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/mtd/nand.h>
  20 #include <linux/spi/orion_spi.h>
  21 #include <net/dsa.h>
  22 #include <asm/page.h>
  23 #include <asm/timex.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/mach/time.h>
  26 #include <mach/kirkwood.h>
  27 #include <mach/bridge-regs.h>
  28 #include <plat/cache-feroceon-l2.h>
  29 #include <plat/ehci-orion.h>
  30 #include <plat/mvsdio.h>
  31 #include <plat/mv_xor.h>
  32 #include <plat/orion_nand.h>
  33 #include <plat/orion_wdt.h>
  34 #include <plat/time.h>
  35 #include "common.h"
  36
  37 /*****************************************************************************
  38  * I/O Address Mapping
  39  ****************************************************************************/
  40 static struct map_desc kirkwood_io_desc[] __initdata = {
  41         {
  42                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  43                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  44                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  45                 .type           = MT_DEVICE,
  46         }, {
  47                 .virtual        = KIRKWOOD_PCIE1_IO_VIRT_BASE,
  48                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE),
  49                 .length         = KIRKWOOD_PCIE1_IO_SIZE,
  50                 .type           = MT_DEVICE,
  51         }, {
  52                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  53                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  54                 .length         = KIRKWOOD_REGS_SIZE,
  55                 .type           = MT_DEVICE,
  56         },
  57 };
  58
  59 void __init kirkwood_map_io(void)
  60 {
  61         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  62 }
  63
  64 /*
  65  * Default clock control bits.  Any bit _not_ set in this variable
  66  * will be cleared from the hardware after platform devices have been
  67  * registered.  Some reserved bits must be set to 1.
  68  */
  69 unsigned int kirkwood_clk_ctrl = CGC_DUNIT | CGC_RESERVED;
  70
  71
  72 /*****************************************************************************
  73  * EHCI
  74  ****************************************************************************/
  75 static struct orion_ehci_data kirkwood_ehci_data = {
  76         .dram           = &kirkwood_mbus_dram_info,
  77         .phy_version    = EHCI_PHY_NA,
  78 };
  79
  80 static u64 ehci_dmamask = 0xffffffffUL;
  81
  82
  83 /*****************************************************************************
  84  * EHCI0
  85  ****************************************************************************/
  86 static struct resource kirkwood_ehci_resources[] = {
  87         {
  88                 .start  = USB_PHYS_BASE,
  89                 .end    = USB_PHYS_BASE + 0x0fff,
  90                 .flags  = IORESOURCE_MEM,
  91         }, {
  92                 .start  = IRQ_KIRKWOOD_USB,
  93                 .end    = IRQ_KIRKWOOD_USB,
  94                 .flags  = IORESOURCE_IRQ,
  95         },
  96 };
  97
  98 static struct platform_device kirkwood_ehci = {
  99         .name           = "orion-ehci",
 100         .id             = 0,
 101         .dev            = {
 102                 .dma_mask               = &ehci_dmamask,
 103                 .coherent_dma_mask      = 0xffffffff,
 104                 .platform_data          = &kirkwood_ehci_data,
 105         },
 106         .resource       = kirkwood_ehci_resources,
 107         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
 108 };
 109
 110 void __init kirkwood_ehci_init(void)
 111 {
 112         kirkwood_clk_ctrl |= CGC_USB0;
 113         platform_device_register(&kirkwood_ehci);
 114 }
 115
 116
 117 /*****************************************************************************
 118  * GE00
 119  ****************************************************************************/
 120 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 121         .dram           = &kirkwood_mbus_dram_info,
 122 };
 123
 124 static struct resource kirkwood_ge00_shared_resources[] = {
 125         {
 126                 .name   = "ge00 base",
 127                 .start  = GE00_PHYS_BASE + 0x2000,
 128                 .end    = GE00_PHYS_BASE + 0x3fff,
 129                 .flags  = IORESOURCE_MEM,
 130         }, {
 131                 .name   = "ge00 err irq",
 132                 .start  = IRQ_KIRKWOOD_GE00_ERR,
 133                 .end    = IRQ_KIRKWOOD_GE00_ERR,
 134                 .flags  = IORESOURCE_IRQ,
 135         },
 136 };
 137
 138 static struct platform_device kirkwood_ge00_shared = {
 139         .name           = MV643XX_ETH_SHARED_NAME,
 140         .id             = 0,
 141         .dev            = {
 142                 .platform_data  = &kirkwood_ge00_shared_data,
 143         },
 144         .num_resources  = ARRAY_SIZE(kirkwood_ge00_shared_resources),
 145         .resource       = kirkwood_ge00_shared_resources,
 146 };
 147
 148 static struct resource kirkwood_ge00_resources[] = {
 149         {
 150                 .name   = "ge00 irq",
 151                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 152                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 153                 .flags  = IORESOURCE_IRQ,
 154         },
 155 };
 156
 157 static struct platform_device kirkwood_ge00 = {
 158         .name           = MV643XX_ETH_NAME,
 159         .id             = 0,
 160         .num_resources  = 1,
 161         .resource       = kirkwood_ge00_resources,
 162         .dev            = {
 163                 .coherent_dma_mask      = 0xffffffff,
 164         },
 165 };
 166
 167 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 168 {
 169         kirkwood_clk_ctrl |= CGC_GE0;
 170         eth_data->shared = &kirkwood_ge00_shared;
 171         kirkwood_ge00.dev.platform_data = eth_data;
 172
 173         platform_device_register(&kirkwood_ge00_shared);
 174         platform_device_register(&kirkwood_ge00);
 175 }
 176
 177
 178 /*****************************************************************************
 179  * GE01
 180  ****************************************************************************/
 181 struct mv643xx_eth_shared_platform_data kirkwood_ge01_shared_data = {
 182         .dram           = &kirkwood_mbus_dram_info,
 183         .shared_smi     = &kirkwood_ge00_shared,
 184 };
 185
 186 static struct resource kirkwood_ge01_shared_resources[] = {
 187         {
 188                 .name   = "ge01 base",
 189                 .start  = GE01_PHYS_BASE + 0x2000,
 190                 .end    = GE01_PHYS_BASE + 0x3fff,
 191                 .flags  = IORESOURCE_MEM,
 192         }, {
 193                 .name   = "ge01 err irq",
 194                 .start  = IRQ_KIRKWOOD_GE01_ERR,
 195                 .end    = IRQ_KIRKWOOD_GE01_ERR,
 196                 .flags  = IORESOURCE_IRQ,
 197         },
 198 };
 199
 200 static struct platform_device kirkwood_ge01_shared = {
 201         .name           = MV643XX_ETH_SHARED_NAME,
 202         .id             = 1,
 203         .dev            = {
 204                 .platform_data  = &kirkwood_ge01_shared_data,
 205         },
 206         .num_resources  = ARRAY_SIZE(kirkwood_ge01_shared_resources),
 207         .resource       = kirkwood_ge01_shared_resources,
 208 };
 209
 210 static struct resource kirkwood_ge01_resources[] = {
 211         {
 212                 .name   = "ge01 irq",
 213                 .start  = IRQ_KIRKWOOD_GE01_SUM,
 214                 .end    = IRQ_KIRKWOOD_GE01_SUM,
 215                 .flags  = IORESOURCE_IRQ,
 216         },
 217 };
 218
 219 static struct platform_device kirkwood_ge01 = {
 220         .name           = MV643XX_ETH_NAME,
 221         .id             = 1,
 222         .num_resources  = 1,
 223         .resource       = kirkwood_ge01_resources,
 224         .dev            = {
 225                 .coherent_dma_mask      = 0xffffffff,
 226         },
 227 };
 228
 229 void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 230 {
 231         kirkwood_clk_ctrl |= CGC_GE1;
 232         eth_data->shared = &kirkwood_ge01_shared;
 233         kirkwood_ge01.dev.platform_data = eth_data;
 234
 235         platform_device_register(&kirkwood_ge01_shared);
 236         platform_device_register(&kirkwood_ge01);
 237 }
 238
 239
 240 /*****************************************************************************
 241  * Ethernet switch
 242  ****************************************************************************/
 243 static struct resource kirkwood_switch_resources[] = {
 244         {
 245                 .start  = 0,
 246                 .end    = 0,
 247                 .flags  = IORESOURCE_IRQ,
 248         },
 249 };
 250
 251 static struct platform_device kirkwood_switch_device = {
 252         .name           = "dsa",
 253         .id             = 0,
 254         .num_resources  = 0,
 255         .resource       = kirkwood_switch_resources,
 256 };
 257
 258 void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
 259 {
 260         int i;
 261
 262         if (irq != NO_IRQ) {
 263                 kirkwood_switch_resources[0].start = irq;
 264                 kirkwood_switch_resources[0].end = irq;
 265                 kirkwood_switch_device.num_resources = 1;
 266         }
 267
 268         d->netdev = &kirkwood_ge00.dev;
 269         for (i = 0; i < d->nr_chips; i++)
 270                 d->chip[i].mii_bus = &kirkwood_ge00_shared.dev;
 271         kirkwood_switch_device.dev.platform_data = d;
 272
 273         platform_device_register(&kirkwood_switch_device);
 274 }
 275
 276
 277 /*****************************************************************************
 278  * NAND flash
 279  ****************************************************************************/
 280 static struct resource kirkwood_nand_resource = {
 281         .flags          = IORESOURCE_MEM,
 282         .start          = KIRKWOOD_NAND_MEM_PHYS_BASE,
 283         .end            = KIRKWOOD_NAND_MEM_PHYS_BASE +
 284                                 KIRKWOOD_NAND_MEM_SIZE - 1,
 285 };
 286
 287 static struct orion_nand_data kirkwood_nand_data = {
 288         .cle            = 0,
 289         .ale            = 1,
 290         .width          = 8,
 291 };
 292
 293 static struct platform_device kirkwood_nand_flash = {
 294         .name           = "orion_nand",
 295         .id             = -1,
 296         .dev            = {
 297                 .platform_data  = &kirkwood_nand_data,
 298         },
 299         .resource       = &kirkwood_nand_resource,
 300         .num_resources  = 1,
 301 };
 302
 303 void __init kirkwood_nand_init(struct mtd_partition *parts, int nr_parts,
 304                                int chip_delay)
 305 {
 306         kirkwood_clk_ctrl |= CGC_RUNIT;
 307         kirkwood_nand_data.parts = parts;
 308         kirkwood_nand_data.nr_parts = nr_parts;
 309         kirkwood_nand_data.chip_delay = chip_delay;
 310         platform_device_register(&kirkwood_nand_flash);
 311 }
 312
 313 void __init kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts,
 314                                    int (*dev_ready)(struct mtd_info *))
 315 {
 316         kirkwood_clk_ctrl |= CGC_RUNIT;
 317         kirkwood_nand_data.parts = parts;
 318         kirkwood_nand_data.nr_parts = nr_parts;
 319         kirkwood_nand_data.dev_ready = dev_ready;
 320         platform_device_register(&kirkwood_nand_flash);
 321 }
 322
 323 /*****************************************************************************
 324  * SoC RTC
 325  ****************************************************************************/
 326 static struct resource kirkwood_rtc_resource = {
 327         .start  = RTC_PHYS_BASE,
 328         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 329         .flags  = IORESOURCE_MEM,
 330 };
 331
 332 static void __init kirkwood_rtc_init(void)
 333 {
 334         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 335 }
 336
 337
 338 /*****************************************************************************
 339  * SATA
 340  ****************************************************************************/
 341 static struct resource kirkwood_sata_resources[] = {
 342         {
 343                 .name   = "sata base",
 344                 .start  = SATA_PHYS_BASE,
 345                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 346                 .flags  = IORESOURCE_MEM,
 347         }, {
 348                 .name   = "sata irq",
 349                 .start  = IRQ_KIRKWOOD_SATA,
 350                 .end    = IRQ_KIRKWOOD_SATA,
 351                 .flags  = IORESOURCE_IRQ,
 352         },
 353 };
 354
 355 static struct platform_device kirkwood_sata = {
 356         .name           = "sata_mv",
 357         .id             = 0,
 358         .dev            = {
 359                 .coherent_dma_mask      = 0xffffffff,
 360         },
 361         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 362         .resource       = kirkwood_sata_resources,
 363 };
 364
 365 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 366 {
 367         kirkwood_clk_ctrl |= CGC_SATA0;
 368         if (sata_data->n_ports > 1)
 369                 kirkwood_clk_ctrl |= CGC_SATA1;
 370         sata_data->dram = &kirkwood_mbus_dram_info;
 371         kirkwood_sata.dev.platform_data = sata_data;
 372         platform_device_register(&kirkwood_sata);
 373 }
 374
 375
 376 /*****************************************************************************
 377  * SD/SDIO/MMC
 378  ****************************************************************************/
 379 static struct resource mvsdio_resources[] = {
 380         [0] = {
 381                 .start  = SDIO_PHYS_BASE,
 382                 .end    = SDIO_PHYS_BASE + SZ_1K - 1,
 383                 .flags  = IORESOURCE_MEM,
 384         },
 385         [1] = {
 386                 .start  = IRQ_KIRKWOOD_SDIO,
 387                 .end    = IRQ_KIRKWOOD_SDIO,
 388                 .flags  = IORESOURCE_IRQ,
 389         },
 390 };
 391
 392 static u64 mvsdio_dmamask = 0xffffffffUL;
 393
 394 static struct platform_device kirkwood_sdio = {
 395         .name           = "mvsdio",
 396         .id             = -1,
 397         .dev            = {
 398                 .dma_mask = &mvsdio_dmamask,
 399                 .coherent_dma_mask = 0xffffffff,
 400         },
 401         .num_resources  = ARRAY_SIZE(mvsdio_resources),
 402         .resource       = mvsdio_resources,
 403 };
 404
 405 void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 406 {
 407         u32 dev, rev;
 408
 409         kirkwood_pcie_id(&dev, &rev);
 410         if (rev == 0 && dev != MV88F6282_DEV_ID) /* catch all Kirkwood Z0's */
 411                 mvsdio_data->clock = 100000000;
 412         else
 413                 mvsdio_data->clock = 200000000;
 414         mvsdio_data->dram = &kirkwood_mbus_dram_info;
 415         kirkwood_clk_ctrl |= CGC_SDIO;
 416         kirkwood_sdio.dev.platform_data = mvsdio_data;
 417         platform_device_register(&kirkwood_sdio);
 418 }
 419
 420
 421 /*****************************************************************************
 422  * SPI
 423  ****************************************************************************/
 424 static struct orion_spi_info kirkwood_spi_plat_data = {
 425 };
 426
 427 static struct resource kirkwood_spi_resources[] = {
 428         {
 429                 .start  = SPI_PHYS_BASE,
 430                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 431                 .flags  = IORESOURCE_MEM,
 432         },
 433 };
 434
 435 static struct platform_device kirkwood_spi = {
 436         .name           = "orion_spi",
 437         .id             = 0,
 438         .resource       = kirkwood_spi_resources,
 439         .dev            = {
 440                 .platform_data  = &kirkwood_spi_plat_data,
 441         },
 442         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 443 };
 444
 445 void __init kirkwood_spi_init()
 446 {
 447         kirkwood_clk_ctrl |= CGC_RUNIT;
 448         platform_device_register(&kirkwood_spi);
 449 }
 450
 451
 452 /*****************************************************************************
 453  * I2C
 454  ****************************************************************************/
 455 static struct mv64xxx_i2c_pdata kirkwood_i2c_pdata = {
 456         .freq_m         = 8, /* assumes 166 MHz TCLK */
 457         .freq_n         = 3,
 458         .timeout        = 1000, /* Default timeout of 1 second */
 459 };
 460
 461 static struct resource kirkwood_i2c_resources[] = {
 462         {
 463                 .start  = I2C_PHYS_BASE,
 464                 .end    = I2C_PHYS_BASE + 0x1f,
 465                 .flags  = IORESOURCE_MEM,
 466         }, {
 467                 .start  = IRQ_KIRKWOOD_TWSI,
 468                 .end    = IRQ_KIRKWOOD_TWSI,
 469                 .flags  = IORESOURCE_IRQ,
 470         },
 471 };
 472
 473 static struct platform_device kirkwood_i2c = {
 474         .name           = MV64XXX_I2C_CTLR_NAME,
 475         .id             = 0,
 476         .num_resources  = ARRAY_SIZE(kirkwood_i2c_resources),
 477         .resource       = kirkwood_i2c_resources,
 478         .dev            = {
 479                 .platform_data  = &kirkwood_i2c_pdata,
 480         },
 481 };
 482
 483 void __init kirkwood_i2c_init(void)
 484 {
 485         platform_device_register(&kirkwood_i2c);
 486 }
 487
 488
 489 /*****************************************************************************
 490  * UART0
 491  ****************************************************************************/
 492 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 493         {
 494                 .mapbase        = UART0_PHYS_BASE,
 495                 .membase        = (char *)UART0_VIRT_BASE,
 496                 .irq            = IRQ_KIRKWOOD_UART_0,
 497                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 498                 .iotype         = UPIO_MEM,
 499                 .regshift       = 2,
 500                 .uartclk        = 0,
 501         }, {
 502         },
 503 };
 504
 505 static struct resource kirkwood_uart0_resources[] = {
 506         {
 507                 .start          = UART0_PHYS_BASE,
 508                 .end            = UART0_PHYS_BASE + 0xff,
 509                 .flags          = IORESOURCE_MEM,
 510         }, {
 511                 .start          = IRQ_KIRKWOOD_UART_0,
 512                 .end            = IRQ_KIRKWOOD_UART_0,
 513                 .flags          = IORESOURCE_IRQ,
 514         },
 515 };
 516
 517 static struct platform_device kirkwood_uart0 = {
 518         .name                   = "serial8250",
 519         .id                     = 0,
 520         .dev                    = {
 521                 .platform_data  = kirkwood_uart0_data,
 522         },
 523         .resource               = kirkwood_uart0_resources,
 524         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 525 };
 526
 527 void __init kirkwood_uart0_init(void)
 528 {
 529         platform_device_register(&kirkwood_uart0);
 530 }
 531
 532
 533 /*****************************************************************************
 534  * UART1
 535  ****************************************************************************/
 536 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 537         {
 538                 .mapbase        = UART1_PHYS_BASE,
 539                 .membase        = (char *)UART1_VIRT_BASE,
 540                 .irq            = IRQ_KIRKWOOD_UART_1,
 541                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 542                 .iotype         = UPIO_MEM,
 543                 .regshift       = 2,
 544                 .uartclk        = 0,
 545         }, {
 546         },
 547 };
 548
 549 static struct resource kirkwood_uart1_resources[] = {
 550         {
 551                 .start          = UART1_PHYS_BASE,
 552                 .end            = UART1_PHYS_BASE + 0xff,
 553                 .flags          = IORESOURCE_MEM,
 554         }, {
 555                 .start          = IRQ_KIRKWOOD_UART_1,
 556                 .end            = IRQ_KIRKWOOD_UART_1,
 557                 .flags          = IORESOURCE_IRQ,
 558         },
 559 };
 560
 561 static struct platform_device kirkwood_uart1 = {
 562         .name                   = "serial8250",
 563         .id                     = 1,
 564         .dev                    = {
 565                 .platform_data  = kirkwood_uart1_data,
 566         },
 567         .resource               = kirkwood_uart1_resources,
 568         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 569 };
 570
 571 void __init kirkwood_uart1_init(void)
 572 {
 573         platform_device_register(&kirkwood_uart1);
 574 }
 575
 576
 577 /*****************************************************************************
 578  * Cryptographic Engines and Security Accelerator (CESA)
 579  ****************************************************************************/
 580
 581 static struct resource kirkwood_crypto_res[] = {
 582         {
 583                 .name   = "regs",
 584                 .start  = CRYPTO_PHYS_BASE,
 585                 .end    = CRYPTO_PHYS_BASE + 0xffff,
 586                 .flags  = IORESOURCE_MEM,
 587         }, {
 588                 .name   = "sram",
 589                 .start  = KIRKWOOD_SRAM_PHYS_BASE,
 590                 .end    = KIRKWOOD_SRAM_PHYS_BASE + KIRKWOOD_SRAM_SIZE - 1,
 591                 .flags  = IORESOURCE_MEM,
 592         }, {
 593                 .name   = "crypto interrupt",
 594                 .start  = IRQ_KIRKWOOD_CRYPTO,
 595                 .end    = IRQ_KIRKWOOD_CRYPTO,
 596                 .flags  = IORESOURCE_IRQ,
 597         },
 598 };
 599
 600 static struct platform_device kirkwood_crypto_device = {
 601         .name           = "mv_crypto",
 602         .id             = -1,
 603         .num_resources  = ARRAY_SIZE(kirkwood_crypto_res),
 604         .resource       = kirkwood_crypto_res,
 605 };
 606
 607 void __init kirkwood_crypto_init(void)
 608 {
 609         kirkwood_clk_ctrl |= CGC_CRYPTO;
 610         platform_device_register(&kirkwood_crypto_device);
 611 }
 612
 613
 614 /*****************************************************************************
 615  * XOR
 616  ****************************************************************************/
 617 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 618         .dram           = &kirkwood_mbus_dram_info,
 619 };
 620
 621 static u64 kirkwood_xor_dmamask = DMA_BIT_MASK(32);
 622
 623
 624 /*****************************************************************************
 625  * XOR0
 626  ****************************************************************************/
 627 static struct resource kirkwood_xor0_shared_resources[] = {
 628         {
 629                 .name   = "xor 0 low",
 630                 .start  = XOR0_PHYS_BASE,
 631                 .end    = XOR0_PHYS_BASE + 0xff,
 632                 .flags  = IORESOURCE_MEM,
 633         }, {
 634                 .name   = "xor 0 high",
 635                 .start  = XOR0_HIGH_PHYS_BASE,
 636                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 637                 .flags  = IORESOURCE_MEM,
 638         },
 639 };
 640
 641 static struct platform_device kirkwood_xor0_shared = {
 642         .name           = MV_XOR_SHARED_NAME,
 643         .id             = 0,
 644         .dev            = {
 645                 .platform_data = &kirkwood_xor_shared_data,
 646         },
 647         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 648         .resource       = kirkwood_xor0_shared_resources,
 649 };
 650
 651 static struct resource kirkwood_xor00_resources[] = {
 652         [0] = {
 653                 .start  = IRQ_KIRKWOOD_XOR_00,
 654                 .end    = IRQ_KIRKWOOD_XOR_00,
 655                 .flags  = IORESOURCE_IRQ,
 656         },
 657 };
 658
 659 static struct mv_xor_platform_data kirkwood_xor00_data = {
 660         .shared         = &kirkwood_xor0_shared,
 661         .hw_id          = 0,
 662         .pool_size      = PAGE_SIZE,
 663 };
 664
 665 static struct platform_device kirkwood_xor00_channel = {
 666         .name           = MV_XOR_NAME,
 667         .id             = 0,
 668         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 669         .resource       = kirkwood_xor00_resources,
 670         .dev            = {
 671                 .dma_mask               = &kirkwood_xor_dmamask,
 672                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 673                 .platform_data          = &kirkwood_xor00_data,
 674         },
 675 };
 676
 677 static struct resource kirkwood_xor01_resources[] = {
 678         [0] = {
 679                 .start  = IRQ_KIRKWOOD_XOR_01,
 680                 .end    = IRQ_KIRKWOOD_XOR_01,
 681                 .flags  = IORESOURCE_IRQ,
 682         },
 683 };
 684
 685 static struct mv_xor_platform_data kirkwood_xor01_data = {
 686         .shared         = &kirkwood_xor0_shared,
 687         .hw_id          = 1,
 688         .pool_size      = PAGE_SIZE,
 689 };
 690
 691 static struct platform_device kirkwood_xor01_channel = {
 692         .name           = MV_XOR_NAME,
 693         .id             = 1,
 694         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 695         .resource       = kirkwood_xor01_resources,
 696         .dev            = {
 697                 .dma_mask               = &kirkwood_xor_dmamask,
 698                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 699                 .platform_data          = &kirkwood_xor01_data,
 700         },
 701 };
 702
 703 static void __init kirkwood_xor0_init(void)
 704 {
 705         kirkwood_clk_ctrl |= CGC_XOR0;
 706         platform_device_register(&kirkwood_xor0_shared);
 707
 708         /*
 709          * two engines can't do memset simultaneously, this limitation
 710          * satisfied by removing memset support from one of the engines.
 711          */
 712         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 713         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 714         platform_device_register(&kirkwood_xor00_channel);
 715
 716         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 717         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 718         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 719         platform_device_register(&kirkwood_xor01_channel);
 720 }
 721
 722
 723 /*****************************************************************************
 724  * XOR1
 725  ****************************************************************************/
 726 static struct resource kirkwood_xor1_shared_resources[] = {
 727         {
 728                 .name   = "xor 1 low",
 729                 .start  = XOR1_PHYS_BASE,
 730                 .end    = XOR1_PHYS_BASE + 0xff,
 731                 .flags  = IORESOURCE_MEM,
 732         }, {
 733                 .name   = "xor 1 high",
 734                 .start  = XOR1_HIGH_PHYS_BASE,
 735                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 736                 .flags  = IORESOURCE_MEM,
 737         },
 738 };
 739
 740 static struct platform_device kirkwood_xor1_shared = {
 741         .name           = MV_XOR_SHARED_NAME,
 742         .id             = 1,
 743         .dev            = {
 744                 .platform_data = &kirkwood_xor_shared_data,
 745         },
 746         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 747         .resource       = kirkwood_xor1_shared_resources,
 748 };
 749
 750 static struct resource kirkwood_xor10_resources[] = {
 751         [0] = {
 752                 .start  = IRQ_KIRKWOOD_XOR_10,
 753                 .end    = IRQ_KIRKWOOD_XOR_10,
 754                 .flags  = IORESOURCE_IRQ,
 755         },
 756 };
 757
 758 static struct mv_xor_platform_data kirkwood_xor10_data = {
 759         .shared         = &kirkwood_xor1_shared,
 760         .hw_id          = 0,
 761         .pool_size      = PAGE_SIZE,
 762 };
 763
 764 static struct platform_device kirkwood_xor10_channel = {
 765         .name           = MV_XOR_NAME,
 766         .id             = 2,
 767         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 768         .resource       = kirkwood_xor10_resources,
 769         .dev            = {
 770                 .dma_mask               = &kirkwood_xor_dmamask,
 771                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 772                 .platform_data          = &kirkwood_xor10_data,
 773         },
 774 };
 775
 776 static struct resource kirkwood_xor11_resources[] = {
 777         [0] = {
 778                 .start  = IRQ_KIRKWOOD_XOR_11,
 779                 .end    = IRQ_KIRKWOOD_XOR_11,
 780                 .flags  = IORESOURCE_IRQ,
 781         },
 782 };
 783
 784 static struct mv_xor_platform_data kirkwood_xor11_data = {
 785         .shared         = &kirkwood_xor1_shared,
 786         .hw_id          = 1,
 787         .pool_size      = PAGE_SIZE,
 788 };
 789
 790 static struct platform_device kirkwood_xor11_channel = {
 791         .name           = MV_XOR_NAME,
 792         .id             = 3,
 793         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 794         .resource       = kirkwood_xor11_resources,
 795         .dev            = {
 796                 .dma_mask               = &kirkwood_xor_dmamask,
 797                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 798                 .platform_data          = &kirkwood_xor11_data,
 799         },
 800 };
 801
 802 static void __init kirkwood_xor1_init(void)
 803 {
 804         kirkwood_clk_ctrl |= CGC_XOR1;
 805         platform_device_register(&kirkwood_xor1_shared);
 806
 807         /*
 808          * two engines can't do memset simultaneously, this limitation
 809          * satisfied by removing memset support from one of the engines.
 810          */
 811         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 812         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 813         platform_device_register(&kirkwood_xor10_channel);
 814
 815         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 816         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 817         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 818         platform_device_register(&kirkwood_xor11_channel);
 819 }
 820
 821
 822 /*****************************************************************************
 823  * Watchdog
 824  ****************************************************************************/
 825 static struct orion_wdt_platform_data kirkwood_wdt_data = {
 826         .tclk           = 0,
 827 };
 828
 829 static struct platform_device kirkwood_wdt_device = {
 830         .name           = "orion_wdt",
 831         .id             = -1,
 832         .dev            = {
 833                 .platform_data  = &kirkwood_wdt_data,
 834         },
 835         .num_resources  = 0,
 836 };
 837
 838 static void __init kirkwood_wdt_init(void)
 839 {
 840         kirkwood_wdt_data.tclk = kirkwood_tclk;
 841         platform_device_register(&kirkwood_wdt_device);
 842 }
 843
 844
 845 /*****************************************************************************
 846  * Time handling
 847  ****************************************************************************/
 848 int kirkwood_tclk;
 849
 850 int __init kirkwood_find_tclk(void)
 851 {
 852         u32 dev, rev;
 853
 854         kirkwood_pcie_id(&dev, &rev);
 855
 856         if ((dev == MV88F6281_DEV_ID && (rev == MV88F6281_REV_A0 ||
 857                                         rev == MV88F6281_REV_A1)) ||
 858             (dev == MV88F6282_DEV_ID))
 859                 return 200000000;
 860
 861         return 166666667;
 862 }
 863
 864 static void __init kirkwood_timer_init(void)
 865 {
 866         kirkwood_tclk = kirkwood_find_tclk();
 867         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 868 }
 869
 870 struct sys_timer kirkwood_timer = {
 871         .init = kirkwood_timer_init,
 872 };
 873
 874
 875 /*****************************************************************************
 876  * General
 877  ****************************************************************************/
 878 /*
 879  * Identify device ID and revision.
 880  */
 881 static char * __init kirkwood_id(void)
 882 {
 883         u32 dev, rev;
 884
 885         kirkwood_pcie_id(&dev, &rev);
 886
 887         if (dev == MV88F6281_DEV_ID) {
 888                 if (rev == MV88F6281_REV_Z0)
 889                         return "MV88F6281-Z0";
 890                 else if (rev == MV88F6281_REV_A0)
 891                         return "MV88F6281-A0";
 892                 else if (rev == MV88F6281_REV_A1)
 893                         return "MV88F6281-A1";
 894                 else
 895                         return "MV88F6281-Rev-Unsupported";
 896         } else if (dev == MV88F6192_DEV_ID) {
 897                 if (rev == MV88F6192_REV_Z0)
 898                         return "MV88F6192-Z0";
 899                 else if (rev == MV88F6192_REV_A0)
 900                         return "MV88F6192-A0";
 901                 else if (rev == MV88F6192_REV_A1)
 902                         return "MV88F6192-A1";
 903                 else
 904                         return "MV88F6192-Rev-Unsupported";
 905         } else if (dev == MV88F6180_DEV_ID) {
 906                 if (rev == MV88F6180_REV_A0)
 907                         return "MV88F6180-Rev-A0";
 908                 else if (rev == MV88F6180_REV_A1)
 909                         return "MV88F6180-Rev-A1";
 910                 else
 911                         return "MV88F6180-Rev-Unsupported";
 912         } else if (dev == MV88F6282_DEV_ID) {
 913                 if (rev == MV88F6282_REV_A0)
 914                         return "MV88F6282-Rev-A0";
 915                 else
 916                         return "MV88F6282-Rev-Unsupported";
 917         } else {
 918                 return "Device-Unknown";
 919         }
 920 }
 921
 922 static void __init kirkwood_l2_init(void)
 923 {
 924 #ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
 925         writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
 926         feroceon_l2_init(1);
 927 #else
 928         writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
 929         feroceon_l2_init(0);
 930 #endif
 931 }
 932
 933 void __init kirkwood_init(void)
 934 {
 935         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 936                 kirkwood_id(), kirkwood_tclk);
 937         kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
 938         kirkwood_ge01_shared_data.t_clk = kirkwood_tclk;
 939         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
 940         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
 941         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
 942
 943         /*
 944          * Disable propagation of mbus errors to the CPU local bus,
 945          * as this causes mbus errors (which can occur for example
 946          * for PCI aborts) to throw CPU aborts, which we're not set
 947          * up to deal with.
 948          */
 949         writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
 950
 951         kirkwood_setup_cpu_mbus();
 952
 953 #ifdef CONFIG_CACHE_FEROCEON_L2
 954         kirkwood_l2_init();
 955 #endif
 956
 957         /* internal devices that every board has */
 958         kirkwood_rtc_init();
 959         kirkwood_wdt_init();
 960         kirkwood_xor0_init();
 961         kirkwood_xor1_init();
 962         kirkwood_crypto_init();
 963 }
 964
 965 static int __init kirkwood_clock_gate(void)
 966 {
 967         unsigned int curr = readl(CLOCK_GATING_CTRL);
 968         u32 dev, rev;
 969
 970         kirkwood_pcie_id(&dev, &rev);
 971         printk(KERN_DEBUG "Gating clock of unused units\n");
 972         printk(KERN_DEBUG "before: 0x%08x\n", curr);
 973
 974         /* Make sure those units are accessible */
 975         writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0 | CGC_PEX1, CLOCK_GATING_CTRL);
 976
 977         /* For SATA: first shutdown the phy */
 978         if (!(kirkwood_clk_ctrl & CGC_SATA0)) {
 979                 /* Disable PLL and IVREF */
 980                 writel(readl(SATA0_PHY_MODE_2) & ~0xf, SATA0_PHY_MODE_2);
 981                 /* Disable PHY */
 982                 writel(readl(SATA0_IF_CTRL) | 0x200, SATA0_IF_CTRL);
 983         }
 984         if (!(kirkwood_clk_ctrl & CGC_SATA1)) {
 985                 /* Disable PLL and IVREF */
 986                 writel(readl(SATA1_PHY_MODE_2) & ~0xf, SATA1_PHY_MODE_2);
 987                 /* Disable PHY */
 988                 writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL);
 989         }
 990
 991         /* For PCIe: first shutdown the phy */
 992         if (!(kirkwood_clk_ctrl & CGC_PEX0)) {
 993                 writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL);
 994                 while (1)
 995                         if (readl(PCIE_STATUS) & 0x1)
 996                                 break;
 997                 writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL);
 998         }
 999
1000         /* For PCIe 1: first shutdown the phy */
1001         if (dev == MV88F6282_DEV_ID) {
1002                 if (!(kirkwood_clk_ctrl & CGC_PEX1)) {
1003                         writel(readl(PCIE1_LINK_CTRL) | 0x10, PCIE1_LINK_CTRL);
1004                         while (1)
1005                                 if (readl(PCIE1_STATUS) & 0x1)
1006                                         break;
1007                         writel(readl(PCIE1_LINK_CTRL) & ~0x10, PCIE1_LINK_CTRL);
1008                 }
1009         } else  /* keep this bit set for devices that don't have PCIe1 */
1010                 kirkwood_clk_ctrl |= CGC_PEX1;
1011
1012         /* Now gate clock the required units */
1013         writel(kirkwood_clk_ctrl, CLOCK_GATING_CTRL);
1014         printk(KERN_DEBUG " after: 0x%08x\n", readl(CLOCK_GATING_CTRL));
1015
1016         return 0;
1017 }
1018 late_initcall(kirkwood_clock_gate);