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