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/audio.h>
  29 #include <plat/cache-feroceon-l2.h>
  30 #include <plat/ehci-orion.h>
  31 #include <plat/mvsdio.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  ****************************************************************************/
  41 static struct map_desc kirkwood_io_desc[] __initdata = {
  42         {
  43                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  44                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  45                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  46                 .type           = MT_DEVICE,
  47         }, {
  48                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  49                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  50                 .length         = KIRKWOOD_REGS_SIZE,
  51                 .type           = MT_DEVICE,
  52         },
  53 };
  54
  55 void __init kirkwood_map_io(void)
  56 {
  57         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  58 }
  59
  60 /*
  61  * Default clock control bits.  Any bit _not_ set in this variable
  62  * will be cleared from the hardware after platform devices have been
  63  * registered.  Some reserved bits must be set to 1.
  64  */
  65 unsigned int kirkwood_clk_ctrl = CGC_DUNIT | CGC_RESERVED;
  66
  67
  68 /*****************************************************************************
  69  * EHCI
  70  ****************************************************************************/
  71 static struct orion_ehci_data kirkwood_ehci_data = {
  72         .dram           = &kirkwood_mbus_dram_info,
  73         .phy_version    = EHCI_PHY_NA,
  74 };
  75
  76 static u64 ehci_dmamask = 0xffffffffUL;
  77
  78
  79 /*****************************************************************************
  80  * EHCI0
  81  ****************************************************************************/
  82 static struct resource kirkwood_ehci_resources[] = {
  83         {
  84                 .start  = USB_PHYS_BASE,
  85                 .end    = USB_PHYS_BASE + 0x0fff,
  86                 .flags  = IORESOURCE_MEM,
  87         }, {
  88                 .start  = IRQ_KIRKWOOD_USB,
  89                 .end    = IRQ_KIRKWOOD_USB,
  90                 .flags  = IORESOURCE_IRQ,
  91         },
  92 };
  93
  94 static struct platform_device kirkwood_ehci = {
  95         .name           = "orion-ehci",
  96         .id             = 0,
  97         .dev            = {
  98                 .dma_mask               = &ehci_dmamask,
  99                 .coherent_dma_mask      = 0xffffffff,
 100                 .platform_data          = &kirkwood_ehci_data,
 101         },
 102         .resource       = kirkwood_ehci_resources,
 103         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
 104 };
 105
 106 void __init kirkwood_ehci_init(void)
 107 {
 108         kirkwood_clk_ctrl |= CGC_USB0;
 109         platform_device_register(&kirkwood_ehci);
 110 }
 111
 112
 113 /*****************************************************************************
 114  * GE00
 115  ****************************************************************************/
 116 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 117         .dram           = &kirkwood_mbus_dram_info,
 118 };
 119
 120 static struct resource kirkwood_ge00_shared_resources[] = {
 121         {
 122                 .name   = "ge00 base",
 123                 .start  = GE00_PHYS_BASE + 0x2000,
 124                 .end    = GE00_PHYS_BASE + 0x3fff,
 125                 .flags  = IORESOURCE_MEM,
 126         }, {
 127                 .name   = "ge00 err irq",
 128                 .start  = IRQ_KIRKWOOD_GE00_ERR,
 129                 .end    = IRQ_KIRKWOOD_GE00_ERR,
 130                 .flags  = IORESOURCE_IRQ,
 131         },
 132 };
 133
 134 static struct platform_device kirkwood_ge00_shared = {
 135         .name           = MV643XX_ETH_SHARED_NAME,
 136         .id             = 0,
 137         .dev            = {
 138                 .platform_data  = &kirkwood_ge00_shared_data,
 139         },
 140         .num_resources  = ARRAY_SIZE(kirkwood_ge00_shared_resources),
 141         .resource       = kirkwood_ge00_shared_resources,
 142 };
 143
 144 static struct resource kirkwood_ge00_resources[] = {
 145         {
 146                 .name   = "ge00 irq",
 147                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 148                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 149                 .flags  = IORESOURCE_IRQ,
 150         },
 151 };
 152
 153 static struct platform_device kirkwood_ge00 = {
 154         .name           = MV643XX_ETH_NAME,
 155         .id             = 0,
 156         .num_resources  = 1,
 157         .resource       = kirkwood_ge00_resources,
 158         .dev            = {
 159                 .coherent_dma_mask      = 0xffffffff,
 160         },
 161 };
 162
 163 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 164 {
 165         kirkwood_clk_ctrl |= CGC_GE0;
 166         eth_data->shared = &kirkwood_ge00_shared;
 167         kirkwood_ge00.dev.platform_data = eth_data;
 168
 169         platform_device_register(&kirkwood_ge00_shared);
 170         platform_device_register(&kirkwood_ge00);
 171 }
 172
 173
 174 /*****************************************************************************
 175  * GE01
 176  ****************************************************************************/
 177 struct mv643xx_eth_shared_platform_data kirkwood_ge01_shared_data = {
 178         .dram           = &kirkwood_mbus_dram_info,
 179         .shared_smi     = &kirkwood_ge00_shared,
 180 };
 181
 182 static struct resource kirkwood_ge01_shared_resources[] = {
 183         {
 184                 .name   = "ge01 base",
 185                 .start  = GE01_PHYS_BASE + 0x2000,
 186                 .end    = GE01_PHYS_BASE + 0x3fff,
 187                 .flags  = IORESOURCE_MEM,
 188         }, {
 189                 .name   = "ge01 err irq",
 190                 .start  = IRQ_KIRKWOOD_GE01_ERR,
 191                 .end    = IRQ_KIRKWOOD_GE01_ERR,
 192                 .flags  = IORESOURCE_IRQ,
 193         },
 194 };
 195
 196 static struct platform_device kirkwood_ge01_shared = {
 197         .name           = MV643XX_ETH_SHARED_NAME,
 198         .id             = 1,
 199         .dev            = {
 200                 .platform_data  = &kirkwood_ge01_shared_data,
 201         },
 202         .num_resources  = ARRAY_SIZE(kirkwood_ge01_shared_resources),
 203         .resource       = kirkwood_ge01_shared_resources,
 204 };
 205
 206 static struct resource kirkwood_ge01_resources[] = {
 207         {
 208                 .name   = "ge01 irq",
 209                 .start  = IRQ_KIRKWOOD_GE01_SUM,
 210                 .end    = IRQ_KIRKWOOD_GE01_SUM,
 211                 .flags  = IORESOURCE_IRQ,
 212         },
 213 };
 214
 215 static struct platform_device kirkwood_ge01 = {
 216         .name           = MV643XX_ETH_NAME,
 217         .id             = 1,
 218         .num_resources  = 1,
 219         .resource       = kirkwood_ge01_resources,
 220         .dev            = {
 221                 .coherent_dma_mask      = 0xffffffff,
 222         },
 223 };
 224
 225 void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 226 {
 227         kirkwood_clk_ctrl |= CGC_GE1;
 228         eth_data->shared = &kirkwood_ge01_shared;
 229         kirkwood_ge01.dev.platform_data = eth_data;
 230
 231         platform_device_register(&kirkwood_ge01_shared);
 232         platform_device_register(&kirkwood_ge01);
 233 }
 234
 235
 236 /*****************************************************************************
 237  * Ethernet switch
 238  ****************************************************************************/
 239 static struct resource kirkwood_switch_resources[] = {
 240         {
 241                 .start  = 0,
 242                 .end    = 0,
 243                 .flags  = IORESOURCE_IRQ,
 244         },
 245 };
 246
 247 static struct platform_device kirkwood_switch_device = {
 248         .name           = "dsa",
 249         .id             = 0,
 250         .num_resources  = 0,
 251         .resource       = kirkwood_switch_resources,
 252 };
 253
 254 void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
 255 {
 256         int i;
 257
 258         if (irq != NO_IRQ) {
 259                 kirkwood_switch_resources[0].start = irq;
 260                 kirkwood_switch_resources[0].end = irq;
 261                 kirkwood_switch_device.num_resources = 1;
 262         }
 263
 264         d->netdev = &kirkwood_ge00.dev;
 265         for (i = 0; i < d->nr_chips; i++)
 266                 d->chip[i].mii_bus = &kirkwood_ge00_shared.dev;
 267         kirkwood_switch_device.dev.platform_data = d;
 268
 269         platform_device_register(&kirkwood_switch_device);
 270 }
 271
 272
 273 /*****************************************************************************
 274  * NAND flash
 275  ****************************************************************************/
 276 static struct resource kirkwood_nand_resource = {
 277         .flags          = IORESOURCE_MEM,
 278         .start          = KIRKWOOD_NAND_MEM_PHYS_BASE,
 279         .end            = KIRKWOOD_NAND_MEM_PHYS_BASE +
 280                                 KIRKWOOD_NAND_MEM_SIZE - 1,
 281 };
 282
 283 static struct orion_nand_data kirkwood_nand_data = {
 284         .cle            = 0,
 285         .ale            = 1,
 286         .width          = 8,
 287 };
 288
 289 static struct platform_device kirkwood_nand_flash = {
 290         .name           = "orion_nand",
 291         .id             = -1,
 292         .dev            = {
 293                 .platform_data  = &kirkwood_nand_data,
 294         },
 295         .resource       = &kirkwood_nand_resource,
 296         .num_resources  = 1,
 297 };
 298
 299 void __init kirkwood_nand_init(struct mtd_partition *parts, int nr_parts,
 300                                int chip_delay)
 301 {
 302         kirkwood_clk_ctrl |= CGC_RUNIT;
 303         kirkwood_nand_data.parts = parts;
 304         kirkwood_nand_data.nr_parts = nr_parts;
 305         kirkwood_nand_data.chip_delay = chip_delay;
 306         platform_device_register(&kirkwood_nand_flash);
 307 }
 308
 309 void __init kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts,
 310                                    int (*dev_ready)(struct mtd_info *))
 311 {
 312         kirkwood_clk_ctrl |= CGC_RUNIT;
 313         kirkwood_nand_data.parts = parts;
 314         kirkwood_nand_data.nr_parts = nr_parts;
 315         kirkwood_nand_data.dev_ready = dev_ready;
 316         platform_device_register(&kirkwood_nand_flash);
 317 }
 318
 319 /*****************************************************************************
 320  * SoC RTC
 321  ****************************************************************************/
 322 static struct resource kirkwood_rtc_resource = {
 323         .start  = RTC_PHYS_BASE,
 324         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 325         .flags  = IORESOURCE_MEM,
 326 };
 327
 328 static void __init kirkwood_rtc_init(void)
 329 {
 330         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 331 }
 332
 333
 334 /*****************************************************************************
 335  * SATA
 336  ****************************************************************************/
 337 static struct resource kirkwood_sata_resources[] = {
 338         {
 339                 .name   = "sata base",
 340                 .start  = SATA_PHYS_BASE,
 341                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 342                 .flags  = IORESOURCE_MEM,
 343         }, {
 344                 .name   = "sata irq",
 345                 .start  = IRQ_KIRKWOOD_SATA,
 346                 .end    = IRQ_KIRKWOOD_SATA,
 347                 .flags  = IORESOURCE_IRQ,
 348         },
 349 };
 350
 351 static struct platform_device kirkwood_sata = {
 352         .name           = "sata_mv",
 353         .id             = 0,
 354         .dev            = {
 355                 .coherent_dma_mask      = 0xffffffff,
 356         },
 357         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 358         .resource       = kirkwood_sata_resources,
 359 };
 360
 361 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 362 {
 363         kirkwood_clk_ctrl |= CGC_SATA0;
 364         if (sata_data->n_ports > 1)
 365                 kirkwood_clk_ctrl |= CGC_SATA1;
 366         sata_data->dram = &kirkwood_mbus_dram_info;
 367         kirkwood_sata.dev.platform_data = sata_data;
 368         platform_device_register(&kirkwood_sata);
 369 }
 370
 371
 372 /*****************************************************************************
 373  * SD/SDIO/MMC
 374  ****************************************************************************/
 375 static struct resource mvsdio_resources[] = {
 376         [0] = {
 377                 .start  = SDIO_PHYS_BASE,
 378                 .end    = SDIO_PHYS_BASE + SZ_1K - 1,
 379                 .flags  = IORESOURCE_MEM,
 380         },
 381         [1] = {
 382                 .start  = IRQ_KIRKWOOD_SDIO,
 383                 .end    = IRQ_KIRKWOOD_SDIO,
 384                 .flags  = IORESOURCE_IRQ,
 385         },
 386 };
 387
 388 static u64 mvsdio_dmamask = 0xffffffffUL;
 389
 390 static struct platform_device kirkwood_sdio = {
 391         .name           = "mvsdio",
 392         .id             = -1,
 393         .dev            = {
 394                 .dma_mask = &mvsdio_dmamask,
 395                 .coherent_dma_mask = 0xffffffff,
 396         },
 397         .num_resources  = ARRAY_SIZE(mvsdio_resources),
 398         .resource       = mvsdio_resources,
 399 };
 400
 401 void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 402 {
 403         u32 dev, rev;
 404
 405         kirkwood_pcie_id(&dev, &rev);
 406         if (rev == 0)  /* catch all Kirkwood Z0's */
 407                 mvsdio_data->clock = 100000000;
 408         else
 409                 mvsdio_data->clock = 200000000;
 410         mvsdio_data->dram = &kirkwood_mbus_dram_info;
 411         kirkwood_clk_ctrl |= CGC_SDIO;
 412         kirkwood_sdio.dev.platform_data = mvsdio_data;
 413         platform_device_register(&kirkwood_sdio);
 414 }
 415
 416
 417 /*****************************************************************************
 418  * SPI
 419  ****************************************************************************/
 420 static struct orion_spi_info kirkwood_spi_plat_data = {
 421 };
 422
 423 static struct resource kirkwood_spi_resources[] = {
 424         {
 425                 .start  = SPI_PHYS_BASE,
 426                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 427                 .flags  = IORESOURCE_MEM,
 428         },
 429 };
 430
 431 static struct platform_device kirkwood_spi = {
 432         .name           = "orion_spi",
 433         .id             = 0,
 434         .resource       = kirkwood_spi_resources,
 435         .dev            = {
 436                 .platform_data  = &kirkwood_spi_plat_data,
 437         },
 438         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 439 };
 440
 441 void __init kirkwood_spi_init()
 442 {
 443         kirkwood_clk_ctrl |= CGC_RUNIT;
 444         platform_device_register(&kirkwood_spi);
 445 }
 446
 447
 448 /*****************************************************************************
 449  * I2C
 450  ****************************************************************************/
 451 static struct mv64xxx_i2c_pdata kirkwood_i2c_pdata = {
 452         .freq_m         = 8, /* assumes 166 MHz TCLK */
 453         .freq_n         = 3,
 454         .timeout        = 1000, /* Default timeout of 1 second */
 455 };
 456
 457 static struct resource kirkwood_i2c_resources[] = {
 458         {
 459                 .start  = I2C_PHYS_BASE,
 460                 .end    = I2C_PHYS_BASE + 0x1f,
 461                 .flags  = IORESOURCE_MEM,
 462         }, {
 463                 .start  = IRQ_KIRKWOOD_TWSI,
 464                 .end    = IRQ_KIRKWOOD_TWSI,
 465                 .flags  = IORESOURCE_IRQ,
 466         },
 467 };
 468
 469 static struct platform_device kirkwood_i2c = {
 470         .name           = MV64XXX_I2C_CTLR_NAME,
 471         .id             = 0,
 472         .num_resources  = ARRAY_SIZE(kirkwood_i2c_resources),
 473         .resource       = kirkwood_i2c_resources,
 474         .dev            = {
 475                 .platform_data  = &kirkwood_i2c_pdata,
 476         },
 477 };
 478
 479 void __init kirkwood_i2c_init(void)
 480 {
 481         platform_device_register(&kirkwood_i2c);
 482 }
 483
 484
 485 /*****************************************************************************
 486  * UART0
 487  ****************************************************************************/
 488 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 489         {
 490                 .mapbase        = UART0_PHYS_BASE,
 491                 .membase        = (char *)UART0_VIRT_BASE,
 492                 .irq            = IRQ_KIRKWOOD_UART_0,
 493                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 494                 .iotype         = UPIO_MEM,
 495                 .regshift       = 2,
 496                 .uartclk        = 0,
 497         }, {
 498         },
 499 };
 500
 501 static struct resource kirkwood_uart0_resources[] = {
 502         {
 503                 .start          = UART0_PHYS_BASE,
 504                 .end            = UART0_PHYS_BASE + 0xff,
 505                 .flags          = IORESOURCE_MEM,
 506         }, {
 507                 .start          = IRQ_KIRKWOOD_UART_0,
 508                 .end            = IRQ_KIRKWOOD_UART_0,
 509                 .flags          = IORESOURCE_IRQ,
 510         },
 511 };
 512
 513 static struct platform_device kirkwood_uart0 = {
 514         .name                   = "serial8250",
 515         .id                     = 0,
 516         .dev                    = {
 517                 .platform_data  = kirkwood_uart0_data,
 518         },
 519         .resource               = kirkwood_uart0_resources,
 520         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 521 };
 522
 523 void __init kirkwood_uart0_init(void)
 524 {
 525         platform_device_register(&kirkwood_uart0);
 526 }
 527
 528
 529 /*****************************************************************************
 530  * UART1
 531  ****************************************************************************/
 532 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 533         {
 534                 .mapbase        = UART1_PHYS_BASE,
 535                 .membase        = (char *)UART1_VIRT_BASE,
 536                 .irq            = IRQ_KIRKWOOD_UART_1,
 537                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 538                 .iotype         = UPIO_MEM,
 539                 .regshift       = 2,
 540                 .uartclk        = 0,
 541         }, {
 542         },
 543 };
 544
 545 static struct resource kirkwood_uart1_resources[] = {
 546         {
 547                 .start          = UART1_PHYS_BASE,
 548                 .end            = UART1_PHYS_BASE + 0xff,
 549                 .flags          = IORESOURCE_MEM,
 550         }, {
 551                 .start          = IRQ_KIRKWOOD_UART_1,
 552                 .end            = IRQ_KIRKWOOD_UART_1,
 553                 .flags          = IORESOURCE_IRQ,
 554         },
 555 };
 556
 557 static struct platform_device kirkwood_uart1 = {
 558         .name                   = "serial8250",
 559         .id                     = 1,
 560         .dev                    = {
 561                 .platform_data  = kirkwood_uart1_data,
 562         },
 563         .resource               = kirkwood_uart1_resources,
 564         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 565 };
 566
 567 void __init kirkwood_uart1_init(void)
 568 {
 569         platform_device_register(&kirkwood_uart1);
 570 }
 571
 572
 573 /*****************************************************************************
 574  * Cryptographic Engines and Security Accelerator (CESA)
 575  ****************************************************************************/
 576
 577 static struct resource kirkwood_crypto_res[] = {
 578         {
 579                 .name   = "regs",
 580                 .start  = CRYPTO_PHYS_BASE,
 581                 .end    = CRYPTO_PHYS_BASE + 0xffff,
 582                 .flags  = IORESOURCE_MEM,
 583         }, {
 584                 .name   = "sram",
 585                 .start  = KIRKWOOD_SRAM_PHYS_BASE,
 586                 .end    = KIRKWOOD_SRAM_PHYS_BASE + KIRKWOOD_SRAM_SIZE - 1,
 587                 .flags  = IORESOURCE_MEM,
 588         }, {
 589                 .name   = "crypto interrupt",
 590                 .start  = IRQ_KIRKWOOD_CRYPTO,
 591                 .end    = IRQ_KIRKWOOD_CRYPTO,
 592                 .flags  = IORESOURCE_IRQ,
 593         },
 594 };
 595
 596 static struct platform_device kirkwood_crypto_device = {
 597         .name           = "mv_crypto",
 598         .id             = -1,
 599         .num_resources  = ARRAY_SIZE(kirkwood_crypto_res),
 600         .resource       = kirkwood_crypto_res,
 601 };
 602
 603 void __init kirkwood_crypto_init(void)
 604 {
 605         kirkwood_clk_ctrl |= CGC_CRYPTO;
 606         platform_device_register(&kirkwood_crypto_device);
 607 }
 608
 609
 610 /*****************************************************************************
 611  * XOR
 612  ****************************************************************************/
 613 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 614         .dram           = &kirkwood_mbus_dram_info,
 615 };
 616
 617 static u64 kirkwood_xor_dmamask = DMA_BIT_MASK(32);
 618
 619
 620 /*****************************************************************************
 621  * XOR0
 622  ****************************************************************************/
 623 static struct resource kirkwood_xor0_shared_resources[] = {
 624         {
 625                 .name   = "xor 0 low",
 626                 .start  = XOR0_PHYS_BASE,
 627                 .end    = XOR0_PHYS_BASE + 0xff,
 628                 .flags  = IORESOURCE_MEM,
 629         }, {
 630                 .name   = "xor 0 high",
 631                 .start  = XOR0_HIGH_PHYS_BASE,
 632                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 633                 .flags  = IORESOURCE_MEM,
 634         },
 635 };
 636
 637 static struct platform_device kirkwood_xor0_shared = {
 638         .name           = MV_XOR_SHARED_NAME,
 639         .id             = 0,
 640         .dev            = {
 641                 .platform_data = &kirkwood_xor_shared_data,
 642         },
 643         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 644         .resource       = kirkwood_xor0_shared_resources,
 645 };
 646
 647 static struct resource kirkwood_xor00_resources[] = {
 648         [0] = {
 649                 .start  = IRQ_KIRKWOOD_XOR_00,
 650                 .end    = IRQ_KIRKWOOD_XOR_00,
 651                 .flags  = IORESOURCE_IRQ,
 652         },
 653 };
 654
 655 static struct mv_xor_platform_data kirkwood_xor00_data = {
 656         .shared         = &kirkwood_xor0_shared,
 657         .hw_id          = 0,
 658         .pool_size      = PAGE_SIZE,
 659 };
 660
 661 static struct platform_device kirkwood_xor00_channel = {
 662         .name           = MV_XOR_NAME,
 663         .id             = 0,
 664         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 665         .resource       = kirkwood_xor00_resources,
 666         .dev            = {
 667                 .dma_mask               = &kirkwood_xor_dmamask,
 668                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 669                 .platform_data          = &kirkwood_xor00_data,
 670         },
 671 };
 672
 673 static struct resource kirkwood_xor01_resources[] = {
 674         [0] = {
 675                 .start  = IRQ_KIRKWOOD_XOR_01,
 676                 .end    = IRQ_KIRKWOOD_XOR_01,
 677                 .flags  = IORESOURCE_IRQ,
 678         },
 679 };
 680
 681 static struct mv_xor_platform_data kirkwood_xor01_data = {
 682         .shared         = &kirkwood_xor0_shared,
 683         .hw_id          = 1,
 684         .pool_size      = PAGE_SIZE,
 685 };
 686
 687 static struct platform_device kirkwood_xor01_channel = {
 688         .name           = MV_XOR_NAME,
 689         .id             = 1,
 690         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 691         .resource       = kirkwood_xor01_resources,
 692         .dev            = {
 693                 .dma_mask               = &kirkwood_xor_dmamask,
 694                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 695                 .platform_data          = &kirkwood_xor01_data,
 696         },
 697 };
 698
 699 static void __init kirkwood_xor0_init(void)
 700 {
 701         kirkwood_clk_ctrl |= CGC_XOR0;
 702         platform_device_register(&kirkwood_xor0_shared);
 703
 704         /*
 705          * two engines can't do memset simultaneously, this limitation
 706          * satisfied by removing memset support from one of the engines.
 707          */
 708         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 709         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 710         platform_device_register(&kirkwood_xor00_channel);
 711
 712         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 713         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 714         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 715         platform_device_register(&kirkwood_xor01_channel);
 716 }
 717
 718
 719 /*****************************************************************************
 720  * XOR1
 721  ****************************************************************************/
 722 static struct resource kirkwood_xor1_shared_resources[] = {
 723         {
 724                 .name   = "xor 1 low",
 725                 .start  = XOR1_PHYS_BASE,
 726                 .end    = XOR1_PHYS_BASE + 0xff,
 727                 .flags  = IORESOURCE_MEM,
 728         }, {
 729                 .name   = "xor 1 high",
 730                 .start  = XOR1_HIGH_PHYS_BASE,
 731                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 732                 .flags  = IORESOURCE_MEM,
 733         },
 734 };
 735
 736 static struct platform_device kirkwood_xor1_shared = {
 737         .name           = MV_XOR_SHARED_NAME,
 738         .id             = 1,
 739         .dev            = {
 740                 .platform_data = &kirkwood_xor_shared_data,
 741         },
 742         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 743         .resource       = kirkwood_xor1_shared_resources,
 744 };
 745
 746 static struct resource kirkwood_xor10_resources[] = {
 747         [0] = {
 748                 .start  = IRQ_KIRKWOOD_XOR_10,
 749                 .end    = IRQ_KIRKWOOD_XOR_10,
 750                 .flags  = IORESOURCE_IRQ,
 751         },
 752 };
 753
 754 static struct mv_xor_platform_data kirkwood_xor10_data = {
 755         .shared         = &kirkwood_xor1_shared,
 756         .hw_id          = 0,
 757         .pool_size      = PAGE_SIZE,
 758 };
 759
 760 static struct platform_device kirkwood_xor10_channel = {
 761         .name           = MV_XOR_NAME,
 762         .id             = 2,
 763         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 764         .resource       = kirkwood_xor10_resources,
 765         .dev            = {
 766                 .dma_mask               = &kirkwood_xor_dmamask,
 767                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 768                 .platform_data          = &kirkwood_xor10_data,
 769         },
 770 };
 771
 772 static struct resource kirkwood_xor11_resources[] = {
 773         [0] = {
 774                 .start  = IRQ_KIRKWOOD_XOR_11,
 775                 .end    = IRQ_KIRKWOOD_XOR_11,
 776                 .flags  = IORESOURCE_IRQ,
 777         },
 778 };
 779
 780 static struct mv_xor_platform_data kirkwood_xor11_data = {
 781         .shared         = &kirkwood_xor1_shared,
 782         .hw_id          = 1,
 783         .pool_size      = PAGE_SIZE,
 784 };
 785
 786 static struct platform_device kirkwood_xor11_channel = {
 787         .name           = MV_XOR_NAME,
 788         .id             = 3,
 789         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 790         .resource       = kirkwood_xor11_resources,
 791         .dev            = {
 792                 .dma_mask               = &kirkwood_xor_dmamask,
 793                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 794                 .platform_data          = &kirkwood_xor11_data,
 795         },
 796 };
 797
 798 static void __init kirkwood_xor1_init(void)
 799 {
 800         kirkwood_clk_ctrl |= CGC_XOR1;
 801         platform_device_register(&kirkwood_xor1_shared);
 802
 803         /*
 804          * two engines can't do memset simultaneously, this limitation
 805          * satisfied by removing memset support from one of the engines.
 806          */
 807         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 808         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 809         platform_device_register(&kirkwood_xor10_channel);
 810
 811         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 812         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 813         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 814         platform_device_register(&kirkwood_xor11_channel);
 815 }
 816
 817
 818 /*****************************************************************************
 819  * Watchdog
 820  ****************************************************************************/
 821 static struct orion_wdt_platform_data kirkwood_wdt_data = {
 822         .tclk           = 0,
 823 };
 824
 825 static struct platform_device kirkwood_wdt_device = {
 826         .name           = "orion_wdt",
 827         .id             = -1,
 828         .dev            = {
 829                 .platform_data  = &kirkwood_wdt_data,
 830         },
 831         .num_resources  = 0,
 832 };
 833
 834 static void __init kirkwood_wdt_init(void)
 835 {
 836         kirkwood_wdt_data.tclk = kirkwood_tclk;
 837         platform_device_register(&kirkwood_wdt_device);
 838 }
 839
 840
 841 /*****************************************************************************
 842  * Time handling
 843  ****************************************************************************/
 844 int kirkwood_tclk;
 845
 846 int __init kirkwood_find_tclk(void)
 847 {
 848         u32 dev, rev;
 849
 850         kirkwood_pcie_id(&dev, &rev);
 851         if (dev == MV88F6281_DEV_ID && (rev == MV88F6281_REV_A0 ||
 852                                         rev == MV88F6281_REV_A1))
 853                 return 200000000;
 854
 855         return 166666667;
 856 }
 857
 858 static void __init kirkwood_timer_init(void)
 859 {
 860         kirkwood_tclk = kirkwood_find_tclk();
 861         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 862 }
 863
 864 struct sys_timer kirkwood_timer = {
 865         .init = kirkwood_timer_init,
 866 };
 867
 868 /*****************************************************************************
 869  * Audio
 870  ****************************************************************************/
 871 static struct resource kirkwood_i2s_resources[] = {
 872         [0] = {
 873                 .start  = AUDIO_PHYS_BASE,
 874                 .end    = AUDIO_PHYS_BASE + SZ_16K - 1,
 875                 .flags  = IORESOURCE_MEM,
 876         },
 877         [1] = {
 878                 .start  = IRQ_KIRKWOOD_I2S,
 879                 .end    = IRQ_KIRKWOOD_I2S,
 880                 .flags  = IORESOURCE_IRQ,
 881         },
 882 };
 883
 884 static struct kirkwood_asoc_platform_data kirkwood_i2s_data = {
 885         .dram        = &kirkwood_mbus_dram_info,
 886         .burst       = 128,
 887 };
 888
 889 static struct platform_device kirkwood_i2s_device = {
 890         .name           = "kirkwood-i2s",
 891         .id             = -1,
 892         .num_resources  = ARRAY_SIZE(kirkwood_i2s_resources),
 893         .resource       = kirkwood_i2s_resources,
 894         .dev            = {
 895                 .platform_data  = &kirkwood_i2s_data,
 896         },
 897 };
 898
 899 static struct platform_device kirkwood_pcm_device = {
 900         .name           = "kirkwood-pcm",
 901         .id             = -1,
 902 };
 903
 904 void __init kirkwood_audio_init(void)
 905 {
 906         kirkwood_clk_ctrl |= CGC_AUDIO;
 907         platform_device_register(&kirkwood_i2s_device);
 908         platform_device_register(&kirkwood_pcm_device);
 909 }
 910
 911 /*****************************************************************************
 912  * General
 913  ****************************************************************************/
 914 /*
 915  * Identify device ID and revision.
 916  */
 917 static char * __init kirkwood_id(void)
 918 {
 919         u32 dev, rev;
 920
 921         kirkwood_pcie_id(&dev, &rev);
 922
 923         if (dev == MV88F6281_DEV_ID) {
 924                 if (rev == MV88F6281_REV_Z0)
 925                         return "MV88F6281-Z0";
 926                 else if (rev == MV88F6281_REV_A0)
 927                         return "MV88F6281-A0";
 928                 else if (rev == MV88F6281_REV_A1)
 929                         return "MV88F6281-A1";
 930                 else
 931                         return "MV88F6281-Rev-Unsupported";
 932         } else if (dev == MV88F6192_DEV_ID) {
 933                 if (rev == MV88F6192_REV_Z0)
 934                         return "MV88F6192-Z0";
 935                 else if (rev == MV88F6192_REV_A0)
 936                         return "MV88F6192-A0";
 937                 else
 938                         return "MV88F6192-Rev-Unsupported";
 939         } else if (dev == MV88F6180_DEV_ID) {
 940                 if (rev == MV88F6180_REV_A0)
 941                         return "MV88F6180-Rev-A0";
 942                 else
 943                         return "MV88F6180-Rev-Unsupported";
 944         } else {
 945                 return "Device-Unknown";
 946         }
 947 }
 948
 949 static void __init kirkwood_l2_init(void)
 950 {
 951 #ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
 952         writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
 953         feroceon_l2_init(1);
 954 #else
 955         writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
 956         feroceon_l2_init(0);
 957 #endif
 958 }
 959
 960 void __init kirkwood_init(void)
 961 {
 962         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 963                 kirkwood_id(), kirkwood_tclk);
 964         kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
 965         kirkwood_ge01_shared_data.t_clk = kirkwood_tclk;
 966         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
 967         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
 968         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
 969         kirkwood_i2s_data.tclk = kirkwood_tclk;
 970
 971         /*
 972          * Disable propagation of mbus errors to the CPU local bus,
 973          * as this causes mbus errors (which can occur for example
 974          * for PCI aborts) to throw CPU aborts, which we're not set
 975          * up to deal with.
 976          */
 977         writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
 978
 979         kirkwood_setup_cpu_mbus();
 980
 981 #ifdef CONFIG_CACHE_FEROCEON_L2
 982         kirkwood_l2_init();
 983 #endif
 984
 985         /* internal devices that every board has */
 986         kirkwood_rtc_init();
 987         kirkwood_wdt_init();
 988         kirkwood_xor0_init();
 989         kirkwood_xor1_init();
 990         kirkwood_crypto_init();
 991 }
 992
 993 static int __init kirkwood_clock_gate(void)
 994 {
 995         unsigned int curr = readl(CLOCK_GATING_CTRL);
 996
 997         printk(KERN_DEBUG "Gating clock of unused units\n");
 998         printk(KERN_DEBUG "before: 0x%08x\n", curr);
 999
1000         /* Make sure those units are accessible */
1001         writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0, CLOCK_GATING_CTRL);
1002
1003         /* For SATA: first shutdown the phy */
1004         if (!(kirkwood_clk_ctrl & CGC_SATA0)) {
1005                 /* Disable PLL and IVREF */
1006                 writel(readl(SATA0_PHY_MODE_2) & ~0xf, SATA0_PHY_MODE_2);
1007                 /* Disable PHY */
1008                 writel(readl(SATA0_IF_CTRL) | 0x200, SATA0_IF_CTRL);
1009         }
1010         if (!(kirkwood_clk_ctrl & CGC_SATA1)) {
1011                 /* Disable PLL and IVREF */
1012                 writel(readl(SATA1_PHY_MODE_2) & ~0xf, SATA1_PHY_MODE_2);
1013                 /* Disable PHY */
1014                 writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL);
1015         }
1016
1017         /* For PCIe: first shutdown the phy */
1018         if (!(kirkwood_clk_ctrl & CGC_PEX0)) {
1019                 writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL);
1020                 while (1)
1021                         if (readl(PCIE_STATUS) & 0x1)
1022                                 break;
1023                 writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL);
1024         }
1025
1026         /* Now gate clock the required units */
1027         writel(kirkwood_clk_ctrl, CLOCK_GATING_CTRL);
1028         printk(KERN_DEBUG " after: 0x%08x\n", readl(CLOCK_GATING_CTRL));
1029
1030         return 0;
1031 }
1032 late_initcall(kirkwood_clock_gate);