linux/arch/arm/mach-orion5x/common.c
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   1/*
   2 * arch/arm/mach-orion5x/common.c
   3 *
   4 * Core functions for Marvell Orion 5x SoCs
   5 *
   6 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
   7 *
   8 * This file is licensed under the terms of the GNU General Public
   9 * License version 2.  This program is licensed "as is" without any
  10 * warranty of any kind, whether express or implied.
  11 */
  12
  13#include <linux/kernel.h>
  14#include <linux/init.h>
  15#include <linux/platform_device.h>
  16#include <linux/serial_8250.h>
  17#include <linux/mbus.h>
  18#include <linux/mv643xx_eth.h>
  19#include <linux/mv643xx_i2c.h>
  20#include <linux/ata_platform.h>
  21#include <linux/spi/orion_spi.h>
  22#include <net/dsa.h>
  23#include <asm/page.h>
  24#include <asm/setup.h>
  25#include <asm/timex.h>
  26#include <asm/mach/arch.h>
  27#include <asm/mach/map.h>
  28#include <asm/mach/time.h>
  29#include <mach/hardware.h>
  30#include <mach/orion5x.h>
  31#include <plat/ehci-orion.h>
  32#include <plat/mv_xor.h>
  33#include <plat/orion_nand.h>
  34#include <plat/orion_wdt.h>
  35#include <plat/time.h>
  36#include "common.h"
  37
  38/*****************************************************************************
  39 * I/O Address Mapping
  40 ****************************************************************************/
  41static struct map_desc orion5x_io_desc[] __initdata = {
  42        {
  43                .virtual        = ORION5X_REGS_VIRT_BASE,
  44                .pfn            = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
  45                .length         = ORION5X_REGS_SIZE,
  46                .type           = MT_DEVICE,
  47        }, {
  48                .virtual        = ORION5X_PCIE_IO_VIRT_BASE,
  49                .pfn            = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
  50                .length         = ORION5X_PCIE_IO_SIZE,
  51                .type           = MT_DEVICE,
  52        }, {
  53                .virtual        = ORION5X_PCI_IO_VIRT_BASE,
  54                .pfn            = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
  55                .length         = ORION5X_PCI_IO_SIZE,
  56                .type           = MT_DEVICE,
  57        }, {
  58                .virtual        = ORION5X_PCIE_WA_VIRT_BASE,
  59                .pfn            = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
  60                .length         = ORION5X_PCIE_WA_SIZE,
  61                .type           = MT_DEVICE,
  62        },
  63};
  64
  65void __init orion5x_map_io(void)
  66{
  67        iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
  68}
  69
  70
  71/*****************************************************************************
  72 * EHCI
  73 ****************************************************************************/
  74static struct orion_ehci_data orion5x_ehci_data = {
  75        .dram           = &orion5x_mbus_dram_info,
  76        .phy_version    = EHCI_PHY_ORION,
  77};
  78
  79static u64 ehci_dmamask = 0xffffffffUL;
  80
  81
  82/*****************************************************************************
  83 * EHCI0
  84 ****************************************************************************/
  85static struct resource orion5x_ehci0_resources[] = {
  86        {
  87                .start  = ORION5X_USB0_PHYS_BASE,
  88                .end    = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
  89                .flags  = IORESOURCE_MEM,
  90        }, {
  91                .start  = IRQ_ORION5X_USB0_CTRL,
  92                .end    = IRQ_ORION5X_USB0_CTRL,
  93                .flags  = IORESOURCE_IRQ,
  94        },
  95};
  96
  97static struct platform_device orion5x_ehci0 = {
  98        .name           = "orion-ehci",
  99        .id             = 0,
 100        .dev            = {
 101                .dma_mask               = &ehci_dmamask,
 102                .coherent_dma_mask      = 0xffffffff,
 103                .platform_data          = &orion5x_ehci_data,
 104        },
 105        .resource       = orion5x_ehci0_resources,
 106        .num_resources  = ARRAY_SIZE(orion5x_ehci0_resources),
 107};
 108
 109void __init orion5x_ehci0_init(void)
 110{
 111        platform_device_register(&orion5x_ehci0);
 112}
 113
 114
 115/*****************************************************************************
 116 * EHCI1
 117 ****************************************************************************/
 118static struct resource orion5x_ehci1_resources[] = {
 119        {
 120                .start  = ORION5X_USB1_PHYS_BASE,
 121                .end    = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
 122                .flags  = IORESOURCE_MEM,
 123        }, {
 124                .start  = IRQ_ORION5X_USB1_CTRL,
 125                .end    = IRQ_ORION5X_USB1_CTRL,
 126                .flags  = IORESOURCE_IRQ,
 127        },
 128};
 129
 130static struct platform_device orion5x_ehci1 = {
 131        .name           = "orion-ehci",
 132        .id             = 1,
 133        .dev            = {
 134                .dma_mask               = &ehci_dmamask,
 135                .coherent_dma_mask      = 0xffffffff,
 136                .platform_data          = &orion5x_ehci_data,
 137        },
 138        .resource       = orion5x_ehci1_resources,
 139        .num_resources  = ARRAY_SIZE(orion5x_ehci1_resources),
 140};
 141
 142void __init orion5x_ehci1_init(void)
 143{
 144        platform_device_register(&orion5x_ehci1);
 145}
 146
 147
 148/*****************************************************************************
 149 * GigE
 150 ****************************************************************************/
 151struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
 152        .dram           = &orion5x_mbus_dram_info,
 153};
 154
 155static struct resource orion5x_eth_shared_resources[] = {
 156        {
 157                .start  = ORION5X_ETH_PHYS_BASE + 0x2000,
 158                .end    = ORION5X_ETH_PHYS_BASE + 0x3fff,
 159                .flags  = IORESOURCE_MEM,
 160        }, {
 161                .start  = IRQ_ORION5X_ETH_ERR,
 162                .end    = IRQ_ORION5X_ETH_ERR,
 163                .flags  = IORESOURCE_IRQ,
 164        },
 165};
 166
 167static struct platform_device orion5x_eth_shared = {
 168        .name           = MV643XX_ETH_SHARED_NAME,
 169        .id             = 0,
 170        .dev            = {
 171                .platform_data  = &orion5x_eth_shared_data,
 172        },
 173        .num_resources  = ARRAY_SIZE(orion5x_eth_shared_resources),
 174        .resource       = orion5x_eth_shared_resources,
 175};
 176
 177static struct resource orion5x_eth_resources[] = {
 178        {
 179                .name   = "eth irq",
 180                .start  = IRQ_ORION5X_ETH_SUM,
 181                .end    = IRQ_ORION5X_ETH_SUM,
 182                .flags  = IORESOURCE_IRQ,
 183        },
 184};
 185
 186static struct platform_device orion5x_eth = {
 187        .name           = MV643XX_ETH_NAME,
 188        .id             = 0,
 189        .num_resources  = 1,
 190        .resource       = orion5x_eth_resources,
 191        .dev            = {
 192                .coherent_dma_mask      = 0xffffffff,
 193        },
 194};
 195
 196void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
 197{
 198        eth_data->shared = &orion5x_eth_shared;
 199        orion5x_eth.dev.platform_data = eth_data;
 200
 201        platform_device_register(&orion5x_eth_shared);
 202        platform_device_register(&orion5x_eth);
 203}
 204
 205
 206/*****************************************************************************
 207 * Ethernet switch
 208 ****************************************************************************/
 209static struct resource orion5x_switch_resources[] = {
 210        {
 211                .start  = 0,
 212                .end    = 0,
 213                .flags  = IORESOURCE_IRQ,
 214        },
 215};
 216
 217static struct platform_device orion5x_switch_device = {
 218        .name           = "dsa",
 219        .id             = 0,
 220        .num_resources  = 0,
 221        .resource       = orion5x_switch_resources,
 222};
 223
 224void __init orion5x_eth_switch_init(struct dsa_platform_data *d, int irq)
 225{
 226        int i;
 227
 228        if (irq != NO_IRQ) {
 229                orion5x_switch_resources[0].start = irq;
 230                orion5x_switch_resources[0].end = irq;
 231                orion5x_switch_device.num_resources = 1;
 232        }
 233
 234        d->netdev = &orion5x_eth.dev;
 235        for (i = 0; i < d->nr_chips; i++)
 236                d->chip[i].mii_bus = &orion5x_eth_shared.dev;
 237        orion5x_switch_device.dev.platform_data = d;
 238
 239        platform_device_register(&orion5x_switch_device);
 240}
 241
 242
 243/*****************************************************************************
 244 * I2C
 245 ****************************************************************************/
 246static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
 247        .freq_m         = 8, /* assumes 166 MHz TCLK */
 248        .freq_n         = 3,
 249        .timeout        = 1000, /* Default timeout of 1 second */
 250};
 251
 252static struct resource orion5x_i2c_resources[] = {
 253        {
 254                .start  = I2C_PHYS_BASE,
 255                .end    = I2C_PHYS_BASE + 0x1f,
 256                .flags  = IORESOURCE_MEM,
 257        }, {
 258                .start  = IRQ_ORION5X_I2C,
 259                .end    = IRQ_ORION5X_I2C,
 260                .flags  = IORESOURCE_IRQ,
 261        },
 262};
 263
 264static struct platform_device orion5x_i2c = {
 265        .name           = MV64XXX_I2C_CTLR_NAME,
 266        .id             = 0,
 267        .num_resources  = ARRAY_SIZE(orion5x_i2c_resources),
 268        .resource       = orion5x_i2c_resources,
 269        .dev            = {
 270                .platform_data  = &orion5x_i2c_pdata,
 271        },
 272};
 273
 274void __init orion5x_i2c_init(void)
 275{
 276        platform_device_register(&orion5x_i2c);
 277}
 278
 279
 280/*****************************************************************************
 281 * SATA
 282 ****************************************************************************/
 283static struct resource orion5x_sata_resources[] = {
 284        {
 285                .name   = "sata base",
 286                .start  = ORION5X_SATA_PHYS_BASE,
 287                .end    = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
 288                .flags  = IORESOURCE_MEM,
 289        }, {
 290                .name   = "sata irq",
 291                .start  = IRQ_ORION5X_SATA,
 292                .end    = IRQ_ORION5X_SATA,
 293                .flags  = IORESOURCE_IRQ,
 294        },
 295};
 296
 297static struct platform_device orion5x_sata = {
 298        .name           = "sata_mv",
 299        .id             = 0,
 300        .dev            = {
 301                .coherent_dma_mask      = 0xffffffff,
 302        },
 303        .num_resources  = ARRAY_SIZE(orion5x_sata_resources),
 304        .resource       = orion5x_sata_resources,
 305};
 306
 307void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
 308{
 309        sata_data->dram = &orion5x_mbus_dram_info;
 310        orion5x_sata.dev.platform_data = sata_data;
 311        platform_device_register(&orion5x_sata);
 312}
 313
 314
 315/*****************************************************************************
 316 * SPI
 317 ****************************************************************************/
 318static struct orion_spi_info orion5x_spi_plat_data = {
 319        .tclk                   = 0,
 320        .enable_clock_fix       = 1,
 321};
 322
 323static struct resource orion5x_spi_resources[] = {
 324        {
 325                .name   = "spi base",
 326                .start  = SPI_PHYS_BASE,
 327                .end    = SPI_PHYS_BASE + 0x1f,
 328                .flags  = IORESOURCE_MEM,
 329        },
 330};
 331
 332static struct platform_device orion5x_spi = {
 333        .name           = "orion_spi",
 334        .id             = 0,
 335        .dev            = {
 336                .platform_data  = &orion5x_spi_plat_data,
 337        },
 338        .num_resources  = ARRAY_SIZE(orion5x_spi_resources),
 339        .resource       = orion5x_spi_resources,
 340};
 341
 342void __init orion5x_spi_init()
 343{
 344        platform_device_register(&orion5x_spi);
 345}
 346
 347
 348/*****************************************************************************
 349 * UART0
 350 ****************************************************************************/
 351static struct plat_serial8250_port orion5x_uart0_data[] = {
 352        {
 353                .mapbase        = UART0_PHYS_BASE,
 354                .membase        = (char *)UART0_VIRT_BASE,
 355                .irq            = IRQ_ORION5X_UART0,
 356                .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 357                .iotype         = UPIO_MEM,
 358                .regshift       = 2,
 359                .uartclk        = 0,
 360        }, {
 361        },
 362};
 363
 364static struct resource orion5x_uart0_resources[] = {
 365        {
 366                .start          = UART0_PHYS_BASE,
 367                .end            = UART0_PHYS_BASE + 0xff,
 368                .flags          = IORESOURCE_MEM,
 369        }, {
 370                .start          = IRQ_ORION5X_UART0,
 371                .end            = IRQ_ORION5X_UART0,
 372                .flags          = IORESOURCE_IRQ,
 373        },
 374};
 375
 376static struct platform_device orion5x_uart0 = {
 377        .name                   = "serial8250",
 378        .id                     = PLAT8250_DEV_PLATFORM,
 379        .dev                    = {
 380                .platform_data  = orion5x_uart0_data,
 381        },
 382        .resource               = orion5x_uart0_resources,
 383        .num_resources          = ARRAY_SIZE(orion5x_uart0_resources),
 384};
 385
 386void __init orion5x_uart0_init(void)
 387{
 388        platform_device_register(&orion5x_uart0);
 389}
 390
 391
 392/*****************************************************************************
 393 * UART1
 394 ****************************************************************************/
 395static struct plat_serial8250_port orion5x_uart1_data[] = {
 396        {
 397                .mapbase        = UART1_PHYS_BASE,
 398                .membase        = (char *)UART1_VIRT_BASE,
 399                .irq            = IRQ_ORION5X_UART1,
 400                .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 401                .iotype         = UPIO_MEM,
 402                .regshift       = 2,
 403                .uartclk        = 0,
 404        }, {
 405        },
 406};
 407
 408static struct resource orion5x_uart1_resources[] = {
 409        {
 410                .start          = UART1_PHYS_BASE,
 411                .end            = UART1_PHYS_BASE + 0xff,
 412                .flags          = IORESOURCE_MEM,
 413        }, {
 414                .start          = IRQ_ORION5X_UART1,
 415                .end            = IRQ_ORION5X_UART1,
 416                .flags          = IORESOURCE_IRQ,
 417        },
 418};
 419
 420static struct platform_device orion5x_uart1 = {
 421        .name                   = "serial8250",
 422        .id                     = PLAT8250_DEV_PLATFORM1,
 423        .dev                    = {
 424                .platform_data  = orion5x_uart1_data,
 425        },
 426        .resource               = orion5x_uart1_resources,
 427        .num_resources          = ARRAY_SIZE(orion5x_uart1_resources),
 428};
 429
 430void __init orion5x_uart1_init(void)
 431{
 432        platform_device_register(&orion5x_uart1);
 433}
 434
 435
 436/*****************************************************************************
 437 * XOR engine
 438 ****************************************************************************/
 439struct mv_xor_platform_shared_data orion5x_xor_shared_data = {
 440        .dram           = &orion5x_mbus_dram_info,
 441};
 442
 443static struct resource orion5x_xor_shared_resources[] = {
 444        {
 445                .name   = "xor low",
 446                .start  = ORION5X_XOR_PHYS_BASE,
 447                .end    = ORION5X_XOR_PHYS_BASE + 0xff,
 448                .flags  = IORESOURCE_MEM,
 449        }, {
 450                .name   = "xor high",
 451                .start  = ORION5X_XOR_PHYS_BASE + 0x200,
 452                .end    = ORION5X_XOR_PHYS_BASE + 0x2ff,
 453                .flags  = IORESOURCE_MEM,
 454        },
 455};
 456
 457static struct platform_device orion5x_xor_shared = {
 458        .name           = MV_XOR_SHARED_NAME,
 459        .id             = 0,
 460        .dev            = {
 461                .platform_data  = &orion5x_xor_shared_data,
 462        },
 463        .num_resources  = ARRAY_SIZE(orion5x_xor_shared_resources),
 464        .resource       = orion5x_xor_shared_resources,
 465};
 466
 467static u64 orion5x_xor_dmamask = DMA_BIT_MASK(32);
 468
 469static struct resource orion5x_xor0_resources[] = {
 470        [0] = {
 471                .start  = IRQ_ORION5X_XOR0,
 472                .end    = IRQ_ORION5X_XOR0,
 473                .flags  = IORESOURCE_IRQ,
 474        },
 475};
 476
 477static struct mv_xor_platform_data orion5x_xor0_data = {
 478        .shared         = &orion5x_xor_shared,
 479        .hw_id          = 0,
 480        .pool_size      = PAGE_SIZE,
 481};
 482
 483static struct platform_device orion5x_xor0_channel = {
 484        .name           = MV_XOR_NAME,
 485        .id             = 0,
 486        .num_resources  = ARRAY_SIZE(orion5x_xor0_resources),
 487        .resource       = orion5x_xor0_resources,
 488        .dev            = {
 489                .dma_mask               = &orion5x_xor_dmamask,
 490                .coherent_dma_mask      = DMA_BIT_MASK(64),
 491                .platform_data          = &orion5x_xor0_data,
 492        },
 493};
 494
 495static struct resource orion5x_xor1_resources[] = {
 496        [0] = {
 497                .start  = IRQ_ORION5X_XOR1,
 498                .end    = IRQ_ORION5X_XOR1,
 499                .flags  = IORESOURCE_IRQ,
 500        },
 501};
 502
 503static struct mv_xor_platform_data orion5x_xor1_data = {
 504        .shared         = &orion5x_xor_shared,
 505        .hw_id          = 1,
 506        .pool_size      = PAGE_SIZE,
 507};
 508
 509static struct platform_device orion5x_xor1_channel = {
 510        .name           = MV_XOR_NAME,
 511        .id             = 1,
 512        .num_resources  = ARRAY_SIZE(orion5x_xor1_resources),
 513        .resource       = orion5x_xor1_resources,
 514        .dev            = {
 515                .dma_mask               = &orion5x_xor_dmamask,
 516                .coherent_dma_mask      = DMA_BIT_MASK(64),
 517                .platform_data          = &orion5x_xor1_data,
 518        },
 519};
 520
 521void __init orion5x_xor_init(void)
 522{
 523        platform_device_register(&orion5x_xor_shared);
 524
 525        /*
 526         * two engines can't do memset simultaneously, this limitation
 527         * satisfied by removing memset support from one of the engines.
 528         */
 529        dma_cap_set(DMA_MEMCPY, orion5x_xor0_data.cap_mask);
 530        dma_cap_set(DMA_XOR, orion5x_xor0_data.cap_mask);
 531        platform_device_register(&orion5x_xor0_channel);
 532
 533        dma_cap_set(DMA_MEMCPY, orion5x_xor1_data.cap_mask);
 534        dma_cap_set(DMA_MEMSET, orion5x_xor1_data.cap_mask);
 535        dma_cap_set(DMA_XOR, orion5x_xor1_data.cap_mask);
 536        platform_device_register(&orion5x_xor1_channel);
 537}
 538
 539static struct resource orion5x_crypto_res[] = {
 540        {
 541                .name   = "regs",
 542                .start  = ORION5X_CRYPTO_PHYS_BASE,
 543                .end    = ORION5X_CRYPTO_PHYS_BASE + 0xffff,
 544                .flags  = IORESOURCE_MEM,
 545        }, {
 546                .name   = "sram",
 547                .start  = ORION5X_SRAM_PHYS_BASE,
 548                .end    = ORION5X_SRAM_PHYS_BASE + SZ_8K - 1,
 549                .flags  = IORESOURCE_MEM,
 550        }, {
 551                .name   = "crypto interrupt",
 552                .start  = IRQ_ORION5X_CESA,
 553                .end    = IRQ_ORION5X_CESA,
 554                .flags  = IORESOURCE_IRQ,
 555        },
 556};
 557
 558static struct platform_device orion5x_crypto_device = {
 559        .name           = "mv_crypto",
 560        .id             = -1,
 561        .num_resources  = ARRAY_SIZE(orion5x_crypto_res),
 562        .resource       = orion5x_crypto_res,
 563};
 564
 565static int __init orion5x_crypto_init(void)
 566{
 567        int ret;
 568
 569        ret = orion5x_setup_sram_win();
 570        if (ret)
 571                return ret;
 572
 573        return platform_device_register(&orion5x_crypto_device);
 574}
 575
 576/*****************************************************************************
 577 * Watchdog
 578 ****************************************************************************/
 579static struct orion_wdt_platform_data orion5x_wdt_data = {
 580        .tclk                   = 0,
 581};
 582
 583static struct platform_device orion5x_wdt_device = {
 584        .name           = "orion_wdt",
 585        .id             = -1,
 586        .dev            = {
 587                .platform_data  = &orion5x_wdt_data,
 588        },
 589        .num_resources  = 0,
 590};
 591
 592void __init orion5x_wdt_init(void)
 593{
 594        orion5x_wdt_data.tclk = orion5x_tclk;
 595        platform_device_register(&orion5x_wdt_device);
 596}
 597
 598
 599/*****************************************************************************
 600 * Time handling
 601 ****************************************************************************/
 602int orion5x_tclk;
 603
 604int __init orion5x_find_tclk(void)
 605{
 606        u32 dev, rev;
 607
 608        orion5x_pcie_id(&dev, &rev);
 609        if (dev == MV88F6183_DEV_ID &&
 610            (readl(MPP_RESET_SAMPLE) & 0x00000200) == 0)
 611                return 133333333;
 612
 613        return 166666667;
 614}
 615
 616static void orion5x_timer_init(void)
 617{
 618        orion5x_tclk = orion5x_find_tclk();
 619        orion_time_init(IRQ_ORION5X_BRIDGE, orion5x_tclk);
 620}
 621
 622struct sys_timer orion5x_timer = {
 623        .init = orion5x_timer_init,
 624};
 625
 626
 627/*****************************************************************************
 628 * General
 629 ****************************************************************************/
 630/*
 631 * Identify device ID and rev from PCIe configuration header space '0'.
 632 */
 633static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
 634{
 635        orion5x_pcie_id(dev, rev);
 636
 637        if (*dev == MV88F5281_DEV_ID) {
 638                if (*rev == MV88F5281_REV_D2) {
 639                        *dev_name = "MV88F5281-D2";
 640                } else if (*rev == MV88F5281_REV_D1) {
 641                        *dev_name = "MV88F5281-D1";
 642                } else if (*rev == MV88F5281_REV_D0) {
 643                        *dev_name = "MV88F5281-D0";
 644                } else {
 645                        *dev_name = "MV88F5281-Rev-Unsupported";
 646                }
 647        } else if (*dev == MV88F5182_DEV_ID) {
 648                if (*rev == MV88F5182_REV_A2) {
 649                        *dev_name = "MV88F5182-A2";
 650                } else {
 651                        *dev_name = "MV88F5182-Rev-Unsupported";
 652                }
 653        } else if (*dev == MV88F5181_DEV_ID) {
 654                if (*rev == MV88F5181_REV_B1) {
 655                        *dev_name = "MV88F5181-Rev-B1";
 656                } else if (*rev == MV88F5181L_REV_A1) {
 657                        *dev_name = "MV88F5181L-Rev-A1";
 658                } else {
 659                        *dev_name = "MV88F5181(L)-Rev-Unsupported";
 660                }
 661        } else if (*dev == MV88F6183_DEV_ID) {
 662                if (*rev == MV88F6183_REV_B0) {
 663                        *dev_name = "MV88F6183-Rev-B0";
 664                } else {
 665                        *dev_name = "MV88F6183-Rev-Unsupported";
 666                }
 667        } else {
 668                *dev_name = "Device-Unknown";
 669        }
 670}
 671
 672void __init orion5x_init(void)
 673{
 674        char *dev_name;
 675        u32 dev, rev;
 676
 677        orion5x_id(&dev, &rev, &dev_name);
 678        printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
 679
 680        orion5x_eth_shared_data.t_clk = orion5x_tclk;
 681        orion5x_spi_plat_data.tclk = orion5x_tclk;
 682        orion5x_uart0_data[0].uartclk = orion5x_tclk;
 683        orion5x_uart1_data[0].uartclk = orion5x_tclk;
 684
 685        /*
 686         * Setup Orion address map
 687         */
 688        orion5x_setup_cpu_mbus_bridge();
 689
 690        /*
 691         * Don't issue "Wait for Interrupt" instruction if we are
 692         * running on D0 5281 silicon.
 693         */
 694        if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
 695                printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
 696                disable_hlt();
 697        }
 698
 699        /*
 700         * The 5082/5181l/5182/6082/6082l/6183 have crypto
 701         * while 5180n/5181/5281 don't have crypto.
 702         */
 703        if ((dev == MV88F5181_DEV_ID && rev >= MV88F5181L_REV_A0) ||
 704            dev == MV88F5182_DEV_ID || dev == MV88F6183_DEV_ID)
 705                orion5x_crypto_init();
 706
 707        /*
 708         * Register watchdog driver
 709         */
 710        orion5x_wdt_init();
 711}
 712
 713/*
 714 * Many orion-based systems have buggy bootloader implementations.
 715 * This is a common fixup for bogus memory tags.
 716 */
 717void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
 718                            char **from, struct meminfo *meminfo)
 719{
 720        for (; t->hdr.size; t = tag_next(t))
 721                if (t->hdr.tag == ATAG_MEM &&
 722                    (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
 723                     t->u.mem.start & ~PAGE_MASK)) {
 724                        printk(KERN_WARNING
 725                               "Clearing invalid memory bank %dKB@0x%08x\n",
 726                               t->u.mem.size / 1024, t->u.mem.start);
 727                        t->hdr.tag = 0;
 728                }
 729}
 730