 pdev = &at91sam9261_ssc0_device;
 788                 configure_ssc0_pins(pins);
 789                 at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
 790                 break;
 791         case AT91SAM9261_ID_SSC1:
 792                 pdev = &at91sam9261_ssc1_device;
 793                 configure_ssc1_pins(pins);
 794                 at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
 795                 break;
 796         case AT91SAM9261_ID_SSC2:
 797                 pdev = &at91sam9261_ssc2_device;
 798                 configure_ssc2_pins(pins);
 799                 at91_clock_associate("ssc2_clk", &pdev->dev, "pclk");
 800                 break;
 801         default:
 802                 return;
 803         }
 804
 805         platform_device_register(pdev);
 806 }
 807
 808 #else
 809 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 810 #endif
 811
 812
 813 /* --------------------------------------------------------------------
 814  *  UART
 815  * -------------------------------------------------------------------- */
 816
 817 #if defined(CONFIG_SERIAL_ATMEL)
 818 static struct resource dbgu_resources[] = {
 819         [0] = {
 820                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 821                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 822                 .flags  = IORESOURCE_MEM,
 823         },
 824         [1] = {
 825                 .start  = AT91_ID_SYS,
 826                 .end    = AT91_ID_SYS,
 827                 .flags  = IORESOURCE_IRQ,
 828         },
 829 };
 830
 831 static struct atmel_uart_data dbgu_data = {
 832         .use_dma_tx     = 0,
 833         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 834         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 835 };
 836
 837 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 838
 839 static struct platform_device at91sam9261_dbgu_device = {
 840         .name           = "atmel_usart",
 841         .id             = 0,
 842         .dev            = {
 843                                 .dma_mask               = &dbgu_dmamask,
 844                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 845                                 .platform_data          = &dbgu_data,
 846         },
 847         .resource       = dbgu_resources,
 848         .num_resources  = ARRAY_SIZE(dbgu_resources),
 849 };
 850
 851 static inline void configure_dbgu_pins(void)
 852 {
 853         at91_set_A_periph(AT91_PIN_PA9, 0);             /* DRXD */
 854         at91_set_A_periph(AT91_PIN_PA10, 1);            /* DTXD */
 855 }
 856
 857 static struct resource uart0_resources[] = {
 858         [0] = {
 859                 .start  = AT91SAM9261_BASE_US0,
 860                 .end    = AT91SAM9261_BASE_US0 + SZ_16K - 1,
 861                 .flags  = IORESOURCE_MEM,
 862         },
 863         [1] = {
 864                 .start  = AT91SAM9261_ID_US0,
 865                 .end    = AT91SAM9261_ID_US0,
 866                 .flags  = IORESOURCE_IRQ,
 867         },
 868 };
 869
 870 static struct atmel_uart_data uart0_data = {
 871         .use_dma_tx     = 1,
 872         .use_dma_rx     = 1,
 873 };
 874
 875 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 876
 877 static struct platform_device at91sam9261_uart0_device = {
 878         .name           = "atmel_usart",
 879         .id             = 1,
 880         .dev            = {
 881                                 .dma_mask               = &uart0_dmamask,
 882                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 883                                 .platform_data          = &uart0_data,
 884         },
 885         .resource       = uart0_resources,
 886         .num_resources  = ARRAY_SIZE(uart0_resources),
 887 };
 888
 889 static inline void configure_usart0_pins(unsigned pins)
 890 {
 891         at91_set_A_periph(AT91_PIN_PC8, 1);             /* TXD0 */
 892         at91_set_A_periph(AT91_PIN_PC9, 0);             /* RXD0 */
 893
 894         if (pins & ATMEL_UART_RTS)
 895                 at91_set_A_periph(AT91_PIN_PC10, 0);    /* RTS0 */
 896         if (pins & ATMEL_UART_CTS)
 897                 at91_set_A_periph(AT91_PIN_PC11, 0);    /* CTS0 */
 898 }
 899
 900 static struct resource uart1_resources[] = {
 901         [0] = {
 902                 .start  = AT91SAM9261_BASE_US1,
 903                 .end    = AT91SAM9261_BASE_US1 + SZ_16K - 1,
 904                 .flags  = IORESOURCE_MEM,
 905         },
 906         [1] = {
 907                 .start  = AT91SAM9261_ID_US1,
 908                 .end    = AT91SAM9261_ID_US1,
 909                 .flags  = IORESOURCE_IRQ,
 910         },
 911 };
 912
 913 static struct atmel_uart_data uart1_data = {
 914         .use_dma_tx     = 1,
 915         .use_dma_rx     = 1,
 916 };
 917
 918 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 919
 920 static struct platform_device at91sam9261_uart1_device = {
 921         .name           = "atmel_usart",
 922         .id             = 2,
 923         .dev            = {
 924                                 .dma_mask               = &uart1_dmamask,
 925                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 926                                 .platform_data          = &uart1_data,
 927         },
 928         .resource       = uart1_resources,
 929         .num_resources  = ARRAY_SIZE(uart1_resources),
 930 };
 931
 932 static inline void configure_usart1_pins(unsigned pins)
 933 {
 934         at91_set_A_periph(AT91_PIN_PC12, 1);            /* TXD1 */
 935         at91_set_A_periph(AT91_PIN_PC13, 0);            /* RXD1 */
 936
 937         if (pins & ATMEL_UART_RTS)
 938                 at91_set_B_periph(AT91_PIN_PA12, 0);    /* RTS1 */
 939         if (pins & ATMEL_UART_CTS)
 940                 at91_set_B_periph(AT91_PIN_PA13, 0);    /* CTS1 */
 941 }
 942
 943 static struct resource uart2_resources[] = {
 944         [0] = {
 945                 .start  = AT91SAM9261_BASE_US2,
 946                 .end    = AT91SAM9261_BASE_US2 + SZ_16K - 1,
 947                 .flags  = IORESOURCE_MEM,
 948         },
 949         [1] = {
 950                 .start  = AT91SAM9261_ID_US2,
 951                 .end    = AT91SAM9261_ID_US2,
 952                 .flags  = IORESOURCE_IRQ,
 953         },
 954 };
 955
 956 static struct atmel_uart_data uart2_data = {
 957         .use_dma_tx     = 1,
 958         .use_dma_rx     = 1,
 959 };
 960
 961 static u64 uart2_dmamask = DMA_BIT_MASK(32);
 962
 963 static struct platform_device at91sam9261_uart2_device = {
 964         .name           = "atmel_usart",
 965         .id             = 3,
 966         .dev            = {
 967                                 .dma_mask               = &uart2_dmamask,
 968                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 969                                 .platform_data          = &uart2_data,
 970         },
 971         .resource       = uart2_resources,
 972         .num_resources  = ARRAY_SIZE(uart2_resources),
 973 };
 974
 975 static inline void configure_usart2_pins(unsigned pins)
 976 {
 977         at91_set_A_periph(AT91_PIN_PC15, 0);            /* RXD2 */
 978         at91_set_A_periph(AT91_PIN_PC14, 1);            /* TXD2 */
 979
 980         if (pins & ATMEL_UART_RTS)
 981                 at91_set_B_periph(AT91_PIN_PA15, 0);    /* RTS2*/
 982         if (pins & ATMEL_UART_CTS)
 983                 at91_set_B_periph(AT91_PIN_PA16, 0);    /* CTS2 */
 984 }
 985
 986 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
 987 struct platform_device *atmel_default_console_device;   /* the serial console device */
 988
 989 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
 990 {
 991         struct platform_device *pdev;
 992
 993         switch (id) {
 994                 case 0:         /* DBGU */
 995                         pdev = &at91sam9261_dbgu_device;
 996                         configure_dbgu_pins();
 997                         at91_clock_associate("mck", &pdev->dev, "usart");
 998                         break;
 999                 case AT91SAM9261_ID_US0:
1000                         pdev = &at91sam9261_uart0_device;
1001                         configure_usart0_pins(pins);
1002                         at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1003                         break;
1004                 case AT91SAM9261_ID_US1:
1005                         pdev = &at91sam9261_uart1_device;
1006                         configure_usart1_pins(pins);
1007                         at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1008                         break;
1009                 case AT91SAM9261_ID_US2:
1010                         pdev = &at91sam9261_uart2_device;
1011                         configure_usart2_pins(pins);
1012                         at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1013                         break;
1014                 default:
1015                         return;
1016         }
1017         pdev->id = portnr;              /* update to mapped ID */
1018
1019         if (portnr < ATMEL_MAX_UART)
1020                 at91_uarts[portnr] = pdev;
1021 }
1022
1023 void __init at91_set_serial_console(unsigned portnr)
1024 {
1025         if (portnr < ATMEL_MAX_UART)
1026                 atmel_default_console_device = at91_uarts[portnr];
1027 }
1028
1029 void __init at91_add_device_serial(void)
1030 {
1031         int i;
1032
1033         for (i = 0; i < ATMEL_MAX_UART; i++) {
1034                 if (at91_uarts[i])
1035                         platform_device_register(at91_uarts[i]);
1036         }
1037
1038         if (!atmel_default_console_device)
1039                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1040 }
1041 #else
1042 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1043 void __init at91_set_serial_console(unsigned portnr) {}
1044 void __init at91_add_device_serial(void) {}
1045 #endif
1046
1047
1048 /* -------------------------------------------------------------------- */
1049
1050 /*
1051  * These devices are always present and don't need any board-specific
1052  * setup.
1053  */
1054 static int __init at91_add_standard_devices(void)
1055 {
1056         at91_add_device_rtt();
1057         at91_add_device_watchdog();
1058         at91_add_device_tc();
1059         return 0;
1060 }
1061
1062 arch_initcall(at91_add_standard_devices);