drivers/mfd/timberdale.c

   1 /*
   2  * timberdale.c timberdale FPGA MFD driver
   3  * Copyright (c) 2009 Intel Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17  */
  18
  19 /* Supports:
  20  * Timberdale FPGA
  21  */
  22
  23 #include <linux/kernel.h>
  24 #include <linux/module.h>
  25 #include <linux/pci.h>
  26 #include <linux/msi.h>
  27 #include <linux/mfd/core.h>
  28 #include <linux/slab.h>
  29
  30 #include <linux/timb_gpio.h>
  31
  32 #include <linux/i2c.h>
  33 #include <linux/i2c-ocores.h>
  34 #include <linux/i2c-xiic.h>
  35 #include <linux/i2c/tsc2007.h>
  36
  37 #include <linux/spi/spi.h>
  38 #include <linux/spi/xilinx_spi.h>
  39 #include <linux/spi/max7301.h>
  40 #include <linux/spi/mc33880.h>
  41
  42 #include <linux/platform_data/media/timb_radio.h>
  43 #include <linux/platform_data/media/timb_video.h>
  44
  45 #include <linux/timb_dma.h>
  46
  47 #include <linux/ks8842.h>
  48
  49 #include "timberdale.h"
  50
  51 #define DRIVER_NAME "timberdale"
  52
  53 struct timberdale_device {
  54         resource_size_t         ctl_mapbase;
  55         unsigned char __iomem   *ctl_membase;
  56         struct {
  57                 u32 major;
  58                 u32 minor;
  59                 u32 config;
  60         } fw;
  61 };
  62
  63 /*--------------------------------------------------------------------------*/
  64
  65 static struct tsc2007_platform_data timberdale_tsc2007_platform_data = {
  66         .model = 2003,
  67         .x_plate_ohms = 100
  68 };
  69
  70 static struct i2c_board_info timberdale_i2c_board_info[] = {
  71         {
  72                 I2C_BOARD_INFO("tsc2007", 0x48),
  73                 .platform_data = &timberdale_tsc2007_platform_data,
  74                 .irq = IRQ_TIMBERDALE_TSC_INT
  75         },
  76 };
  77
  78 static struct xiic_i2c_platform_data
  79 timberdale_xiic_platform_data = {
  80         .devices = timberdale_i2c_board_info,
  81         .num_devices = ARRAY_SIZE(timberdale_i2c_board_info)
  82 };
  83
  84 static struct ocores_i2c_platform_data
  85 timberdale_ocores_platform_data = {
  86         .reg_shift = 2,
  87         .clock_khz = 62500,
  88         .devices = timberdale_i2c_board_info,
  89         .num_devices = ARRAY_SIZE(timberdale_i2c_board_info)
  90 };
  91
  92 static const struct resource timberdale_xiic_resources[] = {
  93         {
  94                 .start  = XIICOFFSET,
  95                 .end    = XIICEND,
  96                 .flags  = IORESOURCE_MEM,
  97         },
  98         {
  99                 .start  = IRQ_TIMBERDALE_I2C,
 100                 .end    = IRQ_TIMBERDALE_I2C,
 101                 .flags  = IORESOURCE_IRQ,
 102         },
 103 };
 104
 105 static const struct resource timberdale_ocores_resources[] = {
 106         {
 107                 .start  = OCORESOFFSET,
 108                 .end    = OCORESEND,
 109                 .flags  = IORESOURCE_MEM,
 110         },
 111         {
 112                 .start  = IRQ_TIMBERDALE_I2C,
 113                 .end    = IRQ_TIMBERDALE_I2C,
 114                 .flags  = IORESOURCE_IRQ,
 115         },
 116 };
 117
 118 static const struct max7301_platform_data timberdale_max7301_platform_data = {
 119         .base = 200
 120 };
 121
 122 static const struct mc33880_platform_data timberdale_mc33880_platform_data = {
 123         .base = 100
 124 };
 125
 126 static struct spi_board_info timberdale_spi_16bit_board_info[] = {
 127         {
 128                 .modalias = "max7301",
 129                 .max_speed_hz = 26000,
 130                 .chip_select = 2,
 131                 .mode = SPI_MODE_0,
 132                 .platform_data = &timberdale_max7301_platform_data
 133         },
 134 };
 135
 136 static struct spi_board_info timberdale_spi_8bit_board_info[] = {
 137         {
 138                 .modalias = "mc33880",
 139                 .max_speed_hz = 4000,
 140                 .chip_select = 1,
 141                 .mode = SPI_MODE_1,
 142                 .platform_data = &timberdale_mc33880_platform_data
 143         },
 144 };
 145
 146 static struct xspi_platform_data timberdale_xspi_platform_data = {
 147         .num_chipselect = 3,
 148         /* bits per word and devices will be filled in runtime depending
 149          * on the HW config
 150          */
 151 };
 152
 153 static const struct resource timberdale_spi_resources[] = {
 154         {
 155                 .start  = SPIOFFSET,
 156                 .end    = SPIEND,
 157                 .flags  = IORESOURCE_MEM,
 158         },
 159         {
 160                 .start  = IRQ_TIMBERDALE_SPI,
 161                 .end    = IRQ_TIMBERDALE_SPI,
 162                 .flags  = IORESOURCE_IRQ,
 163         },
 164 };
 165
 166 static struct ks8842_platform_data
 167         timberdale_ks8842_platform_data = {
 168         .rx_dma_channel = DMA_ETH_RX,
 169         .tx_dma_channel = DMA_ETH_TX
 170 };
 171
 172 static const struct resource timberdale_eth_resources[] = {
 173         {
 174                 .start  = ETHOFFSET,
 175                 .end    = ETHEND,
 176                 .flags  = IORESOURCE_MEM,
 177         },
 178         {
 179                 .start  = IRQ_TIMBERDALE_ETHSW_IF,
 180                 .end    = IRQ_TIMBERDALE_ETHSW_IF,
 181                 .flags  = IORESOURCE_IRQ,
 182         },
 183 };
 184
 185 static struct timbgpio_platform_data
 186         timberdale_gpio_platform_data = {
 187         .gpio_base = 0,
 188         .nr_pins = GPIO_NR_PINS,
 189         .irq_base = 200,
 190 };
 191
 192 static const struct resource timberdale_gpio_resources[] = {
 193         {
 194                 .start  = GPIOOFFSET,
 195                 .end    = GPIOEND,
 196                 .flags  = IORESOURCE_MEM,
 197         },
 198         {
 199                 .start  = IRQ_TIMBERDALE_GPIO,
 200                 .end    = IRQ_TIMBERDALE_GPIO,
 201                 .flags  = IORESOURCE_IRQ,
 202         },
 203 };
 204
 205 static const struct resource timberdale_mlogicore_resources[] = {
 206         {
 207                 .start  = MLCOREOFFSET,
 208                 .end    = MLCOREEND,
 209                 .flags  = IORESOURCE_MEM,
 210         },
 211         {
 212                 .start  = IRQ_TIMBERDALE_MLCORE,
 213                 .end    = IRQ_TIMBERDALE_MLCORE,
 214                 .flags  = IORESOURCE_IRQ,
 215         },
 216         {
 217                 .start  = IRQ_TIMBERDALE_MLCORE_BUF,
 218                 .end    = IRQ_TIMBERDALE_MLCORE_BUF,
 219                 .flags  = IORESOURCE_IRQ,
 220         },
 221 };
 222
 223 static const struct resource timberdale_uart_resources[] = {
 224         {
 225                 .start  = UARTOFFSET,
 226                 .end    = UARTEND,
 227                 .flags  = IORESOURCE_MEM,
 228         },
 229         {
 230                 .start  = IRQ_TIMBERDALE_UART,
 231                 .end    = IRQ_TIMBERDALE_UART,
 232                 .flags  = IORESOURCE_IRQ,
 233         },
 234 };
 235
 236 static const struct resource timberdale_uartlite_resources[] = {
 237         {
 238                 .start  = UARTLITEOFFSET,
 239                 .end    = UARTLITEEND,
 240                 .flags  = IORESOURCE_MEM,
 241         },
 242         {
 243                 .start  = IRQ_TIMBERDALE_UARTLITE,
 244                 .end    = IRQ_TIMBERDALE_UARTLITE,
 245                 .flags  = IORESOURCE_IRQ,
 246         },
 247 };
 248
 249 static struct i2c_board_info timberdale_adv7180_i2c_board_info = {
 250         /* Requires jumper JP9 to be off */
 251         I2C_BOARD_INFO("adv7180", 0x42 >> 1),
 252         .irq = IRQ_TIMBERDALE_ADV7180
 253 };
 254
 255 static struct timb_video_platform_data
 256         timberdale_video_platform_data = {
 257         .dma_channel = DMA_VIDEO_RX,
 258         .i2c_adapter = 0,
 259         .encoder = {
 260                 .info = &timberdale_adv7180_i2c_board_info
 261         }
 262 };
 263
 264 static const struct resource
 265 timberdale_radio_resources[] = {
 266         {
 267                 .start  = RDSOFFSET,
 268                 .end    = RDSEND,
 269                 .flags  = IORESOURCE_MEM,
 270         },
 271         {
 272                 .start  = IRQ_TIMBERDALE_RDS,
 273                 .end    = IRQ_TIMBERDALE_RDS,
 274                 .flags  = IORESOURCE_IRQ,
 275         },
 276 };
 277
 278 static struct i2c_board_info timberdale_tef6868_i2c_board_info = {
 279         I2C_BOARD_INFO("tef6862", 0x60)
 280 };
 281
 282 static struct i2c_board_info timberdale_saa7706_i2c_board_info = {
 283         I2C_BOARD_INFO("saa7706h", 0x1C)
 284 };
 285
 286 static struct timb_radio_platform_data
 287         timberdale_radio_platform_data = {
 288         .i2c_adapter = 0,
 289         .tuner = &timberdale_tef6868_i2c_board_info,
 290         .dsp = &timberdale_saa7706_i2c_board_info
 291 };
 292
 293 static const struct resource timberdale_video_resources[] = {
 294         {
 295                 .start  = LOGIWOFFSET,
 296                 .end    = LOGIWEND,
 297                 .flags  = IORESOURCE_MEM,
 298         },
 299         /*
 300         note that the "frame buffer" is located in DMA area
 301         starting at 0x1200000
 302         */
 303 };
 304
 305 static struct timb_dma_platform_data timb_dma_platform_data = {
 306         .nr_channels = 10,
 307         .channels = {
 308                 {
 309                         /* UART RX */
 310                         .rx = true,
 311                         .descriptors = 2,
 312                         .descriptor_elements = 1
 313                 },
 314                 {
 315                         /* UART TX */
 316                         .rx = false,
 317                         .descriptors = 2,
 318                         .descriptor_elements = 1
 319                 },
 320                 {
 321                         /* MLB RX */
 322                         .rx = true,
 323                         .descriptors = 2,
 324                         .descriptor_elements = 1
 325                 },
 326                 {
 327                         /* MLB TX */
 328                         .rx = false,
 329                         .descriptors = 2,
 330                         .descriptor_elements = 1
 331                 },
 332                 {
 333                         /* Video RX */
 334                         .rx = true,
 335                         .bytes_per_line = 1440,
 336                         .descriptors = 2,
 337                         .descriptor_elements = 16
 338                 },
 339                 {
 340                         /* Video framedrop */
 341                 },
 342                 {
 343                         /* SDHCI RX */
 344                         .rx = true,
 345                 },
 346                 {
 347                         /* SDHCI TX */
 348                 },
 349                 {
 350                         /* ETH RX */
 351                         .rx = true,
 352                         .descriptors = 2,
 353                         .descriptor_elements = 1
 354                 },
 355                 {
 356                         /* ETH TX */
 357                         .rx = false,
 358                         .descriptors = 2,
 359                         .descriptor_elements = 1
 360                 },
 361         }
 362 };
 363
 364 static const struct resource timberdale_dma_resources[] = {
 365         {
 366                 .start  = DMAOFFSET,
 367                 .end    = DMAEND,
 368                 .flags  = IORESOURCE_MEM,
 369         },
 370         {
 371                 .start  = IRQ_TIMBERDALE_DMA,
 372                 .end    = IRQ_TIMBERDALE_DMA,
 373                 .flags  = IORESOURCE_IRQ,
 374         },
 375 };
 376
 377 static const struct mfd_cell timberdale_cells_bar0_cfg0[] = {
 378         {
 379                 .name = "timb-dma",
 380                 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
 381                 .resources = timberdale_dma_resources,
 382                 .platform_data = &timb_dma_platform_data,
 383                 .pdata_size = sizeof(timb_dma_platform_data),
 384         },
 385         {
 386                 .name = "timb-uart",
 387                 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
 388                 .resources = timberdale_uart_resources,
 389         },
 390         {
 391                 .name = "xiic-i2c",
 392                 .num_resources = ARRAY_SIZE(timberdale_xiic_resources),
 393                 .resources = timberdale_xiic_resources,
 394                 .platform_data = &timberdale_xiic_platform_data,
 395                 .pdata_size = sizeof(timberdale_xiic_platform_data),
 396         },
 397         {
 398                 .name = "timb-gpio",
 399                 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
 400                 .resources = timberdale_gpio_resources,
 401                 .platform_data = &timberdale_gpio_platform_data,
 402                 .pdata_size = sizeof(timberdale_gpio_platform_data),
 403         },
 404         {
 405                 .name = "timb-video",
 406                 .num_resources = ARRAY_SIZE(timberdale_video_resources),
 407                 .resources = timberdale_video_resources,
 408                 .platform_data = &timberdale_video_platform_data,
 409                 .pdata_size = sizeof(timberdale_video_platform_data),
 410         },
 411         {
 412                 .name = "timb-radio",
 413                 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
 414                 .resources = timberdale_radio_resources,
 415                 .platform_data = &timberdale_radio_platform_data,
 416                 .pdata_size = sizeof(timberdale_radio_platform_data),
 417         },
 418         {
 419                 .name = "xilinx_spi",
 420                 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
 421                 .resources = timberdale_spi_resources,
 422                 .platform_data = &timberdale_xspi_platform_data,
 423                 .pdata_size = sizeof(timberdale_xspi_platform_data),
 424         },
 425         {
 426                 .name = "ks8842",
 427                 .num_resources = ARRAY_SIZE(timberdale_eth_resources),
 428                 .resources = timberdale_eth_resources,
 429                 .platform_data = &timberdale_ks8842_platform_data,
 430                 .pdata_size = sizeof(timberdale_ks8842_platform_data),
 431         },
 432 };
 433
 434 static const struct mfd_cell timberdale_cells_bar0_cfg1[] = {
 435         {
 436                 .name = "timb-dma",
 437                 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
 438                 .resources = timberdale_dma_resources,
 439                 .platform_data = &timb_dma_platform_data,
 440                 .pdata_size = sizeof(timb_dma_platform_data),
 441         },
 442         {
 443                 .name = "timb-uart",
 444                 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
 445                 .resources = timberdale_uart_resources,
 446         },
 447         {
 448                 .name = "uartlite",
 449                 .num_resources = ARRAY_SIZE(timberdale_uartlite_resources),
 450                 .resources = timberdale_uartlite_resources,
 451         },
 452         {
 453                 .name = "xiic-i2c",
 454                 .num_resources = ARRAY_SIZE(timberdale_xiic_resources),
 455                 .resources = timberdale_xiic_resources,
 456                 .platform_data = &timberdale_xiic_platform_data,
 457                 .pdata_size = sizeof(timberdale_xiic_platform_data),
 458         },
 459         {
 460                 .name = "timb-gpio",
 461                 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
 462                 .resources = timberdale_gpio_resources,
 463                 .platform_data = &timberdale_gpio_platform_data,
 464                 .pdata_size = sizeof(timberdale_gpio_platform_data),
 465         },
 466         {
 467                 .name = "timb-mlogicore",
 468                 .num_resources = ARRAY_SIZE(timberdale_mlogicore_resources),
 469                 .resources = timberdale_mlogicore_resources,
 470         },
 471         {
 472                 .name = "timb-video",
 473                 .num_resources = ARRAY_SIZE(timberdale_video_resources),
 474                 .resources = timberdale_video_resources,
 475                 .platform_data = &timberdale_video_platform_data,
 476                 .pdata_size = sizeof(timberdale_video_platform_data),
 477         },
 478         {
 479                 .name = "timb-radio",
 480                 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
 481                 .resources = timberdale_radio_resources,
 482                 .platform_data = &timberdale_radio_platform_data,
 483                 .pdata_size = sizeof(timberdale_radio_platform_data),
 484         },
 485         {
 486                 .name = "xilinx_spi",
 487                 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
 488                 .resources = timberdale_spi_resources,
 489                 .platform_data = &timberdale_xspi_platform_data,
 490                 .pdata_size = sizeof(timberdale_xspi_platform_data),
 491         },
 492         {
 493                 .name = "ks8842",
 494                 .num_resources = ARRAY_SIZE(timberdale_eth_resources),
 495                 .resources = timberdale_eth_resources,
 496                 .platform_data = &timberdale_ks8842_platform_data,
 497                 .pdata_size = sizeof(timberdale_ks8842_platform_data),
 498         },
 499 };
 500
 501 static const struct mfd_cell timberdale_cells_bar0_cfg2[] = {
 502         {
 503                 .name = "timb-dma",
 504                 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
 505                 .resources = timberdale_dma_resources,
 506                 .platform_data = &timb_dma_platform_data,
 507                 .pdata_size = sizeof(timb_dma_platform_data),
 508         },
 509         {
 510                 .name = "timb-uart",
 511                 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
 512                 .resources = timberdale_uart_resources,
 513         },
 514         {
 515                 .name = "xiic-i2c",
 516                 .num_resources = ARRAY_SIZE(timberdale_xiic_resources),
 517                 .resources = timberdale_xiic_resources,
 518                 .platform_data = &timberdale_xiic_platform_data,
 519                 .pdata_size = sizeof(timberdale_xiic_platform_data),
 520         },
 521         {
 522                 .name = "timb-gpio",
 523                 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
 524                 .resources = timberdale_gpio_resources,
 525                 .platform_data = &timberdale_gpio_platform_data,
 526                 .pdata_size = sizeof(timberdale_gpio_platform_data),
 527         },
 528         {
 529                 .name = "timb-video",
 530                 .num_resources = ARRAY_SIZE(timberdale_video_resources),
 531                 .resources = timberdale_video_resources,
 532                 .platform_data = &timberdale_video_platform_data,
 533                 .pdata_size = sizeof(timberdale_video_platform_data),
 534         },
 535         {
 536                 .name = "timb-radio",
 537                 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
 538                 .resources = timberdale_radio_resources,
 539                 .platform_data = &timberdale_radio_platform_data,
 540                 .pdata_size = sizeof(timberdale_radio_platform_data),
 541         },
 542         {
 543                 .name = "xilinx_spi",
 544                 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
 545                 .resources = timberdale_spi_resources,
 546                 .platform_data = &timberdale_xspi_platform_data,
 547                 .pdata_size = sizeof(timberdale_xspi_platform_data),
 548         },
 549 };
 550
 551 static const struct mfd_cell timberdale_cells_bar0_cfg3[] = {
 552         {
 553                 .name = "timb-dma",
 554                 .num_resources = ARRAY_SIZE(timberdale_dma_resources),
 555                 .resources = timberdale_dma_resources,
 556                 .platform_data = &timb_dma_platform_data,
 557                 .pdata_size = sizeof(timb_dma_platform_data),
 558         },
 559         {
 560                 .name = "timb-uart",
 561                 .num_resources = ARRAY_SIZE(timberdale_uart_resources),
 562                 .resources = timberdale_uart_resources,
 563         },
 564         {
 565                 .name = "ocores-i2c",
 566                 .num_resources = ARRAY_SIZE(timberdale_ocores_resources),
 567                 .resources = timberdale_ocores_resources,
 568                 .platform_data = &timberdale_ocores_platform_data,
 569                 .pdata_size = sizeof(timberdale_ocores_platform_data),
 570         },
 571         {
 572                 .name = "timb-gpio",
 573                 .num_resources = ARRAY_SIZE(timberdale_gpio_resources),
 574                 .resources = timberdale_gpio_resources,
 575                 .platform_data = &timberdale_gpio_platform_data,
 576                 .pdata_size = sizeof(timberdale_gpio_platform_data),
 577         },
 578         {
 579                 .name = "timb-video",
 580                 .num_resources = ARRAY_SIZE(timberdale_video_resources),
 581                 .resources = timberdale_video_resources,
 582                 .platform_data = &timberdale_video_platform_data,
 583                 .pdata_size = sizeof(timberdale_video_platform_data),
 584         },
 585         {
 586                 .name = "timb-radio",
 587                 .num_resources = ARRAY_SIZE(timberdale_radio_resources),
 588                 .resources = timberdale_radio_resources,
 589                 .platform_data = &timberdale_radio_platform_data,
 590                 .pdata_size = sizeof(timberdale_radio_platform_data),
 591         },
 592         {
 593                 .name = "xilinx_spi",
 594                 .num_resources = ARRAY_SIZE(timberdale_spi_resources),
 595                 .resources = timberdale_spi_resources,
 596                 .platform_data = &timberdale_xspi_platform_data,
 597                 .pdata_size = sizeof(timberdale_xspi_platform_data),
 598         },
 599         {
 600                 .name = "ks8842",
 601                 .num_resources = ARRAY_SIZE(timberdale_eth_resources),
 602                 .resources = timberdale_eth_resources,
 603                 .platform_data = &timberdale_ks8842_platform_data,
 604                 .pdata_size = sizeof(timberdale_ks8842_platform_data),
 605         },
 606 };
 607
 608 static const struct resource timberdale_sdhc_resources[] = {
 609         /* located in bar 1 and bar 2 */
 610         {
 611                 .start  = SDHC0OFFSET,
 612                 .end    = SDHC0END,
 613                 .flags  = IORESOURCE_MEM,
 614         },
 615         {
 616                 .start  = IRQ_TIMBERDALE_SDHC,
 617                 .end    = IRQ_TIMBERDALE_SDHC,
 618                 .flags  = IORESOURCE_IRQ,
 619         },
 620 };
 621
 622 static const struct mfd_cell timberdale_cells_bar1[] = {
 623         {
 624                 .name = "sdhci",
 625                 .num_resources = ARRAY_SIZE(timberdale_sdhc_resources),
 626                 .resources = timberdale_sdhc_resources,
 627         },
 628 };
 629
 630 static const struct mfd_cell timberdale_cells_bar2[] = {
 631         {
 632                 .name = "sdhci",
 633                 .num_resources = ARRAY_SIZE(timberdale_sdhc_resources),
 634                 .resources = timberdale_sdhc_resources,
 635         },
 636 };
 637
 638 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
 639         char *buf)
 640 {
 641         struct pci_dev *pdev = to_pci_dev(dev);
 642         struct timberdale_device *priv = pci_get_drvdata(pdev);
 643
 644         return sprintf(buf, "%d.%d.%d\n", priv->fw.major, priv->fw.minor,
 645                 priv->fw.config);
 646 }
 647
 648 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
 649
 650 /*--------------------------------------------------------------------------*/
 651
 652 static int timb_probe(struct pci_dev *dev,
 653         const struct pci_device_id *id)
 654 {
 655         struct timberdale_device *priv;
 656         int err, i;
 657         resource_size_t mapbase;
 658         struct msix_entry *msix_entries = NULL;
 659         u8 ip_setup;
 660
 661         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 662         if (!priv)
 663                 return -ENOMEM;
 664
 665         pci_set_drvdata(dev, priv);
 666
 667         err = pci_enable_device(dev);
 668         if (err)
 669                 goto err_enable;
 670
 671         mapbase = pci_resource_start(dev, 0);
 672         if (!mapbase) {
 673                 dev_err(&dev->dev, "No resource\n");
 674                 goto err_start;
 675         }
 676
 677         /* create a resource for the PCI master register */
 678         priv->ctl_mapbase = mapbase + CHIPCTLOFFSET;
 679         if (!request_mem_region(priv->ctl_mapbase, CHIPCTLSIZE, "timb-ctl")) {
 680                 dev_err(&dev->dev, "Failed to request ctl mem\n");
 681                 goto err_start;
 682         }
 683
 684         priv->ctl_membase = ioremap(priv->ctl_mapbase, CHIPCTLSIZE);
 685         if (!priv->ctl_membase) {
 686                 dev_err(&dev->dev, "ioremap failed for ctl mem\n");
 687                 goto err_ioremap;
 688         }
 689
 690         /* read the HW config */
 691         priv->fw.major = ioread32(priv->ctl_membase + TIMB_REV_MAJOR);
 692         priv->fw.minor = ioread32(priv->ctl_membase + TIMB_REV_MINOR);
 693         priv->fw.config = ioread32(priv->ctl_membase + TIMB_HW_CONFIG);
 694
 695         if (priv->fw.major > TIMB_SUPPORTED_MAJOR) {
 696                 dev_err(&dev->dev, "The driver supports an older "
 697                         "version of the FPGA, please update the driver to "
 698                         "support %d.%d\n", priv->fw.major, priv->fw.minor);
 699                 goto err_config;
 700         }
 701         if (priv->fw.major < TIMB_SUPPORTED_MAJOR ||
 702                 priv->fw.minor < TIMB_REQUIRED_MINOR) {
 703                 dev_err(&dev->dev, "The FPGA image is too old (%d.%d), "
 704                         "please upgrade the FPGA to at least: %d.%d\n",
 705                         priv->fw.major, priv->fw.minor,
 706                         TIMB_SUPPORTED_MAJOR, TIMB_REQUIRED_MINOR);
 707                 goto err_config;
 708         }
 709
 710         msix_entries = kzalloc(TIMBERDALE_NR_IRQS * sizeof(*msix_entries),
 711                 GFP_KERNEL);
 712         if (!msix_entries)
 713                 goto err_config;
 714
 715         for (i = 0; i < TIMBERDALE_NR_IRQS; i++)
 716                 msix_entries[i].entry = i;
 717
 718         err = pci_enable_msix_exact(dev, msix_entries, TIMBERDALE_NR_IRQS);
 719         if (err) {
 720                 dev_err(&dev->dev,
 721                         "MSI-X init failed: %d, expected entries: %d\n",
 722                         err, TIMBERDALE_NR_IRQS);
 723                 goto err_msix;
 724         }
 725
 726         err = device_create_file(&dev->dev, &dev_attr_fw_ver);
 727         if (err)
 728                 goto err_create_file;
 729
 730         /* Reset all FPGA PLB peripherals */
 731         iowrite32(0x1, priv->ctl_membase + TIMB_SW_RST);
 732
 733         /* update IRQ offsets in I2C board info */
 734         for (i = 0; i < ARRAY_SIZE(timberdale_i2c_board_info); i++)
 735                 timberdale_i2c_board_info[i].irq =
 736                         msix_entries[timberdale_i2c_board_info[i].irq].vector;
 737
 738         /* Update the SPI configuration depending on the HW (8 or 16 bit) */
 739         if (priv->fw.config & TIMB_HW_CONFIG_SPI_8BIT) {
 740                 timberdale_xspi_platform_data.bits_per_word = 8;
 741                 timberdale_xspi_platform_data.devices =
 742                         timberdale_spi_8bit_board_info;
 743                 timberdale_xspi_platform_data.num_devices =
 744                         ARRAY_SIZE(timberdale_spi_8bit_board_info);
 745         } else {
 746                 timberdale_xspi_platform_data.bits_per_word = 16;
 747                 timberdale_xspi_platform_data.devices =
 748                         timberdale_spi_16bit_board_info;
 749                 timberdale_xspi_platform_data.num_devices =
 750                         ARRAY_SIZE(timberdale_spi_16bit_board_info);
 751         }
 752
 753         ip_setup = priv->fw.config & TIMB_HW_VER_MASK;
 754         switch (ip_setup) {
 755         case TIMB_HW_VER0:
 756                 err = mfd_add_devices(&dev->dev, -1,
 757                         timberdale_cells_bar0_cfg0,
 758                         ARRAY_SIZE(timberdale_cells_bar0_cfg0),
 759                         &dev->resource[0], msix_entries[0].vector, NULL);
 760                 break;
 761         case TIMB_HW_VER1:
 762                 err = mfd_add_devices(&dev->dev, -1,
 763                         timberdale_cells_bar0_cfg1,
 764                         ARRAY_SIZE(timberdale_cells_bar0_cfg1),
 765                         &dev->resource[0], msix_entries[0].vector, NULL);
 766                 break;
 767         case TIMB_HW_VER2:
 768                 err = mfd_add_devices(&dev->dev, -1,
 769                         timberdale_cells_bar0_cfg2,
 770                         ARRAY_SIZE(timberdale_cells_bar0_cfg2),
 771                         &dev->resource[0], msix_entries[0].vector, NULL);
 772                 break;
 773         case TIMB_HW_VER3:
 774                 err = mfd_add_devices(&dev->dev, -1,
 775                         timberdale_cells_bar0_cfg3,
 776                         ARRAY_SIZE(timberdale_cells_bar0_cfg3),
 777                         &dev->resource[0], msix_entries[0].vector, NULL);
 778                 break;
 779         default:
 780                 dev_err(&dev->dev, "Uknown IP setup: %d.%d.%d\n",
 781                         priv->fw.major, priv->fw.minor, ip_setup);
 782                 err = -ENODEV;
 783                 goto err_mfd;
 784         }
 785
 786         if (err) {
 787                 dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
 788                 goto err_mfd;
 789         }
 790
 791         err = mfd_add_devices(&dev->dev, 0,
 792                 timberdale_cells_bar1, ARRAY_SIZE(timberdale_cells_bar1),
 793                 &dev->resource[1], msix_entries[0].vector, NULL);
 794         if (err) {
 795                 dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
 796                 goto err_mfd2;
 797         }
 798
 799         /* only version 0 and 3 have the iNand routed to SDHCI */
 800         if (((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER0) ||
 801                 ((priv->fw.config & TIMB_HW_VER_MASK) == TIMB_HW_VER3)) {
 802                 err = mfd_add_devices(&dev->dev, 1, timberdale_cells_bar2,
 803                         ARRAY_SIZE(timberdale_cells_bar2),
 804                         &dev->resource[2], msix_entries[0].vector, NULL);
 805                 if (err) {
 806                         dev_err(&dev->dev, "mfd_add_devices failed: %d\n", err);
 807                         goto err_mfd2;
 808                 }
 809         }
 810
 811         kfree(msix_entries);
 812
 813         dev_info(&dev->dev,
 814                 "Found Timberdale Card. Rev: %d.%d, HW config: 0x%02x\n",
 815                 priv->fw.major, priv->fw.minor, priv->fw.config);
 816
 817         return 0;
 818
 819 err_mfd2:
 820         mfd_remove_devices(&dev->dev);
 821 err_mfd:
 822         device_remove_file(&dev->dev, &dev_attr_fw_ver);
 823 err_create_file:
 824         pci_disable_msix(dev);
 825 err_msix:
 826         kfree(msix_entries);
 827 err_config:
 828         iounmap(priv->ctl_membase);
 829 err_ioremap:
 830         release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
 831 err_start:
 832         pci_disable_device(dev);
 833 err_enable:
 834         kfree(priv);
 835         return -ENODEV;
 836 }
 837
 838 static void timb_remove(struct pci_dev *dev)
 839 {
 840         struct timberdale_device *priv = pci_get_drvdata(dev);
 841
 842         mfd_remove_devices(&dev->dev);
 843
 844         device_remove_file(&dev->dev, &dev_attr_fw_ver);
 845
 846         iounmap(priv->ctl_membase);
 847         release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
 848
 849         pci_disable_msix(dev);
 850         pci_disable_device(dev);
 851         kfree(priv);
 852 }
 853
 854 static const struct pci_device_id timberdale_pci_tbl[] = {
 855         { PCI_DEVICE(PCI_VENDOR_ID_TIMB, PCI_DEVICE_ID_TIMB) },
 856         { 0 }
 857 };
 858 MODULE_DEVICE_TABLE(pci, timberdale_pci_tbl);
 859
 860 static struct pci_driver timberdale_pci_driver = {
 861         .name = DRIVER_NAME,
 862         .id_table = timberdale_pci_tbl,
 863         .probe = timb_probe,
 864         .remove = timb_remove,
 865 };
 866
 867 module_pci_driver(timberdale_pci_driver);
 868
 869 MODULE_AUTHOR("Mocean Laboratories <info@mocean-labs.com>");
 870 MODULE_VERSION(DRV_VERSION);
 871 MODULE_LICENSE("GPL v2");