git.oblomov.eu Git - linux-2.6/blob - 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/ata_platform.h>
  18 #include <linux/spi/orion_spi.h>
  19 #include <asm/page.h>
  20 #include <asm/timex.h>
  21 #include <asm/mach/map.h>
  22 #include <asm/mach/time.h>
  23 #include <mach/kirkwood.h>
  24 #include <plat/cache-feroceon-l2.h>
  25 #include <plat/ehci-orion.h>
  26 #include <plat/mv_xor.h>
  27 #include <plat/orion_nand.h>
  28 #include <plat/time.h>
  29 #include "common.h"
  30
  31 /*****************************************************************************
  32  * I/O Address Mapping
  33  ****************************************************************************/
  34 static struct map_desc kirkwood_io_desc[] __initdata = {
  35         {
  36                 .virtual        = KIRKWOOD_PCIE_IO_VIRT_BASE,
  37                 .pfn            = __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
  38                 .length         = KIRKWOOD_PCIE_IO_SIZE,
  39                 .type           = MT_DEVICE,
  40         }, {
  41                 .virtual        = KIRKWOOD_REGS_VIRT_BASE,
  42                 .pfn            = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
  43                 .length         = KIRKWOOD_REGS_SIZE,
  44                 .type           = MT_DEVICE,
  45         },
  46 };
  47
  48 void __init kirkwood_map_io(void)
  49 {
  50         iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
  51 }
  52
  53
  54 /*****************************************************************************
  55  * EHCI
  56  ****************************************************************************/
  57 static struct orion_ehci_data kirkwood_ehci_data = {
  58         .dram           = &kirkwood_mbus_dram_info,
  59 };
  60
  61 static u64 ehci_dmamask = 0xffffffffUL;
  62
  63
  64 /*****************************************************************************
  65  * EHCI0
  66  ****************************************************************************/
  67 static struct resource kirkwood_ehci_resources[] = {
  68         {
  69                 .start  = USB_PHYS_BASE,
  70                 .end    = USB_PHYS_BASE + 0x0fff,
  71                 .flags  = IORESOURCE_MEM,
  72         }, {
  73                 .start  = IRQ_KIRKWOOD_USB,
  74                 .end    = IRQ_KIRKWOOD_USB,
  75                 .flags  = IORESOURCE_IRQ,
  76         },
  77 };
  78
  79 static struct platform_device kirkwood_ehci = {
  80         .name           = "orion-ehci",
  81         .id             = 0,
  82         .dev            = {
  83                 .dma_mask               = &ehci_dmamask,
  84                 .coherent_dma_mask      = 0xffffffff,
  85                 .platform_data          = &kirkwood_ehci_data,
  86         },
  87         .resource       = kirkwood_ehci_resources,
  88         .num_resources  = ARRAY_SIZE(kirkwood_ehci_resources),
  89 };
  90
  91 void __init kirkwood_ehci_init(void)
  92 {
  93         platform_device_register(&kirkwood_ehci);
  94 }
  95
  96
  97 /*****************************************************************************
  98  * GE00
  99  ****************************************************************************/
 100 struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
 101         .dram           = &kirkwood_mbus_dram_info,
 102 };
 103
 104 static struct resource kirkwood_ge00_shared_resources[] = {
 105         {
 106                 .name   = "ge00 base",
 107                 .start  = GE00_PHYS_BASE + 0x2000,
 108                 .end    = GE00_PHYS_BASE + 0x3fff,
 109                 .flags  = IORESOURCE_MEM,
 110         }, {
 111                 .name   = "ge00 err irq",
 112                 .start  = IRQ_KIRKWOOD_GE00_ERR,
 113                 .end    = IRQ_KIRKWOOD_GE00_ERR,
 114                 .flags  = IORESOURCE_IRQ,
 115         },
 116 };
 117
 118 static struct platform_device kirkwood_ge00_shared = {
 119         .name           = MV643XX_ETH_SHARED_NAME,
 120         .id             = 0,
 121         .dev            = {
 122                 .platform_data  = &kirkwood_ge00_shared_data,
 123         },
 124         .num_resources  = ARRAY_SIZE(kirkwood_ge00_shared_resources),
 125         .resource       = kirkwood_ge00_shared_resources,
 126 };
 127
 128 static struct resource kirkwood_ge00_resources[] = {
 129         {
 130                 .name   = "ge00 irq",
 131                 .start  = IRQ_KIRKWOOD_GE00_SUM,
 132                 .end    = IRQ_KIRKWOOD_GE00_SUM,
 133                 .flags  = IORESOURCE_IRQ,
 134         },
 135 };
 136
 137 static struct platform_device kirkwood_ge00 = {
 138         .name           = MV643XX_ETH_NAME,
 139         .id             = 0,
 140         .num_resources  = 1,
 141         .resource       = kirkwood_ge00_resources,
 142 };
 143
 144 void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 145 {
 146         eth_data->shared = &kirkwood_ge00_shared;
 147         kirkwood_ge00.dev.platform_data = eth_data;
 148
 149         platform_device_register(&kirkwood_ge00_shared);
 150         platform_device_register(&kirkwood_ge00);
 151 }
 152
 153
 154 /*****************************************************************************
 155  * SoC RTC
 156  ****************************************************************************/
 157 static struct resource kirkwood_rtc_resource = {
 158         .start  = RTC_PHYS_BASE,
 159         .end    = RTC_PHYS_BASE + SZ_16 - 1,
 160         .flags  = IORESOURCE_MEM,
 161 };
 162
 163 void __init kirkwood_rtc_init(void)
 164 {
 165         platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
 166 }
 167
 168
 169 /*****************************************************************************
 170  * SATA
 171  ****************************************************************************/
 172 static struct resource kirkwood_sata_resources[] = {
 173         {
 174                 .name   = "sata base",
 175                 .start  = SATA_PHYS_BASE,
 176                 .end    = SATA_PHYS_BASE + 0x5000 - 1,
 177                 .flags  = IORESOURCE_MEM,
 178         }, {
 179                 .name   = "sata irq",
 180                 .start  = IRQ_KIRKWOOD_SATA,
 181                 .end    = IRQ_KIRKWOOD_SATA,
 182                 .flags  = IORESOURCE_IRQ,
 183         },
 184 };
 185
 186 static struct platform_device kirkwood_sata = {
 187         .name           = "sata_mv",
 188         .id             = 0,
 189         .dev            = {
 190                 .coherent_dma_mask      = 0xffffffff,
 191         },
 192         .num_resources  = ARRAY_SIZE(kirkwood_sata_resources),
 193         .resource       = kirkwood_sata_resources,
 194 };
 195
 196 void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 197 {
 198         sata_data->dram = &kirkwood_mbus_dram_info;
 199         kirkwood_sata.dev.platform_data = sata_data;
 200         platform_device_register(&kirkwood_sata);
 201 }
 202
 203
 204 /*****************************************************************************
 205  * SPI
 206  ****************************************************************************/
 207 static struct orion_spi_info kirkwood_spi_plat_data = {
 208 };
 209
 210 static struct resource kirkwood_spi_resources[] = {
 211         {
 212                 .start  = SPI_PHYS_BASE,
 213                 .end    = SPI_PHYS_BASE + SZ_512 - 1,
 214                 .flags  = IORESOURCE_MEM,
 215         },
 216 };
 217
 218 static struct platform_device kirkwood_spi = {
 219         .name           = "orion_spi",
 220         .id             = 0,
 221         .resource       = kirkwood_spi_resources,
 222         .dev            = {
 223                 .platform_data  = &kirkwood_spi_plat_data,
 224         },
 225         .num_resources  = ARRAY_SIZE(kirkwood_spi_resources),
 226 };
 227
 228 void __init kirkwood_spi_init()
 229 {
 230         platform_device_register(&kirkwood_spi);
 231 }
 232
 233
 234 /*****************************************************************************
 235  * UART0
 236  ****************************************************************************/
 237 static struct plat_serial8250_port kirkwood_uart0_data[] = {
 238         {
 239                 .mapbase        = UART0_PHYS_BASE,
 240                 .membase        = (char *)UART0_VIRT_BASE,
 241                 .irq            = IRQ_KIRKWOOD_UART_0,
 242                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 243                 .iotype         = UPIO_MEM,
 244                 .regshift       = 2,
 245                 .uartclk        = 0,
 246         }, {
 247         },
 248 };
 249
 250 static struct resource kirkwood_uart0_resources[] = {
 251         {
 252                 .start          = UART0_PHYS_BASE,
 253                 .end            = UART0_PHYS_BASE + 0xff,
 254                 .flags          = IORESOURCE_MEM,
 255         }, {
 256                 .start          = IRQ_KIRKWOOD_UART_0,
 257                 .end            = IRQ_KIRKWOOD_UART_0,
 258                 .flags          = IORESOURCE_IRQ,
 259         },
 260 };
 261
 262 static struct platform_device kirkwood_uart0 = {
 263         .name                   = "serial8250",
 264         .id                     = 0,
 265         .dev                    = {
 266                 .platform_data  = kirkwood_uart0_data,
 267         },
 268         .resource               = kirkwood_uart0_resources,
 269         .num_resources          = ARRAY_SIZE(kirkwood_uart0_resources),
 270 };
 271
 272 void __init kirkwood_uart0_init(void)
 273 {
 274         platform_device_register(&kirkwood_uart0);
 275 }
 276
 277
 278 /*****************************************************************************
 279  * UART1
 280  ****************************************************************************/
 281 static struct plat_serial8250_port kirkwood_uart1_data[] = {
 282         {
 283                 .mapbase        = UART1_PHYS_BASE,
 284                 .membase        = (char *)UART1_VIRT_BASE,
 285                 .irq            = IRQ_KIRKWOOD_UART_1,
 286                 .flags          = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
 287                 .iotype         = UPIO_MEM,
 288                 .regshift       = 2,
 289                 .uartclk        = 0,
 290         }, {
 291         },
 292 };
 293
 294 static struct resource kirkwood_uart1_resources[] = {
 295         {
 296                 .start          = UART1_PHYS_BASE,
 297                 .end            = UART1_PHYS_BASE + 0xff,
 298                 .flags          = IORESOURCE_MEM,
 299         }, {
 300                 .start          = IRQ_KIRKWOOD_UART_1,
 301                 .end            = IRQ_KIRKWOOD_UART_1,
 302                 .flags          = IORESOURCE_IRQ,
 303         },
 304 };
 305
 306 static struct platform_device kirkwood_uart1 = {
 307         .name                   = "serial8250",
 308         .id                     = 1,
 309         .dev                    = {
 310                 .platform_data  = kirkwood_uart1_data,
 311         },
 312         .resource               = kirkwood_uart1_resources,
 313         .num_resources          = ARRAY_SIZE(kirkwood_uart1_resources),
 314 };
 315
 316 void __init kirkwood_uart1_init(void)
 317 {
 318         platform_device_register(&kirkwood_uart1);
 319 }
 320
 321
 322 /*****************************************************************************
 323  * XOR
 324  ****************************************************************************/
 325 static struct mv_xor_platform_shared_data kirkwood_xor_shared_data = {
 326         .dram           = &kirkwood_mbus_dram_info,
 327 };
 328
 329 static u64 kirkwood_xor_dmamask = DMA_32BIT_MASK;
 330
 331
 332 /*****************************************************************************
 333  * XOR0
 334  ****************************************************************************/
 335 static struct resource kirkwood_xor0_shared_resources[] = {
 336         {
 337                 .name   = "xor 0 low",
 338                 .start  = XOR0_PHYS_BASE,
 339                 .end    = XOR0_PHYS_BASE + 0xff,
 340                 .flags  = IORESOURCE_MEM,
 341         }, {
 342                 .name   = "xor 0 high",
 343                 .start  = XOR0_HIGH_PHYS_BASE,
 344                 .end    = XOR0_HIGH_PHYS_BASE + 0xff,
 345                 .flags  = IORESOURCE_MEM,
 346         },
 347 };
 348
 349 static struct platform_device kirkwood_xor0_shared = {
 350         .name           = MV_XOR_SHARED_NAME,
 351         .id             = 0,
 352         .dev            = {
 353                 .platform_data = &kirkwood_xor_shared_data,
 354         },
 355         .num_resources  = ARRAY_SIZE(kirkwood_xor0_shared_resources),
 356         .resource       = kirkwood_xor0_shared_resources,
 357 };
 358
 359 static struct resource kirkwood_xor00_resources[] = {
 360         [0] = {
 361                 .start  = IRQ_KIRKWOOD_XOR_00,
 362                 .end    = IRQ_KIRKWOOD_XOR_00,
 363                 .flags  = IORESOURCE_IRQ,
 364         },
 365 };
 366
 367 static struct mv_xor_platform_data kirkwood_xor00_data = {
 368         .shared         = &kirkwood_xor0_shared,
 369         .hw_id          = 0,
 370         .pool_size      = PAGE_SIZE,
 371 };
 372
 373 static struct platform_device kirkwood_xor00_channel = {
 374         .name           = MV_XOR_NAME,
 375         .id             = 0,
 376         .num_resources  = ARRAY_SIZE(kirkwood_xor00_resources),
 377         .resource       = kirkwood_xor00_resources,
 378         .dev            = {
 379                 .dma_mask               = &kirkwood_xor_dmamask,
 380                 .coherent_dma_mask      = DMA_64BIT_MASK,
 381                 .platform_data          = (void *)&kirkwood_xor00_data,
 382         },
 383 };
 384
 385 static struct resource kirkwood_xor01_resources[] = {
 386         [0] = {
 387                 .start  = IRQ_KIRKWOOD_XOR_01,
 388                 .end    = IRQ_KIRKWOOD_XOR_01,
 389                 .flags  = IORESOURCE_IRQ,
 390         },
 391 };
 392
 393 static struct mv_xor_platform_data kirkwood_xor01_data = {
 394         .shared         = &kirkwood_xor0_shared,
 395         .hw_id          = 1,
 396         .pool_size      = PAGE_SIZE,
 397 };
 398
 399 static struct platform_device kirkwood_xor01_channel = {
 400         .name           = MV_XOR_NAME,
 401         .id             = 1,
 402         .num_resources  = ARRAY_SIZE(kirkwood_xor01_resources),
 403         .resource       = kirkwood_xor01_resources,
 404         .dev            = {
 405                 .dma_mask               = &kirkwood_xor_dmamask,
 406                 .coherent_dma_mask      = DMA_64BIT_MASK,
 407                 .platform_data          = (void *)&kirkwood_xor01_data,
 408         },
 409 };
 410
 411 void __init kirkwood_xor0_init(void)
 412 {
 413         platform_device_register(&kirkwood_xor0_shared);
 414
 415         /*
 416          * two engines can't do memset simultaneously, this limitation
 417          * satisfied by removing memset support from one of the engines.
 418          */
 419         dma_cap_set(DMA_MEMCPY, kirkwood_xor00_data.cap_mask);
 420         dma_cap_set(DMA_XOR, kirkwood_xor00_data.cap_mask);
 421         platform_device_register(&kirkwood_xor00_channel);
 422
 423         dma_cap_set(DMA_MEMCPY, kirkwood_xor01_data.cap_mask);
 424         dma_cap_set(DMA_MEMSET, kirkwood_xor01_data.cap_mask);
 425         dma_cap_set(DMA_XOR, kirkwood_xor01_data.cap_mask);
 426         platform_device_register(&kirkwood_xor01_channel);
 427 }
 428
 429
 430 /*****************************************************************************
 431  * XOR1
 432  ****************************************************************************/
 433 static struct resource kirkwood_xor1_shared_resources[] = {
 434         {
 435                 .name   = "xor 1 low",
 436                 .start  = XOR1_PHYS_BASE,
 437                 .end    = XOR1_PHYS_BASE + 0xff,
 438                 .flags  = IORESOURCE_MEM,
 439         }, {
 440                 .name   = "xor 1 high",
 441                 .start  = XOR1_HIGH_PHYS_BASE,
 442                 .end    = XOR1_HIGH_PHYS_BASE + 0xff,
 443                 .flags  = IORESOURCE_MEM,
 444         },
 445 };
 446
 447 static struct platform_device kirkwood_xor1_shared = {
 448         .name           = MV_XOR_SHARED_NAME,
 449         .id             = 1,
 450         .dev            = {
 451                 .platform_data = &kirkwood_xor_shared_data,
 452         },
 453         .num_resources  = ARRAY_SIZE(kirkwood_xor1_shared_resources),
 454         .resource       = kirkwood_xor1_shared_resources,
 455 };
 456
 457 static struct resource kirkwood_xor10_resources[] = {
 458         [0] = {
 459                 .start  = IRQ_KIRKWOOD_XOR_10,
 460                 .end    = IRQ_KIRKWOOD_XOR_10,
 461                 .flags  = IORESOURCE_IRQ,
 462         },
 463 };
 464
 465 static struct mv_xor_platform_data kirkwood_xor10_data = {
 466         .shared         = &kirkwood_xor1_shared,
 467         .hw_id          = 0,
 468         .pool_size      = PAGE_SIZE,
 469 };
 470
 471 static struct platform_device kirkwood_xor10_channel = {
 472         .name           = MV_XOR_NAME,
 473         .id             = 2,
 474         .num_resources  = ARRAY_SIZE(kirkwood_xor10_resources),
 475         .resource       = kirkwood_xor10_resources,
 476         .dev            = {
 477                 .dma_mask               = &kirkwood_xor_dmamask,
 478                 .coherent_dma_mask      = DMA_64BIT_MASK,
 479                 .platform_data          = (void *)&kirkwood_xor10_data,
 480         },
 481 };
 482
 483 static struct resource kirkwood_xor11_resources[] = {
 484         [0] = {
 485                 .start  = IRQ_KIRKWOOD_XOR_11,
 486                 .end    = IRQ_KIRKWOOD_XOR_11,
 487                 .flags  = IORESOURCE_IRQ,
 488         },
 489 };
 490
 491 static struct mv_xor_platform_data kirkwood_xor11_data = {
 492         .shared         = &kirkwood_xor1_shared,
 493         .hw_id          = 1,
 494         .pool_size      = PAGE_SIZE,
 495 };
 496
 497 static struct platform_device kirkwood_xor11_channel = {
 498         .name           = MV_XOR_NAME,
 499         .id             = 3,
 500         .num_resources  = ARRAY_SIZE(kirkwood_xor11_resources),
 501         .resource       = kirkwood_xor11_resources,
 502         .dev            = {
 503                 .dma_mask               = &kirkwood_xor_dmamask,
 504                 .coherent_dma_mask      = DMA_64BIT_MASK,
 505                 .platform_data          = (void *)&kirkwood_xor11_data,
 506         },
 507 };
 508
 509 void __init kirkwood_xor1_init(void)
 510 {
 511         platform_device_register(&kirkwood_xor1_shared);
 512
 513         /*
 514          * two engines can't do memset simultaneously, this limitation
 515          * satisfied by removing memset support from one of the engines.
 516          */
 517         dma_cap_set(DMA_MEMCPY, kirkwood_xor10_data.cap_mask);
 518         dma_cap_set(DMA_XOR, kirkwood_xor10_data.cap_mask);
 519         platform_device_register(&kirkwood_xor10_channel);
 520
 521         dma_cap_set(DMA_MEMCPY, kirkwood_xor11_data.cap_mask);
 522         dma_cap_set(DMA_MEMSET, kirkwood_xor11_data.cap_mask);
 523         dma_cap_set(DMA_XOR, kirkwood_xor11_data.cap_mask);
 524         platform_device_register(&kirkwood_xor11_channel);
 525 }
 526
 527
 528 /*****************************************************************************
 529  * Time handling
 530  ****************************************************************************/
 531 int kirkwood_tclk;
 532
 533 int __init kirkwood_find_tclk(void)
 534 {
 535         u32 dev, rev;
 536
 537         kirkwood_pcie_id(&dev, &rev);
 538         if (dev == MV88F6281_DEV_ID && rev == MV88F6281_REV_A0)
 539                 return 200000000;
 540
 541         return 166666667;
 542 }
 543
 544 static void kirkwood_timer_init(void)
 545 {
 546         kirkwood_tclk = kirkwood_find_tclk();
 547         orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
 548 }
 549
 550 struct sys_timer kirkwood_timer = {
 551         .init = kirkwood_timer_init,
 552 };
 553
 554
 555 /*****************************************************************************
 556  * General
 557  ****************************************************************************/
 558 /*
 559  * Identify device ID and revision.
 560  */
 561 static char * __init kirkwood_id(void)
 562 {
 563         u32 dev, rev;
 564
 565         kirkwood_pcie_id(&dev, &rev);
 566
 567         if (dev == MV88F6281_DEV_ID) {
 568                 if (rev == MV88F6281_REV_Z0)
 569                         return "MV88F6281-Z0";
 570                 else if (rev == MV88F6281_REV_A0)
 571                         return "MV88F6281-A0";
 572                 else
 573                         return "MV88F6281-Rev-Unsupported";
 574         } else if (dev == MV88F6192_DEV_ID) {
 575                 if (rev == MV88F6192_REV_Z0)
 576                         return "MV88F6192-Z0";
 577                 else if (rev == MV88F6192_REV_A0)
 578                         return "MV88F6192-A0";
 579                 else
 580                         return "MV88F6192-Rev-Unsupported";
 581         } else if (dev == MV88F6180_DEV_ID) {
 582                 if (rev == MV88F6180_REV_A0)
 583                         return "MV88F6180-Rev-A0";
 584                 else
 585                         return "MV88F6180-Rev-Unsupported";
 586         } else {
 587                 return "Device-Unknown";
 588         }
 589 }
 590
 591 static void __init kirkwood_l2_init(void)
 592 {
 593 #ifdef CONFIG_CACHE_FEROCEON_L2_WRITETHROUGH
 594         writel(readl(L2_CONFIG_REG) | L2_WRITETHROUGH, L2_CONFIG_REG);
 595         feroceon_l2_init(1);
 596 #else
 597         writel(readl(L2_CONFIG_REG) & ~L2_WRITETHROUGH, L2_CONFIG_REG);
 598         feroceon_l2_init(0);
 599 #endif
 600 }
 601
 602 void __init kirkwood_init(void)
 603 {
 604         printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
 605                 kirkwood_id(), kirkwood_tclk);
 606         kirkwood_ge00_shared_data.t_clk = kirkwood_tclk;
 607         kirkwood_spi_plat_data.tclk = kirkwood_tclk;
 608         kirkwood_uart0_data[0].uartclk = kirkwood_tclk;
 609         kirkwood_uart1_data[0].uartclk = kirkwood_tclk;
 610
 611         kirkwood_setup_cpu_mbus();
 612
 613 #ifdef CONFIG_CACHE_FEROCEON_L2
 614         kirkwood_l2_init();
 615 #endif
 616 }