arch/arm/mach-kirkwood/common.c

   1 /*
   2  * arch/arm/mach-kirkwood/common.c
   3  *
   4  * Core functions for Marvell Kirkwood SoCs
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/mbus.h>
  16 #include <linux/mv643xx_eth.h>
  17 #include <linux/ata_platform.h>
  18 #include <linux/spi/orion_spi.h>
  19 #include <net/dsa.h>
  20 #include <asm/page.h>
  21 #include <asm/timex.h>
  22 #include <asm/mach/map.h>
  23 #include <asm/mach/time.h>
  24 #include <mach/kirkwood.h>
  25 #include <plat/cache-feroceon-l2.h>
  26 #include <plat/ehci-orion.h>
  27 #include <plat/mvsdio.h>
  28 #include <plat/mv_xor.h>
  29 #include <plat/orion_nand.h>
  30 #include <plat/time.h>
  31 #include "common.h"
  32
  33 /*****************************************************************************
  34  * I/O Address Mapping
  35  ****************************************************************************/
  36 static struct map_desc kirkwood_io_desc[] __initdata = {
  37         {
  38                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  39                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  40                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  41                 .type           = MT_DEVICE,
  42         }, {
  43                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  44                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  45                 .length         = KIRKWOOD_REGS_SIZE,
  46                 .type           = MT_DEVICE,
  47         },
  48 };
  49
  50 void __init kirkwood_map_io(void)
  51 {
  52         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  53 }
  54
  55
  56 /*****************************************************************************
  57  * EHCI
  58  ****************************************************************************/
  59 static struct orion_ehci_data kirkwood_ehci_data = {
  60         .dram           = &kirkwood_mbus_dram_info,
  61         .phy_version    = EHCI_PHY_NA,
  62 };
  63
  64 static u64 ehci_dmamask = 0xffffffffUL;
  65
  66
  67 /*****************************************************************************
  68  * EHCI0
  69  ****************************************************************************/
  70 static struct resource kirkwood_ehci_resources[] = {
  71         {
  72                 .start  = USB_PHYS_BASE,
  73                 .end    = USB_PHYS_BASE + 0x0fff,
  74                 .flags  = IORESOURCE_MEM,
  75         }, {
  76                 .start  = IRQ_KIRKWOOD_USB,
  77                 .end    = IRQ_KIRKWOOD_USB,
  78                 .flags  = IORESOURCE_IRQ,
  79         },
  80 };
  81
  82 static struct platform_device kirkwood_ehci = {
  83         .name           = "orion-ehci",
  84         .id             = 0,
  85         .dev            = {
  86                 .dma_mask               = &ehci_dmamask,
  87                 .coherent_dma_mask      = 0xffffffff,
  88                 .platform_data          = &kirkwood_ehci_data,
  89         },
  90         .resource       = kirkwood_ehci_resources,
  91         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
  92 };
  93
  94 void __init kirkwood_ehci_init(void)
  95 {
  96         platform_device_register(&kirkwood_ehci);
  97 }
  98
  99
 100 /*****************************************************************************
 101  * GE00
 102  ****************************************************************************/
 103 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 104         .dram           = &kirkwood_mbus_dram_info,
 105 };
 106
 107 static struct resource kirkwood_ge00_shared_resources[] = {
 108         {
 109                 .name   = "ge00 base",
 110                 .start  = GE00_PHYS_BASE + 0x2000,
 111                 .end    = GE00_PHYS_BASE + 0x3fff,
 112                 .flags  = IORESOURCE_MEM,
 113         }, {
 114                 .name   = "ge00 err irq",
 115                 .start  = IRQ_KIRKWOOD_GE00_ERR,
 116                 .end    = IRQ_KIRKWOOD_GE00_ERR,
 117                 .flags  = IORESOURCE_IRQ,
 118         },
 119 };
 120
 121 static struct platform_device kirkwood_ge00_shared = {
 122         .name           = MV643XX_ETH_SHARED_NAME,
 123         .id             = 0,
 124         .dev            = {
 125                 .platform_data  = &kirkwood_ge00_shared_data,
 126         },
 127         .num_resources  = ARRAY_SIZE(kirkwood_ge00_shared_resources),
 128         .resource       = kirkwood_ge00_shared_resources,
 129 };
 130
 131 static struct resource kirkwood_ge00_resources[] = {
 132         {
 133                 .name   = "ge00 irq",
 134                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 135                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 136                 .flags  = IORESOURCE_IRQ,
 137         },
 138 };
 139
 140 static struct platform_device kirkwood_ge00 = {
 141         .name           = MV643XX_ETH_NAME,
 142         .id             = 0,
 143         .num_resources  = 1,
 144         .resource       = kirkwood_ge00_resources,
 145 };
 146
 147 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 148 {
 149         eth_data->shared = &kirkwood_ge00_shared;
 150         kirkwood_ge00.dev.platform_data = eth_data;
 151
 152         platform_device_register(&kirkwood_ge00_shared);
 153         platform_device_register(&kirkwood_ge00);
 154 }
 155
 156
 157 /*****************************************************************************
 158  * GE01
 159  ****************************************************************************/
 160 struct mv643xx_eth_shared_platform_data kirkwood_ge01_shared_data = {
 161         .dram           = &kirkwood_mbus_dram_info,
 162         .shared_smi     = &kirkwood_ge00_shared,
 163 };
 164
 165 static struct resource kirkwood_ge01_shared_resources[] = {
 166         {
 167                 .name   = "ge01 base",
 168                 .start  = GE01_PHYS_BASE + 0x2000,
 169                 .end    = GE01_PHYS_BASE + 0x3fff,
 170                 .flags  = IORESOURCE_MEM,
 171         }, {
 172                 .name   = "ge01 err irq",
 173                 .start  = IRQ_KIRKWOOD_GE01_ERR,
 174                 .end    = IRQ_KIRKWOOD_GE01_ERR,
 175                 .flags  = IORESOURCE_IRQ,
 176         },
 177 };
 178
 179 static struct platform_device kirkwood_ge01_shared = {
 180         .name           = MV643XX_ETH_SHARED_NAME,
 181         .id             = 1,
 182         .dev            = {
 183                 .platform_data  = &kirkwood_ge01_shared_data,
 184         },
 185         .num_resources  = ARRAY_SIZE(kirkwood_ge01_shared_resources),
 186         .resource       = kirkwood_ge01_shared_resources,
 187 };
 188
 189 static struct resource kirkwood_ge01_resources[] = {
 190         {
 191                 .name   = "ge01 irq",
 192                 .start  = IRQ_KIRKWOOD_GE01_SUM,
 193                 .end    = IRQ_KIRKWOOD_GE01_SUM,
 194                 .flags  = IORESOURCE_IRQ,
 195         },
 196 };
 197
 198 static struct platform_device kirkwood_ge01 = {
 199         .name           = MV643XX_ETH_NAME,
 200         .id             = 1,
 201         .num_resources  = 1,
 202         .resource       = kirkwood_ge01_resources,
 203 };
 204
 205 void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 206 {
 207         eth_data->shared = &kirkwood_ge01_shared;
 208         kirkwood_ge01.dev.platform_data = eth_data;
 209
 210         platform_device_register(&kirkwood_ge01_shared);
 211         platform_device_register(&kirkwood_ge01);
 212 }
 213
 214
 215 /*****************************************************************************
 216  * Ethernet switch
 217  ****************************************************************************/
 218 static struct resource kirkwood_switch_resources[] = {
 219         {
 220                 .start  = 0,
 221                 .end    = 0,
 222                 .flags  = IORESOURCE_IRQ,
 223         },
 224 };
 225
 226 static struct platform_device kirkwood_switch_device = {
 227         .name           = "dsa",
 228         .id             = 0,
 229         .num_resources  = 0,
 230         .resource       = kirkwood_switch_resources,
 231 };
 232
 233 void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
 234 {
 235         if (irq != NO_IRQ) {
 236                 kirkwood_switch_resources[0].start = irq;
 237                 kirkwood_switch_resources[0].end = irq;
 238                 kirkwood_switch_device.num_resources = 1;
 239         }
 240
 241         d->mii_bus = &kirkwood_ge00_shared.dev;
 242         d->netdev = &kirkwood_ge00.dev;
 243         kirkwood_switch_device.dev.platform_data = d;
 244
 245         platform_device_register(&kirkwood_switch_device);
 246 }
 247
 248
 249 /*****************************************************************************
 250  * SoC RTC
 251  ****************************************************************************/
 252 static struct resource kirkwood_rtc_resource = {
 253         .start  = RTC_PHYS_BASE,
 254         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 255         .flags  = IORESOURCE_MEM,
 256 };
 257
 258 void __init kirkwood_rtc_init(void)
 259 {
 260         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 261 }
 262
 263
 264 /*****************************************************************************
 265  * SATA
 266  ****************************************************************************/
 267 static struct resource kirkwood_sata_resources[] = {
 268         {
 269                 .name   = "sata base",
 270                 .start  = SATA_PHYS_BASE,
 271                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 272                 .flags  = IORESOURCE_MEM,
 273         }, {
 274                 .name   = "sata irq",
 275                 .start  = IRQ_KIRKWOOD_SATA,
 276                 .end    = IRQ_KIRKWOOD_SATA,
 277                 .flags  = IORESOURCE_IRQ,
 278         },
 279 };
 280
 281 static struct platform_device kirkwood_sata = {
 282         .name           = "sata_mv",
 283         .id             = 0,
 284         .dev            = {
 285                 .coherent_dma_mask      = 0xffffffff,
 286         },
 287         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 288         .resource       = kirkwood_sata_resources,
 289 };
 290
 291 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 292 {
 293         sata_data->dram = &kirkwood_mbus_dram_info;
 294         kirkwood_sata.dev.platform_data = sata_data;
 295         platform_device_register(&kirkwood_sata);
 296 }
 297
 298
 299 /*****************************************************************************
 300  * SD/SDIO/MMC
 301  ****************************************************************************/
 302 static struct resource mvsdio_resources[] = {
 303         [0] = {
 304                 .start  = SDIO_PHYS_BASE,
 305                 .end    = SDIO_PHYS_BASE + SZ_1K - 1,
 306                 .flags  = IORESOURCE_MEM,
 307         },
 308         [1] = {
 309                 .start  = IRQ_KIRKWOOD_SDIO,
 310                 .end    = IRQ_KIRKWOOD_SDIO,
 311                 .flags  = IORESOURCE_IRQ,
 312         },
 313 };
 314
 315 static u64 mvsdio_dmamask = 0xffffffffUL;
 316
 317 static struct platform_device kirkwood_sdio = {
 318         .name           = "mvsdio",
 319         .id             = -1,
 320         .dev            = {
 321                 .dma_mask = &mvsdio_dmamask,
 322                 .coherent_dma_mask = 0xffffffff,
 323         },
 324         .num_resources  = ARRAY_SIZE(mvsdio_resources),
 325         .resource       = mvsdio_resources,
 326 };
 327
 328 void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 329 {
 330         u32 dev, rev;
 331
 332         kirkwood_pcie_id(&dev, &rev);
 333         if (rev == 0)  /* catch all Kirkwood Z0's */
 334                 mvsdio_data->clock = 100000000;
 335         else
 336                 mvsdio_data->clock = 200000000;
 337         mvsdio_data->dram = &kirkwood_mbus_dram_info;
 338         kirkwood_sdio.dev.platform_data = mvsdio_data;
 339         platform_device_register(&kirkwood_sdio);
 340 }
 341
 342
 343 /*****************************************************************************
 344  * SPI
 345  ****************************************************************************/
 346 static struct orion_spi_info kirkwood_spi_plat_data = {
 347 };
 348
 349 static struct resource kirkwood_spi_resources[] = {
 350         {
 351                 .start  = SPI_PHYS_BASE,
 352                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 353                 .flags  = IORESOURCE_MEM,
 354         },
 355 };
 356
 357 static struct platform_device kirkwood_spi = {
 358         .name           = "orion_spi",
 359         .id             = 0,
 360         .resource       = kirkwood_spi_resources,
 361         .dev            = {
 362                 .platform_data  = &kirkwood_spi_plat_data,
 363         },
 364         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 365 };
 366
 367 void __init kirkwood_spi_init()
 368 {
 369         platform_device_register(&kirkwood_spi);
 370 }
 371
 372
 373 /*****************************************************************************
 374  * UART0
 375  ****************************************************************************/
 376 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 377         {
 378                 .mapbase        = UART0_PHYS_BASE,
 379                 .membase        = (char *)UART0_VIRT_BASE,
 380                 .irq            = IRQ_KIRKWOOD_UART_0,
 381                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 382                 .iotype         = UPIO_MEM,
 383                 .regshift       = 2,
 384                 .uartclk        = 0,
 385         }, {
 386         },
 387 };
 388
 389 static struct resource kirkwood_uart0_resources[] = {
 390         {
 391                 .start          = UART0_PHYS_BASE,
 392                 .end            = UART0_PHYS_BASE + 0xff,
 393                 .flags          = IORESOURCE_MEM,
 394         }, {
 395                 .start          = IRQ_KIRKWOOD_UART_0,
 396                 .end            = IRQ_KIRKWOOD_UART_0,
 397                 .flags          = IORESOURCE_IRQ,
 398         },
 399 };
 400
 401 static struct platform_device kirkwood_uart0 = {
 402         .name                   = "serial8250",
 403         .id                     = 0,
 404         .dev                    = {
 405                 .platform_data  = kirkwood_uart0_data,
 406         },
 407         .resource               = kirkwood_uart0_resources,
 408         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 409 };
 410
 411 void __init kirkwood_uart0_init(void)
 412 {
 413         platform_device_register(&kirkwood_uart0);
 414 }
 415
 416
 417 /*****************************************************************************
 418  * UART1
 419  ****************************************************************************/
 420 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 421         {
 422                 .mapbase        = UART1_PHYS_BASE,
 423                 .membase        = (char *)UART1_VIRT_BASE,
 424                 .irq            = IRQ_KIRKWOOD_UART_1,
 425                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 426                 .iotype         = UPIO_MEM,
 427                 .regshift       = 2,
 428                 .uartclk        = 0,
 429         }, {
 430         },
 431 };
 432
 433 static struct resource kirkwood_uart1_resources[] = {
 434         {
 435                 .start          = UART1_PHYS_BASE,
 436                 .end            = UART1_PHYS_BASE + 0xff,
 437                 .flags          = IORESOURCE_MEM,
 438         }, {
 439                 .start          = IRQ_KIRKWOOD_UART_1,
 440                 .end            = IRQ_KIRKWOOD_UART_1,
 441                 .flags          = IORESOURCE_IRQ,
 442         },
 443 };
 444
 445 static struct platform_device kirkwood_uart1 = {
 446         .name                   = "serial8250",
 447         .id                     = 1,
 448         .dev                    = {
 449                 .platform_data  = kirkwood_uart1_data,
 450         },
 451         .resource               = kirkwood_uart1_resources,
 452         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 453 };
 454
 455 void __init kirkwood_uart1_init(void)
 456 {
 457         platform_device_register(&kirkwood_uart1);
 458 }
 459
 460
 461 /*****************************************************************************
 462  * XOR
 463  ****************************************************************************/
 464 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 465         .dram           = &kirkwood_mbus_dram_info,
 466 };
 467
 468 static u64 kirkwood_xor_dmamask = DMA_32BIT_MASK;
 469
 470
 471 /*****************************************************************************
 472  * XOR0
 473  ****************************************************************************/
 474 static struct resource kirkwood_xor0_shared_resources[] = {
 475         {
 476                 .name   = "xor 0 low",
 477                 .start  = XOR0_PHYS_BASE,
 478                 .end    = XOR0_PHYS_BASE + 0xff,
 479                 .flags  = IORESOURCE_MEM,
 480         }, {
 481                 .name   = "xor 0 high",
 482                 .start  = XOR0_HIGH_PHYS_BASE,
 483                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 484                 .flags  = IORESOURCE_MEM,
 485         },
 486 };
 487
 488 static struct platform_device kirkwood_xor0_shared = {
 489         .name           = MV_XOR_SHARED_NAME,
 490         .id             = 0,
 491         .dev            = {
 492                 .platform_data = &kirkwood_xor_shared_data,
 493         },
 494         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 495         .resource       = kirkwood_xor0_shared_resources,
 496 };
 497
 498 static struct resource kirkwood_xor00_resources[] = {
 499         [0] = {
 500                 .start  = IRQ_KIRKWOOD_XOR_00,
 501                 .end    = IRQ_KIRKWOOD_XOR_00,
 502                 .flags  = IORESOURCE_IRQ,
 503         },
 504 };
 505
 506 static struct mv_xor_platform_data kirkwood_xor00_data = {
 507         .shared         = &kirkwood_xor0_shared,
 508         .hw_id          = 0,
 509         .pool_size      = PAGE_SIZE,
 510 };
 511
 512 static struct platform_device kirkwood_xor00_channel = {
 513         .name           = MV_XOR_NAME,
 514         .id             = 0,
 515         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 516         .resource       = kirkwood_xor00_resources,
 517         .dev            = {
 518                 .dma_mask               = &kirkwood_xor_dmamask,
 519                 .coherent_dma_mask      = DMA_64BIT_MASK,
 520                 .platform_data          = (void *)&kirkwood_xor00_data,
 521         },
 522 };
 523
 524 static struct resource kirkwood_xor01_resources[] = {
 525         [0] = {
 526                 .start  = IRQ_KIRKWOOD_XOR_01,
 527                 .end    = IRQ_KIRKWOOD_XOR_01,
 528                 .flags  = IORESOURCE_IRQ,
 529         },
 530 };
 531
 532 static struct mv_xor_platform_data kirkwood_xor01_data = {
 533         .shared         = &kirkwood_xor0_shared,
 534         .hw_id          = 1,
 535         .pool_size      = PAGE_SIZE,
 536 };
 537
 538 static struct platform_device kirkwood_xor01_channel = {
 539         .name           = MV_XOR_NAME,
 540         .id             = 1,
 541         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 542         .resource       = kirkwood_xor01_resources,
 543         .dev            = {
 544                 .dma_mask               = &kirkwood_xor_dmamask,
 545                 .coherent_dma_mask      = DMA_64BIT_MASK,
 546                 .platform_data          = (void *)&kirkwood_xor01_data,
 547         },
 548 };
 549
 550 void __init kirkwood_xor0_init(void)
 551 {
 552         platform_device_register(&kirkwood_xor0_shared);
 553
 554         /*
 555          * two engines can't do memset simultaneously, this limitation
 556          * satisfied by removing memset support from one of the engines.
 557          */
 558         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 559         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 560         platform_device_register(&kirkwood_xor00_channel);
 561
 562         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 563         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 564         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 565         platform_device_register(&kirkwood_xor01_channel);
 566 }
 567
 568
 569 /*****************************************************************************
 570  * XOR1
 571  ****************************************************************************/
 572 static struct resource kirkwood_xor1_shared_resources[] = {
 573         {
 574                 .name   = "xor 1 low",
 575                 .start  = XOR1_PHYS_BASE,
 576                 .end    = XOR1_PHYS_BASE + 0xff,
 577                 .flags  = IORESOURCE_MEM,
 578         }, {
 579                 .name   = "xor 1 high",
 580                 .start  = XOR1_HIGH_PHYS_BASE,
 581                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 582                 .flags  = IORESOURCE_MEM,
 583         },
 584 };
 585
 586 static struct platform_device kirkwood_xor1_shared = {
 587         .name           = MV_XOR_SHARED_NAME,
 588         .id             = 1,
 589         .dev            = {
 590                 .platform_data = &kirkwood_xor_shared_data,
 591         },
 592         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 593         .resource       = kirkwood_xor1_shared_resources,
 594 };
 595
 596 static struct resource kirkwood_xor10_resources[] = {
 597         [0] = {
 598                 .start  = IRQ_KIRKWOOD_XOR_10,
 599                 .end    = IRQ_KIRKWOOD_XOR_10,
 600                 .flags  = IORESOURCE_IRQ,
 601         },
 602 };
 603
 604 static struct mv_xor_platform_data kirkwood_xor10_data = {
 605         .shared         = &kirkwood_xor1_shared,
 606         .hw_id          = 0,
 607         .pool_size      = PAGE_SIZE,
 608 };
 609
 610 static struct platform_device kirkwood_xor10_channel = {
 611         .name           = MV_XOR_NAME,
 612         .id             = 2,
 613         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 614         .resource       = kirkwood_xor10_resources,
 615         .dev            = {
 616                 .dma_mask               = &kirkwood_xor_dmamask,
 617                 .coherent_dma_mask      = DMA_64BIT_MASK,
 618                 .platform_data          = (void *)&kirkwood_xor10_data,
 619         },
 620 };
 621
 622 static struct resource kirkwood_xor11_resources[] = {
 623         [0] = {
 624                 .start  = IRQ_KIRKWOOD_XOR_11,
 625                 .end    = IRQ_KIRKWOOD_XOR_11,
 626                 .flags  = IORESOURCE_IRQ,
 627         },
 628 };
 629
 630 static struct mv_xor_platform_data kirkwood_xor11_data = {
 631         .shared         = &kirkwood_xor1_shared,
 632         .hw_id          = 1,
 633         .pool_size      = PAGE_SIZE,
 634 };
 635
 636 static struct platform_device kirkwood_xor11_channel = {
 637         .name           = MV_XOR_NAME,
 638         .id             = 3,
 639         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 640         .resource       = kirkwood_xor11_resources,
 641         .dev            = {
 642                 .dma_mask               = &kirkwood_xor_dmamask,
 643                 .coherent_dma_mask      = DMA_64BIT_MASK,
 644                 .platform_data          = (void *)&kirkwood_xor11_data,
 645         },
 646 };
 647
 648 void __init kirkwood_xor1_init(void)
 649 {
 650         platform_device_register(&kirkwood_xor1_shared);
 651
 652         /*
 653          * two engines can't do memset simultaneously, this limitation
 654          * satisfied by removing memset support from one of the engines.
 655          */
 656         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 657         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 658         platform_device_register(&kirkwood_xor10_channel);
 659
 660         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 661         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 662         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 663         platform_device_register(&kirkwood_xor11_channel);
 664 }
 665
 666
 667 /*****************************************************************************
 668  * Time handling
 669  ****************************************************************************/
 670 int kirkwood_tclk;
 671
 672 int __init kirkwood_find_tclk(void)
 673 {
 674         u32 dev, rev;
 675
 676         kirkwood_pcie_id(&dev, &rev);
 677         if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
 678                 return 200000000;
 679
 680         return 166666667;
 681 }
 682
 683 static void kirkwood_timer_init(void)
 684 {
 685         kirkwood_tclk = kirkwood_find_tclk();
 686         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 687 }
 688
 689 struct sys_timer kirkwood_timer = {
 690         .init = kirkwood_timer_init,
 691 };
 692
 693
 694 /*****************************************************************************
 695  * General
 696  ****************************************************************************/
 697 /*
 698  * Identify device ID and revision.
 699  */
 700 static char * __init kirkwood_id(void)
 701 {
 702         u32 dev, rev;
 703
 704         kirkwood_pcie_id(&dev, &rev);
 705
 706         if (dev == MV88F6281_DEV_ID) {
 707                 if (rev == MV88F6281_REV_Z0)
 708                         return "MV88F6281-Z0";
 709                 else if (rev == MV88F6281_REV_A0)
 710                         return "MV88F6281-A0";
 711                 else
 712                         return "MV88F6281-Rev-Unsupported";
 713         } else if (dev == MV88F6192_DEV_ID) {
 714                 if (rev == MV88F6192_REV_Z0)
 715                         return "MV88F6192-Z0";
 716                 else if (rev == MV88F6192_REV_A0)
 717                         return "MV88F6192-A0";
 718                 else
 719                         return "MV88F6192-Rev-Unsupported";
 720         } else if (dev == MV88F6180_DEV_ID) {
 721                 if (rev == MV88F6180_REV_A0)
 722                         return "MV88F6180-Rev-A0";
 723                 else
 724                         return "MV88F6180-Rev-Unsupported";
 725         } else {
 726                 return "Device-Unknown";
 727         }
 728 }
 729
 730 static void __init kirkwood_l2_init(void)
 731 {
 732 #ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
 733         writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
 734         feroceon_l2_init(1);
 735 #else
 736         writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
 737         feroceon_l2_init(0);
 738 #endif
 739 }
 740
 741 void __init kirkwood_init(void)
 742 {
 743         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 744                 kirkwood_id(), kirkwood_tclk);
 745         kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
 746         kirkwood_ge01_shared_data.t_clk = kirkwood_tclk;
 747         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
 748         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
 749         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
 750
 751         kirkwood_setup_cpu_mbus();
 752
 753 #ifdef CONFIG_CACHE_FEROCEON_L2
 754         kirkwood_l2_init();
 755 #endif
 756 }