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/gpio.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/i2c-gpio.h>
  20
  21 #include <linux/fb.h>
  22 #include <video/atmel_lcdc.h>
  23
  24 #include <mach/board.h>
  25 #include <mach/at91sam9261.h>
  26 #include <mach/at91sam9261_matrix.h>
  27 #include <mach/at91_matrix.h>
  28 #include <mach/at91sam9_smc.h>
  29
  30 #include "generic.h"
  31
  32
  33 /* --------------------------------------------------------------------
  34  *  USB Host
  35  * -------------------------------------------------------------------- */
  36
  37 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  38 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  39 static struct at91_usbh_data usbh_data;
  40
  41 static struct resource usbh_resources[] = {
  42         [0] = {
  43                 .start  = AT91SAM9261_UHP_BASE,
  44                 .end    = AT91SAM9261_UHP_BASE + SZ_1M - 1,
  45                 .flags  = IORESOURCE_MEM,
  46         },
  47         [1] = {
  48                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_UHP,
  49                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_UHP,
  50                 .flags  = IORESOURCE_IRQ,
  51         },
  52 };
  53
  54 static struct platform_device at91sam9261_usbh_device = {
  55         .name           = "at91_ohci",
  56         .id             = -1,
  57         .dev            = {
  58                                 .dma_mask               = &ohci_dmamask,
  59                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  60                                 .platform_data          = &usbh_data,
  61         },
  62         .resource       = usbh_resources,
  63         .num_resources  = ARRAY_SIZE(usbh_resources),
  64 };
  65
  66 void __init at91_add_device_usbh(struct at91_usbh_data *data)
  67 {
  68         int i;
  69
  70         if (!data)
  71                 return;
  72
  73         /* Enable overcurrent notification */
  74         for (i = 0; i < data->ports; i++) {
  75                 if (data->overcurrent_pin[i])
  76                         at91_set_gpio_input(data->overcurrent_pin[i], 1);
  77         }
  78
  79         usbh_data = *data;
  80         platform_device_register(&at91sam9261_usbh_device);
  81 }
  82 #else
  83 void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
  84 #endif
  85
  86
  87 /* --------------------------------------------------------------------
  88  *  USB Device (Gadget)
  89  * -------------------------------------------------------------------- */
  90
  91 #if defined(CONFIG_USB_AT91) || defined(CONFIG_USB_AT91_MODULE)
  92 static struct at91_udc_data udc_data;
  93
  94 static struct resource udc_resources[] = {
  95         [0] = {
  96                 .start  = AT91SAM9261_BASE_UDP,
  97                 .end    = AT91SAM9261_BASE_UDP + SZ_16K - 1,
  98                 .flags  = IORESOURCE_MEM,
  99         },
 100         [1] = {
 101                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_UDP,
 102                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_UDP,
 103                 .flags  = IORESOURCE_IRQ,
 104         },
 105 };
 106
 107 static struct platform_device at91sam9261_udc_device = {
 108         .name           = "at91_udc",
 109         .id             = -1,
 110         .dev            = {
 111                                 .platform_data          = &udc_data,
 112         },
 113         .resource       = udc_resources,
 114         .num_resources  = ARRAY_SIZE(udc_resources),
 115 };
 116
 117 void __init at91_add_device_udc(struct at91_udc_data *data)
 118 {
 119         if (!data)
 120                 return;
 121
 122         if (gpio_is_valid(data->vbus_pin)) {
 123                 at91_set_gpio_input(data->vbus_pin, 0);
 124                 at91_set_deglitch(data->vbus_pin, 1);
 125         }
 126
 127         /* Pullup pin is handled internally by USB device peripheral */
 128
 129         udc_data = *data;
 130         platform_device_register(&at91sam9261_udc_device);
 131 }
 132 #else
 133 void __init at91_add_device_udc(struct at91_udc_data *data) {}
 134 #endif
 135
 136 /* --------------------------------------------------------------------
 137  *  MMC / SD
 138  * -------------------------------------------------------------------- */
 139
 140 #if IS_ENABLED(CONFIG_MMC_ATMELMCI)
 141 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 142 static struct mci_platform_data mmc_data;
 143
 144 static struct resource mmc_resources[] = {
 145         [0] = {
 146                 .start  = AT91SAM9261_BASE_MCI,
 147                 .end    = AT91SAM9261_BASE_MCI + SZ_16K - 1,
 148                 .flags  = IORESOURCE_MEM,
 149         },
 150         [1] = {
 151                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_MCI,
 152                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_MCI,
 153                 .flags  = IORESOURCE_IRQ,
 154         },
 155 };
 156
 157 static struct platform_device at91sam9261_mmc_device = {
 158         .name           = "atmel_mci",
 159         .id             = -1,
 160         .dev            = {
 161                                 .dma_mask               = &mmc_dmamask,
 162                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 163                                 .platform_data          = &mmc_data,
 164         },
 165         .resource       = mmc_resources,
 166         .num_resources  = ARRAY_SIZE(mmc_resources),
 167 };
 168
 169 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
 170 {
 171         if (!data)
 172                 return;
 173
 174         if (data->slot[0].bus_width) {
 175                 /* input/irq */
 176                 if (gpio_is_valid(data->slot[0].detect_pin)) {
 177                         at91_set_gpio_input(data->slot[0].detect_pin, 1);
 178                         at91_set_deglitch(data->slot[0].detect_pin, 1);
 179                 }
 180                 if (gpio_is_valid(data->slot[0].wp_pin))
 181                         at91_set_gpio_input(data->slot[0].wp_pin, 1);
 182
 183                 /* CLK */
 184                 at91_set_B_periph(AT91_PIN_PA2, 0);
 185
 186                 /* CMD */
 187                 at91_set_B_periph(AT91_PIN_PA1, 1);
 188
 189                 /* DAT0, maybe DAT1..DAT3 */
 190                 at91_set_B_periph(AT91_PIN_PA0, 1);
 191                 if (data->slot[0].bus_width == 4) {
 192                         at91_set_B_periph(AT91_PIN_PA4, 1);
 193                         at91_set_B_periph(AT91_PIN_PA5, 1);
 194                         at91_set_B_periph(AT91_PIN_PA6, 1);
 195                 }
 196
 197                 mmc_data = *data;
 198                 platform_device_register(&at91sam9261_mmc_device);
 199         }
 200 }
 201 #else
 202 void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
 203 #endif
 204
 205
 206 /* --------------------------------------------------------------------
 207  *  NAND / SmartMedia
 208  * -------------------------------------------------------------------- */
 209
 210 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 211 static struct atmel_nand_data nand_data;
 212
 213 #define NAND_BASE       AT91_CHIPSELECT_3
 214
 215 static struct resource nand_resources[] = {
 216         {
 217                 .start  = NAND_BASE,
 218                 .end    = NAND_BASE + SZ_256M - 1,
 219                 .flags  = IORESOURCE_MEM,
 220         }
 221 };
 222
 223 static struct platform_device atmel_nand_device = {
 224         .name           = "atmel_nand",
 225         .id             = -1,
 226         .dev            = {
 227                                 .platform_data  = &nand_data,
 228         },
 229         .resource       = nand_resources,
 230         .num_resources  = ARRAY_SIZE(nand_resources),
 231 };
 232
 233 void __init at91_add_device_nand(struct atmel_nand_data *data)
 234 {
 235         unsigned long csa;
 236
 237         if (!data)
 238                 return;
 239
 240         csa = at91_matrix_read(AT91_MATRIX_EBICSA);
 241         at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 242
 243         /* enable pin */
 244         if (gpio_is_valid(data->enable_pin))
 245                 at91_set_gpio_output(data->enable_pin, 1);
 246
 247         /* ready/busy pin */
 248         if (gpio_is_valid(data->rdy_pin))
 249                 at91_set_gpio_input(data->rdy_pin, 1);
 250
 251         /* card detect pin */
 252         if (gpio_is_valid(data->det_pin))
 253                 at91_set_gpio_input(data->det_pin, 1);
 254
 255         at91_set_A_periph(AT91_PIN_PC0, 0);             /* NANDOE */
 256         at91_set_A_periph(AT91_PIN_PC1, 0);             /* NANDWE */
 257
 258         nand_data = *data;
 259         platform_device_register(&atmel_nand_device);
 260 }
 261
 262 #else
 263 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 264 #endif
 265
 266
 267 /* --------------------------------------------------------------------
 268  *  TWI (i2c)
 269  * -------------------------------------------------------------------- */
 270
 271 /*
 272  * Prefer the GPIO code since the TWI controller isn't robust
 273  * (gets overruns and underruns under load) and can only issue
 274  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 275  */
 276 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 277
 278 static struct i2c_gpio_platform_data pdata = {
 279         .sda_pin                = AT91_PIN_PA7,
 280         .sda_is_open_drain      = 1,
 281         .scl_pin                = AT91_PIN_PA8,
 282         .scl_is_open_drain      = 1,
 283         .udelay                 = 2,            /* ~100 kHz */
 284 };
 285
 286 static struct platform_device at91sam9261_twi_device = {
 287         .name                   = "i2c-gpio",
 288         .id                     = -1,
 289         .dev.platform_data      = &pdata,
 290 };
 291
 292 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 293 {
 294         at91_set_GPIO_periph(AT91_PIN_PA7, 1);          /* TWD (SDA) */
 295         at91_set_multi_drive(AT91_PIN_PA7, 1);
 296
 297         at91_set_GPIO_periph(AT91_PIN_PA8, 1);          /* TWCK (SCL) */
 298         at91_set_multi_drive(AT91_PIN_PA8, 1);
 299
 300         i2c_register_board_info(0, devices, nr_devices);
 301         platform_device_register(&at91sam9261_twi_device);
 302 }
 303
 304 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 305
 306 static struct resource twi_resources[] = {
 307         [0] = {
 308                 .start  = AT91SAM9261_BASE_TWI,
 309                 .end    = AT91SAM9261_BASE_TWI + SZ_16K - 1,
 310                 .flags  = IORESOURCE_MEM,
 311         },
 312         [1] = {
 313                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_TWI,
 314                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_TWI,
 315                 .flags  = IORESOURCE_IRQ,
 316         },
 317 };
 318
 319 static struct platform_device at91sam9261_twi_device = {
 320         .id             = -1,
 321         .resource       = twi_resources,
 322         .num_resources  = ARRAY_SIZE(twi_resources),
 323 };
 324
 325 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 326 {
 327         /* IP version is not the same on 9261 and g10 */
 328         if (cpu_is_at91sam9g10()) {
 329                 at91sam9261_twi_device.name = "i2c-at91sam9g10";
 330                 /* I2C PIO must not be configured as open-drain on this chip */
 331         } else {
 332                 at91sam9261_twi_device.name = "i2c-at91sam9261";
 333                 at91_set_multi_drive(AT91_PIN_PA7, 1);
 334                 at91_set_multi_drive(AT91_PIN_PA8, 1);
 335         }
 336
 337         /* pins used for TWI interface */
 338         at91_set_A_periph(AT91_PIN_PA7, 0);             /* TWD */
 339         at91_set_A_periph(AT91_PIN_PA8, 0);             /* TWCK */
 340
 341         i2c_register_board_info(0, devices, nr_devices);
 342         platform_device_register(&at91sam9261_twi_device);
 343 }
 344 #else
 345 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 346 #endif
 347
 348
 349 /* --------------------------------------------------------------------
 350  *  SPI
 351  * -------------------------------------------------------------------- */
 352
 353 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 354 static u64 spi_dmamask = DMA_BIT_MASK(32);
 355
 356 static struct resource spi0_resources[] = {
 357         [0] = {
 358                 .start  = AT91SAM9261_BASE_SPI0,
 359                 .end    = AT91SAM9261_BASE_SPI0 + SZ_16K - 1,
 360                 .flags  = IORESOURCE_MEM,
 361         },
 362         [1] = {
 363                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_SPI0,
 364                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_SPI0,
 365                 .flags  = IORESOURCE_IRQ,
 366         },
 367 };
 368
 369 static struct platform_device at91sam9261_spi0_device = {
 370         .name           = "atmel_spi",
 371         .id             = 0,
 372         .dev            = {
 373                                 .dma_mask               = &spi_dmamask,
 374                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 375         },
 376         .resource       = spi0_resources,
 377         .num_resources  = ARRAY_SIZE(spi0_resources),
 378 };
 379
 380 static const unsigned spi0_standard_cs[4] = { AT91_PIN_PA3, AT91_PIN_PA4, AT91_PIN_PA5, AT91_PIN_PA6 };
 381
 382 static struct resource spi1_resources[] = {
 383         [0] = {
 384                 .start  = AT91SAM9261_BASE_SPI1,
 385                 .end    = AT91SAM9261_BASE_SPI1 + SZ_16K - 1,
 386                 .flags  = IORESOURCE_MEM,
 387         },
 388         [1] = {
 389                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_SPI1,
 390                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_SPI1,
 391                 .flags  = IORESOURCE_IRQ,
 392         },
 393 };
 394
 395 static struct platform_device at91sam9261_spi1_device = {
 396         .name           = "atmel_spi",
 397         .id             = 1,
 398         .dev            = {
 399                                 .dma_mask               = &spi_dmamask,
 400                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 401         },
 402         .resource       = spi1_resources,
 403         .num_resources  = ARRAY_SIZE(spi1_resources),
 404 };
 405
 406 static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB28, AT91_PIN_PA24, AT91_PIN_PA25, AT91_PIN_PA26 };
 407
 408 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 409 {
 410         int i;
 411         unsigned long cs_pin;
 412         short enable_spi0 = 0;
 413         short enable_spi1 = 0;
 414
 415         /* Choose SPI chip-selects */
 416         for (i = 0; i < nr_devices; i++) {
 417                 if (devices[i].controller_data)
 418                         cs_pin = (unsigned long) devices[i].controller_data;
 419                 else if (devices[i].bus_num == 0)
 420                         cs_pin = spi0_standard_cs[devices[i].chip_select];
 421                 else
 422                         cs_pin = spi1_standard_cs[devices[i].chip_select];
 423
 424                 if (!gpio_is_valid(cs_pin))
 425                         continue;
 426
 427                 if (devices[i].bus_num == 0)
 428                         enable_spi0 = 1;
 429                 else
 430                         enable_spi1 = 1;
 431
 432                 /* enable chip-select pin */
 433                 at91_set_gpio_output(cs_pin, 1);
 434
 435                 /* pass chip-select pin to driver */
 436                 devices[i].controller_data = (void *) cs_pin;
 437         }
 438
 439         spi_register_board_info(devices, nr_devices);
 440
 441         /* Configure SPI bus(es) */
 442         if (enable_spi0) {
 443                 at91_set_A_periph(AT91_PIN_PA0, 0);     /* SPI0_MISO */
 444                 at91_set_A_periph(AT91_PIN_PA1, 0);     /* SPI0_MOSI */
 445                 at91_set_A_periph(AT91_PIN_PA2, 0);     /* SPI0_SPCK */
 446
 447                 platform_device_register(&at91sam9261_spi0_device);
 448         }
 449         if (enable_spi1) {
 450                 at91_set_A_periph(AT91_PIN_PB30, 0);    /* SPI1_MISO */
 451                 at91_set_A_periph(AT91_PIN_PB31, 0);    /* SPI1_MOSI */
 452                 at91_set_A_periph(AT91_PIN_PB29, 0);    /* SPI1_SPCK */
 453
 454                 platform_device_register(&at91sam9261_spi1_device);
 455         }
 456 }
 457 #else
 458 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 459 #endif
 460
 461
 462 /* --------------------------------------------------------------------
 463  *  LCD Controller
 464  * -------------------------------------------------------------------- */
 465
 466 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 467 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 468 static struct atmel_lcdfb_info lcdc_data;
 469
 470 static struct resource lcdc_resources[] = {
 471         [0] = {
 472                 .start  = AT91SAM9261_LCDC_BASE,
 473                 .end    = AT91SAM9261_LCDC_BASE + SZ_4K - 1,
 474                 .flags  = IORESOURCE_MEM,
 475         },
 476         [1] = {
 477                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_LCDC,
 478                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_LCDC,
 479                 .flags  = IORESOURCE_IRQ,
 480         },
 481 #if defined(CONFIG_FB_INTSRAM)
 482         [2] = {
 483                 .start  = AT91SAM9261_SRAM_BASE,
 484                 .end    = AT91SAM9261_SRAM_BASE + AT91SAM9261_SRAM_SIZE - 1,
 485                 .flags  = IORESOURCE_MEM,
 486         },
 487 #endif
 488 };
 489
 490 static struct platform_device at91_lcdc_device = {
 491         .name           = "atmel_lcdfb",
 492         .id             = 0,
 493         .dev            = {
 494                                 .dma_mask               = &lcdc_dmamask,
 495                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 496                                 .platform_data          = &lcdc_data,
 497         },
 498         .resource       = lcdc_resources,
 499         .num_resources  = ARRAY_SIZE(lcdc_resources),
 500 };
 501
 502 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 503 {
 504         if (!data) {
 505                 return;
 506         }
 507
 508 #if defined(CONFIG_FB_ATMEL_STN)
 509         at91_set_A_periph(AT91_PIN_PB0, 0);     /* LCDVSYNC */
 510         at91_set_A_periph(AT91_PIN_PB1, 0);     /* LCDHSYNC */
 511         at91_set_A_periph(AT91_PIN_PB2, 0);     /* LCDDOTCK */
 512         at91_set_A_periph(AT91_PIN_PB3, 0);     /* LCDDEN */
 513         at91_set_A_periph(AT91_PIN_PB4, 0);     /* LCDCC */
 514         at91_set_A_periph(AT91_PIN_PB5, 0);     /* LCDD0 */
 515         at91_set_A_periph(AT91_PIN_PB6, 0);     /* LCDD1 */
 516         at91_set_A_periph(AT91_PIN_PB7, 0);     /* LCDD2 */
 517         at91_set_A_periph(AT91_PIN_PB8, 0);     /* LCDD3 */
 518 #else
 519         at91_set_A_periph(AT91_PIN_PB1, 0);     /* LCDHSYNC */
 520         at91_set_A_periph(AT91_PIN_PB2, 0);     /* LCDDOTCK */
 521         at91_set_A_periph(AT91_PIN_PB3, 0);     /* LCDDEN */
 522         at91_set_A_periph(AT91_PIN_PB4, 0);     /* LCDCC */
 523         at91_set_A_periph(AT91_PIN_PB7, 0);     /* LCDD2 */
 524         at91_set_A_periph(AT91_PIN_PB8, 0);     /* LCDD3 */
 525         at91_set_A_periph(AT91_PIN_PB9, 0);     /* LCDD4 */
 526         at91_set_A_periph(AT91_PIN_PB10, 0);    /* LCDD5 */
 527         at91_set_A_periph(AT91_PIN_PB11, 0);    /* LCDD6 */
 528         at91_set_A_periph(AT91_PIN_PB12, 0);    /* LCDD7 */
 529         at91_set_A_periph(AT91_PIN_PB15, 0);    /* LCDD10 */
 530         at91_set_A_periph(AT91_PIN_PB16, 0);    /* LCDD11 */
 531         at91_set_A_periph(AT91_PIN_PB17, 0);    /* LCDD12 */
 532         at91_set_A_periph(AT91_PIN_PB18, 0);    /* LCDD13 */
 533         at91_set_A_periph(AT91_PIN_PB19, 0);    /* LCDD14 */
 534         at91_set_A_periph(AT91_PIN_PB20, 0);    /* LCDD15 */
 535         at91_set_B_periph(AT91_PIN_PB23, 0);    /* LCDD18 */
 536         at91_set_B_periph(AT91_PIN_PB24, 0);    /* LCDD19 */
 537         at91_set_B_periph(AT91_PIN_PB25, 0);    /* LCDD20 */
 538         at91_set_B_periph(AT91_PIN_PB26, 0);    /* LCDD21 */
 539         at91_set_B_periph(AT91_PIN_PB27, 0);    /* LCDD22 */
 540         at91_set_B_periph(AT91_PIN_PB28, 0);    /* LCDD23 */
 541 #endif
 542
 543         if (ARRAY_SIZE(lcdc_resources) > 2) {
 544                 void __iomem *fb;
 545                 struct resource *fb_res = &lcdc_resources[2];
 546                 size_t fb_len = resource_size(fb_res);
 547
 548                 fb = ioremap(fb_res->start, fb_len);
 549                 if (fb) {
 550                         memset(fb, 0, fb_len);
 551                         iounmap(fb);
 552                 }
 553         }
 554         lcdc_data = *data;
 555         platform_device_register(&at91_lcdc_device);
 556 }
 557 #else
 558 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 559 #endif
 560
 561
 562 /* --------------------------------------------------------------------
 563  *  Timer/Counter block
 564  * -------------------------------------------------------------------- */
 565
 566 #ifdef CONFIG_ATMEL_TCLIB
 567
 568 static struct resource tcb_resources[] = {
 569         [0] = {
 570                 .start  = AT91SAM9261_BASE_TCB0,
 571                 .end    = AT91SAM9261_BASE_TCB0 + SZ_16K - 1,
 572                 .flags  = IORESOURCE_MEM,
 573         },
 574         [1] = {
 575                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_TC0,
 576                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_TC0,
 577                 .flags  = IORESOURCE_IRQ,
 578         },
 579         [2] = {
 580                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_TC1,
 581                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_TC1,
 582                 .flags  = IORESOURCE_IRQ,
 583         },
 584         [3] = {
 585                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_TC2,
 586                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_TC2,
 587                 .flags  = IORESOURCE_IRQ,
 588         },
 589 };
 590
 591 static struct platform_device at91sam9261_tcb_device = {
 592         .name           = "atmel_tcb",
 593         .id             = 0,
 594         .resource       = tcb_resources,
 595         .num_resources  = ARRAY_SIZE(tcb_resources),
 596 };
 597
 598 static void __init at91_add_device_tc(void)
 599 {
 600         platform_device_register(&at91sam9261_tcb_device);
 601 }
 602 #else
 603 static void __init at91_add_device_tc(void) { }
 604 #endif
 605
 606
 607 /* --------------------------------------------------------------------
 608  *  RTT
 609  * -------------------------------------------------------------------- */
 610
 611 static struct resource rtt_resources[] = {
 612         {
 613                 .start  = AT91SAM9261_BASE_RTT,
 614                 .end    = AT91SAM9261_BASE_RTT + SZ_16 - 1,
 615                 .flags  = IORESOURCE_MEM,
 616         }, {
 617                 .flags  = IORESOURCE_MEM,
 618         }, {
 619                 .flags  = IORESOURCE_IRQ,
 620         }
 621 };
 622
 623 static struct platform_device at91sam9261_rtt_device = {
 624         .name           = "at91_rtt",
 625         .id             = 0,
 626         .resource       = rtt_resources,
 627 };
 628
 629 #if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
 630 static void __init at91_add_device_rtt_rtc(void)
 631 {
 632         at91sam9261_rtt_device.name = "rtc-at91sam9";
 633         /*
 634          * The second resource is needed:
 635          * GPBR will serve as the storage for RTC time offset
 636          */
 637         at91sam9261_rtt_device.num_resources = 3;
 638         rtt_resources[1].start = AT91SAM9261_BASE_GPBR +
 639                                  4 * CONFIG_RTC_DRV_AT91SAM9_GPBR;
 640         rtt_resources[1].end = rtt_resources[1].start + 3;
 641         rtt_resources[2].start = NR_IRQS_LEGACY + AT91_ID_SYS;
 642         rtt_resources[2].end = NR_IRQS_LEGACY + AT91_ID_SYS;
 643 }
 644 #else
 645 static void __init at91_add_device_rtt_rtc(void)
 646 {
 647         /* Only one resource is needed: RTT not used as RTC */
 648         at91sam9261_rtt_device.num_resources = 1;
 649 }
 650 #endif
 651
 652 static void __init at91_add_device_rtt(void)
 653 {
 654         at91_add_device_rtt_rtc();
 655         platform_device_register(&at91sam9261_rtt_device);
 656 }
 657
 658
 659 /* --------------------------------------------------------------------
 660  *  Watchdog
 661  * -------------------------------------------------------------------- */
 662
 663 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
 664 static struct resource wdt_resources[] = {
 665         {
 666                 .start  = AT91SAM9261_BASE_WDT,
 667                 .end    = AT91SAM9261_BASE_WDT + SZ_16 - 1,
 668                 .flags  = IORESOURCE_MEM,
 669         }
 670 };
 671
 672 static struct platform_device at91sam9261_wdt_device = {
 673         .name           = "at91_wdt",
 674         .id             = -1,
 675         .resource       = wdt_resources,
 676         .num_resources  = ARRAY_SIZE(wdt_resources),
 677 };
 678
 679 static void __init at91_add_device_watchdog(void)
 680 {
 681         platform_device_register(&at91sam9261_wdt_device);
 682 }
 683 #else
 684 static void __init at91_add_device_watchdog(void) {}
 685 #endif
 686
 687
 688 /* --------------------------------------------------------------------
 689  *  SSC -- Synchronous Serial Controller
 690  * -------------------------------------------------------------------- */
 691
 692 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 693 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
 694
 695 static struct resource ssc0_resources[] = {
 696         [0] = {
 697                 .start  = AT91SAM9261_BASE_SSC0,
 698                 .end    = AT91SAM9261_BASE_SSC0 + SZ_16K - 1,
 699                 .flags  = IORESOURCE_MEM,
 700         },
 701         [1] = {
 702                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_SSC0,
 703                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_SSC0,
 704                 .flags  = IORESOURCE_IRQ,
 705         },
 706 };
 707
 708 static struct platform_device at91sam9261_ssc0_device = {
 709         .name   = "ssc",
 710         .id     = 0,
 711         .dev    = {
 712                 .dma_mask               = &ssc0_dmamask,
 713                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 714         },
 715         .resource       = ssc0_resources,
 716         .num_resources  = ARRAY_SIZE(ssc0_resources),
 717 };
 718
 719 static inline void configure_ssc0_pins(unsigned pins)
 720 {
 721         if (pins & ATMEL_SSC_TF)
 722                 at91_set_A_periph(AT91_PIN_PB21, 1);
 723         if (pins & ATMEL_SSC_TK)
 724                 at91_set_A_periph(AT91_PIN_PB22, 1);
 725         if (pins & ATMEL_SSC_TD)
 726                 at91_set_A_periph(AT91_PIN_PB23, 1);
 727         if (pins & ATMEL_SSC_RD)
 728                 at91_set_A_periph(AT91_PIN_PB24, 1);
 729         if (pins & ATMEL_SSC_RK)
 730                 at91_set_A_periph(AT91_PIN_PB25, 1);
 731         if (pins & ATMEL_SSC_RF)
 732                 at91_set_A_periph(AT91_PIN_PB26, 1);
 733 }
 734
 735 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
 736
 737 static struct resource ssc1_resources[] = {
 738         [0] = {
 739                 .start  = AT91SAM9261_BASE_SSC1,
 740                 .end    = AT91SAM9261_BASE_SSC1 + SZ_16K - 1,
 741                 .flags  = IORESOURCE_MEM,
 742         },
 743         [1] = {
 744                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_SSC1,
 745                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_SSC1,
 746                 .flags  = IORESOURCE_IRQ,
 747         },
 748 };
 749
 750 static struct platform_device at91sam9261_ssc1_device = {
 751         .name   = "ssc",
 752         .id     = 1,
 753         .dev    = {
 754                 .dma_mask               = &ssc1_dmamask,
 755                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 756         },
 757         .resource       = ssc1_resources,
 758         .num_resources  = ARRAY_SIZE(ssc1_resources),
 759 };
 760
 761 static inline void configure_ssc1_pins(unsigned pins)
 762 {
 763         if (pins & ATMEL_SSC_TF)
 764                 at91_set_B_periph(AT91_PIN_PA17, 1);
 765         if (pins & ATMEL_SSC_TK)
 766                 at91_set_B_periph(AT91_PIN_PA18, 1);
 767         if (pins & ATMEL_SSC_TD)
 768                 at91_set_B_periph(AT91_PIN_PA19, 1);
 769         if (pins & ATMEL_SSC_RD)
 770                 at91_set_B_periph(AT91_PIN_PA20, 1);
 771         if (pins & ATMEL_SSC_RK)
 772                 at91_set_B_periph(AT91_PIN_PA21, 1);
 773         if (pins & ATMEL_SSC_RF)
 774                 at91_set_B_periph(AT91_PIN_PA22, 1);
 775 }
 776
 777 static u64 ssc2_dmamask = DMA_BIT_MASK(32);
 778
 779 static struct resource ssc2_resources[] = {
 780         [0] = {
 781                 .start  = AT91SAM9261_BASE_SSC2,
 782                 .end    = AT91SAM9261_BASE_SSC2 + SZ_16K - 1,
 783                 .flags  = IORESOURCE_MEM,
 784         },
 785         [1] = {
 786                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_SSC2,
 787                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_SSC2,
 788                 .flags  = IORESOURCE_IRQ,
 789         },
 790 };
 791
 792 static struct platform_device at91sam9261_ssc2_device = {
 793         .name   = "ssc",
 794         .id     = 2,
 795         .dev    = {
 796                 .dma_mask               = &ssc2_dmamask,
 797                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 798         },
 799         .resource       = ssc2_resources,
 800         .num_resources  = ARRAY_SIZE(ssc2_resources),
 801 };
 802
 803 static inline void configure_ssc2_pins(unsigned pins)
 804 {
 805         if (pins & ATMEL_SSC_TF)
 806                 at91_set_B_periph(AT91_PIN_PC25, 1);
 807         if (pins & ATMEL_SSC_TK)
 808                 at91_set_B_periph(AT91_PIN_PC26, 1);
 809         if (pins & ATMEL_SSC_TD)
 810                 at91_set_B_periph(AT91_PIN_PC27, 1);
 811         if (pins & ATMEL_SSC_RD)
 812                 at91_set_B_periph(AT91_PIN_PC28, 1);
 813         if (pins & ATMEL_SSC_RK)
 814                 at91_set_B_periph(AT91_PIN_PC29, 1);
 815         if (pins & ATMEL_SSC_RF)
 816                 at91_set_B_periph(AT91_PIN_PC30, 1);
 817 }
 818
 819 /*
 820  * SSC controllers are accessed through library code, instead of any
 821  * kind of all-singing/all-dancing driver.  For example one could be
 822  * used by a particular I2S audio codec's driver, while another one
 823  * on the same system might be used by a custom data capture driver.
 824  */
 825 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 826 {
 827         struct platform_device *pdev;
 828
 829         /*
 830          * NOTE: caller is responsible for passing information matching
 831          * "pins" to whatever will be using each particular controller.
 832          */
 833         switch (id) {
 834         case AT91SAM9261_ID_SSC0:
 835                 pdev = &at91sam9261_ssc0_device;
 836                 configure_ssc0_pins(pins);
 837                 break;
 838         case AT91SAM9261_ID_SSC1:
 839                 pdev = &at91sam9261_ssc1_device;
 840                 configure_ssc1_pins(pins);
 841                 break;
 842         case AT91SAM9261_ID_SSC2:
 843                 pdev = &at91sam9261_ssc2_device;
 844                 configure_ssc2_pins(pins);
 845                 break;
 846         default:
 847                 return;
 848         }
 849
 850         platform_device_register(pdev);
 851 }
 852
 853 #else
 854 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 855 #endif
 856
 857
 858 /* --------------------------------------------------------------------
 859  *  UART
 860  * -------------------------------------------------------------------- */
 861
 862 #if defined(CONFIG_SERIAL_ATMEL)
 863 static struct resource dbgu_resources[] = {
 864         [0] = {
 865                 .start  = AT91SAM9261_BASE_DBGU,
 866                 .end    = AT91SAM9261_BASE_DBGU + SZ_512 - 1,
 867                 .flags  = IORESOURCE_MEM,
 868         },
 869         [1] = {
 870                 .start  = NR_IRQS_LEGACY + AT91_ID_SYS,
 871                 .end    = NR_IRQS_LEGACY + AT91_ID_SYS,
 872                 .flags  = IORESOURCE_IRQ,
 873         },
 874 };
 875
 876 static struct atmel_uart_data dbgu_data = {
 877         .use_dma_tx     = 0,
 878         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 879 };
 880
 881 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 882
 883 static struct platform_device at91sam9261_dbgu_device = {
 884         .name           = "atmel_usart",
 885         .id             = 0,
 886         .dev            = {
 887                                 .dma_mask               = &dbgu_dmamask,
 888                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 889                                 .platform_data          = &dbgu_data,
 890         },
 891         .resource       = dbgu_resources,
 892         .num_resources  = ARRAY_SIZE(dbgu_resources),
 893 };
 894
 895 static inline void configure_dbgu_pins(void)
 896 {
 897         at91_set_A_periph(AT91_PIN_PA9, 0);             /* DRXD */
 898         at91_set_A_periph(AT91_PIN_PA10, 1);            /* DTXD */
 899 }
 900
 901 static struct resource uart0_resources[] = {
 902         [0] = {
 903                 .start  = AT91SAM9261_BASE_US0,
 904                 .end    = AT91SAM9261_BASE_US0 + SZ_16K - 1,
 905                 .flags  = IORESOURCE_MEM,
 906         },
 907         [1] = {
 908                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_US0,
 909                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_US0,
 910                 .flags  = IORESOURCE_IRQ,
 911         },
 912 };
 913
 914 static struct atmel_uart_data uart0_data = {
 915         .use_dma_tx     = 1,
 916         .use_dma_rx     = 1,
 917 };
 918
 919 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 920
 921 static struct platform_device at91sam9261_uart0_device = {
 922         .name           = "atmel_usart",
 923         .id             = 1,
 924         .dev            = {
 925                                 .dma_mask               = &uart0_dmamask,
 926                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 927                                 .platform_data          = &uart0_data,
 928         },
 929         .resource       = uart0_resources,
 930         .num_resources  = ARRAY_SIZE(uart0_resources),
 931 };
 932
 933 static inline void configure_usart0_pins(unsigned pins)
 934 {
 935         at91_set_A_periph(AT91_PIN_PC8, 1);             /* TXD0 */
 936         at91_set_A_periph(AT91_PIN_PC9, 0);             /* RXD0 */
 937
 938         if (pins & ATMEL_UART_RTS)
 939                 at91_set_A_periph(AT91_PIN_PC10, 0);    /* RTS0 */
 940         if (pins & ATMEL_UART_CTS)
 941                 at91_set_A_periph(AT91_PIN_PC11, 0);    /* CTS0 */
 942 }
 943
 944 static struct resource uart1_resources[] = {
 945         [0] = {
 946                 .start  = AT91SAM9261_BASE_US1,
 947                 .end    = AT91SAM9261_BASE_US1 + SZ_16K - 1,
 948                 .flags  = IORESOURCE_MEM,
 949         },
 950         [1] = {
 951                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_US1,
 952                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_US1,
 953                 .flags  = IORESOURCE_IRQ,
 954         },
 955 };
 956
 957 static struct atmel_uart_data uart1_data = {
 958         .use_dma_tx     = 1,
 959         .use_dma_rx     = 1,
 960 };
 961
 962 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 963
 964 static struct platform_device at91sam9261_uart1_device = {
 965         .name           = "atmel_usart",
 966         .id             = 2,
 967         .dev            = {
 968                                 .dma_mask               = &uart1_dmamask,
 969                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 970                                 .platform_data          = &uart1_data,
 971         },
 972         .resource       = uart1_resources,
 973         .num_resources  = ARRAY_SIZE(uart1_resources),
 974 };
 975
 976 static inline void configure_usart1_pins(unsigned pins)
 977 {
 978         at91_set_A_periph(AT91_PIN_PC12, 1);            /* TXD1 */
 979         at91_set_A_periph(AT91_PIN_PC13, 0);            /* RXD1 */
 980
 981         if (pins & ATMEL_UART_RTS)
 982                 at91_set_B_periph(AT91_PIN_PA12, 0);    /* RTS1 */
 983         if (pins & ATMEL_UART_CTS)
 984                 at91_set_B_periph(AT91_PIN_PA13, 0);    /* CTS1 */
 985 }
 986
 987 static struct resource uart2_resources[] = {
 988         [0] = {
 989                 .start  = AT91SAM9261_BASE_US2,
 990                 .end    = AT91SAM9261_BASE_US2 + SZ_16K - 1,
 991                 .flags  = IORESOURCE_MEM,
 992         },
 993         [1] = {
 994                 .start  = NR_IRQS_LEGACY + AT91SAM9261_ID_US2,
 995                 .end    = NR_IRQS_LEGACY + AT91SAM9261_ID_US2,
 996                 .flags  = IORESOURCE_IRQ,
 997         },
 998 };
 999
1000 static struct atmel_uart_data uart2_data = {
1001         .use_dma_tx     = 1,
1002         .use_dma_rx     = 1,
1003 };
1004
1005 static u64 uart2_dmamask = DMA_BIT_MASK(32);
1006
1007 static struct platform_device at91sam9261_uart2_device = {
1008         .name           = "atmel_usart",
1009         .id             = 3,
1010         .dev            = {
1011                                 .dma_mask               = &uart2_dmamask,
1012                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1013                                 .platform_data          = &uart2_data,
1014         },
1015         .resource       = uart2_resources,
1016         .num_resources  = ARRAY_SIZE(uart2_resources),
1017 };
1018
1019 static inline void configure_usart2_pins(unsigned pins)
1020 {
1021         at91_set_A_periph(AT91_PIN_PC15, 0);            /* RXD2 */
1022         at91_set_A_periph(AT91_PIN_PC14, 1);            /* TXD2 */
1023
1024         if (pins & ATMEL_UART_RTS)
1025                 at91_set_B_periph(AT91_PIN_PA15, 0);    /* RTS2*/
1026         if (pins & ATMEL_UART_CTS)
1027                 at91_set_B_periph(AT91_PIN_PA16, 0);    /* CTS2 */
1028 }
1029
1030 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
1031
1032 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1033 {
1034         struct platform_device *pdev;
1035         struct atmel_uart_data *pdata;
1036
1037         switch (id) {
1038                 case 0:         /* DBGU */
1039                         pdev = &at91sam9261_dbgu_device;
1040                         configure_dbgu_pins();
1041                         break;
1042                 case AT91SAM9261_ID_US0:
1043                         pdev = &at91sam9261_uart0_device;
1044                         configure_usart0_pins(pins);
1045                         break;
1046                 case AT91SAM9261_ID_US1:
1047                         pdev = &at91sam9261_uart1_device;
1048                         configure_usart1_pins(pins);
1049                         break;
1050                 case AT91SAM9261_ID_US2:
1051                         pdev = &at91sam9261_uart2_device;
1052                         configure_usart2_pins(pins);
1053                         break;
1054                 default:
1055                         return;
1056         }
1057         pdata = pdev->dev.platform_data;
1058         pdata->num = portnr;            /* update to mapped ID */
1059
1060         if (portnr < ATMEL_MAX_UART)
1061                 at91_uarts[portnr] = pdev;
1062 }
1063
1064 void __init at91_add_device_serial(void)
1065 {
1066         int i;
1067
1068         for (i = 0; i < ATMEL_MAX_UART; i++) {
1069                 if (at91_uarts[i])
1070                         platform_device_register(at91_uarts[i]);
1071         }
1072 }
1073 #else
1074 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1075 void __init at91_add_device_serial(void) {}
1076 #endif
1077
1078
1079 /* -------------------------------------------------------------------- */
1080
1081 /*
1082  * These devices are always present and don't need any board-specific
1083  * setup.
1084  */
1085 static int __init at91_add_standard_devices(void)
1086 {
1087         at91_add_device_rtt();
1088         at91_add_device_watchdog();
1089         at91_add_device_tc();
1090         return 0;
1091 }
1092
1093 arch_initcall(at91_add_standard_devices);