git.oblomov.eu Git - linux-2.6/blob - arch/arm/mach-mv78xx0/common.c

   1 /*
   2  * arch/arm/mach-mv78xx0/common.c
   3  *
   4  * Core functions for Marvell MV78xx0 SoCs
   5  *
   6  * This file is licensed under the terms of the GNU General Public
   7  * License version 2.  This program is licensed "as is" without any
   8  * warranty of any kind, whether express or implied.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/mbus.h>
  16 #include <linux/mv643xx_eth.h>
  17 #include <linux/ata_platform.h>
  18 #include <asm/mach/map.h>
  19 #include <asm/mach/time.h>
  20 #include <asm/arch/mv78xx0.h>
  21 #include <asm/plat-orion/cache-feroceon-l2.h>
  22 #include <asm/plat-orion/ehci-orion.h>
  23 #include <asm/plat-orion/orion_nand.h>
  24 #include <asm/plat-orion/time.h>
  25 #include "common.h"
  26
  27
  28 /*****************************************************************************
  29  * Common bits
  30  ****************************************************************************/
  31 int mv78xx0_core_index(void)
  32 {
  33         u32 extra;
  34
  35         /*
  36          * Read Extra Features register.
  37          */
  38         __asm__("mrc p15, 1, %0, c15, c1, 0" : "=r" (extra));
  39
  40         return !!(extra & 0x00004000);
  41 }
  42
  43 static int get_hclk(void)
  44 {
  45         int hclk;
  46
  47         /*
  48          * HCLK tick rate is configured by DEV_D[7:5] pins.
  49          */
  50         switch ((readl(SAMPLE_AT_RESET_LOW) >> 5) & 7) {
  51         case 0:
  52                 hclk = 166666667;
  53                 break;
  54         case 1:
  55                 hclk = 200000000;
  56                 break;
  57         case 2:
  58                 hclk = 266666667;
  59                 break;
  60         case 3:
  61                 hclk = 333333333;
  62                 break;
  63         case 4:
  64                 hclk = 400000000;
  65                 break;
  66         default:
  67                 panic("unknown HCLK PLL setting: %.8x\n",
  68                         readl(SAMPLE_AT_RESET_LOW));
  69         }
  70
  71         return hclk;
  72 }
  73
  74 static void get_pclk_l2clk(int hclk, int core_index, int *pclk, int *l2clk)
  75 {
  76         u32 cfg;
  77
  78         /*
  79          * Core #0 PCLK/L2CLK is configured by bits [13:8], core #1
  80          * PCLK/L2CLK by bits [19:14].
  81          */
  82         if (core_index == 0) {
  83                 cfg = (readl(SAMPLE_AT_RESET_LOW) >> 8) & 0x3f;
  84         } else {
  85                 cfg = (readl(SAMPLE_AT_RESET_LOW) >> 14) & 0x3f;
  86         }
  87
  88         /*
  89          * Bits [11:8] ([17:14] for core #1) configure the PCLK:HCLK
  90          * ratio (1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6).
  91          */
  92         *pclk = ((u64)hclk * (2 + (cfg & 0xf))) >> 1;
  93
  94         /*
  95          * Bits [13:12] ([19:18] for core #1) configure the PCLK:L2CLK
  96          * ratio (1, 2, 3).
  97          */
  98         *l2clk = *pclk / (((cfg >> 4) & 3) + 1);
  99 }
 100
 101 static int get_tclk(void)
 102 {
 103         int tclk;
 104
 105         /*
 106          * TCLK tick rate is configured by DEV_A[2:0] strap pins.
 107          */
 108         switch ((readl(SAMPLE_AT_RESET_HIGH) >> 6) & 7) {
 109         case 1:
 110                 tclk = 166666667;
 111                 break;
 112         case 3:
 113                 tclk = 200000000;
 114                 break;
 115         default:
 116                 panic("unknown TCLK PLL setting: %.8x\n",
 117                         readl(SAMPLE_AT_RESET_HIGH));
 118         }
 119
 120         return tclk;
 121 }
 122
 123
 124 /*****************************************************************************
 125  * I/O Address Mapping
 126  ****************************************************************************/
 127 static struct map_desc mv78xx0_io_desc[] __initdata = {
 128         {
 129                 .virtual        = MV78XX0_CORE_REGS_VIRT_BASE,
 130                 .pfn            = 0,
 131                 .length         = MV78XX0_CORE_REGS_SIZE,
 132                 .type           = MT_DEVICE,
 133         }, {
 134                 .virtual        = MV78XX0_PCIE_IO_VIRT_BASE(0),
 135                 .pfn            = __phys_to_pfn(MV78XX0_PCIE_IO_PHYS_BASE(0)),
 136                 .length         = MV78XX0_PCIE_IO_SIZE * 8,
 137                 .type           = MT_DEVICE,
 138         }, {
 139                 .virtual        = MV78XX0_REGS_VIRT_BASE,
 140                 .pfn            = __phys_to_pfn(MV78XX0_REGS_PHYS_BASE),
 141                 .length         = MV78XX0_REGS_SIZE,
 142                 .type           = MT_DEVICE,
 143         },
 144 };
 145
 146 void __init mv78xx0_map_io(void)
 147 {
 148         unsigned long phys;
 149
 150         /*
 151          * Map the right set of per-core registers depending on
 152          * which core we are running on.
 153          */
 154         if (mv78xx0_core_index() == 0) {
 155                 phys = MV78XX0_CORE0_REGS_PHYS_BASE;
 156         } else {
 157                 phys = MV78XX0_CORE1_REGS_PHYS_BASE;
 158         }
 159         mv78xx0_io_desc[0].pfn = __phys_to_pfn(phys);
 160
 161         iotable_init(mv78xx0_io_desc, ARRAY_SIZE(mv78xx0_io_desc));
 162 }
 163
 164
 165 /*****************************************************************************
 166  * EHCI
 167  ****************************************************************************/
 168 static struct orion_ehci_data mv78xx0_ehci_data = {
 169         .dram           = &mv78xx0_mbus_dram_info,
 170 };
 171
 172 static u64 ehci_dmamask = 0xffffffffUL;
 173
 174
 175 /*****************************************************************************
 176  * EHCI0
 177  ****************************************************************************/
 178 static struct resource mv78xx0_ehci0_resources[] = {
 179         {
 180                 .start  = USB0_PHYS_BASE,
 181                 .end    = USB0_PHYS_BASE + 0x0fff,
 182                 .flags  = IORESOURCE_MEM,
 183         }, {
 184                 .start  = IRQ_MV78XX0_USB_0,
 185                 .end    = IRQ_MV78XX0_USB_0,
 186                 .flags  = IORESOURCE_IRQ,
 187         },
 188 };
 189
 190 static struct platform_device mv78xx0_ehci0 = {
 191         .name           = "orion-ehci",
 192         .id             = 0,
 193         .dev            = {
 194                 .dma_mask               = &ehci_dmamask,
 195                 .coherent_dma_mask      = 0xffffffff,
 196                 .platform_data          = &mv78xx0_ehci_data,
 197         },
 198         .resource       = mv78xx0_ehci0_resources,
 199         .num_resources  = ARRAY_SIZE(mv78xx0_ehci0_resources),
 200 };
 201
 202 void __init mv78xx0_ehci0_init(void)
 203 {
 204         platform_device_register(&mv78xx0_ehci0);
 205 }
 206
 207
 208 /*****************************************************************************
 209  * EHCI1
 210  ****************************************************************************/
 211 static struct resource mv78xx0_ehci1_resources[] = {
 212         {
 213                 .start  = USB1_PHYS_BASE,
 214                 .end    = USB1_PHYS_BASE + 0x0fff,
 215                 .flags  = IORESOURCE_MEM,
 216         }, {
 217                 .start  = IRQ_MV78XX0_USB_1,
 218                 .end    = IRQ_MV78XX0_USB_1,
 219                 .flags  = IORESOURCE_IRQ,
 220         },
 221 };
 222
 223 static struct platform_device mv78xx0_ehci1 = {
 224         .name           = "orion-ehci",
 225         .id             = 1,
 226         .dev            = {
 227                 .dma_mask               = &ehci_dmamask,
 228                 .coherent_dma_mask      = 0xffffffff,
 229                 .platform_data          = &mv78xx0_ehci_data,
 230         },
 231         .resource       = mv78xx0_ehci1_resources,
 232         .num_resources  = ARRAY_SIZE(mv78xx0_ehci1_resources),
 233 };
 234
 235 void __init mv78xx0_ehci1_init(void)
 236 {
 237         platform_device_register(&mv78xx0_ehci1);
 238 }
 239
 240
 241 /*****************************************************************************
 242  * EHCI2
 243  ****************************************************************************/
 244 static struct resource mv78xx0_ehci2_resources[] = {
 245         {
 246                 .start  = USB2_PHYS_BASE,
 247                 .end    = USB2_PHYS_BASE + 0x0fff,
 248                 .flags  = IORESOURCE_MEM,
 249         }, {
 250                 .start  = IRQ_MV78XX0_USB_2,
 251                 .end    = IRQ_MV78XX0_USB_2,
 252                 .flags  = IORESOURCE_IRQ,
 253         },
 254 };
 255
 256 static struct platform_device mv78xx0_ehci2 = {
 257         .name           = "orion-ehci",
 258         .id             = 2,
 259         .dev            = {
 260                 .dma_mask               = &ehci_dmamask,
 261                 .coherent_dma_mask      = 0xffffffff,
 262                 .platform_data          = &mv78xx0_ehci_data,
 263         },
 264         .resource       = mv78xx0_ehci2_resources,
 265         .num_resources  = ARRAY_SIZE(mv78xx0_ehci2_resources),
 266 };
 267
 268 void __init mv78xx0_ehci2_init(void)
 269 {
 270         platform_device_register(&mv78xx0_ehci2);
 271 }
 272
 273
 274 /*****************************************************************************
 275  * GE00
 276  ****************************************************************************/
 277 struct mv643xx_eth_shared_platform_data mv78xx0_ge00_shared_data = {
 278         .t_clk          = 0,
 279         .dram           = &mv78xx0_mbus_dram_info,
 280 };
 281
 282 static struct resource mv78xx0_ge00_shared_resources[] = {
 283         {
 284                 .name   = "ge00 base",
 285                 .start  = GE00_PHYS_BASE + 0x2000,
 286                 .end    = GE00_PHYS_BASE + 0x3fff,
 287                 .flags  = IORESOURCE_MEM,
 288         },
 289 };
 290
 291 static struct platform_device mv78xx0_ge00_shared = {
 292         .name           = MV643XX_ETH_SHARED_NAME,
 293         .id             = 0,
 294         .dev            = {
 295                 .platform_data  = &mv78xx0_ge00_shared_data,
 296         },
 297         .num_resources  = 1,
 298         .resource       = mv78xx0_ge00_shared_resources,
 299 };
 300
 301 static struct resource mv78xx0_ge00_resources[] = {
 302         {
 303                 .name   = "ge00 irq",
 304                 .start  = IRQ_MV78XX0_GE00_SUM,
 305                 .end    = IRQ_MV78XX0_GE00_SUM,
 306                 .flags  = IORESOURCE_IRQ,
 307         },
 308 };
 309
 310 static struct platform_device mv78xx0_ge00 = {
 311         .name           = MV643XX_ETH_NAME,
 312         .id             = 0,
 313         .num_resources  = 1,
 314         .resource       = mv78xx0_ge00_resources,
 315 };
 316
 317 void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 318 {
 319         eth_data->shared = &mv78xx0_ge00_shared;
 320         mv78xx0_ge00.dev.platform_data = eth_data;
 321
 322         platform_device_register(&mv78xx0_ge00_shared);
 323         platform_device_register(&mv78xx0_ge00);
 324 }
 325
 326
 327 /*****************************************************************************
 328  * GE01
 329  ****************************************************************************/
 330 struct mv643xx_eth_shared_platform_data mv78xx0_ge01_shared_data = {
 331         .t_clk          = 0,
 332         .dram           = &mv78xx0_mbus_dram_info,
 333 };
 334
 335 static struct resource mv78xx0_ge01_shared_resources[] = {
 336         {
 337                 .name   = "ge01 base",
 338                 .start  = GE01_PHYS_BASE + 0x2000,
 339                 .end    = GE01_PHYS_BASE + 0x3fff,
 340                 .flags  = IORESOURCE_MEM,
 341         },
 342 };
 343
 344 static struct platform_device mv78xx0_ge01_shared = {
 345         .name           = MV643XX_ETH_SHARED_NAME,
 346         .id             = 1,
 347         .dev            = {
 348                 .platform_data  = &mv78xx0_ge01_shared_data,
 349         },
 350         .num_resources  = 1,
 351         .resource       = mv78xx0_ge01_shared_resources,
 352 };
 353
 354 static struct resource mv78xx0_ge01_resources[] = {
 355         {
 356                 .name   = "ge01 irq",
 357                 .start  = IRQ_MV78XX0_GE01_SUM,
 358                 .end    = IRQ_MV78XX0_GE01_SUM,
 359                 .flags  = IORESOURCE_IRQ,
 360         },
 361 };
 362
 363 static struct platform_device mv78xx0_ge01 = {
 364         .name           = MV643XX_ETH_NAME,
 365         .id             = 1,
 366         .num_resources  = 1,
 367         .resource       = mv78xx0_ge01_resources,
 368 };
 369
 370 void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 371 {
 372         eth_data->shared = &mv78xx0_ge01_shared;
 373         eth_data->shared_smi = &mv78xx0_ge00_shared;
 374         mv78xx0_ge01.dev.platform_data = eth_data;
 375
 376         platform_device_register(&mv78xx0_ge01_shared);
 377         platform_device_register(&mv78xx0_ge01);
 378 }
 379
 380
 381 /*****************************************************************************
 382  * GE10
 383  ****************************************************************************/
 384 struct mv643xx_eth_shared_platform_data mv78xx0_ge10_shared_data = {
 385         .t_clk          = 0,
 386         .dram           = &mv78xx0_mbus_dram_info,
 387 };
 388
 389 static struct resource mv78xx0_ge10_shared_resources[] = {
 390         {
 391                 .name   = "ge10 base",
 392                 .start  = GE10_PHYS_BASE + 0x2000,
 393                 .end    = GE10_PHYS_BASE + 0x3fff,
 394                 .flags  = IORESOURCE_MEM,
 395         },
 396 };
 397
 398 static struct platform_device mv78xx0_ge10_shared = {
 399         .name           = MV643XX_ETH_SHARED_NAME,
 400         .id             = 2,
 401         .dev            = {
 402                 .platform_data  = &mv78xx0_ge10_shared_data,
 403         },
 404         .num_resources  = 1,
 405         .resource       = mv78xx0_ge10_shared_resources,
 406 };
 407
 408 static struct resource mv78xx0_ge10_resources[] = {
 409         {
 410                 .name   = "ge10 irq",
 411                 .start  = IRQ_MV78XX0_GE10_SUM,
 412                 .end    = IRQ_MV78XX0_GE10_SUM,
 413                 .flags  = IORESOURCE_IRQ,
 414         },
 415 };
 416
 417 static struct platform_device mv78xx0_ge10 = {
 418         .name           = MV643XX_ETH_NAME,
 419         .id             = 2,
 420         .num_resources  = 1,
 421         .resource       = mv78xx0_ge10_resources,
 422 };
 423
 424 void __init mv78xx0_ge10_init(struct mv643xx_eth_platform_data *eth_data)
 425 {
 426         eth_data->shared = &mv78xx0_ge10_shared;
 427         eth_data->shared_smi = &mv78xx0_ge00_shared;
 428         mv78xx0_ge10.dev.platform_data = eth_data;
 429
 430         platform_device_register(&mv78xx0_ge10_shared);
 431         platform_device_register(&mv78xx0_ge10);
 432 }
 433
 434
 435 /*****************************************************************************
 436  * GE11
 437  ****************************************************************************/
 438 struct mv643xx_eth_shared_platform_data mv78xx0_ge11_shared_data = {
 439         .t_clk          = 0,
 440         .dram           = &mv78xx0_mbus_dram_info,
 441 };
 442
 443 static struct resource mv78xx0_ge11_shared_resources[] = {
 444         {
 445                 .name   = "ge11 base",
 446                 .start  = GE11_PHYS_BASE + 0x2000,
 447                 .end    = GE11_PHYS_BASE + 0x3fff,
 448                 .flags  = IORESOURCE_MEM,
 449         },
 450 };
 451
 452 static struct platform_device mv78xx0_ge11_shared = {
 453         .name           = MV643XX_ETH_SHARED_NAME,
 454         .id             = 3,
 455         .dev            = {
 456                 .platform_data  = &mv78xx0_ge11_shared_data,
 457         },
 458         .num_resources  = 1,
 459         .resource       = mv78xx0_ge11_shared_resources,
 460 };
 461
 462 static struct resource mv78xx0_ge11_resources[] = {
 463         {
 464                 .name   = "ge11 irq",
 465                 .start  = IRQ_MV78XX0_GE11_SUM,
 466                 .end    = IRQ_MV78XX0_GE11_SUM,
 467                 .flags  = IORESOURCE_IRQ,
 468         },
 469 };
 470
 471 static struct platform_device mv78xx0_ge11 = {
 472         .name           = MV643XX_ETH_NAME,
 473         .id             = 3,
 474         .num_resources  = 1,
 475         .resource       = mv78xx0_ge11_resources,
 476 };
 477
 478 void __init mv78xx0_ge11_init(struct mv643xx_eth_platform_data *eth_data)
 479 {
 480         eth_data->shared = &mv78xx0_ge11_shared;
 481         eth_data->shared_smi = &mv78xx0_ge00_shared;
 482         mv78xx0_ge11.dev.platform_data = eth_data;
 483
 484         platform_device_register(&mv78xx0_ge11_shared);
 485         platform_device_register(&mv78xx0_ge11);
 486 }
 487
 488
 489 /*****************************************************************************
 490  * SATA
 491  ****************************************************************************/
 492 static struct resource mv78xx0_sata_resources[] = {
 493         {
 494                 .name   = "sata base",
 495                 .start  = SATA_PHYS_BASE,
 496                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 497                 .flags  = IORESOURCE_MEM,
 498         }, {
 499                 .name   = "sata irq",
 500                 .start  = IRQ_MV78XX0_SATA,
 501                 .end    = IRQ_MV78XX0_SATA,
 502                 .flags  = IORESOURCE_IRQ,
 503         },
 504 };
 505
 506 static struct platform_device mv78xx0_sata = {
 507         .name           = "sata_mv",
 508         .id             = 0,
 509         .dev            = {
 510                 .coherent_dma_mask      = 0xffffffff,
 511         },
 512         .num_resources  = ARRAY_SIZE(mv78xx0_sata_resources),
 513         .resource       = mv78xx0_sata_resources,
 514 };
 515
 516 void __init mv78xx0_sata_init(struct mv_sata_platform_data *sata_data)
 517 {
 518         sata_data->dram = &mv78xx0_mbus_dram_info;
 519         mv78xx0_sata.dev.platform_data = sata_data;
 520         platform_device_register(&mv78xx0_sata);
 521 }
 522
 523
 524 /*****************************************************************************
 525  * UART0
 526  ****************************************************************************/
 527 static struct plat_serial8250_port mv78xx0_uart0_data[] = {
 528         {
 529                 .mapbase        = UART0_PHYS_BASE,
 530                 .membase        = (char *)UART0_VIRT_BASE,
 531                 .irq            = IRQ_MV78XX0_UART_0,
 532                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 533                 .iotype         = UPIO_MEM,
 534                 .regshift       = 2,
 535                 .uartclk        = 0,
 536         }, {
 537         },
 538 };
 539
 540 static struct resource mv78xx0_uart0_resources[] = {
 541         {
 542                 .start          = UART0_PHYS_BASE,
 543                 .end            = UART0_PHYS_BASE + 0xff,
 544                 .flags          = IORESOURCE_MEM,
 545         }, {
 546                 .start          = IRQ_MV78XX0_UART_0,
 547                 .end            = IRQ_MV78XX0_UART_0,
 548                 .flags          = IORESOURCE_IRQ,
 549         },
 550 };
 551
 552 static struct platform_device mv78xx0_uart0 = {
 553         .name                   = "serial8250",
 554         .id                     = 0,
 555         .dev                    = {
 556                 .platform_data  = mv78xx0_uart0_data,
 557         },
 558         .resource               = mv78xx0_uart0_resources,
 559         .num_resources          = ARRAY_SIZE(mv78xx0_uart0_resources),
 560 };
 561
 562 void __init mv78xx0_uart0_init(void)
 563 {
 564         platform_device_register(&mv78xx0_uart0);
 565 }
 566
 567
 568 /*****************************************************************************
 569  * UART1
 570  ****************************************************************************/
 571 static struct plat_serial8250_port mv78xx0_uart1_data[] = {
 572         {
 573                 .mapbase        = UART1_PHYS_BASE,
 574                 .membase        = (char *)UART1_VIRT_BASE,
 575                 .irq            = IRQ_MV78XX0_UART_1,
 576                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 577                 .iotype         = UPIO_MEM,
 578                 .regshift       = 2,
 579                 .uartclk        = 0,
 580         }, {
 581         },
 582 };
 583
 584 static struct resource mv78xx0_uart1_resources[] = {
 585         {
 586                 .start          = UART1_PHYS_BASE,
 587                 .end            = UART1_PHYS_BASE + 0xff,
 588                 .flags          = IORESOURCE_MEM,
 589         }, {
 590                 .start          = IRQ_MV78XX0_UART_1,
 591                 .end            = IRQ_MV78XX0_UART_1,
 592                 .flags          = IORESOURCE_IRQ,
 593         },
 594 };
 595
 596 static struct platform_device mv78xx0_uart1 = {
 597         .name                   = "serial8250",
 598         .id                     = 1,
 599         .dev                    = {
 600                 .platform_data  = mv78xx0_uart1_data,
 601         },
 602         .resource               = mv78xx0_uart1_resources,
 603         .num_resources          = ARRAY_SIZE(mv78xx0_uart1_resources),
 604 };
 605
 606 void __init mv78xx0_uart1_init(void)
 607 {
 608         platform_device_register(&mv78xx0_uart1);
 609 }
 610
 611
 612 /*****************************************************************************
 613  * UART2
 614  ****************************************************************************/
 615 static struct plat_serial8250_port mv78xx0_uart2_data[] = {
 616         {
 617                 .mapbase        = UART2_PHYS_BASE,
 618                 .membase        = (char *)UART2_VIRT_BASE,
 619                 .irq            = IRQ_MV78XX0_UART_2,
 620                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 621                 .iotype         = UPIO_MEM,
 622                 .regshift       = 2,
 623                 .uartclk        = 0,
 624         }, {
 625         },
 626 };
 627
 628 static struct resource mv78xx0_uart2_resources[] = {
 629         {
 630                 .start          = UART2_PHYS_BASE,
 631                 .end            = UART2_PHYS_BASE + 0xff,
 632                 .flags          = IORESOURCE_MEM,
 633         }, {
 634                 .start          = IRQ_MV78XX0_UART_2,
 635                 .end            = IRQ_MV78XX0_UART_2,
 636                 .flags          = IORESOURCE_IRQ,
 637         },
 638 };
 639
 640 static struct platform_device mv78xx0_uart2 = {
 641         .name                   = "serial8250",
 642         .id                     = 2,
 643         .dev                    = {
 644                 .platform_data  = mv78xx0_uart2_data,
 645         },
 646         .resource               = mv78xx0_uart2_resources,
 647         .num_resources          = ARRAY_SIZE(mv78xx0_uart2_resources),
 648 };
 649
 650 void __init mv78xx0_uart2_init(void)
 651 {
 652         platform_device_register(&mv78xx0_uart2);
 653 }
 654
 655
 656 /*****************************************************************************
 657  * UART3
 658  ****************************************************************************/
 659 static struct plat_serial8250_port mv78xx0_uart3_data[] = {
 660         {
 661                 .mapbase        = UART3_PHYS_BASE,
 662                 .membase        = (char *)UART3_VIRT_BASE,
 663                 .irq            = IRQ_MV78XX0_UART_3,
 664                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 665                 .iotype         = UPIO_MEM,
 666                 .regshift       = 2,
 667                 .uartclk        = 0,
 668         }, {
 669         },
 670 };
 671
 672 static struct resource mv78xx0_uart3_resources[] = {
 673         {
 674                 .start          = UART3_PHYS_BASE,
 675                 .end            = UART3_PHYS_BASE + 0xff,
 676                 .flags          = IORESOURCE_MEM,
 677         }, {
 678                 .start          = IRQ_MV78XX0_UART_3,
 679                 .end            = IRQ_MV78XX0_UART_3,
 680                 .flags          = IORESOURCE_IRQ,
 681         },
 682 };
 683
 684 static struct platform_device mv78xx0_uart3 = {
 685         .name                   = "serial8250",
 686         .id                     = 3,
 687         .dev                    = {
 688                 .platform_data  = mv78xx0_uart3_data,
 689         },
 690         .resource               = mv78xx0_uart3_resources,
 691         .num_resources          = ARRAY_SIZE(mv78xx0_uart3_resources),
 692 };
 693
 694 void __init mv78xx0_uart3_init(void)
 695 {
 696         platform_device_register(&mv78xx0_uart3);
 697 }
 698
 699
 700 /*****************************************************************************
 701  * Time handling
 702  ****************************************************************************/
 703 static void mv78xx0_timer_init(void)
 704 {
 705         orion_time_init(IRQ_MV78XX0_TIMER_1, get_tclk());
 706 }
 707
 708 struct sys_timer mv78xx0_timer = {
 709         .init = mv78xx0_timer_init,
 710 };
 711
 712
 713 /*****************************************************************************
 714  * General
 715  ****************************************************************************/
 716 static int __init is_l2_writethrough(void)
 717 {
 718         return !!(readl(CPU_CONTROL) & L2_WRITETHROUGH);
 719 }
 720
 721 void __init mv78xx0_init(void)
 722 {
 723         int core_index;
 724         int hclk;
 725         int pclk;
 726         int l2clk;
 727         int tclk;
 728
 729         core_index = mv78xx0_core_index();
 730         hclk = get_hclk();
 731         get_pclk_l2clk(hclk, core_index, &pclk, &l2clk);
 732         tclk = get_tclk();
 733
 734         printk(KERN_INFO "MV78xx0 core #%d, ", core_index);
 735         printk("PCLK = %dMHz, ", (pclk + 499999) / 1000000);
 736         printk("L2 = %dMHz, ", (l2clk + 499999) / 1000000);
 737         printk("HCLK = %dMHz, ", (hclk + 499999) / 1000000);
 738         printk("TCLK = %dMHz\n", (tclk + 499999) / 1000000);
 739
 740         mv78xx0_setup_cpu_mbus();
 741
 742 #ifdef CONFIG_CACHE_FEROCEON_L2
 743         feroceon_l2_init(is_l2_writethrough());
 744 #endif
 745
 746         mv78xx0_ge00_shared_data.t_clk = tclk;
 747         mv78xx0_ge01_shared_data.t_clk = tclk;
 748         mv78xx0_ge10_shared_data.t_clk = tclk;
 749         mv78xx0_ge11_shared_data.t_clk = tclk;
 750         mv78xx0_uart0_data[0].uartclk = tclk;
 751         mv78xx0_uart1_data[0].uartclk = tclk;
 752         mv78xx0_uart2_data[0].uartclk = tclk;
 753         mv78xx0_uart3_data[0].uartclk = tclk;
 754 }