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/kexec.h>
  25 #include <asm/mach/map.h>
  26 #include <asm/mach/time.h>
  27 #include <mach/kirkwood.h>
  28 #include <mach/bridge-regs.h>
  29 #include <plat/audio.h>
  30 #include <plat/cache-feroceon-l2.h>
  31 #include <plat/ehci-orion.h>
  32 #include <plat/mvsdio.h>
  33 #include <plat/mv_xor.h>
  34 #include <plat/orion_nand.h>
  35 #include <plat/orion_wdt.h>
  36 #include <plat/time.h>
  37 #include "common.h"
  38
  39 /*****************************************************************************
  40  * I/O Address Mapping
  41  ****************************************************************************/
  42 static struct map_desc kirkwood_io_desc[] __initdata = {
  43         {
  44                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  45                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  46                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  47                 .type           = MT_DEVICE,
  48         }, {
  49                 .virtual        = KIRKWOOD_PCIE1_IO_VIRT_BASE,
  50                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE),
  51                 .length         = KIRKWOOD_PCIE1_IO_SIZE,
  52                 .type           = MT_DEVICE,
  53         }, {
  54                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  55                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  56                 .length         = KIRKWOOD_REGS_SIZE,
  57                 .type           = MT_DEVICE,
  58         },
  59 };
  60
  61 void __init kirkwood_map_io(void)
  62 {
  63         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  64 }
  65
  66 /*
  67  * Default clock control bits.  Any bit _not_ set in this variable
  68  * will be cleared from the hardware after platform devices have been
  69  * registered.  Some reserved bits must be set to 1.
  70  */
  71 unsigned int kirkwood_clk_ctrl = CGC_DUNIT | CGC_RESERVED;
  72
  73
  74 /*****************************************************************************
  75  * EHCI
  76  ****************************************************************************/
  77 static struct orion_ehci_data kirkwood_ehci_data = {
  78         .dram           = &kirkwood_mbus_dram_info,
  79         .phy_version    = EHCI_PHY_NA,
  80 };
  81
  82 static u64 ehci_dmamask = 0xffffffffUL;
  83
  84
  85 /*****************************************************************************
  86  * EHCI0
  87  ****************************************************************************/
  88 static struct resource kirkwood_ehci_resources[] = {
  89         {
  90                 .start  = USB_PHYS_BASE,
  91                 .end    = USB_PHYS_BASE + 0x0fff,
  92                 .flags  = IORESOURCE_MEM,
  93         }, {
  94                 .start  = IRQ_KIRKWOOD_USB,
  95                 .end    = IRQ_KIRKWOOD_USB,
  96                 .flags  = IORESOURCE_IRQ,
  97         },
  98 };
  99
 100 static struct platform_device kirkwood_ehci = {
 101         .name           = "orion-ehci",
 102         .id             = 0,
 103         .dev            = {
 104                 .dma_mask               = &ehci_dmamask,
 105                 .coherent_dma_mask      = 0xffffffff,
 106                 .platform_data          = &kirkwood_ehci_data,
 107         },
 108         .resource       = kirkwood_ehci_resources,
 109         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
 110 };
 111
 112 void __init kirkwood_ehci_init(void)
 113 {
 114         kirkwood_clk_ctrl |= CGC_USB0;
 115         platform_device_register(&kirkwood_ehci);
 116 }
 117
 118
 119 /*****************************************************************************
 120  * GE00
 121  ****************************************************************************/
 122 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 123         .dram           = &kirkwood_mbus_dram_info,
 124 };
 125
 126 static struct resource kirkwood_ge00_shared_resources[] = {
 127         {
 128                 .name   = "ge00 base",
 129                 .start  = GE00_PHYS_BASE + 0x2000,
 130                 .end    = GE00_PHYS_BASE + 0x3fff,
 131                 .flags  = IORESOURCE_MEM,
 132         }, {
 133                 .name   = "ge00 err irq",
 134                 .start  = IRQ_KIRKWOOD_GE00_ERR,
 135                 .end    = IRQ_KIRKWOOD_GE00_ERR,
 136                 .flags  = IORESOURCE_IRQ,
 137         },
 138 };
 139
 140 static struct platform_device kirkwood_ge00_shared = {
 141         .name           = MV643XX_ETH_SHARED_NAME,
 142         .id             = 0,
 143         .dev            = {
 144                 .platform_data  = &kirkwood_ge00_shared_data,
 145         },
 146         .num_resources  = ARRAY_SIZE(kirkwood_ge00_shared_resources),
 147         .resource       = kirkwood_ge00_shared_resources,
 148 };
 149
 150 static struct resource kirkwood_ge00_resources[] = {
 151         {
 152                 .name   = "ge00 irq",
 153                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 154                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 155                 .flags  = IORESOURCE_IRQ,
 156         },
 157 };
 158
 159 static struct platform_device kirkwood_ge00 = {
 160         .name           = MV643XX_ETH_NAME,
 161         .id             = 0,
 162         .num_resources  = 1,
 163         .resource       = kirkwood_ge00_resources,
 164         .dev            = {
 165                 .coherent_dma_mask      = 0xffffffff,
 166         },
 167 };
 168
 169 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 170 {
 171         kirkwood_clk_ctrl |= CGC_GE0;
 172         eth_data->shared = &kirkwood_ge00_shared;
 173         kirkwood_ge00.dev.platform_data = eth_data;
 174
 175         platform_device_register(&kirkwood_ge00_shared);
 176         platform_device_register(&kirkwood_ge00);
 177 }
 178
 179
 180 /*****************************************************************************
 181  * GE01
 182  ****************************************************************************/
 183 struct mv643xx_eth_shared_platform_data kirkwood_ge01_shared_data = {
 184         .dram           = &kirkwood_mbus_dram_info,
 185         .shared_smi     = &kirkwood_ge00_shared,
 186 };
 187
 188 static struct resource kirkwood_ge01_shared_resources[] = {
 189         {
 190                 .name   = "ge01 base",
 191                 .start  = GE01_PHYS_BASE + 0x2000,
 192                 .end    = GE01_PHYS_BASE + 0x3fff,
 193                 .flags  = IORESOURCE_MEM,
 194         }, {
 195                 .name   = "ge01 err irq",
 196                 .start  = IRQ_KIRKWOOD_GE01_ERR,
 197                 .end    = IRQ_KIRKWOOD_GE01_ERR,
 198                 .flags  = IORESOURCE_IRQ,
 199         },
 200 };
 201
 202 static struct platform_device kirkwood_ge01_shared = {
 203         .name           = MV643XX_ETH_SHARED_NAME,
 204         .id             = 1,
 205         .dev            = {
 206                 .platform_data  = &kirkwood_ge01_shared_data,
 207         },
 208         .num_resources  = ARRAY_SIZE(kirkwood_ge01_shared_resources),
 209         .resource       = kirkwood_ge01_shared_resources,
 210 };
 211
 212 static struct resource kirkwood_ge01_resources[] = {
 213         {
 214                 .name   = "ge01 irq",
 215                 .start  = IRQ_KIRKWOOD_GE01_SUM,
 216                 .end    = IRQ_KIRKWOOD_GE01_SUM,
 217                 .flags  = IORESOURCE_IRQ,
 218         },
 219 };
 220
 221 static struct platform_device kirkwood_ge01 = {
 222         .name           = MV643XX_ETH_NAME,
 223         .id             = 1,
 224         .num_resources  = 1,
 225         .resource       = kirkwood_ge01_resources,
 226         .dev            = {
 227                 .coherent_dma_mask      = 0xffffffff,
 228         },
 229 };
 230
 231 void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 232 {
 233         kirkwood_clk_ctrl |= CGC_GE1;
 234         eth_data->shared = &kirkwood_ge01_shared;
 235         kirkwood_ge01.dev.platform_data = eth_data;
 236
 237         platform_device_register(&kirkwood_ge01_shared);
 238         platform_device_register(&kirkwood_ge01);
 239 }
 240
 241
 242 /*****************************************************************************
 243  * Ethernet switch
 244  ****************************************************************************/
 245 static struct resource kirkwood_switch_resources[] = {
 246         {
 247                 .start  = 0,
 248                 .end    = 0,
 249                 .flags  = IORESOURCE_IRQ,
 250         },
 251 };
 252
 253 static struct platform_device kirkwood_switch_device = {
 254         .name           = "dsa",
 255         .id             = 0,
 256         .num_resources  = 0,
 257         .resource       = kirkwood_switch_resources,
 258 };
 259
 260 void __init kirkwood_ge00_switch_init(struct dsa_platform_data *d, int irq)
 261 {
 262         int i;
 263
 264         if (irq != NO_IRQ) {
 265                 kirkwood_switch_resources[0].start = irq;
 266                 kirkwood_switch_resources[0].end = irq;
 267                 kirkwood_switch_device.num_resources = 1;
 268         }
 269
 270         d->netdev = &kirkwood_ge00.dev;
 271         for (i = 0; i < d->nr_chips; i++)
 272                 d->chip[i].mii_bus = &kirkwood_ge00_shared.dev;
 273         kirkwood_switch_device.dev.platform_data = d;
 274
 275         platform_device_register(&kirkwood_switch_device);
 276 }
 277
 278
 279 /*****************************************************************************
 280  * NAND flash
 281  ****************************************************************************/
 282 static struct resource kirkwood_nand_resource = {
 283         .flags          = IORESOURCE_MEM,
 284         .start          = KIRKWOOD_NAND_MEM_PHYS_BASE,
 285         .end            = KIRKWOOD_NAND_MEM_PHYS_BASE +
 286                                 KIRKWOOD_NAND_MEM_SIZE - 1,
 287 };
 288
 289 static struct orion_nand_data kirkwood_nand_data = {
 290         .cle            = 0,
 291         .ale            = 1,
 292         .width          = 8,
 293 };
 294
 295 static struct platform_device kirkwood_nand_flash = {
 296         .name           = "orion_nand",
 297         .id             = -1,
 298         .dev            = {
 299                 .platform_data  = &kirkwood_nand_data,
 300         },
 301         .resource       = &kirkwood_nand_resource,
 302         .num_resources  = 1,
 303 };
 304
 305 void __init kirkwood_nand_init(struct mtd_partition *parts, int nr_parts,
 306                                int chip_delay)
 307 {
 308         kirkwood_clk_ctrl |= CGC_RUNIT;
 309         kirkwood_nand_data.parts = parts;
 310         kirkwood_nand_data.nr_parts = nr_parts;
 311         kirkwood_nand_data.chip_delay = chip_delay;
 312         platform_device_register(&kirkwood_nand_flash);
 313 }
 314
 315 void __init kirkwood_nand_init_rnb(struct mtd_partition *parts, int nr_parts,
 316                                    int (*dev_ready)(struct mtd_info *))
 317 {
 318         kirkwood_clk_ctrl |= CGC_RUNIT;
 319         kirkwood_nand_data.parts = parts;
 320         kirkwood_nand_data.nr_parts = nr_parts;
 321         kirkwood_nand_data.dev_ready = dev_ready;
 322         platform_device_register(&kirkwood_nand_flash);
 323 }
 324
 325 /*****************************************************************************
 326  * SoC RTC
 327  ****************************************************************************/
 328 static struct resource kirkwood_rtc_resource = {
 329         .start  = RTC_PHYS_BASE,
 330         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 331         .flags  = IORESOURCE_MEM,
 332 };
 333
 334 static void __init kirkwood_rtc_init(void)
 335 {
 336         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 337 }
 338
 339
 340 /*****************************************************************************
 341  * SATA
 342  ****************************************************************************/
 343 static struct resource kirkwood_sata_resources[] = {
 344         {
 345                 .name   = "sata base",
 346                 .start  = SATA_PHYS_BASE,
 347                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 348                 .flags  = IORESOURCE_MEM,
 349         }, {
 350                 .name   = "sata irq",
 351                 .start  = IRQ_KIRKWOOD_SATA,
 352                 .end    = IRQ_KIRKWOOD_SATA,
 353                 .flags  = IORESOURCE_IRQ,
 354         },
 355 };
 356
 357 static struct platform_device kirkwood_sata = {
 358         .name           = "sata_mv",
 359         .id             = 0,
 360         .dev            = {
 361                 .coherent_dma_mask      = 0xffffffff,
 362         },
 363         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 364         .resource       = kirkwood_sata_resources,
 365 };
 366
 367 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 368 {
 369         kirkwood_clk_ctrl |= CGC_SATA0;
 370         if (sata_data->n_ports > 1)
 371                 kirkwood_clk_ctrl |= CGC_SATA1;
 372         sata_data->dram = &kirkwood_mbus_dram_info;
 373         kirkwood_sata.dev.platform_data = sata_data;
 374         platform_device_register(&kirkwood_sata);
 375 }
 376
 377
 378 /*****************************************************************************
 379  * SD/SDIO/MMC
 380  ****************************************************************************/
 381 static struct resource mvsdio_resources[] = {
 382         [0] = {
 383                 .start  = SDIO_PHYS_BASE,
 384                 .end    = SDIO_PHYS_BASE + SZ_1K - 1,
 385                 .flags  = IORESOURCE_MEM,
 386         },
 387         [1] = {
 388                 .start  = IRQ_KIRKWOOD_SDIO,
 389                 .end    = IRQ_KIRKWOOD_SDIO,
 390                 .flags  = IORESOURCE_IRQ,
 391         },
 392 };
 393
 394 static u64 mvsdio_dmamask = 0xffffffffUL;
 395
 396 static struct platform_device kirkwood_sdio = {
 397         .name           = "mvsdio",
 398         .id             = -1,
 399         .dev            = {
 400                 .dma_mask = &mvsdio_dmamask,
 401                 .coherent_dma_mask = 0xffffffff,
 402         },
 403         .num_resources  = ARRAY_SIZE(mvsdio_resources),
 404         .resource       = mvsdio_resources,
 405 };
 406
 407 void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 408 {
 409         u32 dev, rev;
 410
 411         kirkwood_pcie_id(&dev, &rev);
 412         if (rev == 0 && dev != MV88F6282_DEV_ID) /* catch all Kirkwood Z0's */
 413                 mvsdio_data->clock = 100000000;
 414         else
 415                 mvsdio_data->clock = 200000000;
 416         mvsdio_data->dram = &kirkwood_mbus_dram_info;
 417         kirkwood_clk_ctrl |= CGC_SDIO;
 418         kirkwood_sdio.dev.platform_data = mvsdio_data;
 419         platform_device_register(&kirkwood_sdio);
 420 }
 421
 422
 423 /*****************************************************************************
 424  * SPI
 425  ****************************************************************************/
 426 static struct orion_spi_info kirkwood_spi_plat_data = {
 427 };
 428
 429 static struct resource kirkwood_spi_resources[] = {
 430         {
 431                 .start  = SPI_PHYS_BASE,
 432                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 433                 .flags  = IORESOURCE_MEM,
 434         },
 435 };
 436
 437 static struct platform_device kirkwood_spi = {
 438         .name           = "orion_spi",
 439         .id             = 0,
 440         .resource       = kirkwood_spi_resources,
 441         .dev            = {
 442                 .platform_data  = &kirkwood_spi_plat_data,
 443         },
 444         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 445 };
 446
 447 void __init kirkwood_spi_init()
 448 {
 449         kirkwood_clk_ctrl |= CGC_RUNIT;
 450         platform_device_register(&kirkwood_spi);
 451 }
 452
 453
 454 /*****************************************************************************
 455  * I2C
 456  ****************************************************************************/
 457 static struct mv64xxx_i2c_pdata kirkwood_i2c_pdata = {
 458         .freq_m         = 8, /* assumes 166 MHz TCLK */
 459         .freq_n         = 3,
 460         .timeout        = 1000, /* Default timeout of 1 second */
 461 };
 462
 463 static struct resource kirkwood_i2c_resources[] = {
 464         {
 465                 .start  = I2C_PHYS_BASE,
 466                 .end    = I2C_PHYS_BASE + 0x1f,
 467                 .flags  = IORESOURCE_MEM,
 468         }, {
 469                 .start  = IRQ_KIRKWOOD_TWSI,
 470                 .end    = IRQ_KIRKWOOD_TWSI,
 471                 .flags  = IORESOURCE_IRQ,
 472         },
 473 };
 474
 475 static struct platform_device kirkwood_i2c = {
 476         .name           = MV64XXX_I2C_CTLR_NAME,
 477         .id             = 0,
 478         .num_resources  = ARRAY_SIZE(kirkwood_i2c_resources),
 479         .resource       = kirkwood_i2c_resources,
 480         .dev            = {
 481                 .platform_data  = &kirkwood_i2c_pdata,
 482         },
 483 };
 484
 485 void __init kirkwood_i2c_init(void)
 486 {
 487         platform_device_register(&kirkwood_i2c);
 488 }
 489
 490
 491 /*****************************************************************************
 492  * UART0
 493  ****************************************************************************/
 494 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 495         {
 496                 .mapbase        = UART0_PHYS_BASE,
 497                 .membase        = (char *)UART0_VIRT_BASE,
 498                 .irq            = IRQ_KIRKWOOD_UART_0,
 499                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 500                 .iotype         = UPIO_MEM,
 501                 .regshift       = 2,
 502                 .uartclk        = 0,
 503         }, {
 504         },
 505 };
 506
 507 static struct resource kirkwood_uart0_resources[] = {
 508         {
 509                 .start          = UART0_PHYS_BASE,
 510                 .end            = UART0_PHYS_BASE + 0xff,
 511                 .flags          = IORESOURCE_MEM,
 512         }, {
 513                 .start          = IRQ_KIRKWOOD_UART_0,
 514                 .end            = IRQ_KIRKWOOD_UART_0,
 515                 .flags          = IORESOURCE_IRQ,
 516         },
 517 };
 518
 519 static struct platform_device kirkwood_uart0 = {
 520         .name                   = "serial8250",
 521         .id                     = 0,
 522         .dev                    = {
 523                 .platform_data  = kirkwood_uart0_data,
 524         },
 525         .resource               = kirkwood_uart0_resources,
 526         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 527 };
 528
 529 void __init kirkwood_uart0_init(void)
 530 {
 531         platform_device_register(&kirkwood_uart0);
 532 }
 533
 534
 535 /*****************************************************************************
 536  * UART1
 537  ****************************************************************************/
 538 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 539         {
 540                 .mapbase        = UART1_PHYS_BASE,
 541                 .membase        = (char *)UART1_VIRT_BASE,
 542                 .irq            = IRQ_KIRKWOOD_UART_1,
 543                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 544                 .iotype         = UPIO_MEM,
 545                 .regshift       = 2,
 546                 .uartclk        = 0,
 547         }, {
 548         },
 549 };
 550
 551 static struct resource kirkwood_uart1_resources[] = {
 552         {
 553                 .start          = UART1_PHYS_BASE,
 554                 .end            = UART1_PHYS_BASE + 0xff,
 555                 .flags          = IORESOURCE_MEM,
 556         }, {
 557                 .start          = IRQ_KIRKWOOD_UART_1,
 558                 .end            = IRQ_KIRKWOOD_UART_1,
 559                 .flags          = IORESOURCE_IRQ,
 560         },
 561 };
 562
 563 static struct platform_device kirkwood_uart1 = {
 564         .name                   = "serial8250",
 565         .id                     = 1,
 566         .dev                    = {
 567                 .platform_data  = kirkwood_uart1_data,
 568         },
 569         .resource               = kirkwood_uart1_resources,
 570         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 571 };
 572
 573 void __init kirkwood_uart1_init(void)
 574 {
 575         platform_device_register(&kirkwood_uart1);
 576 }
 577
 578
 579 /*****************************************************************************
 580  * Cryptographic Engines and Security Accelerator (CESA)
 581  ****************************************************************************/
 582
 583 static struct resource kirkwood_crypto_res[] = {
 584         {
 585                 .name   = "regs",
 586                 .start  = CRYPTO_PHYS_BASE,
 587                 .end    = CRYPTO_PHYS_BASE + 0xffff,
 588                 .flags  = IORESOURCE_MEM,
 589         }, {
 590                 .name   = "sram",
 591                 .start  = KIRKWOOD_SRAM_PHYS_BASE,
 592                 .end    = KIRKWOOD_SRAM_PHYS_BASE + KIRKWOOD_SRAM_SIZE - 1,
 593                 .flags  = IORESOURCE_MEM,
 594         }, {
 595                 .name   = "crypto interrupt",
 596                 .start  = IRQ_KIRKWOOD_CRYPTO,
 597                 .end    = IRQ_KIRKWOOD_CRYPTO,
 598                 .flags  = IORESOURCE_IRQ,
 599         },
 600 };
 601
 602 static struct platform_device kirkwood_crypto_device = {
 603         .name           = "mv_crypto",
 604         .id             = -1,
 605         .num_resources  = ARRAY_SIZE(kirkwood_crypto_res),
 606         .resource       = kirkwood_crypto_res,
 607 };
 608
 609 void __init kirkwood_crypto_init(void)
 610 {
 611         kirkwood_clk_ctrl |= CGC_CRYPTO;
 612         platform_device_register(&kirkwood_crypto_device);
 613 }
 614
 615
 616 /*****************************************************************************
 617  * XOR
 618  ****************************************************************************/
 619 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 620         .dram           = &kirkwood_mbus_dram_info,
 621 };
 622
 623 static u64 kirkwood_xor_dmamask = DMA_BIT_MASK(32);
 624
 625
 626 /*****************************************************************************
 627  * XOR0
 628  ****************************************************************************/
 629 static struct resource kirkwood_xor0_shared_resources[] = {
 630         {
 631                 .name   = "xor 0 low",
 632                 .start  = XOR0_PHYS_BASE,
 633                 .end    = XOR0_PHYS_BASE + 0xff,
 634                 .flags  = IORESOURCE_MEM,
 635         }, {
 636                 .name   = "xor 0 high",
 637                 .start  = XOR0_HIGH_PHYS_BASE,
 638                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 639                 .flags  = IORESOURCE_MEM,
 640         },
 641 };
 642
 643 static struct platform_device kirkwood_xor0_shared = {
 644         .name           = MV_XOR_SHARED_NAME,
 645         .id             = 0,
 646         .dev            = {
 647                 .platform_data = &kirkwood_xor_shared_data,
 648         },
 649         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 650         .resource       = kirkwood_xor0_shared_resources,
 651 };
 652
 653 static struct resource kirkwood_xor00_resources[] = {
 654         [0] = {
 655                 .start  = IRQ_KIRKWOOD_XOR_00,
 656                 .end    = IRQ_KIRKWOOD_XOR_00,
 657                 .flags  = IORESOURCE_IRQ,
 658         },
 659 };
 660
 661 static struct mv_xor_platform_data kirkwood_xor00_data = {
 662         .shared         = &kirkwood_xor0_shared,
 663         .hw_id          = 0,
 664         .pool_size      = PAGE_SIZE,
 665 };
 666
 667 static struct platform_device kirkwood_xor00_channel = {
 668         .name           = MV_XOR_NAME,
 669         .id             = 0,
 670         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 671         .resource       = kirkwood_xor00_resources,
 672         .dev            = {
 673                 .dma_mask               = &kirkwood_xor_dmamask,
 674                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 675                 .platform_data          = &kirkwood_xor00_data,
 676         },
 677 };
 678
 679 static struct resource kirkwood_xor01_resources[] = {
 680         [0] = {
 681                 .start  = IRQ_KIRKWOOD_XOR_01,
 682                 .end    = IRQ_KIRKWOOD_XOR_01,
 683                 .flags  = IORESOURCE_IRQ,
 684         },
 685 };
 686
 687 static struct mv_xor_platform_data kirkwood_xor01_data = {
 688         .shared         = &kirkwood_xor0_shared,
 689         .hw_id          = 1,
 690         .pool_size      = PAGE_SIZE,
 691 };
 692
 693 static struct platform_device kirkwood_xor01_channel = {
 694         .name           = MV_XOR_NAME,
 695         .id             = 1,
 696         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 697         .resource       = kirkwood_xor01_resources,
 698         .dev            = {
 699                 .dma_mask               = &kirkwood_xor_dmamask,
 700                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 701                 .platform_data          = &kirkwood_xor01_data,
 702         },
 703 };
 704
 705 static void __init kirkwood_xor0_init(void)
 706 {
 707         kirkwood_clk_ctrl |= CGC_XOR0;
 708         platform_device_register(&kirkwood_xor0_shared);
 709
 710         /*
 711          * two engines can't do memset simultaneously, this limitation
 712          * satisfied by removing memset support from one of the engines.
 713          */
 714         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 715         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 716         platform_device_register(&kirkwood_xor00_channel);
 717
 718         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 719         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 720         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 721         platform_device_register(&kirkwood_xor01_channel);
 722 }
 723
 724
 725 /*****************************************************************************
 726  * XOR1
 727  ****************************************************************************/
 728 static struct resource kirkwood_xor1_shared_resources[] = {
 729         {
 730                 .name   = "xor 1 low",
 731                 .start  = XOR1_PHYS_BASE,
 732                 .end    = XOR1_PHYS_BASE + 0xff,
 733                 .flags  = IORESOURCE_MEM,
 734         }, {
 735                 .name   = "xor 1 high",
 736                 .start  = XOR1_HIGH_PHYS_BASE,
 737                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 738                 .flags  = IORESOURCE_MEM,
 739         },
 740 };
 741
 742 static struct platform_device kirkwood_xor1_shared = {
 743         .name           = MV_XOR_SHARED_NAME,
 744         .id             = 1,
 745         .dev            = {
 746                 .platform_data = &kirkwood_xor_shared_data,
 747         },
 748         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 749         .resource       = kirkwood_xor1_shared_resources,
 750 };
 751
 752 static struct resource kirkwood_xor10_resources[] = {
 753         [0] = {
 754                 .start  = IRQ_KIRKWOOD_XOR_10,
 755                 .end    = IRQ_KIRKWOOD_XOR_10,
 756                 .flags  = IORESOURCE_IRQ,
 757         },
 758 };
 759
 760 static struct mv_xor_platform_data kirkwood_xor10_data = {
 761         .shared         = &kirkwood_xor1_shared,
 762         .hw_id          = 0,
 763         .pool_size      = PAGE_SIZE,
 764 };
 765
 766 static struct platform_device kirkwood_xor10_channel = {
 767         .name           = MV_XOR_NAME,
 768         .id             = 2,
 769         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 770         .resource       = kirkwood_xor10_resources,
 771         .dev            = {
 772                 .dma_mask               = &kirkwood_xor_dmamask,
 773                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 774                 .platform_data          = &kirkwood_xor10_data,
 775         },
 776 };
 777
 778 static struct resource kirkwood_xor11_resources[] = {
 779         [0] = {
 780                 .start  = IRQ_KIRKWOOD_XOR_11,
 781                 .end    = IRQ_KIRKWOOD_XOR_11,
 782                 .flags  = IORESOURCE_IRQ,
 783         },
 784 };
 785
 786 static struct mv_xor_platform_data kirkwood_xor11_data = {
 787         .shared         = &kirkwood_xor1_shared,
 788         .hw_id          = 1,
 789         .pool_size      = PAGE_SIZE,
 790 };
 791
 792 static struct platform_device kirkwood_xor11_channel = {
 793         .name           = MV_XOR_NAME,
 794         .id             = 3,
 795         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 796         .resource       = kirkwood_xor11_resources,
 797         .dev            = {
 798                 .dma_mask               = &kirkwood_xor_dmamask,
 799                 .coherent_dma_mask      = DMA_BIT_MASK(64),
 800                 .platform_data          = &kirkwood_xor11_data,
 801         },
 802 };
 803
 804 static void __init kirkwood_xor1_init(void)
 805 {
 806         kirkwood_clk_ctrl |= CGC_XOR1;
 807         platform_device_register(&kirkwood_xor1_shared);
 808
 809         /*
 810          * two engines can't do memset simultaneously, this limitation
 811          * satisfied by removing memset support from one of the engines.
 812          */
 813         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 814         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 815         platform_device_register(&kirkwood_xor10_channel);
 816
 817         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 818         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 819         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 820         platform_device_register(&kirkwood_xor11_channel);
 821 }
 822
 823
 824 /*****************************************************************************
 825  * Watchdog
 826  ****************************************************************************/
 827 static struct orion_wdt_platform_data kirkwood_wdt_data = {
 828         .tclk           = 0,
 829 };
 830
 831 static struct platform_device kirkwood_wdt_device = {
 832         .name           = "orion_wdt",
 833         .id             = -1,
 834         .dev            = {
 835                 .platform_data  = &kirkwood_wdt_data,
 836         },
 837         .num_resources  = 0,
 838 };
 839
 840 static void __init kirkwood_wdt_init(void)
 841 {
 842         kirkwood_wdt_data.tclk = kirkwood_tclk;
 843         platform_device_register(&kirkwood_wdt_device);
 844 }
 845
 846
 847 /*****************************************************************************
 848  * Time handling
 849  ****************************************************************************/
 850 void __init kirkwood_init_early(void)
 851 {
 852         orion_time_set_base(TIMER_VIRT_BASE);
 853 }
 854
 855 int kirkwood_tclk;
 856
 857 static int __init kirkwood_find_tclk(void)
 858 {
 859         u32 dev, rev;
 860
 861         kirkwood_pcie_id(&dev, &rev);
 862
 863         if (dev == MV88F6281_DEV_ID || dev == MV88F6282_DEV_ID)
 864                 if (((readl(SAMPLE_AT_RESET) >> 21) & 1) == 0)
 865                         return 200000000;
 866
 867         return 166666667;
 868 }
 869
 870 static void __init kirkwood_timer_init(void)
 871 {
 872         kirkwood_tclk = kirkwood_find_tclk();
 873
 874         orion_time_init(BRIDGE_VIRT_BASE, BRIDGE_INT_TIMER1_CLR,
 875                         IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 876 }
 877
 878 struct sys_timer kirkwood_timer = {
 879         .init = kirkwood_timer_init,
 880 };
 881
 882 /*****************************************************************************
 883  * Audio
 884  ****************************************************************************/
 885 static struct resource kirkwood_i2s_resources[] = {
 886         [0] = {
 887                 .start  = AUDIO_PHYS_BASE,
 888                 .end    = AUDIO_PHYS_BASE + SZ_16K - 1,
 889                 .flags  = IORESOURCE_MEM,
 890         },
 891         [1] = {
 892                 .start  = IRQ_KIRKWOOD_I2S,
 893                 .end    = IRQ_KIRKWOOD_I2S,
 894                 .flags  = IORESOURCE_IRQ,
 895         },
 896 };
 897
 898 static struct kirkwood_asoc_platform_data kirkwood_i2s_data = {
 899         .dram        = &kirkwood_mbus_dram_info,
 900         .burst       = 128,
 901 };
 902
 903 static struct platform_device kirkwood_i2s_device = {
 904         .name           = "kirkwood-i2s",
 905         .id             = -1,
 906         .num_resources  = ARRAY_SIZE(kirkwood_i2s_resources),
 907         .resource       = kirkwood_i2s_resources,
 908         .dev            = {
 909                 .platform_data  = &kirkwood_i2s_data,
 910         },
 911 };
 912
 913 static struct platform_device kirkwood_pcm_device = {
 914         .name           = "kirkwood-pcm-audio",
 915         .id             = -1,
 916 };
 917
 918 void __init kirkwood_audio_init(void)
 919 {
 920         kirkwood_clk_ctrl |= CGC_AUDIO;
 921         platform_device_register(&kirkwood_i2s_device);
 922         platform_device_register(&kirkwood_pcm_device);
 923 }
 924
 925 /*****************************************************************************
 926  * General
 927  ****************************************************************************/
 928 /*
 929  * Identify device ID and revision.
 930  */
 931 static char * __init kirkwood_id(void)
 932 {
 933         u32 dev, rev;
 934
 935         kirkwood_pcie_id(&dev, &rev);
 936
 937         if (dev == MV88F6281_DEV_ID) {
 938                 if (rev == MV88F6281_REV_Z0)
 939                         return "MV88F6281-Z0";
 940                 else if (rev == MV88F6281_REV_A0)
 941                         return "MV88F6281-A0";
 942                 else if (rev == MV88F6281_REV_A1)
 943                         return "MV88F6281-A1";
 944                 else
 945                         return "MV88F6281-Rev-Unsupported";
 946         } else if (dev == MV88F6192_DEV_ID) {
 947                 if (rev == MV88F6192_REV_Z0)
 948                         return "MV88F6192-Z0";
 949                 else if (rev == MV88F6192_REV_A0)
 950                         return "MV88F6192-A0";
 951                 else if (rev == MV88F6192_REV_A1)
 952                         return "MV88F6192-A1";
 953                 else
 954                         return "MV88F6192-Rev-Unsupported";
 955         } else if (dev == MV88F6180_DEV_ID) {
 956                 if (rev == MV88F6180_REV_A0)
 957                         return "MV88F6180-Rev-A0";
 958                 else if (rev == MV88F6180_REV_A1)
 959                         return "MV88F6180-Rev-A1";
 960                 else
 961                         return "MV88F6180-Rev-Unsupported";
 962         } else if (dev == MV88F6282_DEV_ID) {
 963                 if (rev == MV88F6282_REV_A0)
 964                         return "MV88F6282-Rev-A0";
 965                 else
 966                         return "MV88F6282-Rev-Unsupported";
 967         } else {
 968                 return "Device-Unknown";
 969         }
 970 }
 971
 972 static void __init kirkwood_l2_init(void)
 973 {
 974 #ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
 975         writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
 976         feroceon_l2_init(1);
 977 #else
 978         writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
 979         feroceon_l2_init(0);
 980 #endif
 981 }
 982
 983 void __init kirkwood_init(void)
 984 {
 985         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 986                 kirkwood_id(), kirkwood_tclk);
 987         kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
 988         kirkwood_ge01_shared_data.t_clk = kirkwood_tclk;
 989         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
 990         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
 991         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
 992         kirkwood_i2s_data.tclk = kirkwood_tclk;
 993
 994         /*
 995          * Disable propagation of mbus errors to the CPU local bus,
 996          * as this causes mbus errors (which can occur for example
 997          * for PCI aborts) to throw CPU aborts, which we're not set
 998          * up to deal with.
 999          */
1000         writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
1001
1002         kirkwood_setup_cpu_mbus();
1003
1004 #ifdef CONFIG_CACHE_FEROCEON_L2
1005         kirkwood_l2_init();
1006 #endif
1007
1008         /* internal devices that every board has */
1009         kirkwood_rtc_init();
1010         kirkwood_wdt_init();
1011         kirkwood_xor0_init();
1012         kirkwood_xor1_init();
1013         kirkwood_crypto_init();
1014
1015 #ifdef CONFIG_KEXEC
1016         kexec_reinit = kirkwood_enable_pcie;
1017 #endif
1018 }
1019
1020 static int __init kirkwood_clock_gate(void)
1021 {
1022         unsigned int curr = readl(CLOCK_GATING_CTRL);
1023         u32 dev, rev;
1024
1025         kirkwood_pcie_id(&dev, &rev);
1026         printk(KERN_DEBUG "Gating clock of unused units\n");
1027         printk(KERN_DEBUG "before: 0x%08x\n", curr);
1028
1029         /* Make sure those units are accessible */
1030         writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0 | CGC_PEX1, CLOCK_GATING_CTRL);
1031
1032         /* For SATA: first shutdown the phy */
1033         if (!(kirkwood_clk_ctrl & CGC_SATA0)) {
1034                 /* Disable PLL and IVREF */
1035                 writel(readl(SATA0_PHY_MODE_2) & ~0xf, SATA0_PHY_MODE_2);
1036                 /* Disable PHY */
1037                 writel(readl(SATA0_IF_CTRL) | 0x200, SATA0_IF_CTRL);
1038         }
1039         if (!(kirkwood_clk_ctrl & CGC_SATA1)) {
1040                 /* Disable PLL and IVREF */
1041                 writel(readl(SATA1_PHY_MODE_2) & ~0xf, SATA1_PHY_MODE_2);
1042                 /* Disable PHY */
1043                 writel(readl(SATA1_IF_CTRL) | 0x200, SATA1_IF_CTRL);
1044         }
1045
1046         /* For PCIe: first shutdown the phy */
1047         if (!(kirkwood_clk_ctrl & CGC_PEX0)) {
1048                 writel(readl(PCIE_LINK_CTRL) | 0x10, PCIE_LINK_CTRL);
1049                 while (1)
1050                         if (readl(PCIE_STATUS) & 0x1)
1051                                 break;
1052                 writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL);
1053         }
1054
1055         /* For PCIe 1: first shutdown the phy */
1056         if (dev == MV88F6282_DEV_ID) {
1057                 if (!(kirkwood_clk_ctrl & CGC_PEX1)) {
1058                         writel(readl(PCIE1_LINK_CTRL) | 0x10, PCIE1_LINK_CTRL);
1059                         while (1)
1060                                 if (readl(PCIE1_STATUS) & 0x1)
1061                                         break;
1062                         writel(readl(PCIE1_LINK_CTRL) & ~0x10, PCIE1_LINK_CTRL);
1063                 }
1064         } else  /* keep this bit set for devices that don't have PCIe1 */
1065                 kirkwood_clk_ctrl |= CGC_PEX1;
1066
1067         /* Now gate clock the required units */
1068         writel(kirkwood_clk_ctrl, CLOCK_GATING_CTRL);
1069         printk(KERN_DEBUG " after: 0x%08x\n", readl(CLOCK_GATING_CTRL));
1070
1071         return 0;
1072 }
1073 late_initcall(kirkwood_clock_gate);