linux/arch/arm/mach-at91/at91sam9g45_devices.c
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   1/*
   2 *  On-Chip devices setup code for the AT91SAM9G45 family
   3 *
   4 *  Copyright (C) 2009 Atmel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 */
  12#include <asm/mach/arch.h>
  13#include <asm/mach/map.h>
  14
  15#include <linux/dma-mapping.h>
  16#include <linux/platform_device.h>
  17#include <linux/i2c-gpio.h>
  18#include <linux/atmel-mci.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/at91sam9g45.h>
  26#include <mach/at91sam9g45_matrix.h>
  27#include <mach/at91sam9_smc.h>
  28#include <mach/at_hdmac.h>
  29#include <mach/atmel-mci.h>
  30
  31#include "generic.h"
  32
  33
  34/* --------------------------------------------------------------------
  35 *  HDMAC - AHB DMA Controller
  36 * -------------------------------------------------------------------- */
  37
  38#if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
  39static u64 hdmac_dmamask = DMA_BIT_MASK(32);
  40
  41static struct at_dma_platform_data atdma_pdata = {
  42        .nr_channels    = 8,
  43};
  44
  45static struct resource hdmac_resources[] = {
  46        [0] = {
  47                .start  = AT91_BASE_SYS + AT91_DMA,
  48                .end    = AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
  49                .flags  = IORESOURCE_MEM,
  50        },
  51        [1] = {
  52                .start  = AT91SAM9G45_ID_DMA,
  53                .end    = AT91SAM9G45_ID_DMA,
  54                .flags  = IORESOURCE_IRQ,
  55        },
  56};
  57
  58static struct platform_device at_hdmac_device = {
  59        .name           = "at_hdmac",
  60        .id             = -1,
  61        .dev            = {
  62                                .dma_mask               = &hdmac_dmamask,
  63                                .coherent_dma_mask      = DMA_BIT_MASK(32),
  64                                .platform_data          = &atdma_pdata,
  65        },
  66        .resource       = hdmac_resources,
  67        .num_resources  = ARRAY_SIZE(hdmac_resources),
  68};
  69
  70void __init at91_add_device_hdmac(void)
  71{
  72        dma_cap_set(DMA_MEMCPY, atdma_pdata.cap_mask);
  73        dma_cap_set(DMA_SLAVE, atdma_pdata.cap_mask);
  74        platform_device_register(&at_hdmac_device);
  75}
  76#else
  77void __init at91_add_device_hdmac(void) {}
  78#endif
  79
  80
  81/* --------------------------------------------------------------------
  82 *  USB Host (OHCI)
  83 * -------------------------------------------------------------------- */
  84
  85#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
  86static u64 ohci_dmamask = DMA_BIT_MASK(32);
  87static struct at91_usbh_data usbh_ohci_data;
  88
  89static struct resource usbh_ohci_resources[] = {
  90        [0] = {
  91                .start  = AT91SAM9G45_OHCI_BASE,
  92                .end    = AT91SAM9G45_OHCI_BASE + SZ_1M - 1,
  93                .flags  = IORESOURCE_MEM,
  94        },
  95        [1] = {
  96                .start  = AT91SAM9G45_ID_UHPHS,
  97                .end    = AT91SAM9G45_ID_UHPHS,
  98                .flags  = IORESOURCE_IRQ,
  99        },
 100};
 101
 102static struct platform_device at91_usbh_ohci_device = {
 103        .name           = "at91_ohci",
 104        .id             = -1,
 105        .dev            = {
 106                                .dma_mask               = &ohci_dmamask,
 107                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 108                                .platform_data          = &usbh_ohci_data,
 109        },
 110        .resource       = usbh_ohci_resources,
 111        .num_resources  = ARRAY_SIZE(usbh_ohci_resources),
 112};
 113
 114void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data)
 115{
 116        int i;
 117
 118        if (!data)
 119                return;
 120
 121        /* Enable VBus control for UHP ports */
 122        for (i = 0; i < data->ports; i++) {
 123                if (data->vbus_pin[i])
 124                        at91_set_gpio_output(data->vbus_pin[i], 0);
 125        }
 126
 127        usbh_ohci_data = *data;
 128        platform_device_register(&at91_usbh_ohci_device);
 129}
 130#else
 131void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data) {}
 132#endif
 133
 134
 135/* --------------------------------------------------------------------
 136 *  USB Host HS (EHCI)
 137 *  Needs an OHCI host for low and full speed management
 138 * -------------------------------------------------------------------- */
 139
 140#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE)
 141static u64 ehci_dmamask = DMA_BIT_MASK(32);
 142static struct at91_usbh_data usbh_ehci_data;
 143
 144static struct resource usbh_ehci_resources[] = {
 145        [0] = {
 146                .start  = AT91SAM9G45_EHCI_BASE,
 147                .end    = AT91SAM9G45_EHCI_BASE + SZ_1M - 1,
 148                .flags  = IORESOURCE_MEM,
 149        },
 150        [1] = {
 151                .start  = AT91SAM9G45_ID_UHPHS,
 152                .end    = AT91SAM9G45_ID_UHPHS,
 153                .flags  = IORESOURCE_IRQ,
 154        },
 155};
 156
 157static struct platform_device at91_usbh_ehci_device = {
 158        .name           = "atmel-ehci",
 159        .id             = -1,
 160        .dev            = {
 161                                .dma_mask               = &ehci_dmamask,
 162                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 163                                .platform_data          = &usbh_ehci_data,
 164        },
 165        .resource       = usbh_ehci_resources,
 166        .num_resources  = ARRAY_SIZE(usbh_ehci_resources),
 167};
 168
 169void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data)
 170{
 171        int i;
 172
 173        if (!data)
 174                return;
 175
 176        /* Enable VBus control for UHP ports */
 177        for (i = 0; i < data->ports; i++) {
 178                if (data->vbus_pin[i])
 179                        at91_set_gpio_output(data->vbus_pin[i], 0);
 180        }
 181
 182        usbh_ehci_data = *data;
 183        platform_device_register(&at91_usbh_ehci_device);
 184}
 185#else
 186void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data) {}
 187#endif
 188
 189
 190/* --------------------------------------------------------------------
 191 *  USB HS Device (Gadget)
 192 * -------------------------------------------------------------------- */
 193
 194#if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
 195static struct resource usba_udc_resources[] = {
 196        [0] = {
 197                .start  = AT91SAM9G45_UDPHS_FIFO,
 198                .end    = AT91SAM9G45_UDPHS_FIFO + SZ_512K - 1,
 199                .flags  = IORESOURCE_MEM,
 200        },
 201        [1] = {
 202                .start  = AT91SAM9G45_BASE_UDPHS,
 203                .end    = AT91SAM9G45_BASE_UDPHS + SZ_1K - 1,
 204                .flags  = IORESOURCE_MEM,
 205        },
 206        [2] = {
 207                .start  = AT91SAM9G45_ID_UDPHS,
 208                .end    = AT91SAM9G45_ID_UDPHS,
 209                .flags  = IORESOURCE_IRQ,
 210        },
 211};
 212
 213#define EP(nam, idx, maxpkt, maxbk, dma, isoc)                  \
 214        [idx] = {                                               \
 215                .name           = nam,                          \
 216                .index          = idx,                          \
 217                .fifo_size      = maxpkt,                       \
 218                .nr_banks       = maxbk,                        \
 219                .can_dma        = dma,                          \
 220                .can_isoc       = isoc,                         \
 221        }
 222
 223static struct usba_ep_data usba_udc_ep[] __initdata = {
 224        EP("ep0", 0, 64, 1, 0, 0),
 225        EP("ep1", 1, 1024, 2, 1, 1),
 226        EP("ep2", 2, 1024, 2, 1, 1),
 227        EP("ep3", 3, 1024, 3, 1, 0),
 228        EP("ep4", 4, 1024, 3, 1, 0),
 229        EP("ep5", 5, 1024, 3, 1, 1),
 230        EP("ep6", 6, 1024, 3, 1, 1),
 231};
 232
 233#undef EP
 234
 235/*
 236 * pdata doesn't have room for any endpoints, so we need to
 237 * append room for the ones we need right after it.
 238 */
 239static struct {
 240        struct usba_platform_data pdata;
 241        struct usba_ep_data ep[7];
 242} usba_udc_data;
 243
 244static struct platform_device at91_usba_udc_device = {
 245        .name           = "atmel_usba_udc",
 246        .id             = -1,
 247        .dev            = {
 248                                .platform_data  = &usba_udc_data.pdata,
 249        },
 250        .resource       = usba_udc_resources,
 251        .num_resources  = ARRAY_SIZE(usba_udc_resources),
 252};
 253
 254void __init at91_add_device_usba(struct usba_platform_data *data)
 255{
 256        usba_udc_data.pdata.vbus_pin = -EINVAL;
 257        usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
 258        memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
 259
 260        if (data && data->vbus_pin > 0) {
 261                at91_set_gpio_input(data->vbus_pin, 0);
 262                at91_set_deglitch(data->vbus_pin, 1);
 263                usba_udc_data.pdata.vbus_pin = data->vbus_pin;
 264        }
 265
 266        /* Pullup pin is handled internally by USB device peripheral */
 267
 268        platform_device_register(&at91_usba_udc_device);
 269}
 270#else
 271void __init at91_add_device_usba(struct usba_platform_data *data) {}
 272#endif
 273
 274
 275/* --------------------------------------------------------------------
 276 *  Ethernet
 277 * -------------------------------------------------------------------- */
 278
 279#if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 280static u64 eth_dmamask = DMA_BIT_MASK(32);
 281static struct at91_eth_data eth_data;
 282
 283static struct resource eth_resources[] = {
 284        [0] = {
 285                .start  = AT91SAM9G45_BASE_EMAC,
 286                .end    = AT91SAM9G45_BASE_EMAC + SZ_16K - 1,
 287                .flags  = IORESOURCE_MEM,
 288        },
 289        [1] = {
 290                .start  = AT91SAM9G45_ID_EMAC,
 291                .end    = AT91SAM9G45_ID_EMAC,
 292                .flags  = IORESOURCE_IRQ,
 293        },
 294};
 295
 296static struct platform_device at91sam9g45_eth_device = {
 297        .name           = "macb",
 298        .id             = -1,
 299        .dev            = {
 300                                .dma_mask               = &eth_dmamask,
 301                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 302                                .platform_data          = &eth_data,
 303        },
 304        .resource       = eth_resources,
 305        .num_resources  = ARRAY_SIZE(eth_resources),
 306};
 307
 308void __init at91_add_device_eth(struct at91_eth_data *data)
 309{
 310        if (!data)
 311                return;
 312
 313        if (data->phy_irq_pin) {
 314                at91_set_gpio_input(data->phy_irq_pin, 0);
 315                at91_set_deglitch(data->phy_irq_pin, 1);
 316        }
 317
 318        /* Pins used for MII and RMII */
 319        at91_set_A_periph(AT91_PIN_PA17, 0);    /* ETXCK_EREFCK */
 320        at91_set_A_periph(AT91_PIN_PA15, 0);    /* ERXDV */
 321        at91_set_A_periph(AT91_PIN_PA12, 0);    /* ERX0 */
 322        at91_set_A_periph(AT91_PIN_PA13, 0);    /* ERX1 */
 323        at91_set_A_periph(AT91_PIN_PA16, 0);    /* ERXER */
 324        at91_set_A_periph(AT91_PIN_PA14, 0);    /* ETXEN */
 325        at91_set_A_periph(AT91_PIN_PA10, 0);    /* ETX0 */
 326        at91_set_A_periph(AT91_PIN_PA11, 0);    /* ETX1 */
 327        at91_set_A_periph(AT91_PIN_PA19, 0);    /* EMDIO */
 328        at91_set_A_periph(AT91_PIN_PA18, 0);    /* EMDC */
 329
 330        if (!data->is_rmii) {
 331                at91_set_B_periph(AT91_PIN_PA29, 0);    /* ECRS */
 332                at91_set_B_periph(AT91_PIN_PA30, 0);    /* ECOL */
 333                at91_set_B_periph(AT91_PIN_PA8,  0);    /* ERX2 */
 334                at91_set_B_periph(AT91_PIN_PA9,  0);    /* ERX3 */
 335                at91_set_B_periph(AT91_PIN_PA28, 0);    /* ERXCK */
 336                at91_set_B_periph(AT91_PIN_PA6,  0);    /* ETX2 */
 337                at91_set_B_periph(AT91_PIN_PA7,  0);    /* ETX3 */
 338                at91_set_B_periph(AT91_PIN_PA27, 0);    /* ETXER */
 339        }
 340
 341        eth_data = *data;
 342        platform_device_register(&at91sam9g45_eth_device);
 343}
 344#else
 345void __init at91_add_device_eth(struct at91_eth_data *data) {}
 346#endif
 347
 348
 349/* --------------------------------------------------------------------
 350 *  MMC / SD
 351 * -------------------------------------------------------------------- */
 352
 353#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
 354static u64 mmc_dmamask = DMA_BIT_MASK(32);
 355static struct mci_platform_data mmc0_data, mmc1_data;
 356
 357static struct resource mmc0_resources[] = {
 358        [0] = {
 359                .start  = AT91SAM9G45_BASE_MCI0,
 360                .end    = AT91SAM9G45_BASE_MCI0 + SZ_16K - 1,
 361                .flags  = IORESOURCE_MEM,
 362        },
 363        [1] = {
 364                .start  = AT91SAM9G45_ID_MCI0,
 365                .end    = AT91SAM9G45_ID_MCI0,
 366                .flags  = IORESOURCE_IRQ,
 367        },
 368};
 369
 370static struct platform_device at91sam9g45_mmc0_device = {
 371        .name           = "atmel_mci",
 372        .id             = 0,
 373        .dev            = {
 374                                .dma_mask               = &mmc_dmamask,
 375                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 376                                .platform_data          = &mmc0_data,
 377        },
 378        .resource       = mmc0_resources,
 379        .num_resources  = ARRAY_SIZE(mmc0_resources),
 380};
 381
 382static struct resource mmc1_resources[] = {
 383        [0] = {
 384                .start  = AT91SAM9G45_BASE_MCI1,
 385                .end    = AT91SAM9G45_BASE_MCI1 + SZ_16K - 1,
 386                .flags  = IORESOURCE_MEM,
 387        },
 388        [1] = {
 389                .start  = AT91SAM9G45_ID_MCI1,
 390                .end    = AT91SAM9G45_ID_MCI1,
 391                .flags  = IORESOURCE_IRQ,
 392        },
 393};
 394
 395static struct platform_device at91sam9g45_mmc1_device = {
 396        .name           = "atmel_mci",
 397        .id             = 1,
 398        .dev            = {
 399                                .dma_mask               = &mmc_dmamask,
 400                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 401                                .platform_data          = &mmc1_data,
 402        },
 403        .resource       = mmc1_resources,
 404        .num_resources  = ARRAY_SIZE(mmc1_resources),
 405};
 406
 407/* Consider only one slot : slot 0 */
 408void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
 409{
 410
 411        if (!data)
 412                return;
 413
 414        /* Must have at least one usable slot */
 415        if (!data->slot[0].bus_width)
 416                return;
 417
 418#if defined(CONFIG_AT_HDMAC) || defined(CONFIG_AT_HDMAC_MODULE)
 419        {
 420        struct at_dma_slave     *atslave;
 421        struct mci_dma_data     *alt_atslave;
 422
 423        alt_atslave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL);
 424        atslave = &alt_atslave->sdata;
 425
 426        /* DMA slave channel configuration */
 427        atslave->dma_dev = &at_hdmac_device.dev;
 428        atslave->reg_width = AT_DMA_SLAVE_WIDTH_32BIT;
 429        atslave->cfg = ATC_FIFOCFG_HALFFIFO
 430                        | ATC_SRC_H2SEL_HW | ATC_DST_H2SEL_HW;
 431        atslave->ctrla = ATC_SCSIZE_16 | ATC_DCSIZE_16;
 432        if (mmc_id == 0)        /* MCI0 */
 433                atslave->cfg |= ATC_SRC_PER(AT_DMA_ID_MCI0)
 434                              | ATC_DST_PER(AT_DMA_ID_MCI0);
 435
 436        else                    /* MCI1 */
 437                atslave->cfg |= ATC_SRC_PER(AT_DMA_ID_MCI1)
 438                              | ATC_DST_PER(AT_DMA_ID_MCI1);
 439
 440        data->dma_slave = alt_atslave;
 441        }
 442#endif
 443
 444
 445        /* input/irq */
 446        if (data->slot[0].detect_pin) {
 447                at91_set_gpio_input(data->slot[0].detect_pin, 1);
 448                at91_set_deglitch(data->slot[0].detect_pin, 1);
 449        }
 450        if (data->slot[0].wp_pin)
 451                at91_set_gpio_input(data->slot[0].wp_pin, 1);
 452
 453        if (mmc_id == 0) {              /* MCI0 */
 454
 455                /* CLK */
 456                at91_set_A_periph(AT91_PIN_PA0, 0);
 457
 458                /* CMD */
 459                at91_set_A_periph(AT91_PIN_PA1, 1);
 460
 461                /* DAT0, maybe DAT1..DAT3 and maybe DAT4..DAT7 */
 462                at91_set_A_periph(AT91_PIN_PA2, 1);
 463                if (data->slot[0].bus_width == 4) {
 464                        at91_set_A_periph(AT91_PIN_PA3, 1);
 465                        at91_set_A_periph(AT91_PIN_PA4, 1);
 466                        at91_set_A_periph(AT91_PIN_PA5, 1);
 467                        if (data->slot[0].bus_width == 8) {
 468                                at91_set_A_periph(AT91_PIN_PA6, 1);
 469                                at91_set_A_periph(AT91_PIN_PA7, 1);
 470                                at91_set_A_periph(AT91_PIN_PA8, 1);
 471                                at91_set_A_periph(AT91_PIN_PA9, 1);
 472                        }
 473                }
 474
 475                mmc0_data = *data;
 476                platform_device_register(&at91sam9g45_mmc0_device);
 477
 478        } else {                        /* MCI1 */
 479
 480                /* CLK */
 481                at91_set_A_periph(AT91_PIN_PA31, 0);
 482
 483                /* CMD */
 484                at91_set_A_periph(AT91_PIN_PA22, 1);
 485
 486                /* DAT0, maybe DAT1..DAT3 and maybe DAT4..DAT7 */
 487                at91_set_A_periph(AT91_PIN_PA23, 1);
 488                if (data->slot[0].bus_width == 4) {
 489                        at91_set_A_periph(AT91_PIN_PA24, 1);
 490                        at91_set_A_periph(AT91_PIN_PA25, 1);
 491                        at91_set_A_periph(AT91_PIN_PA26, 1);
 492                        if (data->slot[0].bus_width == 8) {
 493                                at91_set_A_periph(AT91_PIN_PA27, 1);
 494                                at91_set_A_periph(AT91_PIN_PA28, 1);
 495                                at91_set_A_periph(AT91_PIN_PA29, 1);
 496                                at91_set_A_periph(AT91_PIN_PA30, 1);
 497                        }
 498                }
 499
 500                mmc1_data = *data;
 501                platform_device_register(&at91sam9g45_mmc1_device);
 502
 503        }
 504}
 505#else
 506void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data) {}
 507#endif
 508
 509
 510/* --------------------------------------------------------------------
 511 *  NAND / SmartMedia
 512 * -------------------------------------------------------------------- */
 513
 514#if defined(CONFIG_MTD_NAND_ATMEL) || defined(CONFIG_MTD_NAND_ATMEL_MODULE)
 515static struct atmel_nand_data nand_data;
 516
 517#define NAND_BASE       AT91_CHIPSELECT_3
 518
 519static struct resource nand_resources[] = {
 520        [0] = {
 521                .start  = NAND_BASE,
 522                .end    = NAND_BASE + SZ_256M - 1,
 523                .flags  = IORESOURCE_MEM,
 524        },
 525        [1] = {
 526                .start  = AT91_BASE_SYS + AT91_ECC,
 527                .end    = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
 528                .flags  = IORESOURCE_MEM,
 529        }
 530};
 531
 532static struct platform_device at91sam9g45_nand_device = {
 533        .name           = "atmel_nand",
 534        .id             = -1,
 535        .dev            = {
 536                                .platform_data  = &nand_data,
 537        },
 538        .resource       = nand_resources,
 539        .num_resources  = ARRAY_SIZE(nand_resources),
 540};
 541
 542void __init at91_add_device_nand(struct atmel_nand_data *data)
 543{
 544        unsigned long csa;
 545
 546        if (!data)
 547                return;
 548
 549        csa = at91_sys_read(AT91_MATRIX_EBICSA);
 550        at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
 551
 552        /* enable pin */
 553        if (data->enable_pin)
 554                at91_set_gpio_output(data->enable_pin, 1);
 555
 556        /* ready/busy pin */
 557        if (data->rdy_pin)
 558                at91_set_gpio_input(data->rdy_pin, 1);
 559
 560        /* card detect pin */
 561        if (data->det_pin)
 562                at91_set_gpio_input(data->det_pin, 1);
 563
 564        nand_data = *data;
 565        platform_device_register(&at91sam9g45_nand_device);
 566}
 567#else
 568void __init at91_add_device_nand(struct atmel_nand_data *data) {}
 569#endif
 570
 571
 572/* --------------------------------------------------------------------
 573 *  TWI (i2c)
 574 * -------------------------------------------------------------------- */
 575
 576/*
 577 * Prefer the GPIO code since the TWI controller isn't robust
 578 * (gets overruns and underruns under load) and can only issue
 579 * repeated STARTs in one scenario (the driver doesn't yet handle them).
 580 */
 581#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
 582static struct i2c_gpio_platform_data pdata_i2c0 = {
 583        .sda_pin                = AT91_PIN_PA20,
 584        .sda_is_open_drain      = 1,
 585        .scl_pin                = AT91_PIN_PA21,
 586        .scl_is_open_drain      = 1,
 587        .udelay                 = 5,            /* ~100 kHz */
 588};
 589
 590static struct platform_device at91sam9g45_twi0_device = {
 591        .name                   = "i2c-gpio",
 592        .id                     = 0,
 593        .dev.platform_data      = &pdata_i2c0,
 594};
 595
 596static struct i2c_gpio_platform_data pdata_i2c1 = {
 597        .sda_pin                = AT91_PIN_PB10,
 598        .sda_is_open_drain      = 1,
 599        .scl_pin                = AT91_PIN_PB11,
 600        .scl_is_open_drain      = 1,
 601        .udelay                 = 5,            /* ~100 kHz */
 602};
 603
 604static struct platform_device at91sam9g45_twi1_device = {
 605        .name                   = "i2c-gpio",
 606        .id                     = 1,
 607        .dev.platform_data      = &pdata_i2c1,
 608};
 609
 610void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices)
 611{
 612        i2c_register_board_info(i2c_id, devices, nr_devices);
 613
 614        if (i2c_id == 0) {
 615                at91_set_GPIO_periph(AT91_PIN_PA20, 1);         /* TWD (SDA) */
 616                at91_set_multi_drive(AT91_PIN_PA20, 1);
 617
 618                at91_set_GPIO_periph(AT91_PIN_PA21, 1);         /* TWCK (SCL) */
 619                at91_set_multi_drive(AT91_PIN_PA21, 1);
 620
 621                platform_device_register(&at91sam9g45_twi0_device);
 622        } else {
 623                at91_set_GPIO_periph(AT91_PIN_PB10, 1);         /* TWD (SDA) */
 624                at91_set_multi_drive(AT91_PIN_PB10, 1);
 625
 626                at91_set_GPIO_periph(AT91_PIN_PB11, 1);         /* TWCK (SCL) */
 627                at91_set_multi_drive(AT91_PIN_PB11, 1);
 628
 629                platform_device_register(&at91sam9g45_twi1_device);
 630        }
 631}
 632
 633#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
 634static struct resource twi0_resources[] = {
 635        [0] = {
 636                .start  = AT91SAM9G45_BASE_TWI0,
 637                .end    = AT91SAM9G45_BASE_TWI0 + SZ_16K - 1,
 638                .flags  = IORESOURCE_MEM,
 639        },
 640        [1] = {
 641                .start  = AT91SAM9G45_ID_TWI0,
 642                .end    = AT91SAM9G45_ID_TWI0,
 643                .flags  = IORESOURCE_IRQ,
 644        },
 645};
 646
 647static struct platform_device at91sam9g45_twi0_device = {
 648        .name           = "at91_i2c",
 649        .id             = 0,
 650        .resource       = twi0_resources,
 651        .num_resources  = ARRAY_SIZE(twi0_resources),
 652};
 653
 654static struct resource twi1_resources[] = {
 655        [0] = {
 656                .start  = AT91SAM9G45_BASE_TWI1,
 657                .end    = AT91SAM9G45_BASE_TWI1 + SZ_16K - 1,
 658                .flags  = IORESOURCE_MEM,
 659        },
 660        [1] = {
 661                .start  = AT91SAM9G45_ID_TWI1,
 662                .end    = AT91SAM9G45_ID_TWI1,
 663                .flags  = IORESOURCE_IRQ,
 664        },
 665};
 666
 667static struct platform_device at91sam9g45_twi1_device = {
 668        .name           = "at91_i2c",
 669        .id             = 1,
 670        .resource       = twi1_resources,
 671        .num_resources  = ARRAY_SIZE(twi1_resources),
 672};
 673
 674void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices)
 675{
 676        i2c_register_board_info(i2c_id, devices, nr_devices);
 677
 678        /* pins used for TWI interface */
 679        if (i2c_id == 0) {
 680                at91_set_A_periph(AT91_PIN_PA20, 0);            /* TWD */
 681                at91_set_multi_drive(AT91_PIN_PA20, 1);
 682
 683                at91_set_A_periph(AT91_PIN_PA21, 0);            /* TWCK */
 684                at91_set_multi_drive(AT91_PIN_PA21, 1);
 685
 686                platform_device_register(&at91sam9g45_twi0_device);
 687        } else {
 688                at91_set_A_periph(AT91_PIN_PB10, 0);            /* TWD */
 689                at91_set_multi_drive(AT91_PIN_PB10, 1);
 690
 691                at91_set_A_periph(AT91_PIN_PB11, 0);            /* TWCK */
 692                at91_set_multi_drive(AT91_PIN_PB11, 1);
 693
 694                platform_device_register(&at91sam9g45_twi1_device);
 695        }
 696}
 697#else
 698void __init at91_add_device_i2c(short i2c_id, struct i2c_board_info *devices, int nr_devices) {}
 699#endif
 700
 701
 702/* --------------------------------------------------------------------
 703 *  SPI
 704 * -------------------------------------------------------------------- */
 705
 706#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
 707static u64 spi_dmamask = DMA_BIT_MASK(32);
 708
 709static struct resource spi0_resources[] = {
 710        [0] = {
 711                .start  = AT91SAM9G45_BASE_SPI0,
 712                .end    = AT91SAM9G45_BASE_SPI0 + SZ_16K - 1,
 713                .flags  = IORESOURCE_MEM,
 714        },
 715        [1] = {
 716                .start  = AT91SAM9G45_ID_SPI0,
 717                .end    = AT91SAM9G45_ID_SPI0,
 718                .flags  = IORESOURCE_IRQ,
 719        },
 720};
 721
 722static struct platform_device at91sam9g45_spi0_device = {
 723        .name           = "atmel_spi",
 724        .id             = 0,
 725        .dev            = {
 726                                .dma_mask               = &spi_dmamask,
 727                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 728        },
 729        .resource       = spi0_resources,
 730        .num_resources  = ARRAY_SIZE(spi0_resources),
 731};
 732
 733static const unsigned spi0_standard_cs[4] = { AT91_PIN_PB3, AT91_PIN_PB18, AT91_PIN_PB19, AT91_PIN_PD27 };
 734
 735static struct resource spi1_resources[] = {
 736        [0] = {
 737                .start  = AT91SAM9G45_BASE_SPI1,
 738                .end    = AT91SAM9G45_BASE_SPI1 + SZ_16K - 1,
 739                .flags  = IORESOURCE_MEM,
 740        },
 741        [1] = {
 742                .start  = AT91SAM9G45_ID_SPI1,
 743                .end    = AT91SAM9G45_ID_SPI1,
 744                .flags  = IORESOURCE_IRQ,
 745        },
 746};
 747
 748static struct platform_device at91sam9g45_spi1_device = {
 749        .name           = "atmel_spi",
 750        .id             = 1,
 751        .dev            = {
 752                                .dma_mask               = &spi_dmamask,
 753                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 754        },
 755        .resource       = spi1_resources,
 756        .num_resources  = ARRAY_SIZE(spi1_resources),
 757};
 758
 759static const unsigned spi1_standard_cs[4] = { AT91_PIN_PB17, AT91_PIN_PD28, AT91_PIN_PD18, AT91_PIN_PD19 };
 760
 761void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 762{
 763        int i;
 764        unsigned long cs_pin;
 765        short enable_spi0 = 0;
 766        short enable_spi1 = 0;
 767
 768        /* Choose SPI chip-selects */
 769        for (i = 0; i < nr_devices; i++) {
 770                if (devices[i].controller_data)
 771                        cs_pin = (unsigned long) devices[i].controller_data;
 772                else if (devices[i].bus_num == 0)
 773                        cs_pin = spi0_standard_cs[devices[i].chip_select];
 774                else
 775                        cs_pin = spi1_standard_cs[devices[i].chip_select];
 776
 777                if (devices[i].bus_num == 0)
 778                        enable_spi0 = 1;
 779                else
 780                        enable_spi1 = 1;
 781
 782                /* enable chip-select pin */
 783                at91_set_gpio_output(cs_pin, 1);
 784
 785                /* pass chip-select pin to driver */
 786                devices[i].controller_data = (void *) cs_pin;
 787        }
 788
 789        spi_register_board_info(devices, nr_devices);
 790
 791        /* Configure SPI bus(es) */
 792        if (enable_spi0) {
 793                at91_set_A_periph(AT91_PIN_PB0, 0);     /* SPI0_MISO */
 794                at91_set_A_periph(AT91_PIN_PB1, 0);     /* SPI0_MOSI */
 795                at91_set_A_periph(AT91_PIN_PB2, 0);     /* SPI0_SPCK */
 796
 797                platform_device_register(&at91sam9g45_spi0_device);
 798        }
 799        if (enable_spi1) {
 800                at91_set_A_periph(AT91_PIN_PB14, 0);    /* SPI1_MISO */
 801                at91_set_A_periph(AT91_PIN_PB15, 0);    /* SPI1_MOSI */
 802                at91_set_A_periph(AT91_PIN_PB16, 0);    /* SPI1_SPCK */
 803
 804                platform_device_register(&at91sam9g45_spi1_device);
 805        }
 806}
 807#else
 808void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {}
 809#endif
 810
 811
 812/* --------------------------------------------------------------------
 813 *  AC97
 814 * -------------------------------------------------------------------- */
 815
 816#if defined(CONFIG_SND_ATMEL_AC97C) || defined(CONFIG_SND_ATMEL_AC97C_MODULE)
 817static u64 ac97_dmamask = DMA_BIT_MASK(32);
 818static struct ac97c_platform_data ac97_data;
 819
 820static struct resource ac97_resources[] = {
 821        [0] = {
 822                .start  = AT91SAM9G45_BASE_AC97C,
 823                .end    = AT91SAM9G45_BASE_AC97C + SZ_16K - 1,
 824                .flags  = IORESOURCE_MEM,
 825        },
 826        [1] = {
 827                .start  = AT91SAM9G45_ID_AC97C,
 828                .end    = AT91SAM9G45_ID_AC97C,
 829                .flags  = IORESOURCE_IRQ,
 830        },
 831};
 832
 833static struct platform_device at91sam9g45_ac97_device = {
 834        .name           = "atmel_ac97c",
 835        .id             = 0,
 836        .dev            = {
 837                                .dma_mask               = &ac97_dmamask,
 838                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 839                                .platform_data          = &ac97_data,
 840        },
 841        .resource       = ac97_resources,
 842        .num_resources  = ARRAY_SIZE(ac97_resources),
 843};
 844
 845void __init at91_add_device_ac97(struct ac97c_platform_data *data)
 846{
 847        if (!data)
 848                return;
 849
 850        at91_set_A_periph(AT91_PIN_PD8, 0);     /* AC97FS */
 851        at91_set_A_periph(AT91_PIN_PD9, 0);     /* AC97CK */
 852        at91_set_A_periph(AT91_PIN_PD7, 0);     /* AC97TX */
 853        at91_set_A_periph(AT91_PIN_PD6, 0);     /* AC97RX */
 854
 855        /* reset */
 856        if (data->reset_pin)
 857                at91_set_gpio_output(data->reset_pin, 0);
 858
 859        ac97_data = *data;
 860        platform_device_register(&at91sam9g45_ac97_device);
 861}
 862#else
 863void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
 864#endif
 865
 866
 867/* --------------------------------------------------------------------
 868 *  LCD Controller
 869 * -------------------------------------------------------------------- */
 870
 871#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 872static u64 lcdc_dmamask = DMA_BIT_MASK(32);
 873static struct atmel_lcdfb_info lcdc_data;
 874
 875static struct resource lcdc_resources[] = {
 876        [0] = {
 877                .start  = AT91SAM9G45_LCDC_BASE,
 878                .end    = AT91SAM9G45_LCDC_BASE + SZ_4K - 1,
 879                .flags  = IORESOURCE_MEM,
 880        },
 881        [1] = {
 882                .start  = AT91SAM9G45_ID_LCDC,
 883                .end    = AT91SAM9G45_ID_LCDC,
 884                .flags  = IORESOURCE_IRQ,
 885        },
 886};
 887
 888static struct platform_device at91_lcdc_device = {
 889        .name           = "atmel_lcdfb",
 890        .id             = 0,
 891        .dev            = {
 892                                .dma_mask               = &lcdc_dmamask,
 893                                .coherent_dma_mask      = DMA_BIT_MASK(32),
 894                                .platform_data          = &lcdc_data,
 895        },
 896        .resource       = lcdc_resources,
 897        .num_resources  = ARRAY_SIZE(lcdc_resources),
 898};
 899
 900void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 901{
 902        if (!data)
 903                return;
 904
 905        at91_set_A_periph(AT91_PIN_PE0, 0);     /* LCDDPWR */
 906
 907        at91_set_A_periph(AT91_PIN_PE2, 0);     /* LCDCC */
 908        at91_set_A_periph(AT91_PIN_PE3, 0);     /* LCDVSYNC */
 909        at91_set_A_periph(AT91_PIN_PE4, 0);     /* LCDHSYNC */
 910        at91_set_A_periph(AT91_PIN_PE5, 0);     /* LCDDOTCK */
 911        at91_set_A_periph(AT91_PIN_PE6, 0);     /* LCDDEN */
 912        at91_set_A_periph(AT91_PIN_PE7, 0);     /* LCDD0 */
 913        at91_set_A_periph(AT91_PIN_PE8, 0);     /* LCDD1 */
 914        at91_set_A_periph(AT91_PIN_PE9, 0);     /* LCDD2 */
 915        at91_set_A_periph(AT91_PIN_PE10, 0);    /* LCDD3 */
 916        at91_set_A_periph(AT91_PIN_PE11, 0);    /* LCDD4 */
 917        at91_set_A_periph(AT91_PIN_PE12, 0);    /* LCDD5 */
 918        at91_set_A_periph(AT91_PIN_PE13, 0);    /* LCDD6 */
 919        at91_set_A_periph(AT91_PIN_PE14, 0);    /* LCDD7 */
 920        at91_set_A_periph(AT91_PIN_PE15, 0);    /* LCDD8 */
 921        at91_set_A_periph(AT91_PIN_PE16, 0);    /* LCDD9 */
 922        at91_set_A_periph(AT91_PIN_PE17, 0);    /* LCDD10 */
 923        at91_set_A_periph(AT91_PIN_PE18, 0);    /* LCDD11 */
 924        at91_set_A_periph(AT91_PIN_PE19, 0);    /* LCDD12 */
 925        at91_set_A_periph(AT91_PIN_PE20, 0);    /* LCDD13 */
 926        at91_set_A_periph(AT91_PIN_PE21, 0);    /* LCDD14 */
 927        at91_set_A_periph(AT91_PIN_PE22, 0);    /* LCDD15 */
 928        at91_set_A_periph(AT91_PIN_PE23, 0);    /* LCDD16 */
 929        at91_set_A_periph(AT91_PIN_PE24, 0);    /* LCDD17 */
 930        at91_set_A_periph(AT91_PIN_PE25, 0);    /* LCDD18 */
 931        at91_set_A_periph(AT91_PIN_PE26, 0);    /* LCDD19 */
 932        at91_set_A_periph(AT91_PIN_PE27, 0);    /* LCDD20 */
 933        at91_set_A_periph(AT91_PIN_PE28, 0);    /* LCDD21 */
 934        at91_set_A_periph(AT91_PIN_PE29, 0);    /* LCDD22 */
 935        at91_set_A_periph(AT91_PIN_PE30, 0);    /* LCDD23 */
 936
 937        lcdc_data = *data;
 938        platform_device_register(&at91_lcdc_device);
 939}
 940#else
 941void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
 942#endif
 943
 944
 945/* --------------------------------------------------------------------
 946 *  Timer/Counter block
 947 * -------------------------------------------------------------------- */
 948
 949#ifdef CONFIG_ATMEL_TCLIB
 950static struct resource tcb0_resources[] = {
 951        [0] = {
 952                .start  = AT91SAM9G45_BASE_TCB0,
 953                .end    = AT91SAM9G45_BASE_TCB0 + SZ_16K - 1,
 954                .flags  = IORESOURCE_MEM,
 955        },
 956        [1] = {
 957                .start  = AT91SAM9G45_ID_TCB,
 958                .end    = AT91SAM9G45_ID_TCB,
 959                .flags  = IORESOURCE_IRQ,
 960        },
 961};
 962
 963static struct platform_device at91sam9g45_tcb0_device = {
 964        .name           = "atmel_tcb",
 965        .id             = 0,
 966        .resource       = tcb0_resources,
 967        .num_resources  = ARRAY_SIZE(tcb0_resources),
 968};
 969
 970/* TCB1 begins with TC3 */
 971static struct resource tcb1_resources[] = {
 972        [0] = {
 973                .start  = AT91SAM9G45_BASE_TCB1,
 974                .end    = AT91SAM9G45_BASE_TCB1 + SZ_16K - 1,
 975                .flags  = IORESOURCE_MEM,
 976        },
 977        [1] = {
 978                .start  = AT91SAM9G45_ID_TCB,
 979                .end    = AT91SAM9G45_ID_TCB,
 980                .flags  = IORESOURCE_IRQ,
 981        },
 982};
 983
 984static struct platform_device at91sam9g45_tcb1_device = {
 985        .name           = "atmel_tcb",
 986        .id             = 1,
 987        .resource       = tcb1_resources,
 988        .num_resources  = ARRAY_SIZE(tcb1_resources),
 989};
 990
 991static void __init at91_add_device_tc(void)
 992{
 993        platform_device_register(&at91sam9g45_tcb0_device);
 994        platform_device_register(&at91sam9g45_tcb1_device);
 995}
 996#else
 997static void __init at91_add_device_tc(void) { }
 998#endif
 999
1000
1001/* --------------------------------------------------------------------
1002 *  RTC
1003 * -------------------------------------------------------------------- */
1004
1005#if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
1006static struct platform_device at91sam9g45_rtc_device = {
1007        .name           = "at91_rtc",
1008        .id             = -1,
1009        .num_resources  = 0,
1010};
1011
1012static void __init at91_add_device_rtc(void)
1013{
1014        platform_device_register(&at91sam9g45_rtc_device);
1015}
1016#else
1017static void __init at91_add_device_rtc(void) {}
1018#endif
1019
1020
1021/* --------------------------------------------------------------------
1022 *  Touchscreen
1023 * -------------------------------------------------------------------- */
1024
1025#if defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) || defined(CONFIG_TOUCHSCREEN_ATMEL_TSADCC_MODULE)
1026static u64 tsadcc_dmamask = DMA_BIT_MASK(32);
1027static struct at91_tsadcc_data tsadcc_data;
1028
1029static struct resource tsadcc_resources[] = {
1030        [0] = {
1031                .start  = AT91SAM9G45_BASE_TSC,
1032                .end    = AT91SAM9G45_BASE_TSC + SZ_16K - 1,
1033                .flags  = IORESOURCE_MEM,
1034        },
1035        [1] = {
1036                .start  = AT91SAM9G45_ID_TSC,
1037                .end    = AT91SAM9G45_ID_TSC,
1038                .flags  = IORESOURCE_IRQ,
1039        }
1040};
1041
1042static struct platform_device at91sam9g45_tsadcc_device = {
1043        .name           = "atmel_tsadcc",
1044        .id             = -1,
1045        .dev            = {
1046                                .dma_mask               = &tsadcc_dmamask,
1047                                .coherent_dma_mask      = DMA_BIT_MASK(32),
1048                                .platform_data          = &tsadcc_data,
1049        },
1050        .resource       = tsadcc_resources,
1051        .num_resources  = ARRAY_SIZE(tsadcc_resources),
1052};
1053
1054void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data)
1055{
1056        if (!data)
1057                return;
1058
1059        at91_set_gpio_input(AT91_PIN_PD20, 0);  /* AD0_XR */
1060        at91_set_gpio_input(AT91_PIN_PD21, 0);  /* AD1_XL */
1061        at91_set_gpio_input(AT91_PIN_PD22, 0);  /* AD2_YT */
1062        at91_set_gpio_input(AT91_PIN_PD23, 0);  /* AD3_TB */
1063
1064        tsadcc_data = *data;
1065        platform_device_register(&at91sam9g45_tsadcc_device);
1066}
1067#else
1068void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
1069#endif
1070
1071
1072/* --------------------------------------------------------------------
1073 *  RTT
1074 * -------------------------------------------------------------------- */
1075
1076static struct resource rtt_resources[] = {
1077        {
1078                .start  = AT91_BASE_SYS + AT91_RTT,
1079                .end    = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
1080                .flags  = IORESOURCE_MEM,
1081        }
1082};
1083
1084static struct platform_device at91sam9g45_rtt_device = {
1085        .name           = "at91_rtt",
1086        .id             = 0,
1087        .resource       = rtt_resources,
1088        .num_resources  = ARRAY_SIZE(rtt_resources),
1089};
1090
1091static void __init at91_add_device_rtt(void)
1092{
1093        platform_device_register(&at91sam9g45_rtt_device);
1094}
1095
1096
1097/* --------------------------------------------------------------------
1098 *  Watchdog
1099 * -------------------------------------------------------------------- */
1100
1101#if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
1102static struct platform_device at91sam9g45_wdt_device = {
1103        .name           = "at91_wdt",
1104        .id             = -1,
1105        .num_resources  = 0,
1106};
1107
1108static void __init at91_add_device_watchdog(void)
1109{
1110        platform_device_register(&at91sam9g45_wdt_device);
1111}
1112#else
1113static void __init at91_add_device_watchdog(void) {}
1114#endif
1115
1116
1117/* --------------------------------------------------------------------
1118 *  PWM
1119 * --------------------------------------------------------------------*/
1120
1121#if defined(CONFIG_ATMEL_PWM) || defined(CONFIG_ATMEL_PWM_MODULE)
1122static u32 pwm_mask;
1123
1124static struct resource pwm_resources[] = {
1125        [0] = {
1126                .start  = AT91SAM9G45_BASE_PWMC,
1127                .end    = AT91SAM9G45_BASE_PWMC + SZ_16K - 1,
1128                .flags  = IORESOURCE_MEM,
1129        },
1130        [1] = {
1131                .start  = AT91SAM9G45_ID_PWMC,
1132                .end    = AT91SAM9G45_ID_PWMC,
1133                .flags  = IORESOURCE_IRQ,
1134        },
1135};
1136
1137static struct platform_device at91sam9g45_pwm0_device = {
1138        .name   = "atmel_pwm",
1139        .id     = -1,
1140        .dev    = {
1141                .platform_data          = &pwm_mask,
1142        },
1143        .resource       = pwm_resources,
1144        .num_resources  = ARRAY_SIZE(pwm_resources),
1145};
1146
1147void __init at91_add_device_pwm(u32 mask)
1148{
1149        if (mask & (1 << AT91_PWM0))
1150                at91_set_B_periph(AT91_PIN_PD24, 1);    /* enable PWM0 */
1151
1152        if (mask & (1 << AT91_PWM1))
1153                at91_set_B_periph(AT91_PIN_PD31, 1);    /* enable PWM1 */
1154
1155        if (mask & (1 << AT91_PWM2))
1156                at91_set_B_periph(AT91_PIN_PD26, 1);    /* enable PWM2 */
1157
1158        if (mask & (1 << AT91_PWM3))
1159                at91_set_B_periph(AT91_PIN_PD0, 1);     /* enable PWM3 */
1160
1161        pwm_mask = mask;
1162
1163        platform_device_register(&at91sam9g45_pwm0_device);
1164}
1165#else
1166void __init at91_add_device_pwm(u32 mask) {}
1167#endif
1168
1169
1170/* --------------------------------------------------------------------
1171 *  SSC -- Synchronous Serial Controller
1172 * -------------------------------------------------------------------- */
1173
1174#if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE)
1175static u64 ssc0_dmamask = DMA_BIT_MASK(32);
1176
1177static struct resource ssc0_resources[] = {
1178        [0] = {
1179                .start  = AT91SAM9G45_BASE_SSC0,
1180                .end    = AT91SAM9G45_BASE_SSC0 + SZ_16K - 1,
1181                .flags  = IORESOURCE_MEM,
1182        },
1183        [1] = {
1184                .start  = AT91SAM9G45_ID_SSC0,
1185                .end    = AT91SAM9G45_ID_SSC0,
1186                .flags  = IORESOURCE_IRQ,
1187        },
1188};
1189
1190static struct platform_device at91sam9g45_ssc0_device = {
1191        .name   = "ssc",
1192        .id     = 0,
1193        .dev    = {
1194                .dma_mask               = &ssc0_dmamask,
1195                .coherent_dma_mask      = DMA_BIT_MASK(32),
1196        },
1197        .resource       = ssc0_resources,
1198        .num_resources  = ARRAY_SIZE(ssc0_resources),
1199};
1200
1201static inline void configure_ssc0_pins(unsigned pins)
1202{
1203        if (pins & ATMEL_SSC_TF)
1204                at91_set_A_periph(AT91_PIN_PD1, 1);
1205        if (pins & ATMEL_SSC_TK)
1206                at91_set_A_periph(AT91_PIN_PD0, 1);
1207        if (pins & ATMEL_SSC_TD)
1208                at91_set_A_periph(AT91_PIN_PD2, 1);
1209        if (pins & ATMEL_SSC_RD)
1210                at91_set_A_periph(AT91_PIN_PD3, 1);
1211        if (pins & ATMEL_SSC_RK)
1212                at91_set_A_periph(AT91_PIN_PD4, 1);
1213        if (pins & ATMEL_SSC_RF)
1214                at91_set_A_periph(AT91_PIN_PD5, 1);
1215}
1216
1217static u64 ssc1_dmamask = DMA_BIT_MASK(32);
1218
1219static struct resource ssc1_resources[] = {
1220        [0] = {
1221                .start  = AT91SAM9G45_BASE_SSC1,
1222                .end    = AT91SAM9G45_BASE_SSC1 + SZ_16K - 1,
1223                .flags  = IORESOURCE_MEM,
1224        },
1225        [1] = {
1226                .start  = AT91SAM9G45_ID_SSC1,
1227                .end    = AT91SAM9G45_ID_SSC1,
1228                .flags  = IORESOURCE_IRQ,
1229        },
1230};
1231
1232static struct platform_device at91sam9g45_ssc1_device = {
1233        .name   = "ssc",
1234        .id     = 1,
1235        .dev    = {
1236                .dma_mask               = &ssc1_dmamask,
1237                .coherent_dma_mask      = DMA_BIT_MASK(32),
1238        },
1239        .resource       = ssc1_resources,
1240        .num_resources  = ARRAY_SIZE(ssc1_resources),
1241};
1242
1243static inline void configure_ssc1_pins(unsigned pins)
1244{
1245        if (pins & ATMEL_SSC_TF)
1246                at91_set_A_periph(AT91_PIN_PD14, 1);
1247        if (pins & ATMEL_SSC_TK)
1248                at91_set_A_periph(AT91_PIN_PD12, 1);
1249        if (pins & ATMEL_SSC_TD)
1250                at91_set_A_periph(AT91_PIN_PD10, 1);
1251        if (pins & ATMEL_SSC_RD)
1252                at91_set_A_periph(AT91_PIN_PD11, 1);
1253        if (pins & ATMEL_SSC_RK)
1254                at91_set_A_periph(AT91_PIN_PD13, 1);
1255        if (pins & ATMEL_SSC_RF)
1256                at91_set_A_periph(AT91_PIN_PD15, 1);
1257}
1258
1259/*
1260 * SSC controllers are accessed through library code, instead of any
1261 * kind of all-singing/all-dancing driver.  For example one could be
1262 * used by a particular I2S audio codec's driver, while another one
1263 * on the same system might be used by a custom data capture driver.
1264 */
1265void __init at91_add_device_ssc(unsigned id, unsigned pins)
1266{
1267        struct platform_device *pdev;
1268
1269        /*
1270         * NOTE: caller is responsible for passing information matching
1271         * "pins" to whatever will be using each particular controller.
1272         */
1273        switch (id) {
1274        case AT91SAM9G45_ID_SSC0:
1275                pdev = &at91sam9g45_ssc0_device;
1276                configure_ssc0_pins(pins);
1277                break;
1278        case AT91SAM9G45_ID_SSC1:
1279                pdev = &at91sam9g45_ssc1_device;
1280                configure_ssc1_pins(pins);
1281                break;
1282        default:
1283                return;
1284        }
1285
1286        platform_device_register(pdev);
1287}
1288
1289#else
1290void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
1291#endif
1292
1293
1294/* --------------------------------------------------------------------
1295 *  UART
1296 * -------------------------------------------------------------------- */
1297
1298#if defined(CONFIG_SERIAL_ATMEL)
1299static struct resource dbgu_resources[] = {
1300        [0] = {
1301                .start  = AT91_VA_BASE_SYS + AT91_DBGU,
1302                .end    = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1,
1303                .flags  = IORESOURCE_MEM,
1304        },
1305        [1] = {
1306                .start  = AT91_ID_SYS,
1307                .end    = AT91_ID_SYS,
1308                .flags  = IORESOURCE_IRQ,
1309        },
1310};
1311
1312static struct atmel_uart_data dbgu_data = {
1313        .use_dma_tx     = 0,
1314        .use_dma_rx     = 0,
1315        .regs           = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU),
1316};
1317
1318static u64 dbgu_dmamask = DMA_BIT_MASK(32);
1319
1320static struct platform_device at91sam9g45_dbgu_device = {
1321        .name           = "atmel_usart",
1322        .id             = 0,
1323        .dev            = {
1324                                .dma_mask               = &dbgu_dmamask,
1325                                .coherent_dma_mask      = DMA_BIT_MASK(32),
1326                                .platform_data          = &dbgu_data,
1327        },
1328        .resource       = dbgu_resources,
1329        .num_resources  = ARRAY_SIZE(dbgu_resources),
1330};
1331
1332static inline void configure_dbgu_pins(void)
1333{
1334        at91_set_A_periph(AT91_PIN_PB12, 0);            /* DRXD */
1335        at91_set_A_periph(AT91_PIN_PB13, 1);            /* DTXD */
1336}
1337
1338static struct resource uart0_resources[] = {
1339        [0] = {
1340                .start  = AT91SAM9G45_BASE_US0,
1341                .end    = AT91SAM9G45_BASE_US0 + SZ_16K - 1,
1342                .flags  = IORESOURCE_MEM,
1343        },
1344        [1] = {
1345                .start  = AT91SAM9G45_ID_US0,
1346                .end    = AT91SAM9G45_ID_US0,
1347                .flags  = IORESOURCE_IRQ,
1348        },
1349};
1350
1351static struct atmel_uart_data uart0_data = {
1352        .use_dma_tx     = 1,
1353        .use_dma_rx     = 1,
1354};
1355
1356static u64 uart0_dmamask = DMA_BIT_MASK(32);
1357
1358static struct platform_device at91sam9g45_uart0_device = {
1359        .name           = "atmel_usart",
1360        .id             = 1,
1361        .dev            = {
1362                                .dma_mask               = &uart0_dmamask,
1363                                .coherent_dma_mask      = DMA_BIT_MASK(32),
1364                                .platform_data          = &uart0_data,
1365        },
1366        .resource       = uart0_resources,
1367        .num_resources  = ARRAY_SIZE(uart0_resources),
1368};
1369
1370static inline void configure_usart0_pins(unsigned pins)
1371{
1372        at91_set_A_periph(AT91_PIN_PB19, 1);            /* TXD0 */
1373        at91_set_A_periph(AT91_PIN_PB18, 0);            /* RXD0 */
1374
1375        if (pins & ATMEL_UART_RTS)
1376                at91_set_B_periph(AT91_PIN_PB17, 0);    /* RTS0 */
1377        if (pins & ATMEL_UART_CTS)
1378                at91_set_B_periph(AT91_PIN_PB15, 0);    /* CTS0 */
1379}
1380
1381static struct resource uart1_resources[] = {
1382        [0] = {
1383                .start  = AT91SAM9G45_BASE_US1,
1384                .end    = AT91SAM9G45_BASE_US1 + SZ_16K - 1,
1385                .flags  = IORESOURCE_MEM,
1386        },
1387        [1] = {
1388                .start  = AT91SAM9G45_ID_US1,
1389                .end    = AT91SAM9G45_ID_US1,
1390                .flags  = IORESOURCE_IRQ,
1391        },
1392};
1393
1394static struct atmel_uart_data uart1_data = {
1395        .use_dma_tx     = 1,
1396        .use_dma_rx     = 1,
1397};
1398
1399static u64 uart1_dmamask = DMA_BIT_MASK(32);
1400
1401static struct platform_device at91sam9g45_uart1_device = {
1402        .name           = "atmel_usart",
1403        .id             = 2,
1404        .dev            = {
1405                                .dma_mask               = &uart1_dmamask,
1406                                .coherent_dma_mask      = DMA_BIT_MASK(32),
1407                                .platform_data          = &uart1_data,
1408        },
1409        .resource       = uart1_resources,
1410        .num_resources  = ARRAY_SIZE(uart1_resources),
1411};
1412
1413static inline void configure_usart1_pins(unsigned pins)
1414{
1415        at91_set_A_periph(AT91_PIN_PB4, 1);             /* TXD1 */
1416        at91_set_A_periph(AT91_PIN_PB5, 0);             /* RXD1 */
1417
1418        if (pins & ATMEL_UART_RTS)
1419                at91_set_A_periph(AT91_PIN_PD16, 0);    /* RTS1 */
1420        if (pins & ATMEL_UART_CTS)
1421                at91_set_A_periph(AT91_PIN_PD17, 0);    /* CTS1 */
1422}
1423
1424static struct resource uart2_resources[] = {
1425        [0] = {
1426                .start  = AT91SAM9G45_BASE_US2,
1427                .end    = AT91SAM9G45_BASE_US2 + SZ_16K - 1,
1428                .flags  = IORESOURCE_MEM,
1429        },
1430        [1] = {
1431                .start  = AT91SAM9G45_ID_US2,
1432                .end    = AT91SAM9G45_ID_US2,
1433                .flags  = IORESOURCE_IRQ,
1434        },
1435};
1436
1437static struct atmel_uart_data uart2_data = {
1438        .use_dma_tx     = 1,
1439        .use_dma_rx     = 1,
1440};
1441
1442static u64 uart2_dmamask = DMA_BIT_MASK(32);
1443
1444static struct platform_device at91sam9g45_uart2_device = {
1445        .name           = "atmel_usart",
1446        .id             = 3,
1447        .dev            = {
1448                                .dma_mask               = &uart2_dmamask,
1449                                .coherent_dma_mask      = DMA_BIT_MASK(32),
1450                                .platform_data          = &uart2_data,
1451        },
1452        .resource       = uart2_resources,
1453        .num_resources  = ARRAY_SIZE(uart2_resources),
1454};
1455
1456static inline void configure_usart2_pins(unsigned pins)
1457{
1458        at91_set_A_periph(AT91_PIN_PB6, 1);             /* TXD2 */
1459        at91_set_A_periph(AT91_PIN_PB7, 0);             /* RXD2 */
1460
1461        if (pins & ATMEL_UART_RTS)
1462                at91_set_B_periph(AT91_PIN_PC9, 0);     /* RTS2 */
1463        if (pins & ATMEL_UART_CTS)
1464                at91_set_B_periph(AT91_PIN_PC11, 0);    /* CTS2 */
1465}
1466
1467static struct resource uart3_resources[] = {
1468        [0] = {
1469                .start  = AT91SAM9G45_BASE_US3,
1470                .end    = AT91SAM9G45_BASE_US3 + SZ_16K - 1,
1471                .flags  = IORESOURCE_MEM,
1472        },
1473        [1] = {
1474                .start  = AT91SAM9G45_ID_US3,
1475                .end    = AT91SAM9G45_ID_US3,
1476                .flags  = IORESOURCE_IRQ,
1477        },
1478};
1479
1480static struct atmel_uart_data uart3_data = {
1481        .use_dma_tx     = 1,
1482        .use_dma_rx     = 1,
1483};
1484
1485static u64 uart3_dmamask = DMA_BIT_MASK(32);
1486
1487static struct platform_device at91sam9g45_uart3_device = {
1488        .name           = "atmel_usart",
1489        .id             = 4,
1490        .dev            = {
1491                                .dma_mask               = &uart3_dmamask,
1492                                .coherent_dma_mask      = DMA_BIT_MASK(32),
1493                                .platform_data          = &uart3_data,
1494        },
1495        .resource       = uart3_resources,
1496        .num_resources  = ARRAY_SIZE(uart3_resources),
1497};
1498
1499static inline void configure_usart3_pins(unsigned pins)
1500{
1501        at91_set_A_periph(AT91_PIN_PB8, 1);             /* TXD3 */
1502        at91_set_A_periph(AT91_PIN_PB9, 0);             /* RXD3 */
1503
1504        if (pins & ATMEL_UART_RTS)
1505                at91_set_B_periph(AT91_PIN_PA23, 0);    /* RTS3 */
1506        if (pins & ATMEL_UART_CTS)
1507                at91_set_B_periph(AT91_PIN_PA24, 0);    /* CTS3 */
1508}
1509
1510static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART];   /* the UARTs to use */
1511struct platform_device *atmel_default_console_device;   /* the serial console device */
1512
1513void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins)
1514{
1515        struct platform_device *pdev;
1516        struct atmel_uart_data *pdata;
1517
1518        switch (id) {
1519                case 0:         /* DBGU */
1520                        pdev = &at91sam9g45_dbgu_device;
1521                        configure_dbgu_pins();
1522                        break;
1523                case AT91SAM9G45_ID_US0:
1524                        pdev = &at91sam9g45_uart0_device;
1525                        configure_usart0_pins(pins);
1526                        break;
1527                case AT91SAM9G45_ID_US1:
1528                        pdev = &at91sam9g45_uart1_device;
1529                        configure_usart1_pins(pins);
1530                        break;
1531                case AT91SAM9G45_ID_US2:
1532                        pdev = &at91sam9g45_uart2_device;
1533                        configure_usart2_pins(pins);
1534                        break;
1535                case AT91SAM9G45_ID_US3:
1536                        pdev = &at91sam9g45_uart3_device;
1537                        configure_usart3_pins(pins);
1538                        break;
1539                default:
1540                        return;
1541        }
1542        pdata = pdev->dev.platform_data;
1543        pdata->num = portnr;            /* update to mapped ID */
1544
1545        if (portnr < ATMEL_MAX_UART)
1546                at91_uarts[portnr] = pdev;
1547}
1548
1549void __init at91_set_serial_console(unsigned portnr)
1550{
1551        if (portnr < ATMEL_MAX_UART) {
1552                atmel_default_console_device = at91_uarts[portnr];
1553                at91sam9g45_set_console_clock(at91_uarts[portnr]->id);
1554        }
1555}
1556
1557void __init at91_add_device_serial(void)
1558{
1559        int i;
1560
1561        for (i = 0; i < ATMEL_MAX_UART; i++) {
1562                if (at91_uarts[i])
1563                        platform_device_register(at91_uarts[i]);
1564        }
1565
1566        if (!atmel_default_console_device)
1567                printk(KERN_INFO "AT91: No default serial console defined.\n");
1568}
1569#else
1570void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {}
1571void __init at91_set_serial_console(unsigned portnr) {}
1572void __init at91_add_device_serial(void) {}
1573#endif
1574
1575
1576/* -------------------------------------------------------------------- */
1577/*
1578 * These devices are always present and don't need any board-specific
1579 * setup.
1580 */
1581static int __init at91_add_standard_devices(void)
1582{
1583        at91_add_device_hdmac();
1584        at91_add_device_rtc();
1585        at91_add_device_rtt();
1586        at91_add_device_watchdog();
1587        at91_add_device_tc();
1588        return 0;
1589}
1590
1591arch_initcall(at91_add_standard_devices);
1592