git.oblomov.eu Git - linux-2.6/blob - arch/arm/mach-at91/at91sam9rl_devices.c

   1 /*
   2  *  Copyright (C) 2007 Atmel Corporation
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file COPYING in the main directory of this archive for
   6  * more details.
   7  */
   8
   9 #include <asm/mach/arch.h>
  10 #include <asm/mach/map.h>
  11
  12 #include <linux/dma-mapping.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/i2c-gpio.h>
  15
  16 #include <linux/fb.h>
  17 #include <video/atmel_lcdc.h>
  18
  19 #include <mach/board.h>
  20 #include <mach/gpio.h>
  21 #include <mach/at91sam9rl.h>
  22 #include <mach/at91sam9rl_matrix.h>
  23 #include <mach/at91sam9_smc.h>
  24
  25 #include "generic.h"
  26
  27
  28 /* --------------------------------------------------------------------
  29  *  USB HS Device (Gadget)
  30  * -------------------------------------------------------------------- */
  31
  32 #if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
  33
  34 static struct resource usba_udc_resources[] = {
  35         [0] = {
  36                 .start  = AT91SAM9RL_UDPHS_FIFO,
  37                 .end    = AT91SAM9RL_UDPHS_FIFO + SZ_512K - 1,
  38                 .flags  = IORESOURCE_MEM,
  39         },
  40         [1] = {
  41                 .start  = AT91SAM9RL_BASE_UDPHS,
  42                 .end    = AT91SAM9RL_BASE_UDPHS + SZ_1K - 1,
  43                 .flags  = IORESOURCE_MEM,
  44         },
  45         [2] = {
  46                 .start  = AT91SAM9RL_ID_UDPHS,
  47                 .end    = AT91SAM9RL_ID_UDPHS,
  48                 .flags  = IORESOURCE_IRQ,
  49         },
  50 };
  51
  52 #define EP(nam, idx, maxpkt, maxbk, dma, isoc)                  \
  53         [idx] = {                                               \
  54                 .name           = nam,                          \
  55                 .index          = idx,                          \
  56                 .fifo_size      = maxpkt,                       \
  57                 .nr_banks       = maxbk,                        \
  58                 .can_dma        = dma,                          \
  59                 .can_isoc       = isoc,                         \
  60         }
  61
  62 static struct usba_ep_data usba_udc_ep[] __initdata = {
  63         EP("ep0", 0, 64, 1, 0, 0),
  64         EP("ep1", 1, 1024, 2, 1, 1),
  65         EP("ep2", 2, 1024, 2, 1, 1),
  66         EP("ep3", 3, 1024, 3, 1, 0),
  67         EP("ep4", 4, 1024, 3, 1, 0),
  68         EP("ep5", 5, 1024, 3, 1, 1),
  69         EP("ep6", 6, 1024, 3, 1, 1),
  70 };
  71
  72 #undef EP
  73
  74 /*
  75  * pdata doesn't have room for any endpoints, so we need to
  76  * append room for the ones we need right after it.
  77  */
  78 static struct {
  79         struct usba_platform_data pdata;
  80         struct usba_ep_data ep[7];
  81 } usba_udc_data;
  82
  83 static struct platform_device at91_usba_udc_device = {
  84         .name           = "atmel_usba_udc",
  85         .id             = -1,
  86         .dev            = {
  87                                 .platform_data  = &usba_udc_data.pdata,
  88         },
  89         .resource       = usba_udc_resources,
  90         .num_resources  = ARRAY_SIZE(usba_udc_resources),
  91 };
  92
  93 void __init at91_add_device_usba(struct usba_platform_data *data)
  94 {
  95         /*
  96          * Invalid pins are 0 on AT91, but the usba driver is shared
  97          * with AVR32, which use negative values instead. Once/if
  98          * gpio_is_valid() is ported to AT91, revisit this code.
  99          */
 100         usba_udc_data.pdata.vbus_pin = -EINVAL;
 101         usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
 102         memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));;
 103
 104         if (data && data->vbus_pin > 0) {
 105                 at91_set_gpio_input(data->vbus_pin, 0);
 106                 at91_set_deglitch(data->vbus_pin, 1);
 107                 usba_udc_data.pdata.vbus_pin = data->vbus_pin;
 108         }
 109
 110         /* Pullup pin is handled internally by USB device peripheral */
 111
 112         /* Clocks */
 113         at91_clock_associate("utmi_clk", &at91_usba_udc_device.dev, "hclk");
 114         at91_clock_associate("udphs_clk", &at91_usba_udc_device.dev, "pclk");
 115
 116         platform_device_register(&at91_usba_udc_device);
 117 }
 118 #else
 119 void __init at91_add_device_usba(struct usba_platform_data *data) {}
 120 #endif
 121
 122
 123 /* --------------------------------------------------------------------
 124  *  MMC / SD
 125  * -------------------------------------------------------------------- */
 126
 127 #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE)
 128 static u64 mmc_dmamask = DMA_BIT_MASK(32);
 129 static struct at91_mmc_data mmc_data;
 130
 131 static struct resource mmc_resources[] = {
 132         [0] = {
 133                 .start  = AT91SAM9RL_BASE_MCI,
 134                 .end    = AT91SAM9RL_BASE_MCI + SZ_16K - 1,
 135                 .flags  = IORESOURCE_MEM,
 136         },
 137         [1] = {
 138                 .start  = AT91SAM9RL_ID_MCI,
 139                 .end    = AT91SAM9RL_ID_MCI,
 140                 .flags  = IORESOURCE_IRQ,
 141         },
 142 };
 143
 144 static struct platform_device at91sam9rl_mmc_device = {
 145         .name           = "at91_mci",
 146         .id             = -1,
 147         .dev            = {
 148                                 .dma_mask               = &mmc_dmamask,
 149                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 150                                 .platform_data          = &mmc_data,
 151         },
 152         .resource       = mmc_resources,
 153         .num_resources  = ARRAY_SIZE(mmc_resources),
 154 };
 155
 156 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 157 {
 158         if (!data)
 159                 return;
 160
 161         /* input/irq */
 162         if (data->det_pin) {
 163                 at91_set_gpio_input(data->det_pin, 1);
 164                 at91_set_deglitch(data->det_pin, 1);
 165         }
 166         if (data->wp_pin)
 167                 at91_set_gpio_input(data->wp_pin, 1);
 168         if (data->vcc_pin)
 169                 at91_set_gpio_output(data->vcc_pin, 0);
 170
 171         /* CLK */
 172         at91_set_A_periph(AT91_PIN_PA2, 0);
 173
 174         /* CMD */
 175         at91_set_A_periph(AT91_PIN_PA1, 1);
 176
 177         /* DAT0, maybe DAT1..DAT3 */
 178         at91_set_A_periph(AT91_PIN_PA0, 1);
 179         if (data->wire4) {
 180                 at91_set_A_periph(AT91_PIN_PA3, 1);
 181                 at91_set_A_periph(AT91_PIN_PA4, 1);
 182                 at91_set_A_periph(AT91_PIN_PA5, 1);
 183         }
 184
 185         mmc_data = *data;
 186         platform_device_register(&at91sam9rl_mmc_device);
 187 }
 188 #else
 189 void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {}
 190 #endif
 191
 192
 193 /* --------------------------------------------------------------------
 194  *  NAND / SmartMedia
 195  * -------------------------------------------------------------------- */
 196
 197 #if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 198 static struct atmel_nand_data nand_data;
 199
 200 #define NAND_BASE       AT91_CHIPSELECT_3
 201
 202 static struct resource nand_resources[] = {
 203         [0] = {
 204                 .start  = NAND_BASE,
 205                 .end    = NAND_BASE + SZ_256M - 1,
 206                 .flags  = IORESOURCE_MEM,
 207         },
 208         [1] = {
 209                 .start  = AT91_BASE_SYS + AT91_ECC,
 210                 .end    = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
 211                 .flags  = IORESOURCE_MEM,
 212         }
 213 };
 214
 215 static struct platform_device atmel_nand_device = {
 216         .name           = "atmel_nand",
 217         .id             = -1,
 218         .dev            = {
 219                                 .platform_data  = &nand_data,
 220         },
 221         .resource       = nand_resources,
 222         .num_resources  = ARRAY_SIZE(nand_resources),
 223 };
 224
 225 void __init at91_add_device_nand(struct atmel_nand_data *data)
 226 {
 227         unsigned long csa;
 228
 229         if (!data)
 230                 return;
 231
 232         csa = at91_sys_read(AT91_MATRIX_EBICSA);
 233         at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 234
 235         /* enable pin */
 236         if (data->enable_pin)
 237                 at91_set_gpio_output(data->enable_pin, 1);
 238
 239         /* ready/busy pin */
 240         if (data->rdy_pin)
 241                 at91_set_gpio_input(data->rdy_pin, 1);
 242
 243         /* card detect pin */
 244         if (data->det_pin)
 245                 at91_set_gpio_input(data->det_pin, 1);
 246
 247         at91_set_A_periph(AT91_PIN_PB4, 0);             /* NANDOE */
 248         at91_set_A_periph(AT91_PIN_PB5, 0);             /* NANDWE */
 249
 250         nand_data = *data;
 251         platform_device_register(&atmel_nand_device);
 252 }
 253
 254 #else
 255 void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 256 #endif
 257
 258
 259 /* --------------------------------------------------------------------
 260  *  TWI (i2c)
 261  * -------------------------------------------------------------------- */
 262
 263 /*
 264  * Prefer the GPIO code since the TWI controller isn't robust
 265  * (gets overruns and underruns under load) and can only issue
 266  * repeated STARTs in one scenario (the driver doesn't yet handle them).
 267  */
 268 #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 269
 270 static struct i2c_gpio_platform_data pdata = {
 271         .sda_pin                = AT91_PIN_PA23,
 272         .sda_is_open_drain      = 1,
 273         .scl_pin                = AT91_PIN_PA24,
 274         .scl_is_open_drain      = 1,
 275         .udelay                 = 2,            /* ~100 kHz */
 276 };
 277
 278 static struct platform_device at91sam9rl_twi_device = {
 279         .name                   = "i2c-gpio",
 280         .id                     = -1,
 281         .dev.platform_data      = &pdata,
 282 };
 283
 284 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 285 {
 286         at91_set_GPIO_periph(AT91_PIN_PA23, 1);         /* TWD (SDA) */
 287         at91_set_multi_drive(AT91_PIN_PA23, 1);
 288
 289         at91_set_GPIO_periph(AT91_PIN_PA24, 1);         /* TWCK (SCL) */
 290         at91_set_multi_drive(AT91_PIN_PA24, 1);
 291
 292         i2c_register_board_info(0, devices, nr_devices);
 293         platform_device_register(&at91sam9rl_twi_device);
 294 }
 295
 296 #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 297
 298 static struct resource twi_resources[] = {
 299         [0] = {
 300                 .start  = AT91SAM9RL_BASE_TWI0,
 301                 .end    = AT91SAM9RL_BASE_TWI0 + SZ_16K - 1,
 302                 .flags  = IORESOURCE_MEM,
 303         },
 304         [1] = {
 305                 .start  = AT91SAM9RL_ID_TWI0,
 306                 .end    = AT91SAM9RL_ID_TWI0,
 307                 .flags  = IORESOURCE_IRQ,
 308         },
 309 };
 310
 311 static struct platform_device at91sam9rl_twi_device = {
 312         .name           = "at91_i2c",
 313         .id             = -1,
 314         .resource       = twi_resources,
 315         .num_resources  = ARRAY_SIZE(twi_resources),
 316 };
 317
 318 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
 319 {
 320         /* pins used for TWI interface */
 321         at91_set_A_periph(AT91_PIN_PA23, 0);            /* TWD */
 322         at91_set_multi_drive(AT91_PIN_PA23, 1);
 323
 324         at91_set_A_periph(AT91_PIN_PA24, 0);            /* TWCK */
 325         at91_set_multi_drive(AT91_PIN_PA24, 1);
 326
 327         i2c_register_board_info(0, devices, nr_devices);
 328         platform_device_register(&at91sam9rl_twi_device);
 329 }
 330 #else
 331 void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
 332 #endif
 333
 334
 335 /* --------------------------------------------------------------------
 336  *  SPI
 337  * -------------------------------------------------------------------- */
 338
 339 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 340 static u64 spi_dmamask = DMA_BIT_MASK(32);
 341
 342 static struct resource spi_resources[] = {
 343         [0] = {
 344                 .start  = AT91SAM9RL_BASE_SPI,
 345                 .end    = AT91SAM9RL_BASE_SPI + SZ_16K - 1,
 346                 .flags  = IORESOURCE_MEM,
 347         },
 348         [1] = {
 349                 .start  = AT91SAM9RL_ID_SPI,
 350                 .end    = AT91SAM9RL_ID_SPI,
 351                 .flags  = IORESOURCE_IRQ,
 352         },
 353 };
 354
 355 static struct platform_device at91sam9rl_spi_device = {
 356         .name           = "atmel_spi",
 357         .id             = 0,
 358         .dev            = {
 359                                 .dma_mask               = &spi_dmamask,
 360                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 361         },
 362         .resource       = spi_resources,
 363         .num_resources  = ARRAY_SIZE(spi_resources),
 364 };
 365
 366 static const unsigned spi_standard_cs[4] = { AT91_PIN_PA28, AT91_PIN_PB7, AT91_PIN_PD8, AT91_PIN_PD9 };
 367
 368
 369 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 370 {
 371         int i;
 372         unsigned long cs_pin;
 373
 374         at91_set_A_periph(AT91_PIN_PA25, 0);    /* MISO */
 375         at91_set_A_periph(AT91_PIN_PA26, 0);    /* MOSI */
 376         at91_set_A_periph(AT91_PIN_PA27, 0);    /* SPCK */
 377
 378         /* Enable SPI chip-selects */
 379         for (i = 0; i < nr_devices; i++) {
 380                 if (devices[i].controller_data)
 381                         cs_pin = (unsigned long) devices[i].controller_data;
 382                 else
 383                         cs_pin = spi_standard_cs[devices[i].chip_select];
 384
 385                 /* enable chip-select pin */
 386                 at91_set_gpio_output(cs_pin, 1);
 387
 388                 /* pass chip-select pin to driver */
 389                 devices[i].controller_data = (void *) cs_pin;
 390         }
 391
 392         spi_register_board_info(devices, nr_devices);
 393         platform_device_register(&at91sam9rl_spi_device);
 394 }
 395 #else
 396 void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 397 #endif
 398
 399
 400 /* --------------------------------------------------------------------
 401  *  LCD Controller
 402  * -------------------------------------------------------------------- */
 403
 404 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 405 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 406 static struct atmel_lcdfb_info lcdc_data;
 407
 408 static struct resource lcdc_resources[] = {
 409         [0] = {
 410                 .start  = AT91SAM9RL_LCDC_BASE,
 411                 .end    = AT91SAM9RL_LCDC_BASE + SZ_4K - 1,
 412                 .flags  = IORESOURCE_MEM,
 413         },
 414         [1] = {
 415                 .start  = AT91SAM9RL_ID_LCDC,
 416                 .end    = AT91SAM9RL_ID_LCDC,
 417                 .flags  = IORESOURCE_IRQ,
 418         },
 419 };
 420
 421 static struct platform_device at91_lcdc_device = {
 422         .name           = "atmel_lcdfb",
 423         .id             = 0,
 424         .dev            = {
 425                                 .dma_mask               = &lcdc_dmamask,
 426                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 427                                 .platform_data          = &lcdc_data,
 428         },
 429         .resource       = lcdc_resources,
 430         .num_resources  = ARRAY_SIZE(lcdc_resources),
 431 };
 432
 433 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 434 {
 435         if (!data) {
 436                 return;
 437         }
 438
 439         at91_set_B_periph(AT91_PIN_PC1, 0);     /* LCDPWR */
 440         at91_set_A_periph(AT91_PIN_PC5, 0);     /* LCDHSYNC */
 441         at91_set_A_periph(AT91_PIN_PC6, 0);     /* LCDDOTCK */
 442         at91_set_A_periph(AT91_PIN_PC7, 0);     /* LCDDEN */
 443         at91_set_A_periph(AT91_PIN_PC3, 0);     /* LCDCC */
 444         at91_set_B_periph(AT91_PIN_PC9, 0);     /* LCDD3 */
 445         at91_set_B_periph(AT91_PIN_PC10, 0);    /* LCDD4 */
 446         at91_set_B_periph(AT91_PIN_PC11, 0);    /* LCDD5 */
 447         at91_set_B_periph(AT91_PIN_PC12, 0);    /* LCDD6 */
 448         at91_set_B_periph(AT91_PIN_PC13, 0);    /* LCDD7 */
 449         at91_set_B_periph(AT91_PIN_PC15, 0);    /* LCDD11 */
 450         at91_set_B_periph(AT91_PIN_PC16, 0);    /* LCDD12 */
 451         at91_set_B_periph(AT91_PIN_PC17, 0);    /* LCDD13 */
 452         at91_set_B_periph(AT91_PIN_PC18, 0);    /* LCDD14 */
 453         at91_set_B_periph(AT91_PIN_PC19, 0);    /* LCDD15 */
 454         at91_set_B_periph(AT91_PIN_PC20, 0);    /* LCDD18 */
 455         at91_set_B_periph(AT91_PIN_PC21, 0);    /* LCDD19 */
 456         at91_set_B_periph(AT91_PIN_PC22, 0);    /* LCDD20 */
 457         at91_set_B_periph(AT91_PIN_PC23, 0);    /* LCDD21 */
 458         at91_set_B_periph(AT91_PIN_PC24, 0);    /* LCDD22 */
 459         at91_set_B_periph(AT91_PIN_PC25, 0);    /* LCDD23 */
 460
 461         lcdc_data = *data;
 462         platform_device_register(&at91_lcdc_device);
 463 }
 464 #else
 465 void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 466 #endif
 467
 468
 469 /* --------------------------------------------------------------------
 470  *  Timer/Counter block
 471  * -------------------------------------------------------------------- */
 472
 473 #ifdef CONFIG_ATMEL_TCLIB
 474
 475 static struct resource tcb_resources[] = {
 476         [0] = {
 477                 .start  = AT91SAM9RL_BASE_TCB0,
 478                 .end    = AT91SAM9RL_BASE_TCB0 + SZ_16K - 1,
 479                 .flags  = IORESOURCE_MEM,
 480         },
 481         [1] = {
 482                 .start  = AT91SAM9RL_ID_TC0,
 483                 .end    = AT91SAM9RL_ID_TC0,
 484                 .flags  = IORESOURCE_IRQ,
 485         },
 486         [2] = {
 487                 .start  = AT91SAM9RL_ID_TC1,
 488                 .end    = AT91SAM9RL_ID_TC1,
 489                 .flags  = IORESOURCE_IRQ,
 490         },
 491         [3] = {
 492                 .start  = AT91SAM9RL_ID_TC2,
 493                 .end    = AT91SAM9RL_ID_TC2,
 494                 .flags  = IORESOURCE_IRQ,
 495         },
 496 };
 497
 498 static struct platform_device at91sam9rl_tcb_device = {
 499         .name           = "atmel_tcb",
 500         .id             = 0,
 501         .resource       = tcb_resources,
 502         .num_resources  = ARRAY_SIZE(tcb_resources),
 503 };
 504
 505 static void __init at91_add_device_tc(void)
 506 {
 507         /* this chip has a separate clock and irq for each TC channel */
 508         at91_clock_associate("tc0_clk", &at91sam9rl_tcb_device.dev, "t0_clk");
 509         at91_clock_associate("tc1_clk", &at91sam9rl_tcb_device.dev, "t1_clk");
 510         at91_clock_associate("tc2_clk", &at91sam9rl_tcb_device.dev, "t2_clk");
 511         platform_device_register(&at91sam9rl_tcb_device);
 512 }
 513 #else
 514 static void __init at91_add_device_tc(void) { }
 515 #endif
 516
 517
 518 /* --------------------------------------------------------------------
 519  *  Touchscreen
 520  * -------------------------------------------------------------------- */
 521
 522 #if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
 523 static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
 524
 525 static struct resource tsadcc_resources[] = {
 526         [0] = {
 527                 .start  = AT91SAM9RL_BASE_TSC,
 528                 .end    = AT91SAM9RL_BASE_TSC + SZ_16K - 1,
 529                 .flags  = IORESOURCE_MEM,
 530         },
 531         [1] = {
 532                 .start  = AT91SAM9RL_ID_TSC,
 533                 .end    = AT91SAM9RL_ID_TSC,
 534                 .flags  = IORESOURCE_IRQ,
 535         }
 536 };
 537
 538 static struct platform_device at91sam9rl_tsadcc_device = {
 539         .name           = "atmel_tsadcc",
 540         .id             = -1,
 541         .dev            = {
 542                                 .dma_mask               = &tsadcc_dmamask,
 543                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 544         },
 545         .resource       = tsadcc_resources,
 546         .num_resources  = ARRAY_SIZE(tsadcc_resources),
 547 };
 548
 549 void __init at91_add_device_tsadcc(void)
 550 {
 551         at91_set_A_periph(AT91_PIN_PA17, 0);    /* AD0_XR */
 552         at91_set_A_periph(AT91_PIN_PA18, 0);    /* AD1_XL */
 553         at91_set_A_periph(AT91_PIN_PA19, 0);    /* AD2_YT */
 554         at91_set_A_periph(AT91_PIN_PA20, 0);    /* AD3_TB */
 555
 556         platform_device_register(&at91sam9rl_tsadcc_device);
 557 }
 558 #else
 559 void __init at91_add_device_tsadcc(void) {}
 560 #endif
 561
 562
 563 /* --------------------------------------------------------------------
 564  *  RTC
 565  * -------------------------------------------------------------------- */
 566
 567 #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
 568 static struct platform_device at91sam9rl_rtc_device = {
 569         .name           = "at91_rtc",
 570         .id             = -1,
 571         .num_resources  = 0,
 572 };
 573
 574 static void __init at91_add_device_rtc(void)
 575 {
 576         platform_device_register(&at91sam9rl_rtc_device);
 577 }
 578 #else
 579 static void __init at91_add_device_rtc(void) {}
 580 #endif
 581
 582
 583 /* --------------------------------------------------------------------
 584  *  RTT
 585  * -------------------------------------------------------------------- */
 586
 587 static struct resource rtt_resources[] = {
 588         {
 589                 .start  = AT91_BASE_SYS + AT91_RTT,
 590                 .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
 591                 .flags  = IORESOURCE_MEM,
 592         }
 593 };
 594
 595 static struct platform_device at91sam9rl_rtt_device = {
 596         .name           = "at91_rtt",
 597         .id             = 0,
 598         .resource       = rtt_resources,
 599         .num_resources  = ARRAY_SIZE(rtt_resources),
 600 };
 601
 602 static void __init at91_add_device_rtt(void)
 603 {
 604         platform_device_register(&at91sam9rl_rtt_device);
 605 }
 606
 607
 608 /* --------------------------------------------------------------------
 609  *  Watchdog
 610  * -------------------------------------------------------------------- */
 611
 612 #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE)
 613 static struct platform_device at91sam9rl_wdt_device = {
 614         .name           = "at91_wdt",
 615         .id             = -1,
 616         .num_resources  = 0,
 617 };
 618
 619 static void __init at91_add_device_watchdog(void)
 620 {
 621         platform_device_register(&at91sam9rl_wdt_device);
 622 }
 623 #else
 624 static void __init at91_add_device_watchdog(void) {}
 625 #endif
 626
 627
 628 /* --------------------------------------------------------------------
 629  *  PWM
 630  * --------------------------------------------------------------------*/
 631
 632 #if defined(CONFIG_ATMEL_PWM)
 633 static u32 pwm_mask;
 634
 635 static struct resource pwm_resources[] = {
 636         [0] = {
 637                 .start  = AT91SAM9RL_BASE_PWMC,
 638                 .end    = AT91SAM9RL_BASE_PWMC + SZ_16K - 1,
 639                 .flags  = IORESOURCE_MEM,
 640         },
 641         [1] = {
 642                 .start  = AT91SAM9RL_ID_PWMC,
 643                 .end    = AT91SAM9RL_ID_PWMC,
 644                 .flags  = IORESOURCE_IRQ,
 645         },
 646 };
 647
 648 static struct platform_device at91sam9rl_pwm0_device = {
 649         .name   = "atmel_pwm",
 650         .id     = -1,
 651         .dev    = {
 652                 .platform_data          = &pwm_mask,
 653         },
 654         .resource       = pwm_resources,
 655         .num_resources  = ARRAY_SIZE(pwm_resources),
 656 };
 657
 658 void __init at91_add_device_pwm(u32 mask)
 659 {
 660         if (mask & (1 << AT91_PWM0))
 661                 at91_set_B_periph(AT91_PIN_PB8, 1);     /* enable PWM0 */
 662
 663         if (mask & (1 << AT91_PWM1))
 664                 at91_set_B_periph(AT91_PIN_PB9, 1);     /* enable PWM1 */
 665
 666         if (mask & (1 << AT91_PWM2))
 667                 at91_set_B_periph(AT91_PIN_PD5, 1);     /* enable PWM2 */
 668
 669         if (mask & (1 << AT91_PWM3))
 670                 at91_set_B_periph(AT91_PIN_PD8, 1);     /* enable PWM3 */
 671
 672         pwm_mask = mask;
 673
 674         platform_device_register(&at91sam9rl_pwm0_device);
 675 }
 676 #else
 677 void __init at91_add_device_pwm(u32 mask) {}
 678 #endif
 679
 680
 681 /* --------------------------------------------------------------------
 682  *  SSC -- Synchronous Serial Controller
 683  * -------------------------------------------------------------------- */
 684
 685 #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
 686 static u64 ssc0_dmamask = DMA_BIT_MASK(32);
 687
 688 static struct resource ssc0_resources[] = {
 689         [0] = {
 690                 .start  = AT91SAM9RL_BASE_SSC0,
 691                 .end    = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1,
 692                 .flags  = IORESOURCE_MEM,
 693         },
 694         [1] = {
 695                 .start  = AT91SAM9RL_ID_SSC0,
 696                 .end    = AT91SAM9RL_ID_SSC0,
 697                 .flags  = IORESOURCE_IRQ,
 698         },
 699 };
 700
 701 static struct platform_device at91sam9rl_ssc0_device = {
 702         .name   = "ssc",
 703         .id     = 0,
 704         .dev    = {
 705                 .dma_mask               = &ssc0_dmamask,
 706                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 707         },
 708         .resource       = ssc0_resources,
 709         .num_resources  = ARRAY_SIZE(ssc0_resources),
 710 };
 711
 712 static inline void configure_ssc0_pins(unsigned pins)
 713 {
 714         if (pins & ATMEL_SSC_TF)
 715                 at91_set_A_periph(AT91_PIN_PC0, 1);
 716         if (pins & ATMEL_SSC_TK)
 717                 at91_set_A_periph(AT91_PIN_PC1, 1);
 718         if (pins & ATMEL_SSC_TD)
 719                 at91_set_A_periph(AT91_PIN_PA15, 1);
 720         if (pins & ATMEL_SSC_RD)
 721                 at91_set_A_periph(AT91_PIN_PA16, 1);
 722         if (pins & ATMEL_SSC_RK)
 723                 at91_set_B_periph(AT91_PIN_PA10, 1);
 724         if (pins & ATMEL_SSC_RF)
 725                 at91_set_B_periph(AT91_PIN_PA22, 1);
 726 }
 727
 728 static u64 ssc1_dmamask = DMA_BIT_MASK(32);
 729
 730 static struct resource ssc1_resources[] = {
 731         [0] = {
 732                 .start  = AT91SAM9RL_BASE_SSC1,
 733                 .end    = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1,
 734                 .flags  = IORESOURCE_MEM,
 735         },
 736         [1] = {
 737                 .start  = AT91SAM9RL_ID_SSC1,
 738                 .end    = AT91SAM9RL_ID_SSC1,
 739                 .flags  = IORESOURCE_IRQ,
 740         },
 741 };
 742
 743 static struct platform_device at91sam9rl_ssc1_device = {
 744         .name   = "ssc",
 745         .id     = 1,
 746         .dev    = {
 747                 .dma_mask               = &ssc1_dmamask,
 748                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 749         },
 750         .resource       = ssc1_resources,
 751         .num_resources  = ARRAY_SIZE(ssc1_resources),
 752 };
 753
 754 static inline void configure_ssc1_pins(unsigned pins)
 755 {
 756         if (pins & ATMEL_SSC_TF)
 757                 at91_set_B_periph(AT91_PIN_PA29, 1);
 758         if (pins & ATMEL_SSC_TK)
 759                 at91_set_B_periph(AT91_PIN_PA30, 1);
 760         if (pins & ATMEL_SSC_TD)
 761                 at91_set_B_periph(AT91_PIN_PA13, 1);
 762         if (pins & ATMEL_SSC_RD)
 763                 at91_set_B_periph(AT91_PIN_PA14, 1);
 764         if (pins & ATMEL_SSC_RK)
 765                 at91_set_B_periph(AT91_PIN_PA9, 1);
 766         if (pins & ATMEL_SSC_RF)
 767                 at91_set_B_periph(AT91_PIN_PA8, 1);
 768 }
 769
 770 /*
 771  * SSC controllers are accessed through library code, instead of any
 772  * kind of all-singing/all-dancing driver.  For example one could be
 773  * used by a particular I2S audio codec's driver, while another one
 774  * on the same system might be used by a custom data capture driver.
 775  */
 776 void __init at91_add_device_ssc(unsigned id, unsigned pins)
 777 {
 778         struct platform_device *pdev;
 779
 780         /*
 781          * NOTE: caller is responsible for passing information matching
 782          * "pins" to whatever will be using each particular controller.
 783          */
 784         switch (id) {
 785         case AT91SAM9RL_ID_SSC0:
 786                 pdev = &at91sam9rl_ssc0_device;
 787                 configure_ssc0_pins(pins);
 788                 at91_clock_associate("ssc0_clk", &pdev->dev, "pclk");
 789                 break;
 790         case AT91SAM9RL_ID_SSC1:
 791                 pdev = &at91sam9rl_ssc1_device;
 792                 configure_ssc1_pins(pins);
 793                 at91_clock_associate("ssc1_clk", &pdev->dev, "pclk");
 794                 break;
 795         default:
 796                 return;
 797         }
 798
 799         platform_device_register(pdev);
 800 }
 801
 802 #else
 803 void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 804 #endif
 805
 806
 807 /* --------------------------------------------------------------------
 808  *  UART
 809  * -------------------------------------------------------------------- */
 810
 811 #if defined(CONFIG_SERIAL_ATMEL)
 812 static struct resource dbgu_resources[] = {
 813         [0] = {
 814                 .start  = AT91_VA_BASE_SYS + AT91_DBGU,
 815                 .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
 816                 .flags  = IORESOURCE_MEM,
 817         },
 818         [1] = {
 819                 .start  = AT91_ID_SYS,
 820                 .end    = AT91_ID_SYS,
 821                 .flags  = IORESOURCE_IRQ,
 822         },
 823 };
 824
 825 static struct atmel_uart_data dbgu_data = {
 826         .use_dma_tx     = 0,
 827         .use_dma_rx     = 0,            /* DBGU not capable of receive DMA */
 828         .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
 829 };
 830
 831 static u64 dbgu_dmamask = DMA_BIT_MASK(32);
 832
 833 static struct platform_device at91sam9rl_dbgu_device = {
 834         .name           = "atmel_usart",
 835         .id             = 0,
 836         .dev            = {
 837                                 .dma_mask               = &dbgu_dmamask,
 838                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 839                                 .platform_data          = &dbgu_data,
 840         },
 841         .resource       = dbgu_resources,
 842         .num_resources  = ARRAY_SIZE(dbgu_resources),
 843 };
 844
 845 static inline void configure_dbgu_pins(void)
 846 {
 847         at91_set_A_periph(AT91_PIN_PA21, 0);            /* DRXD */
 848         at91_set_A_periph(AT91_PIN_PA22, 1);            /* DTXD */
 849 }
 850
 851 static struct resource uart0_resources[] = {
 852         [0] = {
 853                 .start  = AT91SAM9RL_BASE_US0,
 854                 .end    = AT91SAM9RL_BASE_US0 + SZ_16K - 1,
 855                 .flags  = IORESOURCE_MEM,
 856         },
 857         [1] = {
 858                 .start  = AT91SAM9RL_ID_US0,
 859                 .end    = AT91SAM9RL_ID_US0,
 860                 .flags  = IORESOURCE_IRQ,
 861         },
 862 };
 863
 864 static struct atmel_uart_data uart0_data = {
 865         .use_dma_tx     = 1,
 866         .use_dma_rx     = 1,
 867 };
 868
 869 static u64 uart0_dmamask = DMA_BIT_MASK(32);
 870
 871 static struct platform_device at91sam9rl_uart0_device = {
 872         .name           = "atmel_usart",
 873         .id             = 1,
 874         .dev            = {
 875                                 .dma_mask               = &uart0_dmamask,
 876                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 877                                 .platform_data          = &uart0_data,
 878         },
 879         .resource       = uart0_resources,
 880         .num_resources  = ARRAY_SIZE(uart0_resources),
 881 };
 882
 883 static inline void configure_usart0_pins(unsigned pins)
 884 {
 885         at91_set_A_periph(AT91_PIN_PA6, 1);             /* TXD0 */
 886         at91_set_A_periph(AT91_PIN_PA7, 0);             /* RXD0 */
 887
 888         if (pins & ATMEL_UART_RTS)
 889                 at91_set_A_periph(AT91_PIN_PA9, 0);     /* RTS0 */
 890         if (pins & ATMEL_UART_CTS)
 891                 at91_set_A_periph(AT91_PIN_PA10, 0);    /* CTS0 */
 892         if (pins & ATMEL_UART_DSR)
 893                 at91_set_A_periph(AT91_PIN_PD14, 0);    /* DSR0 */
 894         if (pins & ATMEL_UART_DTR)
 895                 at91_set_A_periph(AT91_PIN_PD15, 0);    /* DTR0 */
 896         if (pins & ATMEL_UART_DCD)
 897                 at91_set_A_periph(AT91_PIN_PD16, 0);    /* DCD0 */
 898         if (pins & ATMEL_UART_RI)
 899                 at91_set_A_periph(AT91_PIN_PD17, 0);    /* RI0 */
 900 }
 901
 902 static struct resource uart1_resources[] = {
 903         [0] = {
 904                 .start  = AT91SAM9RL_BASE_US1,
 905                 .end    = AT91SAM9RL_BASE_US1 + SZ_16K - 1,
 906                 .flags  = IORESOURCE_MEM,
 907         },
 908         [1] = {
 909                 .start  = AT91SAM9RL_ID_US1,
 910                 .end    = AT91SAM9RL_ID_US1,
 911                 .flags  = IORESOURCE_IRQ,
 912         },
 913 };
 914
 915 static struct atmel_uart_data uart1_data = {
 916         .use_dma_tx     = 1,
 917         .use_dma_rx     = 1,
 918 };
 919
 920 static u64 uart1_dmamask = DMA_BIT_MASK(32);
 921
 922 static struct platform_device at91sam9rl_uart1_device = {
 923         .name           = "atmel_usart",
 924         .id             = 2,
 925         .dev            = {
 926                                 .dma_mask               = &uart1_dmamask,
 927                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 928                                 .platform_data          = &uart1_data,
 929         },
 930         .resource       = uart1_resources,
 931         .num_resources  = ARRAY_SIZE(uart1_resources),
 932 };
 933
 934 static inline void configure_usart1_pins(unsigned pins)
 935 {
 936         at91_set_A_periph(AT91_PIN_PA11, 1);            /* TXD1 */
 937         at91_set_A_periph(AT91_PIN_PA12, 0);            /* RXD1 */
 938
 939         if (pins & ATMEL_UART_RTS)
 940                 at91_set_B_periph(AT91_PIN_PA18, 0);    /* RTS1 */
 941         if (pins & ATMEL_UART_CTS)
 942                 at91_set_B_periph(AT91_PIN_PA19, 0);    /* CTS1 */
 943 }
 944
 945 static struct resource uart2_resources[] = {
 946         [0] = {
 947                 .start  = AT91SAM9RL_BASE_US2,
 948                 .end    = AT91SAM9RL_BASE_US2 + SZ_16K - 1,
 949                 .flags  = IORESOURCE_MEM,
 950         },
 951         [1] = {
 952                 .start  = AT91SAM9RL_ID_US2,
 953                 .end    = AT91SAM9RL_ID_US2,
 954                 .flags  = IORESOURCE_IRQ,
 955         },
 956 };
 957
 958 static struct atmel_uart_data uart2_data = {
 959         .use_dma_tx     = 1,
 960         .use_dma_rx     = 1,
 961 };
 962
 963 static u64 uart2_dmamask = DMA_BIT_MASK(32);
 964
 965 static struct platform_device at91sam9rl_uart2_device = {
 966         .name           = "atmel_usart",
 967         .id             = 3,
 968         .dev            = {
 969                                 .dma_mask               = &uart2_dmamask,
 970                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 971                                 .platform_data          = &uart2_data,
 972         },
 973         .resource       = uart2_resources,
 974         .num_resources  = ARRAY_SIZE(uart2_resources),
 975 };
 976
 977 static inline void configure_usart2_pins(unsigned pins)
 978 {
 979         at91_set_A_periph(AT91_PIN_PA13, 1);            /* TXD2 */
 980         at91_set_A_periph(AT91_PIN_PA14, 0);            /* RXD2 */
 981
 982         if (pins & ATMEL_UART_RTS)
 983                 at91_set_A_periph(AT91_PIN_PA29, 0);    /* RTS2 */
 984         if (pins & ATMEL_UART_CTS)
 985                 at91_set_A_periph(AT91_PIN_PA30, 0);    /* CTS2 */
 986 }
 987
 988 static struct resource uart3_resources[] = {
 989         [0] = {
 990                 .start  = AT91SAM9RL_BASE_US3,
 991                 .end    = AT91SAM9RL_BASE_US3 + SZ_16K - 1,
 992                 .flags  = IORESOURCE_MEM,
 993         },
 994         [1] = {
 995                 .start  = AT91SAM9RL_ID_US3,
 996                 .end    = AT91SAM9RL_ID_US3,
 997                 .flags  = IORESOURCE_IRQ,
 998         },
 999 };
1000
1001 static struct atmel_uart_data uart3_data = {
1002         .use_dma_tx     = 1,
1003         .use_dma_rx     = 1,
1004 };
1005
1006 static u64 uart3_dmamask = DMA_BIT_MASK(32);
1007
1008 static struct platform_device at91sam9rl_uart3_device = {
1009         .name           = "atmel_usart",
1010         .id             = 4,
1011         .dev            = {
1012                                 .dma_mask               = &uart3_dmamask,
1013                                 .coherent_dma_mask      = DMA_BIT_MASK(32),
1014                                 .platform_data          = &uart3_data,
1015         },
1016         .resource       = uart3_resources,
1017         .num_resources  = ARRAY_SIZE(uart3_resources),
1018 };
1019
1020 static inline void configure_usart3_pins(unsigned pins)
1021 {
1022         at91_set_A_periph(AT91_PIN_PB0, 1);             /* TXD3 */
1023         at91_set_A_periph(AT91_PIN_PB1, 0);             /* RXD3 */
1024
1025         if (pins & ATMEL_UART_RTS)
1026                 at91_set_B_periph(AT91_PIN_PD4, 0);     /* RTS3 */
1027         if (pins & ATMEL_UART_CTS)
1028                 at91_set_B_periph(AT91_PIN_PD3, 0);     /* CTS3 */
1029 }
1030
1031 static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
1032 struct platform_device *atmel_default_console_device;   /* the serial console device */
1033
1034 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1035 {
1036         struct platform_device *pdev;
1037
1038         switch (id) {
1039                 case 0:         /* DBGU */
1040                         pdev = &at91sam9rl_dbgu_device;
1041                         configure_dbgu_pins();
1042                         at91_clock_associate("mck", &pdev->dev, "usart");
1043                         break;
1044                 case AT91SAM9RL_ID_US0:
1045                         pdev = &at91sam9rl_uart0_device;
1046                         configure_usart0_pins(pins);
1047                         at91_clock_associate("usart0_clk", &pdev->dev, "usart");
1048                         break;
1049                 case AT91SAM9RL_ID_US1:
1050                         pdev = &at91sam9rl_uart1_device;
1051                         configure_usart1_pins(pins);
1052                         at91_clock_associate("usart1_clk", &pdev->dev, "usart");
1053                         break;
1054                 case AT91SAM9RL_ID_US2:
1055                         pdev = &at91sam9rl_uart2_device;
1056                         configure_usart2_pins(pins);
1057                         at91_clock_associate("usart2_clk", &pdev->dev, "usart");
1058                         break;
1059                 case AT91SAM9RL_ID_US3:
1060                         pdev = &at91sam9rl_uart3_device;
1061                         configure_usart3_pins(pins);
1062                         at91_clock_associate("usart3_clk", &pdev->dev, "usart");
1063                         break;
1064                 default:
1065                         return;
1066         }
1067         pdev->id = portnr;              /* update to mapped ID */
1068
1069         if (portnr < ATMEL_MAX_UART)
1070                 at91_uarts[portnr] = pdev;
1071 }
1072
1073 void __init at91_set_serial_console(unsigned portnr)
1074 {
1075         if (portnr < ATMEL_MAX_UART)
1076                 atmel_default_console_device = at91_uarts[portnr];
1077 }
1078
1079 void __init at91_add_device_serial(void)
1080 {
1081         int i;
1082
1083         for (i = 0; i < ATMEL_MAX_UART; i++) {
1084                 if (at91_uarts[i])
1085                         platform_device_register(at91_uarts[i]);
1086         }
1087
1088         if (!atmel_default_console_device)
1089                 printk(KERN_INFO "AT91: No default serial console defined.\n");
1090 }
1091 #else
1092 void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1093 void __init at91_set_serial_console(unsigned portnr) {}
1094 void __init at91_add_device_serial(void) {}
1095 #endif
1096
1097
1098 /* -------------------------------------------------------------------- */
1099
1100 /*
1101  * These devices are always present and don't need any board-specific
1102  * setup.
1103  */
1104 static int __init at91_add_standard_devices(void)
1105 {
1106         at91_add_device_rtc();
1107         at91_add_device_rtt();
1108         at91_add_device_watchdog();
1109         at91_add_device_tc();
1110         return 0;
1111 }
1112
1113 arch_initcall(at91_add_standard_devices);