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/mv643xx_i2c.h>
  18 #include <linux/ata_platform.h>
  19 #include <linux/spi/orion_spi.h>
  20 #include <net/dsa.h>
  21 #include <asm/page.h>
  22 #include <asm/timex.h>
  23 #include <asm/mach/map.h>
  24 #include <asm/mach/time.h>
  25 #include <mach/kirkwood.h>
  26 #include <plat/cache-feroceon-l2.h>
  27 #include <plat/ehci-orion.h>
  28 #include <plat/mvsdio.h>
  29 #include <plat/mv_xor.h>
  30 #include <plat/orion_nand.h>
  31 #include <plat/time.h>
  32 #include "common.h"
  33
  34 /*****************************************************************************
  35  * I/O Address Mapping
  36  ****************************************************************************/
  37 static struct map_desc kirkwood_io_desc[] __initdata = {
  38         {
  39                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  40                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  41                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  42                 .type           = MT_DEVICE,
  43         }, {
  44                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  45                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  46                 .length         = KIRKWOOD_REGS_SIZE,
  47                 .type           = MT_DEVICE,
  48         },
  49 };
  50
  51 void __init kirkwood_map_io(void)
  52 {
  53         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  54 }
  55
  56
  57 /*****************************************************************************
  58  * EHCI
  59  ****************************************************************************/
  60 static struct orion_ehci_data kirkwood_ehci_data = {
  61         .dram           = &kirkwood_mbus_dram_info,
  62         .phy_version    = EHCI_PHY_NA,
  63 };
  64
  65 static u64 ehci_dmamask = 0xffffffffUL;
  66
  67
  68 /*****************************************************************************
  69  * EHCI0
  70  ****************************************************************************/
  71 static struct resource kirkwood_ehci_resources[] = {
  72         {
  73                 .start  = USB_PHYS_BASE,
  74                 .end    = USB_PHYS_BASE + 0x0fff,
  75                 .flags  = IORESOURCE_MEM,
  76         }, {
  77                 .start  = IRQ_KIRKWOOD_USB,
  78                 .end    = IRQ_KIRKWOOD_USB,
  79                 .flags  = IORESOURCE_IRQ,
  80         },
  81 };
  82
  83 static struct platform_device kirkwood_ehci = {
  84         .name           = "orion-ehci",
  85         .id             = 0,
  86         .dev            = {
  87                 .dma_mask               = &ehci_dmamask,
  88                 .coherent_dma_mask      = 0xffffffff,
  89                 .platform_data          = &kirkwood_ehci_data,
  90         },
  91         .resource       = kirkwood_ehci_resources,
  92         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
  93 };
  94
  95 void __init kirkwood_ehci_init(void)
  96 {
  97         platform_device_register(&kirkwood_ehci);
  98 }
  99
 100
 101 /*****************************************************************************
 102  * GE00
 103  ****************************************************************************/
 104 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 105         .dram           = &kirkwood_mbus_dram_info,
 106 };
 107
 108 static struct resource kirkwood_ge00_shared_resources[] = {
 109         {
 110                 .name   = "ge00 base",
 111                 .start  = GE00_PHYS_BASE + 0x2000,
 112                 .end    = GE00_PHYS_BASE + 0x3fff,
 113                 .flags  = IORESOURCE_MEM,
 114         }, {
 115                 .name   = "ge00 err irq",
 116                 .start  = IRQ_KIRKWOOD_GE00_ERR,
 117                 .end    = IRQ_KIRKWOOD_GE00_ERR,
 118                 .flags  = IORESOURCE_IRQ,
 119         },
 120 };
 121
 122 static struct platform_device kirkwood_ge00_shared = {
 123         .name           = MV643XX_ETH_SHARED_NAME,
 124         .id             = 0,
 125         .dev            = {
 126                 .platform_data  = &kirkwood_ge00_shared_data,
 127         },
 128         .num_resources  = ARRAY_SIZE(kirkwood_ge00_shared_resources),
 129         .resource       = kirkwood_ge00_shared_resources,
 130 };
 131
 132 static struct resource kirkwood_ge00_resources[] = {
 133         {
 134                 .name   = "ge00 irq",
 135                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 136                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 137                 .flags  = IORESOURCE_IRQ,
 138         },
 139 };
 140
 141 static struct platform_device kirkwood_ge00 = {
 142         .name           = MV643XX_ETH_NAME,
 143         .id             = 0,
 144         .num_resources  = 1,
 145         .resource       = kirkwood_ge00_resources,
 146 };
 147
 148 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 149 {
 150         eth_data->shared = &kirkwood_ge00_shared;
 151         kirkwood_ge00.dev.platform_data = eth_data;
 152
 153         platform_device_register(&kirkwood_ge00_shared);
 154         platform_device_register(&kirkwood_ge00);
 155 }
 156
 157
 158 /*****************************************************************************
 159  * GE01
 160  ****************************************************************************/
 161 struct mv643xx_eth_shared_platform_data kirkwood_ge01_shared_data = {
 162         .dram           = &kirkwood_mbus_dram_info,
 163         .shared_smi     = &kirkwood_ge00_shared,
 164 };
 165
 166 static struct resource kirkwood_ge01_shared_resources[] = {
 167         {
 168                 .name   = "ge01 base",
 169                 .start  = GE01_PHYS_BASE + 0x2000,
 170                 .end    = GE01_PHYS_BASE + 0x3fff,
 171                 .flags  = IORESOURCE_MEM,
 172         }, {
 173                 .name   = "ge01 err irq",
 174                 .start  = IRQ_KIRKWOOD_GE01_ERR,
 175                 .end    = IRQ_KIRKWOOD_GE01_ERR,
 176                 .flags  = IORESOURCE_IRQ,
 177         },
 178 };
 179
 180 static struct platform_device kirkwood_ge01_shared = {
 181         .name           = MV643XX_ETH_SHARED_NAME,
 182         .id             = 1,
 183         .dev            = {
 184                 .platform_data  = &kirkwood_ge01_shared_data,
 185         },
 186         .num_resources  = ARRAY_SIZE(kirkwood_ge01_shared_resources),
 187         .resource       = kirkwood_ge01_shared_resources,
 188 };
 189
 190 static struct resource kirkwood_ge01_resources[] = {
 191         {
 192                 .name   = "ge01 irq",
 193                 .start  = IRQ_KIRKWOOD_GE01_SUM,
 194                 .end    = IRQ_KIRKWOOD_GE01_SUM,
 195                 .flags  = IORESOURCE_IRQ,
 196         },
 197 };
 198
 199 static struct platform_device kirkwood_ge01 = {
 200         .name           = MV643XX_ETH_NAME,
 201         .id             = 1,
 202         .num_resources  = 1,
 203         .resource       = kirkwood_ge01_resources,
 204 };
 205
 206 void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 207 {
 208         eth_data->shared = &kirkwood_ge01_shared;
 209         kirkwood_ge01.dev.platform_data = eth_data;
 210
 211         platform_device_register(&kirkwood_ge01_shared);
 212         platform_device_register(&kirkwood_ge01);
 213 }
 214
 215
 216 /*****************************************************************************
 217  * Ethernet switch
 218  ****************************************************************************/
 219 static struct resource kirkwood_switch_resources[] = {
 220         {
 221                 .start  = 0,
 222                 .end    = 0,
 223                 .flags  = IORESOURCE_IRQ,
 224         },
 225 };
 226
 227 static struct platform_device kirkwood_switch_device = {
 228         .name           = "dsa",
 229         .id             = 0,
 230         .num_resources  = 0,
 231         .resource       = kirkwood_switch_resources,
 232 };
 233
 234 void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
 235 {
 236         int i;
 237
 238         if (irq != NO_IRQ) {
 239                 kirkwood_switch_resources[0].start = irq;
 240                 kirkwood_switch_resources[0].end = irq;
 241                 kirkwood_switch_device.num_resources = 1;
 242         }
 243
 244         d->netdev = &kirkwood_ge00.dev;
 245         for (i = 0; i < d->nr_chips; i++)
 246                 d->chip[i].mii_bus = &kirkwood_ge00_shared.dev;
 247         kirkwood_switch_device.dev.platform_data = d;
 248
 249         platform_device_register(&kirkwood_switch_device);
 250 }
 251
 252
 253 /*****************************************************************************
 254  * SoC RTC
 255  ****************************************************************************/
 256 static struct resource kirkwood_rtc_resource = {
 257         .start  = RTC_PHYS_BASE,
 258         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 259         .flags  = IORESOURCE_MEM,
 260 };
 261
 262 static void __init kirkwood_rtc_init(void)
 263 {
 264         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 265 }
 266
 267
 268 /*****************************************************************************
 269  * SATA
 270  ****************************************************************************/
 271 static struct resource kirkwood_sata_resources[] = {
 272         {
 273                 .name   = "sata base",
 274                 .start  = SATA_PHYS_BASE,
 275                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 276                 .flags  = IORESOURCE_MEM,
 277         }, {
 278                 .name   = "sata irq",
 279                 .start  = IRQ_KIRKWOOD_SATA,
 280                 .end    = IRQ_KIRKWOOD_SATA,
 281                 .flags  = IORESOURCE_IRQ,
 282         },
 283 };
 284
 285 static struct platform_device kirkwood_sata = {
 286         .name           = "sata_mv",
 287         .id             = 0,
 288         .dev            = {
 289                 .coherent_dma_mask      = 0xffffffff,
 290         },
 291         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 292         .resource       = kirkwood_sata_resources,
 293 };
 294
 295 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 296 {
 297         sata_data->dram = &kirkwood_mbus_dram_info;
 298         kirkwood_sata.dev.platform_data = sata_data;
 299         platform_device_register(&kirkwood_sata);
 300 }
 301
 302
 303 /*****************************************************************************
 304  * SD/SDIO/MMC
 305  ****************************************************************************/
 306 static struct resource mvsdio_resources[] = {
 307         [0] = {
 308                 .start  = SDIO_PHYS_BASE,
 309                 .end    = SDIO_PHYS_BASE + SZ_1K - 1,
 310                 .flags  = IORESOURCE_MEM,
 311         },
 312         [1] = {
 313                 .start  = IRQ_KIRKWOOD_SDIO,
 314                 .end    = IRQ_KIRKWOOD_SDIO,
 315                 .flags  = IORESOURCE_IRQ,
 316         },
 317 };
 318
 319 static u64 mvsdio_dmamask = 0xffffffffUL;
 320
 321 static struct platform_device kirkwood_sdio = {
 322         .name           = "mvsdio",
 323         .id             = -1,
 324         .dev            = {
 325                 .dma_mask = &mvsdio_dmamask,
 326                 .coherent_dma_mask = 0xffffffff,
 327         },
 328         .num_resources  = ARRAY_SIZE(mvsdio_resources),
 329         .resource       = mvsdio_resources,
 330 };
 331
 332 void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 333 {
 334         u32 dev, rev;
 335
 336         kirkwood_pcie_id(&dev, &rev);
 337         if (rev == 0)  /* catch all Kirkwood Z0's */
 338                 mvsdio_data->clock = 100000000;
 339         else
 340                 mvsdio_data->clock = 200000000;
 341         mvsdio_data->dram = &kirkwood_mbus_dram_info;
 342         kirkwood_sdio.dev.platform_data = mvsdio_data;
 343         platform_device_register(&kirkwood_sdio);
 344 }
 345
 346
 347 /*****************************************************************************
 348  * SPI
 349  ****************************************************************************/
 350 static struct orion_spi_info kirkwood_spi_plat_data = {
 351 };
 352
 353 static struct resource kirkwood_spi_resources[] = {
 354         {
 355                 .start  = SPI_PHYS_BASE,
 356                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 357                 .flags  = IORESOURCE_MEM,
 358         },
 359 };
 360
 361 static struct platform_device kirkwood_spi = {
 362         .name           = "orion_spi",
 363         .id             = 0,
 364         .resource       = kirkwood_spi_resources,
 365         .dev            = {
 366                 .platform_data  = &kirkwood_spi_plat_data,
 367         },
 368         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 369 };
 370
 371 void __init kirkwood_spi_init()
 372 {
 373         platform_device_register(&kirkwood_spi);
 374 }
 375
 376
 377 /*****************************************************************************
 378  * I2C
 379  ****************************************************************************/
 380 static struct mv64xxx_i2c_pdata kirkwood_i2c_pdata = {
 381         .freq_m         = 8, /* assumes 166 MHz TCLK */
 382         .freq_n         = 3,
 383         .timeout        = 1000, /* Default timeout of 1 second */
 384 };
 385
 386 static struct resource kirkwood_i2c_resources[] = {
 387         {
 388                 .name   = "i2c",
 389                 .start  = I2C_PHYS_BASE,
 390                 .end    = I2C_PHYS_BASE + 0x1f,
 391                 .flags  = IORESOURCE_MEM,
 392         }, {
 393                 .name   = "i2c",
 394                 .start  = IRQ_KIRKWOOD_TWSI,
 395                 .end    = IRQ_KIRKWOOD_TWSI,
 396                 .flags  = IORESOURCE_IRQ,
 397         },
 398 };
 399
 400 static struct platform_device kirkwood_i2c = {
 401         .name           = MV64XXX_I2C_CTLR_NAME,
 402         .id             = 0,
 403         .num_resources  = ARRAY_SIZE(kirkwood_i2c_resources),
 404         .resource       = kirkwood_i2c_resources,
 405         .dev            = {
 406                 .platform_data  = &kirkwood_i2c_pdata,
 407         },
 408 };
 409
 410 void __init kirkwood_i2c_init(void)
 411 {
 412         platform_device_register(&kirkwood_i2c);
 413 }
 414
 415
 416 /*****************************************************************************
 417  * UART0
 418  ****************************************************************************/
 419 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 420         {
 421                 .mapbase        = UART0_PHYS_BASE,
 422                 .membase        = (char *)UART0_VIRT_BASE,
 423                 .irq            = IRQ_KIRKWOOD_UART_0,
 424                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 425                 .iotype         = UPIO_MEM,
 426                 .regshift       = 2,
 427                 .uartclk        = 0,
 428         }, {
 429         },
 430 };
 431
 432 static struct resource kirkwood_uart0_resources[] = {
 433         {
 434                 .start          = UART0_PHYS_BASE,
 435                 .end            = UART0_PHYS_BASE + 0xff,
 436                 .flags          = IORESOURCE_MEM,
 437         }, {
 438                 .start          = IRQ_KIRKWOOD_UART_0,
 439                 .end            = IRQ_KIRKWOOD_UART_0,
 440                 .flags          = IORESOURCE_IRQ,
 441         },
 442 };
 443
 444 static struct platform_device kirkwood_uart0 = {
 445         .name                   = "serial8250",
 446         .id                     = 0,
 447         .dev                    = {
 448                 .platform_data  = kirkwood_uart0_data,
 449         },
 450         .resource               = kirkwood_uart0_resources,
 451         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 452 };
 453
 454 void __init kirkwood_uart0_init(void)
 455 {
 456         platform_device_register(&kirkwood_uart0);
 457 }
 458
 459
 460 /*****************************************************************************
 461  * UART1
 462  ****************************************************************************/
 463 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 464         {
 465                 .mapbase        = UART1_PHYS_BASE,
 466                 .membase        = (char *)UART1_VIRT_BASE,
 467                 .irq            = IRQ_KIRKWOOD_UART_1,
 468                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 469                 .iotype         = UPIO_MEM,
 470                 .regshift       = 2,
 471                 .uartclk        = 0,
 472         }, {
 473         },
 474 };
 475
 476 static struct resource kirkwood_uart1_resources[] = {
 477         {
 478                 .start          = UART1_PHYS_BASE,
 479                 .end            = UART1_PHYS_BASE + 0xff,
 480                 .flags          = IORESOURCE_MEM,
 481         }, {
 482                 .start          = IRQ_KIRKWOOD_UART_1,
 483                 .end            = IRQ_KIRKWOOD_UART_1,
 484                 .flags          = IORESOURCE_IRQ,
 485         },
 486 };
 487
 488 static struct platform_device kirkwood_uart1 = {
 489         .name                   = "serial8250",
 490         .id                     = 1,
 491         .dev                    = {
 492                 .platform_data  = kirkwood_uart1_data,
 493         },
 494         .resource               = kirkwood_uart1_resources,
 495         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 496 };
 497
 498 void __init kirkwood_uart1_init(void)
 499 {
 500         platform_device_register(&kirkwood_uart1);
 501 }
 502
 503
 504 /*****************************************************************************
 505  * XOR
 506  ****************************************************************************/
 507 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 508         .dram           = &kirkwood_mbus_dram_info,
 509 };
 510
 511 static u64 kirkwood_xor_dmamask = DMA_32BIT_MASK;
 512
 513
 514 /*****************************************************************************
 515  * XOR0
 516  ****************************************************************************/
 517 static struct resource kirkwood_xor0_shared_resources[] = {
 518         {
 519                 .name   = "xor 0 low",
 520                 .start  = XOR0_PHYS_BASE,
 521                 .end    = XOR0_PHYS_BASE + 0xff,
 522                 .flags  = IORESOURCE_MEM,
 523         }, {
 524                 .name   = "xor 0 high",
 525                 .start  = XOR0_HIGH_PHYS_BASE,
 526                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 527                 .flags  = IORESOURCE_MEM,
 528         },
 529 };
 530
 531 static struct platform_device kirkwood_xor0_shared = {
 532         .name           = MV_XOR_SHARED_NAME,
 533         .id             = 0,
 534         .dev            = {
 535                 .platform_data = &kirkwood_xor_shared_data,
 536         },
 537         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 538         .resource       = kirkwood_xor0_shared_resources,
 539 };
 540
 541 static struct resource kirkwood_xor00_resources[] = {
 542         [0] = {
 543                 .start  = IRQ_KIRKWOOD_XOR_00,
 544                 .end    = IRQ_KIRKWOOD_XOR_00,
 545                 .flags  = IORESOURCE_IRQ,
 546         },
 547 };
 548
 549 static struct mv_xor_platform_data kirkwood_xor00_data = {
 550         .shared         = &kirkwood_xor0_shared,
 551         .hw_id          = 0,
 552         .pool_size      = PAGE_SIZE,
 553 };
 554
 555 static struct platform_device kirkwood_xor00_channel = {
 556         .name           = MV_XOR_NAME,
 557         .id             = 0,
 558         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 559         .resource       = kirkwood_xor00_resources,
 560         .dev            = {
 561                 .dma_mask               = &kirkwood_xor_dmamask,
 562                 .coherent_dma_mask      = DMA_64BIT_MASK,
 563                 .platform_data          = (void *)&kirkwood_xor00_data,
 564         },
 565 };
 566
 567 static struct resource kirkwood_xor01_resources[] = {
 568         [0] = {
 569                 .start  = IRQ_KIRKWOOD_XOR_01,
 570                 .end    = IRQ_KIRKWOOD_XOR_01,
 571                 .flags  = IORESOURCE_IRQ,
 572         },
 573 };
 574
 575 static struct mv_xor_platform_data kirkwood_xor01_data = {
 576         .shared         = &kirkwood_xor0_shared,
 577         .hw_id          = 1,
 578         .pool_size      = PAGE_SIZE,
 579 };
 580
 581 static struct platform_device kirkwood_xor01_channel = {
 582         .name           = MV_XOR_NAME,
 583         .id             = 1,
 584         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 585         .resource       = kirkwood_xor01_resources,
 586         .dev            = {
 587                 .dma_mask               = &kirkwood_xor_dmamask,
 588                 .coherent_dma_mask      = DMA_64BIT_MASK,
 589                 .platform_data          = (void *)&kirkwood_xor01_data,
 590         },
 591 };
 592
 593 static void __init kirkwood_xor0_init(void)
 594 {
 595         platform_device_register(&kirkwood_xor0_shared);
 596
 597         /*
 598          * two engines can't do memset simultaneously, this limitation
 599          * satisfied by removing memset support from one of the engines.
 600          */
 601         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 602         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 603         platform_device_register(&kirkwood_xor00_channel);
 604
 605         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 606         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 607         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 608         platform_device_register(&kirkwood_xor01_channel);
 609 }
 610
 611
 612 /*****************************************************************************
 613  * XOR1
 614  ****************************************************************************/
 615 static struct resource kirkwood_xor1_shared_resources[] = {
 616         {
 617                 .name   = "xor 1 low",
 618                 .start  = XOR1_PHYS_BASE,
 619                 .end    = XOR1_PHYS_BASE + 0xff,
 620                 .flags  = IORESOURCE_MEM,
 621         }, {
 622                 .name   = "xor 1 high",
 623                 .start  = XOR1_HIGH_PHYS_BASE,
 624                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 625                 .flags  = IORESOURCE_MEM,
 626         },
 627 };
 628
 629 static struct platform_device kirkwood_xor1_shared = {
 630         .name           = MV_XOR_SHARED_NAME,
 631         .id             = 1,
 632         .dev            = {
 633                 .platform_data = &kirkwood_xor_shared_data,
 634         },
 635         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 636         .resource       = kirkwood_xor1_shared_resources,
 637 };
 638
 639 static struct resource kirkwood_xor10_resources[] = {
 640         [0] = {
 641                 .start  = IRQ_KIRKWOOD_XOR_10,
 642                 .end    = IRQ_KIRKWOOD_XOR_10,
 643                 .flags  = IORESOURCE_IRQ,
 644         },
 645 };
 646
 647 static struct mv_xor_platform_data kirkwood_xor10_data = {
 648         .shared         = &kirkwood_xor1_shared,
 649         .hw_id          = 0,
 650         .pool_size      = PAGE_SIZE,
 651 };
 652
 653 static struct platform_device kirkwood_xor10_channel = {
 654         .name           = MV_XOR_NAME,
 655         .id             = 2,
 656         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 657         .resource       = kirkwood_xor10_resources,
 658         .dev            = {
 659                 .dma_mask               = &kirkwood_xor_dmamask,
 660                 .coherent_dma_mask      = DMA_64BIT_MASK,
 661                 .platform_data          = (void *)&kirkwood_xor10_data,
 662         },
 663 };
 664
 665 static struct resource kirkwood_xor11_resources[] = {
 666         [0] = {
 667                 .start  = IRQ_KIRKWOOD_XOR_11,
 668                 .end    = IRQ_KIRKWOOD_XOR_11,
 669                 .flags  = IORESOURCE_IRQ,
 670         },
 671 };
 672
 673 static struct mv_xor_platform_data kirkwood_xor11_data = {
 674         .shared         = &kirkwood_xor1_shared,
 675         .hw_id          = 1,
 676         .pool_size      = PAGE_SIZE,
 677 };
 678
 679 static struct platform_device kirkwood_xor11_channel = {
 680         .name           = MV_XOR_NAME,
 681         .id             = 3,
 682         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 683         .resource       = kirkwood_xor11_resources,
 684         .dev            = {
 685                 .dma_mask               = &kirkwood_xor_dmamask,
 686                 .coherent_dma_mask      = DMA_64BIT_MASK,
 687                 .platform_data          = (void *)&kirkwood_xor11_data,
 688         },
 689 };
 690
 691 static void __init kirkwood_xor1_init(void)
 692 {
 693         platform_device_register(&kirkwood_xor1_shared);
 694
 695         /*
 696          * two engines can't do memset simultaneously, this limitation
 697          * satisfied by removing memset support from one of the engines.
 698          */
 699         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 700         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 701         platform_device_register(&kirkwood_xor10_channel);
 702
 703         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 704         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 705         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 706         platform_device_register(&kirkwood_xor11_channel);
 707 }
 708
 709
 710 /*****************************************************************************
 711  * Time handling
 712  ****************************************************************************/
 713 int kirkwood_tclk;
 714
 715 int __init kirkwood_find_tclk(void)
 716 {
 717         u32 dev, rev;
 718
 719         kirkwood_pcie_id(&dev, &rev);
 720         if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
 721                 return 200000000;
 722
 723         return 166666667;
 724 }
 725
 726 static void kirkwood_timer_init(void)
 727 {
 728         kirkwood_tclk = kirkwood_find_tclk();
 729         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 730 }
 731
 732 struct sys_timer kirkwood_timer = {
 733         .init = kirkwood_timer_init,
 734 };
 735
 736
 737 /*****************************************************************************
 738  * General
 739  ****************************************************************************/
 740 /*
 741  * Identify device ID and revision.
 742  */
 743 static char * __init kirkwood_id(void)
 744 {
 745         u32 dev, rev;
 746
 747         kirkwood_pcie_id(&dev, &rev);
 748
 749         if (dev == MV88F6281_DEV_ID) {
 750                 if (rev == MV88F6281_REV_Z0)
 751                         return "MV88F6281-Z0";
 752                 else if (rev == MV88F6281_REV_A0)
 753                         return "MV88F6281-A0";
 754                 else
 755                         return "MV88F6281-Rev-Unsupported";
 756         } else if (dev == MV88F6192_DEV_ID) {
 757                 if (rev == MV88F6192_REV_Z0)
 758                         return "MV88F6192-Z0";
 759                 else if (rev == MV88F6192_REV_A0)
 760                         return "MV88F6192-A0";
 761                 else
 762                         return "MV88F6192-Rev-Unsupported";
 763         } else if (dev == MV88F6180_DEV_ID) {
 764                 if (rev == MV88F6180_REV_A0)
 765                         return "MV88F6180-Rev-A0";
 766                 else
 767                         return "MV88F6180-Rev-Unsupported";
 768         } else {
 769                 return "Device-Unknown";
 770         }
 771 }
 772
 773 static void __init kirkwood_l2_init(void)
 774 {
 775 #ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
 776         writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
 777         feroceon_l2_init(1);
 778 #else
 779         writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
 780         feroceon_l2_init(0);
 781 #endif
 782 }
 783
 784 void __init kirkwood_init(void)
 785 {
 786         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 787                 kirkwood_id(), kirkwood_tclk);
 788         kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
 789         kirkwood_ge01_shared_data.t_clk = kirkwood_tclk;
 790         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
 791         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
 792         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
 793
 794         kirkwood_setup_cpu_mbus();
 795
 796 #ifdef CONFIG_CACHE_FEROCEON_L2
 797         kirkwood_l2_init();
 798 #endif
 799
 800         /* internal devices that every board has */
 801         kirkwood_rtc_init();
 802         kirkwood_xor0_init();
 803         kirkwood_xor1_init();
 804 }